:root {
            --primary-color: #1a3a6c;
            --secondary-color: #c9a96e;
            --accent-color: #8b0000;
            --light-bg: #f8f9fa;
            --dark-text: #333333;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 600;
            color: var(--primary-color);
        }
        .navbar {
            background-color: rgba(26, 58, 108, 0.95);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            padding: 15px 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 700;
            color: white !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            color: rgba(255, 255, 255, 0.9) !important;
            font-weight: 500;
            margin: 0 8px;
            padding: 8px 16px !important;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: white !important;
            background-color: rgba(201, 169, 110, 0.2);
            transform: translateY(-2px);
        }
        .hero {
            background: linear-gradient(rgba(26, 58, 108, 0.85), rgba(26, 58, 108, 0.9)), url('https://images.unsplash.com/photo-1589829545856-d10d557cf95f?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 150px 0 100px;
            min-height: 85vh;
            display: flex;
            align-items: center;
        }
        .hero h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 25px;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
        }
        .hero .lead {
            font-size: 1.3rem;
            margin-bottom: 30px;
            max-width: 800px;
        }
        .btn-primary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 12px 32px;
            font-weight: 600;
            border-radius: 4px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #b8944a;
            border-color: #b8944a;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        .service-card, .team-card, .case-card, .news-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            height: 100%;
        }
        .service-card:hover, .team-card:hover, .case-card:hover, .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--secondary-color);
            margin-bottom: 20px;
        }
        .team-img {
            height: 280px;
            object-fit: cover;
            object-position: top;
            border-bottom: 3px solid var(--secondary-color);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background-color: var(--secondary-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: var(--secondary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--secondary-color);
        }
        .friendlink {
            background-color: var(--light-bg);
            padding: 80px 0;
        }
        .flink {
            display: inline-block;
            background-color: white;
            padding: 12px 24px;
            margin: 8px;
            border-radius: 6px;
            color: var(--primary-color);
            font-weight: 500;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            text-decoration: none;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-5px);
        }
        footer {
            background-color: #1a1f2e;
            color: rgba(255, 255, 255, 0.8);
        }
        footer a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .footer-bottom {
            background-color: rgba(0, 0, 0, 0.3);
            padding: 20px 0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            .hero {
                padding: 120px 0 80px;
                min-height: 70vh;
            }
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero .lead {
                font-size: 1.1rem;
            }
            .navbar-brand {
                font-size: 1.5rem;
            }
        }
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .section-divider {
            height: 3px;
            width: 80px;
            background-color: var(--secondary-color);
            margin: 0 auto 40px;
        }
        .contact-form .form-control {
            padding: 15px;
            border-radius: 6px;
            border: 1px solid #ddd;
            margin-bottom: 20px;
        }
        .contact-form .form-control:focus {
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 0.25rem rgba(201, 169, 110, 0.25);
        }