:root {
            --primary-color: #0d6efd;
            --secondary-color: #6c757d;
            --accent-color: #198754;
            --light-color: #f8f9fa;
            --dark-color: #212529;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(13, 110, 253, 0.8), rgba(25, 135, 84, 0.8)), url('https://images.unsplash.com/photo-1503376780353-7e6692767b70?ixlib=rb-4.0.3&auto=format&fit=crop&w=1950&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            text-align: center;
            font-weight: 700;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent-color);
        }
        .service-card, .car-card, .package-card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .service-card:hover, .car-card:hover, .package-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .car-card img {
            height: 220px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .car-card:hover img {
            transform: scale(1.05);
        }
        .testimonial-card {
            border-left: 5px solid var(--primary-color);
            background: var(--light-color);
        }
        .friend-links a.flink {
            display: inline-block;
            padding: 8px 16px;
            margin: 5px;
            background: #f1f1f1;
            border-radius: 20px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .friend-links a.flink:hover {
            background: var(--primary-color);
            color: white;
            transform: scale(1.05);
        }
        footer {
            background: var(--dark-color);
            color: var(--light-color);
        }
        .social-icon {
            font-size: 1.2rem;
            margin: 0 10px;
            color: #ccc;
            transition: color 0.3s ease;
        }
        .social-icon:hover {
            color: var(--primary-color);
        }
        .btn-primary {
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: #0b5ed7;
            transform: translateY(-3px);
        }
        .sticky-nav {
            position: sticky;
            top: 0;
            z-index: 1020;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .contact-info i {
            width: 30px;
            color: var(--accent-color);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }