diff --git a/frontend/src/app/admin/page.tsx b/frontend/src/app/admin/page.tsx
index dad5e91..09e7a1b 100644
--- a/frontend/src/app/admin/page.tsx
+++ b/frontend/src/app/admin/page.tsx
@@ -2,7 +2,9 @@
 
 import { FormEvent, useEffect, useState } from 'react';
 
-const API_URL = process.env.API_URL || 'http://localhost:24731';
+const API_URL = typeof window !== 'undefined'
+  ? (process.env.NEXT_PUBLIC_API_URL ?? '')
+  : (process.env.API_URL || 'http://localhost:24731');
 const contentTypes = [
   { value: 'page', label: '页面' }, { value: 'article', label: '文章' }, { value: 'case', label: '案例' },
   { value: 'faq', label: '常见问题' }, { value: 'capability', label: '企业能力' }, { value: 'service', label: '服务' },