diff --git a/client/src/components/base/AppPageHeader.vue b/client/src/components/base/AppPageHeader.vue
index 015d5ca..9ce8688 100644
--- a/client/src/components/base/AppPageHeader.vue
+++ b/client/src/components/base/AppPageHeader.vue
@@ -1,21 +1,59 @@
 <script setup lang="ts">
-withDefaults(
+import { useRouter } from 'vue-router'
+import AppIcon from './AppIcon.vue'
+
+const props = withDefaults(
   defineProps<{
-    title: string
+    title?: string
     subtitle?: string
+    /** page：一级页头（h1+副标题+右段动作）；detail：详情/子页返回头（紧凑标题，默认带返回） */
+    size?: 'page' | 'detail'
+    /** 是否渲染左段返回按钮 */
+    back?: boolean
+    /** 返回目标；缺省时使用 history.back() */
+    backTo?: string
     /** 移动端是否纵向堆叠（部分页面移动版按钮在标题下方） */
     stackMobile?: boolean
+    /** 移动端吸顶（替代原 layout topbar 的吸顶行为；仅移动端生效） */
+    stickyMobile?: boolean
   }>(),
-  { subtitle: '', stackMobile: false }
+  { title: '', subtitle: '', size: 'page', back: false, backTo: '', stackMobile: false, stickyMobile: false }
 )
+
+const router = useRouter()
+
+function goBack() {
+  if (props.backTo) router.push(props.backTo)
+  else router.back()
+}
 </script>
 
 <template>
-  <header class="page-head" :class="{ 'page-head--stack': stackMobile }">
+  <header
+    class="page-head"
+    :class="{
+      'page-head--stack': stackMobile,
+      'page-head--detail': size === 'detail',
+      'page-head--sticky-mobile': stickyMobile
+    }"
+  >
+    <button
+      v-if="back"
+      type="button"
+      class="page-head__back"
+      aria-label="返回"
+      @click="goBack"
+    >
+      <AppIcon name="chevron-left" :size="20" />
+    </button>
+
     <div class="page-head__title">
-      <h1>{{ title }}</h1>
-      <p v-if="subtitle">{{ subtitle }}</p>
+      <slot name="title">
+        <h1 v-if="title">{{ title }}</h1>
+        <p v-if="subtitle">{{ subtitle }}</p>
+      </slot>
     </div>
+
     <div v-if="$slots.default" class="page-head__actions"><slot /></div>
   </header>
 </template>
@@ -49,9 +87,53 @@ withDefaults(
   gap: var(--space-3);
   flex: none;
 }
+
+/* 返回按钮（左段） */
+.page-head__back {
+  display: grid;
+  place-items: center;
+  width: 36px;
+  height: 36px;
+  flex: none;
+  border-radius: 50%;
+  background: var(--bg-card);
+  border: 1px solid var(--border-subtle);
+  color: var(--text-secondary);
+  cursor: pointer;
+  transition: background var(--motion-hover-fast) var(--ease-default);
+}
+.page-head__back:hover {
+  background: var(--bg-soft);
+}
+
+/* 详情/子页返回头：紧凑行内布局 */
+.page-head--detail {
+  align-items: center;
+  gap: var(--space-3);
+}
+.page-head--detail .page-head__title {
+  display: flex;
+  align-items: center;
+  gap: var(--space-3);
+}
+.page-head--detail h1 {
+  font-size: var(--fs-h3);
+  font-weight: var(--fw-h1);
+}
+
 @media (max-width: 767px) {
   .page-head--stack {
     flex-direction: column;
   }
+  /* 吸顶（替代原 layout topbar；负边距让背景铺满屏宽） */
+  .page-head--sticky-mobile {
+    position: sticky;
+    top: 0;
+    z-index: 30;
+    margin-left: calc(-1 * var(--padding-mobile));
+    margin-right: calc(-1 * var(--padding-mobile));
+    padding: var(--space-2) var(--padding-mobile);
+    background: var(--bg-canvas);
+  }
 }
 </style>
diff --git a/client/src/layouts/MobileLayout.vue b/client/src/layouts/MobileLayout.vue
index 545e35b..b1b9c6c 100644
--- a/client/src/layouts/MobileLayout.vue
+++ b/client/src/layouts/MobileLayout.vue
@@ -1,22 +1,13 @@
 <script setup lang="ts">
-import { computed } from 'vue'
 import { useRoute } from 'vue-router'
 import AppIcon from '../components/base/AppIcon.vue'
 import { mobileNav } from '../router/nav'
 
 const route = useRoute()
-const title = computed(() => String(route.meta.title ?? '备考通'))
-// 首页以自己的问候语作为页头，不再重复显示顶部栏标题
-const isHome = computed(() => route.path === '/')
-// 刷题相关页面自带页头（AppPageHeader），隐藏顶栏标题避免重复
-const hideTopbar = computed(() => isHome.value || route.path.startsWith('/practice'))
 </script>
 
