diff --git a/frontend/src/utils/request.ts b/frontend/src/utils/request.ts
index da5b78c..79a474e 100644
--- a/frontend/src/utils/request.ts
+++ b/frontend/src/utils/request.ts
@@ -25,6 +25,10 @@ api.interceptors.response.use(
   (response) => response.data,
   (error) => {
     const message = error.response?.data?.error || error.message || 'Request failed'
+    
+    // 如果请求标记为静默失败，不显示任何消息
+    const silent = error.config?.silent
+    
     if (error.response?.status === 401) {
       const isLoginRequest = error.config?.url?.includes('/auth/login')
       const isRegisterRequest = error.config?.url?.includes('/auth/register')
@@ -38,21 +42,26 @@ api.interceptors.response.use(
         error.config?.url?.includes('/lotteries')
 
       if (isLoginRequest || isRegisterRequest) {
-        ElMessage.error(message)
-      } else if (!isPublicRequest) {
+        if (!silent) ElMessage.error(message)
+      } else if (!isPublicRequest && !silent) {
         localStorage.removeItem('token')
         localStorage.removeItem('user')
         ElMessage.error('请先登录')
         router.push('/login')
-      } else {
-        // 公开接口的 401 错误静默处理，不跳转登录
-        console.warn('Public API 401:', error.config?.url)
       }
-    } else {
+      // 公开接口或静默请求的 401 错误不显示消息也不跳转
+    } else if (!silent) {
       ElMessage.error(message)
     }
     return Promise.reject(error)
   },
 )
 
-export default api
+// 扩展 axios 类型以支持 silent 选项
+declare module 'axios' {
+  interface AxiosRequestConfig {
+    silent?: boolean
+  }
+}
+
+export default api
\ No newline at end of file
diff --git a/frontend/src/views/user/ProductDetail.vue b/frontend/src/views/user/ProductDetail.vue
index e9ceffe..9b527e3 100644
--- a/frontend/src/views/user/ProductDetail.vue
+++ b/frontend/src/views/user/ProductDetail.vue
@@ -93,10 +93,16 @@ function hasEnoughCredit(): boolean {
 
 // 获取用户资格信息
 async function fetchUserCredits() {
+  // 未登录时静默跳过，不发起请求
+  const token = localStorage.getItem('token')
+  if (!token) return
+  
   try {
     const res: any = await userApi.getProfile()
     userCredits.value = res.data?.purchase_credits || 0
-  } catch {}
+  } catch {
+    // 静默处理错误
+  }
 }
 
 onMounted(async () => {