diff --git a/frontend/src/api/category.ts b/frontend/src/api/category.ts
index 3909b3f..624becb 100644
--- a/frontend/src/api/category.ts
+++ b/frontend/src/api/category.ts
@@ -25,3 +25,8 @@ export function updateCategory(id: number, data: { name: string; type: string; i
 export function deleteCategory(id: number) {
   return request.delete(`/category/${id}`)
 }
+
+/** 批量删除分类，返回实际删除数量 */
+export function batchDeleteCategories(ids: number[]) {
+  return request.delete('/category/batch', { data: { ids } })
+}
diff --git a/frontend/src/api/tag.ts b/frontend/src/api/tag.ts
index 8647bcc..7256dc5 100644
--- a/frontend/src/api/tag.ts
+++ b/frontend/src/api/tag.ts
@@ -25,3 +25,8 @@ export function updateTag(id: number, data: { name: string; color?: string; sort
 export function deleteTag(id: number) {
   return request.delete(`/tag/${id}`)
 }
+
+/** 批量删除标签，返回实际删除数量 */
+export function batchDeleteTags(ids: number[]) {
+  return request.delete('/tag/batch', { data: { ids } })
+}
diff --git a/frontend/src/components/RuleApplyPreviewModal.vue b/frontend/src/components/RuleApplyPreviewModal.vue
index c47e399..ed5b69d 100644
--- a/frontend/src/components/RuleApplyPreviewModal.vue
+++ b/frontend/src/components/RuleApplyPreviewModal.vue
@@ -128,7 +128,7 @@ async function handleApply() {
 </script>
 
 <template>
-  <NModal v-model:show="showModel" preset="card" :title="t('rule.applyTitle')" style="width: min(1200px, 94vw)">
+  <NModal v-model:show="showModel" preset="card" :title="t('rule.applyTitle')" style="width: min(1400px, 96vw)">
     <NSpace vertical :size="12">
       <template v-if="preview">
         <NAlert v-if="matchedCount === 0" type="warning" :show-icon="true">{{ t('rule.applyNoMatch') }}</NAlert>
@@ -150,7 +150,7 @@ async function handleApply() {
         :columns="columns"
         :data="preview?.transactions || []"
         :loading="loading"
-        :max-height="420"
+        :max-height="560"
         :scroll-x="1250"
         :bordered="false"
         size="small"
diff --git a/frontend/src/locales/messages.ts b/frontend/src/locales/messages.ts
index 273b522..359a62c 100644
--- a/frontend/src/locales/messages.ts
+++ b/frontend/src/locales/messages.ts
@@ -1030,6 +1030,24 @@ export default {
       en: 'Are you sure you want to delete this category?',
       ja: 'このカテゴリを削除してもよろしいですか？',
     },
+    batchMode: { zh: '批量操作', en: 'Batch', ja: '一括操作' },
+    exitBatchMode: { zh: '退出批量', en: 'Exit Batch', ja: '一括終了' },
+    batchDelete: { zh: '批量删除', en: 'Batch Delete', ja: '一括削除' },
+    batchDeleteNone: {
+      zh: '请先选择要删除的分类',
+      en: 'Please select categories to delete',
+      ja: '削除するカテゴリを選択してください',
+    },
+    batchDeleteConfirm: {
+      zh: '确定删除选中的 {count} 个分类吗？',
+      en: 'Delete the {count} selected categor(y/ies)?',
+      ja: '選択した {count} 件のカテゴリを削除しますか？',
+    },
+    batchDeleted: {
+      zh: '已删除 {count} 个分类',
+      en: 'Deleted {count} categor(y/ies)',
+      ja: '{count} 件のカテゴリを削除しました',
+    },
   },
 
