:root {
            --primary-blue: #0a4a7a;
            --secondary-blue: #1c7cc7;
            --accent-green: #28a745;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.8;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .navbar-brand i {
            color: var(--accent-green);
            margin-right: 10px;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 74, 122, 0.85), rgba(28, 124, 199, 0.85)), url('https://images.unsplash.com/photo-1559757148-5c350d0d3c56?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
            min-height: 80vh;
            display: flex;
            align-items: center;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0,0,0,0.3);
        }
        .section-title {
            color: var(--primary-blue);
            font-weight: 700;
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 2.5rem;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent-green);
            border-radius: 2px;
        }
        .card-hover {
            transition: var(--transition);
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .icon-box {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 1.8rem;
        }
        .btn-primary-custom {
            background: linear-gradient(to right, var(--primary-blue), var(--secondary-blue));
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(10, 74, 122, 0.3);
        }
        .flink a {
            display: inline-block;
            background: var(--light-bg);
            padding: 10px 20px;
            margin: 5px 8px;
            border-radius: 50px;
            color: var(--primary-blue);
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid #dee2e6;
            font-weight: 500;
        }
        .flink a:hover {
            background: var(--primary-blue);
            color: white;
            transform: translateY(-3px);
        }
        .footer {
            background: linear-gradient(to right, #0d3b66, var(--primary-blue));
            color: white;
            padding-top: 60px;
        }
        .footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .contact-info i {
            width: 30px;
            color: var(--accent-green);
        }
        .img-hover-zoom {
            overflow: hidden;
            border-radius: 10px;
        }
        .img-hover-zoom img {
            transition: transform 0.5s ease;
        }
        .img-hover-zoom:hover img {
            transform: scale(1.05);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--secondary-blue);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 30px;
            padding-left: 25px;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -33px;
            top: 5px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent-green);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--secondary-blue);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-blue);
            display: block;
            line-height: 1;
        }
        .stats-label {
            font-size: 1.1rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .stats-number {
                font-size: 2.2rem;
            }
        }