修改UI

处理粘贴

.home/Library/Logs/CoreSimulator/CoreSimulator.com.apple.dt.xcodebuild.log

@@ -0,0 +1,17 @@
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Error>: Unable to deliver request ({
+	    "developer_dir" = "/Applications/Xcode.app/Contents/Developer";
+	    request = "set_developer_dir";
+	}) because we are not connected to CoreSimulatorService.
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Warning>: Unable to discover any Simulator runtimes. Developer Directory is /Applications/Xcode.app/Contents/Developer.
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Error>: Could not kickstart simdiskimaged; SimDiskImageManager services will not be available: Error Domain=NSPOSIXErrorDomain Code=53 "Software caused connection abort" UserInfo={NSLocalizedDescription=Error returned in reply from CoreSimulatorService: Connection invalid}
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Error>: simdiskimaged returned error (invalid), marking disconnected.
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Error>: simdiskimaged returned error (invalid), marking disconnected.
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Error>: Could not get list of trusted mount directories: Error Domain=com.apple.CoreSimulator.SimError Code=410 "The service used to manage runtime disk images (simdiskimaged) crashed or is not responding" UserInfo={NSLocalizedDescription=The service used to manage runtime disk images (simdiskimaged) crashed or is not responding}
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Error>: Unable to deliver request ({
+	    request = "notification_subscription";
+	    "set_path" = "/Users/mac/Library/Developer/CoreSimulator/Devices";
+	}) because we are not connected to CoreSimulatorService.
+Dec 18 13:42:00 macbookpro com.apple.dt.xcodebuild[42901] <Error>: Unable to deliver request ({
+	    request = "notification_subscription";
+	    "set_path" = "/Users/mac/Library/Developer/CoreSimulator/Devices";
+	}) because we are not connected to CoreSimulatorService.

CustomKeyboard/CustomKeyboard.entitlements

@@ -2,10 +2,17 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
-    <key>keychain-access-groups</key>
-    <array>
-        <string>$(AppIdentifierPrefix)com.loveKey.nyx.shared</string>
-    </array>
+	<key>com.apple.developer.associated-domains</key>
+	<array>
+		<string>applinks:app.tknb.net</string>
+	</array>
+	<key>com.apple.security.application-groups</key>
+	<array>
+		<string>group.com.loveKey.nyx</string>
+	</array>
+	<key>keychain-access-groups</key>
+	<array>
+		<string>$(AppIdentifierPrefix)com.loveKey.nyx.shared</string>
+	</array>
 </dict>
 </plist>
-

CustomKeyboard/Info.plist

@@ -2,6 +2,10 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
+	<key>LSApplicationQueriesSchemes</key>
+	<array>
+		<string>kbkeyboardAppExtension</string>
+	</array>
 	<key>NSExtension</key>
 	<dict>
 		<key>NSExtensionAttributes</key>

CustomKeyboard/KeyboardAssets.xcassets/App_icon.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "App_icon.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "App_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "App_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/ai_key_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "切图 270@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "切图 270@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "back_keybord_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "back_keybord_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/buy_sel_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "buy_sel_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "buy_sel_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/home_ai_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "home_ai_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "home_ai_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/home_chat_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "home_chat_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "home_chat_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/home_emotion_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "home_emotion_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "home_emotion_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/home_keyboard_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "home_keyboard_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "home_keyboard_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/kb_del_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "kb_del_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "kb_del_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/kb_zt_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "kb_zt_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "kb_zt_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/keybord_bg_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "keybord_bg_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "keybord_bg_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardAssets.xcassets/upgrad_vip_icon.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "upgrad_vip_icon@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "upgrad_vip_icon@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

CustomKeyboard/KeyboardViewController.m

@@ -14,14 +14,42 @@
 #import "Masonry.h"
 #import "KBAuthManager.h"
 #import "KBFullAccessManager.h"
+#import "KBSkinManager.h"
+#import "KBSkinInstallBridge.h"
+#import "KBHostAppLauncher.h"
+#import "KBKeyboardSubscriptionView.h"
+#import "KBKeyboardSubscriptionProduct.h"
+#import "KBBackspaceUndoManager.h"
 
-static CGFloat KEYBOARDHEIGHT = 256 + 20;
+// 提前声明一个类别，使编译器在 static 回调中识别 kb_consumePendingShopSkin 方法。
+@interface KeyboardViewController (KBSkinShopBridge)
+- (void)kb_consumePendingShopSkin;
+@end
 
-@interface KeyboardViewController () <KBKeyBoardMainViewDelegate, KBFunctionViewDelegate>
+// 以 375 宽设计稿为基准的键盘总高度（包括顶部工具栏）
+static const CGFloat kKBKeyboardDesignHeight = 250.0f;
+
+static void KBSkinInstallNotificationCallback(CFNotificationCenterRef center,
+                                              void *observer,
+                                              CFStringRef name,
+                                              const void *object,
+                                              CFDictionaryRef userInfo) {
+    KeyboardViewController *strongSelf = (__bridge KeyboardViewController *)observer;
+    if (!strongSelf) { return; }
+    dispatch_async(dispatch_get_main_queue(), ^{
+        if ([strongSelf respondsToSelector:@selector(kb_consumePendingShopSkin)]) {
+            [strongSelf kb_consumePendingShopSkin];
+        }
+    });
+}
+
+@interface KeyboardViewController () <KBKeyBoardMainViewDelegate, KBFunctionViewDelegate, KBKeyboardSubscriptionViewDelegate>
 @property (nonatomic, strong) UIButton *nextKeyboardButton; // 系统“下一个键盘”按钮（可选）
 @property (nonatomic, strong) KBKeyBoardMainView *keyBoardMainView;   // 功能面板视图（点击工具栏第0个时显示）
 @property (nonatomic, strong) KBFunctionView *functionView;   // 功能面板视图（点击工具栏第0个时显示）
 @property (nonatomic, strong) KBSettingView *settingView;     // 设置页
+@property (nonatomic, strong) UIImageView *bgImageView;       // 背景图（在底层）
+@property (nonatomic, strong) KBKeyboardSubscriptionView *subscriptionView;
 @end
 
 @implementation KeyboardViewController
@@ -40,26 +68,68 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
     __unused id token = [[NSNotificationCenter defaultCenter] addObserverForName:KBFullAccessChangedNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(__unused NSNotification * _Nonnull note) {
         // 如需，可在此刷新与完全访问相关的 UI
     }];
+
+    // 皮肤变化时，立即应用
+    __unused id token2 = [[NSNotificationCenter defaultCenter] addObserverForName:KBSkinDidChangeNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(__unused NSNotification * _Nonnull note) {
+        [self kb_applyTheme];
+    }];
+    [self kb_applyTheme];
+    CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(),
+                                    (__bridge const void *)(self),
+                                    KBSkinInstallNotificationCallback,
+                                    (__bridge CFStringRef)KBDarwinSkinInstallRequestNotification,
+                                    NULL,
+                                    CFNotificationSuspensionBehaviorDeliverImmediately);
+    [self kb_consumePendingShopSkin];
+    
+}
+
+- (void)viewWillAppear:(BOOL)animated{
+    [super viewWillAppear:animated];
+    [[KBLocalizationManager shared] reloadFromSharedStorageIfNeeded];
 }
 
 
 - (void)setupUI {
-    // 固定键盘整体高度
-    [self.view.heightAnchor constraintEqualToConstant:KEYBOARDHEIGHT].active = YES;
+    self.view.translatesAutoresizingMaskIntoConstraints = NO;
+    
+    // 按屏幕宽度对设计值做等比缩放，避免在不同机型上键盘整体高度失真导致皮肤被压缩/拉伸
+    CGFloat keyboardHeight = KBFit(kKBKeyboardDesignHeight);
+    CGFloat screenWidth = [UIScreen mainScreen].bounds.size.width;
+    CGFloat outerVerticalInset = KBFit(4.0f);
+
+    NSLayoutConstraint *h = [self.view.heightAnchor constraintEqualToConstant:keyboardHeight];
+    NSLayoutConstraint *w = [self.view.widthAnchor  constraintEqualToConstant:screenWidth];
+
+    h.priority = UILayoutPriorityRequired;
+    w.priority = UILayoutPriorityRequired;
+    [NSLayoutConstraint activateConstraints:@[h, w]];
+    // 关闭 UIInputView 自适应（某些系统版本会尝试放大为全屏高度导致冲突）
+    if ([self.view isKindOfClass:[UIInputView class]]) {
+        UIInputView *iv = (UIInputView *)self.view;
+        if ([iv respondsToSelector:@selector(setAllowsSelfSizing:)]) {
+            iv.allowsSelfSizing = NO;
+        }
+    }
+    // 背景图铺底
+    [self.view addSubview:self.bgImageView];
+    [self.bgImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.equalTo(self.view);
+    }];
     // 预置功能面板（默认隐藏），与键盘区域共享相同布局
     self.functionView.hidden = YES;
     [self.view addSubview:self.functionView];
     [self.functionView mas_makeConstraints:^(MASConstraintMaker *make) {
         make.left.right.equalTo(self.view);
-        make.top.equalTo(self.view).offset(4);
-        make.bottom.equalTo(self.view.mas_bottom).offset(-4);
+        make.top.equalTo(self.view).offset(0);
+        make.bottom.equalTo(self.view).offset(0);
     }];
     
     [self.view addSubview:self.keyBoardMainView];
     [self.keyBoardMainView mas_makeConstraints:^(MASConstraintMaker *make) {
         make.left.right.equalTo(self.view);
-        make.top.equalTo(self.view).offset(4);
-        make.bottom.equalTo(self.view.mas_bottom).offset(-4);
+        make.top.equalTo(self.view).offset(0);
+        make.bottom.equalTo(self.view.mas_bottom).offset(-0);
     }];
 }
 
@@ -73,6 +143,10 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
     self.functionView.hidden = !show;
     self.keyBoardMainView.hidden = show;
 
+    if (show) {
+        [self hideSubscriptionPanel];
+    }
+    
     // 可选：把当前显示的视图置顶，避免层级遮挡
     if (show) {
         [self.view bringSubviewToFront:self.functionView];
@@ -118,10 +192,67 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
     }
 }
 
+- (void)showSubscriptionPanel {
+    // 1) 先判断权限：未开启“完全访问”则走引导逻辑
+    if (![[KBFullAccessManager shared] hasFullAccess]) {
+        // 未开启完全访问：保持原有引导路径
+//        [KBHUD showInfo:KBLocalized(@"处理中…")];
+        [[KBFullAccessManager shared] ensureFullAccessOrGuideInView:self.view];
+        return;
+    }
+    // 点击充值要先判断是否登录
+    // 2) 权限没问题，再判断是否登录：未登录 -> 直接拉起主 App，由主 App 负责完成登录
+    if (!KBAuthManager.shared.isLoggedIn) {
+        NSString *schemeStr = [NSString stringWithFormat:@"%@://login?src=keyboard", KB_APP_SCHEME];
+        NSURL *scheme = [NSURL URLWithString:schemeStr];
+        // 从当前视图作为起点，通过响应链找到 UIApplication 再调起主 App
+        BOOL ok = [KBHostAppLauncher openHostAppURL:scheme fromResponder:self.view];
+        return;
+    }
+    [self showFunctionPanel:NO];
+    KBKeyboardSubscriptionView *panel = self.subscriptionView;
+    if (!panel.superview) {
+        panel.hidden = YES;
+        [self.view addSubview:panel];
+        [panel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.edges.equalTo(self.keyBoardMainView);
+        }];
+    }
+    [self.view bringSubviewToFront:panel];
+    panel.hidden = NO;
+    panel.alpha = 0.0;
+    CGFloat height = CGRectGetHeight(self.view.bounds);
+    if (height <= 0) { height = 260; }
+    panel.transform = CGAffineTransformMakeTranslation(0, height);
+    [panel refreshProductsIfNeeded];
+    [UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{
+        panel.alpha = 1.0;
+        panel.transform = CGAffineTransformIdentity;
+    } completion:nil];
+}
+
+- (void)hideSubscriptionPanel {
+    if (!self.subscriptionView || self.subscriptionView.hidden) { return; }
+    CGFloat height = CGRectGetHeight(self.subscriptionView.bounds);
+    if (height <= 0) { height = CGRectGetHeight(self.view.bounds); }
+    KBKeyboardSubscriptionView *panel = self.subscriptionView;
+    [UIView animateWithDuration:0.22 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{
+        panel.alpha = 0.0;
+        panel.transform = CGAffineTransformMakeTranslation(0, height);
+    } completion:^(BOOL finished) {
+        panel.hidden = YES;
+        panel.alpha = 1.0;
+        panel.transform = CGAffineTransformIdentity;
+    }];
+}
+
 
 
 // MARK: - KBKeyBoardMainViewDelegate
 - (void)keyBoardMainView:(KBKeyBoardMainView *)keyBoardMainView didTapKey:(KBKey *)key {
+    if (key.type != KBKeyTypeShift && key.type != KBKeyTypeModeChange) {
+        [[KBBackspaceUndoManager shared] registerNonClearAction];
+    }
     switch (key.type) {
         case KBKeyTypeCharacter:
             [self.textDocumentProxy insertText:key.output ?: key.title ?: @""]; break;
@@ -134,7 +265,7 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
         case KBKeyTypeGlobe:
             [self advanceToNextInputMode]; break;
         case KBKeyTypeCustom:
-            // 点击自定义键（如“AI”）切换到功能面板
+            // 点击自定义键切换到功能面板
             [self showFunctionPanel:YES];
             break;
         case KBKeyTypeModeChange:
@@ -147,15 +278,29 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
 - (void)keyBoardMainView:(KBKeyBoardMainView *)keyBoardMainView didTapToolActionAtIndex:(NSInteger)index {
     if (index == 0) {
         [self showFunctionPanel:YES];
-    } else {
-        [self showFunctionPanel:NO];
+        return;
     }
+    [self showFunctionPanel:NO];
 }
 
 - (void)keyBoardMainViewDidTapSettings:(KBKeyBoardMainView *)keyBoardMainView {
     [self showSettingView:YES];
 }
 
+- (void)keyBoardMainView:(KBKeyBoardMainView *)keyBoardMainView didSelectEmoji:(NSString *)emoji {
+    if (emoji.length == 0) { return; }
+    [[KBBackspaceUndoManager shared] registerNonClearAction];
+    [self.textDocumentProxy insertText:emoji];
+}
+
+- (void)keyBoardMainViewDidTapUndo:(KBKeyBoardMainView *)keyBoardMainView {
+    [[KBBackspaceUndoManager shared] performUndoFromResponder:self.view];
+}
+
+- (void)keyBoardMainViewDidTapEmojiSearch:(KBKeyBoardMainView *)keyBoardMainView {
+    [KBHUD showInfo:KBLocalized(@"Search coming soon")];
+}
+
 // MARK: - KBFunctionViewDelegate
 - (void)functionView:(KBFunctionView *)functionView didTapToolActionAtIndex:(NSInteger)index {
     // 需求：当 index == 0 时，切回键盘主视图
@@ -163,6 +308,36 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
         [self showFunctionPanel:NO];
     }
 }
+- (void)functionView:(KBFunctionView *_Nullable)functionView didRightTapToolActionAtIndex:(NSInteger)index{
+    NSString *schemeStr = [NSString stringWithFormat:@"%@://recharge?src=keyboard", KB_APP_SCHEME];
+    NSURL *scheme = [NSURL URLWithString:schemeStr];
+//
+//    if (!ul && !scheme) { return; }
+//
+    // 从当前视图作为起点，通过响应链找到 UIApplication 再调起主 App
+    BOOL ok = [KBHostAppLauncher openHostAppURL:scheme fromResponder:self.view];
+
+       if (!ok) {
+           // 失败兜底：给个文案提示
+           // 比如：请回到桌面手动打开 XXX App 进行设置/充值
+           [KBHUD showInfo:@"请回到桌面手动打开App进行充值"];
+       }
+}
+
+- (void)functionViewDidRequestSubscription:(KBFunctionView *)functionView {
+    [self showSubscriptionPanel];
+}
+
+#pragma mark - KBKeyboardSubscriptionViewDelegate
+
+- (void)subscriptionViewDidTapClose:(KBKeyboardSubscriptionView *)view {
+    [self hideSubscriptionPanel];
+}
+
+- (void)subscriptionView:(KBKeyboardSubscriptionView *)view didTapPurchaseForProduct:(KBKeyboardSubscriptionProduct *)product {
+    [self hideSubscriptionPanel];
+    [self kb_openRechargeForProduct:product];
+}
 
 #pragma mark - lazy
 - (KBKeyBoardMainView *)keyBoardMainView{
@@ -188,33 +363,135 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
     return _settingView;
 }
 
+- (KBKeyboardSubscriptionView *)subscriptionView {
+    if (!_subscriptionView) {
+        _subscriptionView = [[KBKeyboardSubscriptionView alloc] init];
+        _subscriptionView.delegate = self;
+        _subscriptionView.hidden = YES;
+        _subscriptionView.alpha = 0.0;
+    }
+    return _subscriptionView;
+}
+
 
 #pragma mark - Actions
 
+- (void)kb_openRechargeForProduct:(KBKeyboardSubscriptionProduct *)product {
+    if (![product isKindOfClass:KBKeyboardSubscriptionProduct.class] || product.productId.length == 0) {
+        [KBHUD showInfo:KBLocalized(@"Product unavailable")];
+        return;
+    }
+    NSString *encodedId = [self.class kb_urlEncodedString:product.productId];
+    NSString *title = [product displayTitle];
+    NSString *encodedTitle = [self.class kb_urlEncodedString:title];
+    NSMutableArray<NSString *> *params = [NSMutableArray arrayWithObjects:@"autoPay=1", @"prefill=1", nil];
+    if (encodedId.length) {
+        [params addObject:[NSString stringWithFormat:@"productId=%@", encodedId]];
+    }
+    if (encodedTitle.length) {
+        [params addObject:[NSString stringWithFormat:@"productTitle=%@", encodedTitle]];
+    }
+    NSString *query = [params componentsJoinedByString:@"&"];
+    NSString *urlString = [NSString stringWithFormat:@"%@://recharge?src=keyboard&%@", KB_APP_SCHEME, query];
+    NSURL *scheme = [NSURL URLWithString:urlString];
+    BOOL success = [KBHostAppLauncher openHostAppURL:scheme fromResponder:self.view];
+    if (!success) {
+        [KBHUD showInfo:KBLocalized(@"Please open the App to finish purchase")];
+    }
+}
+
++ (NSString *)kb_urlEncodedString:(NSString *)value {
+    if (value.length == 0) { return @""; }
+    NSString *reserved = @"!*'();:@&=+$,/?%#[]";
+    NSMutableCharacterSet *allowed = [[NSCharacterSet URLQueryAllowedCharacterSet] mutableCopy];
+    [allowed removeCharactersInString:reserved];
+    return [value stringByAddingPercentEncodingWithAllowedCharacters:allowed] ?: @"";
+}
+
 - (void)onTapSettingsBack {
     [self showSettingView:NO];
 }
 
+- (void)dealloc {
+    CFNotificationCenterRemoveObserver(CFNotificationCenterGetDarwinNotifyCenter(),
+                                       (__bridge const void *)(self),
+                                       (__bridge CFStringRef)KBDarwinSkinInstallRequestNotification,
+                                       NULL);
+}
+
 
 // 当键盘第一次显示时，尝试唤起主 App 以提示登录（由主 App 决定是否真的弹登录）。
 - (void)viewDidAppear:(BOOL)animated {
     [super viewDidAppear:animated];
-    if (!_kb_didTriggerLoginDeepLinkOnce) {
-        _kb_didTriggerLoginDeepLinkOnce = YES;
-        // 仅在未登录时尝试拉起主App登录
-        if (!KBAuthManager.shared.isLoggedIn) {
-            [self kb_tryOpenContainerForLoginIfNeeded];
-        }
+//    if (!_kb_didTriggerLoginDeepLinkOnce) {
+//        _kb_didTriggerLoginDeepLinkOnce = YES;
+//        // 仅在未登录时尝试拉起主App登录
+//        if (!KBAuthManager.shared.isLoggedIn) {
+//            [self kb_tryOpenContainerForLoginIfNeeded];
+//        }
+//    }
+}
+
+//- (void)kb_tryOpenContainerForLoginIfNeeded {
+//    // 使用与主 App 一致的自定义 Scheme
+//    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@@//login?src=keyboard", KB_APP_SCHEME]];
+//    if (!url) return;
+//    KBWeakSelf
+//    [self.extensionContext openURL:url completionHandler:^(__unused BOOL success) {
+//        // 即使失败也不重复尝试；避免打扰。
+//        __unused typeof(weakSelf) selfStrong = weakSelf;
+//    }];
+//}
+
+#pragma mark - Theme
+
+- (void)kb_applyTheme {
+    KBSkinTheme *t = [KBSkinManager shared].current;
+    UIImage *img = [[KBSkinManager shared] currentBackgroundImage];
+    self.bgImageView.image = img;
+    BOOL hasImg = (img != nil);
+    self.view.backgroundColor = hasImg ? [UIColor clearColor] : t.keyboardBackground;
+    self.keyBoardMainView.backgroundColor = hasImg ? [UIColor clearColor] : t.keyboardBackground;
+    // 触发键区按主题重绘
+    if ([self.keyBoardMainView respondsToSelector:@selector(kb_applyTheme)]) {
+        // method declared in KBKeyBoardMainView.h
+        #pragma clang diagnostic push
+        #pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+        [self.keyBoardMainView performSelector:@selector(kb_applyTheme)];
+        #pragma clang diagnostic pop
+    }
+    if ([self.functionView respondsToSelector:@selector(kb_applyTheme)]) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+        [self.functionView performSelector:@selector(kb_applyTheme)];
+#pragma clang diagnostic pop
     }
 }
 
-- (void)kb_tryOpenContainerForLoginIfNeeded {
-    NSURL *url = [NSURL URLWithString:@"kbkeyboard://login?src=keyboard"];
-    if (!url) return;
-    __weak typeof(self) weakSelf = self;
-    [self.extensionContext openURL:url completionHandler:^(__unused BOOL success) {
-        // 即使失败也不重复尝试；避免打扰。
-        __unused typeof(weakSelf) selfStrong = weakSelf;
+- (void)kb_consumePendingShopSkin {
+    KBWeakSelf
+    [KBSkinInstallBridge consumePendingRequestFromBundle:NSBundle.mainBundle
+                                              completion:^(BOOL success, NSError * _Nullable error) {
+        if (!success) {
+            if (error) {
+                NSLog(@"[Keyboard] skin request failed: %@", error);
+                [KBHUD showInfo:KBLocalized(@"皮肤资源准备失败，请稍后再试")];
+            }
+            return;
+        }
+        [weakSelf kb_applyTheme];
+        [KBHUD showInfo:KBLocalized(@"皮肤已更新，立即体验吧")];
     }];
 }
+
+#pragma mark - Lazy
+
+- (UIImageView *)bgImageView {
+    if (!_bgImageView) {
+        _bgImageView = [[UIImageView alloc] init];
+        _bgImageView.contentMode = UIViewContentModeScaleAspectFill;
+        _bgImageView.clipsToBounds = YES;
+    }
+    return _bgImageView;
+}
 @end

CustomKeyboard/Manager/KBEmojiDataProvider.h

@@ -0,0 +1,46 @@
+//
+//  KBEmojiDataProvider.h
+//  CustomKeyboard
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+FOUNDATION_EXPORT NSString * const KBEmojiRecentsDidChangeNotification;
+
+@class KBEmojiCategory, KBEmojiItem;
+
+@interface KBEmojiItem : NSObject <NSCopying>
+@property (nonatomic, copy, readonly) NSString *value;
+@property (nonatomic, copy, readonly) NSString *name;
+- (instancetype)initWithValue:(NSString *)value name:(NSString *)name;
+@end
+
+@interface KBEmojiCategory : NSObject
+@property (nonatomic, copy, readonly) NSString *identifier;
+@property (nonatomic, copy, readonly) NSString *displayTitle;
+@property (nonatomic, copy, readonly) NSString *iconSymbol;
+@property (nonatomic, assign, readonly, getter=isDynamic) BOOL dynamic;
+@property (nonatomic, copy, readonly) NSArray<KBEmojiItem *> *items;
+@end
+
+@interface KBEmojiDataProvider : NSObject
+
++ (instancetype)shared;
+
+/// 所有分类（按系统顺序），包含“常用”。
+@property (nonatomic, copy, readonly) NSArray<KBEmojiCategory *> *categories;
+
+/// 记录一次 emoji 选择，并刷新“常用”分类。
+- (void)recordEmojiSelection:(NSString *)emoji;
+
+/// 重新加载 JSON（若首次调用）。
+- (void)reloadIfNeeded;
+
+/// 更新当前语言对应的分类标题。
+- (void)refreshLocalizedTitles;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Manager/KBEmojiDataProvider.m

@@ -0,0 +1,270 @@
+//
+//  KBEmojiDataProvider.m
+//  CustomKeyboard
+//
+
+#import "KBEmojiDataProvider.h"
+#import "KBLocalizationManager.h"
+#import "KBConfig.h"
+
+NSString * const KBEmojiRecentsDidChangeNotification = @"KBEmojiRecentsDidChangeNotification";
+
+static NSString * const kKBEmojiJSONFileName = @"emoji_categories";
+static NSString * const kKBEmojiRecentsStoreKey = @"KBEmojiRecentEmojis";
+static NSString * const kKBEmojiRecentsCategoryId = @"recents";
+static const NSUInteger kKBEmojiRecentsLimit = 32;
+
+#pragma mark - Model Implementations
+
+@interface KBEmojiItem ()
+@property (nonatomic, copy, readwrite) NSString *value;
+@property (nonatomic, copy, readwrite) NSString *name;
+@end
+
+@implementation KBEmojiItem
+
+- (instancetype)initWithValue:(NSString *)value name:(NSString *)name {
+    if (self = [super init]) {
+        _value = [value copy];
+        _name = [name copy];
+    }
+    return self;
+}
+
+- (id)copyWithZone:(NSZone *)zone {
+    KBEmojiItem *item = [[[self class] allocWithZone:zone] initWithValue:self.value name:self.name];
+    return item;
+}
+
+@end
+
+@interface KBEmojiCategory ()
+@property (nonatomic, copy, readwrite) NSString *identifier;
+@property (nonatomic, copy) NSDictionary<NSString *, NSString *> *titleMap;
+@property (nonatomic, copy, readwrite) NSString *displayTitle;
+@property (nonatomic, copy, readwrite) NSString *iconSymbol;
+@property (nonatomic, assign, readwrite, getter=isDynamic) BOOL dynamic;
+@property (nonatomic, copy, readwrite) NSArray<KBEmojiItem *> *items;
+@end
+
+@implementation KBEmojiCategory
+
+- (void)refreshDisplayTitleForLanguage:(NSString *)lang {
+    if (lang.length == 0) {
+        lang = KBLanguageCodeEnglish;
+    }
+    NSString *title = self.titleMap[lang];
+    if (title.length == 0) {
+        if ([lang.lowercaseString hasPrefix:@"zh"]) {
+            title = self.titleMap[@"zh-Hans"] ?: self.titleMap[@"zh-hans"];
+        }
+    }
+    if (title.length == 0) {
+        title = self.titleMap[@"en"];
+    }
+    if (title.length == 0) {
+        title = self.titleMap.allValues.firstObject;
+    }
+    self.displayTitle = title ?: @"";
+}
+
+@end
+
+#pragma mark - Data Provider
+
+@interface KBEmojiDataProvider ()
+@property (nonatomic, copy) NSArray<KBEmojiCategory *> *categoriesInternal;
+@property (nonatomic, strong) NSMutableDictionary<NSString *, KBEmojiItem *> *itemLookup;
+@property (nonatomic, strong) NSMutableOrderedSet<NSString *> *recentValues;
+@end
+
+@implementation KBEmojiDataProvider
+
++ (instancetype)shared {
+    static KBEmojiDataProvider *m;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        m = [KBEmojiDataProvider new];
+        [[NSNotificationCenter defaultCenter] addObserver:m
+                                                 selector:@selector(onLocalizationChanged:)
+                                                     name:KBLocalizationDidChangeNotification
+                                                   object:nil];
+    });
+    return m;
+}
+
+- (void)dealloc {
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+- (NSArray<KBEmojiCategory *> *)categories {
+    [self reloadIfNeeded];
+    return self.categoriesInternal ?: @[];
+}
+
+- (void)reloadIfNeeded {
+    if (self.categoriesInternal.count > 0) { return; }
+    [self loadEmojiJSON];
+    [self refreshLocalizedTitles];
+    [self loadRecentsFromStore];
+    [self rebuildRecentsCategory];
+}
+
+- (void)loadEmojiJSON {
+    NSString *path = [[NSBundle mainBundle] pathForResource:kKBEmojiJSONFileName ofType:@"json"];
+    if (path.length == 0) {
+        return;
+    }
+    NSData *data = [NSData dataWithContentsOfFile:path];
+    if (data.length == 0) { return; }
+
+    NSError *err = nil;
+    NSDictionary *root = [NSJSONSerialization JSONObjectWithData:data options:0 error:&err];
+    if (!root || err) {
+        NSLog(@"[Emoji] failed to parse json: %@", err);
+        return;
+    }
+    NSArray *catArray = root[@"categories"];
+    if (![catArray isKindOfClass:NSArray.class]) {
+        return;
+    }
+
+    NSMutableArray<KBEmojiCategory *> *tmpCats = [NSMutableArray arrayWithCapacity:catArray.count];
+    self.itemLookup = [NSMutableDictionary dictionary];
+
+    for (NSDictionary *catDict in catArray) {
+        if (![catDict isKindOfClass:NSDictionary.class]) continue;
+        KBEmojiCategory *category = [KBEmojiCategory new];
+        category.identifier = catDict[@"id"] ?: @"";
+        NSDictionary *titleMap = catDict[@"title"];
+        if ([titleMap isKindOfClass:NSDictionary.class]) {
+            category.titleMap = titleMap;
+        } else {
+            category.titleMap = @{};
+        }
+        NSString *iconKey = catDict[@"icon"];
+        category.iconSymbol = [self symbolForIconKey:iconKey];
+        NSString *type = catDict[@"type"];
+        category.dynamic = [type.lowercaseString isEqualToString:@"dynamic"];
+
+        NSArray *emojiArray = catDict[@"emojis"];
+        NSMutableArray<KBEmojiItem *> *items = [NSMutableArray arrayWithCapacity:[emojiArray count]];
+        if ([emojiArray isKindOfClass:NSArray.class]) {
+            for (NSDictionary *emojiDict in emojiArray) {
+                if (![emojiDict isKindOfClass:NSDictionary.class]) continue;
+                NSString *value = emojiDict[@"value"];
+                if (value.length == 0) continue;
+                NSString *name = emojiDict[@"name"] ?: @"";
+                KBEmojiItem *item = [[KBEmojiItem alloc] initWithValue:value name:name];
+                [items addObject:item];
+                if (value.length > 0) {
+                    self.itemLookup[value] = item;
+                }
+            }
+        }
+        category.items = items.copy;
+        [tmpCats addObject:category];
+    }
+    self.categoriesInternal = tmpCats.copy;
+}
+
+- (NSString *)symbolForIconKey:(NSString *)key {
+    static NSDictionary<NSString *, NSString *> *map;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        map = @{
+            @"emoji_tab_recent": @"🕘",
+            @"emoji_tab_people": @"😊",
+            @"emoji_tab_nature": @"🌿",
+            @"emoji_tab_food": @"🍔",
+            @"emoji_tab_activity": @"🏀",
+            @"emoji_tab_travel": @"✈️",
+            @"emoji_tab_objects": @"💡",
+            @"emoji_tab_symbols": @"♾",
+            @"emoji_tab_flags": @"🏳️"
+        };
+    });
+    NSString *symbol = map[key];
+    return symbol.length ? symbol : @"●";
+}
+
+- (void)refreshLocalizedTitles {
+    NSString *lang = [KBLocalizationManager shared].currentLanguageCode ?: KBLanguageCodeEnglish;
+    for (KBEmojiCategory *cat in self.categoriesInternal) {
+        [cat refreshDisplayTitleForLanguage:lang];
+    }
+}
+
+- (void)onLocalizationChanged:(__unused NSNotification *)note {
+    [self refreshLocalizedTitles];
+    [[NSNotificationCenter defaultCenter] postNotificationName:KBEmojiRecentsDidChangeNotification object:nil];
+}
+
+- (void)recordEmojiSelection:(NSString *)emoji {
+    if (emoji.length == 0) return;
+    [self reloadIfNeeded];
+    if (!self.recentValues) {
+        self.recentValues = [NSMutableOrderedSet orderedSet];
+    }
+    [self.recentValues removeObject:emoji];
+    [self.recentValues insertObject:emoji atIndex:0];
+    while (self.recentValues.count > kKBEmojiRecentsLimit) {
+        [self.recentValues removeObjectAtIndex:self.recentValues.count - 1];
+    }
+    [self saveRecentsToStore];
+    [self rebuildRecentsCategory];
+    [[NSNotificationCenter defaultCenter] postNotificationName:KBEmojiRecentsDidChangeNotification object:nil];
+}
+
+- (void)loadRecentsFromStore {
+    NSUserDefaults *defs = [[NSUserDefaults alloc] initWithSuiteName:AppGroup];
+    if (!defs) { defs = NSUserDefaults.standardUserDefaults; }
+    NSArray *stored = [defs objectForKey:kKBEmojiRecentsStoreKey];
+    NSMutableOrderedSet *set = [NSMutableOrderedSet orderedSet];
+    if ([stored isKindOfClass:NSArray.class]) {
+        for (id obj in stored) {
+            if (![obj isKindOfClass:NSString.class]) continue;
+            NSString *str = (NSString *)obj;
+            if (str.length == 0) continue;
+            [set addObject:str];
+            if (set.count >= kKBEmojiRecentsLimit) break;
+        }
+    }
+    self.recentValues = set;
+}
+
+- (void)saveRecentsToStore {
+    if (!self.recentValues) return;
+    NSArray *arr = self.recentValues.array;
+    NSUserDefaults *defs = [[NSUserDefaults alloc] initWithSuiteName:AppGroup];
+    if (!defs) { defs = NSUserDefaults.standardUserDefaults; }
+    [defs setObject:arr forKey:kKBEmojiRecentsStoreKey];
+    [defs synchronize];
+}
+
+- (void)rebuildRecentsCategory {
+    KBEmojiCategory *recent = [self categoryForIdentifier:kKBEmojiRecentsCategoryId];
+    if (!recent) return;
+    NSArray<NSString *> *values = self.recentValues.array ?: @[];
+    NSMutableArray<KBEmojiItem *> *items = [NSMutableArray arrayWithCapacity:values.count];
+    for (NSString *value in values) {
+        KBEmojiItem *item = self.itemLookup[value];
+        if (!item) {
+            item = [[KBEmojiItem alloc] initWithValue:value name:@""];
+        }
+        [items addObject:item];
+    }
+    recent.items = items.copy;
+}
+
+- (KBEmojiCategory *)categoryForIdentifier:(NSString *)identifier {
+    if (identifier.length == 0) return nil;
+    for (KBEmojiCategory *cat in self.categoriesInternal) {
+        if ([cat.identifier isEqualToString:identifier]) {
+            return cat;
+        }
+    }
+    return nil;
+}
+
+@end

CustomKeyboard/Model/KBKey.h

@@ -16,17 +16,35 @@ typedef NS_ENUM(NSInteger, KBKeyType) {
     KBKeyTypeSpace,           // 空格
     KBKeyTypeReturn,          // 回车/发送
     KBKeyTypeGlobe,           // 系统地球键
-    KBKeyTypeCustom,          // 自定义功能占位
+    KBKeyTypeCustom,          // 自定义功能占位（如 AI/Emoji）
     KBKeyTypeSymbolsToggle    // 数字面板内的“#+=/123”切换
 };
 
+FOUNDATION_EXPORT NSString * const KBKeyIdentifierEmojiPanel;
+
+/// 字母键的大小写变体标记（非字母键使用 KBKeyCaseVariantNone）
+typedef NS_ENUM(NSInteger, KBKeyCaseVariant) {
+    KBKeyCaseVariantNone  = 0,
+    KBKeyCaseVariantLower = 1,
+    KBKeyCaseVariantUpper = 2,
+};
+
 @interface KBKey : NSObject
 
 @property (nonatomic, assign) KBKeyType type;
 @property (nonatomic, copy) NSString *title;      // 显示标题
 @property (nonatomic, copy) NSString *output;     // 字符键插入的文本
+/// 逻辑按键标识，用于皮肤映射（如 @"letter_q" @"space" @"backspace"）
+@property (nonatomic, copy, nullable) NSString *identifier;
+/// 字母键的大小写变体（便于皮肤为大小写准备不同图）
+@property (nonatomic, assign) KBKeyCaseVariant caseVariant;
 
 + (instancetype)keyWithTitle:(NSString *)title output:(NSString *)output;
 + (instancetype)keyWithTitle:(NSString *)title type:(KBKeyType)type;
+/// 通用构造方法：用于指定 identifier，便于皮肤做精细控制
++ (instancetype)keyWithIdentifier:(nullable NSString *)identifier
+                            title:(NSString *)title
+                           output:(NSString *)output
+                             type:(KBKeyType)type;
 
 @end

CustomKeyboard/Model/KBKey.m

@@ -5,6 +5,8 @@
 
 #import "KBKey.h"
 
+NSString * const KBKeyIdentifierEmojiPanel = @"emoji_panel";
+
 @implementation KBKey
 
 + (instancetype)keyWithTitle:(NSString *)title output:(NSString *)output {
@@ -12,6 +14,7 @@
     k.type = KBKeyTypeCharacter;
     k.title = title ?: @"";
     k.output = output ?: title ?: @"";
+    k.caseVariant = KBKeyCaseVariantNone;
     return k;
 }
 
@@ -20,8 +23,21 @@
     k.type = type;
     k.title = title ?: @"";
     k.output = @"";
+    k.caseVariant = KBKeyCaseVariantNone;
+    return k;
+}
+
++ (instancetype)keyWithIdentifier:(NSString *)identifier
+                            title:(NSString *)title
+                           output:(NSString *)output
+                             type:(KBKeyType)type {
+    KBKey *k = [[KBKey alloc] init];
+    k.type = type;
+    k.identifier = identifier;
+    k.title = title ?: @"";
+    k.output = output ?: @"";
+    k.caseVariant = KBKeyCaseVariantNone;
     return k;
 }
 
 @end
-

CustomKeyboard/Model/KBKeyboardSubscriptionProduct.h

@@ -0,0 +1,43 @@
+//
+//  KBKeyboardSubscriptionProduct.h
+//  CustomKeyboard
+//
+//  订阅商品模型（键盘扩展专用），用于展示与主 App 相同的订阅列表。
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface KBKeyboardSubscriptionProduct : NSObject
+/// 主键 id
+@property (nonatomic, assign) NSInteger identifier;
+/// Apple 商品编号
+@property (nonatomic, copy, nullable) NSString *productId;
+/// 商品名称，如 Monthly
+@property (nonatomic, copy, nullable) NSString *name;
+/// 单位，如 Subscription
+@property (nonatomic, copy, nullable) NSString *unit;
+/// 商品描述
+@property (nonatomic, copy, nullable) NSString *productDescription;
+/// 货币符号
+@property (nonatomic, copy, nullable) NSString *currency;
+/// 现价
+@property (nonatomic, assign) double price;
+/// 原价（如接口未返回，则回退为 price 的 1.25 倍）
+@property (nonatomic, assign) double originPrice;
+/// 有效期数值
+@property (nonatomic, assign) NSInteger durationValue;
+/// 有效期单位
+@property (nonatomic, copy, nullable) NSString *durationUnit;
+
+/// 标题（描述 > name+unit > name > unit）
+- (NSString *)displayTitle;
+/// 当前价格文本
+- (NSString *)priceDisplayText;
+/// 划线价文本
+- (nullable NSString *)strikePriceDisplayText;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Model/KBKeyboardSubscriptionProduct.m

@@ -0,0 +1,55 @@
+//
+//  KBKeyboardSubscriptionProduct.m
+//  CustomKeyboard
+//
+
+#import "KBKeyboardSubscriptionProduct.h"
+#import <MJExtension/MJExtension.h>
+#import "KBLocalizationManager.h"
+
+@implementation KBKeyboardSubscriptionProduct
+
++ (NSDictionary *)mj_replacedKeyFromPropertyName {
+    return @{
+        @"identifier": @"id",
+        @"productDescription": @"description",
+    };
+}
+
+- (NSString *)displayTitle {
+    if (self.productDescription.length > 0) {
+        return self.productDescription;
+    }
+    NSString *name = self.name ?: @"";
+    NSString *unit = self.unit ?: @"";
+    if (name.length && unit.length) {
+        return [NSString stringWithFormat:@"%@ %@", name, unit];
+    }
+    if (name.length) { return name; }
+    if (unit.length) { return unit; }
+    if (self.durationValue > 0 && self.durationUnit.length > 0) {
+        return [NSString stringWithFormat:@"%ld %@", (long)self.durationValue, self.durationUnit];
+    }
+    return KBLocalized(@"Subscription");
+}
+
+- (NSString *)priceDisplayText {
+    double priceValue = self.price;
+    if (priceValue <= 0) {
+        return @"$0.00";
+    }
+    NSString *currency = self.currency.length ? self.currency : @"$";
+    return [NSString stringWithFormat:@"%@%.2f", currency, priceValue];
+}
+
+- (nullable NSString *)strikePriceDisplayText {
+    double rawValue = self.originPrice;
+    if (rawValue <= 0 && self.price > 0) {
+        rawValue = self.price * 1.25;
+    }
+    if (rawValue <= 0) { return nil; }
+    NSString *currency = self.currency.length ? self.currency : @"$";
+    return [NSString stringWithFormat:@"%@%.2f", currency, rawValue];
+}
+
+@end