 <template>
   <div class="layout-mobile">
-    <header v-if="!hideTopbar" class="topbar">
-      <h1>{{ title }}</h1>
-    </header>
     <main class="content"><slot /></main>
     <nav class="tabbar">
       <RouterLink
@@ -37,22 +28,6 @@ const hideTopbar = computed(() => isHome.value || route.path.startsWith('/practi
 .layout-mobile {
   min-height: 100vh;
 }
-.topbar {
-  position: sticky;
-  top: 0;
-  z-index: 10;
-  display: flex;
-  align-items: center;
-  height: 56px;
-  padding: 0 var(--padding-mobile);
-  background: var(--bg-canvas);
-}
-.topbar h1 {
-  margin: 0;
-  font-size: 20px;
-  font-weight: var(--fw-h1);
-  color: var(--text-primary);
-}
 .content {
   padding: 0 var(--padding-mobile) var(--tabbar-height-mobile);
 }
diff --git a/client/src/views/mock/MockFormView.vue b/client/src/views/mock/MockFormView.vue
index 96e614d..ccc5264 100644
--- a/client/src/views/mock/MockFormView.vue
+++ b/client/src/views/mock/MockFormView.vue
@@ -130,7 +130,7 @@ watch(
 
 <template>
   <div class="mock-form">
-    <AppPageHeader :title="title" subtitle="仅支持行测五个模块分数，总分自动汇总">
+    <AppPageHeader :title="title" subtitle="仅支持行测五个模块分数，总分自动汇总" sticky-mobile>
       <AppButton variant="ghost" @click="back">
         <AppIcon name="chevron-left" :size="16" />返回模考分析
       </AppButton>
diff --git a/client/src/views/mock/MockView.vue b/client/src/views/mock/MockView.vue
index bba90db..06dd36b 100644
--- a/client/src/views/mock/MockView.vue
+++ b/client/src/views/mock/MockView.vue
@@ -98,7 +98,7 @@ async function confirmRemove() {
     />
 
     <template v-else>
-      <AppPageHeader title="模考分析" subtitle="行测成绩趋势 · 目标分差 · 模块对比" :stack-mobile="isMobile">
+      <AppPageHeader title="模考分析" subtitle="行测成绩趋势 · 目标分差 · 模块对比" :stack-mobile="isMobile" sticky-mobile>
         <AppButton variant="primary" @click="goEntry">
           <AppIcon name="plus" :size="16" />录入成绩
         </AppButton>
diff --git a/client/src/views/news/NewsDetailView.vue b/client/src/views/news/NewsDetailView.vue
index a69b265..6f88e77 100644
--- a/client/src/views/news/NewsDetailView.vue
+++ b/client/src/views/news/NewsDetailView.vue
@@ -8,8 +8,7 @@ import { formatDateShort } from '../../utils/format'
 import AppLoading from '../../components/feedback/AppLoading.vue'
 import AppError from '../../components/feedback/AppError.vue'
 import AppEmpty from '../../components/feedback/AppEmpty.vue'
-import AppIcon from '../../components/base/AppIcon.vue'
-import AppButton from '../../components/base/AppButton.vue'
+import AppPageHeader from '../../components/base/AppPageHeader.vue'
 
 const route = useRoute()
 const id = computed(() => String(route.params.id ?? ''))
@@ -32,12 +31,9 @@ const html = computed(() => renderMarkdown(detail.data.value?.content ?? ''))
     />
 
     <template v-else-if="detail.data.value">
-      <header class="head">
-        <AppButton class="head__back" variant="ghost" size="md" aria-label="返回" @click="$router.back()">
-          <AppIcon name="chevron-left" :size="20" />
-        </AppButton>
-        <span class="head__label">要闻详情</span>
-      </header>
+      <AppPageHeader back class="news-detail__head" sticky-mobile>
+        <template #title><span class="head__label">要闻详情</span></template>
+      </AppPageHeader>
 
