:root {
            --primary-blue: #0056b3;
            --secondary-blue: #007bff;
            --light-blue: #e7f1ff;
            --accent-teal: #20c997;
            --dark-gray: #343a40;
            --light-gray: #f8f9fa;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            padding: 0.5rem 1rem;
            transition: var(--transition);
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: var(--primary-blue) !important;
            border-bottom: 2px solid var(--accent-teal);
        }
        .hero-section {
            background: linear-gradient(rgba(0, 86, 179, 0.85), rgba(0, 123, 255, 0.8)), url('https://images.unsplash.com/photo-1519494026892-80bbd2d6fd0d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
            color: white;
            padding: 8rem 0;
            min-height: 90vh;
            display: flex;
            align-items: center;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .hero-subtitle {
            font-size: 1.5rem;
            margin-bottom: 2.5rem;
            max-width: 800px;
        }
        .btn-primary-custom {
            background-color: var(--accent-teal);
            border-color: var(--accent-teal);
            padding: 0.75rem 2rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background-color: #17a589;
            border-color: #17a589;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .section-title {
            color: var(--primary-blue);
            font-weight: 700;
            margin-bottom: 3rem;
            position: relative;
            padding-bottom: 1rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent-teal);
            border-radius: 2px;
        }
        .card-hover {
            transition: var(--transition);
            border: none;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            height: 100%;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .icon-wrapper {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--light-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            color: var(--primary-blue);
            font-size: 2rem;
        }
        .service-card .icon-wrapper {
            background: rgba(32, 201, 151, 0.1);
            color: var(--accent-teal);
        }
        .stats-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
            color: white;
            padding: 5rem 0;
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .partner-logo {
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
            max-height: 60px;
            object-fit: contain;
        }
        .partner-logo:hover {
            filter: grayscale(0);
            opacity: 1;
        }
        .news-card {
            border-left: 5px solid var(--accent-teal);
        }
        .footer {
            background-color: var(--dark-gray);
            color: #ccc;
            padding-top: 4rem;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.2s;
        }
        .footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer-bottom {
            background-color: rgba(0,0,0,0.2);
            padding: 1.5rem 0;
            margin-top: 3rem;
            font-size: 0.9rem;
        }
        .flink {
            display: inline-block;
            padding: 0.5rem 1rem;
            margin: 0.25rem;
            background: rgba(255,255,255,0.1);
            border-radius: 4px;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.2);
        }
        .flink:hover {
            background: rgba(255,255,255,0.2);
            text-decoration: none !important;
            border-color: var(--accent-teal);
            transform: scale(1.05);
        }
        .contact-info i {
            width: 30px;
            color: var(--accent-teal);
        }
        .map-container {
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            height: 100%;
            min-height: 300px;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .hero-subtitle {
                font-size: 1.2rem;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }