diff --git a/i18n/en/msg.txt b/i18n/en/msg.txt
index abd0ce9..d344aaf 100644
--- a/i18n/en/msg.txt
+++ b/i18n/en/msg.txt
@@ -32,3 +32,5 @@ Submit: Submit
 营销产线: Marketing Pipeline
 运维产线（面向FOMS）规划中，尚未开发: Operations Pipeline (for FOMS) is planned, not yet developed
 营销产线规划中，尚未开发: Marketing Pipeline is planned, not yet developed
+切换主题: Toggle theme
+显示所有已最小化的窗口: Show all minimized windows
diff --git a/i18n/jp/msg.txt b/i18n/jp/msg.txt
index efa816f..264c955 100644
--- a/i18n/jp/msg.txt
+++ b/i18n/jp/msg.txt
@@ -32,3 +32,5 @@ Submit: 送信
 营销产线: マーケティングパイプライン
 运维产线（面向FOMS）规划中，尚未开发: 運用パイプライン（FOMS向け）は計画中で、まだ開発されていません
 营销产线规划中，尚未开发: マーケティングパイプラインは計画中で、まだ開発されていません
+切换主题: テーマ切替
+显示所有已最小化的窗口: 最小化されたすべてのウィンドウを表示
diff --git a/i18n/ko/msg.txt b/i18n/ko/msg.txt
index ce1ad2a..d8cc1a5 100644
--- a/i18n/ko/msg.txt
+++ b/i18n/ko/msg.txt
@@ -32,3 +32,5 @@ Submit: 제출
 营销产线: 마케팅 파이프라인
 运维产线（面向FOMS）规划中，尚未开发: 운영 파이프라인(FOMS 대상)은 계획 중이며 아직 개발되지 않았습니다
 营销产线规划中，尚未开发: 마케팅 파이프라인은 계획 중이며 아직 개발되지 않았습니다
+切换主题: 테마 전환
+显示所有已最小化的窗口: 최소화된 모든 창 표시
diff --git a/i18n/zh/msg.txt b/i18n/zh/msg.txt
index a0cf2cc..f3694fa 100644
--- a/i18n/zh/msg.txt
+++ b/i18n/zh/msg.txt
@@ -32,3 +32,5 @@ Submit: Submit
 营销产线: 营销产线
 运维产线（面向FOMS）规划中，尚未开发: 运维产线（面向FOMS）规划中，尚未开发
 营销产线规划中，尚未开发: 营销产线规划中，尚未开发
+切换主题: 切换主题
+显示所有已最小化的窗口: 显示所有已最小化的窗口
diff --git a/scripts/load_path.py b/scripts/load_path.py
index 0d7d964..7deb057 100644
--- a/scripts/load_path.py
+++ b/scripts/load_path.py
@@ -55,6 +55,7 @@ PERMS = [
     ("/index.ui", "app", "any"),
     ("/todo_badge.js", "app", "any"),
     ("/index_tab.js", "app", "any"),
+    ("/theme_toggle.js", "app", "any"),
     ("/pipeline-sdlc/index.ui", "pipeline_sdlc", "any"),
     ("/pipeline_core/index.ui", "pipeline_core", "any"),
     ("/pipeline_ops/index.ui", "pipeline_ops", "any"),
diff --git a/wwwroot/i18n/en/i18n.json b/wwwroot/i18n/en/i18n.json
index bf116aa..87dddc7 100644
--- a/wwwroot/i18n/en/i18n.json
+++ b/wwwroot/i18n/en/i18n.json
@@ -273,5 +273,7 @@
   "🎤 KTV": "🎤 KTV",
   "🎬 MTV": "🎬 MTV",
   "🎵 音乐": "🎵 Music",
-  "📱 短视频": "📱 Short Video"
+  "📱 短视频": "📱 Short Video",
+  "切换主题": "Toggle theme",
+  "显示所有已最小化的窗口": "Show all minimized windows"
 }
\ No newline at end of file
diff --git a/wwwroot/i18n/jp/i18n.json b/wwwroot/i18n/jp/i18n.json
index 74c7eec..5a52417 100644
--- a/wwwroot/i18n/jp/i18n.json
+++ b/wwwroot/i18n/jp/i18n.json
@@ -273,5 +273,7 @@
   "🎤 KTV": "🎤 KTV",
   "🎬 MTV": "🎬 MTV",
   "🎵 音乐": "🎵 音楽",
-  "📱 短视频": "📱 ショート動画"
+  "📱 短视频": "📱 ショート動画",
+  "切换主题": "テーマ切替",
+  "显示所有已最小化的窗口": "最小化されたすべてのウィンドウを表示"
 }
\ No newline at end of file
diff --git a/wwwroot/i18n/ko/i18n.json b/wwwroot/i18n/ko/i18n.json
index ffe4914..a735d11 100644
--- a/wwwroot/i18n/ko/i18n.json
+++ b/wwwroot/i18n/ko/i18n.json
@@ -273,5 +273,7 @@
   "🎤 KTV": "🎤 KTV",
   "🎬 MTV": "🎬 MTV",
   "🎵 音乐": "🎵 음악",
-  "📱 短视频": "📱 숏폼 영상"
+  "📱 短视频": "📱 숏폼 영상",
+  "切换主题": "테마 전환",
+  "显示所有已最小化的窗口": "최소화된 모든 창 표시"
 }
\ No newline at end of file
diff --git a/wwwroot/i18n/zh/i18n.json b/wwwroot/i18n/zh/i18n.json
