<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>网站升级改版中</title>
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont,
        "Segoe UI", "Microsoft YaHei", sans-serif;
      background: #f5f7fb;
      color: #1f2937;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 24px;
    }

    .container {
      width: 100%;
      max-width: 520px;
      text-align: center;
      background: #ffffff;
      border-radius: 20px;
      padding: 56px 32px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    }

    .icon {
      width: 88px;
      height: 88px;
      margin: 0 auto 28px;
      background: #e8f0ff;
      color: #2563eb;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 42px;
    }

    h1 {
      font-size: 28px;
      margin-bottom: 18px;
      font-weight: 700;
    }

    .description {
      color: #6b7280;
      font-size: 16px;
      line-height: 1.9;
      margin-bottom: 32px;
    }

    .notice {
      background: #f8fafc;
      border-radius: 10px;
      padding: 14px;
      color: #64748b;
      font-size: 14px;
      margin-bottom: 28px;
    }

    .btn {
      display: inline-block;
      padding: 13px 28px;
      background: #2563eb;
      color: #ffffff;
      text-decoration: none;
      border-radius: 8px;
      font-size: 15px;
      transition: background 0.2s;
    }

    .btn:hover {
      background: #1d4ed8;
    }

    .footer {
      margin-top: 32px;
      font-size: 13px;
      color: #9ca3af;
    }

    @media (max-width: 480px) {
      .container {
        padding: 44px 24px;
      }

      h1 {
        font-size: 24px;
      }
    }
  </style>
</head>
<body>

  <main class="container">
    <div class="icon">🔧</div>

    <h1>网站升级改版中</h1>

    <p class="description">
      为了给您带来更好的使用体验，<br>
      我们正在对网站进行升级改版。<br>
      感谢您的耐心等待与支持！
    </p>

    <div class="notice">
      网站即将以全新的面貌与您见面
    </div>

    <!-- <a href="/" class="btn">返回首页</a> -->

    <!-- <div class="footer">
      © 2026 版权所有
    </div> -->
  </main>

</body>
</html>