body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f5f5f5;
        }
        header {
            background-color: #4CAF50;
            color: white;
            padding: 20px;
            text-align: center;
            border-radius: 5px;
            margin-bottom: 30px;
        }
        h1 {
            margin: 0;
            font-size: 28px;
        }
        h2 {
            color: #4CAF50;
            border-bottom: 2px solid #4CAF50;
            padding-bottom: 5px;
            margin-top: 30px;
        }
        .app-container {
            background-color: white;
            border-radius: 5px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        .app-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        .app-icon {
            width: 60px;
            height: 60px;
            border-radius: 10px;
            margin-right: 15px;
            object-fit: cover;
        }
        .app-title {
            font-size: 20px;
            font-weight: bold;
            margin: 0;
        }
        .app-rating {
            color: #FFC107;
            margin-left: 10px;
        }
        .download-btn {
            display: inline-block;
            background-color: #4CAF50;
            color: white;
            padding: 10px 20px;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            margin-top: 10px;
            transition: background-color 0.3s;
        }
        .download-btn:hover {
            background-color: #45a049;
        }
        .seo-content {
            background-color: white;
            border-radius: 5px;
            padding: 20px;
            margin-top: 30px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        footer {
            text-align: center;
            margin-top: 30px;
            padding: 20px;
            color: #666;
            font-size: 14px;
        }