   // 标签管理
@@ -1049,6 +1067,24 @@ export default {
       en: 'This tag will be removed from all transactions. Delete it?',
       ja: '削除するとすべての取引記録からこのタグが外れます。削除してもよろしいですか？',
     },
+    batchMode: { zh: '批量操作', en: 'Batch', ja: '一括操作' },
+    exitBatchMode: { zh: '退出批量', en: 'Exit Batch', ja: '一括終了' },
+    batchDelete: { zh: '批量删除', en: 'Batch Delete', ja: '一括削除' },
+    batchDeleteNone: {
+      zh: '请先选择要删除的标签',
+      en: 'Please select tags to delete',
+      ja: '削除するタグを選択してください',
+    },
+    batchDeleteConfirm: {
+      zh: '确定删除选中的 {count} 个标签吗？删除后将从所有交易记录中移除。',
+      en: 'Delete the {count} selected tag(s)? They will be removed from all transactions.',
+      ja: '選択した {count} 件のタグを削除しますか？すべての取引記録から外れます。',
+    },
+    batchDeleted: {
+      zh: '已删除 {count} 个标签',
+      en: 'Deleted {count} tag(s)',
+      ja: '{count} 件のタグを削除しました',
+    },
   },
 
   // 交易渠道管理（用户自定义）
@@ -1123,6 +1159,8 @@ export default {
     status: { zh: '启用状态', en: 'Status', ja: '有効状態' },
     statusOn: { zh: '已启用', en: 'Enabled', ja: '有効' },
     statusOff: { zh: '已停用', en: 'Disabled', ja: '無効' },
+    batchMode: { zh: '批量操作', en: 'Batch', ja: '一括操作' },
+    exitBatchMode: { zh: '退出批量', en: 'Exit Batch', ja: '一括終了' },
     batchDelete: { zh: '批量删除', en: 'Batch Delete', ja: '一括削除' },
     batchDeleteNone: {
       zh: '请先选择要删除的规则',
diff --git a/frontend/src/views/CategoryManage.vue b/frontend/src/views/CategoryManage.vue
index ce97a67..13f51f3 100644
--- a/frontend/src/views/CategoryManage.vue
+++ b/frontend/src/views/CategoryManage.vue
@@ -16,7 +16,7 @@ import {
   NSelect,
 } from 'naive-ui'
 import type { DataTableColumns } from 'naive-ui'
-import { getCategoryPage, createCategory, updateCategory, deleteCategory } from '../api/category'
+import { getCategoryPage, createCategory, updateCategory, deleteCategory, batchDeleteCategories } from '../api/category'
 import { getAiConfig, suggestEmoji, parseCategoryByAi } from '../api/ai'
 import EmojiPicker from '../components/EmojiPicker.vue'
 import { usePageSizeOptions } from '../composables/usePageSizeOptions'
@@ -43,6 +43,9 @@ interface CategoryItem {
 const expenseList = ref<CategoryItem[]>([]) // 支出分类列表（当前页）
 const incomeList = ref<CategoryItem[]>([]) // 收入分类列表（当前页）
 const loading = ref(false) // 列表加载状态
+const selectionMode = ref(false) // 批量选择模式：开启后才显示多选列
+const checkedExpenseIds = ref<number[]>([]) // 支出分类表格多选选中的ID（用于批量删除）
+const checkedIncomeIds = ref<number[]>([]) // 收入分类表格多选选中的ID（用于批量删除）
 
 // 支出分类分页
 const expensePage = ref(1)
@@ -88,6 +91,8 @@ const typeOptions = computed(() => [
 /** 创建表格列配置 */
 function createColumns(): DataTableColumns<CategoryItem> {
   return [
+    // 多选列：仅在批量选择模式下显示，默认不渲染复选框
+    ...(selectionMode.value ? [{ type: 'selection' as const }] : []),
     {
       title: t('common.name'),
       key: 'name',
@@ -254,6 +259,47 @@ function handleDelete(id: number) {
   })
 }
 