CustomKeyboard/Network/KBNetworkManager.h

@@ -19,8 +19,15 @@ typedef NS_ERROR_ENUM(KBNetworkErrorDomain, KBNetworkError) {
     KBNetworkErrorDecodeFailed = 4,
 };
 
-/// 简单的 JSON 回调：json 为 NSDictionary/NSArray 或者在非 JSON 情况下返回 NSData
-typedef void(^KBNetworkCompletion)(id _Nullable jsonOrData, NSURLResponse * _Nullable response, NSError * _Nullable error);
+/// JSON 回调（扩展侧目前很少使用 JSON，可按需扩展）
+typedef void(^KBNetworkCompletion)(NSDictionary *_Nullable json,
+                                   NSURLResponse * _Nullable response,
+                                   NSError * _Nullable error);
+
+/// 二进制回调：用于下载 zip、图片等原始数据
+typedef void(^KBNetworkDataCompletion)(NSData *_Nullable data,
+                                       NSURLResponse *_Nullable response,
+                                       NSError *_Nullable error);
 
 @interface KBNetworkManager : NSObject
 
@@ -45,6 +52,12 @@ typedef void(^KBNetworkCompletion)(id _Nullable jsonOrData, NSURLResponse * _Nul
                                 headers:(nullable NSDictionary<NSString *, NSString *> *)headers
                               completion:(KBNetworkCompletion)completion;
 
+/// GET 原始二进制数据（不做 JSON 解析）
+- (nullable NSURLSessionDataTask *)GETData:(NSString *)path
+                                 parameters:(nullable NSDictionary *)parameters
+                                    headers:(nullable NSDictionary<NSString *, NSString *> *)headers
+                                  completion:(KBNetworkDataCompletion)completion;
+
 /// POST JSON 请求，jsonBody 会以 application/json 发送
 - (nullable NSURLSessionDataTask *)POST:(NSString *)path
                                jsonBody:(nullable id)jsonBody
@@ -54,4 +67,3 @@ typedef void(^KBNetworkCompletion)(id _Nullable jsonOrData, NSURLResponse * _Nul
 @end
 
 NS_ASSUME_NONNULL_END
-

CustomKeyboard/Network/KBNetworkManager.m

@@ -6,7 +6,8 @@
 #import "KBNetworkManager.h"
 #import "AFNetworking.h"
 #import "KBAuthManager.h"
-
+//#import "KBUserSessionManager.h"
+#import "KBSignUtils.h"
 NSErrorDomain const KBNetworkErrorDomain = @"com.company.keyboard.network";
 
 @interface KBNetworkManager ()
@@ -26,37 +27,87 @@ NSErrorDomain const KBNetworkErrorDomain = @"com.company.keyboard.network";
     if (self = [super init]) {
         _enabled = NO; // 键盘扩展默认无网络能力，需外部显式开启
         _timeout = 10.0;
-        _defaultHeaders = @{ @"Accept": @"application/json" };
+        // 默认请求头：Accept 任意类型 + 使用项目多语言管理器设置 Accept-Language
+        NSString *lang = [KBLocalizationManager shared].currentLanguageCode ?: KBLanguageCodeEnglish;
+//        NSString *token = [KBUserSessionManager shared].accessToken ? [KBUserSessionManager shared].accessToken : @"";
+        _defaultHeaders = @{
+            @"Accept": @"*/*",
+            @"Accept-Language": lang
+        };
         // 设置基础域名，路径可相对该地址拼接
         _baseURL = [NSURL URLWithString:KB_BASE_URL];
     }
     return self;
 }
 
+- (void)getSignWithParare:(NSDictionary *)bodyParams{
+   
+    NSString *appId    = @"loveKeyboard";
+    NSString *secret   = @"kZJM39HYvhxwbJkG1fmquQRVkQiLAh2H"; // 和服务端保持一致
+    NSString *timestamp = [KBSignUtils currentTimestamp];
+    NSString *nonce     = [KBSignUtils generateNonceWithLength:16];
+    // 1. 组装参与签名的所有参数
+    NSMutableDictionary<NSString *, NSString *> *signParams = [NSMutableDictionary dictionary];
+    signParams[@"appId"]     = appId;
+    signParams[@"timestamp"] = timestamp;
+    signParams[@"nonce"]     = nonce;
+    // 把 body 里的字段也加入签名参数
+    [bodyParams enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
+        if ([obj isKindOfClass:[NSString class]]) {
+            signParams[key] = obj;
+        } else {
+            signParams[key] = [obj description];
+        }
+    }];
+    NSString *sign = [KBSignUtils signWithParams:signParams secret:secret];
+
+    // 将签名相关字段合并进默认请求头
+    NSMutableDictionary<NSString *, NSString *> *headers =
+    [self.defaultHeaders mutableCopy] ?: [NSMutableDictionary dictionary];
+
+    if (sign.length > 0) {
+        headers[@"X-Sign"] = sign;
+    }
+    headers[@"X-App-Id"]    = appId;
+    headers[@"X-Timestamp"] = timestamp;
+    headers[@"X-Nonce"]     = nonce;
+
+    // 触发 copy 语义，确保对外仍是不可变字典
+    self.defaultHeaders = headers;
+}
+
 #pragma mark - Public
 
 - (NSURLSessionDataTask *)GET:(NSString *)path
                      parameters:(NSDictionary *)parameters
                         headers:(NSDictionary<NSString *,NSString *> *)headers
                       completion:(KBNetworkCompletion)completion {
+    [self getSignWithParare:parameters];
     if (![self ensureEnabled:completion]) return nil;
     NSString *urlString = [self buildURLStringWithPath:path];
     if (!urlString) { [self fail:KBNetworkErrorInvalidURL completion:completion]; return nil; }
     // 使用 AFHTTPRequestSerializer 生成带参数与头的请求
     AFHTTPRequestSerializer *serializer = [AFHTTPRequestSerializer serializer];
     serializer.timeoutInterval = self.timeout;
+    NSError *serror = nil;
     NSMutableURLRequest *req = [serializer requestWithMethod:@"GET"
                                                    URLString:urlString
                                                   parameters:parameters
-                                                       error:NULL];
+                                                       error:&serror];
+    if (serror || !req) {
+        if (completion) completion(nil, nil, serror ?: [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorInvalidURL userInfo:@{NSLocalizedDescriptionKey: KBLocalized(@"Invalid URL")}]);
+        return nil;
+    }
     [self applyHeaders:headers toMutableRequest:req contentType:nil];
-    return [self startAFTaskWithRequest:req completion:completion];
+    return [self startAFJSONTaskWithRequest:req completion:completion];
 }
 
 - (NSURLSessionDataTask *)POST:(NSString *)path
                        jsonBody:(id)jsonBody
                         headers:(NSDictionary<NSString *,NSString *> *)headers
                       completion:(KBNetworkCompletion)completion {
+    [self getSignWithParare:jsonBody];
+
     if (![self ensureEnabled:completion]) return nil;
     NSString *urlString = [self buildURLStringWithPath:path];
     if (!urlString) { [self fail:KBNetworkErrorInvalidURL completion:completion]; return nil; }
@@ -70,14 +121,49 @@ NSErrorDomain const KBNetworkErrorDomain = @"com.company.keyboard.network";
                                                        error:&error];
     if (error) { if (completion) completion(nil, nil, error); return nil; }
     [self applyHeaders:headers toMutableRequest:req contentType:nil];
-    return [self startAFTaskWithRequest:req completion:completion];
+    return [self startAFJSONTaskWithRequest:req completion:completion];
+}
+
+- (NSURLSessionDataTask *)GETData:(NSString *)path
+                       parameters:(NSDictionary *)parameters
+                          headers:(NSDictionary<NSString *,NSString *> *)headers
+                        completion:(KBNetworkDataCompletion)completion {
+    [self getSignWithParare:parameters];
+    if (!self.isEnabled) {
+        NSError *e = [NSError errorWithDomain:KBNetworkErrorDomain
+                                         code:KBNetworkErrorDisabled
+                                     userInfo:@{NSLocalizedDescriptionKey: KBLocalized(@"Network disabled (Full Access may be off)")}];
+        if (completion) completion(nil, nil, e);
+        return nil;
+    }
+    NSString *urlString = [self buildURLStringWithPath:path];
+    if (!urlString) {
+        NSError *e = [NSError errorWithDomain:KBNetworkErrorDomain
+                                         code:KBNetworkErrorInvalidURL
+                                     userInfo:@{NSLocalizedDescriptionKey: KBLocalized(@"Invalid URL")}];
+        if (completion) completion(nil, nil, e);
+        return nil;
+    }
+    AFHTTPRequestSerializer *serializer = [AFHTTPRequestSerializer serializer];
+    serializer.timeoutInterval = self.timeout;
+    NSError *serror = nil;
+    NSMutableURLRequest *req = [serializer requestWithMethod:@"GET"
+                                                   URLString:urlString
+                                                  parameters:parameters
+                                                       error:&serror];
+    if (serror || !req) {
+        if (completion) completion(nil, nil, serror ?: [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorInvalidURL userInfo:@{NSLocalizedDescriptionKey: KBLocalized(@"Invalid URL")}]);
+        return nil;
+    }
+    [self applyHeaders:headers toMutableRequest:req contentType:nil];
+    return [self startAFDataTaskWithRequest:req completion:completion];
 }
 
 #pragma mark - Core
 
 - (BOOL)ensureEnabled:(KBNetworkCompletion)completion {
     if (!self.isEnabled) {
-        NSError *e = [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorDisabled userInfo:@{NSLocalizedDescriptionKey: @"网络未启用（可能未开启完全访问）"}];
+        NSError *e = [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorDisabled userInfo:@{NSLocalizedDescriptionKey: KBLocalized(@"Network disabled (Full Access may be off)")}];
         if (completion) completion(nil, nil, e);
         return NO;
     }
@@ -90,7 +176,12 @@ NSErrorDomain const KBNetworkErrorDomain = @"com.company.keyboard.network";
         return path;
     }
     if (self.baseURL) {
-        return [NSURL URLWithString:path relativeToURL:self.baseURL].absoluteURL.absoluteString;
+        // 统一为目录型 base（以 / 结尾），并剥掉 path 的前导 /，避免覆盖 base 路径
+        NSString *base = self.baseURL.absoluteString ?: @"";
+        if (![base hasSuffix:@"/"]) { base = [base stringByAppendingString:@"/"]; }
+        NSURL *dirBase = [NSURL URLWithString:base];
+        NSString *relative = ([path hasPrefix:@"/"]) ? [path substringFromIndex:1] : path;
+        return [NSURL URLWithString:relative relativeToURL:dirBase].absoluteURL.absoluteString;
     }
     return path; // 当无 baseURL 且 path 不是完整 URL 时，让 AFN 处理（可能失败）
 }
@@ -98,6 +189,12 @@ NSErrorDomain const KBNetworkErrorDomain = @"com.company.keyboard.network";
 - (void)applyHeaders:(NSDictionary<NSString *,NSString *> *)headers toMutableRequest:(NSMutableURLRequest *)req contentType:(NSString *)contentType {
     // 合并默认头与局部头，并注入授权头（若可用）。局部覆盖优先。
     NSMutableDictionary *all = [self.defaultHeaders mutableCopy] ?: [NSMutableDictionary new];
+    NSString *token = [KBAuthManager shared].current.accessToken;
+    if (token.length > 0) {
+        all[@"auth-token"] = token;
+    } else {
+        [all removeObjectForKey:@"auth-token"];
+    }
     NSDictionary *auth = [[KBAuthManager shared] authorizationHeader];
     [auth enumerateKeysAndObjectsUsingBlock:^(NSString *key, NSString *obj, BOOL *stop) { all[key] = obj; }];
     if (contentType) all[@"Content-Type"] = contentType;
@@ -105,42 +202,82 @@ NSErrorDomain const KBNetworkErrorDomain = @"com.company.keyboard.network";
     [all enumerateKeysAndObjectsUsingBlock:^(NSString *key, NSString *obj, BOOL *stop) { [req setValue:obj forHTTPHeaderField:key]; }];
 }
 
-- (NSURLSessionDataTask *)startAFTaskWithRequest:(NSURLRequest *)req completion:(KBNetworkCompletion)completion {
+- (NSURLSessionDataTask *)startAFJSONTaskWithRequest:(NSURLRequest *)req completion:(KBNetworkCompletion)completion {
     // 响应先用原始数据返回，再按 Content-Type 解析 JSON（与原实现一致）
     self.manager.responseSerializer = [AFHTTPResponseSerializer serializer];
     NSURLSessionDataTask *task = [self.manager dataTaskWithRequest:req uploadProgress:nil downloadProgress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
-        if (error) { if (completion) completion(nil, response, error); return; }
+        // AFN 默认对非 2xx 的状态码返回 error；这里直接回调上层
+        if (error) {
+            if (completion) completion(nil, response, error);
+            return;
+        }
         NSData *data = (NSData *)responseObject;
         if (![data isKindOfClass:[NSData class]]) {
-            if (completion) completion(nil, response, [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorInvalidResponse userInfo:@{NSLocalizedDescriptionKey:@"无数据"}]);
+            if (completion) completion(nil, response, [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorInvalidResponse userInfo:@{NSLocalizedDescriptionKey:KBLocalized(@"No data")}]);
             return;
         }
         NSString *ct = nil;
         if ([response isKindOfClass:[NSHTTPURLResponse class]]) {
             ct = ((NSHTTPURLResponse *)response).allHeaderFields[@"Content-Type"];
         }
-        BOOL looksJSON = (ct && [ct.lowercaseString containsString:@"application/json"]);
+        // 更宽松的 JSON 判定：Content-Type 里包含 json；或首字符是 { / [
+        BOOL looksJSON = (ct && [[ct lowercaseString] containsString:@"json"]);
+        if (!looksJSON) {
+            // 内容嗅探（不依赖服务端声明）
+            const unsigned char *bytes = data.bytes;
+            NSUInteger len = data.length;
+            for (NSUInteger i = 0; !looksJSON && i < len; i++) {
+                unsigned char c = bytes[i];
+                if (c == ' ' || c == '\n' || c == '\r' || c == '\t') continue;
+                looksJSON = (c == '{' || c == '[');
+                break;
+            }
+        }
         if (looksJSON) {
             NSError *jsonErr = nil;
             id json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&jsonErr];
-            if (jsonErr) { if (completion) completion(nil, response, [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorDecodeFailed userInfo:@{NSLocalizedDescriptionKey:@"JSON解析失败"}]); return; }
-            if (completion) completion(json, response, nil);
+            if (jsonErr) {
+                if (completion) completion(nil, response, [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorDecodeFailed userInfo:@{NSLocalizedDescriptionKey:KBLocalized(@"Failed to parse JSON")}]);
+                return;
+            }
+            if (![json isKindOfClass:[NSDictionary class]]) {
+                if (completion) completion(nil, response, [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorInvalidResponse userInfo:@{NSLocalizedDescriptionKey:KBLocalized(@"Invalid response")}]);
+                return;
+            }
+            if (completion) completion((NSDictionary *)json, response, nil);
         } else {
-            if (completion) completion(data, response, nil);
+            if (completion) completion(nil, response, [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorInvalidResponse userInfo:@{NSLocalizedDescriptionKey:KBLocalized(@"Invalid response")}]);
         }
     }];
     [task resume];
     return task;
 }
 
+- (NSURLSessionDataTask *)startAFDataTaskWithRequest:(NSURLRequest *)req completion:(KBNetworkDataCompletion)completion {
+    self.manager.responseSerializer = [AFHTTPResponseSerializer serializer];
+    NSURLSessionDataTask *task = [self.manager dataTaskWithRequest:req uploadProgress:nil downloadProgress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
+        if (error) {
+            if (completion) completion(nil, response, error);
+            return;
+        }
+        NSData *data = (NSData *)responseObject;
+        if (![data isKindOfClass:[NSData class]]) {
+            if (completion) completion(nil, response, [NSError errorWithDomain:KBNetworkErrorDomain code:KBNetworkErrorInvalidResponse userInfo:@{NSLocalizedDescriptionKey:KBLocalized(@"No data")}]);
+            return;
+        }
+        if (completion) completion(data, response, nil);
+    }];
+    [task resume];
+    return task;
+}
+
 #pragma mark - AFHTTPSessionManager
 
 - (AFHTTPSessionManager *)manager {
     if (!_manager) {
         NSURLSessionConfiguration *cfg = [NSURLSessionConfiguration ephemeralSessionConfiguration];
         cfg.requestCachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
-        cfg.timeoutIntervalForRequest = self.timeout;
-        cfg.timeoutIntervalForResource = MAX(self.timeout, 30.0);
+        // 不在会话级别设置超时，避免与 per-request 的 serializer.timeoutInterval 产生不一致
         if (@available(iOS 11.0, *)) { cfg.waitsForConnectivity = YES; }
         _manager = [[AFHTTPSessionManager alloc] initWithBaseURL:nil sessionConfiguration:cfg];
         // 默认不使用 JSON 解析器，保持原生数据，再按需解析
@@ -152,12 +289,12 @@ NSErrorDomain const KBNetworkErrorDomain = @"com.company.keyboard.network";
 #pragma mark - Private helpers
 
 - (void)fail:(KBNetworkError)code completion:(KBNetworkCompletion)completion {
-    NSString *msg = @"网络错误";
+    NSString *msg = KBLocalized(@"Network error");
     switch (code) {
-        case KBNetworkErrorDisabled: msg = @"网络未启用（可能未开启完全访问）"; break;
-        case KBNetworkErrorInvalidURL: msg = @"无效的URL"; break;
-        case KBNetworkErrorInvalidResponse: msg = @"无效的响应"; break;
-        case KBNetworkErrorDecodeFailed: msg = @"解析失败"; break;
+        case KBNetworkErrorDisabled: msg = KBLocalized(@"Network disabled (Full Access may be off)"); break;
+        case KBNetworkErrorInvalidURL: msg = KBLocalized(@"Invalid URL"); break;
+        case KBNetworkErrorInvalidResponse: msg = KBLocalized(@"Invalid response"); break;
+        case KBNetworkErrorDecodeFailed: msg = KBLocalized(@"Parse failed"); break;
         default: break;
     }
     NSError *e = [NSError errorWithDomain:KBNetworkErrorDomain

CustomKeyboard/Network/KBStreamFetcher.h

@@ -0,0 +1,60 @@
+//
+//  KBStreamFetcher.h
+//  CustomKeyboard
+//
+//  轻量网络流拉取器：支持纯文本分块与 SSE(text/event-stream) 两种形式的“边下边显”。
+//  - 增量解码：按 UTF-8 安全前缀逐步转成字符串，避免半个多字节字符导致阻塞/乱码
+//  - SSE 解析：按 \n\n 切事件，合并 data: 行，移除前缀，仅回传正文
+//  - 兼容后端“/t”作为分段标记：可自动替换为制表符“\t”
+//  - 首段去首个“\t”：若首次正文以一个制表符起始（允许前导空白），可只移除“一个”\t
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef void (^KBStreamFetcherChunkHandler)(NSString *chunk);
+typedef void (^KBStreamFetcherFinishHandler)(NSError *_Nullable error);
+
+@interface KBStreamFetcher : NSObject <NSURLSessionDataDelegate>
+
+// 便利构造
++ (instancetype)fetcherWithURL:(NSURL *)url;
+
+// 必填：请求地址
+@property (nonatomic, strong) NSURL *url;
+
+/// HTTP Method，默认为 GET
+@property (nonatomic, copy, nullable) NSString *httpMethod;
+
+/// 自定义请求体（例如 POST 的 JSON body）
+@property (nonatomic, strong, nullable) NSData *httpBody;
+
+// 可选 Header
+@property (nonatomic, copy, nullable) NSDictionary<NSString *, NSString *> *extraHeaders;
+
+// 配置项（默认值见注释）
+@property (nonatomic, assign) BOOL acceptEventStream;   // 默认 NO；置 YES 时发送 Accept: text/event-stream
+@property (nonatomic, assign) BOOL disableCompression;  // 默认 YES；发送 Accept-Encoding: identity
+@property (nonatomic, assign) BOOL treatSlashTAsTab;    // 默认 YES；将“/t”替换为“\t”
+@property (nonatomic, assign) BOOL trimLeadingTabOnce;  // 默认 YES；首次正文起始的“\t”删一个（忽略前导空白）
+@property (nonatomic, assign) NSTimeInterval requestTimeout; // 默认 30s
+/// UI 刷新节奏：当一次回调内解析出多段（如多条 SSE 事件）时，按该间隔逐条回调（默认 0.10s）。
+@property (nonatomic, assign) NSTimeInterval flushInterval;
+/// 非 SSE 且一次性拿到大段文本时，是否按空格切词逐条回调（模拟“逐词流式”），默认 YES。
+@property (nonatomic, assign) BOOL splitLargeDeltasOnWhitespace;
+
+/// 调试日志：默认 YES。输出起止时刻、首包耗时、各分片内容（截断）等关键信息。
+@property (nonatomic, assign) BOOL loggingEnabled;
+
+// 回调（统一在主线程触发）
+@property (nonatomic, copy, nullable) KBStreamFetcherChunkHandler onChunk;
+@property (nonatomic, copy, nullable) KBStreamFetcherFinishHandler onFinish;
+
+// 控制
+- (void)start;
+- (void)cancel;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Network/KBStreamFetcher.m

@@ -0,0 +1,519 @@
+//
+//  KBStreamFetcher.m
+//
+
+#import "KBStreamFetcher.h"
+#import "KBLocalizationManager.h"
+
+@interface KBStreamFetcher () <NSURLSessionDataDelegate>
+@property (nonatomic, strong) NSURLSession *session;
+@property (nonatomic, strong) NSURLSessionDataTask *task;
+@property (nonatomic, strong) NSMutableData *buffer;           // 网络原始字节累加
+@property (nonatomic, assign) NSStringEncoding textEncoding;   // 推断得到的文本编码（默认 UTF-8）
+@property (nonatomic, assign) BOOL isSSE;                      // 是否为 SSE 响应
+@property (nonatomic, strong) NSMutableString *sseTextBuffer;  // SSE 文本缓冲（已解码）
+@property (nonatomic, assign) NSInteger decodedPrefixBytes;    // 已解码并写入 sseTextBuffer 的字节数（SSE）
+@property (nonatomic, assign) NSInteger deliveredCharCount;    // 已回传的字符数（非 SSE，用于做增量）
+@property (nonatomic, assign) BOOL hasEmitted;                 // 是否已经输出过正文（用于“首段删 1 个 \t”）
+@property (nonatomic, assign) BOOL lastChunkEndedWithTab;      // 上一个已输出分片是否以 "\t" 结尾（用于跨分片去除“\t 后空格”）
+@property (nonatomic, strong) NSMutableArray<NSString *> *pendingQueue; // 待回调的分片（节流输出）
+@property (nonatomic, strong) NSTimer *flushTimer;             // 定时从队列取出一条回调
+@property (nonatomic, strong, nullable) NSError *finishError;  // 结束时的错误（需要等队列清空再回调）
+@property (nonatomic, copy, nullable) NSString *pendingSplitTokenPrefix; // `<SPLIT>` 跨分片残留
+
+// Metrics
+@property (nonatomic, assign) CFAbsoluteTime tStart;           // start() 被调用的时刻
+@property (nonatomic, assign) CFAbsoluteTime tFirstByte;       // 第一次拿到可解码内容
+@property (nonatomic, assign) CFAbsoluteTime tFinish;          // 完成/失败时刻
+@property (nonatomic, assign) NSInteger emittedChunkCount;     // 已输出分片数量
+@end
+
+// 计算数据中以 UTF-8 编码可完整解码的“前缀字节长度”，避免切断多字节字符
+static NSUInteger kb_validUTF8PrefixLen(NSData *data) {
+    const unsigned char *bytes = (const unsigned char *)data.bytes;
+    NSUInteger n = data.length;
+    if (n == 0) return 0;
+    NSInteger i = (NSInteger)n - 1;
+    while (i >= 0 && (bytes[i] & 0xC0) == 0x80) { i--; } // 10xxxxxx 续字节
+    if (i < 0) return 0; // 全是续字节，等下次
+    unsigned char b = bytes[i];
+    NSUInteger expected = 1;
+    if ((b & 0x80) == 0x00) expected = 1;        // 0xxxxxxx
+    else if ((b & 0xE0) == 0xC0) expected = 2;   // 110xxxxx
+    else if ((b & 0xF0) == 0xE0) expected = 3;   // 1110xxxx
+    else if ((b & 0xF8) == 0xF0) expected = 4;   // 11110xxx
+    else return (NSUInteger)i;                   // 非法起始，截到 i 之前
+    NSUInteger remain = n - (NSUInteger)i;
+    return (remain >= expected) ? n : (NSUInteger)i;
+}
+
+static NSString * const kKBStreamSplitToken = @"<SPLIT>";
+
+@implementation KBStreamFetcher
+
++ (instancetype)fetcherWithURL:(NSURL *)url {
+    KBStreamFetcher *f = [[self alloc] init];
+    f.url = url;
+    return f;
+}
+
+- (instancetype)init {
+    if (self = [super init]) {
+        _httpMethod = @"GET";
+        _acceptEventStream = NO;
+        _disableCompression = YES;
+        _treatSlashTAsTab = YES;
+        _trimLeadingTabOnce = YES;
+        _requestTimeout = 30.0;
+        _textEncoding = NSUTF8StringEncoding;
+        _buffer = [NSMutableData data];
+        _sseTextBuffer = [NSMutableString string];
+        _pendingQueue = [NSMutableArray array];
+        _flushInterval = 0.1;
+        _splitLargeDeltasOnWhitespace = YES;
+        _loggingEnabled = YES;
+        _pendingSplitTokenPrefix = nil;
+    }
+    return self;
+}
+
+- (void)start {
+    if (!self.url) return;
+    [self cancel];
+
+    NSURLSessionConfiguration *cfg = [NSURLSessionConfiguration defaultSessionConfiguration];
+    cfg.requestCachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
+    cfg.timeoutIntervalForRequest = self.requestTimeout;
+    cfg.timeoutIntervalForResource = MAX(self.requestTimeout, 60.0);
+
+    self.session = [NSURLSession sessionWithConfiguration:cfg delegate:self delegateQueue:[NSOperationQueue mainQueue]];
+
+    NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:self.url];
+    NSString *method = self.httpMethod.length > 0 ? self.httpMethod : @"GET";
+    req.HTTPMethod = method;
+    if (self.httpBody.length > 0) {
+        req.HTTPBody = self.httpBody;
+    }
+    if (self.disableCompression) { [req setValue:@"identity" forHTTPHeaderField:@"Accept-Encoding"]; }
+    if (self.acceptEventStream) { [req setValue:@"text/event-stream" forHTTPHeaderField:@"Accept"]; }
+    [req setValue:@"no-cache" forHTTPHeaderField:@"Cache-Control"];
+    [req setValue:@"keep-alive" forHTTPHeaderField:@"Connection"];
+    [self.extraHeaders enumerateKeysAndObjectsUsingBlock:^(NSString *k, NSString *v, BOOL *stop){ [req setValue:v forHTTPHeaderField:k]; }];
+
+    // 状态复位
+    [self.buffer setLength:0];
+    [self.sseTextBuffer setString:@""];
+    self.isSSE = NO;
+    self.textEncoding = NSUTF8StringEncoding;
+    self.decodedPrefixBytes = 0;
+    self.deliveredCharCount = 0;
+    self.hasEmitted = NO;
+    self.lastChunkEndedWithTab = NO;
+    [self.pendingQueue removeAllObjects];
+    [self.flushTimer invalidate]; self.flushTimer = nil;
+    self.finishError = nil;
+    self.pendingSplitTokenPrefix = nil;
+
+    self.tStart = CFAbsoluteTimeGetCurrent();
+    self.tFirstByte = 0;
+    self.tFinish = 0;
+    self.emittedChunkCount = 0;
+    if (self.loggingEnabled) {
+        NSLog(@"[KBStream] start url=%@ acceptSSE=%@ disableCompression=%@ flush=%.0fms splitWords=%@",
+              self.url.absoluteString,
+              self.acceptEventStream?@"YES":@"NO",
+              self.disableCompression?@"YES":@"NO",
+              self.flushInterval*1000.0,
+              self.splitLargeDeltasOnWhitespace?@"YES":@"NO");
+    }
+    self.task = [self.session dataTaskWithRequest:req];
+    [self.task resume];
+}
+
+- (void)cancel {
+    [self.task cancel];
+    self.task = nil;
+    [self.session invalidateAndCancel];
+    self.session = nil;
+    [self.buffer setLength:0];
+    [self.sseTextBuffer setString:@""];
+    self.decodedPrefixBytes = 0;
+    self.deliveredCharCount = 0;
+    self.hasEmitted = NO;
+    self.lastChunkEndedWithTab = NO;
+    [self.pendingQueue removeAllObjects];
+    [self.flushTimer invalidate]; self.flushTimer = nil;
+    self.finishError = nil;
+    self.pendingSplitTokenPrefix = nil;
+}
+
+#pragma mark - NSURLSessionDataDelegate
+
+- (void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveResponse:(NSURLResponse *)response completionHandler:(void (^)(NSURLSessionResponseDisposition))completionHandler {
+    self.isSSE = NO;
+    self.textEncoding = NSUTF8StringEncoding;
+    if ([response isKindOfClass:[NSHTTPURLResponse class]]) {
+        NSHTTPURLResponse *r = (NSHTTPURLResponse *)response;
+        NSString *ct = r.allHeaderFields[@"Content-Type"] ?: r.allHeaderFields[@"content-type"];
+        if ([ct isKindOfClass:[NSString class]]) {
+            NSString *lower = [ct lowercaseString];
+            if ([lower containsString:@"text/event-stream"]) self.isSSE = YES;
+            NSRange pos = [lower rangeOfString:@"charset="];
+            if (pos.location != NSNotFound) {
+                NSString *charset = [[lower substringFromIndex:pos.location + pos.length] componentsSeparatedByString:@";"][0];
+                if ([charset containsString:@"utf-8"] || [charset containsString:@"utf8"]) {
+                    self.textEncoding = NSUTF8StringEncoding;
+                } else if ([charset containsString:@"iso-8859-1"] || [charset containsString:@"latin1"]) {
+                    self.textEncoding = NSISOLatin1StringEncoding;
+                }
+            }
+        }
+    }
+    [self.sseTextBuffer setString:@""];
+    self.decodedPrefixBytes = 0;
+    if (completionHandler) completionHandler(NSURLSessionResponseAllow);
+}
+
+- (void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveData:(NSData *)data {
+    if (data.length == 0) return;
+    [self.buffer appendData:data];
+
+    NSUInteger validLen = (self.textEncoding == NSUTF8StringEncoding)
+        ? kb_validUTF8PrefixLen(self.buffer)
+        : self.buffer.length;
+    if (validLen > 0 && self.tFirstByte == 0) {
+        self.tFirstByte = CFAbsoluteTimeGetCurrent();
+        if (self.loggingEnabled) {
+            NSLog(@"[KBStream] first-bytes after %.0fms (encoding=%@, SSE=%@)",
+                  (self.tFirstByte - self.tStart)*1000.0,
+                  (self.textEncoding==NSUTF8StringEncoding?@"UTF-8":@"Other"),
+                  self.isSSE?@"YES":@"NO");
+        }
+    }
+    if (validLen == 0) return; // 末尾可能卡着半个字符
+
+    if (self.isSSE) {
+        if ((NSUInteger)self.decodedPrefixBytes < validLen) {
+            NSRange rng = NSMakeRange((NSUInteger)self.decodedPrefixBytes, validLen - (NSUInteger)self.decodedPrefixBytes);
+            NSString *piece = [[NSString alloc] initWithBytes:(const char *)self.buffer.bytes + rng.location
+                                                       length:rng.length
+                                                     encoding:self.textEncoding];
+            if (piece.length > 0) {
+                [self.sseTextBuffer appendString:piece];
+                self.decodedPrefixBytes = (NSInteger)validLen;
+            }
+        }
+        // 统一换行并按 SSE 事件 \n\n 切开
+        if (self.sseTextBuffer.length > 0) {
+            NSString *normalized = [self.sseTextBuffer stringByReplacingOccurrencesOfString:@"\r\n" withString:@"\n"];
+            [self.sseTextBuffer setString:normalized];
+            while (1) {
+                NSRange sep = [self.sseTextBuffer rangeOfString:@"\n\n"]; // 完整事件
+                if (sep.location == NSNotFound) break;
+                NSString *event = [self.sseTextBuffer substringToIndex:sep.location];
+                [self.sseTextBuffer deleteCharactersInRange:NSMakeRange(0, sep.location + sep.length)];
+
+                // 合并 data: 行为正文
+                NSArray<NSString *> *lines = [event componentsSeparatedByString:@"\n"];
+                NSMutableString *payload = [NSMutableString string];
+                for (NSString *ln in lines) {
+                    if ([ln hasPrefix:@"data:"]) {
+                        NSString *v = [ln substringFromIndex:5];
+                        if (v.length > 0 && [v hasPrefix:@" "]) v = [v substringFromIndex:1];
+                        [payload appendString:v ?: @""];
+                    }
+                }
+        if (payload.length > 0) {
+            if (self.loggingEnabled) {
+                NSLog(@"[KBStream] SSE raw payload: %@", payload);
+            }
+            NSString *llmText = nil;
+            if ([self processLLMChunkPayload:payload output:&llmText]) {
+                if (llmText.length > 0) { [self enqueueChunk:llmText]; }
+            } else {
+                [self enqueueChunk:payload];
+                    }
+                }
+            }
+        }
+        return;
+    }
+
+    // 非 SSE：直接对“可解码前缀”做增量输出
+    NSString *prefix = [[NSString alloc] initWithBytes:self.buffer.bytes length:validLen encoding:self.textEncoding];
+    if (!prefix) return;
+    if (self.deliveredCharCount < (NSInteger)prefix.length) {
+        NSString *delta = [prefix substringFromIndex:self.deliveredCharCount];
+        self.deliveredCharCount = prefix.length;
+        if (self.splitLargeDeltasOnWhitespace && delta.length > 16) {
+            // 按空格切词逐条回调（保留空格，使观感更自然）
+            NSArray<NSString *> *parts = [delta componentsSeparatedByString:@" "];
+            for (NSUInteger i = 0; i < parts.count; i++) {
+                NSString *w = parts[i];
+                if (w.length == 0) { [self enqueueChunk:@" "]; continue; }
+                if (i + 1 < parts.count) {
+                    [self enqueueChunk:[w stringByAppendingString:@" "]];
+                } else {
+                    [self enqueueChunk:w];
+                }
+            }
+        } else {
+            [self enqueueChunk:delta];
+        }
+    }
+}
+
+- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error {
+    if (!error && self.isSSE && self.sseTextBuffer.length > 0) {
+        // 处理最后一条未以 \n\n 结束的事件
+        NSString *normalized = [self.sseTextBuffer stringByReplacingOccurrencesOfString:@"\r\n" withString:@"\n"];
+        NSArray<NSString *> *lines = [normalized componentsSeparatedByString:@"\n"];
+        NSMutableString *payload = [NSMutableString string];
+        for (NSString *ln in lines) {
+            if ([ln hasPrefix:@"data:"]) {
+                NSString *v = [ln substringFromIndex:5];
+                if (v.length > 0 && [v hasPrefix:@" "]) v = [v substringFromIndex:1];
+                [payload appendString:v ?: @""];
+            }
+        }
+        if (payload.length > 0) {
+            if (self.loggingEnabled) {
+                NSLog(@"[KBStream] SSE raw payload: %@", payload);
+            }
+            NSString *delta = nil;
+            if ((NSInteger)payload.length >= self.deliveredCharCount) {
+                delta = [payload substringFromIndex:self.deliveredCharCount];
+            } else {
+                delta = payload;
+            }
+            self.deliveredCharCount = payload.length;
+            if (delta.length > 0) {
+                NSString *llmText = nil;
+                if ([self processLLMChunkPayload:delta output:&llmText]) {
+                    if (llmText.length > 0) { [self emitChunk:llmText]; }
+                } else {
+                    [self emitChunk:delta];
+                }
+            }
+        }
+    }
+    if (self.pendingSplitTokenPrefix.length > 0) {
+        NSString *carry = self.pendingSplitTokenPrefix;
+        self.pendingSplitTokenPrefix = nil;
+        if (carry.length > 0) { [self enqueueChunk:carry]; }
+    }
+
+    self.tFinish = CFAbsoluteTimeGetCurrent();
+    if (self.loggingEnabled) {
+        double t0 = (self.tFirstByte>0? (self.tFirstByte - self.tStart)*1000.0 : -1);
+        double t1 = (self.tFirstByte>0? (self.tFinish - self.tFirstByte)*1000.0 : -1);
+        double tt = (self.tFinish - self.tStart)*1000.0;
+        NSLog(@"[KBStream] finish chunks=%ld firstByte=%.0fms after start, tail=%.0fms, total=%.0fms error=%@",
+              (long)self.emittedChunkCount, t0, t1, tt, error);
+    }
+    // 若队列还有待输出内容，等队列清空再回调 finish
+    if (self.pendingQueue.count > 0) {
+        self.finishError = error;
+        [self startFlushTimerIfNeeded];
+    } else {
+        if (self.onFinish) dispatch_async(dispatch_get_main_queue(), ^{ self.onFinish(error); });
+        [self cancel];
+    }
+}
+
+#pragma mark - Helpers
+
+- (void)emitChunk:(NSString *)rawText {
+    if (rawText.length == 0) return;
+    // 调试：在任何处理之前打印后端“原始文本分片”，便于对照排查
+    if (self.loggingEnabled) {
+//        NSLog(@"[KBStream] RAW chunk#%ld len=%lu text=\"%@\"",
+//              (long)(self.emittedChunkCount + 1),
+//              (unsigned long)rawText.length,
+//              KBPrintableSnippet(rawText, 160));
+    }
+    NSString *text = rawText;
+    // 0) 规范化换行与段起始：去掉位于片段开头的 \r/\n；将 "\n\t"、"\r\n\t"、"\r\t" 归一为 "\t"
+    text = [text stringByReplacingOccurrencesOfString:@"\r\n\t" withString:@"\t"];
+    text = [text stringByReplacingOccurrencesOfString:@"\n\t" withString:@"\t"];
+    text = [text stringByReplacingOccurrencesOfString:@"\r\t" withString:@"\t"];
+    while (text.length > 0) {
+        unichar c0 = [text characterAtIndex:0];
+        if (c0 == '\n' || c0 == '\r') { text = [text substringFromIndex:1]; continue; }
+        break;
+    }
+    // 1) 统一处理 “/t” -> “\t”
+    if (self.treatSlashTAsTab) {
+        text = [text stringByReplacingOccurrencesOfString:@"/t" withString:@"\t"];
+    }
+    // 2) 仅在整体首段：去掉一个起始的 "\t"，以及其后紧邻的一个空格（若存在）
+    if (!self.hasEmitted && self.trimLeadingTabOnce) {
+        if (text.length > 0 && [text characterAtIndex:0] == '\t') {
+            NSUInteger start = 1;
+            if (start < text.length && [text characterAtIndex:start] == ' ') start++;
+            text = [text substringFromIndex:start];
+        }
+    }
+    // 3) 从第二段开始：去掉每个段首的一个空格（即 “\t ” -> “\t”），跨分片也处理
+    if (text.length > 0) {
+        // 跨分片：若上个分片以 \t 结尾，本分片起始的一个或多个空格去掉一个
+        if (self.lastChunkEndedWithTab) {
+            NSUInteger j = 0;
+            while (j < text.length && [text characterAtIndex:j] == ' ') { j++; }
+            if (j > 0) {
+                text = [text substringFromIndex:1]; // 仅去一个空格
+            }
+        }
+        // 同一分片内：将 “\t ” 规范化为 “\t”（仅去一个空格）
+        text = [text stringByReplacingOccurrencesOfString:@"\t " withString:@"\t"];
+    }
+    if (text.length == 0) { self.lastChunkEndedWithTab = NO; return; }
+    self.emittedChunkCount += 1;
+    if (self.loggingEnabled) {
+        NSLog(@"[KBStream] chunk#%ld len=%lu text=\"%@\"",
+              (long)self.emittedChunkCount, (unsigned long)text.length, KBPrintableSnippet(text, 160));
+    }
+    if (self.onChunk) dispatch_async(dispatch_get_main_queue(), ^{ self.onChunk(text); });
+    self.hasEmitted = YES;
+    // 记录末尾是否为分段分隔符 \t（用于跨分片处理）
+    unichar lastc = [text characterAtIndex:text.length - 1];
+    self.lastChunkEndedWithTab = (lastc == '\t');
+}
+
+- (BOOL)processLLMChunkPayload:(NSString *)payload output:(NSString * _Nullable __autoreleasing *)output {
+    if (output) { *output = nil; }
+    if (payload.length == 0) { return NO; }
+    NSData *jsonData = [payload dataUsingEncoding:NSUTF8StringEncoding];
+    if (!jsonData) { return NO; }
+    NSError *jsonError = nil;
+    id obj = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&jsonError];
+    if (jsonError || ![obj isKindOfClass:[NSDictionary class]]) { return NO; }
+    NSString *type = ((NSDictionary *)obj)[@"type"];
+    if (![type isKindOfClass:[NSString class]]) { return NO; }
+    if ([type isEqualToString:@"llm_chunk"]) {
+        id dataValue = ((NSDictionary *)obj)[@"data"];
+        if (![dataValue isKindOfClass:[NSString class]]) {
+            if (output) { *output = @""; }
+            return YES;
+        }
+        NSString *normalized = [self normalizedLLMDataString:(NSString *)dataValue];
+        if (output) { *output = normalized; }
+        return YES;
+    }
+    if ([type isEqualToString:@"search_result"]) {
+        NSString *searchText = [self normalizedSearchResultString:((NSDictionary *)obj)[@"data"]];
+        if (output) { *output = searchText ?: @""; }
+        return YES;
+    }
+    if ([type isEqualToString:@"done"]) {
+        if (output) { *output = @""; }
+        return YES;
+    }
+    return NO;
+}
+
+- (NSString *)normalizedLLMDataString:(NSString *)dataString {
+    NSString *combined = dataString ?: @"";
+    if (self.pendingSplitTokenPrefix.length > 0) {
+        combined = [self.pendingSplitTokenPrefix stringByAppendingString:combined];
+        self.pendingSplitTokenPrefix = nil;
+    }
+    if (combined.length == 0) { return @""; }
+    NSString *result = [combined stringByReplacingOccurrencesOfString:kKBStreamSplitToken withString:@"\t"];
+    NSString *suffix = [self pendingSplitPrefixSuffixForString:result];
+    if (suffix.length > 0) {
+        self.pendingSplitTokenPrefix = suffix;
+        result = [result substringToIndex:result.length - suffix.length];
+    }
+    return result;
+}
+
+- (NSString *)normalizedSearchResultString:(id)dataValue {
+    if (![dataValue isKindOfClass:[NSArray class]]) { return @""; }
+    NSArray *list = (NSArray *)dataValue;
+    NSMutableArray<NSString *> *segments = [NSMutableArray array];
+    for (NSUInteger i = 0; i < list.count; i++) {
+        id item = list[i];
+        NSString *payload = nil;
+        if ([item isKindOfClass:[NSDictionary class]]) {
+            id val = ((NSDictionary *)item)[@"payload"];
+            if ([val isKindOfClass:[NSString class]]) {
+                payload = (NSString *)val;
+            }
+        } else if ([item isKindOfClass:[NSString class]]) {
+            payload = (NSString *)item;
+        }
+        payload = [payload stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
+        if (payload.length == 0) { continue; }
+        NSString *line = [NSString stringWithFormat:@"%lu. %@", (unsigned long)(segments.count + 1), payload];
+        [segments addObject:line];
+    }
+    if (segments.count == 0) { return @""; }
+    NSString *title = KBLocalized(@"Search result");
+    NSMutableString *text = [NSMutableString string];
+    [text appendString:@"\t"];
+    [text appendFormat:@"%@:", title.length > 0 ? title : @"Search result"];
+    for (NSString *line in segments) {
+        [text appendString:@"\t"];
+        [text appendString:line];
+    }
+    return text;
+}
+
+- (NSString *)pendingSplitPrefixSuffixForString:(NSString *)text {
+    if (text.length == 0) { return @""; }
+    NSUInteger tokenLen = kKBStreamSplitToken.length;
+    if (tokenLen <= 1) { return @""; }
+    NSUInteger maxLen = MIN(tokenLen - 1, text.length);
+    for (NSUInteger len = maxLen; len > 0; len--) {
+        NSString *suffix = [text substringFromIndex:text.length - len];
+        NSString *prefix = [kKBStreamSplitToken substringToIndex:len];
+        if ([suffix isEqualToString:prefix]) {
+            return suffix;
+        }
+    }
+    return @"";
+}
+
+#pragma mark - Queue/Flush
+
+- (void)enqueueChunk:(NSString *)s {
+    if (s.length == 0) return;
+    [self.pendingQueue addObject:s];
+    [self startFlushTimerIfNeeded];
+}
+
+- (void)startFlushTimerIfNeeded {
+    if (self.flushTimer) return;
+    __weak typeof(self) weakSelf = self;
+    self.flushTimer = [NSTimer scheduledTimerWithTimeInterval:MAX(0.01, self.flushInterval)
+                                                     repeats:YES
+                                                       block:^(NSTimer * _Nonnull t) {
+        __strong typeof(weakSelf) self = weakSelf; if (!self) { [t invalidate]; return; }
+        if (self.pendingQueue.count == 0) {
+            [t invalidate]; self.flushTimer = nil;
+            if (self.finishError || self.finishError == nil) {
+                NSError *err = self.finishError; self.finishError = nil;
+                if (self.onFinish) dispatch_async(dispatch_get_main_queue(), ^{ self.onFinish(err); });
+                [self cancel];
+            }
+            return;
+        }
+        NSString *first = self.pendingQueue.firstObject;
+        [self.pendingQueue removeObjectAtIndex:0];
+        [self emitChunk:first];
+    }];
+}
+
+#pragma mark - Logging helpers
+
+static NSString *KBPrintableSnippet(NSString *s, NSUInteger maxLen) {
+    if (!s) return @"";
+    NSString *x = [s stringByReplacingOccurrencesOfString:@"\n" withString:@"\\n"];
+    if (x.length > maxLen) {
+        x = [[x substringToIndex:maxLen] stringByAppendingString:@"…"];
+    }
+    return x;
+}
+
+@end

