diff --git a/persona-studio/backend/server.js b/persona-studio/backend/server.js
index f8c4ea12..ae561b8f 100644
--- a/persona-studio/backend/server.js
+++ b/persona-studio/backend/server.js
@@ -12,7 +12,17 @@ const apikeyRoutes = require('./routes/apikey');
 const previewRoutes = require('./routes/preview');
 
 const app = express();
-app.use(cors());
+app.use(cors({
+  origin: [
+    'http://localhost:3002',
+    'http://127.0.0.1:3002',
+    'http://8.155.62.235',
+    'https://guanghulab.com',
+    'http://guanghulab.com',
+    'https://qinfendebingshuo.github.io'
+  ],
+  credentials: true
+}));
 app.use(express.json({ limit: '2mb' }));
 
 // ── 静态文件：persona-studio 前端 ──
diff --git a/persona-studio/frontend/chat.js b/persona-studio/frontend/chat.js
index 05158e9f..b4a38bf7 100644
--- a/persona-studio/frontend/chat.js
+++ b/persona-studio/frontend/chat.js
@@ -15,7 +15,8 @@ const API_BASE = (function () {
   if (location.hostname === 'localhost' || location.hostname === '127.0.0.1') {
     return 'http://localhost:3002';
   }
-  return 'https://guanghulab.com';
+  // 非本地环境统一使用当前域名 + 协议，走 Nginx 转发
+  return location.protocol + '//' + location.host;
 })();
 
 /* ---- State ---- */
diff --git a/persona-studio/frontend/index.html b/persona-studio/frontend/index.html
index 1835efe8..d9299f13 100644
--- a/persona-studio/frontend/index.html
+++ b/persona-studio/frontend/index.html
@@ -152,7 +152,8 @@
       if (location.hostname === 'localhost' || location.hostname === '127.0.0.1') {
         return 'http://localhost:3002';
       }
-      return 'https://guanghulab.com';
+      // 非本地环境统一使用当前域名 + 协议，走 Nginx 转发
+      return location.protocol + '//' + location.host;
     }
 
     function normalizeApiBase(base) {