* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', Arial, sans-serif;
        }
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        header {
            text-align: center;
            padding: 30px 0;
            background-color: #fff;
            border-radius: 8px;
            margin-bottom: 30px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        h1 {
            font-size: 28px;
            color: #2c3e50;
            margin-bottom: 15px;
        }
        .subtitle {
            font-size: 16px;
            color: #7f8c8d;
        }
        .platform-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 25px;
        }
        .platform-card {
            background-color: #fff;
            border-radius: 8px;
            padding: 25px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        .platform-card:hover {
            transform: translateY(-5px);
        }
        .platform-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        .platform-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            margin-right: 15px;
            object-fit: cover;
        }
        .platform-name {
            font-size: 20px;
            font-weight: bold;
            color: #2c3e50;
        }
        .platform-rank {
            display: inline-block;
            width: 25px;
            height: 25px;
            background-color: #3498db;
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 25px;
            font-size: 14px;
            margin-right: 10px;
        }
        .platform-desc {
            color: #555;
            margin-bottom: 20px;
            font-size: 15px;
        }
        .download-btn {
            display: inline-block;
            padding: 10px 20px;
            background-color: #3498db;
            color: white;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        .download-btn:hover {
            background-color: #2980b9;
        }
        footer {
            text-align: center;
            margin-top: 50px;
            padding: 20px;
            color: #7f8c8d;
            font-size: 14px;
        }
        @media (max-width: 768px) {
            .platform-list {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 24px;
            }
        }
        
/* 基础圆角矩形按钮样式 */
.rounded-download-btn {
  padding: 12px 30px;
  border-radius: 25px; /* 这个值控制圆角大小 */
  background: linear-gradient(to right, #1E90FF, #87CEFA);
  color: white;
  border: none;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 10px;
}

/* 图标样式 */
.rounded-download-btn i {
  margin-right: 8px;
  font-size: 14px;
}

/* 悬停效果 */
.rounded-download-btn:hover {
  background: linear-gradient(to right, #4169E1, #6495ED);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* 点击效果 */
.rounded-download-btn:active {
  transform: translateY(1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 禁用状态 */
.rounded-download-btn:disabled {
  background: #95a5a6;
  cursor: not-allowed;
  transform: none !important;
}