* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", sans-serif;
        }
        body {
            background-color: #f5f7fa;
            color: #333;
            line-height: 1.6;
            padding: 20px;
            max-width: 1200px;
            margin: 0 auto;
        }
        header {
            text-align: center;
            padding: 40px 20px;
            background: linear-gradient(135deg, #1a6bc3 0%, #0c2b5a 100%);
            color: white;
            border-radius: 10px;
            margin-bottom: 30px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        h1 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
        }
        .subtitle {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
            opacity: 0.9;
        }
        section {
            background-color: white;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            border-left: 4px solid #1a6bc3;
        }
        h2 {
            color: #0c2b5a;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
            font-size: 1.8rem;
        }
        h3 {
            color: #1a6bc3;
            margin: 20px 0 15px;
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 15px;
            text-align: justify;
        }
        ul, ol {
            margin: 15px 0;
            padding-left: 30px;
        }
        li {
            margin-bottom: 10px;
        }
        .case-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        .case-card {
            background: #f9f9f9;
            border-radius: 8px;
            padding: 20px;
            border-left: 4px solid #4CAF50;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .case-card h4 {
            color: #0c2b5a;
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        .highlight {
            background-color: #fffde7;
            padding: 15px;
            border-radius: 5px;
            border-left: 4px solid #FFC107;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        th {
            background-color: #f2f6fc;
            color: #0c2b5a;
            font-weight: bold;
        }
        tr:hover {
            background-color: #f5f9ff;
        }
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        .product-card {
            background: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-top: 4px solid #1a6bc3;
        }
        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .product-card h4 {
            color: #0c2b5a;
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        .product-card p {
            margin-bottom: 15px;
            font-size: 0.95rem;
            color: #555;
        }
        .btn {
            display: inline-block;
            background-color: #1a6bc3;
            color: white;
            padding: 10px 20px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            transition: background-color 0.3s;
            border: none;
            cursor: pointer;
            text-align: center;
        }
        .btn:hover {
            background-color: #0c2b5a;
        }
        .btn-large {
            padding: 12px 30px;
            font-size: 1.1rem;
        }
        .platform-intro {
            background: linear-gradient(135deg, #f2f6fc 0%, #e1eaf9 100%);
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            margin: 30px 0;
        }
        .platform-intro h2 {
            color: #0c2b5a;
            border-bottom: none;
        }
        .footnote {
            font-size: 0.9rem;
            color: #666;
            margin-top: 30px;
            padding-top: 15px;
            border-top: 1px solid #eee;
            text-align: center;
        }
        @media (max-width: 768px) {
            body {
                padding: 10px;
            }
            h1 {
                font-size: 2rem;
            }
            .case-container, .product-grid {
                grid-template-columns: 1fr;
            }
        }
/* CSS Document */