:root {
            --primary-color: #0056b3;
            --secondary-color: #f8f9fa;
            --accent-color: #ffc107;
            --text-dark: #333;
            --text-light: #666;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--text-dark);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: var(--shadow);
            padding: 1rem 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: bold;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .nav-link {
            color: var(--text-dark) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        .hero {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 8rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
        }
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: #004494;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        section {
            padding: 5rem 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            font-weight: 700;
            color: var(--primary-color);
            position: relative;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--accent-color);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }
        .card {
            border: none;
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
        }
        .card-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .service-card, .product-card {
            padding: 2rem;
            text-align: center;
        }
        .img-fluid {
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .img-fluid:hover {
            transform: scale(1.02);
        }
        .contact-info {
            list-style: none;
            padding-left: 0;
        }
        .contact-info li {
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .contact-info i {
            color: var(--primary-color);
            margin-right: 10px;
            width: 24px;
        }
        .footer {
            background-color: #2c3e50;
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer a:hover {
            color: var(--accent-color);
        }
        .friendlink {
            background-color: var(--secondary-color);
            padding: 3rem 0;
        }
        .flink {
            display: inline-block;
            margin: 0.5rem 1rem;
            padding: 0.5rem 1.5rem;
            background: white;
            border-radius: 50px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            color: var(--text-dark);
            text-decoration: none;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .schema-ld {
            display: none;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero p {
                font-size: 1rem;
            }
            section {
                padding: 3rem 0;
            }
        }