       <article class="article">
         <section class="article__hero">
@@ -61,25 +57,9 @@ const html = computed(() => renderMarkdown(detail.data.value?.content ?? ''))
   display: flex;
   flex-direction: column;
 }
-.head {
-  display: flex;
-  align-items: center;
-  gap: var(--space-3);
+.news-detail__head {
   margin-bottom: var(--space-4);
 }
-.head__back {
-  display: grid !important;
-  place-items: center;
-  width: 36px !important;
-  height: 36px !important;
-  padding: 0 !important;
-  border: none !important;
-  border-radius: 50% !important;
-  background: var(--bg-card) !important;
-  color: var(--text-primary) !important;
-  gap: 0 !important;
-  cursor: pointer;
-}
 .head__label {
   font-size: var(--fs-subtitle);
   color: var(--text-secondary);
diff --git a/client/src/views/news/NewsView.vue b/client/src/views/news/NewsView.vue
index 4026f6c..b9dd1b2 100644
--- a/client/src/views/news/NewsView.vue
+++ b/client/src/views/news/NewsView.vue
@@ -96,7 +96,7 @@ async function doImport() {
 
     <template v-else>
       <!-- 页头 -->
-      <AppPageHeader :title="isMobile ? '要闻公告' : '要闻'" subtitle="最新招考资讯与政策动态">
+      <AppPageHeader :title="isMobile ? '要闻公告' : '要闻'" subtitle="最新招考资讯与政策动态" sticky-mobile>
         <AppButton variant="ghost" @click="openImport">订阅推送</AppButton>
         <AppButton variant="primary" @click="openImport">
           <AppIcon name="inbox" :size="16" />发布公告
diff --git a/client/src/views/plan/PlanReviewView.vue b/client/src/views/plan/PlanReviewView.vue
index 572a45c..85ce1d1 100644
--- a/client/src/views/plan/PlanReviewView.vue
+++ b/client/src/views/plan/PlanReviewView.vue
@@ -4,8 +4,7 @@ import { plansApi } from '../../api'
 import { useRequest } from '../../composables/useRequest'
 import { formatDateShort, formatMinutes, weekdayName } from '../../utils/format'
 import AppCard from '../../components/base/AppCard.vue'
-import AppIcon from '../../components/base/AppIcon.vue'
-import AppButton from '../../components/base/AppButton.vue'
+import AppPageHeader from '../../components/base/AppPageHeader.vue'
 import AppLoading from '../../components/feedback/AppLoading.vue'
 import AppError from '../../components/feedback/AppError.vue'
 import AppEmpty from '../../components/feedback/AppEmpty.vue'
@@ -45,13 +44,10 @@ const weakTone = ['danger', 'warning', 'primary']
 
     <template v-else-if="data">
       <!-- 页头 -->
-      <header class="review__head">
-        <AppButton class="review__back" variant="ghost" size="md" aria-label="返回" @click="$router.back()">
-          <AppIcon name="chevron-left" :size="20" />
-        </AppButton>
-        <h1>周报复盘</h1>
+      <AppPageHeader back sticky-mobile>
+        <template #title><h1 class="review__title">周报复盘</h1></template>
         <span class="review__export">本周小结</span>
-      </header>
+      </AppPageHeader>
 
       <!-- 周区间 + 汇总 -->
       <section class="review-hero">
@@ -120,32 +116,13 @@ const weakTone = ['danger', 'warning', 'primary']
   flex-direction: column;
   gap: var(--space-5);
 }
-.review__head {
-  display: flex;
-  align-items: center;
-  gap: var(--space-3);
-}
-.review__back {
-  display: grid !important;
-  place-items: center;
-  width: 36px !important;
-  height: 36px !important;
-  padding: 0 !important;
-  border: none !important;
-  border-radius: 50% !important;
-  background: var(--bg-card) !important;
-  color: var(--text-primary) !important;
-  gap: 0 !important;
-  cursor: pointer;
-}
-.review__head h1 {
+.review__title {
   margin: 0;
   font-size: var(--fs-h1);
   font-weight: var(--fw-h1);
   color: var(--text-primary);
 }
 .review__export {
-  margin-left: auto;
   font-size: var(--fs-label);
   color: var(--text-muted);
 }
diff --git a/client/src/views/plan/PlanView.vue b/client/src/views/plan/PlanView.vue
index b1ce06d..74d1a9b 100644
--- a/client/src/views/plan/PlanView.vue
+++ b/client/src/views/plan/PlanView.vue
@@ -234,7 +234,7 @@ const profileDays = computed(() => (examProfile.data.value ? daysSince(examProfi
 
