前后端数据流对齐：

后端改动：

GET /api/v1/accounts 现在返回分页格式 {items, total, page, size, total_pages, status_counts}，默认每页 12 个
批量操作用 size=500 一次拉全部
前端改动：

base.html — 加了移动端汉堡菜单、全局响应式样式、pagination disabled 状态
dashboard.html — 账号卡片分页，统计数据从 API 的 status_counts 取，移动端单列布局
account_detail.html — 签到记录改成上下两行布局（topic+状态 / 消息+时间），分页用统一的上一页/下一页样式，移动端适配
分页逻辑统一：前后端都用 page/total_pages 字段，pagination 组件显示当前页 ±2 页码。

frontend/app.py

@@ -213,18 +213,32 @@ def logout():
 @app.route('/dashboard')
 @login_required
 def dashboard():
+    page = request.args.get('page', 1, type=int)
     try:
         response = api_request(
             'GET',
             f'{API_BASE_URL}/api/v1/accounts',
+            params={'page': page, 'size': 12},
         )
         data = response.json()
-        accounts = data.get('data', []) if data.get('success') else []
+        if data.get('success'):
+            payload = data.get('data', {})
+            # 兼容旧版 API（返回列表）和新版（返回分页对象）
+            if isinstance(payload, list):
+                accounts = payload
+                pagination = {'items': payload, 'total': len(payload), 'page': 1, 'size': len(payload), 'total_pages': 1, 'status_counts': {}}
+            else:
+                accounts = payload.get('items', [])
+                pagination = payload
+        else:
+            accounts = []
+            pagination = {'items': [], 'total': 0, 'page': 1, 'size': 12, 'total_pages': 0, 'status_counts': {}}
     except requests.RequestException:
         accounts = []
+        pagination = {'items': [], 'total': 0, 'page': 1, 'size': 12, 'total_pages': 0, 'status_counts': {}}
         flash('加载账号列表失败', 'warning')
 
-    return render_template('dashboard.html', accounts=accounts, user=session.get('user'))
+    return render_template('dashboard.html', accounts=accounts, pagination=pagination, user=session.get('user'))
 
 @app.route('/accounts/new')
 @login_required
@@ -841,9 +855,10 @@ def delete_task(task_id):
 def batch_verify():
     """批量验证所有账号的 Cookie 有效性"""
     try:
-        response = api_request('GET', f'{API_BASE_URL}/api/v1/accounts')
+        response = api_request('GET', f'{API_BASE_URL}/api/v1/accounts', params={'page': 1, 'size': 500})
         data = response.json()
-        accounts = data.get('data', []) if data.get('success') else []
+        payload = data.get('data', {}) if data.get('success') else {}
+        accounts = payload.get('items', []) if isinstance(payload, dict) else payload
 
         valid = invalid = errors = 0
         for account in accounts:
@@ -871,9 +886,10 @@ def batch_verify():
 def batch_signin():
     """批量签到所有正常状态的账号"""
     try:
-        response = api_request('GET', f'{API_BASE_URL}/api/v1/accounts')
+        response = api_request('GET', f'{API_BASE_URL}/api/v1/accounts', params={'page': 1, 'size': 500})
         data = response.json()
-        accounts = data.get('data', []) if data.get('success') else []
+        payload = data.get('data', {}) if data.get('success') else {}
+        accounts = payload.get('items', []) if isinstance(payload, dict) else payload
 
         total_signed = total_already = total_failed = 0
         processed = 0