fix: 访问前台跳转+暗色背景+英文+白字修复

frontend/src/components/layout/AdminLayout.tsx

@@ -160,7 +160,7 @@ const AdminLayout: React.FC = () => {
   };
 
   const handleVisitFrontend = () => {
-    const url = window.location.origin + window.location.pathname + '#/portal';
+    const url = window.location.origin + window.location.pathname + '#/chat';
     window.open(url, '_blank');
   };