CustomKeyboard/Network/NetworkStreamHandler.h

@@ -0,0 +1,71 @@
+//
+//  NetworkStreamHandler.h
+//  CustomKeyboard
+//
+//  Created by Mac on 2025/11/12.
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef NS_ENUM(NSUInteger, NetworkStreamState) {
+    NetworkStreamStateIdle,
+    NetworkStreamStateConnecting,
+    NetworkStreamStateReceiving,
+    NetworkStreamStateCompleted,
+    NetworkStreamStateError
+};
+
+@class NetworkStreamHandler;
+
+@protocol NetworkStreamDelegate <NSObject>
+
+@optional
+// 接收到数据块
+- (void)networkStream:(NetworkStreamHandler *)stream didReceiveData:(NSData *)data;
+// 接收到文本数据（如果是文本内容）
+- (void)networkStream:(NetworkStreamHandler *)stream didReceiveText:(NSString *)text;
+// 进度更新
+- (void)networkStream:(NetworkStreamHandler *)stream downloadProgress:(float)progress;
+// 状态改变
+- (void)networkStream:(NetworkStreamHandler *)stream stateChanged:(NetworkStreamState)state;
+// 请求完成
+- (void)networkStream:(NetworkStreamHandler *)stream didCompleteWithError:(NSError * _Nullable)error;
+
+@end
+
+typedef void (^NetworkStreamProgressBlock)(float progress);
+typedef void (^NetworkStreamDataBlock)(NSData *data);
+typedef void (^NetworkStreamTextBlock)(NSString *text);
+typedef void (^NetworkStreamCompletionBlock)(NSError * _Nullable error);
+
+@interface NetworkStreamHandler : NSObject <NSURLSessionDataDelegate>
+
+@property (nonatomic, weak) id<NetworkStreamDelegate> delegate;
+@property (nonatomic, assign, readonly) NetworkStreamState state;
+@property (nonatomic, strong, readonly) NSURLResponse *response;
+@property (nonatomic, assign, readonly) long long totalBytesReceived;
+
+// 初始化方法
+- (instancetype)initWithURL:(NSURL *)url;
+- (instancetype)initWithRequest:(NSURLRequest *)request;
+
+// 开始请求（使用代理回调）
+- (void)startRequest;
+
+// 开始请求（使用 Block 回调）
+- (void)startRequestWithProgress:(NetworkStreamProgressBlock _Nullable)progress
+                        onData:(NetworkStreamDataBlock _Nullable)dataBlock
+                        onText:(NetworkStreamTextBlock _Nullable)textBlock
+                     completion:(NetworkStreamCompletionBlock _Nullable)completion;
+
+// 取消请求
+- (void)cancelRequest;
+
+// 构建默认请求（包含常见的请求头）
++ (NSURLRequest *)createDefaultRequestWithURL:(NSURL *)url method:(NSString *)method;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Network/NetworkStreamHandler.m

@@ -0,0 +1,253 @@
+//
+//  NetworkStreamHandler.m
+//  CustomKeyboard
+//
+//  Created by Mac on 2025/11/12.
+//
+
+#import "NetworkStreamHandler.h"
+
+@interface NetworkStreamHandler ()
+
+@property (nonatomic, strong) NSURLSession *session;
+@property (nonatomic, strong) NSURLSessionDataTask *dataTask;
+@property (nonatomic, strong) NSURLRequest *request;
+@property (nonatomic, strong) NSMutableData *receivedData;
+@property (nonatomic, assign) long long expectedContentLength;
+@property (nonatomic, assign) NetworkStreamState state;
+@property (nonatomic, strong) NSURLResponse *response;
+
+// Block 回调
+@property (nonatomic, copy) NetworkStreamProgressBlock progressBlock;
+@property (nonatomic, copy) NetworkStreamDataBlock dataBlock;
+@property (nonatomic, copy) NetworkStreamTextBlock textBlock;
+@property (nonatomic, copy) NetworkStreamCompletionBlock completionBlock;
+
+@end
+
+@implementation NetworkStreamHandler
+
+- (instancetype)initWithURL:(NSURL *)url {
+    NSURLRequest *request = [NetworkStreamHandler createDefaultRequestWithURL:url method:@"GET"];
+    return [self initWithRequest:request];
+}
+
+- (instancetype)initWithRequest:(NSURLRequest *)request {
+    self = [super init];
+    if (self) {
+        _request = request;
+        _receivedData = [NSMutableData data];
+        _state = NetworkStreamStateIdle;
+        _totalBytesReceived = 0;
+        
+        // 创建 URLSession 配置
+        NSURLSessionConfiguration *config = [NSURLSessionConfiguration defaultSessionConfiguration];
+        config.timeoutIntervalForRequest = 30.0;
+        config.timeoutIntervalForResource = 300.0;
+        config.requestCachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
+        
+        // 创建 URLSession
+        _session = [NSURLSession sessionWithConfiguration:config
+                                                 delegate:self
+                                            delegateQueue:[NSOperationQueue mainQueue]];
+    }
+    return self;
+}
+
+- (void)dealloc {
+    [self cancelRequest];
+}
+
+#pragma mark - Public Methods
+
+- (void)startRequest {
+    if (self.state != NetworkStreamStateIdle) {
+        NSLog(@"Request already in progress");
+        return;
+    }
+    
+    [self updateState:NetworkStreamStateConnecting];
+    self.dataTask = [self.session dataTaskWithRequest:self.request];
+    [self.dataTask resume];
+}
+
+- (void)startRequestWithProgress:(NetworkStreamProgressBlock)progress
+                         onData:(NetworkStreamDataBlock)dataBlock
+                         onText:(NetworkStreamTextBlock)textBlock
+                      completion:(NetworkStreamCompletionBlock)completion {
+    
+    self.progressBlock = progress;
+    self.dataBlock = dataBlock;
+    self.textBlock = textBlock;
+    self.completionBlock = completion;
+    
+    [self startRequest];
+}
+
+- (void)cancelRequest {
+    if (self.dataTask) {
+        [self.dataTask cancel];
+        self.dataTask = nil;
+    }
+    [self updateState:NetworkStreamStateIdle];
+}
+
++ (NSURLRequest *)createDefaultRequestWithURL:(NSURL *)url method:(NSString *)method {
+    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
+    request.HTTPMethod = method;
+    request.timeoutInterval = 30.0;
+    
+    // 设置常见的请求头（根据您的截图）
+    [request setValue:@"text/html, application/xhtml+xml, application/xml; q=0.9, image/avif, image/webp, image/apng, */*; q=0.8, application/signed-exchange; v=b3; q=0.7" forHTTPHeaderField:@"Accept"];
+    [request setValue:@"gzip, deflate" forHTTPHeaderField:@"Accept-Encoding"];
+    [request setValue:@"zh-CN, zh; q=0.9, ko; q=0.8, ja; q=0.7" forHTTPHeaderField:@"Accept-Language"];
+    [request setValue:@"keep-alive" forHTTPHeaderField:@"Connection"];
+    [request setValue:@"1" forHTTPHeaderField:@"Upgrade-Insecure-Requests"];
+    
+    // 用户代理（可选）
+    NSString *userAgent = @"Mozilla/5.0 (iPhone; CPU iPhone OS 15_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.0 Mobile/15E148 Safari/604.1";
+    [request setValue:userAgent forHTTPHeaderField:@"User-Agent"];
+    
+    return [request copy];
+}
+
+#pragma mark - Private Methods
+
+- (void)updateState:(NetworkStreamState)newState {
+    if (_state != newState) {
+        _state = newState;
+        
+        // 通知代理状态改变
+        if ([self.delegate respondsToSelector:@selector(networkStream:stateChanged:)]) {
+            [self.delegate networkStream:self stateChanged:newState];
+        }
+    }
+}
+
+- (void)notifyProgress:(float)progress {
+    if (self.progressBlock) {
+        self.progressBlock(progress);
+    }
+    
+    if ([self.delegate respondsToSelector:@selector(networkStream:downloadProgress:)]) {
+        [self.delegate networkStream:self downloadProgress:progress];
+    }
+}
+
+- (void)notifyReceivedData:(NSData *)data {
+    if (self.dataBlock) {
+        self.dataBlock(data);
+    }
+    
+    if ([self.delegate respondsToSelector:@selector(networkStream:didReceiveData:)]) {
+        [self.delegate networkStream:self didReceiveData:data];
+    }
+    
+    // 如果是文本数据，尝试转换为字符串
+    if (self.textBlock || [self.delegate respondsToSelector:@selector(networkStream:didReceiveText:)]) {
+        NSString *text = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+        if (text) {
+            if (self.textBlock) {
+                self.textBlock(text);
+            }
+            if ([self.delegate respondsToSelector:@selector(networkStream:didReceiveText:)]) {
+                [self.delegate networkStream:self didReceiveText:text];
+            }
+        }
+    }
+}
+
+- (void)notifyCompletionWithError:(NSError * _Nullable)error {
+    if (self.completionBlock) {
+        self.completionBlock(error);
+    }
+    
+    if ([self.delegate respondsToSelector:@selector(networkStream:didCompleteWithError:)]) {
+        [self.delegate networkStream:self didCompleteWithError:error];
+    }
+}
+
+#pragma mark - NSURLSessionDataDelegate
+
+- (void)URLSession:(NSURLSession *)session
+          dataTask:(NSURLSessionDataTask *)dataTask
+didReceiveResponse:(NSURLResponse *)response
+ completionHandler:(void (^)(NSURLSessionResponseDisposition))completionHandler {
+    
+    self.response = response;
+    self.expectedContentLength = response.expectedContentLength;
+    _totalBytesReceived = 0;
+    [self.receivedData setLength:0];
+    
+    [self updateState:NetworkStreamStateReceiving];
+    
+    // 检查响应头，处理 CORS 等
+    if ([response isKindOfClass:[NSHTTPURLResponse class]]) {
+        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
+        NSLog(@"Response headers: %@", httpResponse.allHeaderFields);
+        
+        // 可以在这里检查 CORS 头等信息
+        NSString *allowOrigin = httpResponse.allHeaderFields[@"Access-Control-Allow-Origin"];
+        if (allowOrigin) {
+            NSLog(@"CORS Allow Origin: %@", allowOrigin);
+        }
+    }
+    
+    completionHandler(NSURLSessionResponseAllow);
+}
+
+- (void)URLSession:(NSURLSession *)session
+          dataTask:(NSURLSessionDataTask *)dataTask
+    didReceiveData:(NSData *)data {
+    
+    _totalBytesReceived += data.length;
+    [self.receivedData appendData:data];
+    
+    // 通知接收到数据块
+    [self notifyReceivedData:data];
+    
+    // 计算并通知进度
+    if (self.expectedContentLength != NSURLResponseUnknownLength) {
+        float progress = (float)self.totalBytesReceived / (float)self.expectedContentLength;
+        [self notifyProgress:progress];
+    } else {
+        // 对于 chunked 传输，可能没有确切的内容长度
+        [self notifyProgress:-1]; // 使用 -1 表示未知进度
+    }
+}
+
+- (void)URLSession:(NSURLSession *)session
+              task:(NSURLSessionTask *)task
+didCompleteWithError:(NSError *)error {
+    
+    if (error) {
+        [self updateState:NetworkStreamStateError];
+        NSLog(@"Request failed with error: %@", error);
+    } else {
+        [self updateState:NetworkStreamStateCompleted];
+        NSLog(@"Request completed successfully. Total bytes: %lld", self.totalBytesReceived);
+    }
+    
+    [self notifyCompletionWithError:error];
+    
+    // 清理
+    [self.session finishTasksAndInvalidate];
+    self.dataTask = nil;
+}
+
+#pragma mark - URL Session Delegate (处理 SSL/认证)
+
+- (void)URLSession:(NSURLSession *)session
+didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge
+ completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition, NSURLCredential * _Nullable))completionHandler {
+    
+    // 处理 SSL 认证挑战
+    if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {
+        NSURLCredential *credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];
+        completionHandler(NSURLSessionAuthChallengeUseCredential, credential);
+    } else {
+        completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
+    }
+}
+
+@end

CustomKeyboard/Network/WJXEventSource/WJXEventSource.h

@@ -0,0 +1,70 @@
+//
+//  WJXEventSource.h
+//  WJXEventSource
+//
+//  Created by JiuxingWang on 2025/2/9.
+//
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+#ifdef __cplusplus
+#define WJX_EXTERN        extern "C" __attribute__((visibility ("default")))
+#else
+#define WJX_EXTERN        extern __attribute__((visibility ("default")))
+#endif
+
+/// 消息事件
+typedef NSString *WJXEventName NS_TYPED_EXTENSIBLE_ENUM;
+
+/// 消息事件
+WJX_EXTERN WJXEventName const WJXEventNameMessage;
+
+/// readyState 变化事件
+WJX_EXTERN WJXEventName const WJXEventNameReadyState;
+
+/// open 事件
+WJX_EXTERN WJXEventName const WJXEventNameOpen;
+
+/// error 事件
+WJX_EXTERN WJXEventName const WJXEventNameError;
+
+typedef NS_ENUM(NSUInteger, WJXEventState) {
+    WJXEventStateConnecting = 0,
+    WJXEventStateOpen,
+    WJXEventStateClosed,
+};
+
+@interface WJXEvent : NSObject
+
+@property (nonatomic, strong, nullable) id eventId;
+
+@property (nonatomic, copy, nullable) NSString *event;
+@property (nonatomic, copy, nullable) NSString *data;
+
+@property (nonatomic, assign) WJXEventState readyState;
+@property (nonatomic, strong, nullable) NSError *error;
+
+- (instancetype)initWithReadyState:(WJXEventState)readyState;
+
+@end
+
+typedef void(^WJXEventSourceEventHandler)(WJXEvent *event);
+
+@interface WJXEventSource : NSObject
+
+@property (nonatomic, assign) BOOL ignoreRetryAction;
+
+- (instancetype)initWithRquest:(NSURLRequest *)request;
+
+- (void)addListener:(WJXEventSourceEventHandler)listener
+           forEvent:(WJXEventName)eventName
+              queue:(nullable NSOperationQueue *)queue;
+
+- (void)open;
+- (void)close;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Network/WJXEventSource/WJXEventSource.m

@@ -0,0 +1,309 @@
+//
+//  WJXEventSource.m
+//  WJXEventSource
+//
+//  Created by JiuxingWang on 2025/2/9.
+//
+
+#import "WJXEventSource.h"
+
+/// 消息事件
+WJXEventName const WJXEventNameMessage = @"message";
+
+/// readyState 变化事件
+WJXEventName const WJXEventNameReadyState = @"readyState";
+
+/// open 事件
+WJXEventName const WJXEventNameOpen = @"open";
+
+/// error 事件
+WJXEventName const WJXEventNameError = @"error";
+
+#pragma mark -
+#pragma mark WJXEvent
+
+@implementation WJXEvent
+
+- (instancetype)initWithReadyState:(WJXEventState)readyState;
+{
+    if (self = [super init]) {
+        self.readyState = readyState;
+    }
+    return self;
+}
+
+- (NSString *)description
+{
+    NSString *state = nil;
+    switch (_readyState) {
+        case WJXEventStateConnecting: {
+            state = @"CONNECTING";
+        } break;
+            
+        case WJXEventStateOpen: {
+            state = @"OPEN";
+        } break;
+            
+        case WJXEventStateClosed: {
+            state = @"CLOSED";
+        } break;
+    }
+    
+    return [NSString stringWithFormat:@"<%@: readyState: %@, id: %@; event: %@; data: %@>", [self class], state, _eventId, _event, _data];
+}
+
+@end
+
+
+#pragma mark -
+#pragma mark WJXEventHandler
+
+@interface WJXEventHandler : NSObject
+
+@property (nonatomic, copy, nonnull) WJXEventSourceEventHandler handler;
+@property (nonatomic, strong, nullable) NSOperationQueue *queue;
+
+@end
+
+@implementation WJXEventHandler
+
+- (instancetype)initWithHandler:(WJXEventSourceEventHandler)handler queue:(NSOperationQueue *)queue
+{
+    if (self = [super init]) {
+        self.handler = handler;
+        self.queue = queue;
+    }
+    return self;
+}
+
+@end
+
+
+#pragma mark -
+#pragma mark WJXEventSource
+
+@interface WJXEventSource () <NSURLSessionDataDelegate>
+
+@property (nonatomic, strong) NSMutableURLRequest *request;
+@property (nonatomic, strong) NSMutableDictionary<WJXEventName, NSMutableArray<WJXEventHandler *> *> *listeners;
+
+@property (nonatomic, strong) NSURLSession *session;
+@property (nonatomic, strong) NSURLSessionDataTask *dataTask;
+@property (nonatomic, copy) NSString *lastEventId;
+@property (nonatomic, assign) NSTimeInterval retryInterval;
+
+@property (nonatomic, assign) BOOL closedByUser;
+@property (nonatomic, strong) NSMutableData *buffer;
+
+@end
+
+@implementation WJXEventSource
+
+- (instancetype)initWithRquest:(NSURLRequest *)request;
+{
+    if (self = [super init]) {
+        self.request = [request mutableCopy];
+        self.listeners = [NSMutableDictionary dictionary];
+        self.session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration ephemeralSessionConfiguration] delegate:self delegateQueue:NSOperationQueue.mainQueue];
+        self.buffer = [NSMutableData data];
+    }
+    return self;
+}
+
+- (void)dealloc
+{
+    [_session finishTasksAndInvalidate];
+}
+
+- (void)addListener:(WJXEventSourceEventHandler)listener
+           forEvent:(WJXEventName)eventName
+              queue:(nullable NSOperationQueue *)queue;
+{
+    if (nil == listener) {
+        return;
+    }
+    
+    NSMutableArray *listeners = self.listeners[eventName];
+    if (nil == listeners) {
+        self.listeners[eventName] = listeners = [NSMutableArray array];
+    }
+    [listeners addObject:[[WJXEventHandler alloc] initWithHandler:listener queue:queue]];
+}
+
+- (void)open;
+{
+    if (_lastEventId.length) {
+        [_request setValue:_lastEventId forHTTPHeaderField:@"Last-Event-ID"];
+    }
+    
+    self.dataTask = [_session dataTaskWithRequest:_request];
+    [_dataTask resume];
+    
+    WJXEvent *event = [[WJXEvent alloc] initWithReadyState:WJXEventStateConnecting];
+    [self _dispatchEvent:event forName:WJXEventNameReadyState];
+}
+
+- (void)close;
+{
+    self.closedByUser = YES;
+    [_dataTask cancel];
+    [_session finishTasksAndInvalidate];
+    _buffer = [NSMutableData data];
+}
+
+
+#pragma mark -
+#pragma mark NSURLSessionDataDelegate
+
+- (void)URLSession:(NSURLSession *)session
+          dataTask:(NSURLSessionDataTask *)dataTask
+didReceiveResponse:(NSURLResponse *)response
+ completionHandler:(void (^)(NSURLSessionResponseDisposition disposition))completionHandler;
+{
+    NSHTTPURLResponse *HTTPResponse = (NSHTTPURLResponse *)response;
+    if (200 == HTTPResponse.statusCode) {
+        WJXEvent *event = [[WJXEvent alloc] initWithReadyState:WJXEventStateOpen];
+        [self _dispatchEvent:event forName:WJXEventNameReadyState];
+        [self _dispatchEvent:event forName:WJXEventNameOpen];
+    }
+    
+    if (nil != completionHandler) {
+        completionHandler(NSURLSessionResponseAllow);
+    }
+}
+
+- (void)URLSession:(NSURLSession *)session
+          dataTask:(NSURLSessionDataTask *)dataTask
+    didReceiveData:(NSData *)data;
+{
+    [_buffer appendData:data];
+    [self _processBuffer];
+}
+
+- (void)URLSession:(NSURLSession *)session
+          task:(NSURLSessionTask *)task
+didCompleteWithError:(nullable NSError *)error;
+{
+    if (_closedByUser) {
+        _buffer = [NSMutableData data];
+        return;
+    }
+
+    [self _dispatchPlainBufferIfNeeded];
+    
+    WJXEvent *event = [[WJXEvent alloc] initWithReadyState:WJXEventStateClosed];
+    if (nil == (event.error = error)) {
+        event.error = [NSError errorWithDomain:@"WJXEventSource" code:event.readyState userInfo:@{
+            NSLocalizedDescriptionKey: @"Connection with the event source was closed without error",
+        }];
+    }
+    [self _dispatchEvent:event forName:WJXEventNameReadyState];
+    
+    if (nil != error) {
+        [self _dispatchEvent:event forName:WJXEventNameError];
+        if (!_ignoreRetryAction) {
+            [self performSelector:@selector(open) withObject:nil afterDelay:_retryInterval];
+        }
+    }
+}
+
+
+#pragma mark -
+#pragma mark Private
+
+- (void)_processBuffer
+{
+    NSData *separatorLFLFData = [NSData dataWithBytes:"\n\n" length:2];
+    
+    NSRange range = [_buffer rangeOfData:separatorLFLFData options:kNilOptions range:(NSRange) {
+        .length = _buffer.length
+    }];
+    
+    while (NSNotFound != range.location) {
+        // Extract event data
+        NSData *eventData = [_buffer subdataWithRange:(NSRange) {
+            .length = range.location
+        }];
+        [_buffer replaceBytesInRange:(NSRange) {
+            .length = range.location + 2
+        } withBytes:NULL length:0];
+        
+        [self _parseEventData:eventData];
+        
+        // Look for next event
+        range = [_buffer rangeOfData:separatorLFLFData options:kNilOptions range:(NSRange) {
+            .length = _buffer.length
+        }];
+    }
+}
+
+- (void)_parseEventData:(NSData *)data
+{
+    WJXEvent *event = [[WJXEvent alloc] initWithReadyState:WJXEventStateOpen];
+    
+    NSString *eventString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
+    if (eventString.length == 0) { return; }
+    NSArray *lines = [eventString componentsSeparatedByCharactersInSet:NSCharacterSet.newlineCharacterSet];
+    BOOL hasDataLine = NO;
+    for (NSString *line in lines) {
+        if ([line hasPrefix:@"id:"]) {
+            event.eventId = [[line substringFromIndex:3] stringByTrimmingCharactersInSet:NSCharacterSet.whitespaceCharacterSet];
+        } else if ([line hasPrefix:@"event:"]) {
+            event.event = [[line substringFromIndex:6] stringByTrimmingCharactersInSet:NSCharacterSet.whitespaceCharacterSet];
+        } else if ([line hasPrefix:@"data:"]) {
+            hasDataLine = YES;
+            NSString *data = [[line substringFromIndex:5] stringByTrimmingCharactersInSet:NSCharacterSet.whitespaceCharacterSet];
+            event.data = event.data ? [event.data stringByAppendingFormat:@"\n%@", data] : data;
+        } else if ([line hasPrefix:@"retry:"]) {
+            NSString *retryString = [[line substringFromIndex:6] stringByTrimmingCharactersInSet:NSCharacterSet.whitespaceCharacterSet];
+            self.retryInterval = [retryString doubleValue] / 1000;
+        }
+    }
+
+    if (!hasDataLine) {
+        NSString *trimmed = [eventString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
+        if (trimmed.length > 0) {
+            event.data = trimmed;
+        }
+    }
+    
+    if (event.eventId) {
+        self.lastEventId = event.eventId;
+    }
+    
+    [self _dispatchEvent:event forName:WJXEventNameMessage];
+}
+
+- (void)_dispatchEvent:(WJXEvent *)event forName:(WJXEventName)name
+{
+    NSMutableArray<WJXEventHandler *> *listeners = self.listeners[name];
+    [listeners enumerateObjectsUsingBlock:^(WJXEventHandler * _Nonnull handler, NSUInteger idx, BOOL * _Nonnull stop) {
+        NSOperationQueue *queue = handler.queue ?: NSOperationQueue.mainQueue;
+        [queue addOperationWithBlock:^{
+            handler.handler(event);
+        }];
+    }];
+}
+
+- (void)_dispatchPlainBufferIfNeeded
+{
+    if (_buffer.length == 0) { return; }
+    NSData *data = [_buffer copy];
+    [_buffer setLength:0];
+    if (data.length == 0) { return; }
+    [self _parseEventData:data];
+}
+
+
+#pragma mark -
+#pragma mark Setters
+
+- (void)setDataTask:(NSURLSessionDataTask *)dataTask
+{
+    self.closedByUser = YES; {
+        [_dataTask cancel];
+        _dataTask = dataTask;
+    } self.closedByUser = NO;
+}
+
+@end

CustomKeyboard/PrefixHeader.pch

@@ -17,15 +17,22 @@
 
 // 公共配置
 #import "KBConfig.h"
+#import "KBAPI.h"      // 接口路径宏（统一管理）
 #import "Masonry.h"
 #import "KBHUD.h"   // 复用 App 内的 HUD 封装
 #import "KBLocalizationManager.h" // 复用多语言封装（可在扩展内使用）
 
 // 通用链接（Universal Links）统一配置
 // 配置好 AASA 与 Associated Domains 后，只需修改这里即可切换域名/path。
-#define KB_UL_BASE      @"https://your.domain/ul"   // 替换为你的真实域名与前缀路径
+#define KB_UL_BASE      @"https://app.tknb.net/ul"   // 与 Associated Domains 一致
 #define KB_UL_LOGIN     KB_UL_BASE @"/login"
 #define KB_UL_SETTINGS  KB_UL_BASE @"/settings"
 
+// 在扩展内，启用 URL Bridge（仅在显式的用户点击动作中使用）
+// 这样即便宿主 App（如备忘录）拒绝 extensionContext 的 openURL，仍可通过响应链兜底拉起容器 App。
+#ifndef KB_URL_BRIDGE_ENABLE
+#define KB_URL_BRIDGE_ENABLE 1
+#endif
+
 
 #endif /* PrefixHeader_pch */

CustomKeyboard/Resource/KBSkinIconMap.strings

@@ -0,0 +1,248 @@
+/* 字母 q（小写） */
+"letter_q_lower" = "key_q";
+/* 字母 Q（大写） */
+"letter_q_upper" = "key_q_up";
+
+/* 字母 w（小写） */
+"letter_w_lower" = "key_w";
+/* 字母 W（大写） */
+"letter_w_upper" = "key_w_up";
+
+/* 字母 e（小写） */
+"letter_e_lower" = "key_e";
+/* 字母 E（大写） */
+"letter_e_upper" = "key_e_up";
+
+/* 字母 r（小写） */
+"letter_r_lower" = "key_r";
+/* 字母 R（大写） */
+"letter_r_upper" = "key_r_up";
+
+/* 字母 t（小写） */
+"letter_t_lower" = "key_t";
+/* 字母 T（大写） */
+"letter_t_upper" = "key_t_up";
+
+/* 字母 y（小写） */
+"letter_y_lower" = "key_y";
+/* 字母 Y（大写） */
+"letter_y_upper" = "key_y_up";
+
+/* 字母 u（小写） */
+"letter_u_lower" = "key_u";
+/* 字母 U（大写） */
+"letter_u_upper" = "key_u_up";
+
+/* 字母 i（小写） */
+"letter_i_lower" = "key_i";
+/* 字母 I（大写） */
+"letter_i_upper" = "key_i_up";
+
+/* 字母 o（小写） */
+"letter_o_lower" = "key_o";
+/* 字母 O（大写） */
+"letter_o_upper" = "key_o_up";
+
+/* 字母 p（小写） */
+"letter_p_lower" = "key_p";
+/* 字母 P（大写） */
+"letter_p_upper" = "key_p_up";
+
+/* 字母 a（小写） */
+"letter_a_lower" = "key_a";
+/* 字母 A（大写） */
+"letter_a_upper" = "key_a_up";
+
+/* 字母 s（小写） */
+"letter_s_lower" = "key_s";
+/* 字母 S（大写） */
+"letter_s_upper" = "key_s_up";
+
+/* 字母 d（小写） */
+"letter_d_lower" = "key_d";
+/* 字母 D（大写） */
+"letter_d_upper" = "key_d_up";
+
+/* 字母 f（小写） */
+"letter_f_lower" = "key_f";
+/* 字母 F（大写） */
+"letter_f_upper" = "key_f_up";
+
+/* 字母 g（小写） */
+"letter_g_lower" = "key_g";
+/* 字母 G（大写） */
+"letter_g_upper" = "key_f_up";
+
+/* 字母 h（小写） */
+"letter_h_lower" = "key_h";
+/* 字母 H（大写） */
+"letter_h_upper" = "key_h_up";
+
+/* 字母 j（小写） */
+"letter_j_lower" = "key_j";
+/* 字母 J（大写） */
+"letter_j_upper" = "key_j_up";
+
+/* 字母 k（小写） */
+"letter_k_lower" = "key_k";
+/* 字母 K（大写） */
+"letter_k_upper" = "key_k_up";
+
+/* 字母 l（小写） */
+"letter_l_lower" = "key_l";
+/* 字母 L（大写） */
+"letter_l_upper" = "key_l_up";
+
+/* 字母 z（小写） */
+"letter_z_lower" = "key_z";
+/* 字母 Z（大写） */
+"letter_z_upper" = "key_z_up";
+
+/* 字母 x（小写） */
+"letter_x_lower" = "key_x";
+/* 字母 X（大写） */
+"letter_x_upper" = "key_x_up";
+
+/* 字母 c（小写） */
+"letter_c_lower" = "key_c";
+/* 字母 C（大写） */
+"letter_c_upper" = "key_c_up";
+
+/* 字母 v（小写） */
+"letter_v_lower" = "key_v";
+/* 字母 V（大写） */
+"letter_v_upper" = "key_v_up";
+
+/* 字母 b（小写） */
+"letter_b_lower" = "key_b";
+/* 字母 B（大写） */
+"letter_b_upper" = "key_b_up";
+
+/* 字母 n（小写） */
+"letter_n_lower" = "key_n";
+/* 字母 N（大写） */
+"letter_n_upper" = "key_n_up";
+
+/* 字母 m（小写） */
+"letter_m_lower" = "key_m";
+/* 字母 M（大写） */
+"letter_m_upper" = "key_m_up";
+
+/* 数字 1 */
+"digit_1" = "key_1";
+/* 数字 2 */
+"digit_2" = "key_2";
+/* 数字 3 */
+"digit_3" = "key_3";
+/* 数字 4 */
+"digit_4" = "key_4";
+/* 数字 5 */
+"digit_5" = "key_5";
+/* 数字 6 */
+"digit_6" = "key_6";
+/* 数字 7 */
+"digit_7" = "key_7";
+/* 数字 8 */
+"digit_8" = "key_8";
+/* 数字 9 */
+"digit_9" = "key_9";
+/* 数字 0 */
+"digit_0" = "key_0";
+
+/* '-' */
+"sym_minus" = "key_minus";
+/* '/' */
+"sym_slash" = "key_slash";
+/* ':' */
+"sym_colon" = "key_colon";
+/* ';' */
+"sym_semicolon" = "key_semicolon";
+/* '(' */
+"sym_paren_l" = "key_paren_l";
+/* ')' */
+"sym_paren_r" = "key_paren_r";
+/* '$' */
+"sym_dollar" = "key_dollar";
+/* '&' */
+"sym_amp" = "key_amp";
+/* '@' */
+"sym_at" = "key_at";
+/* 双引号 " */
+"sym_quote_double" = "key_quote_d";
+
+/* ',' */
+"sym_comma" = "key_comma";
+/* '.' */
+"sym_dot" = "key_dot";
+/* '?' */
+"sym_question" = "key_question";
+/* '!' */
+"sym_exclam" = "key_exclam";
+/* 单引号 ' */
+"sym_quote_single" = "key_quote";
+
+/* '[' */
+"sym_bracket_l" = "key_bracket_l";
+/* ']' */
+"sym_bracket_r" = "key_bracket_r";
+/* '{' */
+"sym_brace_l" = "key_brace_l";
+/* '}' */
+"sym_brace_r" = "key_brace_r";
+/* '#' */
+"sym_hash" = "key_hash";
+/* '%' */
+"sym_percent" = "key_percent";
+/* '^' */
+"sym_caret" = "key_caret";
+/* '*' */
+"sym_asterisk" = "key_asterisk";
+/* '+' */
+"sym_plus" = "key_plus";
+/* '=' */
+"sym_equal" = "key_equal";
+
+/* '_' */
+"sym_underscore" = "key_underscore";
+/* '\' */
+"sym_backslash" = "key_backslash";
+/* '|' */
+"sym_pipe" = "key_pipe";
+/* '~' */
+"sym_tilde" = "key_tilde";
+/* '<' */
+"sym_lt" = "key_lt";
+/* '>' */
+"sym_gt" = "key_gt";
+/* '¥' */
+"sym_money" = "key_money";
+/* '€' */
+"sym_euro" = "key_euro";
+/* '£' */
+"sym_pound" = "key_pound";
+/* '•' */
+"sym_bullet" = "key_bullet";
+
+/* 空格键 */
+"space" = "key_space";
+/* 删除键（⌫） */
+"backspace" = "key_del";
+/* Shift（⇧） */
+"shift" = "key_up";
+/* Shift（⇧）大写 */
+"shift_upper" = "key_up_upper";
+/* 字母面板左下角 "123" */
+"mode_123" = "key_123";
+/* 数字面板左下角 "abc" */
+"mode_abc" = "key_abc";
+/* 数字面板内 "123 -> #+=" */
+"symbols_toggle_more" = "key_symbols_more";
+/* 数字面板内 "#+= -> 123" */
+"symbols_toggle_123" = "key_symbols_123";
+/* 自定义 AI 功能键 */
+"ai" = "key_ai";
+/* Emoji功能键 */
+"emoji" = "key_emoji";
+/* 发送/换行键 */
+"return" = "key_send";
+

CustomKeyboard/Utils/KBBackspaceLongPressHandler.h

@@ -0,0 +1,22 @@
+//
+//  KBBackspaceLongPressHandler.h
+//  CustomKeyboard
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface KBBackspaceLongPressHandler : NSObject
+
+- (instancetype)initWithContainerView:(UIView *)containerView;
+
+/// 配置删除按钮（包含长按删除；可选是否显示“立刻清空”提示）
+- (void)bindDeleteButton:(nullable UIView *)button showClearLabel:(BOOL)showClearLabel;
+
+/// 触发“立刻清空”逻辑（可用于功能面板的清空按钮）
+- (void)performClearAction;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Utils/KBBackspaceLongPressHandler.m

@@ -0,0 +1,492 @@
+//
+//  KBBackspaceLongPressHandler.m
+//  CustomKeyboard
+//
+
+#import "KBBackspaceLongPressHandler.h"
+#import "KBResponderUtils.h"
+#import "KBSkinManager.h"
+#import "KBBackspaceUndoManager.h"
+
+static const NSTimeInterval kKBBackspaceLongPressMinDuration = 0.35;
+static const NSTimeInterval kKBBackspaceRepeatInterval = 0.06;
+static const NSTimeInterval kKBBackspaceChunkStartDelay = 1.0;
+static const NSTimeInterval kKBBackspaceChunkRepeatInterval = 0.1;
+static const NSTimeInterval kKBBackspaceChunkFastDelay = 1.4;
+static const NSInteger kKBBackspaceChunkSize = 6;
+static const NSInteger kKBBackspaceChunkSizeFast = 12;
+static const CGFloat kKBBackspaceClearLabelCornerRadius = 8.0;
+static const CGFloat kKBBackspaceClearLabelHeight = 26.0;
+static const CGFloat kKBBackspaceClearLabelPaddingX = 10.0;
+static const CGFloat kKBBackspaceClearLabelTopGap = 6.0;
+static const CGFloat kKBBackspaceClearLabelHorizontalInset = 6.0;
+static const NSInteger kKBBackspaceClearBatchSize = 24;
+static const NSTimeInterval kKBBackspaceClearBatchInterval = 0.005;
+static const NSInteger kKBBackspaceClearMaxDeletes = 10000;
+static const NSInteger kKBBackspaceClearEmptyContextMaxRounds = 40;
+static const NSInteger kKBBackspaceClearMaxStep = 80;
+
+typedef NS_ENUM(NSInteger, KBBackspaceChunkClass) {
+    KBBackspaceChunkClassUnknown = 0,
+    KBBackspaceChunkClassWhitespace,
+    KBBackspaceChunkClassASCIIWord,
+    KBBackspaceChunkClassPunctuation,
+    KBBackspaceChunkClassOther
+};
+
+@interface KBBackspaceLongPressHandler ()
+@property (nonatomic, weak) UIView *containerView;
+@property (nonatomic, weak) UIView *backspaceButton;
+@property (nonatomic, strong) UILongPressGestureRecognizer *longPress;
+@property (nonatomic, assign) BOOL showClearLabelEnabled;
+@property (nonatomic, assign) BOOL backspaceHoldActive;
+@property (nonatomic, assign) NSTimeInterval backspaceHoldStartTime;
+@property (nonatomic, assign) BOOL backspaceChunkModeActive;
+@property (nonatomic, assign) BOOL backspaceClearHighlighted;
+@property (nonatomic, assign) NSUInteger backspaceHoldToken;
+@property (nonatomic, assign) BOOL backspaceHasLastTouchPoint;
+@property (nonatomic, assign) CGPoint backspaceLastTouchPointInSelf;
+@property (nonatomic, assign) NSUInteger backspaceClearToken;
+@property (nonatomic, strong) UILabel *backspaceClearLabel;
+@end
+
+@implementation KBBackspaceLongPressHandler
+
+- (instancetype)initWithContainerView:(UIView *)containerView {
+    if (self = [super init]) {
+        _containerView = containerView;
+    }
+    return self;
+}
+
+- (void)bindDeleteButton:(UIView *)button showClearLabel:(BOOL)showClearLabel {
+    if (self.backspaceButton == button) { return; }
+
+    if (self.longPress && self.backspaceButton) {
+        [self.backspaceButton removeGestureRecognizer:self.longPress];
+    }
+    self.backspaceButton = button;
+    self.showClearLabelEnabled = showClearLabel;
+    self.backspaceHoldActive = NO;
+    self.backspaceChunkModeActive = NO;
+    self.backspaceClearHighlighted = NO;
+    self.backspaceHasLastTouchPoint = NO;
+    self.backspaceHoldToken += 1;
+    [self kb_hideBackspaceClearLabel];
+
+    if (!button) { return; }
+
+    self.longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self
+                                                                   action:@selector(onBackspaceLongPress:)];
+    self.longPress.minimumPressDuration = kKBBackspaceLongPressMinDuration;
+    self.longPress.allowableMovement = CGFLOAT_MAX;
+    self.longPress.cancelsTouchesInView = YES;
+    [button addGestureRecognizer:self.longPress];
+}
+
+- (void)performClearAction {
+    [self kb_clearAllInput];
+}
+
+#pragma mark - Long Press
+
+- (void)onBackspaceLongPress:(UILongPressGestureRecognizer *)gr {
+    UIView *hostView = [self kb_hostView];
+    if (!hostView) { return; }
+    if (gr) {
+        self.backspaceLastTouchPointInSelf = [gr locationInView:hostView];
+        self.backspaceHasLastTouchPoint = YES;
+    }
+    switch (gr.state) {
+        case UIGestureRecognizerStateBegan: {
+            [[KBBackspaceUndoManager shared] registerNonClearAction];
+            self.backspaceHoldToken += 1;
+            NSUInteger token = self.backspaceHoldToken;
+            self.backspaceHoldActive = YES;
+            self.backspaceHoldStartTime = [NSDate date].timeIntervalSinceReferenceDate;
+            self.backspaceChunkModeActive = NO;
+            [self kb_setBackspaceClearHighlighted:NO];
+            [self kb_hideBackspaceClearLabel];
+            if (self.showClearLabelEnabled) {
+                [self kb_showBackspaceClearLabelIfNeeded];
+            }
+            [self kb_backspaceStepForToken:token];
+        } break;
+        case UIGestureRecognizerStateChanged: {
+            [self kb_handleBackspaceLongPressChanged:gr];
+        } break;
+        case UIGestureRecognizerStateEnded:
+        case UIGestureRecognizerStateCancelled:
+        case UIGestureRecognizerStateFailed: {
+            [self kb_handleBackspaceLongPressEnded:gr];
+        } break;
+        default: break;
+    }
+}
+
+#pragma mark - Delete Steps
+
+- (void)kb_backspaceStepForToken:(NSUInteger)token {
+    if (!self.backspaceHoldActive) { return; }
+    if (token != self.backspaceHoldToken) { return; }
+    UIResponder *start = (UIResponder *)([self kb_hostView] ?: self.backspaceButton);
+    UIInputViewController *ivc = KBFindInputViewController(start);
+    if (!ivc) { self.backspaceHoldActive = NO; return; }
+    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
+    NSString *before = proxy.documentContextBeforeInput ?: @"";
+    NSTimeInterval elapsed = [NSDate date].timeIntervalSinceReferenceDate - self.backspaceHoldStartTime;
+    NSInteger deleteCount = 1;
+    if (before.length > 0) {
+        deleteCount = [self kb_backspaceDeleteCountForContext:before elapsed:elapsed];
+    }
+    if (!self.backspaceChunkModeActive && elapsed >= kKBBackspaceChunkStartDelay) {
+        self.backspaceChunkModeActive = YES;
+        if (self.showClearLabelEnabled) {
+            [self kb_showBackspaceClearLabelIfNeeded];
+        }
+    }
+    for (NSInteger i = 0; i < deleteCount; i++) {
+        [proxy deleteBackward];
+    }
+
+    NSTimeInterval interval = [self kb_backspaceRepeatIntervalForElapsed:elapsed];
+    __weak typeof(self) weakSelf = self;
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW,
+                                 (int64_t)(interval * NSEC_PER_SEC)),
+                   dispatch_get_main_queue(), ^{
+        __strong typeof(weakSelf) selfStrong = weakSelf;
+        [selfStrong kb_backspaceStepForToken:token];
+    });
+}
+
+- (NSTimeInterval)kb_backspaceRepeatIntervalForElapsed:(NSTimeInterval)elapsed {
+    if (elapsed >= kKBBackspaceChunkStartDelay) {
+        return kKBBackspaceChunkRepeatInterval;
+    }
+    return kKBBackspaceRepeatInterval;
+}
+
+- (NSInteger)kb_backspaceDeleteCountForContext:(NSString *)context elapsed:(NSTimeInterval)elapsed {
+    if (elapsed < kKBBackspaceChunkStartDelay) {
+        return 1;
+    }
+    NSInteger maxCount = (elapsed >= kKBBackspaceChunkFastDelay)
+                         ? kKBBackspaceChunkSizeFast : kKBBackspaceChunkSize;
+    return [self kb_backspaceChunkDeleteCountForContext:context maxCount:maxCount];
+}
+
+- (NSInteger)kb_backspaceChunkDeleteCountForContext:(NSString *)context maxCount:(NSInteger)maxCount {
+    if (context.length == 0) { return 1; }
+
+    static NSCharacterSet *whitespaceSet = nil;
+    static NSCharacterSet *asciiWordSet = nil;
+    static NSCharacterSet *punctuationSet = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        whitespaceSet = [NSCharacterSet whitespaceAndNewlineCharacterSet];
+        asciiWordSet = [NSCharacterSet characterSetWithCharactersInString:
+                        @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_"];
+        punctuationSet = [NSCharacterSet punctuationCharacterSet];
+    });
+
+    __block NSInteger deleteCount = 0;
+    __block KBBackspaceChunkClass chunkClass = KBBackspaceChunkClassUnknown;
+    [context enumerateSubstringsInRange:NSMakeRange(0, context.length)
+                                options:NSStringEnumerationByComposedCharacterSequences | NSStringEnumerationReverse
+                             usingBlock:^(NSString *substring, __unused NSRange substringRange, __unused NSRange enclosingRange, BOOL *stop) {
+        if (substring.length == 0) { return; }
+        KBBackspaceChunkClass currentClass = KBBackspaceChunkClassOther;
+        if ([substring rangeOfCharacterFromSet:whitespaceSet].location != NSNotFound) {
+            currentClass = KBBackspaceChunkClassWhitespace;
+        } else if ([substring rangeOfCharacterFromSet:asciiWordSet].location != NSNotFound) {
+            currentClass = KBBackspaceChunkClassASCIIWord;
+        } else if ([substring rangeOfCharacterFromSet:punctuationSet].location != NSNotFound) {
+            currentClass = KBBackspaceChunkClassPunctuation;
+        }
+
+        if (chunkClass == KBBackspaceChunkClassUnknown) {
+            chunkClass = currentClass;
+        } else if (chunkClass != currentClass) {
+            *stop = YES;
+            return;
+        }
+
+        deleteCount += 1;
+        if (deleteCount >= maxCount) {
+            *stop = YES;
+        }
+    }];
+
+    return MAX(deleteCount, 1);
+}
+
+- (NSInteger)kb_clearDeleteCountForContext:(NSString *)context
+                               hitBoundary:(BOOL *)hitBoundary {
+    if (context.length == 0) { return kKBBackspaceClearBatchSize; }
+
+    static NSCharacterSet *sentenceBoundarySet = nil;
+    static NSCharacterSet *whitespaceSet = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        sentenceBoundarySet = [NSCharacterSet characterSetWithCharactersInString:@".!?;。！？；…\n"];
+        whitespaceSet = [NSCharacterSet whitespaceAndNewlineCharacterSet];
+    });
+
+    NSInteger length = context.length;
+    NSInteger end = length;
+    while (end > 0) {
+        unichar ch = [context characterAtIndex:end - 1];
+        if ([whitespaceSet characterIsMember:ch]) {
+            end -= 1;
+        } else {
+            break;
+        }
+    }
+    NSInteger searchEnd = end;
+    while (searchEnd > 0) {
+        unichar ch = [context characterAtIndex:searchEnd - 1];
+        if ([sentenceBoundarySet characterIsMember:ch]) {
+            searchEnd -= 1;
+        } else {
+            break;
+        }
+    }
+
+    NSInteger boundaryIndex = NSNotFound;
+    for (NSInteger i = searchEnd - 1; i >= 0; i--) {
+        unichar ch = [context characterAtIndex:i];
+        if ([sentenceBoundarySet characterIsMember:ch]) {
+            boundaryIndex = i;
+            break;
+        }
+    }
+
+    BOOL boundaryFound = (boundaryIndex != NSNotFound);
+    NSInteger deleteCount = length;
+    if (boundaryIndex != NSNotFound) {
+        deleteCount = length - (boundaryIndex + 1);
+    }
+    deleteCount = MAX(deleteCount, 1);
+    if (hitBoundary) {
+        *hitBoundary = boundaryFound;
+    }
+    return MIN(deleteCount, kKBBackspaceClearMaxStep);
+}
+
+#pragma mark - Long Press State
+
+- (void)kb_handleBackspaceLongPressChanged:(UILongPressGestureRecognizer *)gr {
+    if (!self.backspaceHoldActive) { return; }
+    if (!self.showClearLabelEnabled) { return; }
+    [self kb_showBackspaceClearLabelIfNeeded];
+    UIView *hostView = [self kb_hostView];
+    if (!hostView) { return; }
+    CGPoint point = [gr locationInView:hostView];
+    self.backspaceLastTouchPointInSelf = point;
+    self.backspaceHasLastTouchPoint = YES;
+    BOOL inside = [self kb_isPointInsideBackspaceClearLabel:point];
+    [self kb_setBackspaceClearHighlighted:inside];
+}
+
+- (void)kb_handleBackspaceLongPressEnded:(UILongPressGestureRecognizer *)gr {
+    BOOL shouldClear = NO;
+    if (self.showClearLabelEnabled) {
+        shouldClear = self.backspaceClearHighlighted;
+        if (!shouldClear) {
+            UIView *hostView = [self kb_hostView];
+            CGPoint point = CGPointZero;
+            if (gr && hostView) {
+                point = [gr locationInView:hostView];
+            } else if (self.backspaceHasLastTouchPoint) {
+                point = self.backspaceLastTouchPointInSelf;
+            }
+            shouldClear = [self kb_isPointInsideBackspaceClearLabel:point];
+        }
+    }
+    self.backspaceHoldActive = NO;
+    self.backspaceChunkModeActive = NO;
+    self.backspaceHoldToken += 1;
+    self.backspaceHasLastTouchPoint = NO;
+    [self kb_hideBackspaceClearLabel];
+    if (shouldClear) {
+        [self kb_clearAllInput];
+    }
+}
+
+#pragma mark - Clear Label
+
+- (void)kb_showBackspaceClearLabelIfNeeded {
+    UIView *hostView = [self kb_hostView];
+    if (!hostView || !self.backspaceButton) { return; }
+    UILabel *label = self.backspaceClearLabel;
+    [self kb_refreshBackspaceClearLabelColors];
+    if (!label.superview) {
+        [hostView addSubview:label];
+    }
+    [self kb_updateBackspaceClearLabelFrame];
+    [hostView bringSubviewToFront:label];
+    if (label.hidden) {
+        label.alpha = 0.0;
+        label.hidden = NO;
+        [self kb_playLightHaptic];
+        [UIView animateWithDuration:0.12 animations:^{
+            label.alpha = 1.0;
+        }];
+    }
+}
+
+- (void)kb_hideBackspaceClearLabel {
+    if (!_backspaceClearLabel || _backspaceClearLabel.hidden) { return; }
+    _backspaceClearLabel.hidden = YES;
+    _backspaceClearLabel.alpha = 1.0;
+    [self kb_setBackspaceClearHighlighted:NO];
+}
+
+- (void)kb_updateBackspaceClearLabelFrame {
+    UIView *hostView = [self kb_hostView];
+    if (!hostView || !self.backspaceButton || !self.backspaceClearLabel) { return; }
+    CGRect btnFrame = [self.backspaceButton convertRect:self.backspaceButton.bounds toView:hostView];
+    UILabel *label = self.backspaceClearLabel;
+    CGSize textSize = [label sizeThatFits:CGSizeMake(CGFLOAT_MAX, kKBBackspaceClearLabelHeight)];
+    CGFloat width = MAX(textSize.width + kKBBackspaceClearLabelPaddingX * 2.0, 60.0);
+    CGFloat height = kKBBackspaceClearLabelHeight;
+    CGFloat x = CGRectGetMidX(btnFrame) - width * 0.5;
+    CGFloat y = CGRectGetMinY(btnFrame) - height - kKBBackspaceClearLabelTopGap;
+    if (x < kKBBackspaceClearLabelHorizontalInset) { x = kKBBackspaceClearLabelHorizontalInset; }
+    CGFloat maxX = CGRectGetWidth(hostView.bounds) - kKBBackspaceClearLabelHorizontalInset - width;
+    if (x > maxX) { x = maxX; }
+    if (y < 0) { y = 0; }
+    label.frame = CGRectIntegral(CGRectMake(x, y, width, height));
+}
+
+- (BOOL)kb_isPointInsideBackspaceClearLabel:(CGPoint)point {
+    if (!self.backspaceClearLabel || self.backspaceClearLabel.hidden) { return NO; }
+    [self kb_updateBackspaceClearLabelFrame];
+    CGRect hitFrame = CGRectInset(self.backspaceClearLabel.frame, -12.0, -10.0);
+    return CGRectContainsPoint(hitFrame, point);
+}
+
+- (void)kb_setBackspaceClearHighlighted:(BOOL)highlighted {
+    if (self.backspaceClearHighlighted == highlighted) { return; }
+    self.backspaceClearHighlighted = highlighted;
+    [self kb_refreshBackspaceClearLabelColors];
+}
+
+- (void)kb_refreshBackspaceClearLabelColors {
+    UILabel *label = self.backspaceClearLabel;
+    label.textColor = [KBSkinManager shared].current.keyTextColor ?: UIColor.blackColor;
+    label.backgroundColor = self.backspaceClearHighlighted
+                            ? [self kb_backspaceClearLabelHighlightedColor]
+                            : [self kb_backspaceClearLabelNormalColor];
+}
+
+- (UIColor *)kb_backspaceClearLabelNormalColor {
+    KBSkinTheme *t = [KBSkinManager shared].current;
+    return t.keyHighlightBackground ?: [UIColor colorWithWhite:0.9 alpha:1.0];
+}
+
+- (UIColor *)kb_backspaceClearLabelHighlightedColor {
+    KBSkinTheme *t = [KBSkinManager shared].current;
+    return t.accentColor ?: t.keyHighlightBackground ?: [UIColor colorWithWhite:0.8 alpha:1.0];
+}
+
+- (void)kb_playLightHaptic {
+    if (@available(iOS 10.0, *)) {
+        UIImpactFeedbackGenerator *gen = [[UIImpactFeedbackGenerator alloc] initWithStyle:UIImpactFeedbackStyleLight];
+        [gen prepare];
+        [gen impactOccurred];
+    }
+}
+
+- (UILabel *)backspaceClearLabel {
+    if (!_backspaceClearLabel) {
+        UILabel *label = [[UILabel alloc] initWithFrame:CGRectZero];
+        label.text = @"立刻清空";
+        label.textAlignment = NSTextAlignmentCenter;
+        label.font = [UIFont systemFontOfSize:12 weight:UIFontWeightSemibold];
+        label.textColor = [KBSkinManager shared].current.keyTextColor ?: UIColor.blackColor;
+        label.backgroundColor = [self kb_backspaceClearLabelNormalColor];
+        label.layer.cornerRadius = kKBBackspaceClearLabelCornerRadius;
+        label.layer.masksToBounds = YES;
+        label.hidden = YES;
+        label.userInteractionEnabled = NO;
+        _backspaceClearLabel = label;
+    }
+    return _backspaceClearLabel;
+}
+
+#pragma mark - Clear
+
+- (void)kb_clearAllInput {
+    UIResponder *start = (UIResponder *)([self kb_hostView] ?: self.backspaceButton);
+    UIInputViewController *ivc = KBFindInputViewController(start);
+    if (ivc) {
+        NSString *before = ivc.textDocumentProxy.documentContextBeforeInput ?: @"";
+        [[KBBackspaceUndoManager shared] recordClearWithContext:before];
+    }
+    self.backspaceClearToken += 1;
+    NSUInteger token = self.backspaceClearToken;
+    [self kb_clearAllInputStepForToken:token guard:0 emptyRounds:0];
+}
+
+- (void)kb_clearAllInputStepForToken:(NSUInteger)token
+                               guard:(NSInteger)guard
+                         emptyRounds:(NSInteger)emptyRounds {
+    if (token != self.backspaceClearToken) { return; }
+    UIResponder *start = (UIResponder *)([self kb_hostView] ?: self.backspaceButton);
+    UIInputViewController *ivc = KBFindInputViewController(start);
+    if (!ivc) { return; }
+    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
+    NSString *before = proxy.documentContextBeforeInput ?: @"";
+    NSInteger count = before.length;
+    NSInteger batch = 0;
+    NSInteger nextEmptyRounds = emptyRounds;
+    BOOL hitBoundary = NO;
+    if (count > 0) {
+        batch = [self kb_clearDeleteCountForContext:before hitBoundary:&hitBoundary];
+        nextEmptyRounds = 0;
+    } else {
+        batch = kKBBackspaceClearBatchSize;
+        nextEmptyRounds = emptyRounds + 1;
+    }
+    if (batch <= 0) { batch = 1; }
+
+    if (guard >= kKBBackspaceClearMaxDeletes ||
+        nextEmptyRounds > kKBBackspaceClearEmptyContextMaxRounds) {
+        return;
+    }
+
+    for (NSInteger i = 0; i < batch; i++) {
+        [proxy deleteBackward];
+    }
+
+    NSInteger nextGuard = guard + batch;
+    BOOL shouldContinue = NO;
+    if (count > 0 && !hitBoundary) {
+        if (count > batch) {
+            shouldContinue = YES;
+        } else if ([proxy hasText]) {
+            shouldContinue = YES;
+        }
+    }
+
+    if (!shouldContinue) { return; }
+    __weak typeof(self) weakSelf = self;
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW,
+                                 (int64_t)(kKBBackspaceClearBatchInterval * NSEC_PER_SEC)),
+                   dispatch_get_main_queue(), ^{
+        __strong typeof(weakSelf) selfStrong = weakSelf;
+        [selfStrong kb_clearAllInputStepForToken:token
+                                           guard:nextGuard
+                                     emptyRounds:nextEmptyRounds];
+    });
+}
+
+#pragma mark - Helpers
+
+- (UIView *)kb_hostView {
+    if (self.containerView) { return self.containerView; }
+    return self.backspaceButton.superview;
+}
+
+@end

CustomKeyboard/Utils/KBBackspaceUndoManager.h

@@ -0,0 +1,29 @@
+//
+//  KBBackspaceUndoManager.h
+//  CustomKeyboard
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+extern NSNotificationName const KBBackspaceUndoStateDidChangeNotification;
+
+@interface KBBackspaceUndoManager : NSObject
+
+@property (nonatomic, readonly) BOOL hasUndo;
+
++ (instancetype)shared;
+
+/// 记录一次“立刻清空”删除的内容（基于 documentContextBeforeInput）
+- (void)recordClearWithContext:(NSString *)context;
+
+/// 在指定 responder 处执行撤销（向光标处插回删除的内容）
+- (void)performUndoFromResponder:(UIResponder *)responder;
+
+/// 非清空行为触发时，清理撤销状态
+- (void)registerNonClearAction;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Utils/KBBackspaceUndoManager.m

@@ -0,0 +1,170 @@
+//
+//  KBBackspaceUndoManager.m
+//  CustomKeyboard
+//
+
+#import "KBBackspaceUndoManager.h"
+#import "KBResponderUtils.h"
+
+NSNotificationName const KBBackspaceUndoStateDidChangeNotification = @"KBBackspaceUndoStateDidChangeNotification";
+
+@interface KBBackspaceUndoManager ()
+@property (nonatomic, strong) NSMutableArray<NSString *> *segments; // deletion order (last -> first)
+@property (nonatomic, assign) BOOL lastActionWasClear;
+@property (nonatomic, assign) BOOL hasUndo;
+@end
+
+@implementation KBBackspaceUndoManager
+
++ (instancetype)shared {
+    static KBBackspaceUndoManager *mgr = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        mgr = [[KBBackspaceUndoManager alloc] init];
+    });
+    return mgr;
+}
+
+- (instancetype)init {
+    if (self = [super init]) {
+        _segments = [NSMutableArray array];
+    }
+    return self;
+}
+
+- (void)recordClearWithContext:(NSString *)context {
+    if (context.length == 0) { return; }
+    NSString *segment = [self kb_segmentForClearFromContext:context];
+    if (segment.length == 0) { return; }
+
+    if (!self.lastActionWasClear) {
+        [self.segments removeAllObjects];
+    }
+    [self.segments addObject:segment];
+    self.lastActionWasClear = YES;
+    [self kb_updateHasUndo:YES];
+}
+
+- (void)performUndoFromResponder:(UIResponder *)responder {
+    if (self.segments.count == 0) { return; }
+    UIInputViewController *ivc = KBFindInputViewController(responder);
+    if (!ivc) { return; }
+    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
+    NSString *text = [self kb_buildUndoText];
+    if (text.length == 0) { return; }
+    [proxy insertText:text];
+
+    [self.segments removeAllObjects];
+    self.lastActionWasClear = NO;
+    [self kb_updateHasUndo:NO];
+}
+
+- (void)registerNonClearAction {
+    self.lastActionWasClear = NO;
+    if (self.segments.count == 0) { return; }
+    [self.segments removeAllObjects];
+    [self kb_updateHasUndo:NO];
+}
+
+#pragma mark - Helpers
+
+- (void)kb_updateHasUndo:(BOOL)hasUndo {
+    if (self.hasUndo == hasUndo) { return; }
+    self.hasUndo = hasUndo;
+    [[NSNotificationCenter defaultCenter] postNotificationName:KBBackspaceUndoStateDidChangeNotification object:self];
+}
+
+- (NSString *)kb_segmentForClearFromContext:(NSString *)context {
+    NSInteger length = context.length;
+    if (length == 0) { return @""; }
+
+    static NSCharacterSet *sentenceBoundarySet = nil;
+    static NSCharacterSet *whitespaceSet = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        sentenceBoundarySet = [NSCharacterSet characterSetWithCharactersInString:@".!?;。！？；…\n"];
+        whitespaceSet = [NSCharacterSet whitespaceAndNewlineCharacterSet];
+    });
+
+    NSInteger end = length;
+    while (end > 0) {
+        unichar ch = [context characterAtIndex:end - 1];
+        if ([whitespaceSet characterIsMember:ch]) {
+            end -= 1;
+        } else {
+            break;
+        }
+    }
+    NSInteger searchEnd = end;
+    while (searchEnd > 0) {
+        unichar ch = [context characterAtIndex:searchEnd - 1];
+        if ([sentenceBoundarySet characterIsMember:ch]) {
+            searchEnd -= 1;
+        } else {
+            break;
+        }
+    }
+
+    NSInteger boundaryIndex = NSNotFound;
+    for (NSInteger i = searchEnd - 1; i >= 0; i--) {
+        unichar ch = [context characterAtIndex:i];
+        if ([sentenceBoundarySet characterIsMember:ch]) {
+            boundaryIndex = i;
+            break;
+        }
+    }
+
+    NSInteger start = (boundaryIndex == NSNotFound) ? 0 : (boundaryIndex + 1);
+    if (start >= length) { return @""; }
+    return [context substringFromIndex:start];
+}
+
+- (NSString *)kb_buildUndoText {
+    if (self.segments.count == 0) { return @""; }
+    NSArray<NSString *> *ordered = [[self.segments reverseObjectEnumerator] allObjects];
+    NSMutableString *result = [NSMutableString string];
+    for (NSInteger i = 0; i < ordered.count; i++) {
+        NSString *segment = ordered[i] ?: @"";
+        if (segment.length == 0) { continue; }
+        if (i < ordered.count - 1) {
+            segment = [self kb_replaceTrailingBoundaryWithComma:segment];
+        }
+        [result appendString:segment];
+    }
+    return result;
+}
+
+- (NSString *)kb_replaceTrailingBoundaryWithComma:(NSString *)segment {
+    if (segment.length == 0) { return segment; }
+
+    static NSCharacterSet *boundarySet = nil;
+    static NSCharacterSet *englishBoundarySet = nil;
+    static NSCharacterSet *whitespaceSet = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        boundarySet = [NSCharacterSet characterSetWithCharactersInString:@".!?;。！？；…\n"];
+        englishBoundarySet = [NSCharacterSet characterSetWithCharactersInString:@".!?;"];
+        whitespaceSet = [NSCharacterSet whitespaceAndNewlineCharacterSet];
+    });
+
+    NSInteger idx = segment.length - 1;
+    while (idx >= 0) {
+        unichar ch = [segment characterAtIndex:idx];
+        if ([whitespaceSet characterIsMember:ch]) {
+            idx -= 1;
+            continue;
+        }
+        if (![boundarySet characterIsMember:ch]) {
+            return segment;
+        }
+        NSString *comma = [englishBoundarySet characterIsMember:ch] ? @"," : @"，";
+        NSMutableString *mutable = [segment mutableCopy];
+        NSRange r = NSMakeRange(idx, 1);
+        [mutable replaceCharactersInRange:r withString:comma];
+        return mutable;
+    }
+
+    return segment;
+}
+
+@end

CustomKeyboard/Utils/KBExtensionAppLauncher.h

@@ -0,0 +1,36 @@
+//
+//  KBExtensionAppLauncher.h
+//  CustomKeyboard
+//
+//  封装：在键盘扩展中拉起主 App（Scheme / Universal Link + 响应链兜底）。
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface KBExtensionAppLauncher : NSObject
+
+/// 通用入口：优先尝试 primaryURL，失败后尝试 fallbackURL，
+/// 两者都失败时再通过响应链（openURL:）做兜底。
+/// - Parameters:
+///   - primaryURL: 第一优先尝试的 URL（可为 Scheme 或 UL）
+///   - fallbackURL: 失败时的备用 URL（可为 nil）
+///   - ivc: 当前的 UIInputViewController（用于 extensionContext openURL）
+///   - source: 兜底时用作起点的 responder（通常传 self 或 self.view）
+///   - completion: 最终是否“看起来已成功发起”打开动作（不保证一定跳转到 App）
++ (void)openPrimaryURL:(NSURL * _Nullable)primaryURL
+           fallbackURL:(NSURL * _Nullable)fallbackURL
+  usingInputController:(UIInputViewController *)ivc
+                source:(UIResponder *)source
+            completion:(void (^ _Nullable)(BOOL success))completion;
+
+/// 简化版：只针对单一 Scheme 做尝试 + 响应链兜底。
++ (void)openScheme:(NSURL *)scheme
+ usingInputController:(UIInputViewController *)ivc
+              source:(UIResponder *)source
+          completion:(void (^ _Nullable)(BOOL success))completion;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/Utils/KBExtensionAppLauncher.m

@@ -0,0 +1,121 @@
+//
+//  KBExtensionAppLauncher.m
+//  CustomKeyboard
+//
+
+#import "KBExtensionAppLauncher.h"
+#import <objc/message.h>
+
+@implementation KBExtensionAppLauncher
+
++ (void)openPrimaryURL:(NSURL * _Nullable)primaryURL
+           fallbackURL:(NSURL * _Nullable)fallbackURL
+  usingInputController:(UIInputViewController *)ivc
+                source:(UIResponder *)source
+            completion:(void (^ _Nullable)(BOOL success))completion {
+    if (!ivc || (!primaryURL && !fallbackURL)) {
+        if (completion) { completion(NO); }
+        return;
+    }
+
+    // 保证在主线程回调，避免调用方再做一次 dispatch。
+    void (^finish)(BOOL) = ^(BOOL ok){
+        if (!completion) return;
+        if ([NSThread isMainThread]) {
+            completion(ok);
+        } else {
+            dispatch_async(dispatch_get_main_queue(), ^{ completion(ok); });
+        }
+    };
+
+    NSURL *first = primaryURL ?: fallbackURL;
+    NSURL *second = (first == primaryURL) ? fallbackURL : nil;
+
+    if (!first) {
+        finish(NO);
+        return;
+    }
+
+    [ivc.extensionContext openURL:first completionHandler:^(BOOL ok) {
+        if (ok) {
+            finish(YES);
+            return;
+        }
+
+        if (second) {
+            [ivc.extensionContext openURL:second completionHandler:^(BOOL ok2) {
+                if (ok2) {
+                    finish(YES);
+                    return;
+                }
+                BOOL bridged = [self p_bridgeFirst:first second:second from:source];
+                finish(bridged);
+            }];
+        } else {
+            BOOL bridged = [self p_bridgeFirst:first second:nil from:source];
+            finish(bridged);
+        }
+    }];
+}
+
++ (void)openScheme:(NSURL *)scheme
+ usingInputController:(UIInputViewController *)ivc
+              source:(UIResponder *)source
+          completion:(void (^ _Nullable)(BOOL success))completion {
+    [self openPrimaryURL:scheme
+             fallbackURL:nil
+    usingInputController:ivc
+                  source:source
+              completion:completion];
+}
+
+#pragma mark - Private
+
+// 通过响应链尝试调用 openURL:（等价于原 KBURLOpenBridge 实现）
++ (BOOL)p_openURLViaResponder:(NSURL *)url from:(UIResponder *)start {
+#if KB_URL_BRIDGE_ENABLE
+    if (!url || !start) return NO;
+    SEL sel = NSSelectorFromString(@"openURL:");
+    UIResponder *responder = start;
+    while (responder) {
+        @try {
+            if ([responder respondsToSelector:sel]) {
+                BOOL handled = NO;
+                BOOL (*funcBool)(id, SEL, NSURL *) = (BOOL (*)(id, SEL, NSURL *))objc_msgSend;
+                if (funcBool) {
+                    handled = funcBool(responder, sel, url);
+                } else {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+                    [responder performSelector:sel withObject:url];
+                    handled = YES;
+#pragma clang diagnostic pop
+                }
+                return handled;
+            }
+        } @catch (__unused NSException *e) {
+            // ignore and continue
+        }
+        responder = responder.nextResponder;
+    }
+    return NO;
+#else
+    (void)url; (void)start;
+    return NO;
+#endif
+}
+
++ (BOOL)p_bridgeFirst:(NSURL * _Nullable)first
+               second:(NSURL * _Nullable)second
+                 from:(UIResponder *)source {
+    BOOL bridged = NO;
+    if (first) {
+        bridged = [self p_openURLViaResponder:first from:source];
+    }
+    if (!bridged && second) {
+        bridged = [self p_openURLViaResponder:second from:source];
+    }
+    return bridged;
+}
+
+@end

CustomKeyboard/View/Buy/KBKeyboardSubscriptionFeatureItemView.h

@@ -0,0 +1,21 @@
+//
+//  KBKeyboardSubscriptionFeatureItemView.h
+//  CustomKeyboard
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 顶部滚动的功能点 Item（左图右文）
+@interface KBKeyboardSubscriptionFeatureItemView : UIView
+
+- (void)configureWithImage:(UIImage *)image title:(NSString *)title;
+
+/// 根据 title 计算推荐宽度：textWidth + 50（图片 35 + 间距 5 + 左右内边距各 5）
++ (CGFloat)preferredWidthForTitle:(NSString *)title;
+
+@end
+
+NS_ASSUME_NONNULL_END
+

CustomKeyboard/View/Buy/KBKeyboardSubscriptionFeatureItemView.m

@@ -0,0 +1,86 @@
+//
+//  KBKeyboardSubscriptionFeatureItemView.m
+//  CustomKeyboard
+//
+
+#import "KBKeyboardSubscriptionFeatureItemView.h"
+#import "Masonry.h"
+
+@interface KBKeyboardSubscriptionFeatureItemView ()
+@property (nonatomic, strong) UIImageView *iconView;
+@property (nonatomic, strong) UILabel *titleLabel;
+@end
+
+@implementation KBKeyboardSubscriptionFeatureItemView
+
+static const CGFloat kKBFeatureItemPadding = 5.0;
+static const CGFloat kKBFeatureItemIconSize = 35.0;
+static const CGFloat kKBFeatureItemGap = 5.0;
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+//        self.layer.cornerRadius = 24;
+//        self.layer.masksToBounds = YES;
+//        self.backgroundColor = [[UIColor whiteColor] colorWithAlphaComponent:0.85];
+
+        [self addSubview:self.iconView];
+        [self addSubview:self.titleLabel];
+
+        [self.iconView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.mas_left).offset(kKBFeatureItemPadding);
+            make.centerY.equalTo(self.mas_centerY);
+            make.width.height.mas_equalTo(kKBFeatureItemIconSize);
+        }];
+
+        [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.iconView.mas_right).offset(kKBFeatureItemGap);
+            make.centerY.equalTo(self.mas_centerY);
+            make.right.equalTo(self.mas_right).offset(-kKBFeatureItemPadding);
+        }];
+    }
+    return self;
+}
+
+- (void)configureWithImage:(UIImage *)image title:(NSString *)title {
+    self.iconView.image = image;
+    self.titleLabel.text = title ?: @"";
+}
+
++ (CGFloat)preferredWidthForTitle:(NSString *)title {
+    UIFont *font = [UIFont systemFontOfSize:13 weight:UIFontWeightSemibold];
+    NSString *text = title ?: @"";
+    NSArray<NSString *> *lines = [text componentsSeparatedByCharactersInSet:[NSCharacterSet newlineCharacterSet]];
+    CGFloat maxLineWidth = 0;
+    for (NSString *line in lines) {
+        NSString *trimLine = [line stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
+        if (trimLine.length == 0) { continue; }
+        CGSize size = [trimLine sizeWithAttributes:@{NSFontAttributeName: font}];
+        maxLineWidth = MAX(maxLineWidth, ceil(size.width));
+    }
+    if (maxLineWidth <= 0) { maxLineWidth = 80; }
+
+    CGFloat width = maxLineWidth + 50.0; // 5 + 35 + 5 + 5
+    width = MIN(MAX(width, 120.0), 240.0);
+    return width;
+}
+
+- (UIImageView *)iconView {
+    if (!_iconView) {
+        _iconView = [[UIImageView alloc] init];
+        _iconView.contentMode = UIViewContentModeScaleAspectFit;
+    }
+    return _iconView;
+}
+
+- (UILabel *)titleLabel {
+    if (!_titleLabel) {
+        _titleLabel = [[UILabel alloc] init];
+        _titleLabel.font = [UIFont systemFontOfSize:13 weight:UIFontWeightSemibold];
+        _titleLabel.textColor = [UIColor colorWithHex:0x4A4A4A];
+        _titleLabel.numberOfLines = 0;
+        _titleLabel.lineBreakMode = NSLineBreakByWordWrapping;
+    }
+    return _titleLabel;
+}
+
+@end

CustomKeyboard/View/Buy/KBKeyboardSubscriptionFeatureMarqueeView.h

@@ -0,0 +1,20 @@
+//
+//  KBKeyboardSubscriptionFeatureMarqueeView.h
+//  CustomKeyboard
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 顶部功能点横向自动滚动视图
+@interface KBKeyboardSubscriptionFeatureMarqueeView : UIView
+
+/// titles/images 数量不一致时，以较小的 count 为准
+- (void)configureWithTitles:(NSArray<NSString *> *)titles
+                     images:(NSArray<UIImage *> *)images;
+
+@end
+
+NS_ASSUME_NONNULL_END
+

CustomKeyboard/View/Buy/KBKeyboardSubscriptionFeatureMarqueeView.m

@@ -0,0 +1,215 @@
+//
+//  KBKeyboardSubscriptionFeatureMarqueeView.m
+//  CustomKeyboard
+//
+
+#import "KBKeyboardSubscriptionFeatureMarqueeView.h"
+#import "KBKeyboardSubscriptionFeatureItemView.h"
+#import "Masonry.h"
+
+@interface KBKeyboardSubscriptionFeatureMarqueeView ()
+@property (nonatomic, strong) UIScrollView *scrollView;
+@property (nonatomic, strong) UIView *contentView;
+@property (nonatomic, strong) CADisplayLink *displayLink;
+@property (nonatomic, assign) CGFloat loopWidth;
+@property (nonatomic, copy) NSArray<NSDictionary *> *items;
+@end
+
+@implementation KBKeyboardSubscriptionFeatureMarqueeView
+
+static const CGFloat kKBFeatureMarqueeItemSpacing = 12.0;
+static const CGFloat kKBFeatureMarqueeSpeedPerFrame = 0.35f;
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        self.backgroundColor = [UIColor clearColor];
+        [self addSubview:self.scrollView];
+        [self.scrollView addSubview:self.contentView];
+
+        [self.scrollView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.edges.equalTo(self);
+        }];
+        [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.top.bottom.equalTo(self.scrollView);
+            make.left.equalTo(self.scrollView);
+            make.height.equalTo(self.scrollView);
+            make.right.equalTo(self.scrollView);
+        }];
+    }
+    return self;
+}
+
+- (void)dealloc {
+    [self stopTicker];
+}
+
+- (void)didMoveToWindow {
+    [super didMoveToWindow];
+    if (self.window) {
+        [self startTickerIfNeeded];
+    } else {
+        [self stopTicker];
+    }
+}
+
+- (void)setHidden:(BOOL)hidden {
+    BOOL oldHidden = self.isHidden;
+    [super setHidden:hidden];
+    if (oldHidden == hidden) { return; }
+    if (hidden) {
+        [self stopTicker];
+    } else if (self.window) {
+        [self startTickerIfNeeded];
+    }
+}
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
+    // 宽度变化时重新评估是否需要滚动
+    [self rebuildIfNeeded];
+}
+
+#pragma mark - Public
+
+- (void)configureWithTitles:(NSArray<NSString *> *)titles images:(NSArray<UIImage *> *)images {
+    NSInteger count = MIN(titles.count, images.count);
+    if (count <= 0) {
+        self.items = @[];
+        [self rebuildIfNeeded];
+        return;
+    }
+    NSMutableArray *arr = [NSMutableArray arrayWithCapacity:(NSUInteger)count];
+    for (NSInteger i = 0; i < count; i++) {
+        NSString *t = titles[(NSUInteger)i] ?: @"";
+        UIImage *img = images[(NSUInteger)i] ?: [UIImage new];
+        [arr addObject:@{@"title": t, @"image": img}];
+    }
+    self.items = [arr copy];
+    [self rebuildIfNeeded];
+}
+
+#pragma mark - Build
+
+- (void)rebuildIfNeeded {
+    [self.contentView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
+    if (self.items.count == 0) {
+        self.loopWidth = 0;
+        self.scrollView.contentSize = CGSizeZero;
+        self.scrollView.contentOffset = CGPointZero;
+        [self stopTicker];
+        return;
+    }
+
+    BOOL shouldLoop = (self.items.count > 1);
+    NSInteger baseCount = self.items.count;
+
+    NSMutableArray<NSNumber *> *baseWidths = [NSMutableArray arrayWithCapacity:(NSUInteger)baseCount];
+    CGFloat baseTotalWidth = 0;
+    for (NSInteger i = 0; i < baseCount; i++) {
+        NSDictionary *info = self.items[(NSUInteger)i];
+        NSString *title = [info[@"title"] isKindOfClass:NSString.class] ? info[@"title"] : @"";
+        CGFloat w = [KBKeyboardSubscriptionFeatureItemView preferredWidthForTitle:title];
+        [baseWidths addObject:@(w)];
+        baseTotalWidth += w;
+        if (i > 0) { baseTotalWidth += kKBFeatureMarqueeItemSpacing; }
+    }
+
+    NSArray *loopData = shouldLoop ? [self.items arrayByAddingObjectsFromArray:self.items] : self.items;
+    CGFloat totalWidth = shouldLoop ? (baseTotalWidth * 2 + kKBFeatureMarqueeItemSpacing) : baseTotalWidth;
+
+    UIView *previous = nil;
+    for (NSInteger idx = 0; idx < loopData.count; idx++) {
+        NSDictionary *info = loopData[(NSUInteger)idx];
+        UIImage *img = [info[@"image"] isKindOfClass:UIImage.class] ? info[@"image"] : nil;
+        NSString *title = [info[@"title"] isKindOfClass:NSString.class] ? info[@"title"] : @"";
+        CGFloat width = baseWidths[(NSUInteger)(idx % baseCount)].doubleValue;
+
+        KBKeyboardSubscriptionFeatureItemView *itemView = [[KBKeyboardSubscriptionFeatureItemView alloc] init];
+        [itemView configureWithImage:(img ?: [UIImage new]) title:title];
+        [self.contentView addSubview:itemView];
+
+        [itemView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.top.bottom.equalTo(self.contentView);
+            make.width.mas_equalTo(width);
+            if (previous) {
+                make.left.equalTo(previous.mas_right).offset(kKBFeatureMarqueeItemSpacing);
+            } else {
+                make.left.equalTo(self.contentView.mas_left);
+            }
+        }];
+        previous = itemView;
+    }
+
+    [self.contentView mas_remakeConstraints:^(MASConstraintMaker *make) {
+        make.top.bottom.equalTo(self.scrollView);
+        make.left.equalTo(self.scrollView);
+        make.height.equalTo(self.scrollView);
+        if (previous) {
+            make.right.equalTo(previous.mas_right);
+        } else {
+            make.right.equalTo(self.scrollView);
+        }
+    }];
+
+    CGFloat minWidth = CGRectGetWidth(self.bounds);
+    if (minWidth <= 0) { minWidth = 1; }
+    CGFloat height = CGRectGetHeight(self.bounds);
+    if (height <= 0) { height = 48; }
+
+    CGFloat contentWidth = totalWidth;
+    if (contentWidth <= minWidth) {
+        contentWidth = minWidth;
+        self.loopWidth = 0;
+        [self stopTicker];
+        self.scrollView.contentOffset = CGPointZero;
+    } else {
+        self.loopWidth = shouldLoop ? (baseTotalWidth + kKBFeatureMarqueeItemSpacing) : 0;
+        [self startTickerIfNeeded];
+    }
+    self.scrollView.contentSize = CGSizeMake(contentWidth, height);
+}
+
+#pragma mark - Ticker
+
+- (void)startTickerIfNeeded {
+    if (self.displayLink || self.loopWidth <= 0) { return; }
+    self.displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(handleTick)];
+    self.displayLink.preferredFramesPerSecond = 60;
+    [self.displayLink addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
+}
+
+- (void)stopTicker {
+    [self.displayLink invalidate];
+    self.displayLink = nil;
+}
+
+- (void)handleTick {
+    if (self.loopWidth <= 0) { return; }
+    CGFloat nextX = self.scrollView.contentOffset.x + kKBFeatureMarqueeSpeedPerFrame;
+    if (nextX >= self.loopWidth) {
+        nextX -= self.loopWidth;
+    }
+    self.scrollView.contentOffset = CGPointMake(nextX, 0);
+}
+
+#pragma mark - Lazy
+
+- (UIScrollView *)scrollView {
+    if (!_scrollView) {
+        _scrollView = [[UIScrollView alloc] init];
+        _scrollView.showsHorizontalScrollIndicator = NO;
+        _scrollView.scrollEnabled = NO;
+        _scrollView.clipsToBounds = YES;
+    }
+    return _scrollView;
+}
+
+- (UIView *)contentView {
+    if (!_contentView) {
+        _contentView = [[UIView alloc] init];
+    }
+    return _contentView;
+}
+
+@end
+

