diff --git a/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/Contents.json b/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/Contents.json
new file mode 100644
index 0000000..ae052a8
--- /dev/null
+++ b/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
+  }
+}
diff --git a/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/back_keybord_icon@2x.png b/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/back_keybord_icon@2x.png
new file mode 100644
index 0000000..46e464f
Binary files /dev/null and b/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/back_keybord_icon@2x.png differ
diff --git a/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/back_keybord_icon@3x.png b/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/back_keybord_icon@3x.png
new file mode 100644
index 0000000..9f1e468
Binary files /dev/null and b/CustomKeyboard/KeyboardAssets.xcassets/back_keybord_icon.imageset/back_keybord_icon@3x.png differ
diff --git a/CustomKeyboard/View/EmojiView/KBEmojiPanelView.m b/CustomKeyboard/View/EmojiView/KBEmojiPanelView.m
index 36653f2..9258031 100644
--- a/CustomKeyboard/View/EmojiView/KBEmojiPanelView.m
+++ b/CustomKeyboard/View/EmojiView/KBEmojiPanelView.m
@@ -56,9 +56,10 @@
     topBar.backgroundColor = [UIColor clearColor];
     [self addSubview:topBar];
 
-    self.backButton = [UIButton buttonWithType:UIButtonTypeSystem];
-    self.backButton.titleLabel.font = [UIFont systemFontOfSize:30 weight:UIFontWeightSemibold];
-    [self.backButton setTitle:@"⌨︎" forState:UIControlStateNormal];
+    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];
 
@@ -78,9 +79,9 @@
         make.width.height.mas_equalTo(32);
     }];
     [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
-        make.left.equalTo(self.backButton.mas_right).offset(12);
+        make.centerX.equalTo(self);
         make.centerY.equalTo(topBar);
-        make.right.lessThanOrEqualTo(topBar.mas_right).offset(-12);
+//        make.right.lessThanOrEqualTo(topBar.mas_right).offset(-12);
     }];
 
     UICollectionViewFlowLayout *layout = [UICollectionViewFlowLayout new];
diff --git a/CustomKeyboard/View/KBKeyButton.m b/CustomKeyboard/View/KBKeyButton.m
index 8024b36..0994495 100644
--- a/CustomKeyboard/View/KBKeyButton.m
+++ b/CustomKeyboard/View/KBKeyButton.m
@@ -152,7 +152,16 @@
     // - caseVariant: 0/1/2 => 无变体/小写/大写
     NSString *identifier = self.key.identifier;
     NSInteger variant = (NSInteger)self.key.caseVariant;
-    UIImage *iconImg = [[KBSkinManager shared] iconImageForKeyIdentifier:identifier caseVariant:variant];
+    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;