+/** 进入批量选择模式（显示多选列） */
+function enterSelectionMode() {
+  selectionMode.value = true
+  checkedExpenseIds.value = []
+  checkedIncomeIds.value = []
+}
+
+/** 退出批量选择模式并清空已选 */
+function exitSelectionMode() {
+  selectionMode.value = false
+  checkedExpenseIds.value = []
+  checkedIncomeIds.value = []
+}
+
+/** 批量删除选中的分类：合并收入/支出两表勾选，确认后调用接口并刷新列表 */
+function handleBatchDelete() {
+  const ids = [...checkedExpenseIds.value, ...checkedIncomeIds.value]
+  const count = ids.length
+  if (count === 0) {
+    message.warning(t('category.batchDeleteNone'))
+    return
+  }
+  dialog.warning({
+    title: t('common.confirmDelete'),
+    content: t('category.batchDeleteConfirm', { count }),
+    positiveText: t('common.delete'),
+    negativeText: t('common.cancel'),
+    onPositiveClick: async () => {
+      try {
+        const res: any = await batchDeleteCategories(ids)
+        message.success(t('category.batchDeleted', { count: res.data }))
+        checkedExpenseIds.value = []
+        checkedIncomeIds.value = []
+        await fetchData()
+      } catch (e: any) {
+        message.error(e.message || t('common.deleteFailed'))
+      }
+    },
+  })
+}
+
 /** 加载 AI 启用状态，用于控制推荐入口显示 */
 async function loadAiConfig() {
   try {
@@ -319,18 +365,33 @@ onMounted(() => {
     <!-- 顶部：标题和新增按钮 -->
     <NSpace justify="space-between" style="margin-bottom: 16px">
       <h2 style="margin: 0">{{ t('category.title') }}</h2>
-      <NButton type="primary" @click="handleAdd">{{ t('category.add') }}</NButton>
+      <NSpace>
+        <NButton v-if="!selectionMode" @click="enterSelectionMode">{{ t('category.batchMode') }}</NButton>
+        <template v-else>
+          <NButton @click="exitSelectionMode">{{ t('category.exitBatchMode') }}</NButton>
+          <NButton
+            type="error"
+            :disabled="checkedExpenseIds.length === 0 && checkedIncomeIds.length === 0"
+            @click="handleBatchDelete"
+          >
+            {{ t('category.batchDelete') }}
+          </NButton>
+        </template>
+        <NButton type="primary" @click="handleAdd">{{ t('category.add') }}</NButton>
+      </NSpace>
     </NSpace>
 
     <!-- 支出分类列表 -->
     <h3>{{ t('category.expenseSection') }}</h3>
     <NDataTable
+      v-model:checked-row-keys="checkedExpenseIds"
       remote
       :columns="columns"
       :data="expenseList"
       :loading="loading"
       :bordered="false"
       :scroll-x="520"
+      :row-key="(row: CategoryItem) => row.id"
       :pagination="expensePagination"
       @update:page="handleExpensePageChange"
       @update:page-size="handleExpensePageSizeChange"
@@ -339,12 +400,14 @@ onMounted(() => {
     <!-- 收入分类列表 -->
     <h3 style="margin-top: 24px">{{ t('category.incomeSection') }}</h3>
     <NDataTable
+      v-model:checked-row-keys="checkedIncomeIds"
       remote
       :columns="columns"
       :data="incomeList"
       :loading="loading"
       :bordered="false"
       :scroll-x="520"
+      :row-key="(row: CategoryItem) => row.id"
       :pagination="incomePagination"
       @update:page="handleIncomePageChange"
       @update:page-size="handleIncomePageSizeChange"
diff --git a/frontend/src/views/EmailBillManage.vue b/frontend/src/views/EmailBillManage.vue
index 336acac..1eba9bc 100644
--- a/frontend/src/views/EmailBillManage.vue
+++ b/frontend/src/views/EmailBillManage.vue
@@ -416,6 +416,13 @@ async function handleTestConfig(row: EmailBillConfig) {
   }
 }
 
+/** 生成检查进度行首的时间戳前缀，形如 [21:35:26] */
+function checkTimestamp(): string {
+  const d = new Date()
+  const p = (n: number) => String(n).padStart(2, '0')
+  return `[${p(d.getHours())}:${p(d.getMinutes())}:${p(d.getSeconds())}] `
+}
+
 /** 立即检查：建立 SSE 连接并实时展示执行进度 */
 function handleCheckConfig(row: EmailBillConfig) {
   stopCheckStream()
@@ -434,7 +441,7 @@ function handleCheckConfig(row: EmailBillConfig) {
         } catch {
           count = 0
         }
-        checkLogs.value.push(t('emailBill.config.checkResult', { count }))
+        checkLogs.value.push(checkTimestamp() + t('emailBill.config.checkResult', { count }))
         finishCheck()
         await Promise.all([loadConfigs(), loadMessages()])
       } else if (event === 'failed') {
@@ -445,7 +452,8 @@ function handleCheckConfig(row: EmailBillConfig) {
           reason = ''
         }
         checkLogs.value.push(
-          reason ? `${t('emailBill.config.checkFailed')}：${reason}` : t('emailBill.config.checkFailed'),
+          checkTimestamp() +
+            (reason ? `${t('emailBill.config.checkFailed')}：${reason}` : t('emailBill.config.checkFailed')),
         )
         finishCheck()
         loadConfigs()
diff --git a/frontend/src/views/RuleManage.vue b/frontend/src/views/RuleManage.vue
index ff736cc..3a566e1 100644
--- a/frontend/src/views/RuleManage.vue
+++ b/frontend/src/views/RuleManage.vue
@@ -73,6 +73,7 @@ const searchKeyword = ref('')
 const filterEnabled = ref<string | null>(null) // 'ON' | 'OFF' | null
 const filterType = ref<string | null>(null)
 const checkedRuleIds = ref<number[]>([]) // 表格多选选中的规则ID（用于批量删除/批量应用）
+const selectionMode = ref(false) // 批量选择模式：开启后才显示多选列
 
 // 规则应用预览弹窗状态
 const showApplyModal = ref(false)
@@ -196,8 +197,8 @@ function conditionTags(row: RuleItem) {
 
 /** 创建表格列配置 */
 const columns = computed<DataTableColumns<RuleItem>>(() => [
-  // 多选列：用于批量操作（如批量删除）
-  { type: 'selection' },
+  // 多选列：仅在批量选择模式下显示，默认不渲染复选框
+  ...(selectionMode.value ? [{ type: 'selection' as const }] : []),
   {
     title: t('common.name'),
     key: 'name',
@@ -736,6 +737,18 @@ function handleBatchDelete() {
   })
 }
 
