diff --git a/h5/index.html b/h5/index.html
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+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+  <title>郑州智慧工地</title>
+  <link rel="stylesheet" href="css/style.css">
+</head>
+<body>
+  <div class="page">
+    <!-- 顶栏 -->
+    <header class="header">
+      <div class="header-title">
+        <span>郑州智慧工地</span>
+      </div>
+      <a href="profile.html" class="header-right">
+        <span>👤</span>
+      </a>
+    </header>
+
+    <div class="page-content">
+      <!-- 设备概况卡片 -->
+      <div class="card">
+        <div class="card-title">设备概况</div>
+        <div class="stat-grid">
+          <div class="stat-card">
+            <div class="stat-label">塔吊统计</div>
+            <div class="stat-value" id="tcCount">--</div>
+            <div class="stat-sub">在线 <span id="tcOnline">--</span> 台</div>
+          </div>
+          <div class="stat-card">
+            <div class="stat-label">升降机统计</div>
+            <div class="stat-value" id="elCount">--</div>
+            <div class="stat-sub">在线 <span id="elOnline">--</span> 台</div>
+          </div>
+        </div>
+      </div>
+
+      <!-- 今日预警卡片 -->
+      <div class="card">
+        <div class="card-title">今日预警</div>
+        <div class="stat-grid">
+          <div class="stat-card" style="border-left: 3px solid #f97316;">
+            <div class="stat-label">危险</div>
+            <div class="stat-value" id="dangerCount" style="color: #f97316;">--</div>
+          </div>
+          <div class="stat-card" style="border-left: 3px solid #eab308;">
+            <div class="stat-label">警告</div>
+            <div class="stat-value" id="warningCount" style="color: #eab308;">--</div>
+          </div>
+        </div>
+      </div>
+
+      <!-- 最新预警卡片 -->
+      <div class="card">
+        <div class="card-header">
+          <div class="card-title" style="margin-bottom: 0; padding-bottom: 0; border-bottom: none;">最新预警</div>
+          <a href="alerts.html" class="card-link">查看全部 ›</a>
+        </div>
+        <div id="latestAlerts"></div>
+      </div>
+    </div>
+
+    <!-- 底部Tab栏 -->
+    <nav class="tab-bar">
+      <a href="index.html" class="tab-item active">
+        <span>🏠</span>
+        <span>首页</span>
+      </a>
+      <a href="devices.html" class="tab-item">
+        <span>🏗️</span>
+        <span>设备</span>
+      </a>
+      <a href="report.html" class="tab-item">
+        <span>📷</span>
+        <span>随手拍</span>
+      </a>
+      <a href="logs.html" class="tab-item">
+        <span>📋</span>
+        <span>日志</span>
+      </a>
+    </nav>
+  </div>
+
+  <script src="js/mock.js"></script>
+  <script src="js/app.js"></script>
+  <script src="js/api.js"></script>
+  <script>
+    if (!requireAuth()) {}
+
+    async function loadDashboard() {
+      const [devRes, alertRes] = await Promise.all([apiGetDevices(), apiGetAlerts()]);
+
+      // 统计塔吊/升降机数量和在线数
+      const devices = devRes.data.items;
+      const tcDevices = devices.filter(d => d.type === 'tower_crane');
+      const elDevices = devices.filter(d => d.type === 'elevator');
+      document.getElementById('tcCount').textContent = tcDevices.length;
+      document.getElementById('tcOnline').textContent = tcDevices.filter(d => d.status === 'online').length;
+      document.getElementById('elCount').textContent = elDevices.length;
+      document.getElementById('elOnline').textContent = elDevices.filter(d => d.status === 'online').length;
+
+      // 统计危险/警告未读数
+      const alerts = alertRes.data.items;
+      const dangerCount = alerts.filter(a => a.level === 'danger' && a.status === 'unread').length;
+      const warningCount = alerts.filter(a => a.level === 'warning' && a.status === 'unread').length;
+      document.getElementById('dangerCount').textContent = dangerCount;
+      document.getElementById('warningCount').textContent = warningCount;
+
+      // 渲染最新3条预警到latestAlerts
+      const latestAlertsEl = document.getElementById('latestAlerts');
+      const latest3 = alerts.slice(0, 3);
+      latestAlertsEl.innerHTML = latest3.map(alert => {
+        const icon = getAlertIcon(alert.level);
+        const time = formatTime(alert.createdAt);
+        return `
+          <a href="alert.html?id=${alert.id}" class="alert-item">
+            <div class="alert-icon ${alert.level}">${icon}</div>
+            <div class="alert-content">
+              <div class="alert-title">${alert.message}</div>
+              <div class="alert-desc">${alert.deviceName} · ${time}</div>
+            </div>
+          </a>
+        `;
+      }).join('');
+    }
+
+    loadDashboard();
+  </script>
+</body>
+</html>
