diff --git a/CustomKeyboard/Model/KBKeyboardLayoutConfig.m b/CustomKeyboard/Model/KBKeyboardLayoutConfig.m
index c8a2524..94a0c97 100644
--- a/CustomKeyboard/Model/KBKeyboardLayoutConfig.m
+++ b/CustomKeyboard/Model/KBKeyboardLayoutConfig.m
@@ -114,6 +114,38 @@ static NSString * const kKBKeyboardLayoutI18nFileName = @"kb_keyboard_layouts_i1
     }
 }
 
+- (NSArray<KBKeyboardRowConfig *> *)kb_mergeRowsFromBase:(NSArray<KBKeyboardRowConfig *> *)baseRows
+                                               override:(NSArray<KBKeyboardRowConfig *> *)overrideRows {
+    if (baseRows.count == 0) { return overrideRows ?: @[]; }
+    if (overrideRows.count == 0) { return baseRows; }
+
+    NSUInteger maxCount = MAX(baseRows.count, overrideRows.count);
+    NSMutableArray<KBKeyboardRowConfig *> *merged = [NSMutableArray arrayWithCapacity:maxCount];
+    for (NSUInteger i = 0; i < maxCount; i++) {
+        KBKeyboardRowConfig *baseRow = (i < baseRows.count) ? baseRows[i] : nil;
+        KBKeyboardRowConfig *overrideRow = (i < overrideRows.count) ? overrideRows[i] : nil;
+        if (!baseRow) {
+            if (overrideRow) { [merged addObject:overrideRow]; }
+            continue;
+        }
+        if (!overrideRow) {
+            [merged addObject:baseRow];
+            continue;
+        }
+        KBKeyboardRowConfig *row = [KBKeyboardRowConfig new];
+        row.height = baseRow.height ?: overrideRow.height;
+        row.insetLeft = baseRow.insetLeft ?: overrideRow.insetLeft;
+        row.insetRight = baseRow.insetRight ?: overrideRow.insetRight;
+        row.gap = baseRow.gap ?: overrideRow.gap;
+        row.align = baseRow.align.length > 0 ? baseRow.align : overrideRow.align;
+        BOOL hasOverrideItems = [overrideRow.items isKindOfClass:[NSArray class]] && ((NSArray *)overrideRow.items).count > 0;
+        row.items = hasOverrideItems ? overrideRow.items : baseRow.items;
+        row.segments = overrideRow.segments ?: baseRow.segments;
+        [merged addObject:row];
+    }
+    return merged.copy;
+}
+
 - (void)kb_loadI18nConfig {
     NSString *path = [[NSBundle mainBundle] pathForResource:kKBKeyboardLayoutI18nFileName ofType:@"json"];
     NSData *data = path.length ? [NSData dataWithContentsOfFile:path] : nil;
@@ -143,9 +175,18 @@ static NSString * const kKBKeyboardLayoutI18nFileName = @"kb_keyboard_layouts_i1
             return;
         }
         KBKeyboardLayout *layout = [KBKeyboardLayout mj_objectWithKeyValues:obj];
-        if (layout) {
+        if (!layout) { return; }
+
+        KBKeyboardLayout *baseLayout = mergedLayouts[key];
+        if (!baseLayout) {
             mergedLayouts[key] = layout;
+            return;
         }
+
+        KBKeyboardLayout *mergedLayout = [KBKeyboardLayout new];
+        mergedLayout.rows = [self kb_mergeRowsFromBase:baseLayout.rows override:layout.rows];
+        mergedLayout.shiftRows = [self kb_mergeRowsFromBase:baseLayout.shiftRows override:layout.shiftRows];
+        mergedLayouts[key] = mergedLayout;
     }];
     
     self.layouts = mergedLayouts.copy;
diff --git a/CustomKeyboard/Resource/kb_keyboard_layout_config.json b/CustomKeyboard/Resource/kb_keyboard_layout_config.json
index 54ee705..874eab5 100644
--- a/CustomKeyboard/Resource/kb_keyboard_layout_config.json
+++ b/CustomKeyboard/Resource/kb_keyboard_layout_config.json
@@ -246,6 +246,240 @@
         }
       ]
     },
+    "letters_es": {
+      "__comment": "西班牙语布局（QWERTY）",
+      "rows": [
+        {
+          "__comment": "字母第一行 qwertyuiop",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "letter:q", "letter:w", "letter:e", "letter:r", "letter:t",
+            "letter:y", "letter:u", "letter:i", "letter:o", "letter:p"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        },
+        {
+          "__comment": "字母第二行 asdfghjkl",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "letter:a", "letter:s", "letter:d", "letter:f", "letter:g",
+            "letter:h", "letter:j", "letter:k", "letter:l"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        },
+        {
+          "__comment": "字母第三行：左 shift，中间字母，右 backspace",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "segments": {
+            "__comment": "分段布局：left/center/right",
+            "left": [
+              { "id": "shift", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
+            ],
+            "__comment_left": "左侧固定按钮",
+            "center": [
+              "letter:z", "letter:x", "letter:c", "letter:v", "letter:b", "letter:n", "letter:m"
+            ],
+            "__comment_center": "中间字母键集合，整体居中",
+            "right": [