+/** 进入批量选择模式（显示多选列） */
+function enterSelectionMode() {
+  selectionMode.value = true
+  checkedRuleIds.value = []
+}
+
+/** 退出批量选择模式并清空已选 */
+function exitSelectionMode() {
+  selectionMode.value = false
+  checkedRuleIds.value = []
+}
+
 /** 打开单条规则的应用预览弹窗 */
 function handleApplyRule(row: RuleItem) {
   applyRuleIds.value = [row.id]
@@ -785,13 +798,17 @@ onMounted(() => {
     <NSpace justify="space-between" style="margin-bottom: 16px">
       <h2 style="margin: 0">{{ t('rule.title') }}</h2>
       <NSpace>
-        <NButton v-if="aiEnabled" @click="handleAiRuleOpen">{{ t('ai.rule.entry') }}</NButton>
-        <NButton :disabled="checkedRuleIds.length === 0" @click="handleApplySelected">
-          {{ t('rule.batchApply') }}
-        </NButton>
-        <NButton type="error" :disabled="checkedRuleIds.length === 0" @click="handleBatchDelete">
-          {{ t('rule.batchDelete') }}
-        </NButton>
+        <NButton v-if="aiEnabled && !selectionMode" @click="handleAiRuleOpen">{{ t('ai.rule.entry') }}</NButton>
+        <NButton v-if="!selectionMode" @click="enterSelectionMode">{{ t('rule.batchMode') }}</NButton>
+        <template v-else>
+          <NButton @click="exitSelectionMode">{{ t('rule.exitBatchMode') }}</NButton>
+          <NButton :disabled="checkedRuleIds.length === 0" @click="handleApplySelected">
+            {{ t('rule.batchApply') }}
+          </NButton>
+          <NButton type="error" :disabled="checkedRuleIds.length === 0" @click="handleBatchDelete">
+            {{ t('rule.batchDelete') }}
+          </NButton>
+        </template>
         <NButton type="primary" @click="handleAdd">{{ t('rule.add') }}</NButton>
       </NSpace>
     </NSpace>
diff --git a/frontend/src/views/TagManage.vue b/frontend/src/views/TagManage.vue
index fdaf58c..083c112 100644
--- a/frontend/src/views/TagManage.vue
+++ b/frontend/src/views/TagManage.vue
@@ -17,7 +17,7 @@ import {
   NTag,
 } from 'naive-ui'
 import type { DataTableColumns } from 'naive-ui'
-import { getTagPage, createTag, updateTag, deleteTag } from '../api/tag'
+import { getTagPage, createTag, updateTag, deleteTag, batchDeleteTags } from '../api/tag'
 import { getAiConfig, suggestColor } from '../api/ai'
 import { usePageSizeOptions } from '../composables/usePageSizeOptions'
 import { useTablePageSize } from '../composables/useTablePageSize'
@@ -41,6 +41,8 @@ interface TagItem {
 // 列表和弹窗状态
 const tags = ref<TagItem[]>([]) // 标签列表（当前页）
 const loading = ref(false) // 列表加载状态
+const checkedTagIds = ref<number[]>([]) // 表格多选选中的标签ID（用于批量删除）
+const selectionMode = ref(false) // 批量选择模式：开启后才显示多选列
 
 // 标签列表分页
 const page = ref(1)
@@ -81,6 +83,8 @@ const colorSwatches = [
 /** 创建表格列配置 */
 function createColumns(): DataTableColumns<TagItem> {
   return [
+    // 多选列：仅在批量选择模式下显示，默认不渲染复选框
+    ...(selectionMode.value ? [{ type: 'selection' as const }] : []),
     {
       title: t('tag.label'),
       key: 'name',
@@ -217,6 +221,43 @@ function handleDelete(id: number) {
   })
 }
 
+/** 进入批量选择模式（显示多选列） */
+function enterSelectionMode() {
+  selectionMode.value = true
+  checkedTagIds.value = []
+}
+
+/** 退出批量选择模式并清空已选 */
+function exitSelectionMode() {
+  selectionMode.value = false
+  checkedTagIds.value = []
+}
+
+/** 批量删除选中的标签：确认后调用接口并刷新列表 */
+function handleBatchDelete() {
+  const count = checkedTagIds.value.length
+  if (count === 0) {
+    message.warning(t('tag.batchDeleteNone'))
+    return
+  }
+  dialog.warning({
+    title: t('common.confirmDelete'),
+    content: t('tag.batchDeleteConfirm', { count }),
+    positiveText: t('common.delete'),
+    negativeText: t('common.cancel'),
+    onPositiveClick: async () => {
+      try {
+        const res: any = await batchDeleteTags(checkedTagIds.value)
+        message.success(t('tag.batchDeleted', { count: res.data }))
+        checkedTagIds.value = []
+        await fetchData()
+      } catch (e: any) {
+        message.error(e.message || t('common.deleteFailed'))
+      }
+    },
+  })
+}
+
 /** 加载 AI 启用状态，用于控制推荐入口显示 */
 async function loadAiConfig() {
   try {
@@ -257,17 +298,28 @@ onMounted(() => {
     <!-- 顶部：标题和新增按钮 -->
     <NSpace justify="space-between" style="margin-bottom: 16px">
       <h2 style="margin: 0">{{ t('tag.title') }}</h2>
-      <NButton type="primary" @click="handleAdd">{{ t('tag.add') }}</NButton>
+      <NSpace>
+        <NButton v-if="!selectionMode" @click="enterSelectionMode">{{ t('tag.batchMode') }}</NButton>
+        <template v-else>
+          <NButton @click="exitSelectionMode">{{ t('tag.exitBatchMode') }}</NButton>
+          <NButton type="error" :disabled="checkedTagIds.length === 0" @click="handleBatchDelete">
+            {{ t('tag.batchDelete') }}
+          </NButton>
+        </template>
+        <NButton type="primary" @click="handleAdd">{{ t('tag.add') }}</NButton>
+      </NSpace>
     </NSpace>
 
