diff --git a/miniprogram/src/pages-extra/event-detail/index.jsx b/miniprogram/src/pages-extra/event-detail/index.jsx
index 62c376a..f49be46 100644
--- a/miniprogram/src/pages-extra/event-detail/index.jsx
+++ b/miniprogram/src/pages-extra/event-detail/index.jsx
@@ -1,5 +1,5 @@
 import { View, Text, Input, Textarea, Picker, Button, Image, RichText } from '@tarojs/components';
-import Taro from '@tarojs/taro';
+import Taro, { useDidShow } from '@tarojs/taro';
 import { useState, useEffect } from 'react';
 import { getEventDetail, submitBooking, getMyBookingForEvent, fmtEvt, fmtEvtRange, payBooking, bookingPayStatus, requestWxPay, priceText } from '@/utils/booking';
 
@@ -14,7 +14,7 @@ const sanitizeRichHtml = (html) => String(html || '')
     const clean = attrs.replace(/\swidth\s*=\s*"[^"]*"/i, '').replace(/\sheight\s*=\s*"[^"]*"/i, '');
     return `<video${clean} style="max-width:100%;height:auto;">`;
   });
-import { isAuthed, getUser, wxLogin, wxPhoneBind, phoneLogin, bindPhone, sendCode } from '@/utils/auth';
+import { isAuthed, getUser, wxLogin, wxPhoneBind, phoneLogin, bindPhone, sendCode, getMe } from '@/utils/auth';
 import { useEventShare } from '@/utils/share';
 import coverWide from '@/assets/huodong-wide.png';
 import Skeleton from '@/components/skeleton';
@@ -128,6 +128,27 @@ export default function EventDetail() {
     }
   }, [id]);
 
+  /* 每次页面显示时同步登录态与手机号绑定状态（解决 tab 切换/页面返回后登录态不同步问题）。
+     已登录则调用 /auth/me 从服务端拉取最新资料（含 phoneBound），避免本地缓存过期；
+     未登录则清空 phoneBound/myBook。鉴权失败（token 失效）静默处理，api.js 已清 token。 */
+  useDidShow(() => {
+    const nowAuthed = isAuthed();
+    setAuthed(nowAuthed);
+    if (nowAuthed) {
+      getMe().then((r) => {
+        if (r && r.ok && r.user) {
+          setPhoneBound(!!r.user.phoneBound);
+        }
+      }).catch(() => {});
+      if (id) {
+        getMyBookingForEvent(id).then((d) => setMyBook(d || null)).catch(() => {});
+      }
+    } else {
+      setPhoneBound(false);
+      setMyBook(null);
+    }
+  });
+
   const gateSend = async () => {
     if (!/^1\d{10}$/.test(gatePhone)) { setErr('请输入正确的 11 位手机号'); return; }
     setErr('');