diff --git a/frontend/src/composables/useClipboard.ts b/frontend/src/composables/useClipboard.ts
index cafa3c9..1847339 100644
--- a/frontend/src/composables/useClipboard.ts
+++ b/frontend/src/composables/useClipboard.ts
@@ -1,4 +1,5 @@
 import { useToast } from './useToast'
+import { log } from '@/utils/logger'
 
 export function useClipboard() {
   const { success, error: showError } = useToast()
@@ -33,7 +34,7 @@ export function useClipboard() {
         document.body.removeChild(textArea)
       }
     } catch (err) {
-      console.error('复制失败:', err)
+      log.error('复制失败:', err)
       showError('复制失败，请手动选择文本进行复制')
       return false
     }
diff --git a/frontend/src/composables/useFormDialog.ts b/frontend/src/composables/useFormDialog.ts
index ca949e5..7d97a82 100644
--- a/frontend/src/composables/useFormDialog.ts
+++ b/frontend/src/composables/useFormDialog.ts
@@ -1,4 +1,4 @@
-import { ref, computed, watch, type Ref, type ComputedRef } from 'vue'
+import { computed, watch, type Ref, type ComputedRef } from 'vue'
 
 /**
  * 表单对话框通用逻辑
diff --git a/frontend/src/composables/useTTLAnalysis.ts b/frontend/src/composables/useTTLAnalysis.ts
index 71d8d96..264f85f 100644
--- a/frontend/src/composables/useTTLAnalysis.ts
+++ b/frontend/src/composables/useTTLAnalysis.ts
@@ -11,6 +11,7 @@ import {
   type IntervalTimelineResponse
 } from '@/api/cache'
 import type { ChartData } from 'chart.js'
+import { log } from '@/utils/logger'
 
 // 时间范围选项
 export const ANALYSIS_HOURS_OPTIONS = [
@@ -104,7 +105,7 @@ export function useTTLAnalysis() {
       }
     } catch (error) {
       showError('获取 TTL 分析失败')
-      console.error(error)
+      log.error('获取 TTL 分析失败', error)
     } finally {
       ttlAnalysisLoading.value = false
     }
@@ -119,7 +120,7 @@ export function useTTLAnalysis() {
       })
     } catch (error) {
       showError('获取缓存命中分析失败')
-      console.error(error)
+      log.error('获取缓存命中分析失败', error)
     } finally {
       hitAnalysisLoading.value = false
     }
@@ -136,7 +137,7 @@ export function useTTLAnalysis() {
       })
     } catch (error) {
       showError('获取用户时间线数据失败')
-      console.error(error)
+      log.error('获取用户时间线数据失败', error)
     } finally {
       userTimelineLoading.value = false
     }