diff --git a/frontend/app/paper/page.tsx b/frontend/app/paper/page.tsx
index a42ca33..226d618 100644
--- a/frontend/app/paper/page.tsx
+++ b/frontend/app/paper/page.tsx
@@ -1,7 +1,7 @@
 "use client";
 import { useState, useEffect } from "react";
 import Link from "next/link";
-import { authFetch } from "@/lib/auth";
+import { authFetch, useAuth } from "@/lib/auth";
 import { LineChart, Line, XAxis, YAxis, Tooltip, ResponsiveContainer, ReferenceLine, Area, AreaChart } from "recharts";
 
 // ─── 工具函数 ────────────────────────────────────────────────────
@@ -316,11 +316,9 @@ function StatsPanel() {
 // ─── 主页面 ──────────────────────────────────────────────────────
 
 export default function PaperTradingPage() {
-  const [isLoggedIn, setIsLoggedIn] = useState(false);
-  useEffect(() => {
-    const token = typeof window !== "undefined" ? localStorage.getItem("token") : null;
-    setIsLoggedIn(!!token);
-  }, []);
+  const { isLoggedIn, loading } = useAuth();
+
+  if (loading) return <div className="text-center text-slate-400 py-8">加载中...</div>;
 
   if (!isLoggedIn) return (
     <div className="flex flex-col items-center justify-center h-64 gap-4">