CustomKeyboard/View/Buy/KBKeyboardSubscriptionOptionCell.h

@@ -0,0 +1,18 @@
+//
+//  KBKeyboardSubscriptionOptionCell.h
+//  CustomKeyboard
+//
+//  Created by Mac on 2025/12/17.
+//
+
+#import <UIKit/UIKit.h>
+#import "KBKeyboardSubscriptionProduct.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface KBKeyboardSubscriptionOptionCell : UICollectionViewCell
+- (void)configureWithProduct:(KBKeyboardSubscriptionProduct *)product;
+- (void)applySelected:(BOOL)selected animated:(BOOL)animated;
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/View/Buy/KBKeyboardSubscriptionOptionCell.m

@@ -0,0 +1,151 @@
+//
+//  KBKeyboardSubscriptionOptionCell.m
+//  CustomKeyboard
+//
+//  Created by Mac on 2025/12/17.
+//
+
+#import "KBKeyboardSubscriptionOptionCell.h"
+@interface KBKeyboardSubscriptionOptionCell()
+@property (nonatomic, strong) UIView *cardView;
+@property (nonatomic, strong) UILabel *titleLabel;
+@property (nonatomic, strong) UILabel *priceLabel;
+@property (nonatomic, strong) UILabel *strikeLabel;
+@property (nonatomic, strong) UIImageView *selectedImageView;
+@end
+@implementation KBKeyboardSubscriptionOptionCell
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        self.contentView.backgroundColor = [UIColor clearColor];
+        [self.contentView addSubview:self.cardView];
+        [self.cardView addSubview:self.titleLabel];
+        [self.cardView addSubview:self.priceLabel];
+        [self.cardView addSubview:self.strikeLabel];
+        [self.cardView addSubview:self.selectedImageView];
+
+        [self.cardView mas_makeConstraints:^(MASConstraintMaker *make) {
+//            make.edges.equalTo(self.contentView);
+            make.left.right.top.equalTo(self.contentView);
+            make.bottom.equalTo(self.contentView).offset(-10);
+        }];
+
+        [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.top.equalTo(self.cardView.mas_top).offset(8);
+            make.left.equalTo(self.cardView.mas_left).offset(10);
+            make.right.equalTo(self.cardView.mas_right).offset(-10);
+        }];
+
+        [self.priceLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.titleLabel.mas_left);
+            make.top.equalTo(self.titleLabel.mas_bottom).offset(8);
+        }];
+
+        [self.strikeLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.priceLabel.mas_right).offset(5);
+            make.centerY.equalTo(self.priceLabel);
+        }];
+
+        [self.selectedImageView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.centerX.equalTo(self.cardView.mas_centerX);
+            make.bottom.equalTo(self.cardView.mas_bottom).offset(10);
+            make.width.mas_equalTo(16);
+            make.height.mas_equalTo(17);
+        }];
+    }
+    return self;
+}
+
+- (void)prepareForReuse {
+    [super prepareForReuse];
+    self.titleLabel.text = @"";
+    self.priceLabel.text = @"";
+    self.strikeLabel.attributedText = nil;
+    self.strikeLabel.hidden = YES;
+    [self applySelected:NO animated:NO];
+}
+
+- (void)configureWithProduct:(KBKeyboardSubscriptionProduct *)product {
+    if (!product) { return; }
+    self.titleLabel.text = [product displayTitle];
+    self.priceLabel.text = [product priceDisplayText];
+    NSString *strike = [product strikePriceDisplayText];
+    if (strike.length > 0) {
+        NSDictionary *attr = @{
+            NSStrikethroughStyleAttributeName: @(NSUnderlineStyleSingle),
+            NSForegroundColorAttributeName: [UIColor colorWithHex:0xCCCCCC],
+            NSFontAttributeName: [UIFont systemFontOfSize:14]
+        };
+        self.strikeLabel.attributedText = [[NSAttributedString alloc] initWithString:strike attributes:attr];
+        self.strikeLabel.hidden = NO;
+    } else {
+        self.strikeLabel.attributedText = nil;
+        self.strikeLabel.hidden = YES;
+    }
+}
+
+- (void)applySelected:(BOOL)selected animated:(BOOL)animated {
+    void (^changes)(void) = ^{
+        self.cardView.layer.borderColor = selected ? [UIColor colorWithHex:0x02BEAC].CGColor : [[UIColor blackColor] colorWithAlphaComponent:0.12].CGColor;
+        self.cardView.layer.borderWidth = selected ? 2.0 : 1.0;
+        self.selectedImageView.alpha = selected ? 1.0 : 0.0;
+    };
+    if (animated) {
+        self.selectedImageView.hidden = NO;
+        [UIView animateWithDuration:0.18 animations:changes completion:^(BOOL finished) {
+            self.selectedImageView.hidden = !selected;
+        }];
+    } else {
+        changes();
+        self.selectedImageView.hidden = !selected;
+    }
+}
+
+- (UIView *)cardView {
+    if (!_cardView) {
+        _cardView = [[UIView alloc] init];
+        _cardView.backgroundColor = [UIColor colorWithWhite:1 alpha:0.96];
+        _cardView.layer.cornerRadius = 20;
+        _cardView.layer.borderWidth = 1.0;
+        _cardView.layer.borderColor = [[UIColor blackColor] colorWithAlphaComponent:0.12].CGColor;
+    }
+    return _cardView;
+}
+
+- (UILabel *)titleLabel {
+    if (!_titleLabel) {
+        _titleLabel = [[UILabel alloc] init];
+        _titleLabel.font = [UIFont systemFontOfSize:13 weight:UIFontWeightSemibold];
+        _titleLabel.numberOfLines = 2;
+        _titleLabel.textColor = [UIColor colorWithHex:0x1B1F1A];
+    }
+    return _titleLabel;
+}
+
+- (UILabel *)priceLabel {
+    if (!_priceLabel) {
+        _priceLabel = [[UILabel alloc] init];
+        _priceLabel.font = [UIFont systemFontOfSize:20 weight:UIFontWeightBold];
+        _priceLabel.textColor = [UIColor colorWithHex:0x1B1F1A];
+    }
+    return _priceLabel;
+}
+
+- (UILabel *)strikeLabel {
+    if (!_strikeLabel) {
+        _strikeLabel = [[UILabel alloc] init];
+        _strikeLabel.textColor = [UIColor colorWithHex:0xCCCCCC];
+        _strikeLabel.hidden = YES;
+    }
+    return _strikeLabel;
+}
+
+- (UIImageView *)selectedImageView {
+    if (!_selectedImageView) {
+        _selectedImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"buy_sel_icon"]];
+        _selectedImageView.contentMode = UIViewContentModeScaleAspectFit;
+        _selectedImageView.hidden = YES;
+        _selectedImageView.alpha = 0.0;
+    }
+    return _selectedImageView;
+}
+@end

CustomKeyboard/View/Buy/KBKeyboardSubscriptionView.h

@@ -0,0 +1,31 @@
+//
+//  KBKeyboardSubscriptionView.h
+//  CustomKeyboard
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class KBKeyboardSubscriptionProduct;
+@class KBKeyboardSubscriptionView;
+
+@protocol KBKeyboardSubscriptionViewDelegate <NSObject>
+@optional
+- (void)subscriptionViewDidTapClose:(KBKeyboardSubscriptionView *)view;
+- (void)subscriptionView:(KBKeyboardSubscriptionView *)view didTapPurchaseForProduct:(KBKeyboardSubscriptionProduct *)product;
+@end
+
+/// 键盘内的订阅弹层
+@interface KBKeyboardSubscriptionView : UIView
+
+@property (nonatomic, weak) id<KBKeyboardSubscriptionViewDelegate> delegate;
+
+/// 首次展示时调用，内部会自动请求订阅商品
+- (void)refreshProductsIfNeeded;
+/// 外部强制刷新
+- (void)reloadProducts;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/View/Buy/KBKeyboardSubscriptionView.m

@@ -0,0 +1,456 @@
+//
+//  KBKeyboardSubscriptionView.m
+//  CustomKeyboard
+//
+
+#import "KBKeyboardSubscriptionView.h"
+#import "KBKeyboardSubscriptionProduct.h"
+#import "KBNetworkManager.h"
+#import "KBFullAccessManager.h"
+#import "KBKeyboardSubscriptionFeatureMarqueeView.h"
+#import "KBKeyboardSubscriptionOptionCell.h"
+#import "KBConfig.h"
+
+#import <MJExtension/MJExtension.h>
+
+static NSString * const kKBKeyboardSubscriptionCellId = @"kKBKeyboardSubscriptionCellId";
+
+static id KBKeyboardSubscriptionSanitizeJSON(id obj) {
+    if (!obj || obj == (id)kCFNull) { return nil; }
+    if ([obj isKindOfClass:[NSDictionary class]]) {
+        NSDictionary *dict = (NSDictionary *)obj;
+        NSMutableDictionary *result = [NSMutableDictionary dictionaryWithCapacity:dict.count];
+        [dict enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL *stop) {
+            (void)stop;
+            if (![key isKindOfClass:[NSString class]]) { return; }
+            id sanitized = KBKeyboardSubscriptionSanitizeJSON(value);
+            if (!sanitized) { return; }
+            result[key] = sanitized;
+        }];
+        return result;
+    }
+    if ([obj isKindOfClass:[NSArray class]]) {
+        NSArray *arr = (NSArray *)obj;
+        NSMutableArray *result = [NSMutableArray arrayWithCapacity:arr.count];
+        for (id item in arr) {
+            id sanitized = KBKeyboardSubscriptionSanitizeJSON(item);
+            if (!sanitized) { continue; }
+            [result addObject:sanitized];
+        }
+        return result;
+    }
+    return obj;
+}
+
+@interface KBKeyboardSubscriptionView () <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout>
+@property (nonatomic, strong) UIImageView *cardView;
+@property (nonatomic, strong) UIButton *closeButton;
+@property (nonatomic, strong) KBKeyboardSubscriptionFeatureMarqueeView *featureMarqueeView;
+@property (nonatomic, strong) UICollectionView *collectionView;
+@property (nonatomic, strong) UIButton *purchaseButton;
+@property (nonatomic, strong) UILabel *agreementLabel;
+@property (nonatomic, strong) UIButton *agreementButton;
+@property (nonatomic, strong) UIActivityIndicatorView *loadingIndicator;
+@property (nonatomic, strong) UILabel *emptyLabel;
+@property (nonatomic, copy) NSArray<KBKeyboardSubscriptionProduct *> *products;
+@property (nonatomic, copy, nullable) NSArray *productsRawJSON;
+@property (nonatomic, assign) NSInteger selectedIndex;
+@property (nonatomic, assign) BOOL didLoadOnce;
+@property (nonatomic, assign, getter=isLoading) BOOL loading;
+@end
+
+@implementation KBKeyboardSubscriptionView
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        self.backgroundColor = [UIColor clearColor];
+        _selectedIndex = NSNotFound;
+        [self setupCardView];
+        [self setupFeatureItems];
+    }
+    return self;
+}
+
+#pragma mark - Public
+
+- (void)refreshProductsIfNeeded {
+    if (!self.didLoadOnce) {
+        [self fetchProducts];
+    }
+}
+
+- (void)reloadProducts {
+    [self fetchProducts];
+}
+
+#pragma mark - UI
+
+- (void)setupCardView {
+    [self addSubview:self.cardView];
+    [self.cardView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.mas_left).offset(0);
+        make.right.equalTo(self.mas_right).offset(0);
+        make.top.equalTo(self.mas_top).offset(0);
+        make.bottom.equalTo(self.mas_bottom).offset(0);
+    }];
+
+    [self.cardView addSubview:self.closeButton];
+    [self.cardView addSubview:self.featureMarqueeView];
+    [self.cardView addSubview:self.collectionView];
+    [self.cardView addSubview:self.purchaseButton];
+    [self.cardView addSubview:self.agreementLabel];
+    [self.cardView addSubview:self.agreementButton];
+    [self.cardView addSubview:self.loadingIndicator];
+    [self.cardView addSubview:self.emptyLabel];
+
+    [self.closeButton mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.cardView.mas_left).offset(12);
+        make.top.equalTo(self.cardView.mas_top).offset(25);
+        make.width.height.mas_equalTo(28);
+    }];
+
+    [self.featureMarqueeView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.closeButton.mas_right).offset(5);
+        make.centerY.equalTo(self.closeButton);
+        make.right.equalTo(self.cardView.mas_right).offset(-12);
+        make.height.mas_equalTo(48);
+    }];
+
+    [self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.right.equalTo(self).inset(16);
+        make.top.equalTo(self.featureMarqueeView.mas_bottom).offset(0);
+        make.height.mas_equalTo(76);
+    }];
+
+    [self.purchaseButton mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.cardView.mas_left).offset(16);
+        make.right.equalTo(self.cardView.mas_right).offset(-16);
+        make.top.equalTo(self.collectionView.mas_bottom).offset(20);
+//        make.bottom.equalTo(self.agreementLabel.mas_top).offset(-16);
+        make.height.mas_greaterThanOrEqualTo(@45);
+    }];
+    
+    [self.agreementLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.centerX.equalTo(self.cardView.mas_centerX);
+        make.top.equalTo(self.purchaseButton.mas_bottom).offset(8);
+    }];
+    
+    [self.agreementButton mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.centerX.equalTo(self.cardView.mas_centerX);
+        make.top.equalTo(self.agreementLabel.mas_bottom).offset(4);
+    }];
+
+   
+
+    
+
+    [self.loadingIndicator mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.center.equalTo(self.collectionView);
+    }];
+
+    [self.emptyLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.center.equalTo(self.collectionView);
+    }];
+
+    [self updatePurchaseButtonState];
+}
+
+- (void)setupFeatureItems {
+    NSArray *titles = @[
+        KBLocalized(@"Wireless Sub-ai\nDialogue"),
+        KBLocalized(@"Personalized\nKeyboard"),
+        KBLocalized(@"Chat\nPersona"),
+        KBLocalized(@"Emotional\nCounseling")
+    ];
+    NSArray *images = @[
+        [UIImage imageNamed:@"home_ai_icon"] ?: [UIImage new],
+        [UIImage imageNamed:@"home_keyboard_icon"] ?: [UIImage new],
+        [UIImage imageNamed:@"home_chat_icon"] ?: [UIImage new],
+        [UIImage imageNamed:@"home_emotion_icon"] ?: [UIImage new]
+    ];
+    [self.featureMarqueeView configureWithTitles:titles images:images];
+}
+
+#pragma mark - Actions
+
+- (void)onTapClose {
+    if ([self.delegate respondsToSelector:@selector(subscriptionViewDidTapClose:)]) {
+        [self.delegate subscriptionViewDidTapClose:self];
+    }
+}
+
+- (void)onTapPurchase {
+    if (self.selectedIndex == NSNotFound || self.selectedIndex >= self.products.count) {
+        [KBHUD showInfo:KBLocalized(@"Please select a product")];
+        return;
+    }
+    KBKeyboardSubscriptionProduct *product = self.products[self.selectedIndex];
+    [self kb_persistPrefillPayloadForProduct:product];
+    if ([self.delegate respondsToSelector:@selector(subscriptionView:didTapPurchaseForProduct:)]) {
+        [self.delegate subscriptionView:self didTapPurchaseForProduct:product];
+    }
+}
+
+- (void)onTapAgreement {
+    [KBHUD showInfo:KBLocalized(@"Agreement coming soon")];
+}
+
+#pragma mark - Data
+
+- (void)fetchProducts {
+    if (self.isLoading) { return; }
+    if (![[KBFullAccessManager shared] hasFullAccess]) {
+        [KBHUD showInfo:KBLocalized(@"Enable Full Access to continue")];
+        return;
+    }
+    self.loading = YES;
+    self.emptyLabel.hidden = YES;
+    [self.loadingIndicator startAnimating];
+    NSDictionary *params = @{@"type": @"subscription"};
+    __weak typeof(self) weakSelf = self;
+    [[KBNetworkManager shared] GET:API_SUBSCRIPTION_PRODUCT_LIST
+                        parameters:params
+                           headers:nil
+                         completion:^(NSDictionary *json, NSURLResponse *response, NSError *error) {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            __strong typeof(weakSelf) self = weakSelf;
+            if (!self) { return; }
+            self.loading = NO;
+            [self.loadingIndicator stopAnimating];
+            if (error) {
+                NSString *tip = error.localizedDescription ?: KBLocalized(@"Network error");
+                [KBHUD showInfo:tip];
+                self.products = @[];
+                self.productsRawJSON = nil;
+                self.selectedIndex = NSNotFound;
+                [self.collectionView reloadData];
+                self.emptyLabel.hidden = NO;
+                [self updatePurchaseButtonState];
+                return;
+            }
+            id dataObj = json[@"data"];
+            if (![dataObj isKindOfClass:[NSArray class]]) {
+                dataObj = json[@"list"];
+            }
+            if (![dataObj isKindOfClass:[NSArray class]]) {
+                self.products = @[];
+                self.productsRawJSON = nil;
+                self.selectedIndex = NSNotFound;
+                [self.collectionView reloadData];
+                self.emptyLabel.hidden = NO;
+                [self updatePurchaseButtonState];
+                return;
+            }
+            id sanitized = KBKeyboardSubscriptionSanitizeJSON(dataObj);
+            self.productsRawJSON = [sanitized isKindOfClass:NSArray.class] ? (NSArray *)sanitized : nil;
+            NSArray *models = [KBKeyboardSubscriptionProduct mj_objectArrayWithKeyValuesArray:(NSArray *)dataObj];
+            self.products = models ?: @[];
+            self.selectedIndex = self.products.count > 0 ? 0 : NSNotFound;
+            self.emptyLabel.hidden = self.products.count > 0;
+            [self.collectionView reloadData];
+            [self selectCurrentProductAnimated:NO];
+            [self updatePurchaseButtonState];
+            self.didLoadOnce = YES;
+        });
+    }];
+}
+
+- (void)kb_persistPrefillPayloadForProduct:(KBKeyboardSubscriptionProduct *)product {
+    if (![product isKindOfClass:KBKeyboardSubscriptionProduct.class]) { return; }
+    if (![self.productsRawJSON isKindOfClass:NSArray.class] || self.productsRawJSON.count == 0) { return; }
+    NSUserDefaults *ud = [[NSUserDefaults alloc] initWithSuiteName:AppGroup];
+    if (!ud) { return; }
+    NSMutableDictionary *payload = [NSMutableDictionary dictionary];
+    payload[@"ts"] = @((long long)floor([NSDate date].timeIntervalSince1970));
+    payload[@"src"] = @"keyboard";
+    if (product.productId.length) {
+        payload[@"productId"] = product.productId;
+    }
+    if (self.selectedIndex != NSNotFound) {
+        payload[@"selectedIndex"] = @(self.selectedIndex);
+    }
+    payload[@"products"] = self.productsRawJSON;
+    [ud setObject:payload forKey:AppGroup_SubscriptionPrefillPayload];
+    [ud synchronize];
+}
+
+- (void)selectCurrentProductAnimated:(BOOL)animated {
+    if (self.selectedIndex == NSNotFound || self.selectedIndex >= self.products.count) { return; }
+    NSIndexPath *indexPath = [NSIndexPath indexPathForItem:self.selectedIndex inSection:0];
+    [self.collectionView selectItemAtIndexPath:indexPath animated:animated scrollPosition:UICollectionViewScrollPositionCenteredHorizontally];
+    KBKeyboardSubscriptionOptionCell *cell = (KBKeyboardSubscriptionOptionCell *)[self.collectionView cellForItemAtIndexPath:indexPath];
+    if ([cell isKindOfClass:KBKeyboardSubscriptionOptionCell.class]) {
+        [cell applySelected:YES animated:animated];
+    }
+}
+
+- (void)updatePurchaseButtonState {
+    BOOL enabled = (self.products.count > 0);
+    self.purchaseButton.enabled = enabled;
+    self.purchaseButton.alpha = enabled ? 1.0 : 0.5;
+}
+
+#pragma mark - UICollectionView DataSource
+
+- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
+    return self.products.count;
+}
+
+- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
+    KBKeyboardSubscriptionOptionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kKBKeyboardSubscriptionCellId forIndexPath:indexPath];
+    if (indexPath.item < self.products.count) {
+        KBKeyboardSubscriptionProduct *product = self.products[indexPath.item];
+        [cell configureWithProduct:product];
+        BOOL selected = (indexPath.item == self.selectedIndex);
+        [cell applySelected:selected animated:NO];
+    } else {
+        [cell configureWithProduct:nil];
+        [cell applySelected:NO animated:NO];
+    }
+    return cell;
+}
+
+#pragma mark - UICollectionView Delegate
+
+- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
+    if (indexPath.item >= self.products.count) { return; }
+    NSInteger previous = self.selectedIndex;
+    self.selectedIndex = indexPath.item;
+    if (previous != NSNotFound && previous != indexPath.item) {
+        NSIndexPath *prev = [NSIndexPath indexPathForItem:previous inSection:0];
+        KBKeyboardSubscriptionOptionCell *prevCell = (KBKeyboardSubscriptionOptionCell *)[collectionView cellForItemAtIndexPath:prev];
+        [prevCell applySelected:NO animated:YES];
+    }
+    KBKeyboardSubscriptionOptionCell *cell = (KBKeyboardSubscriptionOptionCell *)[collectionView cellForItemAtIndexPath:indexPath];
+    [cell applySelected:YES animated:YES];
+}
+
+#pragma mark - Layout
+
+- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
+//    CGFloat width = MIN(MAX(collectionView.bounds.size.width * 0.56, 150), 220);
+    return CGSizeMake(160, collectionView.bounds.size.height);
+}
+
+- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
+    return 12.0;
+}
+
+- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
+    return UIEdgeInsetsMake(0, 0, 0, 0);
+}
+
+#pragma mark - Lazy
+
+- (UIImageView *)cardView {
+    if (!_cardView) {
+        _cardView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"keybord_bg_icon"]];
+//        _cardView.layer.cornerRadius = 20;
+//        _cardView.layer.masksToBounds = YES;
+        _cardView.userInteractionEnabled = YES;
+        _cardView.contentMode = UIViewContentModeScaleAspectFill;
+    }
+    return _cardView;
+}
+
+- (UIButton *)closeButton {
+    if (!_closeButton) {
+        _closeButton = [UIButton buttonWithType:UIButtonTypeSystem];
+        _closeButton.backgroundColor = [[UIColor whiteColor] colorWithAlphaComponent:0.7];
+        _closeButton.layer.cornerRadius = 14;
+        _closeButton.layer.masksToBounds = YES;
+        [_closeButton setTitle:@"✕" forState:UIControlStateNormal];
+        [_closeButton setTitleColor:[UIColor colorWithHex:0x666666] forState:UIControlStateNormal];
+        _closeButton.titleLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightSemibold];
+        [_closeButton addTarget:self action:@selector(onTapClose) forControlEvents:UIControlEventTouchUpInside];
+    }
+    return _closeButton;
+}
+
+- (KBKeyboardSubscriptionFeatureMarqueeView *)featureMarqueeView {
+    if (!_featureMarqueeView) {
+        _featureMarqueeView = [[KBKeyboardSubscriptionFeatureMarqueeView alloc] init];
+    }
+    return _featureMarqueeView;
+}
+
+- (UICollectionView *)collectionView {
+    if (!_collectionView) {
+        UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
+        layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
+        _collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
+        _collectionView.backgroundColor = [UIColor clearColor];
+        _collectionView.showsHorizontalScrollIndicator = NO;
+        _collectionView.dataSource = self;
+        _collectionView.delegate = self;
+        [_collectionView registerClass:KBKeyboardSubscriptionOptionCell.class forCellWithReuseIdentifier:kKBKeyboardSubscriptionCellId];
+    }
+    return _collectionView;
+}
+
+- (UIButton *)purchaseButton {
+    if (!_purchaseButton) {
+        _purchaseButton = [UIButton buttonWithType:UIButtonTypeSystem];
+        _purchaseButton.layer.cornerRadius = 26;
+        _purchaseButton.layer.masksToBounds = YES;
+        [_purchaseButton setTitle:KBLocalized(@"Recharge Now") forState:UIControlStateNormal];
+        _purchaseButton.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold];
+        [_purchaseButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
+        [_purchaseButton setBackgroundImage:[self imageWithColor:[UIColor colorWithHex:0x02BEAC]] forState:UIControlStateNormal];
+        [_purchaseButton addTarget:self action:@selector(onTapPurchase) forControlEvents:UIControlEventTouchUpInside];
+    }
+    return _purchaseButton;
+}
+
+- (UILabel *)agreementLabel {
+    if (!_agreementLabel) {
+        _agreementLabel = [[UILabel alloc] init];
+        _agreementLabel.text = KBLocalized(@"By clicking \"pay\", you agree to the");
+        _agreementLabel.font = [UIFont systemFontOfSize:11];
+        _agreementLabel.textColor = [UIColor colorWithHex:0x4A4A4A];
+    }
+    return _agreementLabel;
+}
+
+- (UIButton *)agreementButton {
+    if (!_agreementButton) {
+        _agreementButton = [UIButton buttonWithType:UIButtonTypeSystem];
+        [_agreementButton setTitle:KBLocalized(@"Membership Agreement") forState:UIControlStateNormal];
+        _agreementButton.titleLabel.font = [UIFont systemFontOfSize:11 weight:UIFontWeightSemibold];
+        [_agreementButton setTitleColor:[UIColor colorWithHex:0x02BEAC] forState:UIControlStateNormal];
+        [_agreementButton addTarget:self action:@selector(onTapAgreement) forControlEvents:UIControlEventTouchUpInside];
+    }
+    return _agreementButton;
+}
+
+- (UIActivityIndicatorView *)loadingIndicator {
+    if (!_loadingIndicator) {
+        _loadingIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleMedium];
+        _loadingIndicator.hidesWhenStopped = YES;
+    }
+    return _loadingIndicator;
+}
+
+- (UILabel *)emptyLabel {
+    if (!_emptyLabel) {
+        _emptyLabel = [[UILabel alloc] init];
+        _emptyLabel.text = KBLocalized(@"No products available");
+        _emptyLabel.font = [UIFont systemFontOfSize:13];
+        _emptyLabel.textColor = [[UIColor blackColor] colorWithAlphaComponent:0.4];
+        _emptyLabel.textAlignment = NSTextAlignmentCenter;
+        _emptyLabel.hidden = YES;
+    }
+    return _emptyLabel;
+}
+
+- (UIImage *)imageWithColor:(UIColor *)color {
+    CGSize size = CGSizeMake(1, 1);
+    UIGraphicsBeginImageContextWithOptions(size, NO, 0);
+    [color setFill];
+    UIRectFill(CGRectMake(0, 0, size.width, size.height));
+    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
+    UIGraphicsEndImageContext();
+    return image;
+}
+
+@end

CustomKeyboard/View/EmojiView/KBEmojiBottomBarView.h

@@ -0,0 +1,13 @@
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface KBEmojiBottomBarView : UIView
+
+@property (nonatomic, strong, readonly) UIScrollView *tabScrollView;
+@property (nonatomic, strong, readonly) UIStackView *tabStackView;
+@property (nonatomic, strong, readonly) UIButton *deleteButton;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/View/EmojiView/KBEmojiBottomBarView.m

@@ -0,0 +1,63 @@
+#import "KBEmojiBottomBarView.h"
+#import "Masonry.h"
+
+@interface KBEmojiBottomBarView ()
+
+@property (nonatomic, strong, readwrite) UIScrollView *tabScrollView;
+@property (nonatomic, strong, readwrite) UIStackView *tabStackView;
+@property (nonatomic, strong, readwrite) UIButton *deleteButton;
+
+@end
+
+@implementation KBEmojiBottomBarView
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        [self setupUI];
+    }
+    return self;
+}
+
+- (void)setupUI {
+    self.backgroundColor = [UIColor clearColor];
+
+    self.tabScrollView = [[UIScrollView alloc] init];
+    self.tabScrollView.showsHorizontalScrollIndicator = NO;
+    self.tabScrollView.backgroundColor = [UIColor clearColor];
+    [self addSubview:self.tabScrollView];
+
+    self.tabStackView = [[UIStackView alloc] init];
+    self.tabStackView.axis = UILayoutConstraintAxisHorizontal;
+    self.tabStackView.spacing = 8;
+    self.tabStackView.alignment = UIStackViewAlignmentFill;
+    [self.tabScrollView addSubview:self.tabStackView];
+
+    self.deleteButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    self.deleteButton.layer.cornerRadius = 16;
+    self.deleteButton.layer.masksToBounds = YES;
+//    self.deleteButton.titleLabel.font = [UIFont systemFontOfSize:24 weight:UIFontWeightSemibold];
+//    [self.deleteButton setTitle:@"⌫" forState:UIControlStateNormal];
+    [self.deleteButton setImage:[UIImage imageNamed:@"kb_del_icon"] forState:UIControlStateNormal];
+    [self addSubview:self.deleteButton];
+
+    [self.tabScrollView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.mas_left).offset(12);
+        make.right.equalTo(self.deleteButton.mas_left).offset(-12);
+        make.top.equalTo(self.mas_top).offset(4);
+        make.bottom.equalTo(self.mas_bottom).offset(-4);
+    }];
+
+    [self.tabStackView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.equalTo(self.tabScrollView);
+        make.height.equalTo(self.tabScrollView);
+    }];
+
+    [self.deleteButton mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.right.equalTo(self.mas_right).offset(-12);
+        make.centerY.equalTo(self);
+        make.width.mas_equalTo(44);
+        make.height.equalTo(self.tabScrollView);
+    }];
+}
+
+@end

CustomKeyboard/View/EmojiView/KBEmojiCollectionCell.h

@@ -0,0 +1,17 @@
+//
+//  KBEmojiCollectionCell.h
+//  CustomKeyboard
+//
+//  Created by Mac on 2025/12/15.
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface KBEmojiCollectionCell : UICollectionViewCell
+@property (nonatomic, strong) UILabel *emojiLabel;
+- (void)configureWithEmoji:(NSString *)emoji;
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/View/EmojiView/KBEmojiCollectionCell.m

@@ -0,0 +1,38 @@
+//
+//  KBEmojiCollectionCell.m
+//  CustomKeyboard
+//
+//  Created by Mac on 2025/12/15.
+//
+
+#import "KBEmojiCollectionCell.h"
+
+@implementation KBEmojiCollectionCell
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        _emojiLabel = [[UILabel alloc] init];
+        _emojiLabel.font = [UIFont systemFontOfSize:32];
+        _emojiLabel.textAlignment = NSTextAlignmentCenter;
+        _emojiLabel.translatesAutoresizingMaskIntoConstraints = NO;
+        [self.contentView addSubview:_emojiLabel];
+        [NSLayoutConstraint activateConstraints:@[
+            [_emojiLabel.topAnchor constraintEqualToAnchor:self.contentView.topAnchor],
+            [_emojiLabel.bottomAnchor constraintEqualToAnchor:self.contentView.bottomAnchor],
+            [_emojiLabel.leadingAnchor constraintEqualToAnchor:self.contentView.leadingAnchor],
+            [_emojiLabel.trailingAnchor constraintEqualToAnchor:self.contentView.trailingAnchor],
+        ]];
+        self.contentView.layer.cornerRadius = 10;
+        self.contentView.layer.masksToBounds = YES;
+    }
+    return self;
+}
+
+- (void)prepareForReuse {
+    [super prepareForReuse];
+    self.emojiLabel.text = @"";
+}
+
+- (void)configureWithEmoji:(NSString *)emoji {
+    self.emojiLabel.text = emoji ?: @"";
+}
+@end

CustomKeyboard/View/EmojiView/KBEmojiPanelView.h

@@ -0,0 +1,35 @@
+//
+//  KBEmojiPanelView.h
+//  CustomKeyboard
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class KBEmojiPanelView, KBSkinTheme;
+
+@protocol KBEmojiPanelViewDelegate <NSObject>
+- (void)emojiPanelView:(KBEmojiPanelView *)panel didSelectEmoji:(NSString *)emoji;
+- (void)emojiPanelViewDidRequestClose:(KBEmojiPanelView *)panel;
+- (void)emojiPanelViewDidTapSearch:(KBEmojiPanelView *)panel;
+@optional
+- (void)emojiPanelViewDidTapDelete:(KBEmojiPanelView *)panel;
+@end
+
+@interface KBEmojiPanelView : UIView
+
+@property (nonatomic, weak) id<KBEmojiPanelViewDelegate> delegate;
+
+/// 刷新数据（包括常用分类）。
+- (void)reloadData;
+
+/// 应用当前主题色
+- (void)applyTheme:(KBSkinTheme *)theme;
+
+/// 高亮指定分类
+- (void)selectCategoryAtIndex:(NSInteger)index;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/View/EmojiView/KBEmojiPanelView.m

