diff --git a/frontend/index.html b/frontend/index.html
index 2d555fe..fbd9950 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -7,6 +7,47 @@
     <title>frontend</title>
     <!-- 飞书扫码登录 SDK -->
     <script src="https://lf-package-cn.feishucdn.com/obj/feishu-static/lark/passport/qrcode/LarkSSOSDKWebQRCode-1.0.3.js"></script>
+    <!-- 飞书 H5 JSBridge SDK（多 CDN 备用） -->
+    <script>
+      // 尝试加载飞书 JSBridge，如果失败则尝试其他 CDN
+      var scripts = [
+        'https://lf1-cdn-tos.bytegoofy.com/goofy/lark/passport/h5-jsbridge-1.0.3.js',
+        'https://lf9-cn.feishucdn.com/obj/lark/passport/h5-jsbridge-1.0.3.js'
+      ];
+
+      function loadScript(url) {
+        return new Promise(function(resolve, reject) {
+          var script = document.createElement('script');
+          script.src = url;
+          script.onload = function() { console.log('JSBridge loaded from:', url); resolve(); };
+          script.onerror = function() { reject(url); };
+          document.head.appendChild(script);
+        });
+      }
+
+      // 按顺序尝试加载 JSBridge
+      function loadJSBridge() {
+        var index = 0;
+        function tryNext() {
+          if (index < scripts.length) {
+            loadScript(scripts[index])
+              .catch(function() {
+                console.warn('JSBridge load failed:', scripts[index]);
+                index++;
+                tryNext();
+              });
+          } else {
+            console.error('All JSBridge CDNs failed');
+          }
+        }
+        tryNext();
+      }
+
+      // 页面加载后尝试加载 JSBridge
+      if (navigator.userAgent.includes('Lark') || navigator.userAgent.includes('feishu')) {
+        loadJSBridge();
+      }
+    </script>
   </head>
   <body>
     <div id="root"></div>
diff --git a/frontend/src/pages/login/index.tsx b/frontend/src/pages/login/index.tsx
index 3299083..e38af2e 100644
--- a/frontend/src/pages/login/index.tsx
+++ b/frontend/src/pages/login/index.tsx
@@ -110,11 +110,20 @@ export default function Login() {
       setEnvironment('feishu')
       handleFeishuAutoLogin()
     } else if (isInFeishu) {
-      // 飞书内但 tt 对象不可用：自动显示二维码登录
-      console.log('⚠️ 在飞书内但 tt 对象不可用，使用二维码登录')
-      setEnvironment('external')
+      // 飞书内环境，等待 tt 对象加载后尝试免登
+      console.log('⏳ 在飞书内环境，等待 tt 对象加载...')
+      setEnvironment('feishu')
       setLoading(false)
-      setShowQRCode(true)
+      // 给 tt 对象一些时间来加载（最多 2 秒）
+      setTimeout(() => {
+        if (window.tt) {
+          console.log('✅ tt 对象已加载，开始免登')
+          handleFeishuAutoLogin()
+        } else {
+          console.log('⚠️ tt 对象仍未加载，显示二维码登录')
+          setShowQRCode(true)
+        }
+      }, 2000)
     } else {
       // 飞书外：显示登录选项
       console.log('📱 飞书外环境，显示登录选项')