+              { "id": "backspace", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
+            ],
+            "__comment_right": "右侧固定按钮"
+          }
+        },
+        {
+          "__comment": "字母第四行：123/emoji/space/send",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "mode_123", "emoji", "space", "send"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        }
+      ]
+    },
+    "letters_id": {
+      "__comment": "印度尼西亚语布局（QWERTY）",
+      "rows": [
+        {
+          "__comment": "字母第一行 qwertyuiop",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "letter:q", "letter:w", "letter:e", "letter:r", "letter:t",
+            "letter:y", "letter:u", "letter:i", "letter:o", "letter:p"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        },
+        {
+          "__comment": "字母第二行 asdfghjkl",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 23,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 0,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "letter:a", "letter:s", "letter:d", "letter:f", "letter:g",
+            "letter:h", "letter:j", "letter:k", "letter:l"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        },
+        {
+          "__comment": "字母第三行：左 shift，中间字母，右 backspace",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "segments": {
+            "__comment": "分段布局：left/center/right",
+            "left": [
+              { "id": "shift", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
+            ],
+            "__comment_left": "左侧固定按钮",
+            "center": [
+              "letter:z", "letter:x", "letter:c", "letter:v", "letter:b", "letter:n", "letter:m"
+            ],
+            "__comment_center": "中间字母键集合，整体居中",
+            "right": [
+              { "id": "backspace", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
+            ],
+            "__comment_right": "右侧固定按钮"
+          }
+        },
+        {
+          "__comment": "字母第四行：123/emoji/space/send",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "mode_123", "emoji", "space", "send"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        }
+      ]
+    },
+    "letters_pt": {
+      "__comment": "葡萄牙语布局（QWERTY）",
+      "rows": [
+        {
+          "__comment": "字母第一行 qwertyuiop",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "letter:q", "letter:w", "letter:e", "letter:r", "letter:t",
+            "letter:y", "letter:u", "letter:i", "letter:o", "letter:p"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        },
+        {
+          "__comment": "字母第二行 asdfghjkl",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 23,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 0,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "letter:a", "letter:s", "letter:d", "letter:f", "letter:g",
+            "letter:h", "letter:j", "letter:k", "letter:l"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        },
+        {
+          "__comment": "字母第三行：左 shift，中间字母，右 backspace",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "segments": {
+            "__comment": "分段布局：left/center/right",
+            "left": [
+              { "id": "shift", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
+            ],
+            "__comment_left": "左侧固定按钮",
+            "center": [
+              "letter:z", "letter:x", "letter:c", "letter:v", "letter:b", "letter:n", "letter:m"
+            ],
+            "__comment_center": "中间字母键集合，整体居中",
+            "right": [
+              { "id": "backspace", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
+            ],
+            "__comment_right": "右侧固定按钮"
+          }
+        },
+        {
+          "__comment": "字母第四行：123/emoji/space/send",
+          "align": "left",
+          "__comment_align": "对齐方式：left/center",
+          "insetLeft": 4,
+          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
+          "insetRight": 4,
+          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
+          "gap": 5,
+          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
+          "items": [
+            "mode_123", "emoji", "space", "send"
+          ],
+          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
+        }
+      ]
+    },
     "numbers": {
       "__comment": "数字面板布局（123 页）",
       "rows": [
diff --git a/CustomKeyboard/Resource/kb_keyboard_layouts_i18n.json b/CustomKeyboard/Resource/kb_keyboard_layouts_i18n.json
index 251bcde..a9a98e4 100644
--- a/CustomKeyboard/Resource/kb_keyboard_layouts_i18n.json
+++ b/CustomKeyboard/Resource/kb_keyboard_layouts_i18n.json
@@ -1651,4 +1651,4 @@
       ]
     }
   }
-}
\ No newline at end of file
+}