:root {
            --primary-color: #0056b3;
            --secondary-color: #17a2b8;
            --dark-color: #343a40;
            --light-color: #f8f9fa;
            --accent-color: #ff6b6b;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            padding: 0.5rem 1rem;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary-color) !important;
            transform: translateY(-2px);
        }
        .hero {
            background: linear-gradient(135deg, var(--primary-color) 0%, #007bff 100%);
            color: white;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        .hero p {
            font-size: 1.25rem;
            max-width: 700px;
            margin: 0 auto 2rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border: none;
            padding: 12px 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #004085;
            transform: scale(1.05);
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--primary-color);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
        }
        .card {
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            transition: var(--transition);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .card-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .service-card, .product-card, .team-card {
            border-radius: 10px;
            overflow: hidden;
        }
        .img-hover-zoom {
            overflow: hidden;
            border-radius: 10px 10px 0 0;
        }
        .img-hover-zoom img {
            transition: transform 0.5s ease;
            width: 100%;
            height: 250px;
            object-fit: cover;
        }
        .img-hover-zoom:hover img {
            transform: scale(1.1);
        }
        .team-card img {
            height: 250px;
            object-fit: cover;
        }
        .testimonial {
            background-color: var(--light-color);
            padding: 60px 0;
        }
        .testimonial-item {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 15px;
        }
        .testimonial-img {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            margin-bottom: 15px;
        }
        .news-card {
            border-left: 5px solid var(--primary-color);
            padding-left: 20px;
            margin-bottom: 30px;
        }
        .news-card h5 a {
            color: var(--dark-color);
            text-decoration: none;
            transition: var(--transition);
        }
        .news-card h5 a:hover {
            color: var(--primary-color);
        }
        .contact-info i {
            color: var(--primary-color);
            font-size: 1.5rem;
            margin-right: 15px;
            vertical-align: middle;
        }
        .contact-info p {
            margin-bottom: 1.5rem;
        }
        .footer {
            background-color: var(--dark-color);
            color: white;
            padding: 60px 0 20px;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
        }
        .footer-bottom {
            border-top: 1px solid #444;
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.9rem;
        }
        .friendlink {
            background-color: #f1f1f1;
            padding: 40px 0;
            text-align: center;
        }
        .flink {
            display: inline-block;
            margin: 10px 15px;
            padding: 8px 20px;
            background: white;
            border-radius: 30px;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            box-shadow: 0 3px 10px rgba(0,0,0,0.08);
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2.5rem; }
            .hero p { font-size: 1.1rem; }
            .section-title { font-size: 1.8rem; }
        }