index 2003919..7b78796 100644
--- a/wwwroot/i18n/zh/i18n.json
+++ b/wwwroot/i18n/zh/i18n.json
@@ -95,5 +95,7 @@
   "🎤 KTV": "🎤 KTV",
   "🎬 MTV": "🎬 MTV",
   "🎵 音乐": "🎵 音乐",
-  "📱 短视频": "📱 短视频"
+  "📱 短视频": "📱 短视频",
+  "切换主题": "切换主题",
+  "显示所有已最小化的窗口": "显示所有已最小化的窗口"
 }
\ No newline at end of file
diff --git a/wwwroot/index.ui b/wwwroot/index.ui
index f3b69cc..b55d313 100644
--- a/wwwroot/index.ui
+++ b/wwwroot/index.ui
@@ -51,6 +51,48 @@
         {
           "widgettype": "Filler"
         },
+        {
+          "widgettype": "Button",
+          "id": "theme_toggle_btn",
+          "options": {
+            "label": "🌙",
+            "css": "text",
+            "width": "36px",
+            "height": "36px",
+            "borderRadius": "50%",
+            "border": "1px solid #475569",
+            "bgcolor": "transparent",
+            "cfontsize": 1.1,
+            "tip": "切换主题"
+          },
+          "binds": [
+            {
+              "wid": "self",
+              "event": "click",
+              "actiontype": "script",
+              "target": "self",
+              "script": "var h=document.documentElement;var t=h.getAttribute('data-theme')||'light';var n=t=='light'?'dark':'light';h.setAttribute('data-theme',n);try{localStorage.setItem('pipeline_ui_theme',n);}catch(e){}if(window.applyPipelineTheme){window.applyPipelineTheme(n);}"
+            }
+          ]
+        },
+        {
+          "widgettype": "Svg",
+          "options": {
+            "css": "clickable",
+            "rate": 2,
+            "tip": "显示所有已最小化的窗口",
+            "url": "{{entire_url('/bricks/imgs/app-dock.svg')}}"
+          },
+          "binds": [
+            {
+              "wid": "self",
+              "event": "click",
+              "actiontype": "script",
+              "target": "app",
+              "script": "bricks.app.show_windows_panel(event)"
+            }
+          ]
+        },
         {
           "widgettype": "urlwidget",
           "options": {
diff --git a/wwwroot/theme_toggle.js b/wwwroot/theme_toggle.js
new file mode 100644
index 0000000..1bb2051
--- /dev/null
+++ b/wwwroot/theme_toggle.js
@@ -0,0 +1,27 @@
+/* 顶栏主题切换：页面加载时恢复上次主题 + 同步按钮图标
+   约定：light 主题显示 🌙（点击切暗），dark 主题显示 ☀️（点击切亮） */
+(function(){
+    if (typeof bricks === 'undefined') return;
+    var KEY = 'pipeline_ui_theme';
+
+    function applyTheme(t){
+        document.documentElement.setAttribute('data-theme', t);
+        var btn = bricks.getWidgetById('theme_toggle_btn', bricks.app);
+        if (btn && btn.dom_element){
+            btn.opts.label = (t === 'light') ? '🌙' : '☀️';
+            btn.dom_element.textContent = btn.opts.label;
+        }
+    }
+    window.applyPipelineTheme = applyTheme;
+
+    function _start(){
+        if (bricks.app && bricks.getWidgetById){
+            var t = null;
+            try { t = localStorage.getItem(KEY); } catch(e) {}
+            applyTheme(t || 'light');
+        } else {
+            setTimeout(_start, 300);
+        }
+    }
+    setTimeout(_start, 300);
+})();