diff --git a/frontend/src/views/user/Announcements.vue b/frontend/src/views/user/Announcements.vue
index 6d240fe..1df75f9 100644
--- a/frontend/src/views/user/Announcements.vue
+++ b/frontend/src/views/user/Announcements.vue
@@ -492,6 +492,7 @@ import SelectItem from '@/components/ui/select-item.vue'
 import { AlertDialog } from '@/components/common'
 import { Bell, AlertCircle, AlertTriangle, Info, Pin, Wrench, Loader2, Plus, SquarePen, Trash2 } from 'lucide-vue-next'
 import { useToast } from '@/composables/useToast'
+import { log } from '@/utils/logger'
 import { marked } from 'marked'
 import { sanitizeMarkdown } from '@/utils/sanitize'
 
@@ -544,25 +545,13 @@ async function loadAnnouncements(page = 1) {
     total.value = response.total
     unreadCount.value = response.unread_count || 0
   } catch (error) {
-    console.error('加载公告失败:', error)
+    log.error('加载公告失败:', error)
     showError('加载公告失败')
   } finally {
     loading.value = false
   }
 }
 
-async function markAsRead(announcement: Announcement) {
-  try {
-    await announcementApi.markAsRead(announcement.id)
-    announcement.is_read = true
-    unreadCount.value = Math.max(0, unreadCount.value - 1)
-    success('已标记为已读')
-  } catch (error) {
-    console.error('标记失败:', error)
-    showError('标记失败')
-  }
-}
-
 async function viewAnnouncementDetail(announcement: Announcement) {
   // 标记为已读
   if (!announcement.is_read && !isAdmin.value) {
@@ -571,7 +560,7 @@ async function viewAnnouncementDetail(announcement: Announcement) {
       announcement.is_read = true
       unreadCount.value = Math.max(0, unreadCount.value - 1)
     } catch (error) {
-      console.error('标记已读失败:', error)
+      log.error('标记已读失败:', error)
     }
   }
 
@@ -614,7 +603,7 @@ async function toggleAnnouncementPin(announcement: Announcement, newStatus: bool
     announcement.is_pinned = newStatus
     success(newStatus ? '已置顶' : '已取消置顶')
   } catch (error) {
-    console.error('更新置顶状态失败:', error)
+    log.error('更新置顶状态失败:', error)
     showError('更新置顶状态失败')
   }
 }
@@ -627,7 +616,7 @@ async function toggleAnnouncementActive(announcement: Announcement, newStatus: b
     announcement.is_active = newStatus
     success(newStatus ? '已启用' : '已禁用')
   } catch (error) {
-    console.error('更新启用状态失败:', error)
+    log.error('更新启用状态失败:', error)
     showError('更新启用状态失败')
   }
 }
@@ -652,7 +641,7 @@ async function saveAnnouncement() {
     dialogOpen.value = false
     loadAnnouncements(currentPage.value)
   } catch (error) {
-    console.error('保存失败:', error)
+    log.error('保存失败:', error)
     showError('保存失败')
   } finally {
     saving.value = false
@@ -674,7 +663,7 @@ async function deleteAnnouncement() {
     deleteDialogOpen.value = false
     loadAnnouncements(currentPage.value)
   } catch (error) {
-    console.error('删除失败:', error)
+    log.error('删除失败:', error)
     showError('删除失败')
   } finally {
     deleting.value = false
@@ -707,19 +696,6 @@ function getIconColor(type: string) {
   }
 }
 
-function getIconBgClass(type: string) {
-  switch (type) {
-    case 'important':
-      return 'bg-red-50 dark:bg-red-900/20'
-    case 'warning':
-      return 'bg-yellow-50 dark:bg-yellow-900/20'
-    case 'maintenance':
-      return 'bg-orange-50 dark:bg-orange-900/20'
-    default:
-      return 'bg-primary/10'
-  }
-}
-
 function getTypeTextColor(type: string): string {
   switch (type) {
     case 'important':
@@ -733,19 +709,6 @@ function getTypeTextColor(type: string): string {
   }
 }
 
-function getTypeBadgeVariant(type: string): 'default' | 'success' | 'destructive' | 'warning' | 'secondary' {
-  switch (type) {
-    case 'important':
-      return 'destructive'
-    case 'warning':
-      return 'warning'
-    case 'maintenance':
-      return 'secondary'
-    default:
-      return 'default'
-  }
-}
-
 function getTypeLabel(type: string): string {
   switch (type) {
     case 'important':
@@ -791,7 +754,7 @@ function renderMarkdown(content: string): string {
 function getPlainText(content: string): string {
   // 简单地移除 Markdown 标记，用于预览
   return content
-    .replace(/[#*_`~\[\]()]/g, '')
+    .replace(/[#*_`~[\]()]/g, '')
     .replace(/\n+/g, ' ')
     .trim()
     .substring(0, 200)
diff --git a/frontend/src/views/user/ModelCatalog.vue b/frontend/src/views/user/ModelCatalog.vue
index 6496558..a83febc 100644
--- a/frontend/src/views/user/ModelCatalog.vue
+++ b/frontend/src/views/user/ModelCatalog.vue
@@ -282,6 +282,7 @@ import {
 } from '@/api/endpoints'
 import UserModelDetailDrawer from './components/UserModelDetailDrawer.vue'
 import { useRowClick } from '@/composables/useRowClick'
+import { log } from '@/utils/logger'
 
 const { success, error: showError } = useToast()
 