     <!-- ============ 桌面端备考计划 ============ -->
     <div v-else-if="todayData" class="plan-desktop">
-      <AppPageHeader title="备考计划" :subtitle="`安排阶段任务，稳步推进备考进度 · 备考第 ${profileDays} 天`">
+      <AppPageHeader title="备考计划" :subtitle="`安排阶段任务，稳步推进备考进度 · 备考第 ${profileDays} 天`" sticky-mobile>
         <RouterLink class="btn-link" to="/plan/review">
           <AppIcon name="chart" :size="16" />周报复盘
         </RouterLink>
diff --git a/client/src/views/practice/AiExplainView.vue b/client/src/views/practice/AiExplainView.vue
index 3a5cab1..7befba8 100644
--- a/client/src/views/practice/AiExplainView.vue
+++ b/client/src/views/practice/AiExplainView.vue
@@ -7,6 +7,7 @@ import AppCard from '../../components/base/AppCard.vue'
 import AppButton from '../../components/base/AppButton.vue'
 import AppIcon from '../../components/base/AppIcon.vue'
 import AppBadge from '../../components/base/AppBadge.vue'
+import AppPageHeader from '../../components/base/AppPageHeader.vue'
 import AppLoading from '../../components/feedback/AppLoading.vue'
 import AppError from '../../components/feedback/AppError.vue'
 
@@ -68,15 +69,11 @@ const mistakeText = computed(() => {
 
     <template v-else-if="explain">
       <!-- 顶栏 -->
-      <header class="ai-explain__top">
-        <button type="button" class="ai-explain__back" @click="back">
-          <AppIcon name="chevron-left" :size="20" />
-        </button>
-        <h1 class="ai-explain__title">{{ title }}</h1>
+      <AppPageHeader :title="title" size="detail" back>
         <AppBadge :variant="isAi ? 'primary' : 'soft'">
           {{ isAi ? 'AI 生成' : '题库解析回退' }}
         </AppBadge>
-      </header>
+      </AppPageHeader>
 
       <!-- 结论 -->
       <AppCard title="讲解结论" icon="sparkles">
@@ -131,30 +128,6 @@ const mistakeText = computed(() => {
   flex-direction: column;
   gap: var(--space-5);
 }
-.ai-explain__top {
-  display: flex;
-  align-items: center;
-  gap: var(--space-3);
-}
-.ai-explain__back {
-  display: grid;
-  place-items: center;
-  width: 36px;
-  height: 36px;
-  flex: none;
-  border-radius: 50%;
-  background: var(--bg-card);
-  border: 1px solid var(--border-subtle);
-  color: var(--text-secondary);
-  cursor: pointer;
-}
-.ai-explain__title {
-  flex: 1;
-  margin: 0;
-  font-size: var(--fs-h2);
-  font-weight: var(--fw-h2);
-  color: var(--text-primary);
-}
 .ai-explain__summary {
   margin: 0;
   font-size: var(--fs-body);
diff --git a/client/src/views/practice/WrongDetailView.vue b/client/src/views/practice/WrongDetailView.vue
index ae877f5..381437f 100644
--- a/client/src/views/practice/WrongDetailView.vue
+++ b/client/src/views/practice/WrongDetailView.vue
@@ -5,6 +5,7 @@ import { reviewApi, type ReviewDetail } from '../../api'
 import AppButton from '../../components/base/AppButton.vue'
 import AppBadge from '../../components/base/AppBadge.vue'
 import AppIcon from '../../components/base/AppIcon.vue'
+import AppPageHeader from '../../components/base/AppPageHeader.vue'
 import AppLoading from '../../components/feedback/AppLoading.vue'
 import AppError from '../../components/feedback/AppError.vue'
 import { formatDateShort, formatDateWeekday } from '../../utils/format'
@@ -75,10 +76,6 @@ async function markMastered() {
   }
 }
 
-function back() {
-  router.back()
-}
-
 const statusLabel = computed(() =>
   assessResult.value
     ? assessResult.value.status === 'mastered'
@@ -119,15 +116,9 @@ function goAiExplain() {
 
