:root {
            --primary-blue: #0056a6;
            --secondary-blue: #1e7bc0;
            --accent-gold: #d4af37;
            --dark-gray: #333333;
            --light-gray: #f8f9fa;
            --transition: all 0.3s ease;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            color: var(--dark-gray);
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary-blue);
        }
        .hero-section {
            background: linear-gradient(rgba(0, 86, 166, 0.85), rgba(30, 123, 192, 0.9)), url('https://images.unsplash.com/photo-1581094794329-c8112a89af12?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 8rem 0;
        }
        .section-padding {
            padding: 5rem 0;
        }
        .service-card, .news-card, .friendlink-card {
            transition: var(--transition);
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
        }
        .service-card:hover, .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 86, 166, 0.15);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background-color: rgba(0, 86, 166, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--primary-blue);
            font-size: 1.8rem;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            padding: 1rem 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            color: var(--dark-gray) !important;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary-blue) !important;
        }
        .btn-primary {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 0.75rem 2rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: var(--secondary-blue);
            border-color: var(--secondary-blue);
            transform: translateY(-2px);
        }
        footer {
            background-color: #1a2a3a;
            color: #ccc;
        }
        footer a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: white;
        }
        .flink {
            display: inline-block;
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            background-color: rgba(255,255,255,0.05);
            border-radius: 5px;
            transition: var(--transition);
        }
        .flink:hover {
            background-color: rgba(255,255,255,0.1);
            transform: translateY(-3px);
        }
        .sticky-top {
            top: -100px;
            transition: top 0.5s ease;
        }
        .sticky-top.sticky-on {
            top: 0;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1;
        }
        .contact-info-box {
            background-color: var(--light-gray);
            border-left: 4px solid var(--primary-blue);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .map-container {
            height: 400px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .timeline {
            position: relative;
            padding-left: 2rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--primary-blue);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2.2rem;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--primary-blue);
            border: 3px solid white;
            box-shadow: 0 0 0 2px var(--primary-blue);
        }
        .accordion-button:not(.collapsed) {
            background-color: rgba(0, 86, 166, 0.05);
            color: var(--primary-blue);
            font-weight: 600;
        }
        .img-hover-zoom {
            overflow: hidden;
            border-radius: 8px;
        }
        .img-hover-zoom img {
            transition: transform 0.5s ease;
        }
        .img-hover-zoom:hover img {
            transform: scale(1.05);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .stat-number {
                font-size: 2.5rem;
            }
            .display-4 {
                font-size: 2.5rem;
            }
        }