diff --git a/zhiyin-app/package.json b/zhiyin-app/package.json
index 90b73e1..975fbaf 100644
--- a/zhiyin-app/package.json
+++ b/zhiyin-app/package.json
@@ -3,9 +3,9 @@
   "version": "1.0.0",
   "scripts": {
     "dev:mp-weixin": "uni -p mp-weixin",
-    "build:mp-weixin": "uni build -p mp-weixin && cp -n static/avatar-*.png dist/build/mp-weixin/static/ 2>/dev/null; true",
+    "build:mp-weixin": "uni build -p mp-weixin && cp -f static/avatar-*.png dist/build/mp-weixin/static/ 2>/dev/null; true",
     "dev:h5": "uni",
-    "build:h5": "uni build && cp -n static/avatar-*.png dist/build/h5/static/ 2>/dev/null; true",
+    "build:h5": "uni build && cp -f static/avatar-*.png dist/build/h5/static/ 2>/dev/null; true",
     "test": "vitest run",
     "test:watch": "vitest"
   },
diff --git a/zhiyin-app/src/pages/user/user.vue b/zhiyin-app/src/pages/user/user.vue
index d5a53d5..68e8fa5 100644
--- a/zhiyin-app/src/pages/user/user.vue
+++ b/zhiyin-app/src/pages/user/user.vue
@@ -6,6 +6,7 @@
         <image class="avatar" :src="userInfo.avatar || '/static/avatar-default.png'" mode="aspectFill" />
         <view class="profile-info">
           <text class="nickname">{{ userInfo.nickname || '未设置昵称' }}</text>
+          <text class="user-id">ID: {{ maskedId }}</text>
           <view class="plan-badge">{{ userInfo.plan || '免费版' }}</view>
         </view>
         <text class="header-arrow">›</text>
@@ -103,6 +104,10 @@ const stats = ref({ interviewCount: 0, avgScore: '--', completedCount: 0 })
 const token = ref('')
 
 const isLoggedIn = computed(() => !!token.value)
+const maskedId = computed(() => {
+  const id = userInfo.value.id || ''
+  return id.length > 6 ? `****${id.slice(-6)}` : id || '--'
+})
 
 const refreshState = () => {
   token.value = uni.getStorageSync('token') || ''
@@ -177,6 +182,7 @@ const doLogout = () => {
 .profile-info { flex: 1; display: flex; flex-direction: column; }
 .nickname { font-size: 34rpx; font-weight: 700; color: #FFFFFF; }
 .plan-badge { font-size: 20rpx; color: rgba(255,255,255,0.9); background: rgba(255,255,255,0.2); padding: 4rpx 14rpx; border-radius: 8rpx; align-self: flex-start; margin-top: 8rpx; }
+.user-id { font-size: 20rpx; color: rgba(255,255,255,0.5); margin-top: 4rpx; }
 .header-arrow { font-size: 36rpx; color: rgba(255,255,255,0.5); }
 .stats-bar { display: flex; align-items: center; background: rgba(255,255,255,0.15); border-radius: var(--radius-lg); padding: 24rpx 0; }
 .stat { flex: 1; display: flex; flex-direction: column; align-items: center; }