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code/allapp/allapp-rn/test.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" />
+  <title>Bottom Nav Demo</title>
+  <link rel="stylesheet" href="style.css" />
+  <style>
+    * {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+  font-family: system-ui, -apple-system, BlinkMacSystemFont;
+}
+
+body {
+  background: #f6f7f9;
+  height: 100vh;
+}
+
+.content {
+  padding: 16px;
+  padding-bottom: 80px;
+  color: #555;
+}
+
+/* 底部栏 */
+.bottom-bar {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  height: 56px;
+  background: #fff;
+  border-top: 1px solid #e5e5e5;
+
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+
+  padding: 0 12px;
+}
+
+/* 左右按钮 */
+.nav-btn {
+  width: 40px;
+  height: 40px;
+  border: none;
+  background: none;
+  font-size: 18px;
+  color: #333;
+}
+
+/* 中间区域 */
+.nav-center {
+  flex: 1;
+  text-align: center;
+  font-size: 14px;
+  font-weight: 500;
+  color: #222;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  gap: 4px;
+}
+
+.nav-center .arrow {
+  font-size: 12px;
+  color: #999;
+}
+
+/* 扩展菜单 */
+.extension {
+  position: fixed;
+  bottom: 56px;
+  left: 12px;
+  right: 12px;
+
+  background: #fff;
+  border-radius: 12px;
+  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
+
+  transform: translateY(20px);
+  opacity: 0;
+  pointer-events: none;
+
+  transition: all 0.2s ease;
+}
+
+.extension.show {
+  transform: translateY(0);
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.extension-item {
+  padding: 14px 16px;
+  font-size: 14px;
+  color: #333;
+  border-bottom: 1px solid #eee;
+}
+
+.extension-item:last-child {
+  border-bottom: none;
+}
+
+.extension-item.danger {
+  color: #d93026;
+}
+
+  </style>
+</head>
+<body>
+
+  <main class="content">
+    <p>当前工具内容区域</p>
+  </main>
+
+  <!-- 扩展菜单 -->
+  <div class="extension" id="extension">
+    <div class="extension-item">视图切换</div>
+    <div class="extension-item">工具设置</div>
+    <div class="extension-item">导出数据</div>
+    <div class="extension-item danger">清空记录</div>
+  </div>
+
+  <!-- 底部导航 -->
+  <nav class="bottom-bar">
+    <button class="nav-btn">←</button>
+
+    <div class="nav-center">
+      <span class="title">记账 · 本月</span>
+      <span class="arrow">▾</span>
+    </div>
+
+    <button class="nav-btn" onclick="toggleExt()">⋯</button>
+  </nav>
+
+  <script>
+    function toggleExt() {
+      document.getElementById('extension')
+        .classList.toggle('show')
+    }
+  </script>
+
+</body>
+</html>