@@ -0,0 +1,439 @@
+//
+//  KBEmojiPanelView.m
+//  CustomKeyboard
+//
+
+#import "KBEmojiPanelView.h"
+#import "KBEmojiDataProvider.h"
+#import "KBSkinManager.h"
+#import "KBLocalizationManager.h"
+#import "Masonry.h"
+#import "KBEmojiCollectionCell.h"
+#import "KBEmojiBottomBarView.h"
+
+
+@interface KBEmojiPanelView () <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout>
+
+@property (nonatomic, strong) UILabel *titleLabel;
+@property (nonatomic, strong) UIButton *backButton;
+@property (nonatomic, strong) UICollectionView *collectionView;
+@property (nonatomic, strong) KBEmojiBottomBarView *bottomBar;
+//@property (nonatomic, strong) UIButton *searchButton;
+@property (nonatomic, strong) NSArray<UIButton *> *tabButtons;
+@property (nonatomic, strong) KBEmojiDataProvider *dataProvider;
+@property (nonatomic, copy) NSArray<KBEmojiCategory *> *categories;
+@property (nonatomic, assign) NSInteger currentIndex;
+@property (nonatomic, strong) UIView *magnifierView;
+@property (nonatomic, strong) UILabel *magnifierLabel;
+@property (nonatomic, strong) UIColor *tabNormalColor;
+@property (nonatomic, strong) UIColor *tabSelectedColor;
+
+@end
+
+@implementation KBEmojiPanelView
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        _dataProvider = [KBEmojiDataProvider shared];
+        _currentIndex = 1;
+        [self setupUI];
+        [self registerNotifications];
+        [self reloadData];
+    }
+    return self;
+}
+
+- (void)dealloc {
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+}
+
+#pragma mark - Setup
+
+- (void)setupUI {
+    self.backgroundColor = [UIColor colorWithWhite:0.08 alpha:1.0];
+
+    UIView *topBar = [[UIView alloc] init];
+    topBar.backgroundColor = [UIColor clearColor];
+    [self addSubview:topBar];
+
+    self.backButton = [UIButton buttonWithType:UIButtonTypeCustom];
+//    self.backButton.titleLabel.font = [UIFont systemFontOfSize:30 weight:UIFontWeightSemibold];
+//    [self.backButton setTitle:@"⌨︎" forState:UIControlStateNormal];
+    [self.backButton setImage:[UIImage imageNamed:@"back_keybord_icon"] forState:UIControlStateNormal];
+    [self.backButton addTarget:self action:@selector(onBack) forControlEvents:UIControlEventTouchUpInside];
+    [topBar addSubview:self.backButton];
+
+    self.titleLabel = [[UILabel alloc] init];
+    self.titleLabel.font = [UIFont systemFontOfSize:18 weight:UIFontWeightSemibold];
+    self.titleLabel.textColor = [UIColor whiteColor];
+    [topBar addSubview:self.titleLabel];
+
+    [topBar mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.right.equalTo(self);
+        make.top.equalTo(self.mas_top).offset(4);
+        make.height.mas_equalTo(40);
+    }];
+    [self.backButton mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(topBar.mas_left).offset(12);
+        make.centerY.equalTo(topBar);
+        make.width.height.mas_equalTo(32);
+    }];
+    [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.centerX.equalTo(self);
+        make.centerY.equalTo(topBar);
+//        make.right.lessThanOrEqualTo(topBar.mas_right).offset(-12);
+    }];
+
+    UICollectionViewFlowLayout *layout = [UICollectionViewFlowLayout new];
+    layout.scrollDirection = UICollectionViewScrollDirectionVertical;
+    layout.minimumInteritemSpacing = 8;
+    layout.minimumLineSpacing = 12;
+    self.collectionView = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
+    self.collectionView.backgroundColor = [UIColor clearColor];
+    self.collectionView.dataSource = self;
+    self.collectionView.delegate = self;
+    self.collectionView.alwaysBounceVertical = YES;
+    [self.collectionView registerClass:KBEmojiCollectionCell.class forCellWithReuseIdentifier:@"KBEmojiCollectionCell"];
+    [self addSubview:self.collectionView];
+
+    self.bottomBar = [[KBEmojiBottomBarView alloc] init];
+    [self addSubview:self.bottomBar];
+    [self.bottomBar.deleteButton addTarget:self action:@selector(onDelete) forControlEvents:UIControlEventTouchUpInside];
+
+//    self.searchButton = [UIButton buttonWithType:UIButtonTypeSystem];
+//    self.searchButton.layer.cornerRadius = 20;
+//    self.searchButton.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightBold];
+//    [self.searchButton setTitle:KBLocalized(@"Search") forState:UIControlStateNormal];
+//    [self.searchButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
+//    [self.searchButton addTarget:self action:@selector(onSearch) forControlEvents:UIControlEventTouchUpInside];
+//    [self.bottomBar addSubview:self.searchButton];
+
+    [self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.mas_left).offset(12);
+        make.right.equalTo(self.mas_right).offset(-12);
+        make.top.equalTo(topBar.mas_bottom).offset(0);
+        make.bottom.equalTo(self.bottomBar.mas_top).offset(0);
+    }];
+
+    [self.bottomBar mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.right.bottom.equalTo(self);
+        make.height.mas_equalTo(40);
+    }];
+
+    UISwipeGestureRecognizer *leftSwipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(onSwipe:)];
+    leftSwipe.direction = UISwipeGestureRecognizerDirectionLeft;
+    [self addGestureRecognizer:leftSwipe];
+    UISwipeGestureRecognizer *rightSwipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(onSwipe:)];
+    rightSwipe.direction = UISwipeGestureRecognizerDirectionRight;
+    [self addGestureRecognizer:rightSwipe];
+
+    [self applyTheme:[KBSkinManager shared].current];
+}
+
+- (void)layoutSubviews {
+    [super layoutSubviews];
+    [self updateTabButtonCornerRadii];
+}
+
+- (void)updateTabButtonCornerRadii {
+    for (UIButton *btn in self.tabButtons) {
+        CGFloat radius = MIN(CGRectGetHeight(btn.bounds), CGRectGetWidth(btn.bounds)) / 2.0;
+        if (radius <= 0) { continue; }
+        btn.layer.cornerRadius = radius;
+        if (@available(iOS 13.0, *)) {
+            btn.layer.cornerCurve = kCACornerCurveContinuous;
+        }
+    }
+    UIButton *deleteButton = self.bottomBar.deleteButton;
+    if (deleteButton) {
+        CGFloat radius = MIN(CGRectGetHeight(deleteButton.bounds), CGRectGetWidth(deleteButton.bounds)) / 2.0;
+        if (radius > 0) {
+            deleteButton.layer.cornerRadius = radius;
+            if (@available(iOS 13.0, *)) {
+                deleteButton.layer.cornerCurve = kCACornerCurveContinuous;
+            }
+        }
+    }
+}
+
+- (void)registerNotifications {
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(onEmojiDataChanged)
+                                                 name:KBEmojiRecentsDidChangeNotification
+                                               object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(onLocalizationChanged)
+                                                 name:KBLocalizationDidChangeNotification
+                                               object:nil];
+}
+
+#pragma mark - Data
+
+- (void)reloadData {
+    self.categories = self.dataProvider.categories;
+    if (self.categories.count == 0) {
+        self.currentIndex = NSNotFound;
+        [self.collectionView reloadData];
+        self.titleLabel.text = @"";
+        return;
+    }
+    NSInteger preserved = self.currentIndex;
+    if (preserved < 0 || preserved >= self.categories.count) {
+        preserved = 0;
+    }
+    [self rebuildTabButtons];
+    [self updateSelectionToIndex:preserved];
+}
+
+- (void)rebuildTabButtons {
+    UIStackView *stackView = self.bottomBar.tabStackView;
+    if (!stackView) { return; }
+    for (UIView *v in stackView.arrangedSubviews) {
+        [stackView removeArrangedSubview:v];
+        [v removeFromSuperview];
+    }
+    NSMutableArray<UIButton *> *buttons = [NSMutableArray arrayWithCapacity:self.categories.count];
+    [self.categories enumerateObjectsUsingBlock:^(KBEmojiCategory * _Nonnull cat, NSUInteger idx, BOOL * _Nonnull stop) {
+        UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
+        btn.tag = idx;
+        btn.layer.cornerRadius = 16;
+        btn.layer.masksToBounds = YES;
+        btn.titleLabel.font = [UIFont systemFontOfSize:18];
+        [btn setTitle:cat.iconSymbol ?: @"●" forState:UIControlStateNormal];
+        [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
+        [btn addTarget:self action:@selector(onTabTapped:) forControlEvents:UIControlEventTouchUpInside];
+        btn.contentEdgeInsets = UIEdgeInsetsMake(0, 12, 0, 12);
+        btn.translatesAutoresizingMaskIntoConstraints = NO;
+//        [btn.heightAnchor constraintEqualTo:self.bottomBar.tabScrollView.heightAnchor].active = YES;
+        [stackView addArrangedSubview:btn];
+        [buttons addObject:btn];
+    }];
+    self.tabButtons = buttons.copy;
+    [self setNeedsLayout];
+}
+
+- (void)updateSelectionToIndex:(NSInteger)index {
+    if (self.categories.count == 0) {
+        self.currentIndex = NSNotFound;
+        [self.collectionView reloadData];
+        self.titleLabel.text = @"";
+        return;
+    }
+    if (index < 0) { index = 0; }
+    if (index >= self.categories.count) { index = self.categories.count - 1; }
+    self.currentIndex = index;
+    KBEmojiCategory *cat = self.categories[index];
+    self.titleLabel.text = cat.displayTitle;
+    [self.collectionView reloadData];
+    [self updateTabHighlightStates];
+    [self scrollTabToVisible:index];
+}
+
+- (void)selectCategoryAtIndex:(NSInteger)index {
+    [self updateSelectionToIndex:index];
+}
+
+- (void)updateTabHighlightStates {
+    [self.tabButtons enumerateObjectsUsingBlock:^(UIButton * _Nonnull btn, NSUInteger idx, BOOL * _Nonnull stop) {
+        BOOL selected = (idx == self.currentIndex);
+        btn.backgroundColor = selected ? self.tabSelectedColor : self.tabNormalColor;
+        btn.alpha = selected ? 1.0 : 0.6;
+    }];
+}
+
+- (void)scrollTabToVisible:(NSInteger)index {
+    if (index < 0 || index >= self.tabButtons.count) return;
+    UIScrollView *scrollView = self.bottomBar.tabScrollView;
+    UIStackView *stackView = self.bottomBar.tabStackView;
+    if (!scrollView || !stackView) { return; }
+    UIButton *btn = self.tabButtons[index];
+    CGRect rect = [scrollView convertRect:btn.frame fromView:stackView];
+    rect = CGRectInset(rect, -12, 0);
+    [scrollView scrollRectToVisible:rect animated:YES];
+}
+
+#pragma mark - Actions
+
+- (void)onBack {
+    if ([self.delegate respondsToSelector:@selector(emojiPanelViewDidRequestClose:)]) {
+        [self.delegate emojiPanelViewDidRequestClose:self];
+    }
+}
+
+- (void)onSearch {
+    if ([self.delegate respondsToSelector:@selector(emojiPanelViewDidTapSearch:)]) {
+        [self.delegate emojiPanelViewDidTapSearch:self];
+    }
+}
+
+- (void)onDelete {
+    if ([self.delegate respondsToSelector:@selector(emojiPanelViewDidTapDelete:)]) {
+        [self.delegate emojiPanelViewDidTapDelete:self];
+    }
+}
+
+- (void)onTabTapped:(UIButton *)sender {
+    [self updateSelectionToIndex:sender.tag];
+}
+
+- (void)onSwipe:(UISwipeGestureRecognizer *)gesture {
+    if (self.categories.count == 0) return;
+    if (gesture.direction == UISwipeGestureRecognizerDirectionLeft) {
+        if (self.currentIndex + 1 < self.categories.count) {
+            [self updateSelectionToIndex:self.currentIndex + 1];
+        }
+    } else if (gesture.direction == UISwipeGestureRecognizerDirectionRight) {
+        if (self.currentIndex - 1 >= 0) {
+            [self updateSelectionToIndex:self.currentIndex - 1];
+        }
+    }
+}
+
+- (void)onEmojiDataChanged {
+    [self reloadData];
+}
+
+- (void)onLocalizationChanged {
+//    [self.searchButton setTitle:KBLocalized(@"Search") forState:UIControlStateNormal];
+    [self reloadData];
+}
+
+#pragma mark - Theme
+
+- (void)applyTheme:(KBSkinTheme *)theme {
+    UIColor *bg = theme.keyboardBackground ?: [UIColor colorWithWhite:0.08 alpha:1.0];
+    self.backgroundColor = bg;
+    self.collectionView.backgroundColor = [UIColor clearColor];
+    self.titleLabel.textColor = theme.keyTextColor ?: [UIColor whiteColor];
+    UIColor *searchColor = theme.accentColor ?: [UIColor colorWithRed:0.35 green:0.35 blue:0.95 alpha:1];
+//    self.searchButton.backgroundColor = searchColor;
+    self.tabNormalColor = [UIColor colorWithWhite:1 alpha:0.08];
+    self.tabSelectedColor = theme.accentColor ?: [UIColor colorWithWhite:1 alpha:0.25];
+    [self updateTabHighlightStates];
+    if (self.bottomBar.deleteButton) {
+        self.bottomBar.deleteButton.backgroundColor = self.tabNormalColor;
+        UIColor *deleteTitleColor = theme.keyTextColor ?: [UIColor whiteColor];
+        [self.bottomBar.deleteButton setTitleColor:deleteTitleColor forState:UIControlStateNormal];
+    }
+    if (self.magnifierView) {
+        self.magnifierView.backgroundColor = theme.keyBackground ?: [UIColor colorWithWhite:1 alpha:0.9];
+    }
+    if (self.magnifierLabel) {
+        self.magnifierLabel.textColor = theme.keyTextColor ?: [UIColor blackColor];
+    }
+}
+
+#pragma mark - Magnifier
+
+- (void)showMagnifierForEmoji:(NSString *)emoji fromRect:(CGRect)rect {
+    if (!self.magnifierView) {
+        self.magnifierView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 68, 68)];
+        self.magnifierView.layer.cornerRadius = 12;
+        self.magnifierView.layer.masksToBounds = YES;
+        self.magnifierView.layer.shadowColor = [UIColor colorWithWhite:0 alpha:0.3].CGColor;
+        self.magnifierView.layer.shadowOpacity = 0.6;
+        self.magnifierView.layer.shadowOffset = CGSizeMake(0, 2);
+        self.magnifierView.layer.shadowRadius = 3;
+        self.magnifierLabel = [[UILabel alloc] initWithFrame:self.magnifierView.bounds];
+        self.magnifierLabel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
+        self.magnifierLabel.textAlignment = NSTextAlignmentCenter;
+        self.magnifierLabel.font = [UIFont systemFontOfSize:40];
+        [self.magnifierView addSubview:self.magnifierLabel];
+        self.magnifierView.alpha = 0;
+        [self addSubview:self.magnifierView];
+    }
+    self.magnifierLabel.text = emoji;
+    CGRect converted = [self convertRect:rect fromView:self.collectionView];
+    CGFloat targetX = CGRectGetMidX(converted);
+    CGFloat targetY = CGRectGetMinY(converted) - CGRectGetHeight(self.magnifierView.bounds)/2 - 8;
+    targetX = MAX(CGRectGetWidth(self.magnifierView.bounds)/2 + 8, targetX);
+    targetX = MIN(CGRectGetWidth(self.bounds) - CGRectGetWidth(self.magnifierView.bounds)/2 - 8, targetX);
+    if (targetY < CGRectGetHeight(self.magnifierView.bounds)/2 + 10) {
+        targetY = CGRectGetHeight(self.magnifierView.bounds)/2 + 10;
+    }
+    self.magnifierView.center = CGPointMake(targetX, targetY);
+    self.magnifierView.hidden = NO;
+    [UIView animateWithDuration:0.08 animations:^{
+        self.magnifierView.alpha = 1.0;
+    }];
+}
+
+- (void)hideMagnifier {
+    if (!self.magnifierView) return;
+    [UIView animateWithDuration:0.08 animations:^{
+        self.magnifierView.alpha = 0.0;
+    } completion:^(BOOL finished) {
+        self.magnifierView.hidden = YES;
+    }];
+}
+
+#pragma mark - UICollectionViewDataSource
+
+- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
+    if (self.currentIndex == NSNotFound || self.currentIndex >= self.categories.count) {
+        return 0;
+    }
+    KBEmojiCategory *cat = self.categories[self.currentIndex];
+    return cat.items.count;
+}
+
+- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
+    KBEmojiCollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"KBEmojiCollectionCell" forIndexPath:indexPath];
+    KBEmojiCategory *cat = self.categories[self.currentIndex];
+    if (indexPath.item < cat.items.count) {
+        KBEmojiItem *item = cat.items[indexPath.item];
+        [cell configureWithEmoji:item.value];
+    } else {
+        [cell configureWithEmoji:@""];
+    }
+    return cell;
+}
+
+#pragma mark - UICollectionViewDelegate
+
+- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
+    if (self.currentIndex == NSNotFound || self.currentIndex >= self.categories.count) return;
+    KBEmojiCategory *cat = self.categories[self.currentIndex];
+    if (indexPath.item >= cat.items.count) return;
+    KBEmojiItem *item = cat.items[indexPath.item];
+    if (item.value.length == 0) return;
+    [self.dataProvider recordEmojiSelection:item.value];
+    if ([self.delegate respondsToSelector:@selector(emojiPanelView:didSelectEmoji:)]) {
+        [self.delegate emojiPanelView:self didSelectEmoji:item.value];
+    }
+}
+
+- (void)collectionView:(UICollectionView *)collectionView didHighlightItemAtIndexPath:(NSIndexPath *)indexPath {
+    KBEmojiCategory *cat = (self.currentIndex < self.categories.count) ? self.categories[self.currentIndex] : nil;
+    if (indexPath.item >= cat.items.count) return;
+    KBEmojiItem *item = cat.items[indexPath.item];
+    UICollectionViewCell *cell = [collectionView cellForItemAtIndexPath:indexPath];
+    if (!cell) return;
+    [self showMagnifierForEmoji:item.value fromRect:cell.frame];
+}
+
+- (void)collectionView:(UICollectionView *)collectionView didUnhighlightItemAtIndexPath:(NSIndexPath *)indexPath {
+    [self hideMagnifier];
+}
+
+#pragma mark - UICollectionViewDelegateFlowLayout
+
+- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
+    CGFloat availableWidth = collectionView.bounds.size.width;
+    NSInteger columns = 8;
+    CGFloat spacing = 8;
+    CGFloat totalSpacing = spacing * (columns - 1);
+    CGFloat width = floor((availableWidth - totalSpacing) / columns);
+    if (width < 32) { width = 32; }
+    return CGSizeMake(width, width);
+}
+
+- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
+    return 12;
+}
+
+- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
+    return 8;
+}
+
+@end

CustomKeyboard/View/Function/KBFunctionTagListView.h

@@ -0,0 +1,30 @@
+//
+//  KBFunctionTagListView.h
+//  封装标签列表（UICollectionView）
+//
+
+#import <UIKit/UIKit.h>
+#import "KBTagItemModel.h"
+NS_ASSUME_NONNULL_BEGIN
+
+@class KBFunctionTagListView;
+
+@protocol KBFunctionTagListViewDelegate <NSObject>
+@optional
+- (void)tagListView:(KBFunctionTagListView *)view didSelectIndex:(NSInteger)index title:(NSString *)title;
+@end
+
+@interface KBFunctionTagListView : UIView
+
+@property (nonatomic, weak, nullable) id<KBFunctionTagListViewDelegate> delegate;
+@property (nonatomic, strong, readonly) UICollectionView *collectionView;
+
+//- (void)setItems:(NSArray<NSString *> *)items;
+- (void)setItems:(NSArray<KBTagItemModel *> *)items;
+
+/// 在指定 index 上显示/隐藏加载指示（若 cell 不可见，内部会记录状态，待出现时应用）
+- (void)setLoading:(BOOL)loading atIndex:(NSInteger)index;
+
+@end
+
+NS_ASSUME_NONNULL_END

CustomKeyboard/View/Function/KBFunctionTagListView.m

@@ -0,0 +1,86 @@
+//
+//  KBFunctionTagListView.m
+//
+
+#import "KBFunctionTagListView.h"
+#import "KBFunctionTagCell.h"
+
+static NSString * const kKBFunctionTagCellId2 = @"KBFunctionTagCellId2";
+static CGFloat  const kKBItemSpace = 4;
+
+@interface KBFunctionTagListView () <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout>
+@property (nonatomic, strong) UICollectionView *collectionViewInternal;
+@property (nonatomic, copy) NSArray<KBTagItemModel *> *items;
+@property (nonatomic, strong) NSMutableSet<NSNumber *> *loadingIndexes; // 记录需要展示loading的index
+@end
+
+@implementation KBFunctionTagListView
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        UICollectionViewFlowLayout *layout = [UICollectionViewFlowLayout new];
+        _collectionViewInternal = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
+        _collectionViewInternal.backgroundColor = [UIColor clearColor];
+        _collectionViewInternal.dataSource = self;
+        _collectionViewInternal.delegate = self;
+        [_collectionViewInternal registerClass:[KBFunctionTagCell class] forCellWithReuseIdentifier:kKBFunctionTagCellId2];
+        [self addSubview:_collectionViewInternal];
+        _collectionViewInternal.translatesAutoresizingMaskIntoConstraints = NO;
+        [NSLayoutConstraint activateConstraints:@[
+            [_collectionViewInternal.topAnchor constraintEqualToAnchor:self.topAnchor],
+            [_collectionViewInternal.bottomAnchor constraintEqualToAnchor:self.bottomAnchor],
+            [_collectionViewInternal.leadingAnchor constraintEqualToAnchor:self.leadingAnchor],
+            [_collectionViewInternal.trailingAnchor constraintEqualToAnchor:self.trailingAnchor],
+        ]];
+        _items = @[];
+        _loadingIndexes = [NSMutableSet set];
+    }
+    return self;
+}
+
+//- (void)setItems:(NSArray<NSString *> *)items { _items = [items copy]; [self.collectionViewInternal reloadData]; }
+- (void)setItems:(NSArray<KBTagItemModel *> *)items{ _items = [items copy]; [self.collectionViewInternal reloadData]; }
+
+- (UICollectionView *)collectionView { return self.collectionViewInternal; }
+
+#pragma mark - UICollectionView
+
+- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { return self.items.count; }
+
+- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
+    KBFunctionTagCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kKBFunctionTagCellId2 forIndexPath:indexPath];
+    KBTagItemModel *itemModel = (indexPath.item < self.items.count) ? self.items[indexPath.item] : [KBTagItemModel new];
+    cell.itemModel = itemModel;
+    BOOL loading = [self.loadingIndexes containsObject:@(indexPath.item)];
+    [cell setLoading:loading];
+    return cell;
+}
+
+- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
+    CGFloat totalW = collectionView.bounds.size.width; CGFloat space = kKBItemSpace; NSInteger columns = 3;
+    CGFloat width = floor((totalW - space * (columns - 1)) / columns);
+    return CGSizeMake(width, 41);
+}
+
+- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section { return kKBItemSpace; }
+- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section { return kKBItemSpace; }
+
+- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
+    if ([self.delegate respondsToSelector:@selector(tagListView:didSelectIndex:title:)]) {
+        KBTagItemModel *model = (indexPath.item < self.items.count) ? self.items[indexPath.item] : [KBTagItemModel new];
+        [self.delegate tagListView:self didSelectIndex:indexPath.item title:model.characterName];
+    }
+}
+
+- (void)setLoading:(BOOL)loading atIndex:(NSInteger)index {
+    NSNumber *key = @(index);
+    if (loading) { [self.loadingIndexes addObject:key]; }
+    else { [self.loadingIndexes removeObject:key]; }
+    NSIndexPath *ip = [NSIndexPath indexPathForItem:index inSection:0];
+    if (ip && ip.item < [self.collectionViewInternal numberOfItemsInSection:0]) {
+        KBFunctionTagCell *cell = (KBFunctionTagCell *)[self.collectionViewInternal cellForItemAtIndexPath:ip];
+        if ([cell isKindOfClass:[KBFunctionTagCell class]]) { [cell setLoading:loading]; }
+    }
+}
+
+@end

CustomKeyboard/View/Function/KBStreamOverlayView.h

@@ -0,0 +1,28 @@
+//
+//  KBStreamOverlayView.h
+//  自带关闭按钮的流式展示层，内部持有 KBStreamTextView。
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class KBStreamTextView, KBStreamOverlayView;
+
+@protocol KBStreamOverlayViewDelegate <NSObject>
+@optional
+- (void)streamOverlayDidTapClose:(KBStreamOverlayView *)overlay;
+@end
+
+@interface KBStreamOverlayView : UIView
+
+@property (nonatomic, strong, readonly) KBStreamTextView *textView;
+@property (nonatomic, weak, nullable) id<KBStreamOverlayViewDelegate> delegate;
+
+- (void)appendChunk:(NSString *)text;
+- (void)finish;
+
+@end
+
+NS_ASSUME_NONNULL_END
+

CustomKeyboard/View/Function/KBStreamOverlayView.m

@@ -0,0 +1,150 @@
+//
+//  KBStreamOverlayView.m
+//
+
+#import "KBStreamOverlayView.h"
+#import "KBStreamTextView.h"
+#import "Masonry.h"
+
+@interface KBStreamOverlayView ()
+@property (nonatomic, strong) KBStreamTextView *textViewInternal;
+@property (nonatomic, strong) UIButton *closeButton;
+
+// 新增：流式打字机用的缓冲 & 定时器
+@property (nonatomic, strong) NSMutableString *pendingText;
+@property (nonatomic, strong) NSTimer *streamTimer;
+@property (nonatomic, assign) NSInteger charsPerTick; // 每次“跳”几个字符
+// 新增：标记 SSE 已经收到 done
+@property (nonatomic, assign) BOOL streamDidReceiveDone;
+@end
+
+@implementation KBStreamOverlayView
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        self.backgroundColor = [UIColor colorWithWhite:1.0 alpha:0.92];
+        self.layer.cornerRadius = 12.0; self.layer.masksToBounds = YES;
+
+        [self addSubview:self.textViewInternal];
+        [self addSubview:self.closeButton];
+
+        [self.textViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(self.mas_left).offset(0);
+            make.right.equalTo(self.mas_right).offset(0);
+            make.bottom.equalTo(self.mas_bottom).offset(0);
+            make.top.equalTo(self.mas_top).offset(0);
+        }];
+
+        [self.closeButton mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.top.equalTo(self.mas_top).offset(8);
+            make.right.equalTo(self.mas_right).offset(-8);
+            make.height.mas_equalTo(28);
+            make.width.mas_greaterThanOrEqualTo(56);
+        }];
+        _pendingText = [NSMutableString string];
+        _charsPerTick = 2; // 每次输出 1~2 个字符，可以自己调
+        _streamDidReceiveDone = NO;
+
+    }
+    return self;
+}
+
+- (KBStreamTextView *)textViewInternal {
+    if (!_textViewInternal) {
+        _textViewInternal = [[KBStreamTextView alloc] init];
+    }
+    return _textViewInternal;
+}
+
+- (UIButton *)closeButton {
+    if (!_closeButton) {
+        UIButton *del = [UIButton buttonWithType:UIButtonTypeSystem];
+        del.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.35];
+        del.layer.cornerRadius = 14; del.layer.masksToBounds = YES;
+        del.titleLabel.font = [UIFont systemFontOfSize:13 weight:UIFontWeightSemibold];
+        [del setTitle:KBLocalized(@"common_back") forState:UIControlStateNormal];
+        [del setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
+        [del addTarget:self action:@selector(onTapClose) forControlEvents:UIControlEventTouchUpInside];
+        _closeButton = del;
+    }
+    return _closeButton;
+}
+
+- (void)onTapClose {
+    if ([self.delegate respondsToSelector:@selector(streamOverlayDidTapClose:)]) {
+        [self.delegate streamOverlayDidTapClose:self];
+    }
+}
+
+- (void)appendChunk:(NSString *)text {
+    if (text.length == 0) return;
+    if (![NSThread isMainThread]) {
+        __weak typeof(self) weakSelf = self;
+        dispatch_async(dispatch_get_main_queue(), ^{
+            [weakSelf appendChunk:text];
+        });
+        return;
+    }
+
+    [self.pendingText appendString:text];
+    [self startStreamTimerIfNeeded];
+}
+
+- (void)startStreamTimerIfNeeded {
+    if (self.streamTimer) return;
+    self.streamTimer = [NSTimer scheduledTimerWithTimeInterval:0.02
+                                                        target:self
+                                                      selector:@selector(handleStreamTick)
+                                                      userInfo:nil
+                                                       repeats:YES];
+}
+
+- (void)stopStreamTimer {
+    [self.streamTimer invalidate];
+    self.streamTimer = nil;
+}
+
+- (void)handleStreamTick {
+    if (self.pendingText.length == 0) {
+        // 如果已经收到 done 并且没有待播内容了，这里再真正 finish
+        if (self.streamDidReceiveDone) {
+            [self.textViewInternal finishStreaming];
+        }
+        [self stopStreamTimer];
+        return;
+    }
+
+    NSInteger len = MIN(self.charsPerTick, self.pendingText.length);
+    NSString *slice = [self.pendingText substringToIndex:len];
+    [self.pendingText deleteCharactersInRange:NSMakeRange(0, len)];
+
+    [self.textViewInternal appendStreamText:slice];
+}
+
+
+- (void)finish {
+    if (![NSThread isMainThread]) {
+        __weak typeof(self) weakSelf = self;
+        dispatch_async(dispatch_get_main_queue(), ^{
+            [weakSelf finish];
+        });
+        return;
+    }
+
+    // 只标记“流已结束”
+    self.streamDidReceiveDone = YES;
+
+    // 如果此时已经没有待播内容了，可以立即结束
+    if (self.pendingText.length == 0) {
+        [self stopStreamTimer];
+        [self.textViewInternal finishStreaming];
+    }
+    // 否则等 handleStreamTick 把 pendingText 慢慢播完，
+    // 它看到 pendingText == 0 且 streamDidReceiveDone == YES 时会自动调用 finishStreaming
+}
+
+
+
+- (KBStreamTextView *)textView { return self.textViewInternal; }
+
+@end

CustomKeyboard/View/KBFullAccessGuideView.m

@@ -5,10 +5,15 @@
 
 #import "KBFullAccessGuideView.h"
 #import "Masonry.h"
+#import "KBResponderUtils.h" // 统一查找 UIInputViewController 的工具
+#import "KBHUD.h"
+#import "KBHostAppLauncher.h"
 
 @interface KBFullAccessGuideView ()
 @property (nonatomic, strong) UIControl *backdrop;
 @property (nonatomic, strong) UIView *card;
+// 预先保存当前键盘控制器，避免运行时通过响应链找不到
+@property (nonatomic, weak) UIInputViewController *ivc;
 @end
 
 @implementation KBFullAccessGuideView
@@ -42,7 +47,7 @@
     }];
     
     UILabel *title = [UILabel new];
-    title.text = @"开启【允许完全访问】，体验完整功能";
+    title.text = KBLocalized(@"Turn on Allow Full Access to experience all features");
     title.font = [UIFont boldSystemFontOfSize:16];
     title.textColor = [UIColor blackColor];
     title.textAlignment = NSTextAlignmentCenter;
@@ -64,8 +69,8 @@
         make.height.mas_equalTo(100);
     }];
     
-    UILabel *row1 = [UILabel new]; row1.text = @"恋爱键盘"; row1.textColor = [UIColor blackColor];
-    UILabel *row2 = [UILabel new]; row2.text = @"允许完全访问"; row2.textColor = [UIColor blackColor];
+    UILabel *row1 = [UILabel new]; row1.text = AppName; row1.textColor = [UIColor blackColor];
+    UILabel *row2 = [UILabel new]; row2.text = KBLocalized(@"Allow Full Access"); row2.textColor = [UIColor blackColor];
     [box addSubview:row1]; [box addSubview:row2];
     [row1 mas_makeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(box).offset(16); make.top.equalTo(box).offset(14); }];
     UIView *line = [UIView new]; line.backgroundColor = [UIColor colorWithWhite:0.9 alpha:1.0];
@@ -93,7 +98,7 @@
     
     UIButton *go = [UIButton buttonWithType:UIButtonTypeSystem];
     go.backgroundColor = [UIColor blackColor];
-    [go setTitle:@"去开启" forState:UIControlStateNormal];
+    [go setTitle:KBLocalized(@"Go enable") forState:UIControlStateNormal];
     [go setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
     go.titleLabel.font = [UIFont boldSystemFontOfSize:18];
     go.layer.cornerRadius = 12;
@@ -109,7 +114,8 @@
 }
 
 - (void)presentIn:(UIView *)parent {
-    UIView *container = parent.window ?: parent;
+    if (!parent) return;
+    UIView *container = parent; // 关键：加到键盘视图树中，而不是 window
     self.frame = container.bounds;
     self.alpha = 0;
     [container addSubview:self];
@@ -125,15 +131,19 @@
 
 + (void)showInView:(UIView *)parent {
     if (!parent) return;
-    // 避免重复
-    for (UIView *v in (parent.window ?: parent).subviews) {
+    // 避免重复（仅在 parent 层级检查）
+    for (UIView *v in parent.subviews) {
         if ([v isKindOfClass:[KBFullAccessGuideView class]]) return;
     }
-    [[KBFullAccessGuideView build] presentIn:parent];
+    KBFullAccessGuideView *view = [KBFullAccessGuideView build];
+    // 预取 ivc
+    view.ivc = KBFindInputViewController(parent);
+    [view presentIn:parent];
 }
 
 + (void)dismissFromView:(UIView *)parent {
-    UIView *container = parent.window ?: parent;
+    UIView *container = parent;
+    if (!container) return;
     for (UIView *v in container.subviews) {
         if ([v isKindOfClass:[KBFullAccessGuideView class]]) {
             [(KBFullAccessGuideView *)v dismiss];
@@ -146,40 +156,21 @@
 
 #pragma mark - Actions
 
-- (UIInputViewController *)kb_findInputController {
-    UIResponder *res = self;
-    while (res) {
-        if ([res isKindOfClass:[UIInputViewController class]]) {
-            return (UIInputViewController *)res;
-        }
-        res = res.nextResponder;
-    }
-    return nil;
-}
-
+// 工具方法已提取到 KBResponderUtils.h
+// 打开主 App，引导用户去系统设置开启完全访问：通过宿主 UIApplication + 自定义 Scheme 拉起。
 - (void)onTapGoEnable {
-    // 在扩展中无法使用 UIApplication。改为委托宿主打开链接：
-    // 方案：优先拉起主 App 并由主 App 打开设置页，避免宿主拦截。
-    UIInputViewController *ivc = [self kb_findInputController];
-    if (!ivc) { [self dismiss]; return; }
+    UIInputViewController *ivc = KBFindInputViewController(self);
+    // 找不到键盘控制器也可以尝试从自身 responder 链出发
+    UIResponder *start = ivc.view ?: (UIResponder *)self;
 
-    // 先尝试 Universal Link（如未配置可改为你的域名），失败再用自定义 scheme。
-    NSURL *ul = [NSURL URLWithString:[NSString stringWithFormat:@"%@?src=kb_extension", KB_UL_SETTINGS]];
-    void (^fallback)(void) = ^{
-        NSURL *scheme = [NSURL URLWithString:@"kbkeyboard://settings?src=kb_extension"]; // 主App在 openURL 中处理
-        [ivc.extensionContext openURL:scheme completionHandler:^(__unused BOOL ok2) {
-            // 无论成功与否，都收起当前提示层，避免遮挡
-            [self dismiss];
-        }];
-    };
-    
-    if (ul) {
-        [ivc.extensionContext openURL:ul completionHandler:^(BOOL ok) {
-            if (ok) { [self dismiss]; }
-            else { fallback(); }
-        }];
+    // 自定义 Scheme（AppDelegate 中处理 kbkeyboardAppExtension://settings）
+    NSURL *scheme = [NSURL URLWithString:[NSString stringWithFormat:@"%@@//settings?src=kb_extension", KB_APP_SCHEME]];
+    BOOL ok = [KBHostAppLauncher openHostAppURL:scheme fromResponder:start];
+    if (ok) {
+        [self dismiss];
     } else {
-        fallback();
+        NSString *showInfo = [NSString stringWithFormat:KBLocalized(@"Follow: Settings → General → Keyboard → Keyboards → %@ → Allow Full Access"),AppName];
+        [KBHUD showInfo:showInfo];
     }
 }
 @end

CustomKeyboard/View/KBFunctionBarView.h

@@ -9,7 +9,9 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-/// 功能区顶部的Bar：左侧4个按钮，右侧3个按钮
+/// 功能区顶部的 Bar：
+/// 左侧：App 图标按钮（点击可回到主 App 或打开更多功能）
+/// 右侧：升级 VIP 按钮
 @class KBFunctionBarView;
 
 @protocol KBFunctionBarViewDelegate <NSObject>
@@ -24,15 +26,15 @@ NS_ASSUME_NONNULL_BEGIN
 
 @property (nonatomic, weak, nullable) id<KBFunctionBarViewDelegate> delegate;
 
-/// 左侧4个按钮（懒加载创建，等宽水平排布）
+/// 左侧按钮（当前只有一个：App 图标）
 @property (nonatomic, strong, readonly) NSArray<UIButton *> *leftButtons;
 
-/// 右侧3个按钮（懒加载创建，等宽水平排布，靠右）
+/// 右侧按钮（当前只有一个：升级 VIP）
 @property (nonatomic, strong, readonly) NSArray<UIButton *> *rightButtons;
 
-/// 配置按钮标题（可选）
-@property (nonatomic, copy) NSArray<NSString *> *leftTitles;   // 默认 @[@"帮回", @"会说", @"话术", @"更多"]
-@property (nonatomic, copy) NSArray<NSString *> *rightTitles;  // 默认 @[@"❤", @"收藏", @"宫格"]
+/// 预留的标题配置（目前按钮主要以图片为主，可选）
+@property (nonatomic, copy) NSArray<NSString *> *leftTitles;
+@property (nonatomic, copy) NSArray<NSString *> *rightTitles;
 
 @end
 

CustomKeyboard/View/KBFunctionBarView.m

@@ -7,12 +7,14 @@
 
 #import "KBFunctionBarView.h"
 #import "Masonry.h"
+#import "KBResponderUtils.h" // 查找 UIInputViewController，用于系统切换输入法
 
 @interface KBFunctionBarView ()
 @property (nonatomic, strong) UIView *leftContainer;   // 左侧按钮容器
 @property (nonatomic, strong) UIView *rightContainer;  // 右侧按钮容器
 @property (nonatomic, strong) NSArray<UIButton *> *leftButtonsInternal;
 @property (nonatomic, strong) NSArray<UIButton *> *rightButtonsInternal;
+@property (nonatomic, strong) UIButton *globeButtonInternal;    // 可选：系统“切换输入法”键
 @end
 
 @implementation KBFunctionBarView
@@ -20,8 +22,9 @@
 - (instancetype)initWithFrame:(CGRect)frame{
     if (self = [super initWithFrame:frame]) {
         self.backgroundColor = [UIColor clearColor];
-        _leftTitles = @[@"ABC"];
-        _rightTitles = @[@"Upgrade VIP"];
+        // 标题字段暂时不用，预留给后续可能的文案按钮
+        _leftTitles = @[];
+        _rightTitles = @[];
         [self buildUI];
     }
     return self;
@@ -36,83 +39,63 @@
 #pragma mark - UI
 
 - (void)buildUI {
-    // 左右两个容器，方便分别布局
+    // 左右容器 + 可选地球键
+    [self addSubview:self.globeButtonInternal];
     [self addSubview:self.leftContainer];
     [self addSubview:self.rightContainer];
 
+    // 右侧：升级 VIP 按钮（使用资源图 upgrad_vip_icon，设计尺寸 115x35）
     [self.rightContainer mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.right.equalTo(self.mas_right).offset(-12);
+        make.right.equalTo(self.mas_right).offset(-6);
         make.centerY.equalTo(self.mas_centerY);
-        make.height.mas_equalTo(36);
+        make.width.mas_equalTo(115);
+        make.height.mas_equalTo(35);
     }];
 
-    [self.leftContainer mas_makeConstraints:^(MASConstraintMaker *make) {
+    UIButton *vipButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    vipButton.tag = 200; // 右侧 index = 0
+    UIImage *vipImage = [UIImage imageNamed:@"upgrad_vip_icon"];
+    [vipButton setImage:vipImage forState:UIControlStateNormal];
+    vipButton.imageView.contentMode = UIViewContentModeScaleAspectFit;
+    vipButton.adjustsImageWhenHighlighted = YES;
+    [vipButton addTarget:self action:@selector(onRightTap:) forControlEvents:UIControlEventTouchUpInside];
+    [self.rightContainer addSubview:vipButton];
+    [vipButton mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.edges.equalTo(self.rightContainer);
+    }];
+    self.rightButtonsInternal = @[vipButton];
+
+    // 左侧地球键（按需显示，由 kb_refreshGlobeVisibility 控制是否展示）
+    [self.globeButtonInternal mas_makeConstraints:^(MASConstraintMaker *make) {
         make.left.equalTo(self.mas_left).offset(12);
-        make.right.equalTo(self.rightContainer.mas_left).offset(-12);
         make.centerY.equalTo(self.mas_centerY);
+        make.width.height.mas_equalTo(32);
+    }];
+
+    // 左侧：App 图标按钮（使用资源图 App_icon，图标 34x34，按钮容器 36x36）
+    [self.leftContainer mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.centerY.equalTo(self.mas_centerY);
+        make.width.mas_equalTo(36);
         make.height.mas_equalTo(36);
+        make.left.equalTo(self.mas_left).offset(12); // 具体偏移在 kb_refreshGlobeVisibility 中会根据地球键重新设置
     }];
 
-    // 左侧4个等宽按钮
-    NSMutableArray<UIButton *> *leftBtns = [NSMutableArray arrayWithCapacity:4];
-    UIView *prev = nil;
-    for (NSInteger i = 0; i < self.leftTitles.count; i++) {
-        UIButton *btn = [self buildButtonWithTitle:(i < self.leftTitles.count ? self.leftTitles[i] : [NSString stringWithFormat:@"L%ld", (long)i])];
-        btn.tag = 100 + i;
-        [btn addTarget:self action:@selector(onLeftTap:) forControlEvents:UIControlEventTouchUpInside];
-        [self.leftContainer addSubview:btn];
-        [btn mas_makeConstraints:^(MASConstraintMaker *make) {
-            if (prev) {
-                make.left.equalTo(prev.mas_right).offset(8);
-                make.width.equalTo(prev);
-            } else {
-                make.left.equalTo(self.leftContainer.mas_left);
-            }
-            make.top.bottom.equalTo(self.leftContainer);
-        }];
-        prev = btn;
-        [leftBtns addObject:btn];
-    }
-    [prev mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.right.equalTo(self.leftContainer.mas_right);
+    UIButton *appButton = [UIButton buttonWithType:UIButtonTypeCustom];
+    appButton.tag = 100; // 左侧 index = 0
+    UIImage *appImage = [UIImage imageNamed:@"App_icon"];
+    [appButton setImage:appImage forState:UIControlStateNormal];
+    appButton.imageView.contentMode = UIViewContentModeScaleAspectFit;
+    appButton.adjustsImageWhenHighlighted = YES;
+    [appButton addTarget:self action:@selector(onLeftTap:) forControlEvents:UIControlEventTouchUpInside];
+    [self.leftContainer addSubview:appButton];
+    [appButton mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.center.equalTo(self.leftContainer);
+        make.width.height.mas_equalTo(34); // 设计图尺寸
     }];
-    self.leftButtonsInternal = leftBtns.copy;
+    self.leftButtonsInternal = @[appButton];
 
-    // 右侧N个按钮（靠右、两两等宽）
-    NSMutableArray<UIButton *> *rightBtns = [NSMutableArray arrayWithCapacity:3];
-    for (NSInteger i = 0; i < self.rightTitles.count; i++) {
-        UIButton *btn = [self buildButtonWithTitle:(i < self.rightTitles.count ? self.rightTitles[i] : [NSString stringWithFormat:@"R%ld", (long)i])];
-        btn.tag = 200 + i;
-        [self.rightContainer addSubview:btn];
-        [btn addTarget:self action:@selector(onRightTap:) forControlEvents:UIControlEventTouchUpInside];
-        [rightBtns addObject:btn];
-    }
-
-    // 从右往左链式布局，保证整体靠右；支持 1/2/3... 任意数量
-    UIView *prevRight = nil; // 指向右侧已布局的按钮
-    for (NSInteger i = rightBtns.count - 1; i >= 0; i--) {
-        UIButton *btn = rightBtns[i];
-        [btn mas_makeConstraints:^(MASConstraintMaker *make) {
-            if (!prevRight) {
-                // 最右侧按钮贴右
-                make.right.equalTo(self.rightContainer.mas_right);
-            } else {
-                // 其余按钮紧挨左侧兄弟，且与其等宽
-                make.right.equalTo(prevRight.mas_left).offset(-8);
-                make.width.equalTo(prevRight);
-            }
-            make.top.bottom.equalTo(self.rightContainer);
-        }];
-        prevRight = btn;
-    }
-    // 最左侧一个不超出容器左边（允许根据内容自然宽度收缩）
-    if (prevRight) {
-        [prevRight mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.left.greaterThanOrEqualTo(self.rightContainer.mas_left);
-        }];
-    }
-
-    self.rightButtonsInternal = rightBtns.copy;
+    // 初始刷新地球键可见性与事件绑定
+    [self kb_refreshGlobeVisibility];
 }
 
 #pragma mark - Actions
@@ -131,17 +114,6 @@
     }
 }
 
-- (UIButton *)buildButtonWithTitle:(NSString *)title {
-    UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
-    btn.layer.cornerRadius = 18;
-    btn.layer.masksToBounds = YES;
-    btn.backgroundColor = [UIColor colorWithWhite:1 alpha:0.9];
-    btn.titleLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
-    [btn setTitle:title forState:UIControlStateNormal];
-    [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
-    return btn;
-}
-
 #pragma mark - Lazy
 
 - (UIView *)leftContainer {
@@ -158,4 +130,56 @@
     return _rightContainer;
 }
 
+- (UIButton *)globeButtonInternal {
+    if (!_globeButtonInternal) {
+        _globeButtonInternal = [UIButton buttonWithType:UIButtonTypeSystem];
+        _globeButtonInternal.layer.cornerRadius = 16;
+        _globeButtonInternal.layer.masksToBounds = YES;
+        _globeButtonInternal.backgroundColor = [UIColor colorWithWhite:1 alpha:0.9];
+        [_globeButtonInternal setTitle:@"🌐" forState:UIControlStateNormal];
+        [_globeButtonInternal setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
+    }
+    return _globeButtonInternal;
+}
+
+#pragma mark - Globe (Input Mode Switch)
+
+- (void)kb_refreshGlobeVisibility {
+    UIInputViewController *ivc = KBFindInputViewController(self);
+    BOOL needSwitchKey = YES;
+    if (ivc && [ivc respondsToSelector:@selector(needsInputModeSwitchKey)]) {
+        needSwitchKey = ivc.needsInputModeSwitchKey;
+    }
+
+    self.globeButtonInternal.hidden = !needSwitchKey;
+
+    // 左容器左约束：根据是否显示地球键动态调整
+    [self.leftContainer mas_remakeConstraints:^(MASConstraintMaker *make) {
+        if (needSwitchKey) {
+            make.left.equalTo(self.globeButtonInternal.mas_right).offset(8);
+        } else {
+            make.left.equalTo(self.mas_left).offset(12);
+        }
+        make.centerY.equalTo(self.mas_centerY);
+        make.width.mas_equalTo(36);
+        make.height.mas_equalTo(36);
+    }];
+
+    // 绑定系统输入法切换事件
+    [self.globeButtonInternal removeTarget:nil action:NULL forControlEvents:UIControlEventAllEvents];
+    if (needSwitchKey && ivc) {
+        SEL sel = NSSelectorFromString(@"handleInputModeListFromView:withEvent:");
+        if ([ivc respondsToSelector:sel]) {
+            [self.globeButtonInternal addTarget:ivc action:sel forControlEvents:UIControlEventAllTouchEvents];
+        } else {
+            [self.globeButtonInternal addTarget:ivc action:@selector(advanceToNextInputMode) forControlEvents:UIControlEventTouchUpInside];
+        }
+    }
+}
+
+- (void)didMoveToWindow {
+    [super didMoveToWindow];
+    [self kb_refreshGlobeVisibility];
+}
+
 @end

