.scg-container {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            max-width: 89%px;
            margin: 0 auto;
            padding: 20px;
            background-color: #f8f9fa;
        }
        .scg-container h1 {
            text-align: center;
            color: #2c3e50;
            margin-bottom: 30px;
            border-bottom: 2px solid #3498db;
            padding-bottom: 15px;
        }
        .scg-container h2 {
            color: #2980b9;
            border-left: 4px solid #3498db;
            padding-left: 10px;
            margin-top: 30px;
        }
        .scg-container h3 {
            color: #16a085;
        }
        .scg-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            background: white;
        }
        .scg-table th, 
        .scg-table td {
            border: 1px solid #ddd;
            padding: 12px;
            text-align: center;
        }
        .scg-table th {
            background-color: #3498db;
            color: white;
            font-weight: bold;
        }
        .scg-table tr:nth-child(even) {
            background-color: #f2f2f2;
        }
        .scg-container ul, 
        .scg-container ol {
            margin: 15px 0;
            padding-left: 30px;
        }
        .scg-container li {
            margin-bottom: 8px;
        }
        .scg-strong {
            color: #e74c3c;
            font-weight: bold;
        }
        .scg-material-class {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin: 30px 0;
        }
        .scg-class-card {
            flex: 1;
            min-width: 300px;
            background: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
            border-top: 4px solid #3498db;
        }
        .scg-class-card h3 {
            margin-top: 0;
            color: #2c3e50;
        }
        .scg-price-tag {
            display: inline-block;
            padding: 3px 8px;
            background: #f1c40f;
            border-radius: 4px;
            font-weight: bold;
            margin-left: 5px;
        }
        .scg-note-box {
            background: #e3f2fd;
            border-left: 4px solid #2196f3;
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 4px 4px 0;
        }
        .scg-comparison-table {
            overflow-x: auto;
        }
        .scg-warning {
            background: #ffecb3;
            border-left: 4px solid #ffc107;
            padding: 15px;
            margin: 25px 0;
            border-radius: 0 4px 4px 0;
        }
        .scg-key-point {
            background: #e8f5e9;
            border-left: 4px solid #4caf50;
            padding: 15px;
            margin: 25px 0;
            border-radius: 0 4px 4px 0;
        }
        @media (max-width: 768px) {
            .scg-material-class {
                flex-direction: column;
            }
        }