:root {
            --primary-color: #0a3d62;
            --secondary-color: #3c6382;
            --accent-color: #f9ca24;
            --light-color: #f5f6fa;
            --dark-color: #2c3e50;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--primary-color);
        }
        .navbar {
            background-color: rgba(10, 61, 98, 0.95) !important;
            padding: 1rem 0;
            transition: all 0.4s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            color: white !important;
        }
        .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 61, 98, 0.85), rgba(44, 62, 80, 0.9)), url('https://images.unsplash.com/photo-1497366754035-f200968a6e72?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 10rem 0 6rem;
            position: relative;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
        }
        .hero-subtitle {
            font-size: 1.3rem;
            max-width: 700px;
            margin: 0 auto 2.5rem;
            opacity: 0.9;
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 3.5rem;
            text-align: center;
        }
        .section-title h2 {
            display: inline-block;
            font-size: 2.5rem;
            padding-bottom: 15px;
        }
        .section-title h2:after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--accent-color);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
        }
        .card-hover {
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            height: 100%;
            border: none;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .icon-box {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: white;
            font-size: 2rem;
        }
        .btn-custom {
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            color: white;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-custom:hover {
            color: white;
            transform: scale(1.05);
            box-shadow: 0 8px 20px rgba(10, 61, 98, 0.3);
        }
        .timeline {
            position: relative;
            padding-left: 50px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 20px;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }
        .timeline-icon {
            position: absolute;
            left: -40px;
            top: 5px;
            width: 40px;
            height: 40px;
            background: var(--accent-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--dark-color);
            font-size: 1.2rem;
            z-index: 1;
        }
        footer {
            background-color: var(--dark-color);
            color: #ccc;
            padding-top: 4rem;
        }
        footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: var(--accent-color);
        }
        .footer-bottom {
            background-color: rgba(0, 0, 0, 0.3);
            padding: 1.5rem 0;
            margin-top: 3rem;
        }
        .flink {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 8px 20px;
            margin: 5px;
            border-radius: 30px;
            transition: all 0.3s;
        }
        .flink:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .section-title h2 {
                font-size: 2rem;
            }
            .navbar-nav {
                text-align: center;
                background: rgba(10, 61, 98, 0.98);
                padding: 1rem;
                border-radius: 10px;
                margin-top: 10px;
            }
        }
        .stats-counter {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
        }
        .stats-label {
            font-size: 1.1rem;
            color: var(--secondary-color);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .contact-info-box {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            height: 100%;
            transition: transform 0.3s;
        }
        .contact-info-box:hover {
            transform: translateY(-5px);
        }