diff --git a/frontend/src/components/shared/PageHeader/index.tsx b/frontend/src/components/shared/PageHeader/index.tsx
index 5cbd4e5..70cca0a 100644
--- a/frontend/src/components/shared/PageHeader/index.tsx
+++ b/frontend/src/components/shared/PageHeader/index.tsx
@@ -1,4 +1,4 @@
-import { Typography, Space } from 'antd';
+import { Typography } from 'antd';
 import React from 'react';
 
 const { Title, Text } = Typography;
@@ -12,18 +12,28 @@ interface PageHeaderProps {
 
 const PageHeader: React.FC<PageHeaderProps> = ({ title, subtitle, extra, className = '' }) => {
   return (
-    <div className={`page-header flex justify-between items-end mb-6 ${className}`}>
-      <div>
-        <Title level={4} className="mb-1" style={{ margin: 0 }}>
+    <div
+      className={`page-header ${className}`}
+      style={{
+        display: 'flex',
+        justifyContent: 'space-between',
+        alignItems: 'flex-start',
+        marginBottom: 24,
+        flexWrap: 'wrap',
+        gap: 16
+      }}
+    >
+      <div style={{ flex: 1, minWidth: 200 }}>
+        <Title level={4} style={{ margin: '0 0 8px 0', fontWeight: 600 }}>
           {title}
         </Title>
         {subtitle && (
-          <Text type="secondary" style={{ display: 'block' }}>
+          <Text type="secondary" style={{ display: 'block', fontSize: 14 }}>
             {subtitle}
           </Text>
         )}
       </div>
-      {extra && <div className="page-header-extra">{extra}</div>}
+      {extra && <div className="page-header-extra" style={{ display: 'flex', alignItems: 'center' }}>{extra}</div>}
     </div>
   );
 };
diff --git a/frontend/src/pages/business/ClientManagement.tsx b/frontend/src/pages/business/ClientManagement.tsx
index f52cbaf..dd8e0d6 100644
--- a/frontend/src/pages/business/ClientManagement.tsx
+++ b/frontend/src/pages/business/ClientManagement.tsx
@@ -1,6 +1,6 @@
 import { App, Button, Card, Col, Drawer, Empty, Form, Input, InputNumber, Popconfirm, Row, Select, Space, Switch, Table, Tabs, Tag, Typography, Upload } from "antd";
 import type { ColumnsType } from "antd/es/table";
-import { CloudUploadOutlined, DeleteOutlined, DownloadOutlined, EditOutlined, LaptopOutlined, MobileOutlined, PlusOutlined, ReloadOutlined, SearchOutlined, UploadOutlined } from "@ant-design/icons";
+import { CheckCircleOutlined, CloudUploadOutlined, DeleteOutlined, DownloadOutlined, EditOutlined, LaptopOutlined, MobileOutlined, PlusOutlined, ReloadOutlined, RocketOutlined, SearchOutlined, UploadOutlined, WindowsOutlined } from "@ant-design/icons";
 import { useCallback, useEffect, useMemo, useState } from "react";
 import PageHeader from "@/components/shared/PageHeader";
 import AppPagination from "@/components/shared/AppPagination";
@@ -380,23 +380,71 @@ export default function ClientManagement() {
   ];
 
   return (
-    <div style={{ height: "100%", display: "flex", flexDirection: "column", overflow: "hidden" }}>
+    <div className="app-page">
       <PageHeader
         title="客户端管理"
         subtitle="发布平台由数据字典 client_platform 驱动，并按父子分组展示。"
         extra={
-          <Space>
-            <Button icon={<ReloadOutlined />} onClick={() => void loadData()} loading={loading || groupLoading || platformLoading}>刷新</Button>
-            <Button type="primary" icon={<PlusOutlined />} onClick={openCreate}>新增版本</Button>
+          <Space size={12}>
+            <Button icon={<ReloadOutlined />} onClick={() => void loadData()} loading={loading || groupLoading || platformLoading} style={{ borderRadius: 8, height: 36, fontWeight: 500 }}>刷新</Button>
+            <Button type="primary" icon={<PlusOutlined />} onClick={openCreate} style={{ borderRadius: 8, height: 36, fontWeight: 500 }}>发布新版</Button>
           </Space>
         }
       />
 
-      <Row gutter={16} className="mb-4">
-        <Col span={6}><Card size="small"><Space><CloudUploadOutlined style={{ color: "#1677ff" }} /><div><div>发布总数</div><Text strong>{stats.total}</Text></div></Space></Card></Col>
-        <Col span={6}><Card size="small"><Space><LaptopOutlined style={{ color: "#52c41a" }} /><div><div>已启用</div><Text strong>{stats.enabled}</Text></div></Space></Card></Col>
-        <Col span={6}><Card size="small"><Space><MobileOutlined style={{ color: "#722ed1" }} /><div><div>最新版本</div><Text strong>{stats.latest}</Text></div></Space></Card></Col>
-        <Col span={6}><Card size="small"><Space><LaptopOutlined style={{ color: "#fa8c16" }} /><div><div>平台分组</div><Text strong>{stats.groups}</Text></div></Space></Card></Col>
+      <Row gutter={24} style={{ marginBottom: 24 }}>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>发布总数</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.total}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(22, 119, 255, 0.1), rgba(54, 207, 201, 0.1))', border: '1px solid rgba(22, 119, 255, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <CloudUploadOutlined style={{ color: "#1677ff", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>已启用</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.enabled}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(82, 196, 26, 0.1), rgba(183, 235, 143, 0.1))', border: '1px solid rgba(82, 196, 26, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <LaptopOutlined style={{ color: "#52c41a", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>最新版本</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.latest}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(114, 46, 209, 0.1), rgba(179, 127, 235, 0.1))', border: '1px solid rgba(114, 46, 209, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <MobileOutlined style={{ color: "#722ed1", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>平台分组</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.groups}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(250, 140, 22, 0.1), rgba(255, 213, 145, 0.1))', border: '1px solid rgba(250, 140, 22, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <LaptopOutlined style={{ color: "#fa8c16", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
       </Row>
 
