diff --git a/frontend/src/pages/debug-feishu.tsx b/frontend/src/pages/debug-feishu.tsx
index 1083a5a..5578c13 100644
--- a/frontend/src/pages/debug-feishu.tsx
+++ b/frontend/src/pages/debug-feishu.tsx
@@ -24,37 +24,70 @@ interface EnvInfo {
 export default function DebugFeishuPage() {
   const navigate = useNavigate()
   const [envInfo, setEnvInfo] = useState<EnvInfo | null>(null)
+  const [checking, setChecking] = useState(true)
 
   useEffect(() => {
-    // 延迟检测，等待 JSBridge 注入
-    setTimeout(() => {
+    // 多次检测，等待 JSBridge 注入
+    const checkEnvironment = (attempt: number) => {
+      console.log(`🔍 第 ${attempt} 次环境检测`)
+
       const ua = navigator.userAgent
       const isInFeishu = ua.includes('Lark') || ua.includes('feishu') || ua.includes('lark')
 
       const ttMethods = window.tt ? Object.keys(window.tt) : []
+      const h5sdk = (window as any).h5sdk
+      const bridge = (window as any).bridge
+      const ttjsBridge = window.ttjsBridge
 
-      setEnvInfo({
+      const info = {
         ua,
         isInFeishu,
         hasTT: !!window.tt,
-        hasTTJSBridge: !!window.ttjsBridge,
-        hasH5SDK: !!(window as any).h5sdk,
-        hasBridge: !!(window as any).bridge,
+        hasTTJSBridge: !!ttjsBridge,
+        hasH5SDK: !!h5sdk,
+        hasBridge: !!bridge,
         ttMethods,
-      })
+      }
 
-      console.log('=== 飞书环境调试 ===')
+      console.log('=== 飞书环境检测 ===')
+      console.log('尝试次数:', attempt)
       console.log('User Agent:', ua)
       console.log('在飞书中:', isInFeishu)
       console.log('window.tt:', window.tt)
-      console.log('window.h5sdk:', (window as any).h5sdk)
-      console.log('window.bridge:', (window as any).bridge)
-      console.log('window.ttjsBridge:', window.ttjsBridge)
-      console.log('tt 对象方法:', ttMethods)
+      console.log('window.h5sdk:', h5sdk)
+      console.log('window.bridge:', bridge)
+      console.log('window.ttjsBridge:', ttjsBridge)
 
-      // 检查所有全局对象
-      console.log('所有全局对象:', Object.keys(window).filter(k => k.includes('tt') || k.includes('h5') || k.includes('bridge') || k.includes('lark') || k.includes('feishu')))
-    }, 500)
+      // 检查所有可能的全局对象
+      const allKeys = Object.keys(window)
+      const feishuKeys = allKeys.filter(k =>
+        k.toLowerCase().includes('tt') ||
+        k.toLowerCase().includes('h5') ||
+        k.toLowerCase().includes('bridge') ||
+        k.toLowerCase().includes('lark') ||
+        k.toLowerCase().includes('feishu') ||
+        k.toLowerCase().includes('jsbridge')
+      )
+      console.log('飞书相关的全局对象:', feishuKeys)
+
+      setEnvInfo(info)
+      setChecking(false)
+
+      // 如果检测到任何 API 对象，停止重试
+      if (window.tt || h5sdk || bridge || ttjsBridge) {
+        console.log('✅ 检测到飞书 API 对象')
+        return
+      }
+
+      // 继续重试
+      if (attempt < 5) {
+        setTimeout(() => checkEnvironment(attempt + 1), 500)
+      } else {
+        console.log('⚠️ 5次检测后仍未发现飞书 API 对象')
+      }
+    }
+
+    checkEnvironment(1)
   }, [])
 
   const testFeishuLogin = async () => {
@@ -138,32 +171,51 @@ export default function DebugFeishuPage() {
     <div style={{ padding: '16px', background: '#f5f5f5', minHeight: '100vh' }}>
       <h2>飞书环境调试页面</h2>
 