@@ -377,7 +378,7 @@ async function toggleCapability(modelName: string, capName: string) {
     // 更新本地状态
     modelCapabilitySettings.value = newSettings
   } catch (err) {
-    console.error('保存能力配置失败:', err)
+    log.error('保存能力配置失败:', err)
     showError('保存失败，请重试')
   } finally {
     savingCapability.value = null
@@ -429,7 +430,7 @@ async function loadModels() {
     const response = await getPublicGlobalModels({ limit: 1000 })
     models.value = response.models || []
   } catch (err: any) {
-    console.error('加载模型失败:', err)
+    log.error('加载模型失败:', err)
     showError(err.response?.data?.detail || err.message, '加载模型失败')
   } finally {
     loading.value = false
@@ -445,7 +446,7 @@ async function loadCapabilities() {
     availableCapabilities.value = userCaps
     allCapabilities.value = allCaps
   } catch (err) {
-    console.error('Failed to load capabilities:', err)
+    log.error('Failed to load capabilities:', err)
   }
 }
 
@@ -454,7 +455,7 @@ async function loadModelCapabilitySettings() {
     const response = await meApi.getModelCapabilitySettings()
     modelCapabilitySettings.value = response.model_capability_settings || {}
   } catch (err) {
-    console.error('Failed to load model capability settings:', err)
+    log.error('Failed to load model capability settings:', err)
   }
 }
 
@@ -484,7 +485,7 @@ async function copyToClipboard(text: string) {
     await navigator.clipboard.writeText(text)
     success('已复制')
   } catch (err) {
-    console.error('复制失败:', err)
+    log.error('复制失败:', err)
     showError('复制失败')
   }
 }
diff --git a/frontend/src/views/user/MyApiKeys.vue b/frontend/src/views/user/MyApiKeys.vue
index c58d2ef..87a2422 100644
--- a/frontend/src/views/user/MyApiKeys.vue
+++ b/frontend/src/views/user/MyApiKeys.vue
@@ -474,6 +474,7 @@ import {
 import RefreshButton from '@/components/ui/refresh-button.vue'
 import { Plus, Key, Copy, Trash2, Loader2, Activity, CheckCircle, Power, Check } from 'lucide-vue-next'
 import { useToast } from '@/composables/useToast'
+import { log } from '@/utils/logger'
 import { computed } from 'vue'
 
 const { success, error: showError } = useToast()
@@ -516,7 +517,7 @@ async function loadCapabilities() {
   try {
     availableCapabilities.value = await getAllCapabilities()
   } catch (error) {
-    console.error('Failed to load capabilities:', error)
+    log.error('Failed to load capabilities:', error)
   }
 }
 
@@ -525,7 +526,7 @@ async function loadApiKeys() {
   try {
     apiKeys.value = await meApi.getApiKeys()
   } catch (error: any) {
-    console.error('加载 API 密钥失败:', error)
+    log.error('加载 API 密钥失败:', error)
     if (!error.response) {
       showError('无法连接到服务器，请检查后端服务是否运行')
     } else if (error.response.status === 401) {
@@ -554,7 +555,7 @@ async function createApiKey() {
     await loadApiKeys()
     success('API 密钥创建成功')
   } catch (error) {
-    console.error('创建 API 密钥失败:', error)
+    log.error('创建 API 密钥失败:', error)
     showError('创建 API 密钥失败')
   } finally {
     creating.value = false
@@ -576,7 +577,7 @@ async function deleteApiKey() {
     showDeleteDialog.value = false
     success('API 密钥已删除')
   } catch (error) {
-    console.error('删除 API 密钥失败:', error)
+    log.error('删除 API 密钥失败:', error)
     showError('删除 API 密钥失败')
   } finally {
     deleting.value = false
@@ -593,7 +594,7 @@ async function toggleApiKey(apiKey: ApiKey) {
     }
     success(updated.is_active ? '密钥已启用' : '密钥已禁用')
   } catch (error) {
-    console.error('切换密钥状态失败:', error)
+    log.error('切换密钥状态失败:', error)
     showError('操作失败')
   }
 }
@@ -635,7 +636,7 @@ async function toggleCapability(apiKey: ApiKey, capName: string) {
       apiKeys.value[index].force_capabilities = capabilitiesData
     }
   } catch (err) {
-    console.error('保存能力配置失败:', err)
+    log.error('保存能力配置失败:', err)
     showError('保存失败，请重试')
   } finally {
     savingCapability.value = null
@@ -649,7 +650,7 @@ async function copyApiKey(apiKey: ApiKey) {
     await copyTextToClipboard(response.key, false) // 不显示内部提示
     success('完整密钥已复制到剪贴板')
   } catch (error) {
-    console.error('复制密钥失败:', error)
+    log.error('复制密钥失败:', error)
     showError('复制失败，请重试')
   }
 }
@@ -681,7 +682,7 @@ async function copyTextToClipboard(text: string, showToast: boolean = true) {
       }
     }
   } catch (error) {
-    console.error('复制失败:', error)
+    log.error('复制失败:', error)
     showError('复制失败，请手动选择文本进行复制')
   }
 }