CustomKeyboard/View/KBFunctionPasteView.h

@@ -11,13 +11,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 /// 粘贴提示输入框区域（左侧图标+占位文案，圆角白底）
 @interface KBFunctionPasteView : UIView
-
-/// 左侧图标
-@property (nonatomic, strong, readonly) UIImageView *iconView;
-
-/// 提示文案，例如：点击粘贴TA的话
-@property (nonatomic, strong, readonly) UILabel *placeholderLabel;
-
+@property (nonatomic, strong) UIButton *pasBtn;
 @end
 
 NS_ASSUME_NONNULL_END

CustomKeyboard/View/KBFunctionPasteView.m

@@ -7,10 +7,12 @@
 
 #import "KBFunctionPasteView.h"
 #import "Masonry.h"
+#import "KBFont.h"
 
 @interface KBFunctionPasteView ()
-@property (nonatomic, strong) UIImageView *iconViewInternal;
-@property (nonatomic, strong) UILabel *placeholderLabelInternal;
+//@property (nonatomic, strong) UIImageView *iconViewInternal;
+//@property (nonatomic, strong) UILabel *placeholderLabelInternal;
+
 @end
 
 @implementation KBFunctionPasteView
@@ -22,54 +24,64 @@
         self.layer.cornerRadius = 12.0;
         self.layer.masksToBounds = YES;
 
-        [self addSubview:self.iconViewInternal];
-        [self addSubview:self.placeholderLabelInternal];
+//        [self addSubview:self.iconViewInternal];
+//        [self addSubview:self.placeholderLabelInternal];
+        [self addSubview:self.pasBtn];
+        [self.pasBtn mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.edges.equalTo(self);
+        }];
+
+//        [self.iconViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
+//            make.left.equalTo(self.mas_left).offset(12);
+//            make.centerY.equalTo(self.mas_centerY);
+//            make.width.height.mas_equalTo(20);
+//        }];
+//        [self.placeholderLabelInternal mas_makeConstraints:^(MASConstraintMaker *make) {
+//            make.left.equalTo(self.iconViewInternal.mas_right).offset(8);
+//            make.right.equalTo(self.mas_right).offset(-12);
+//            make.centerY.equalTo(self.mas_centerY);
+//        }];
         
-        [self.iconViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.left.equalTo(self.mas_left).offset(12);
-            make.centerY.equalTo(self.mas_centerY);
-            make.width.height.mas_equalTo(20);
-        }];
-        [self.placeholderLabelInternal mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.left.equalTo(self.iconViewInternal.mas_right).offset(8);
-            make.right.equalTo(self.mas_right).offset(-12);
-            make.centerY.equalTo(self.mas_centerY);
-        }];
     }
     return self;
 }
 
 #pragma mark - Lazy
+//
+//- (UIImageView *)iconViewInternal {
+//    if (!_iconViewInternal) {
+//        _iconViewInternal = [[UIImageView alloc] init];
+//        _iconViewInternal.image = [UIImage imageNamed:@"kb_zt_icon"];
+//    }
+//    return _iconViewInternal;
+//}
+//
+//- (UILabel *)placeholderLabelInternal {
+//    if (!_placeholderLabelInternal) {
+//        _placeholderLabelInternal = [[UILabel alloc] init];
+//        // 文案改为更贴近设计稿
+//        _placeholderLabelInternal.text = KBLocalized(@"Paste Ta's Words");
+//        _placeholderLabelInternal.textColor = [UIColor colorWithRed:0.20 green:0.64 blue:0.54 alpha:1.0];
+//        _placeholderLabelInternal.font = [UIFont systemFontOfSize:16 weight:UIFontWeightMedium];
+//    }
+//    return _placeholderLabelInternal;
+//}
 
-- (UIImageView *)iconViewInternal {
-    if (!_iconViewInternal) {
-        _iconViewInternal = [[UIImageView alloc] init];
-        // 用简单的系统表情代替资源图（项目可替换成实际图片）
-        UILabel *emoji = [[UILabel alloc] init];
-        emoji.text = @"📋"; // 粘贴/剪贴板含义
-        emoji.font = [UIFont systemFontOfSize:18];
-        emoji.textAlignment = NSTextAlignmentCenter;
-        [_iconViewInternal addSubview:emoji];
-        [emoji mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.edges.equalTo(_iconViewInternal);
-        }];
+- (UIButton *)pasBtn{
+    if (!_pasBtn) {
+        _pasBtn = [UIButton buttonWithType:UIButtonTypeCustom];
+        [_pasBtn setImage:[UIImage imageNamed:@"kb_zt_icon"] forState:UIControlStateNormal];
+        [_pasBtn setTitle:KBLocalized(@"   Paste Ta's Words") forState:UIControlStateNormal];
+        [_pasBtn setTitleColor:[UIColor colorWithHex:0x02BEAC] forState:UIControlStateNormal];
+        _pasBtn.titleLabel.font = [KBFont medium:13];
+        _pasBtn.backgroundColor = [UIColor whiteColor];
     }
-    return _iconViewInternal;
-}
-
-- (UILabel *)placeholderLabelInternal {
-    if (!_placeholderLabelInternal) {
-        _placeholderLabelInternal = [[UILabel alloc] init];
-        _placeholderLabelInternal.text = @"点击粘贴TA的话";
-        _placeholderLabelInternal.textColor = [UIColor colorWithRed:0.20 green:0.64 blue:0.54 alpha:1.0];
-        _placeholderLabelInternal.font = [UIFont systemFontOfSize:16 weight:UIFontWeightMedium];
-    }
-    return _placeholderLabelInternal;
+    return _pasBtn;
 }
 
 #pragma mark - Expose
 
-- (UIImageView *)iconView { return self.iconViewInternal; }
-- (UILabel *)placeholderLabel { return self.placeholderLabelInternal; }
+//- (UIImageView *)iconView { return self.iconViewInternal; }
+//- (UILabel *)placeholderLabel { return self.placeholderLabelInternal; }
 
 @end

CustomKeyboard/View/KBFunctionTagCell.h

@@ -6,7 +6,7 @@
 //  话术标签Cell：左图标+右标题，圆角灰白底
 
 #import <UIKit/UIKit.h>
-
+#import "KBTagItemModel.h"
 NS_ASSUME_NONNULL_BEGIN
 
 @interface KBFunctionTagCell : UICollectionViewCell
@@ -17,7 +17,13 @@ NS_ASSUME_NONNULL_BEGIN
 /// 头像/图标
 @property (nonatomic, strong, readonly) UIImageView *iconView;
 
+
+@property (nonatomic, strong) KBTagItemModel *itemModel;
+
+
+/// 显示/隐藏加载指示（小菊花）
+- (void)setLoading:(BOOL)loading;
+
 @end
 
 NS_ASSUME_NONNULL_END
-

CustomKeyboard/View/KBFunctionTagCell.m

@@ -9,8 +9,9 @@
 #import "Masonry.h"
 
 @interface KBFunctionTagCell ()
+@property (nonatomic, strong) UILabel *emojiLabel;
 @property (nonatomic, strong) UILabel *titleLabelInternal;
-@property (nonatomic, strong) UIImageView *iconViewInternal;
+@property (nonatomic, strong) UIActivityIndicatorView *loadingView;
 @end
 
 @implementation KBFunctionTagCell
@@ -21,53 +22,102 @@
         self.contentView.layer.cornerRadius = 12;
         self.contentView.layer.masksToBounds = YES;
 
-        [self.contentView addSubview:self.iconViewInternal];
-        [self.contentView addSubview:self.titleLabelInternal];
+        // 小菊花：默认隐藏，放在整体内容右侧偏内的位置
+        [self.contentView addSubview:self.loadingView];
+        [self.loadingView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.center.equalTo(self.contentView);
+            make.width.height.mas_equalTo(16);
+        }];
 
-        [self.iconViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.left.equalTo(self.contentView.mas_left).offset(10);
+        // 中心容器：将 icon + title 组合整体水平居中
+        UIView *centerContainer = [[UIView alloc] init];
+        centerContainer.backgroundColor = [UIColor clearColor];
+        [self.contentView addSubview:centerContainer];
+        [centerContainer mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.centerX.equalTo(self.contentView.mas_centerX);
             make.centerY.equalTo(self.contentView.mas_centerY);
+            make.left.greaterThanOrEqualTo(self.contentView.mas_left).offset(6);
+            make.right.lessThanOrEqualTo(self.contentView).offset(-6);
+        }];
+
+        [centerContainer addSubview:self.emojiLabel];
+        [centerContainer addSubview:self.titleLabelInternal];
+
+        [self.emojiLabel mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.equalTo(centerContainer.mas_left);
+            make.centerY.equalTo(centerContainer.mas_centerY);
+            // 留出一点余量，避免 emoji 字形在右侧被裁剪
             make.width.height.mas_equalTo(24);
         }];
         [self.titleLabelInternal mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.left.equalTo(self.iconViewInternal.mas_right).offset(6);
-            make.right.equalTo(self.contentView.mas_right).offset(-10);
-            make.centerY.equalTo(self.contentView.mas_centerY);
+            make.left.equalTo(self.emojiLabel.mas_right).offset(3);
+            make.top.equalTo(centerContainer.mas_top);
+            make.bottom.equalTo(centerContainer.mas_bottom);
+            make.right.equalTo(centerContainer.mas_right);
         }];
     }
     return self;
 }
 
+- (void)setItemModel:(KBTagItemModel *)itemModel{
+    _itemModel = itemModel;
+    self.emojiLabel.text = itemModel.emoji;
+    self.titleLabelInternal.text = itemModel.characterName;
+}
+
 #pragma mark - Lazy
 
-- (UIImageView *)iconViewInternal {
-    if (!_iconViewInternal) {
-        _iconViewInternal = [[UIImageView alloc] init];
-        UILabel *emoji = [[UILabel alloc] init];
-        emoji.text = @"🙂"; // 占位图标
-        emoji.textAlignment = NSTextAlignmentCenter;
-        emoji.font = [UIFont systemFontOfSize:20];
-        [_iconViewInternal addSubview:emoji];
-        [emoji mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.edges.equalTo(_iconViewInternal);
-        }];
+- (UILabel *)emojiLabel {
+    if (!_emojiLabel) {
+        _emojiLabel = [[UILabel alloc] init];
+        _emojiLabel.textAlignment = NSTextAlignmentCenter;
+        _emojiLabel.font = [KBFont medium:20];
+        _emojiLabel.adjustsFontSizeToFitWidth = YES;
+
     }
-    return _iconViewInternal;
+    return _emojiLabel;
 }
 
 - (UILabel *)titleLabelInternal {
     if (!_titleLabelInternal) {
         _titleLabelInternal = [[UILabel alloc] init];
-        _titleLabelInternal.font = [UIFont systemFontOfSize:15 weight:UIFontWeightSemibold];
-        _titleLabelInternal.textColor = [UIColor blackColor];
+        _titleLabelInternal.font = [KBFont medium:10];
+        _titleLabelInternal.textColor = [UIColor colorWithHex:0x1B1F1A];
+        // 最多两行，文本过长时末尾截断
+        _titleLabelInternal.numberOfLines = 2;
+        _titleLabelInternal.lineBreakMode = NSLineBreakByTruncatingTail;
     }
     return _titleLabelInternal;
 }
 
+#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 130000
+static UIActivityIndicatorViewStyle KBSpinnerStyle(void) { return UIActivityIndicatorViewStyleMedium; }
+#else
+static UIActivityIndicatorViewStyle KBSpinnerStyle(void) { return UIActivityIndicatorViewStyleGray; }
+#endif
+
+- (UIActivityIndicatorView *)loadingView {
+    if (!_loadingView) {
+        _loadingView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:KBSpinnerStyle()];
+        _loadingView.hidesWhenStopped = YES;
+        _loadingView.color = [UIColor grayColor];
+        _loadingView.hidden = YES;
+    }
+    return _loadingView;
+}
+
 #pragma mark - Expose
 
 - (UILabel *)titleLabel { return self.titleLabelInternal; }
-- (UIImageView *)iconView { return self.iconViewInternal; }
+
+- (void)setLoading:(BOOL)loading {
+    if (loading) {
+        self.loadingView.hidden = NO;
+        [self.loadingView startAnimating];
+    } else {
+        [self.loadingView stopAnimating];
+        self.loadingView.hidden = YES;
+    }
+}
 
 @end
-

CustomKeyboard/View/KBFunctionView.h

@@ -11,6 +11,9 @@
 @protocol KBFunctionViewDelegate <NSObject>
 @optional
 - (void)functionView:(KBFunctionView *_Nullable)functionView didTapToolActionAtIndex:(NSInteger)index;
+- (void)functionView:(KBFunctionView *_Nullable)functionView didRightTapToolActionAtIndex:(NSInteger)index;
+- (void)functionViewDidRequestSubscription:(KBFunctionView *_Nullable)functionView;
+
 @end
 
 NS_ASSUME_NONNULL_BEGIN
@@ -33,6 +36,9 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, strong, readonly) UIButton *clearButton;  // 右侧-清空
 @property (nonatomic, strong, readonly) UIButton *sendButton;   // 右侧-发送
 
+/// 应用当前皮肤（更新背景/强调色）
+- (void)kb_applyTheme;
+
 @end
 
 NS_ASSUME_NONNULL_END

CustomKeyboard/View/KBFunctionView.m

@@ -6,6 +6,7 @@
 //
 
 #import "KBFunctionView.h"
+#import "KBResponderUtils.h" // 统一查找 UIInputViewController 的工具
 #import "KBFunctionBarView.h"
 #import "KBFunctionPasteView.h"
 #import "KBFunctionTagCell.h"
@@ -13,46 +14,121 @@
 #import <MBProgressHUD.h>
 #import "KBFullAccessGuideView.h"
 #import "KBFullAccessManager.h"
+#import "KBSkinManager.h"
+#import "KBAuthManager.h"          // 登录态判断（共享钥匙串）
+#import "KBULBridgeNotification.h"             // Darwin 通知常量（UL 已处理）
+#import "KBHostAppLauncher.h"
+#import "KBStreamTextView.h"  // 流式文本视图
+#import "KBStreamOverlayView.h" // 带关闭按钮的流式层
+#import "KBFunctionTagListView.h"
+#import "WJXEventSource.h"
+#import "KBTagItemModel.h"
+#import <MJExtension/MJExtension.h>
+#import "KBBizCode.h"
+#import "KBBackspaceLongPressHandler.h"
+#import "KBBackspaceUndoManager.h"
 
-static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
-
-@interface KBFunctionView () <UICollectionViewDataSource, UICollectionViewDelegateFlowLayout, KBFunctionBarViewDelegate>
+@interface KBFunctionView () <KBFunctionBarViewDelegate, KBStreamOverlayViewDelegate, KBFunctionTagListViewDelegate>
 // UI
 @property (nonatomic, strong) KBFunctionBarView *barViewInternal;
 @property (nonatomic, strong) KBFunctionPasteView *pasteViewInternal;
-@property (nonatomic, strong) UICollectionView *collectionViewInternal;
+@property (nonatomic, strong) KBFunctionTagListView *tagListView;
 @property (nonatomic, strong) UIView *rightButtonContainer; // 右侧竖排按钮容器
 @property (nonatomic, strong) UIButton *pasteButtonInternal;
 @property (nonatomic, strong) UIButton *deleteButtonInternal;
 @property (nonatomic, strong) UIButton *clearButtonInternal;
 @property (nonatomic, strong) UIButton *sendButtonInternal;
 
+// 叠层：流式文本视图 + 关闭按钮
+@property (nonatomic, strong, nullable) KBStreamOverlayView *streamOverlay;
+
+// 网络流式（封装）
+@property (nonatomic, strong, nullable) WJXEventSource *eventSource;
+@property (nonatomic, assign) BOOL streamHasOutput; // 是否已输出过正文（首段去首个 \t 用）
+@property (nonatomic, strong, nullable) NSNumber *loadingTagIndex; // 当前显示loading的标签index
+@property (nonatomic, copy, nullable) NSString *loadingTagTitle;
+@property (nonatomic, assign) BOOL eventSourceDidReceiveDone;
+@property (nonatomic, copy, nullable) NSString *eventSourceSplitPrefix;
+
 // Data
-@property (nonatomic, strong) NSArray<NSString *> *itemsInternal;
+//@property (nonatomic, strong) NSArray<NSString *> *itemsInternal;
+@property (nonatomic, strong) NSMutableArray<KBTagItemModel *> *modelArray;
 
 // 剪贴板自动检测
 @property (nonatomic, strong) NSTimer *pasteboardTimer;    // 轮询定时器（轻量、主线程）
 @property (nonatomic, assign) NSInteger lastHandledPBCount; // 上次处理过的 changeCount，避免重复弹窗
+
+// UL 双路兜底
+@property (nonatomic, assign) NSUInteger kb_ulSeq;      // 当前 UL 发起序号
+@property (nonatomic, assign) BOOL kb_ulHandledFlag;    // 主 App 已确认处理 UL
+@property (nonatomic, strong) KBBackspaceLongPressHandler *backspaceHandler;
 @end
 
 @implementation KBFunctionView
 
 - (instancetype)initWithFrame:(CGRect)frame {
     if (self = [super initWithFrame:frame]) {
-        // 整体绿色背景（接近截图效果，项目可自行替换素材）
-        self.backgroundColor = [UIColor colorWithRed:0.77 green:0.93 blue:0.82 alpha:1.0];
+        // 背景使用当前主题强调色
+        [self kb_applyTheme];
+        self.backspaceHandler = [[KBBackspaceLongPressHandler alloc] initWithContainerView:self];
 
         [self setupUI];
-        [self reloadDemoData];
+//        [self reloadDemoData];
+        [self kb_reloadTagsFromSharedDefaults];
+
 
         // 初始化剪贴板监控状态
         _lastHandledPBCount = [UIPasteboard generalPasteboard].changeCount;
+
+        // 监听“完全访问”状态变化，动态启停剪贴板监控，避免在未开完全访问时触发 TCC/XPC 错误日志
+        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(kb_fullAccessChanged) name:KBFullAccessChangedNotification object:nil];
+
+        // 监听主 App 的 Darwin 确认（UL 已处理）
+        CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(),
+                                        (__bridge const void *)(self),
+                                        KBULDarwinCallback,
+                                        (__bridge CFStringRef)KBDarwinULHandled,
+                                        NULL,
+                                        CFNotificationSuspensionBehaviorDeliverImmediately);
     }
     return self;
 }
 
+#pragma mark - Data
+
+/// 从 App Group 的 NSUserDefaults 中读取真实 JSON，解析为 model + 标签文案
+- (void)kb_reloadTagsFromSharedDefaults {
+    NSUserDefaults *sharedDefaults = [[NSUserDefaults alloc] initWithSuiteName:AppGroup];
+    NSDictionary *jsonDict = [sharedDefaults objectForKey:AppGroup_MyKbJson];
+    if (jsonDict != nil) {
+        id dataObj = jsonDict[@"data"];
+        NSArray<KBTagItemModel *> *modelList = [KBTagItemModel mj_objectArrayWithKeyValuesArray:(NSArray *)dataObj];
+        if (modelList.count > 0) {
+            self.modelArray = [NSMutableArray array];
+            [self.modelArray addObjectsFromArray:modelList];
+//            [self.collectionView reloadData];
+            [self.tagListView setItems:self.modelArray];
+        }
+    }else{
+        NSLog(@"json❎");
+    }
+}
+
+
+#pragma mark - Theme
+
+- (void)kb_applyTheme {
+//    KBSkinManager *mgr = [KBSkinManager shared];
+//    UIColor *accent = mgr.current.accentColor ?: [UIColor colorWithRed:0.77 green:0.93 blue:0.82 alpha:1.0];
+//    BOOL hasImg = ([mgr currentBackgroundImage] != nil);
+    self.backgroundColor = [UIColor colorWithHex:0xD0D3DA];
+}
+
 - (void)dealloc {
     [self stopPasteboardMonitor];
+    [self kb_stopNetworkStreaming];
+    [[NSNotificationCenter defaultCenter] removeObserver:self];
+    CFNotificationCenterRemoveObserver(CFNotificationCenterGetDarwinNotifyCenter(), (__bridge const void *)(self), (__bridge CFStringRef)KBDarwinULHandled, NULL);
 }
 
 #pragma mark - UI
@@ -60,19 +136,24 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 - (void)setupUI {
     // 1. 顶部 Bar
     [self addSubview:self.barViewInternal];
+    CGFloat barTopInset = KBFit(6.0f);
+    CGFloat barHeight = KBFit(52.0f);
     [self.barViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
         make.left.right.equalTo(self);
-        make.top.equalTo(self.mas_top).offset(6);
-        make.height.mas_equalTo(48);
+        make.top.equalTo(self.mas_top).offset(barTopInset);
+        make.height.mas_equalTo(barHeight);
     }];
 
     // 右侧竖排按钮容器
     [self addSubview:self.rightButtonContainer];
+    CGFloat rightInset = KBFit(4.0f);
+    CGFloat containerBottomInset = KBFit(10.0f);
+    CGFloat containerWidth = KBFit(60.0f);
     [self.rightButtonContainer mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.right.equalTo(self.mas_right).offset(-12);
-        make.top.equalTo(self.barViewInternal.mas_bottom).offset(8);
-        make.bottom.equalTo(self.mas_bottom).offset(-10);
-        make.width.mas_equalTo(72);
+        make.right.equalTo(self.mas_right).offset(-rightInset);
+        make.top.equalTo(self.barViewInternal.mas_bottom).offset(0);
+        make.bottom.equalTo(self.mas_bottom).offset(0);
+        make.width.mas_equalTo(containerWidth);
     }];
 
     // 右侧四个按钮
@@ -81,14 +162,12 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
     [self.rightButtonContainer addSubview:self.clearButtonInternal];
     [self.rightButtonContainer addSubview:self.sendButtonInternal];
 
-    // 竖向排布：粘贴、删除、清空为等高，发送略高
-    CGFloat smallH = 44;
-    CGFloat bigH = 56;
-    CGFloat vSpace = 10;
+    // 竖向排布：容器内四个按钮等高分配，间距为 8px（按设计稿等比缩放）
+    CGFloat smallH = KBFit(41.0f);
+    CGFloat vSpace = KBFit(8.0f);
     [self.pasteButtonInternal mas_makeConstraints:^(MASConstraintMaker *make) {
         make.top.equalTo(self.rightButtonContainer.mas_top);
         make.left.right.equalTo(self.rightButtonContainer);
-        make.height.mas_equalTo(smallH);
     }];
     [self.deleteButtonInternal mas_makeConstraints:^(MASConstraintMaker *make) {
         make.top.equalTo(self.pasteButtonInternal.mas_bottom).offset(vSpace);
@@ -103,92 +182,497 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
     [self.sendButtonInternal mas_makeConstraints:^(MASConstraintMaker *make) {
         make.top.equalTo(self.clearButtonInternal.mas_bottom).offset(vSpace);
         make.left.right.equalTo(self.rightButtonContainer);
-        make.height.mas_equalTo(bigH);
-        make.bottom.lessThanOrEqualTo(self.rightButtonContainer.mas_bottom); // 底部可伸缩
+        make.height.equalTo(self.pasteButtonInternal);
+        make.bottom.equalTo(self.rightButtonContainer.mas_bottom);
     }];
 
     // 2. 粘贴区（位于右侧按钮左侧）
     [self addSubview:self.pasteViewInternal];
     [self.pasteViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.left.equalTo(self.mas_left).offset(12);
-        make.right.equalTo(self.rightButtonContainer.mas_left).offset(-12);
-        make.top.equalTo(self.barViewInternal.mas_bottom).offset(8);
-        make.height.mas_equalTo(48);
+        make.left.equalTo(self.mas_left).offset(vSpace);
+        make.right.equalTo(self.rightButtonContainer.mas_left).offset(-vSpace);
+        make.top.equalTo(self.barViewInternal.mas_bottom).offset(0);
+        make.height.mas_equalTo(smallH);
     }];
+    // 点击整个粘贴卡片按钮，行为与右侧「Paste」按钮保持一致
+    [self.pasteViewInternal.pasBtn addTarget:self action:@selector(onTapPaste) forControlEvents:UIControlEventTouchUpInside];
 
-    // 3. CollectionView
-    [self addSubview:self.collectionViewInternal];
-    [self.collectionViewInternal mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.left.equalTo(self.mas_left).offset(12);
-        make.right.equalTo(self.rightButtonContainer.mas_left).offset(-12);
-        make.top.equalTo(self.pasteViewInternal.mas_bottom).offset(10);
-        make.bottom.equalTo(self.mas_bottom).offset(-10);
+    // 3. Tag List View
+    [self addSubview:self.tagListView];
+    [self.tagListView mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.pasteViewInternal);
+        make.right.equalTo(self.rightButtonContainer.mas_left).offset(-vSpace);
+        make.top.equalTo(self.pasteViewInternal.mas_bottom).offset(vSpace);
+        make.bottom.equalTo(self.mas_bottom).offset(0);
     }];
 }
 
 #pragma mark - Data
 
-- (void)reloadDemoData {
-    // 演示数据（可由外部替换）
-    self.itemsInternal = @[@"高情商", @"暖味拉扯", @"风趣幽默", @"撩女生", @"社交惬匿", @"情场高手", @"一枚暖男", @"聊天搭子", @"表达爱意", @"更多话术"];    
-    [self.collectionViewInternal reloadData];
+//- (void)reloadDemoData {
+//    // 演示数据（可由外部替换）
+//    self.itemsInternal = @[KBLocalized(@"Warm hearted man"),
+//                           KBLocalized(@"Warm2 hearted man"),
+//                           KBLocalized(@"Warm3 hearted man"),
+//                           KBLocalized(@"撩女生啊u发顺丰大师傅"),
+//                           KBLocalized(@"Warm = man"),
+//                           KBLocalized(@"Warm hearted man"),
+//                           KBLocalized(@"一枚暖男发放"),
+//                           KBLocalized(@"聊天搭子"),
+//                           KBLocalized(@"表达爱意"),
+//                           KBLocalized(@"更多话术")];
+//    [self.tagListView setItems:self.itemsInternal];
+//}
+
+// UICollectionView 逻辑已下沉至 KBFunctionTagListView
+
+- (void)kb_showStreamTextViewIfNeededWithTitle:(NSString *)title {
+    // 已有则不重复创建
+    if (self.streamOverlay.superview) { return; }
+
+    // 隐藏标签列表，使用同一区域展示流式文本
+    self.tagListView.hidden = YES;
+
+    KBStreamOverlayView *overlay = [[KBStreamOverlayView alloc] init];
+    overlay.delegate = (id)self;
+    [self addSubview:overlay];
+    [overlay mas_makeConstraints:^(MASConstraintMaker *make) {
+        // 在原标签区域内展示流式文本，右侧继续保留竖排按钮栏
+        CGFloat vSpace = KBFit(4.0f);
+        CGFloat overlayTopInset = KBFit(10.0f);
+        CGFloat overlayBottomInset = KBFit(10.0f);
+        make.left.equalTo(self.pasteViewInternal);
+        make.right.equalTo(self).offset(-vSpace);
+        make.top.equalTo(self.pasteViewInternal.mas_bottom).offset(overlayTopInset);
+        make.bottom.equalTo(self.mas_bottom).offset(-overlayBottomInset);
+    }];
+    // 仅隐藏删除/清空/发送按钮，保留“Paste”按钮可用
+    self.pasteButtonInternal.hidden = NO;
+    self.deleteButtonInternal.hidden = YES;
+    self.clearButtonInternal.hidden = YES;
+    self.sendButtonInternal.hidden = YES;
+    // 适当缩小内部左右留白，进一步提升可用宽度
+    overlay.textView.contentHorizontalPadding = 8.0;
+    self.streamOverlay = overlay;
+
+    // 只创建 UI；网络在点击 cell 时启动，避免重复 start 导致首包重复
 }
 
-#pragma mark - UICollectionView
-
-- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
-    return self.itemsInternal.count;
+- (void)kb_onTapStreamDelete {
+    // 关闭并销毁流式视图，恢复标签列表
+    [self kb_stopNetworkStreaming];
+    [self.streamOverlay removeFromSuperview];
+    self.streamOverlay = nil;
+    self.tagListView.hidden = NO;
+    // 恢复右侧按钮栏的全部按钮
+    self.pasteButtonInternal.hidden = NO;
+    self.deleteButtonInternal.hidden = NO;
+    self.clearButtonInternal.hidden = NO;
+    self.sendButtonInternal.hidden = NO;
 }
 
-- (__kindof UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
-    KBFunctionTagCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:kKBFunctionTagCellId forIndexPath:indexPath];
-    cell.titleLabel.text = self.itemsInternal[indexPath.item];
-    return cell;
+// 叠层关闭回调
+- (void)streamOverlayDidTapClose:(KBStreamOverlayView *)overlay {
+    [self kb_onTapStreamDelete];
 }
 
-- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
-    // 三列等宽
-    CGFloat totalW = collectionView.bounds.size.width;
-    CGFloat space = 10.0;
-    NSInteger columns = 3;
-    CGFloat width = floor((totalW - space * (columns - 1)) / columns);
-    return CGSizeMake(width, 48);
+
+#pragma mark - Network Streaming (WJXEventSource)
+
+- (void)kb_startNetworkStreamingWithSeed:(NSString *)seedTitle {
+    [self kb_stopNetworkStreaming];
+    if (![[KBFullAccessManager shared] hasFullAccess]) { return; }
+
+    NSString *apiUrl = [NSString stringWithFormat:@"%@%@", KB_BASE_URL, API_AI_TALK];
+    NSURL *url = [NSURL URLWithString:apiUrl];
+    if (!url) { return; }
+
+    NSInteger characterId = 0;
+    if (self.loadingTagIndex != nil) {
+        NSInteger idx = self.loadingTagIndex.integerValue;
+        if (idx >= 0 && idx < self.modelArray.count) {
+            KBTagItemModel *model = self.modelArray[idx];
+            characterId = model.characterId;
+        }
+    }
+    NSInteger resolvedCharacterId = (characterId > 0) ? characterId : 75;
+    NSString *message = seedTitle.length > 0 ? seedTitle : @"aliqua non cupidatat";
+//    message = [NSString stringWithFormat:@"%@%d",message,arc4random() % 10000];
+    NSDictionary *payload = @{
+        @"characterId": @(resolvedCharacterId),
+        @"message": message
+    };
+    NSLog(@"[KBFunction] request payload: %@", payload);
+    NSError *bodyError = nil;
+    NSData *bodyData = [NSJSONSerialization dataWithJSONObject:payload options:0 error:&bodyError];
+    if (bodyError || bodyData.length == 0) {
+        NSLog(@"[KBFunction] build body failed: %@", bodyError);
+        return;
+    }
+
+    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60];
+    request.HTTPMethod = @"POST";
+    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
+    NSString *token = KBAuthManager.shared.current.accessToken ?: @"";
+    if (token.length > 0) {
+        [request setValue:token forHTTPHeaderField:@"auth-token"];
+    }
+    request.HTTPBody = bodyData;
+
+    self.streamHasOutput = NO;
+    self.eventSourceSplitPrefix = nil;
+    self.eventSourceDidReceiveDone = NO;
+
+    __weak typeof(self) weakSelf = self;
+    WJXEventSource *source = [[WJXEventSource alloc] initWithRquest:request];
+    source.ignoreRetryAction = YES;
+    [source addListener:^(WJXEvent * _Nonnull event) {
+        __strong typeof(weakSelf) self = weakSelf; if (!self) return;
+        [self kb_handleEventSourceMessage:event];
+    } forEvent:WJXEventNameMessage queue:NSOperationQueue.mainQueue];
+    [source addListener:^(WJXEvent * _Nonnull event) {
+        __strong typeof(weakSelf) self = weakSelf; if (!self) return;
+        [self kb_handleEventSourceError:event.error];
+    } forEvent:WJXEventNameError queue:NSOperationQueue.mainQueue];
+    self.eventSource = source;
+    [self.eventSource open];
 }
 
-- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
-    return 10.0;
+- (void)kb_stopNetworkStreaming {
+    [self.eventSource close];
+    self.eventSource = nil;
+    self.eventSourceSplitPrefix = nil;
+    self.eventSourceDidReceiveDone = NO;
+    self.streamHasOutput = NO;
 }
 
-- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
-    return 12.0;
+- (void)kb_handleEventSourceMessage:(WJXEvent *)event {
+    if (event.data.length == 0) { return; }
+    NSLog(@"[KBStream] SSE raw payload: %@", event.data);
+    NSData *jsonData = [event.data dataUsingEncoding:NSUTF8StringEncoding];
+    if (!jsonData) { return; }
+    NSError *error = nil;
+    NSDictionary *payload = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
+    if (error || ![payload isKindOfClass:[NSDictionary class]]) { return; }
+    if ([self kb_handleBizErrorIfNeeded:payload]) { return; }
+    NSString *type = payload[@"type"];
+    if (![type isKindOfClass:[NSString class]]) { return; }
+
+    if ([type isEqualToString:@"llm_chunk"]) {
+        NSString *chunk = [self kb_normalizedLLMChunkString:payload[@"data"]];
+        if (chunk.length > 0) {
+            [self kb_appendChunkToStreamView:chunk];
+        }
+        return;
+    }
+    if ([type isEqualToString:@"search_result"]) {
+        NSString *text = [self kb_formattedSearchResultString:payload[@"data"]];
+        if (text.length > 0) {
+            [self kb_appendChunkToStreamView:text];
+        }
+        return;
+    }
+    if ([type isEqualToString:@"done"]) {
+        self.eventSourceDidReceiveDone = YES;
+        [self kb_finishEventSourceWithError:nil];
+        return;
+    }
 }
 
-// 用户点击功能标签：优先 UL 拉起主App，失败再 Scheme；两次都失败则提示开启完全访问
+- (void)kb_handleEventSourceError:(NSError * _Nullable)error {
+    if (self.eventSourceDidReceiveDone) { return; }
+    [self kb_finishEventSourceWithError:error];
+}
+
+- (void)kb_finishEventSourceWithError:(NSError * _Nullable)error {
+    [self.eventSource close];
+    self.eventSource = nil;
+    if (!self.streamHasOutput && self.loadingTagIndex) {
+        [self.tagListView setLoading:NO atIndex:self.loadingTagIndex.integerValue];
+        self.loadingTagIndex = nil;
+        self.loadingTagTitle = nil;
+    }
+    BOOL shouldShowError = (error != nil);
+    if (shouldShowError) {
+        [KBHUD showInfo:error.localizedDescription ?: KBLocalized(@"拉取失败")];
+    }
+    if (self.streamOverlay) {
+        [self.streamOverlay finish];
+    }
+    self.eventSourceSplitPrefix = nil;
+    self.eventSourceDidReceiveDone = NO;
+}
+
+- (BOOL)kb_handleBizErrorIfNeeded:(NSDictionary *)payload {
+    NSInteger code = KBBizCodeFromJSONObject(payload);
+    if (code == NSNotFound || code == KBBizCodeSuccess) {
+        return NO;
+    }
+    BOOL needSubscriptionGuide = (code == KBBizCodeQuotaExhausted);
+    NSString *msg = KBBizMessageFromJSONObject(payload);
+    if (msg.length == 0) {
+        msg = KBLocalized(@"拉取失败");
+    }
+    NSError *bizError = [NSError errorWithDomain:@"KBStreamBizError"
+                                            code:code
+                                        userInfo:@{NSLocalizedDescriptionKey: msg}];
+    [self kb_finishEventSourceWithError:bizError];
+    if (needSubscriptionGuide) {
+        [self kb_requestSubscriptionGuide];
+    }
+    return YES;
+}
+
+- (void)kb_requestSubscriptionGuide {
+    if ([self.delegate respondsToSelector:@selector(functionViewDidRequestSubscription:)]) {
+        [self.delegate functionViewDidRequestSubscription:self];
+    }
+}
+
+#pragma mark - Event Parsing
+
+- (NSString *)kb_normalizedLLMChunkString:(id)dataValue {
+    if (![dataValue isKindOfClass:[NSString class]]) { return @""; }
+    NSString *text = (NSString *)dataValue;
+
+    // 1. 处理上一个包遗留的 <SPLIT> 前缀（比如 "<SP" + "LIT>"）
+    if (self.eventSourceSplitPrefix.length > 0) {
+        text = [self.eventSourceSplitPrefix stringByAppendingString:text ?: @""];
+        self.eventSourceSplitPrefix = nil;
+    }
+    if (text.length == 0) { return @""; }
+
+    // 2. 去掉开头多余换行（避免一开始就空一大块）
+    while (text.length > 0) {
+        unichar c0 = [text characterAtIndex:0];
+        if (c0 == '\n' || c0 == '\r') {
+            text = [text substringFromIndex:1];
+            continue;
+        }
+        break;
+    }
+    if (text.length == 0) { return @""; }
+
+    // 3. 处理结尾可能是不完整的 "<SPLIT" 之类，先截掉，放到下一个包里拼
+    NSString *suffix = [self kb_pendingSplitSuffixForString:text];
+    if (suffix.length > 0) {
+        self.eventSourceSplitPrefix = suffix;
+        text = [text substringToIndex:text.length - suffix.length];
+    }
+    if (text.length == 0) { return @""; }
+
+    // 4. 处理完整的 <SPLIT>，变成段落分隔符 \t
+    text = [text stringByReplacingOccurrencesOfString:@"<SPLIT>" withString:@"\t"];
+
+    // 不再做其它替换，不合并 /t、不改行，只把真正内容原样丢给 UI
+    return text;
+}
+
+
+- (NSString *)kb_formattedSearchResultString:(id)dataValue {
+    // data 不是数组就直接返回空串
+    if (![dataValue isKindOfClass:[NSArray class]]) { return @""; }
+    NSArray *list = (NSArray *)dataValue;
+
+    NSMutableArray<NSString *> *segments = [NSMutableArray array];
+
+    [list enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
+        NSString *payload = nil;
+
+        if ([obj isKindOfClass:[NSDictionary class]]) {
+            id val = obj[@"payload"];
+            if ([val isKindOfClass:[NSString class]]) {
+                payload = (NSString *)val;
+            }
+        } else if ([obj isKindOfClass:[NSString class]]) {
+            // 兼容后端直接给字符串数组的情况
+            payload = (NSString *)obj;
+        }
+
+        payload = [payload stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
+        if (payload.length > 0) {
+            // 每一个 payload 就是一段
+            [segments addObject:payload];
+        }
+    }];
+
+    if (segments.count == 0) { return @""; }
+
+    // 用 \t 拼起来，KBStreamTextView 会按 \t 拆成多个 label
+    NSMutableString *result = [NSMutableString string];
+
+    [segments enumerateObjectsUsingBlock:^(NSString * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
+        // 每段前面加一个 \t，保证是新的一段
+        [result appendFormat:@"\t%@", obj];
+    }];
+
+    return result;
+}
+
+
+- (NSString *)kb_pendingSplitSuffixForString:(NSString *)text {
+    static NSString * const token = @"<SPLIT>";
+    if (text.length == 0) { return @""; }
+    NSUInteger tokenLen = token.length;
+    if (tokenLen <= 1) { return @""; }
+    NSUInteger maxLen = MIN(tokenLen - 1, text.length);
+    for (NSUInteger len = maxLen; len > 0; len--) {
+        NSString *suffix = [text substringFromIndex:text.length - len];
+        NSString *prefix = [token substringToIndex:len];
+        if ([suffix isEqualToString:prefix]) {
+            return suffix;
+        }
+    }
+    return @"";
+}
+
+#pragma mark - Helpers
+
+/// 统一处理需要输出到 KBStreamTextView 的分片：
+/// - 已将 `<SPLIT>` 转换为 `\t` 并去掉多余换行
+/// - 这里仅负责附加到视图与标记首段状态，避免 UI 抖动
+- (void)kb_appendChunkToStreamView:(NSString *)chunk {
+    if (chunk.length == 0) return;
+    // 第一次有数据才创建 overlay，并取消 cell 上的小菊花
+    if (!self.streamOverlay) {
+        [self kb_showStreamTextViewIfNeededWithTitle:self.loadingTagTitle ?: @""];
+        if (self.loadingTagIndex) {
+            [self.tagListView setLoading:NO atIndex:self.loadingTagIndex.integerValue];
+            self.loadingTagIndex = nil; self.loadingTagTitle = nil;
+        }
+    }
+    if (!self.streamOverlay) return;
+    [self.streamOverlay appendChunk:chunk];
+    self.streamHasOutput = YES;
+}
+
+/// 统一更新左侧粘贴按钮的展示：
+/// - 有粘贴文本：只显示文字，不再展示左侧图标；
+/// - 无粘贴文本：恢复原始图标 + 占位文案。
+- (void)kb_updatePasteButtonWithDisplayText:(NSString * _Nullable)text {
+    if (text.length > 0) {
+        NSString *displayText = text;
+        if (displayText.length > 30) {
+            displayText = [[displayText substringToIndex:30] stringByAppendingString:@"…"];
+        }
+        [self.pasteView.pasBtn setImage:nil forState:UIControlStateNormal];
+        [self.pasteView.pasBtn setTitle:displayText forState:UIControlStateNormal];
+    } else {
+        UIImage *img = [UIImage imageNamed:@"kb_zt_icon"];
+        [self.pasteView.pasBtn setImage:img forState:UIControlStateNormal];
+        [self.pasteView.pasBtn setTitle:KBLocalized(@"   Paste Ta's Words") forState:UIControlStateNormal];
+    }
+}
+
+#pragma mark - KBFunctionTagListViewDelegate
+
+- (void)tagListView:(KBFunctionTagListView *)view didSelectIndex:(NSInteger)index title:(NSString *)title {
+    // 1) 先判断权限：未开启“完全访问”则走引导逻辑
+    if (![[KBFullAccessManager shared] hasFullAccess]) {
+        // 未开启完全访问：保持原有引导路径
+        [KBHUD showInfo:KBLocalized(@"处理中…")];
+        [[KBFullAccessManager shared] ensureFullAccessOrGuideInView:self];
+        return;
+    }
+
+    // 2) 权限没问题，再判断是否登录：未登录 -> 直接拉起主 App，由主 App 负责完成登录
+    if (!KBAuthManager.shared.isLoggedIn) {
+        
+        
+        UIInputViewController *ivc = KBFindInputViewController(self);
+
+       NSString *schemeStr = [NSString stringWithFormat:@"%@://login?src=keyboard", KB_APP_SCHEME];
+       NSURL *scheme = [NSURL URLWithString:schemeStr];
+       // 从当前视图作为起点，通过响应链找到 UIApplication 再调起主 App
+       BOOL ok = [KBHostAppLauncher openHostAppURL:scheme fromResponder:ivc.view];
+        return;
+//        if (!ivc) return;
+//        NSString *encodedTitle = [title stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]] ?: @"";
+//        NSURL *ul = [NSURL URLWithString:[NSString stringWithFormat:@"%@?src=functionView&index=%ld&title=%@", KB_UL_LOGIN, (long)index, encodedTitle]];
+//        if (!ul) return;
+//        // 发起 UL，不依赖 ok 结果
+//        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.05 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+//            [ivc.extensionContext openURL:ul completionHandler:^(__unused BOOL ok) {}];
+//        });
+//        // 双路兜底：500ms 内未收到主 App 确认，则回退到自定义 Scheme（通过宿主 UIApplication 打开）
+//        self.kb_ulHandledFlag = NO;
+//        NSUInteger token = ++self.kb_ulSeq;
+//        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+//            if (token != self.kb_ulSeq) return;      // 已有新请求覆盖
+//            if (self.kb_ulHandledFlag) return;       // 主 App 已确认处理
+//            NSURL *scheme = [NSURL URLWithString:[NSString stringWithFormat:@"%@://login?src=functionView&index=%ld&title=%@", KB_APP_SCHEME, (long)index, encodedTitle]];
+//            if (!scheme) return;
+//            UIResponder *start = ivc.view ?: (UIResponder *)self;
+//            // 让键盘失去焦点
+//            [ivc dismissKeyboard];
+//            BOOL ok = [KBHostAppLauncher openHostAppURL:scheme fromResponder:start];
+//            if (!ok) {
+//                [KBHUD showInfo:KBLocalized(@"请切换到主App完成登录")];
+//            }else{
+//              
+//            }
+//        });
+//        return;
+    }
+    BOOL hasPasteText = ![self.pasteView.pasBtn.currentTitle isEqualToString:KBLocalized(@"   Paste Ta's Words")];
+//    BOOL hasPasteText = (self.pasteView.pasBtn.imageView.image == nil);
+    if (!hasPasteText) {
+        [KBHUD showInfo:KBLocalized(@"Please copy the text first")];
+        return;
+    }
+    NSString *copyTitle = self.pasteView.pasBtn.currentTitle;
+    // 3) 已登录：开始业务逻辑（展示加载并拉取流式内容）
+    [self.tagListView setLoading:YES atIndex:index];
+    self.loadingTagIndex = @(index);
+    self.loadingTagTitle = title ?: @"";
+    [self kb_startNetworkStreamingWithSeed:copyTitle];
+    return;
+}
+
+// Darwin 回调：主 App 已处理 UL
+static void KBULDarwinCallback(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo) {
+    KBFunctionView *self_ = (__bridge KBFunctionView *)observer;
+    if (!self_) return;
+    dispatch_async(dispatch_get_main_queue(), ^{ self_.kb_ulHandledFlag = YES; });
+}
+
+// 用户点击功能标签：优先 UL 拉起主App，失败再 Scheme；两次都失败则提示开启完全访问。
+// 若已开启“完全访问”，则直接在键盘侧创建 KBStreamTextView，并在其右上角提供删除按钮关闭。
 - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
+    // 权限全部打开（键盘已启用 + 完全访问）。在扩展进程中仅需判断“完全访问”。
+    if ([[KBFullAccessManager shared] hasFullAccess]) {
+        KBTagItemModel *selModel = self.modelArray[indexPath.item];
+        [self kb_showStreamTextViewIfNeededWithTitle:selModel.characterName];
+        return;
+    }
 
