diff --git a/src/middleware.ts b/src/middleware.ts
index a099114..f757e18 100644
--- a/src/middleware.ts
+++ b/src/middleware.ts
@@ -5,6 +5,12 @@ export default withAuth(
   function middleware(req) {
     const token = req.nextauth.token;
     const path = req.nextUrl.pathname;
+    const host = req.headers.get("host") || "";
+
+    // ai.zhuig.com 根路径 → 重定向到 /admin
+    if (host.startsWith("ai.zhuig.com") && path === "/") {
+      return NextResponse.redirect(new URL("/admin", req.url));
+    }
 
     // 行业情报（/community）暂不对外开放：需登录后访问
     if (path.startsWith("/community")) {
@@ -77,5 +83,5 @@ export default withAuth(
 );
 
 export const config = {
-  matcher: ["/admin/:path*", "/api/user/:path*", "/api/admin/:path*", "/community/:path*", "/api/community/:path*"],
+  matcher: ["/", "/admin/:path*", "/api/user/:path*", "/api/admin/:path*", "/community/:path*", "/api/community/:path*"],
 };