     <!-- 标签数据表格 -->
     <NDataTable
+      v-model:checked-row-keys="checkedTagIds"
       remote
       :columns="columns"
       :data="tags"
       :loading="loading"
       :bordered="false"
       :scroll-x="560"
+      :row-key="(row: TagItem) => row.id"
       :pagination="pagination"
       @update:page="handlePageChange"
       @update:page-size="handlePageSizeChange"
diff --git a/src/main/java/cn/rosercode/ledgerly/controller/CategoryController.java b/src/main/java/cn/rosercode/ledgerly/controller/CategoryController.java
index 50ac22d..dd89f17 100644
--- a/src/main/java/cn/rosercode/ledgerly/controller/CategoryController.java
+++ b/src/main/java/cn/rosercode/ledgerly/controller/CategoryController.java
@@ -18,6 +18,7 @@ import org.springframework.web.bind.annotation.RestController;
 
 import cn.rosercode.ledgerly.common.PageResult;
 import cn.rosercode.ledgerly.common.Result;
+import cn.rosercode.ledgerly.dto.BatchDeleteRequest;
 import cn.rosercode.ledgerly.dto.CategoryRequest;
 import cn.rosercode.ledgerly.service.CategoryService;
 import cn.rosercode.ledgerly.util.UserContext;
@@ -116,4 +117,17 @@ public class CategoryController {
         categoryService.delete(userId, id);
         return Result.success();
     }
+
+    /**
+     * 批量删除分类
+     *
+     * @param body 批量删除请求（分类ID列表）
+     * @return 实际删除的分类数
+     */
+    @DeleteMapping("/batch")
+    @Operation(summary = "批量删除分类", description = "根据分类ID列表批量删除当前用户的分类")
+    public Result<Integer> batchDelete(@RequestBody @Valid BatchDeleteRequest body) {
+        Long userId = UserContext.getUserId();
+        return Result.success(categoryService.batchDelete(userId, body.getIds()));
+    }
 }
diff --git a/src/main/java/cn/rosercode/ledgerly/controller/TagController.java b/src/main/java/cn/rosercode/ledgerly/controller/TagController.java
index d9d2c13..7b872f9 100644
--- a/src/main/java/cn/rosercode/ledgerly/controller/TagController.java
+++ b/src/main/java/cn/rosercode/ledgerly/controller/TagController.java
@@ -18,6 +18,7 @@ import org.springframework.web.bind.annotation.RestController;
 
