:root {
            --primary-color: #0056b3;
            --secondary-color: #ff6b00;
            --dark-color: #333;
            --light-color: #f8f9fa;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: var(--dark-color);
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary-color);
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary-color);
        }
        .nav-link {
            font-weight: 600;
            padding: 0.5rem 1.2rem;
            border-radius: 4px;
        }
        .nav-link:hover, .nav-link.active {
            background-color: var(--primary-color);
            color: white;
        }
        .hero-section {
            background: linear-gradient(rgba(0, 84, 180, 0.85), rgba(0, 84, 180, 0.9)), url('https://picsum.photos/1920/1080?random=1') center/cover no-repeat;
            color: white;
            padding: 8rem 0;
            text-align: center;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        }
        .hero-section p {
            font-size: 1.4rem;
            max-width: 800px;
            margin: 0 auto 2rem;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border: none;
            padding: 0.8rem 2.5rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #e05a00;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 0, 0.3);
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: var(--transition);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.15);
        }
        .card-img-top {
            height: 220px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 2rem;
        }
        .flink {
            display: inline-block;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            background: var(--light-color);
            border-radius: 8px;
            border: 1px solid #ddd;
            transition: var(--transition);
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: scale(1.05);
        }
        .friendlinks {
            background: #f9f9f9;
            padding: 3rem 0;
            border-top: 1px solid #eee;
            border-bottom: 1px solid #eee;
        }
        footer {
            background: var(--dark-color);
            color: #ccc;
            padding: 3rem 0 1.5rem;
        }
        footer a {
            color: #aaa;
        }
        footer a:hover {
            color: white;
        }
        .contact-info li {
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
        }
        .contact-info i {
            width: 30px;
            color: var(--secondary-color);
        }
        .map-container {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .hero-section {
                padding: 5rem 0;
            }
            .section-padding {
                padding: 3rem 0;
            }
        }