:root {
            --primary-color: #e63946;
            --secondary-color: #1d3557;
            --accent-color: #a8dadc;
            --light-color: #f1faee;
            --dark-color: #2b2d42;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: #333;
            line-height: 1.8;
        }
        .hero-section {
            background: linear-gradient(rgba(29, 53, 87, 0.85), rgba(29, 53, 87, 0.9)), url('https://images.unsplash.com/photo-1600121848594-d8644e57abab?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 120px 0;
        }
        .service-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .service-icon {
            width: 80px;
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--primary-color), #f4a261);
            border-radius: 50%;
            color: white;
            font-size: 2rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: #c1121f;
            border-color: #c1121f;
            transform: translateY(-3px);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
        }
        .nav-link {
            font-weight: 500;
            color: var(--dark-color);
            transition: color 0.3s ease;
        }
        .nav-link:hover {
            color: var(--primary-color);
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color);
            font-size: 1.5rem;
        }
        .footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 60px 0 20px;
        }
        .footer a {
            color: var(--accent-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .contact-info {
            background-color: var(--light-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .process-step {
            text-align: center;
            padding: 20px;
            position: relative;
        }
        .process-step .step-number {
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-weight: bold;
            font-size: 1.5rem;
        }
        .testimonial-card {
            border-left: 4px solid var(--primary-color);
            padding-left: 20px;
            margin-bottom: 30px;
        }
        .flink {
            display: inline-block;
            background-color: white;
            color: var(--secondary-color);
            padding: 8px 20px;
            margin: 5px 10px;
            border-radius: 30px;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #e0e0e0;
            font-weight: 500;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            border-color: var(--primary-color);
        }
        .friendlink {
            background-color: var(--light-color);
            padding: 40px 0;
        }
        .carousel-item img {
            height: 500px;
            object-fit: cover;
        }
        .price-card {
            border: 2px solid var(--accent-color);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .price-card:hover {
            border-color: var(--primary-color);
        }
        .price-header {
            background-color: var(--secondary-color);
            color: white;
            padding: 20px;
            text-align: center;
        }
        .feature-list li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .feature-list li:last-child {
            border-bottom: none;
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-color);
            display: block;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .carousel-item img {
                height: 300px;
            }
            .display-4 {
                font-size: 2.5rem;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            z-index: 1000;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .back-to-top.show {
            opacity: 1;
        }
        .schema-json {
            display: none;
        }