-      {envInfo && (
-        <List header="环境信息">
-          <List.Item extra={envInfo.isInFeishu ? '✅ 是' : '❌ 否'}>
-            在飞书客户端内
-          </List.Item>
-          <List.Item extra={envInfo.hasTT ? '✅ 存在' : '❌ 不存在'}>
-            window.tt 对象
-          </List.Item>
-          <List.Item extra={envInfo.hasTTJSBridge ? '✅ 存在' : '❌ 不存在'}>
-            window.ttjsBridge 对象
-          </List.Item>
-          <List.Item
-            extraStyle={{ maxWidth: '200px', fontSize: '12px', wordBreak: 'break-all' }}
-          >
-            User Agent
-            <div style={{ fontSize: '10px', color: '#999' }}>
-              {envInfo.ua}
-            </div>
-          </List.Item>
-          <List.Item>
-            tt 对象方法 ({envInfo.ttMethods.length} 个)
-            <div style={{ fontSize: '10px', color: '#999', textAlign: 'right' }}>
-              {envInfo.ttMethods.length > 0 ? envInfo.ttMethods.join(', ') : '(无)'}
-            </div>
-          </List.Item>
-        </List>
+      {checking && (
+        <NoticeBar content="正在检测飞书环境..." color="warning" />
+      )}
+
+      {envInfo && !checking && (
+        <>
+          <List header="环境信息">
+            <List.Item extra={envInfo.isInFeishu ? '✅ 是' : '❌ 否'}>
+              在飞书客户端内
+            </List.Item>
+            <List.Item extra={envInfo.hasTT ? '✅ 存在' : '❌ 不存在'}>
+              window.tt 对象
+            </List.Item>
+            <List.Item extra={envInfo.hasTTJSBridge ? '✅ 存在' : '❌ 不存在'}>
+              window.ttjsBridge 对象
+            </List.Item>
+            <List.Item extra={envInfo.hasH5SDK ? '✅ 存在' : '❌ 不存在'}>
+              window.h5sdk 对象
+            </List.Item>
+            <List.Item extra={envInfo.hasBridge ? '✅ 存在' : '❌ 不存在'}>
+              window.bridge 对象
+            </List.Item>
+            <List.Item
+              extraStyle={{ maxWidth: '200px', fontSize: '12px', wordBreak: 'break-all' }}
+            >
+              User Agent
+              <div style={{ fontSize: '10px', color: '#999' }}>
+                {envInfo.ua}
+              </div>
+            </List.Item>
+            <List.Item>
+              tt 对象方法 ({envInfo.ttMethods.length} 个)
+              <div style={{ fontSize: '10px', color: '#999', textAlign: 'right' }}>
+                {envInfo.ttMethods.length > 0 ? envInfo.ttMethods.join(', ') : '(无)'}
+              </div>
+            </List.Item>
+          </List>
+
+          {!envInfo.hasTT && !envInfo.hasH5SDK && !envInfo.hasBridge && !envInfo.hasTTJSBridge && (
+            <NoticeBar
+              content="⚠️ 未检测到飞书 API 对象，可能原因：1. SDK 未加载 2. 需要在飞书应用中打开 3. 移动端 WebView 限制"
+              color="alert"
+            />
+          )}
+        </>
       )}
 
       <List header="操作">
@@ -174,6 +226,16 @@ export default function DebugFeishuPage() {
         >
           测试飞书免登
         </List.Item>
+        <List.Item
+          onClick={() => {
+            console.log('🔄 重新检测环境')
+            window.location.reload()
+          }}
+          clickable
+          arrow
+        >
+          重新检测
+        </List.Item>
         <List.Item
           onClick={() => navigate(-1)}
           clickable
@@ -183,13 +245,12 @@ export default function DebugFeishuPage() {
         </List.Item>
       </List>
 
-      <NoticeBar content="请在飞书客户端中打开此页面进行测试" color="info" />
-
-      <Card title="使用说明">
-        <p>1. 在飞书客户端中发送此链接给自己</p>
-        <p>2. 点击链接打开此调试页面</p>
-        <p>3. 查看环境信息</p>
-        <p>4. 点击"测试飞书免登"按钮</p>
+      <Card title="替代方案">
+        <p>如果飞书免登不可用，请使用以下方式登录：</p>
+        <p>1. 点击飞书消息中的"查看详情"按钮</p>
+        <p>2. 系统会跳转到登录页面</p>
+        <p>3. 使用邮箱/密码登录或扫码登录</p>
+        <p>4. 登录后返回即可进行审批操作</p>
       </Card>
     </div>
   )
diff --git a/frontend/src/pages/login/QRCodeLogin.tsx b/frontend/src/pages/login/QRCodeLogin.tsx
index a88f07f..436fd69 100644
--- a/frontend/src/pages/login/QRCodeLogin.tsx
+++ b/frontend/src/pages/login/QRCodeLogin.tsx
@@ -234,9 +234,18 @@ export default function QRCodeLogin({ visible, onClose }: QRCodeLoginProps) {
 
             Toast.show('登录成功')
             setTimeout(() => {
-              console.log('🚀 Navigating to dashboard...')
+              console.log('🚀 Navigating...')
               onClose()
-              navigate('/dashboard')
+
+              // 检查是否有 redirect 参数
+              const urlParams = new URLSearchParams(window.location.search)
+              const redirect = urlParams.get('redirect')
+              if (redirect) {
+                console.log('🔗 登录成功，跳转到:', redirect)
+                window.location.href = redirect
+              } else {
+                navigate('/dashboard')
+              }
             }, 500)
           } else if (result.data.status === 'scanning') {
             console.log('📱 Status: scanning')
diff --git a/frontend/src/pages/login/index.tsx b/frontend/src/pages/login/index.tsx
index 333bfee..7d01f49 100644
--- a/frontend/src/pages/login/index.tsx
+++ b/frontend/src/pages/login/index.tsx
@@ -218,7 +218,16 @@ export default function Login() {
       if (result.code === 0) {
         login(result.data.user, result.data.token)
         Toast.show('登录成功')
-        navigate('/dashboard')
+
+        // 检查是否有 redirect 参数
+        const urlParams = new URLSearchParams(window.location.search)
+        const redirect = urlParams.get('redirect')
+        if (redirect) {
+          console.log('🔗 登录成功，跳转到:', redirect)
+          window.location.href = redirect
+        } else {
+          navigate('/dashboard')
+        }
       } else {
         Toast.show(result.message || '登录失败')
         setLoading(false)