diff --git a/resources/views/admin/layouts/app.blade.php b/resources/views/admin/layouts/app.blade.php
index 5a95af1..fd2e8ed 100644
--- a/resources/views/admin/layouts/app.blade.php
+++ b/resources/views/admin/layouts/app.blade.php
@@ -18,7 +18,7 @@
                 <a class="topnav-link" href="/admin">仪表盘</a>
 
                 <details class="topnav-item nav-group" data-role="topnav-group">
-                    <summary class="topnav-summary nav-group-title">收费中心</summary>
+                    <summary class="topnav-summary">收费中心</summary>
                     <div class="topnav-dropdown">
                         <a href="/admin/platform-orders" class="topnav-sub nav-item nav-item--sub">平台订单</a>
                         <a href="/admin/site-subscriptions" class="topnav-sub nav-item nav-item--sub">订阅</a>
@@ -27,7 +27,7 @@
                 </details>
 
                 <details class="topnav-item nav-group" data-role="topnav-group">
-                    <summary class="topnav-summary nav-group-title">站点治理</summary>
+                    <summary class="topnav-summary">站点治理</summary>
                     <div class="topnav-dropdown">
                         <a href="/admin/merchants" class="topnav-sub nav-item nav-item--sub">站点管理</a>
                         <a href="/admin/orders" class="topnav-sub nav-item nav-item--sub">订单监控</a>
@@ -37,21 +37,21 @@
                 </details>
 
                 <details class="topnav-item nav-group" data-role="topnav-group">
-                    <summary class="topnav-summary nav-group-title">增长转化</summary>
+                    <summary class="topnav-summary">增长转化</summary>
                     <div class="topnav-dropdown">
                         <a href="/admin/platform-leads" class="topnav-sub nav-item nav-item--sub">开通线索</a>
                     </div>
                 </details>
 
                 <details class="topnav-item nav-group" data-role="topnav-group">
-                    <summary class="topnav-summary nav-group-title">客服中心</summary>
+                    <summary class="topnav-summary">客服中心</summary>
                     <div class="topnav-dropdown">
                         <a href="/admin/support-tickets" class="topnav-sub nav-item nav-item--sub">工单</a>
                     </div>
                 </details>
 
                 <details class="topnav-item nav-group" data-role="topnav-group">
-                    <summary class="topnav-summary nav-group-title">系统</summary>
+                    <summary class="topnav-summary">系统</summary>
                     <div class="topnav-dropdown">
                         <a href="/admin/settings/system" class="topnav-sub nav-item nav-item--sub">系统配置</a>
                     </div>
@@ -68,11 +68,7 @@
     <main class="content">
         <div class="toast-container" data-role="toast-container" aria-live="polite" aria-relevant="additions" aria-atomic="true"></div>
 
-        <div class="top">
-            <div>
-                <h1 class="page-title">@yield('page_title', '总台管理')</h1>
-            </div>
-        </div>
+        {{-- 页面标题已统一收敛到各页面的 PageHeader 组件，避免重复出现“大标题”。 --}}
         @if(session('success'))
             <div class="flash" data-flash="success">{{ session('success') }}</div>
         @endif
diff --git a/tests/Feature/AdminBusinessPagesTest.php b/tests/Feature/AdminBusinessPagesTest.php
index 6ce12c1..fa212c6 100644
--- a/tests/Feature/AdminBusinessPagesTest.php
+++ b/tests/Feature/AdminBusinessPagesTest.php
@@ -110,7 +110,7 @@ class AdminBusinessPagesTest extends TestCase
             ->assertSee('商品巡检')
             ->assertSee('批量导入商品')
             ->assertSee('下载导入模板')
-            ->assertSee('导出 CSV')
+            ->assertSee('导出当前筛选结果 CSV')
             ->assertSee('进入完整导入历史页')
             ->assertSee('导入历史摘要')
             ->assertSee('当前筛选摘要')