     <template v-else-if="detail">
       <!-- 顶栏：返回 + 标题 + 状态 -->
-      <header class="wd__top">
-        <button type="button" class="wd__back" @click="back">
-          <AppIcon name="chevron-left" :size="20" />
-        </button>
-        <h1 class="wd__title">错题详情</h1>
-        <span class="wd__status-badge">
-          <AppBadge :variant="statusMeta.variant">{{ statusLabel }}</AppBadge>
-        </span>
-      </header>
+      <AppPageHeader title="错题详情" size="detail" back>
+        <AppBadge :variant="statusMeta.variant">{{ statusLabel }}</AppBadge>
+      </AppPageHeader>
 
       <!-- 题目卡片 -->
       <section class="wd__question">
@@ -255,34 +246,6 @@ function goAiExplain() {
 }
 
 /* 顶栏 */
-.wd__top {
-  display: flex;
-  align-items: center;
-  gap: var(--space-3);
-}
-.wd__back {
-  display: grid;
-  place-items: center;
-  width: 36px;
-  height: 36px;
-  flex: none;
-  border-radius: 50%;
-  background: var(--bg-card);
-  border: 1px solid var(--border-subtle);
-  color: var(--text-secondary);
-  cursor: pointer;
-}
-.wd__title {
-  margin: 0;
-  font-size: var(--fs-h3);
-  font-weight: var(--fw-h1);
-  color: var(--text-primary);
-  flex: 1;
-}
-.wd__status-badge {
-  flex: none;
-}
-
 /* 题目 */
 .wd__question {
   background: var(--bg-card);
diff --git a/client/src/views/profile/ProfileView.vue b/client/src/views/profile/ProfileView.vue
index cd90e1a..bb48572 100644
--- a/client/src/views/profile/ProfileView.vue
+++ b/client/src/views/profile/ProfileView.vue
@@ -168,7 +168,7 @@ function editProfile() {
 
     <!-- ============ 桌面端我的 ============ -->
     <div v-else-if="d" class="profile-desktop">
-      <AppPageHeader title="我的" subtitle="管理个人资料与备考偏好">
+      <AppPageHeader title="我的" subtitle="管理个人资料与备考偏好" sticky-mobile>
         <AppButton variant="secondary" @click="editProfile">
           <AppIcon name="user" :size="16" />编辑资料
         </AppButton>
diff --git a/client/src/views/questions/QuestionsView.vue b/client/src/views/questions/QuestionsView.vue
index 4b077a4..95866a1 100644
--- a/client/src/views/questions/QuestionsView.vue
+++ b/client/src/views/questions/QuestionsView.vue
@@ -326,7 +326,7 @@ function markAnswer(key: OptionKey) {
   <div class="questions">
     <!-- ======================= 手动录入模式 ======================= -->
     <template v-if="mode === 'entry'">
-      <AppPageHeader title="题库管理" subtitle="手动录入题目 · 支持逐题与批量 JSON 导入">
+      <AppPageHeader title="题库管理" subtitle="手动录入题目 · 支持逐题与批量 JSON 导入" sticky-mobile>
         <AppButton variant="ghost" @click="mode = 'list'">
           <AppIcon name="chevron-left" :size="16" />返回列表
         </AppButton>
@@ -454,7 +454,7 @@ function markAnswer(key: OptionKey) {
       />
 
       <template v-else>
-        <AppPageHeader title="题库管理" subtitle="手动录入题目 · 支持逐题与批量 JSON 导入">
+        <AppPageHeader title="题库管理" subtitle="手动录入题目 · 支持逐题与批量 JSON 导入" sticky-mobile>
           <AppButton variant="secondary" @click="openImport">
             <AppIcon name="inbox" :size="16" />导入真题
           </AppButton>
diff --git a/client/src/views/settings/SettingsView.vue b/client/src/views/settings/SettingsView.vue
index 7c6b067..5078320 100644
--- a/client/src/views/settings/SettingsView.vue
+++ b/client/src/views/settings/SettingsView.vue
@@ -96,7 +96,7 @@ async function save() {
 
     <template v-else-if="settings.data.value">
       <!-- 页头 -->
-      <AppPageHeader title="设置" subtitle="调整偏好、通知与数据策略" stack-mobile>
+      <AppPageHeader title="设置" subtitle="调整偏好、通知与数据策略" stack-mobile sticky-mobile>
         <AppButton variant="primary" :disabled="saving" @click="save">
           <AppIcon name="check" :size="16" />{{ saving ? '保存中…' : '保存设置' }}
         </AppButton>