 import cn.rosercode.ledgerly.common.PageResult;
 import cn.rosercode.ledgerly.common.Result;
+import cn.rosercode.ledgerly.dto.BatchDeleteRequest;
 import cn.rosercode.ledgerly.dto.TagRequest;
 import cn.rosercode.ledgerly.service.TagService;
 import cn.rosercode.ledgerly.util.UserContext;
@@ -112,4 +113,17 @@ public class TagController {
         tagService.delete(userId, id);
         return Result.success();
     }
+
+    /**
+     * 批量删除标签
+     *
+     * @param body 批量删除请求（标签ID列表）
+     * @return 实际删除的标签数
+     */
+    @DeleteMapping("/batch")
+    @Operation(summary = "批量删除标签", description = "根据标签ID列表批量删除当前用户的标签及其关联")
+    public Result<Integer> batchDelete(@RequestBody @Valid BatchDeleteRequest body) {
+        Long userId = UserContext.getUserId();
+        return Result.success(tagService.batchDelete(userId, body.getIds()));
+    }
 }
diff --git a/src/main/java/cn/rosercode/ledgerly/service/CategoryService.java b/src/main/java/cn/rosercode/ledgerly/service/CategoryService.java
index e4f6127..482b430 100644
--- a/src/main/java/cn/rosercode/ledgerly/service/CategoryService.java
+++ b/src/main/java/cn/rosercode/ledgerly/service/CategoryService.java
@@ -63,4 +63,13 @@ public interface CategoryService {
      * @param id 分类ID
      */
     void delete(Long userId, Long id);
+
+    /**
+     * 批量删除分类
+     *
+     * @param userId 用户ID
+     * @param ids    分类ID列表
+     * @return 实际删除的分类数
+     */
+    int batchDelete(Long userId, List<Long> ids);
 }
diff --git a/src/main/java/cn/rosercode/ledgerly/service/EmailBillCheckStreamService.java b/src/main/java/cn/rosercode/ledgerly/service/EmailBillCheckStreamService.java
index 6a4f3ed..d2a3496 100644
--- a/src/main/java/cn/rosercode/ledgerly/service/EmailBillCheckStreamService.java
+++ b/src/main/java/cn/rosercode/ledgerly/service/EmailBillCheckStreamService.java
@@ -1,6 +1,8 @@
 package cn.rosercode.ledgerly.service;
 
 import java.io.IOException;
+import java.time.LocalTime;
+import java.time.format.DateTimeFormatter;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ExecutorService;
@@ -28,6 +30,9 @@ import cn.rosercode.ledgerly.entity.EmailBillConfig;
 @Service
 public class EmailBillCheckStreamService {
 
+    /** 进度日志行首的时间戳格式 */
+    private static final DateTimeFormatter TIME_FORMAT = DateTimeFormatter.ofPattern("HH:mm:ss");
+
     private final EmailBillPuller puller;
     private final EmailBillConfigService configService;
 
@@ -62,7 +67,7 @@ public class EmailBillCheckStreamService {
         SseEmitter emitter = new SseEmitter(0L);
         if (running.putIfAbsent(configId, Boolean.TRUE) != null) {
             executor.submit(() -> {
-                trySend(emitter, "line", "已有检查正在进行中，请稍候");
+                trySend(emitter, "line", timestamp() + "已有检查正在进行中，请稍候");
                 complete(emitter);
             });
             return emitter;
@@ -90,7 +95,7 @@ public class EmailBillCheckStreamService {
             trySend(emitter, "meta", "{\"configId\":" + config.getId()
                     + ",\"name\":\"" + escape(config.getName()) + "\""
                     + ",\"host\":\"" + escape(config.getHost()) + "\"}");
-            int count = puller.pull(config, line -> trySend(emitter, "line", line));
+            int count = puller.pull(config, line -> trySend(emitter, "line", timestamp() + line));
             trySend(emitter, "done", "{\"count\":" + count + "}");
         } catch (RuntimeException e) {
             log.warn("邮箱账单立即检查失败: configId={}, error={}", config.getId(), e.getMessage());
@@ -101,6 +106,15 @@ public class EmailBillCheckStreamService {
         }
     }
 
