body {
      font-family: Arial, sans-serif;
      background: #f4f6f8;
      height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .box {
      background: white;
      padding: 30px;
      width: 320px;
      text-align: center;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    h2 {
      margin-bottom: 20px;
    }

    a {
      display: block;
      padding: 12px;
      margin: 12px 0;
      background: #1976d2;
      color: white;
      text-decoration: none;
      border-radius: 4px;
      font-weight: bold;
    }

    a:hover {
      background: #125aa3;
    }

    .note {
      font-size: 13px;
      color: #555;
      margin-top: 10px;
    }