-    [KBHUD showInfo:@"处理中…"];
-//    return;
+    [KBHUD showInfo:KBLocalized(@"处理中…")];
 
-    UIInputViewController *ivc = [self findInputViewController];
+    UIInputViewController *ivc = KBFindInputViewController(self);
     if (!ivc) return;
 
-    NSString *title = (indexPath.item < self.itemsInternal.count) ? self.itemsInternal[indexPath.item] : @"";
+    NSString *title = self.modelArray[indexPath.item].characterName;
     NSString *encodedTitle = [title stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]] ?: @"";
 
     NSURL *ul = [NSURL URLWithString:[NSString stringWithFormat:@"%@?src=functionView&index=%ld&title=%@", KB_UL_LOGIN, (long)indexPath.item, encodedTitle]];
     if (!ul) return;
 
     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.05 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        // 先尝试通过 extensionContext 打开 UL
         [ivc.extensionContext openURL:ul completionHandler:^(BOOL ok) {
-            if (ok) return; // Universal Link 成功
-
-            NSURL *scheme = [NSURL URLWithString:[NSString stringWithFormat:@"kbkeyboard://login?src=functionView&index=%ld&title=%@", (long)indexPath.item, encodedTitle]];
-            [ivc.extensionContext openURL:scheme completionHandler:^(BOOL ok2) {
-                if (!ok2) {
-                    // 两条路都失败：大概率未开完全访问或宿主拦截。统一交由 Manager 引导。
-                    dispatch_async(dispatch_get_main_queue(), ^{ [[KBFullAccessManager shared] ensureFullAccessOrGuideInView:self]; });
-                }
-            }];
+            if (ok) {
+                return;
+            }
+            // UL 失败时，再通过宿主 UIApplication + 自定义 Scheme 兜底
+            NSURL *scheme = [NSURL URLWithString:[NSString stringWithFormat:@"%@@//login?src=functionView&index=%ld&title=%@", KB_APP_SCHEME, (long)indexPath.item, encodedTitle]];
+            UIResponder *start = ivc.view ?: (UIResponder *)self;
+            BOOL ok2 = [KBHostAppLauncher openHostAppURL:scheme fromResponder:start];
+            if (!ok2) {
+                // 两条路都失败：大概率未开完全访问或宿主拦截。统一交由 Manager 引导。
+                dispatch_async(dispatch_get_main_queue(), ^{
+                    [[KBFullAccessManager shared] ensureFullAccessOrGuideInView:self];
+                });
+            }
         }];
     });
 }
@@ -201,18 +685,31 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
     // - iOS16+ 会在跨 App 首次读取时自动弹出系统权限弹窗；
     // - iOS15 及以下不会弹窗，直接返回内容；
     // 注意：不要在非用户触发的时机主动读取（如 viewDidLoad），否则会造成“立刻弹窗”的体验。
+    // 权限全部打开（键盘已启用 + 完全访问）。在扩展进程中仅需判断“完全访问”。
+    if (![[KBFullAccessManager shared] hasFullAccess]) {
+        // 未开启完全访问：保持原有引导路径
+        [[KBFullAccessManager shared] ensureFullAccessOrGuideInView:self];
+        return;
+    }
     UIPasteboard *pb = [UIPasteboard generalPasteboard];
     NSString *text = pb.string; // 读取纯文本（可能触发系统粘贴权限弹窗）
 
-    if (text.length > 0) {
-        // 将粘贴内容展示到左侧“粘贴区”的占位文案上
-        self.pasteView.placeholderLabel.text = text;
-        // 如果需要多行展示，可按需放开（高度由外部约束决定，默认一行会截断）
-        // self.pasteView.placeholderLabel.numberOfLines = 0;
-    } else {
+    if (text.length <= 0) {
         // 无可用文本或用户拒绝了粘贴权限；保持占位文案不变
         NSLog(@"粘贴板无可用文本或未授权粘贴");
+        [KBHUD showInfo:KBLocalized(@"Clipboard is empty")];
+        return;
     }
+
+    // 1）把内容真正「粘贴」到当前输入框
+//    UIInputViewController *ivc = KBFindInputViewController(self);
+//    if (ivc) {
+//        id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
+//        [proxy insertText:text];
+//    }
+
+    // 2）顺便把最新的剪贴板内容展示在左侧粘贴区按钮上，便于用户确认
+    [self kb_updatePasteButtonWithDisplayText:text];
 }
 
 #pragma mark - 自动监控剪贴板（复制即弹窗）
@@ -224,8 +721,10 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 // - 无论允许/拒绝，都把本次 changeCount 记为已处理，避免一直重复询问。
 
 - (void)startPasteboardMonitor {
+    // 未开启“完全访问”时不做自动读取，避免宿主/系统拒绝并刷错误日志
+    if (![[KBFullAccessManager shared] hasFullAccess]) return;
     if (self.pasteboardTimer) return;
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     self.pasteboardTimer = [NSTimer scheduledTimerWithTimeInterval:0.5 repeats:YES block:^(NSTimer * _Nonnull timer) {
         __strong typeof(weakSelf) self = weakSelf; if (!self) return;
         UIPasteboard *pb = [UIPasteboard generalPasteboard];
@@ -235,9 +734,8 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 
         // 实际读取触发系统弹窗（iOS16+）
         NSString *text = pb.string;
-        if (text.length > 0) {
-            self.pasteView.placeholderLabel.text = text;
-        }
+        // 有文字 -> 仅展示文字；无文字/非文本 -> 恢复图标 + 原占位文案
+        [self kb_updatePasteButtonWithDisplayText:text];
     }];
 }
 
@@ -248,51 +746,46 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 
 - (void)didMoveToWindow {
     [super didMoveToWindow];
-    if (self.window && !self.isHidden) {
-        [self startPasteboardMonitor];
-    } else {
-        [self stopPasteboardMonitor];
-    }
+    [self kb_refreshPasteboardMonitor];
 }
 
 - (void)setHidden:(BOOL)hidden {
     BOOL wasHidden = self.isHidden;
     [super setHidden:hidden];
     if (wasHidden != hidden) {
-        if (!hidden && self.window) {
-            [self startPasteboardMonitor];
-        } else {
-            [self stopPasteboardMonitor];
-        }
+        [self kb_refreshPasteboardMonitor];
     }
 }
-- (void)onTapDelete {
+
+// 根据窗口可见性与完全访问状态，统一启停粘贴板监控
+- (void)kb_refreshPasteboardMonitor {
+    BOOL visible = (self.window && !self.isHidden);
+    if (visible && [[KBFullAccessManager shared] hasFullAccess]) {
+        [self startPasteboardMonitor];
+    } else {
+        [self stopPasteboardMonitor];
+    }
+}
+
+- (void)kb_fullAccessChanged {
+    dispatch_async(dispatch_get_main_queue(), ^{ [self kb_refreshPasteboardMonitor]; });
+}
+    - (void)onTapDelete {
     NSLog(@"点击：删除");
-    UIInputViewController *ivc = [self findInputViewController];
+    [[KBBackspaceUndoManager shared] registerNonClearAction];
+    UIInputViewController *ivc = KBFindInputViewController(self);
     id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
     [proxy deleteBackward];
 }
 - (void)onTapClear {
     NSLog(@"点击：清空");
-    // 连续删除：仅清空光标之前的输入（不改动 pasteView 的内容）
-    UIInputViewController *ivc = [self findInputViewController];
-    id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
-    // 逐批读取 documentContextBeforeInput 并删除，避免 50 字符窗口限制带来的残留
-    NSInteger guard = 0; // 上限保护，避免极端情况下长时间阻塞
-    while (guard < 10000) {
-        NSString *before = proxy.documentContextBeforeInput ?: @"";
-        NSInteger count = before.length;
-        if (count <= 0) { break; } // 光标前已无内容
-        for (NSInteger i = 0; i < count; i++) {
-            [proxy deleteBackward];
-        }
-        guard += count;
-    }
+    [self.backspaceHandler performClearAction];
 }
-- (void)onTapSend {
+    - (void)onTapSend {
     NSLog(@"点击：发送");
+    [[KBBackspaceUndoManager shared] registerNonClearAction];
     // 发送：插入换行。大多数聊天类 App 会把回车视为“发送”
-    UIInputViewController *ivc = [self findInputViewController];
+    UIInputViewController *ivc = KBFindInputViewController(self);
     id<UITextDocumentProxy> proxy = ivc.textDocumentProxy;
     [proxy insertText:@"\n"];
 }
@@ -318,6 +811,9 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 
 - (void)functionBarView:(KBFunctionBarView *)bar didTapRightAtIndex:(NSInteger)index {
     // 右侧按钮点击，如收藏/宫格等，按需继续向外抛出（这里暂不定义单独协议方法，可在此内部处理或扩展）
+    if ([self.delegate respondsToSelector:@selector(functionView:didRightTapToolActionAtIndex:)]) {
+        [self.delegate functionView:self didRightTapToolActionAtIndex:index];
+    }
 }
 
 - (KBFunctionPasteView *)pasteViewInternal {
@@ -327,17 +823,12 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
     return _pasteViewInternal;
 }
 
-- (UICollectionView *)collectionViewInternal {
-    if (!_collectionViewInternal) {
-        UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
-        layout.sectionInset = UIEdgeInsetsZero; // 外边距交由约束控制
-        _collectionViewInternal = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
-        _collectionViewInternal.backgroundColor = [UIColor clearColor];
-        _collectionViewInternal.dataSource = self;
-        _collectionViewInternal.delegate = self;
-        [_collectionViewInternal registerClass:[KBFunctionTagCell class] forCellWithReuseIdentifier:kKBFunctionTagCellId];
+- (KBFunctionTagListView *)tagListView {
+    if (!_tagListView) {
+        _tagListView = [[KBFunctionTagListView alloc] init];
+        _tagListView.delegate = (id)self;
     }
-    return _collectionViewInternal;
+    return _tagListView;
 }
 
 - (UIView *)rightButtonContainer {
@@ -349,11 +840,11 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 }
 
 - (UIButton *)buildRightButtonWithTitle:(NSString *)title color:(UIColor *)color {
-    UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
+    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
     btn.backgroundColor = color;
-    btn.layer.cornerRadius = 12.0;
+    btn.layer.cornerRadius = 8.0;
     btn.layer.masksToBounds = YES;
-    btn.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold];
+    btn.titleLabel.font = [KBFont medium:13];
     [btn setTitle:title forState:UIControlStateNormal];
     [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
     return btn;
@@ -361,7 +852,7 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 
 - (UIButton *)pasteButtonInternal {
     if (!_pasteButtonInternal) {
-        _pasteButtonInternal = [self buildRightButtonWithTitle:@"粘贴" color:[UIColor colorWithRed:0.13 green:0.73 blue:0.60 alpha:1.0]];
+        _pasteButtonInternal = [self buildRightButtonWithTitle:KBLocalized(@"Paste") color:[UIColor colorWithRed:0.13 green:0.73 blue:0.60 alpha:1.0]];
         [_pasteButtonInternal addTarget:self action:@selector(onTapPaste) forControlEvents:UIControlEventTouchUpInside];
     }
     return _pasteButtonInternal;
@@ -369,27 +860,26 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 
 - (UIButton *)deleteButtonInternal {
     if (!_deleteButtonInternal) {
-        // 浅灰底深色文字，更接近截图里“删除”样式
-        _deleteButtonInternal = [UIButton buttonWithType:UIButtonTypeSystem];
-        _deleteButtonInternal.backgroundColor = [UIColor colorWithWhite:0.92 alpha:1.0];
-        _deleteButtonInternal.layer.cornerRadius = 12.0;
+        _deleteButtonInternal = [UIButton buttonWithType:UIButtonTypeCustom];
+        _deleteButtonInternal.backgroundColor = [UIColor colorWithHex:0xB9BDC8];
+        _deleteButtonInternal.layer.cornerRadius = 8.0;
         _deleteButtonInternal.layer.masksToBounds = YES;
-        _deleteButtonInternal.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold];
-        [_deleteButtonInternal setTitle:@"删除" forState:UIControlStateNormal];
-        [_deleteButtonInternal setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
+        [_deleteButtonInternal setImage:[UIImage imageNamed:@"kb_del_icon"] forState:UIControlStateNormal];
+
         [_deleteButtonInternal addTarget:self action:@selector(onTapDelete) forControlEvents:UIControlEventTouchUpInside];
+        [self.backspaceHandler bindDeleteButton:_deleteButtonInternal showClearLabel:NO];
     }
     return _deleteButtonInternal;
 }
 
 - (UIButton *)clearButtonInternal {
     if (!_clearButtonInternal) {
-        _clearButtonInternal = [UIButton buttonWithType:UIButtonTypeSystem];
-        _clearButtonInternal.backgroundColor = [UIColor colorWithWhite:0.92 alpha:1.0];
-        _clearButtonInternal.layer.cornerRadius = 12.0;
+        _clearButtonInternal = [UIButton buttonWithType:UIButtonTypeCustom];
+        _clearButtonInternal.backgroundColor = [UIColor colorWithHex:0xB9BDC8];
+        _clearButtonInternal.layer.cornerRadius = 8.0;
         _clearButtonInternal.layer.masksToBounds = YES;
-        _clearButtonInternal.titleLabel.font = [UIFont systemFontOfSize:16 weight:UIFontWeightSemibold];
-        [_clearButtonInternal setTitle:@"清空" forState:UIControlStateNormal];
+        _clearButtonInternal.titleLabel.font = [KBFont medium:13];
+        [_clearButtonInternal setTitle:KBLocalized(@"Clear") forState:UIControlStateNormal];
         [_clearButtonInternal setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
         [_clearButtonInternal addTarget:self action:@selector(onTapClear) forControlEvents:UIControlEventTouchUpInside];
     }
@@ -398,16 +888,17 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 
 - (UIButton *)sendButtonInternal {
     if (!_sendButtonInternal) {
-        _sendButtonInternal = [self buildRightButtonWithTitle:@"发送" color:[UIColor colorWithRed:0.13 green:0.73 blue:0.60 alpha:1.0]];
+        _sendButtonInternal = [self buildRightButtonWithTitle:KBLocalized(@"Send") color:[UIColor colorWithHex:0x02BEAC]];
         [_sendButtonInternal addTarget:self action:@selector(onTapSend) forControlEvents:UIControlEventTouchUpInside];
     }
     return _sendButtonInternal;
 }
 
+
 #pragma mark - Expose
 
-- (UICollectionView *)collectionView { return self.collectionViewInternal; }
-- (NSArray<NSString *> *)items { return self.itemsInternal; }
+- (UICollectionView *)collectionView { return self.tagListView.collectionView; }
+//- (NSArray<NSString *> *)items { return self.itemsInternal; }
 - (KBFunctionBarView *)barView { return self.barViewInternal; }
 - (KBFunctionPasteView *)pasteView { return self.pasteViewInternal; }
 - (UIButton *)pasteButton { return self.pasteButtonInternal; }
@@ -417,16 +908,6 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
 
 #pragma mark - Find Owner Controller
 
-// 在视图的响应链中查找宿主 UIInputViewController（KeyboardViewController）
-- (UIInputViewController *)findInputViewController {
-    UIResponder *responder = self;
-    while (responder) {
-        if ([responder isKindOfClass:[UIInputViewController class]]) {
-            return (UIInputViewController *)responder;
-        }
-        responder = responder.nextResponder;
-    }
-    return nil;
-}
+// 工具方法已提取到 KBResponderUtils.h
 
 @end

CustomKeyboard/View/KBKeyBoardMainView.h

@@ -23,11 +23,22 @@ NS_ASSUME_NONNULL_BEGIN
 
 /// 点击了右侧设置按钮
 - (void)keyBoardMainViewDidTapSettings:(KBKeyBoardMainView *)keyBoardMainView;
+/// 点击了撤销删除按钮
+- (void)keyBoardMainViewDidTapUndo:(KBKeyBoardMainView *)keyBoardMainView;
+
+/// emoji 视图里选择了一个表情
+- (void)keyBoardMainView:(KBKeyBoardMainView *)keyBoardMainView didSelectEmoji:(NSString *)emoji;
+
+/// emoji 面板点击搜索
+- (void)keyBoardMainViewDidTapEmojiSearch:(KBKeyBoardMainView *)keyBoardMainView;
 @end
 
 @interface KBKeyBoardMainView : UIView
 @property (nonatomic, weak) id<KBKeyBoardMainViewDelegate> delegate;
 
+/// 应用当前皮肤（会触发键区重载以应用按键颜色）
+- (void)kb_applyTheme;
+
 @end
 
 NS_ASSUME_NONNULL_END

CustomKeyboard/View/KBKeyBoardMainView.m

@@ -10,44 +10,95 @@
 #import "KBKeyboardView.h"
 #import "KBFunctionView.h"
 #import "KBKey.h"
+#import "KBEmojiPanelView.h"
 #import "Masonry.h"
+#import "KBSkinManager.h"
 
-@interface KBKeyBoardMainView ()<KBToolBarDelegate, KBKeyboardViewDelegate>
+@interface KBKeyBoardMainView ()<KBToolBarDelegate, KBKeyboardViewDelegate, KBEmojiPanelViewDelegate>
 @property (nonatomic, strong) KBToolBar *topBar;
 @property (nonatomic, strong) KBKeyboardView *keyboardView;
+@property (nonatomic, strong) KBEmojiPanelView *emojiView;
+@property (nonatomic, assign) BOOL emojiPanelVisible;
 // 注意：功能面板的展示/隐藏由外部控制器决定，此处不再直接管理显隐
 @end
 @implementation KBKeyBoardMainView
 
 - (instancetype)initWithFrame:(CGRect)frame {
     if (self = [super initWithFrame:frame]) {
-        self.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1.0];
+        self.backgroundColor = [KBSkinManager shared].current.keyboardBackground;
+
         // 顶部栏
         self.topBar = [[KBToolBar alloc] init];
         self.topBar.delegate = self;
         [self addSubview:self.topBar];
-        [self.topBar mas_makeConstraints:^(MASConstraintMaker *make) {
-            make.left.right.equalTo(self);
-            make.top.equalTo(self.mas_top).offset(6);
-            make.height.mas_equalTo(40);
-        }];
+        // 键盘区域（高度按照设计值做等比缩放，避免不同机型上按键被压缩/拉伸）
+        CGFloat keyboardAreaHeight = KBFit(200.0f);
+        CGFloat bottomInset = KBFit(4.0f);
+        CGFloat barSpacing = KBFit(6.0f);
 
-        // 键盘区域
         self.keyboardView = [[KBKeyboardView alloc] init];
         self.keyboardView.delegate = self;
         [self addSubview:self.keyboardView];
         [self.keyboardView mas_makeConstraints:^(MASConstraintMaker *make) {
             make.left.right.equalTo(self);
-            make.top.equalTo(self.topBar.mas_bottom).offset(4);
-            make.bottom.equalTo(self.mas_bottom).offset(-4);
+            make.height.mas_equalTo(keyboardAreaHeight);
+            make.bottom.equalTo(self.mas_bottom).offset(-bottomInset);
         }];
 
-        // 功能面板切换交由外部控制器处理；此处不直接创建/管理
+        self.emojiView = [[KBEmojiPanelView alloc] init];
+        self.emojiView.hidden = YES;
+        self.emojiView.alpha = 0.0;
+        self.emojiView.delegate = self;
+        [self addSubview:self.emojiView];
+        [self.emojiView mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.edges.equalTo(self);
+        }];
 
+        [self.topBar mas_makeConstraints:^(MASConstraintMaker *make) {
+            make.left.right.equalTo(self);
+            make.top.equalTo(self.mas_top).offset(0);
+            make.bottom.equalTo(self.keyboardView.mas_top).offset(0);
+        }];
+        // 功能面板切换交由外部控制器处理；此处不直接创建/管理
     }
     return self;
 }
 
+- (void)setEmojiPanelVisible:(BOOL)visible animated:(BOOL)animated {
+    if (self.emojiPanelVisible == visible) return;
+    self.emojiPanelVisible = visible;
+    if (visible) {
+        [self.emojiView reloadData];
+        self.emojiView.hidden = NO;
+        [self bringSubviewToFront:self.emojiView];
+    } else {
+        self.keyboardView.hidden = NO;
+        self.topBar.hidden = NO;
+    }
+
+    void (^changes)(void) = ^{
+        self.emojiView.alpha = visible ? 1.0 : 0.0;
+        self.keyboardView.alpha = visible ? 0.0 : 1.0;
+        self.topBar.alpha = visible ? 0.0 : 1.0;
+    };
+    void (^completion)(BOOL) = ^(BOOL finished) {
+        self.emojiView.hidden = !visible;
+        self.keyboardView.hidden = visible;
+        self.topBar.hidden = visible;
+    };
+
+    if (animated) {
+        [UIView animateWithDuration:0.22 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:changes completion:completion];
+    } else {
+        changes();
+        completion(YES);
+    }
+}
+
+- (void)toggleEmojiPanel {
+    [self setEmojiPanelVisible:!self.emojiPanelVisible animated:YES];
+}
+
 
 #pragma mark - KBToolBarDelegate
 
@@ -64,6 +115,12 @@
     }
 }
 
+- (void)toolBarDidTapUndo:(KBToolBar *)toolBar {
+    if ([self.delegate respondsToSelector:@selector(keyBoardMainViewDidTapUndo:)]) {
+        [self.delegate keyBoardMainViewDidTapUndo:self];
+    }
+}
+
 #pragma mark - KBKeyboardViewDelegate
 
 - (void)keyboardView:(KBKeyboardView *)keyboard didTapKey:(KBKey *)key {
@@ -99,12 +156,15 @@
                 [self.delegate keyBoardMainView:self didTapKey:key];
             }
             break;
-        case KBKeyTypeCustom:
-            // 自定义占位：切换语言或其它操作
+        case KBKeyTypeCustom: {
+            if ([key.identifier isEqualToString:KBKeyIdentifierEmojiPanel]) {
+                [self toggleEmojiPanel];
+                break;
+            }
             if ([self.delegate respondsToSelector:@selector(keyBoardMainView:didTapKey:)]) {
                 [self.delegate keyBoardMainView:self didTapKey:key];
             }
-            break;
+        } break;
         case KBKeyTypeShift:
             // Shift 已在 KBKeyboardView 内部处理
             break;
@@ -114,5 +174,47 @@
 // 切换功能面板交由外部控制器处理（此处不再实现）
 
 // 设置页展示改由 KeyboardViewController 统一处理
+#pragma mark - KBEmojiPanelViewDelegate
+
+- (void)emojiPanelView:(KBEmojiPanelView *)panel didSelectEmoji:(NSString *)emoji {
+    if (emoji.length == 0) return;
+    if ([self.delegate respondsToSelector:@selector(keyBoardMainView:didSelectEmoji:)]) {
+        [self.delegate keyBoardMainView:self didSelectEmoji:emoji];
+    }
+}
+
+- (void)emojiPanelViewDidRequestClose:(KBEmojiPanelView *)panel {
+    [self setEmojiPanelVisible:NO animated:YES];
+}
+
+- (void)emojiPanelViewDidTapSearch:(KBEmojiPanelView *)panel {
+    if ([self.delegate respondsToSelector:@selector(keyBoardMainViewDidTapEmojiSearch:)]) {
+        [self.delegate keyBoardMainViewDidTapEmojiSearch:self];
+    }
+}
+
+- (void)emojiPanelViewDidTapDelete:(KBEmojiPanelView *)panel {
+    if ([self.delegate respondsToSelector:@selector(keyBoardMainView:didTapKey:)]) {
+        KBKey *backspace = [KBKey keyWithTitle:@"" type:KBKeyTypeBackspace];
+        [self.delegate keyBoardMainView:self didTapKey:backspace];
+    }
+}
+
+#pragma mark - Theme
+
+- (void)kb_applyTheme {
+    KBSkinManager *mgr = [KBSkinManager shared];
+    BOOL hasImg = ([mgr currentBackgroundImage] != nil);
+    UIColor *bg = mgr.current.keyboardBackground;
+    self.backgroundColor = hasImg ? [UIColor clearColor] : bg;
+    self.keyboardView.backgroundColor = hasImg ? [UIColor clearColor] : bg;
+    if ([self.topBar respondsToSelector:@selector(kb_applyTheme)]) {
+        [self.topBar kb_applyTheme];
+    }
+    [self.keyboardView reloadKeys];
+    if (self.emojiView) {
+        [self.emojiView applyTheme:mgr.current];
+    }
+}
 
 @end

CustomKeyboard/View/KBKeyButton.h

@@ -10,6 +10,7 @@
 @interface KBKeyButton : UIButton
 
 @property (nonatomic, strong) KBKey *key;
+@property (nonatomic, strong) UIImageView *iconView;
 
 /// 配置基础样式（背景、圆角等）。创建按钮时调用。
 - (void)applyDefaultStyle;
@@ -17,4 +18,7 @@
 /// 根据选中/高亮等状态刷新外观
 - (void)refreshStateAppearance;
 
+/// 根据当前皮肤与按键标识，应用图标和文字显隐等细节
+- (void)applyThemeForCurrentKey;
+
 @end

CustomKeyboard/View/KBKeyButton.m

@@ -5,37 +5,114 @@
 
 #import "KBKeyButton.h"
 #import "KBKey.h"
+#import "KBSkinManager.h"
+
+@interface KBKeyButton ()
+// 内部缓存：便于从按钮查找到所属的 KBKeyboardView
+@property (nonatomic, weak, readonly) UIView *kb_keyboardContainer;
+@property (nonatomic, strong) UIImageView *normalImageView; /// 没有皮肤的时候展示
+@property (nonatomic, strong) UIColor *baseBackgroundColor; /// 无按下状态下，由皮肤/主题决定的底色（由 normalImageView 展示）
+
+@end
 
 @implementation KBKeyButton
 
 - (instancetype)initWithFrame:(CGRect)frame {
     if (self = [super initWithFrame:frame]) {
+        [self addSubview:self.normalImageView];
+        self.normalImageView.translatesAutoresizingMaskIntoConstraints = NO;
+        [NSLayoutConstraint activateConstraints:@[
+            [self.normalImageView.topAnchor constraintEqualToAnchor:self.topAnchor],
+            [self.normalImageView.bottomAnchor constraintEqualToAnchor:self.bottomAnchor],
+            [self.normalImageView.leadingAnchor constraintEqualToAnchor:self.leadingAnchor constant:2],
+            [self.normalImageView.trailingAnchor constraintEqualToAnchor:self.trailingAnchor constant:-2],
+        ]];
         [self applyDefaultStyle];
     }
     return self;
 }
 
 - (void)applyDefaultStyle {
-    self.titleLabel.font = [UIFont systemFontOfSize:18 weight:UIFontWeightSemibold]; // 字体样式
-    [self setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
-    [self setTitleColor:[UIColor blackColor] forState:UIControlStateHighlighted];
-    self.backgroundColor = [UIColor whiteColor];
+    self.titleLabel.font = [UIFont systemFontOfSize:18 weight:UIFontWeightSemibold];
+    KBSkinTheme *t = [KBSkinManager shared].current;
+    [self setTitleColor:t.keyTextColor forState:UIControlStateNormal];
+    [self setTitleColor:t.keyTextColor forState:UIControlStateHighlighted];
+    // 颜色由 normalImageView 控制，按钮本身保持透明，避免叠加背景影响视觉
+    self.backgroundColor = [UIColor clearColor];
     self.layer.cornerRadius = 6.0;      // 圆角
     self.layer.masksToBounds = NO;
     self.layer.shadowColor = [UIColor colorWithWhite:0 alpha:0.1].CGColor; // 阴影效果
     self.layer.shadowOpacity = 1.0;
     self.layer.shadowOffset = CGSizeMake(0, 1);
     self.layer.shadowRadius = 1.5;
+
+    // 初始状态下根据主题设置底色（给没有皮肤图的按键使用）
     [self refreshStateAppearance];
+
+    // 懒创建图标视图，用于后续皮肤按键小图标展示
+    if (!self.iconView) {
+        UIImageView *iv = [[UIImageView alloc] initWithFrame:CGRectZero];
+        // 作为按键的整块皮肤背景，铺满整个按钮区域
+        iv.contentMode = UIViewContentModeScaleToFill;
+        iv.clipsToBounds = YES;
+        iv.translatesAutoresizingMaskIntoConstraints = NO;
+        [self addSubview:iv];
+        // 让皮肤图片撑满整个按钮
+        [NSLayoutConstraint activateConstraints:@[
+            [iv.topAnchor constraintEqualToAnchor:self.topAnchor],
+            [iv.bottomAnchor constraintEqualToAnchor:self.bottomAnchor],
+            [iv.leadingAnchor constraintEqualToAnchor:self.leadingAnchor constant:2],
+            [iv.trailingAnchor constraintEqualToAnchor:self.trailingAnchor constant:-2],
+        ]];
+        self.iconView = iv;
+
+        // 文字保持居中；若需要显示文字，则覆盖在皮肤图片之上
+        self.titleEdgeInsets = UIEdgeInsetsZero;
+        [self bringSubviewToFront:self.titleLabel];
+    }
+}
+
+- (void)setKey:(KBKey *)key {
+    _key = key;
 }
 
 - (void)setHighlighted:(BOOL)highlighted {
     [super setHighlighted:highlighted];
-    // 简单按压反馈：选中态不改变透明度，避免和高亮态冲突
-    if (self.isSelected) {
-        self.alpha = 1.0;
-    } else {
-        self.alpha = highlighted ? 0.2 : 1.0;
+    // 按下时整体做一个等比缩放动画，不改背景色和透明度。
+    // 这样无论是纯文字键还是整块皮肤图，都有统一的“按下”视觉反馈。
+    CGFloat scale = highlighted ? 0.9 : 1.0; // 可根据手感微调 0.9~0.95
+
+    // 没有皮肤图片时，normalImageView 做灰度按下效果
+    BOOL hasIcon = (self.iconView.image != nil);
+    UIColor *normalBgColor = self.baseBackgroundColor ?: [UIColor whiteColor];
+    UIColor *highlightBgColor = [self kb_darkerColorForColor:normalBgColor];
+
+    [UIView animateWithDuration:0.08
+                          delay:0
+                        options:UIViewAnimationOptionBeginFromCurrentState | UIViewAnimationOptionCurveEaseOut
+                     animations:^{
+                         if (!hasIcon && !self.normalImageView.hidden) {
+                             self.normalImageView.backgroundColor = highlighted ? highlightBgColor : normalBgColor;
+                         }
+                         self.transform = CGAffineTransformMakeScale(scale, scale);
+                     }
+                     completion:nil];
+
+    // 将“按下/抬起”事件转发给键盘视图，用于显示/隐藏顶部预览气泡。
+    UIView *container = self.kb_keyboardContainer;
+    if ([container respondsToSelector:@selector(showPreviewForButton:)] &&
+        [container respondsToSelector:@selector(hidePreview)]) {
+        if (highlighted) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+            [container performSelector:@selector(showPreviewForButton:) withObject:self];
+#pragma clang diagnostic pop
+        } else {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+            [container performSelector:@selector(hidePreview)];
+#pragma clang diagnostic pop
+        }
     }
 }
 
@@ -46,11 +123,109 @@
 
 - (void)refreshStateAppearance {
     // 选中态用于 Shift/CapsLock 等特殊按键的高亮显示
+    KBSkinTheme *t = [KBSkinManager shared].current;
+    UIColor *base = nil;
     if (self.isSelected) {
-        self.backgroundColor = [UIColor colorWithWhite:0.85 alpha:1.0];
+        base = t.keyHighlightBackground ?: t.keyBackground;
     } else {
-        self.backgroundColor = [UIColor whiteColor];
+        base = t.keyBackground;
+    }
+    if (!base) {
+        base = [UIColor whiteColor];
+    }
+
+    self.baseBackgroundColor = base;
+    // 按键背景统一由 normalImageView 控制，按钮本身透明
+    self.backgroundColor = [UIColor clearColor];
+
+    // 有皮肤图时仅展示 icon，不再显示普通背景色
+    if (self.iconView.image != nil || self.normalImageView.hidden) {
+        return;
+    }
+
+    self.normalImageView.backgroundColor = base;
+}
+
+- (void)applyThemeForCurrentKey {
+    // 根据皮肤映射加载图标（若有），支持大小写变体：
+    // - identifier: 逻辑按键标识（如 letter_q）
+    // - caseVariant: 0/1/2 => 无变体/小写/大写
+    NSString *identifier = self.key.identifier;
+    NSInteger variant = (NSInteger)self.key.caseVariant;
+    KBSkinManager *skinManager = [KBSkinManager shared];
+    UIImage *iconImg = [skinManager iconImageForKeyIdentifier:identifier caseVariant:variant];
+
+    if (!iconImg && [identifier isEqualToString:@"ai"]) {
+        NSString *skinId = skinManager.current.skinId ?: @"";
+        BOOL usingDefaultSkin = (skinId.length == 0 || [skinId isEqualToString:@"default"]);
+        if (usingDefaultSkin) {
+            iconImg = [UIImage imageNamed:@"ai_key_icon"];
+        }
+    }
+
+    // 设置整块按键背景图（若有）
+    self.iconView.image = iconImg;
+    self.iconView.hidden = (iconImg == nil);
+
+    BOOL hasIcon = (iconImg != nil);
+    self.normalImageView.hidden = hasIcon;
+    if (hasIcon) {
+        // 有图标：仅显示图片，完全隐藏文字
+        [self setTitle:@"" forState:UIControlStateNormal];
+        [self setTitle:@"" forState:UIControlStateHighlighted];
+        [self setTitle:@"" forState:UIControlStateSelected];
+        self.titleLabel.hidden = YES;
+        self.normalImageView.backgroundColor = [UIColor clearColor];
+    } else {
+        // 无图标：按键标题正常显示（使用 key.title），并根据 hidden_keys 决定要不要隐藏
+        [self setTitle:self.key.title forState:UIControlStateNormal];
+        BOOL hideTextBySkin = [[KBSkinManager shared] shouldHideKeyTextForIdentifier:identifier];
+        self.titleLabel.hidden = hideTextBySkin;
     }
 }
 
+- (UIImageView *)normalImageView{
+    if (!_normalImageView) {
+        _normalImageView = [[UIImageView alloc] init];
+        // 初始给一个默认色，后续会由 refreshStateAppearance / 皮肤统一覆盖
+        _normalImageView.backgroundColor = [UIColor whiteColor];
+        _normalImageView.layer.cornerRadius = 6;
+        _normalImageView.layer.masksToBounds = true;
+    }
+    return _normalImageView;
+}
+
+/// 在当前底色的基础上略微变暗，作为按下时的“灰度”效果
+- (UIColor *)kb_darkerColorForColor:(UIColor *)color {
+    if (!color) return [UIColor colorWithWhite:0.9 alpha:1.0];
+
+    CGFloat h = 0, s = 0, b = 0, a = 0;
+    if ([color getHue:&h saturation:&s brightness:&b alpha:&a]) {
+        return [UIColor colorWithHue:h saturation:s brightness:MAX(b * 0.9, 0.0) alpha:a];
+    }
+
+    CGFloat white = 0;
+    if ([color getWhite:&white alpha:&a]) {
+        return [UIColor colorWithWhite:MAX(white * 0.9, 0.0) alpha:a];
+    }
+
+    return color;
+}
+
+@end
+
+@implementation KBKeyButton (KBKeyboardContainer)
+
+- (UIView *)kb_keyboardContainer {
+    UIView *v = self.superview;
+    while (v) {
+        // KBKeyboardView 是当前容器类型，这里用类名字符串避免直接引用头文件死循环
+        if ([NSStringFromClass(v.class) isEqualToString:@"KBKeyboardView"]) {
+            return v;
+        }
+        v = v.superview;
+    }
+    return nil;
+}
+
 @end

CustomKeyboard/View/KBKeyPreviewView.h

@@ -0,0 +1,21 @@
+//
+//  KBKeyPreviewView.h
+//  CustomKeyboard
+//
+
+#import <UIKit/UIKit.h>
+
+@class KBKey;
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 按键按下时显示的气泡预览视图（类似系统键盘上方弹出的放大字母）。
+@interface KBKeyPreviewView : UIView
+
+/// 配置预览内容：字符与可选图标。
+- (void)configureWithKey:(KBKey *)key icon:(nullable UIImage *)icon;
+
+@end
+
+NS_ASSUME_NONNULL_END
+