+    /**
+     * 生成进度日志行首的时间戳前缀，形如 {@code [21:35:26] }。
+     *
+     * @return 时间戳前缀
+     */
+    private String timestamp() {
+        return "[" + LocalTime.now().format(TIME_FORMAT) + "] ";
+    }
+
     /**
      * 推送一个 SSE 事件，客户端已断开时静默失败。
      *
diff --git a/src/main/java/cn/rosercode/ledgerly/service/TagService.java b/src/main/java/cn/rosercode/ledgerly/service/TagService.java
index 1bfdf91..b9b2f63 100644
--- a/src/main/java/cn/rosercode/ledgerly/service/TagService.java
+++ b/src/main/java/cn/rosercode/ledgerly/service/TagService.java
@@ -55,4 +55,13 @@ public interface TagService {
      * @param id     标签ID
      */
     void delete(Long userId, Long id);
+
+    /**
+     * 批量删除标签，同时清理交易与标签、规则与标签的关联
+     *
+     * @param userId 用户ID
+     * @param ids    标签ID列表
+     * @return 实际删除的标签数
+     */
+    int batchDelete(Long userId, List<Long> ids);
 }
diff --git a/src/main/java/cn/rosercode/ledgerly/service/impl/CategoryServiceImpl.java b/src/main/java/cn/rosercode/ledgerly/service/impl/CategoryServiceImpl.java
index 588626e..efd14ae 100644
--- a/src/main/java/cn/rosercode/ledgerly/service/impl/CategoryServiceImpl.java
+++ b/src/main/java/cn/rosercode/ledgerly/service/impl/CategoryServiceImpl.java
@@ -143,4 +143,31 @@ public class CategoryServiceImpl implements CategoryService {
         log.info("删除分类: userId={}, id={}", userId, id);
     }
 
+    /**
+     * {@inheritDoc}
+     *
+     * 仅删除归属当前用户的分类，返回实际删除数。
+     */
+    @Override
+    @Transactional
+    public int batchDelete(Long userId, List<Long> ids) {
+        if (ids == null || ids.isEmpty()) {
+            return 0;
+        }
+        // 仅保留属于当前用户的分类ID
+        List<Long> ownedIds = categoryMapper.selectList(new LambdaQueryWrapper<Category>()
+                        .select(Category::getId)
+                        .eq(Category::getUserId, userId)
+                        .in(Category::getId, ids))
+                .stream()
+                .map(Category::getId)
+                .collect(Collectors.toList());
+        if (ownedIds.isEmpty()) {
+            return 0;
+        }
+        int deleted = categoryMapper.deleteByIds(ownedIds);
+        log.info("批量删除分类: userId={}, 请求={}, 实际={}", userId, ids.size(), deleted);
+        return deleted;
+    }
+
 }
diff --git a/src/main/java/cn/rosercode/ledgerly/service/impl/TagServiceImpl.java b/src/main/java/cn/rosercode/ledgerly/service/impl/TagServiceImpl.java
index cfc7cba..aaeaac0 100644
--- a/src/main/java/cn/rosercode/ledgerly/service/impl/TagServiceImpl.java
+++ b/src/main/java/cn/rosercode/ledgerly/service/impl/TagServiceImpl.java
@@ -150,4 +150,36 @@ public class TagServiceImpl implements TagService {
         log.info("删除标签: userId={}, id={}", userId, id);
     }
 
+    /**
+     * {@inheritDoc}
+     *
+     * 仅删除归属当前用户的标签，先清理交易关联与规则关联再批量删除，返回实际删除数。
+     */
+    @Override
+    @Transactional
+    public int batchDelete(Long userId, List<Long> ids) {
+        if (ids == null || ids.isEmpty()) {
+            return 0;
+        }
+        // 仅保留属于当前用户的标签ID
+        List<Long> ownedIds = tagMapper.selectList(new LambdaQueryWrapper<Tag>()
+                        .select(Tag::getId)
+                        .eq(Tag::getUserId, userId)
+                        .in(Tag::getId, ids))
+                .stream()
+                .map(Tag::getId)
+                .collect(Collectors.toList());
+        if (ownedIds.isEmpty()) {
+            return 0;
+        }
+        // 先清理交易与标签、规则与标签的关联，再批量删除标签
+        transactionTagMapper.delete(new LambdaQueryWrapper<TransactionTag>()
+                .in(TransactionTag::getTagId, ownedIds));
+        ruleTagMapper.delete(new LambdaQueryWrapper<RuleTag>()
+                .in(RuleTag::getTagId, ownedIds));
+        int deleted = tagMapper.deleteByIds(ownedIds);
+        log.info("批量删除标签: userId={}, 请求={}, 实际={}", userId, ids.size(), deleted);
+        return deleted;
+    }
+
 }