       <Card className="app-page__filter-card mb-4" styles={{ body: { padding: 16 } }}>
diff --git a/frontend/src/pages/business/ExternalAppManagement.tsx b/frontend/src/pages/business/ExternalAppManagement.tsx
index d341aa1..8a91c26 100644
--- a/frontend/src/pages/business/ExternalAppManagement.tsx
+++ b/frontend/src/pages/business/ExternalAppManagement.tsx
@@ -290,23 +290,71 @@ export default function ExternalAppManagement() {
   ];
 
   return (
-    <div style={{ height: "100%", display: "flex", flexDirection: "column", overflow: "hidden" }}>
+    <div className="app-page">
       <PageHeader
         title="外部应用管理"
         subtitle="统一维护首页九宫格与抽屉入口中的原生应用、Web 服务和应用图标资源。"
         extra={
-          <Space>
-            <Button icon={<ReloadOutlined />} onClick={() => void loadData()} loading={loading}>刷新</Button>
-            <Button type="primary" icon={<PlusOutlined />} onClick={openCreate}>新增应用</Button>
+          <Space size={12}>
+            <Button icon={<ReloadOutlined />} onClick={() => void loadData()} loading={loading} style={{ borderRadius: 8, height: 36, fontWeight: 500 }}>刷新</Button>
+            <Button type="primary" icon={<PlusOutlined />} onClick={openCreate} style={{ borderRadius: 8, height: 36, fontWeight: 500 }}>新增应用</Button>
           </Space>
         }
       />
 
-      <Row gutter={16} className="mb-4">
-        <Col span={6}><Card size="small"><Space><AppstoreOutlined style={{ color: "#1677ff" }} /><div><div>应用总数</div><Text strong>{stats.total}</Text></div></Space></Card></Col>
-        <Col span={6}><Card size="small"><Space><RobotOutlined style={{ color: "#52c41a" }} /><div><div>原生应用</div><Text strong>{stats.native}</Text></div></Space></Card></Col>
-        <Col span={6}><Card size="small"><Space><GlobalOutlined style={{ color: "#722ed1" }} /><div><div>Web 应用</div><Text strong>{stats.web}</Text></div></Space></Card></Col>
-        <Col span={6}><Card size="small"><Space><PictureOutlined style={{ color: "#fa8c16" }} /><div><div>已启用</div><Text strong>{stats.enabled}</Text></div></Space></Card></Col>
+      <Row gutter={24} style={{ marginBottom: 24 }}>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>应用总数</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.total}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(22, 119, 255, 0.1), rgba(54, 207, 201, 0.1))', border: '1px solid rgba(22, 119, 255, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <AppstoreOutlined style={{ color: "#1677ff", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>原生应用</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.native}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(82, 196, 26, 0.1), rgba(183, 235, 143, 0.1))', border: '1px solid rgba(82, 196, 26, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <RobotOutlined style={{ color: "#52c41a", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>Web 应用</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.web}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(114, 46, 209, 0.1), rgba(179, 127, 235, 0.1))', border: '1px solid rgba(114, 46, 209, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <GlobalOutlined style={{ color: "#722ed1", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
+        <Col span={6}>
+          <Card bordered={false} style={{ borderRadius: 16, border: '1px solid var(--app-border-color)', background: 'var(--app-bg-surface-strong)', backdropFilter: 'blur(12px)', boxShadow: '0 4px 20px rgba(0,0,0,0.02)' }} styles={{ body: { padding: '20px 24px' } }}>
+            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center' }}>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 4 }}>
+                <span style={{ color: 'var(--app-text-secondary)', fontSize: 13, fontWeight: 500 }}>已启用</span>
+                <span style={{ color: 'var(--app-text-main)', fontSize: 32, fontWeight: 800, fontFamily: 'system-ui, -apple-system, sans-serif' }}>{stats.enabled}</span>
+              </div>
+              <div style={{ width: 52, height: 52, borderRadius: 16, background: 'linear-gradient(135deg, rgba(250, 140, 22, 0.1), rgba(255, 213, 145, 0.1))', border: '1px solid rgba(250, 140, 22, 0.2)', display: 'flex', alignItems: 'center', justifyContent: 'center' }}>
+                <PictureOutlined style={{ color: "#fa8c16", fontSize: 24 }} />
+              </div>
+            </div>
+          </Card>
+        </Col>
       </Row>
 
       <Card className="app-page__filter-card mb-4" styles={{ body: { padding: 16 } }}>