:root {
            --primary-color: #0a2c66;
            --secondary-color: #e63946;
            --accent-color: #2a9d8f;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            margin: 0 0.5rem;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--secondary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 44, 102, 0.85), rgba(10, 44, 102, 0.9)), url('https://images.unsplash.com/photo-1519389950473-47ba0277781c?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 8rem 0;
            margin-top: 76px;
        }
        .section-title {
            color: var(--primary-color);
            font-weight: 700;
            margin-bottom: 2.5rem;
            position: relative;
            padding-bottom: 15px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background-color: var(--secondary-color);
        }
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .service-icon, .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.6rem 2rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #0a1e4d;
            border-color: #0a1e4d;
            transform: scale(1.05);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 0.6rem 2rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background-color: #c1121f;
            border-color: #c1121f;
            transform: scale(1.05);
        }
        footer {
            background-color: #1a2530;
            color: #b0b7c3;
        }
        footer a {
            color: #b0b7c3;
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: white;
        }
        .flink {
            display: inline-block;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            padding: 10px 20px;
            margin: 5px 10px 5px 0;
            color: #b0b7c3;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .flink:hover {
            background-color: rgba(255, 255, 255, 0.2);
            color: white;
            border-color: var(--accent-color);
            text-decoration: none;
            transform: translateY(-2px);
        }
        .friendlink {
            border-top: 1px solid #2d3748;
            border-bottom: 1px solid #2d3748;
            padding: 2rem 0;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .stat-label {
            font-size: 1rem;
            color: #666;
            text-transform: uppercase;
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background-color: var(--primary-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2rem;
        }
        .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(--primary-color);
        }
        .news-card .card-img-top {
            height: 200px;
            object-fit: cover;
        }
        .contact-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(10, 44, 102, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            color: var(--primary-color);
            font-size: 1.3rem;
        }
        .form-control, .form-select {
            border-radius: 8px;
            padding: 0.75rem 1rem;
            border: 1px solid #ced4da;
            transition: var(--transition);
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(10, 44, 102, 0.25);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--secondary-color);
            transform: translateY(-5px);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 5rem 0;
                text-align: center;
            }
            .section-title {
                text-align: center;
            }
            .section-title::after {
                left: 50%;
                transform: translateX(-50%);
            }
            .stat-number {
                font-size: 2rem;
            }
        }