:root {
            --primary-blue: #0a2463;
            --secondary-blue: #1e3a8a;
            --accent-gold: #d4af37;
            --light-blue: #e6f2ff;
            --dark-navy: #051923;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-blue) !important;
        }
        .nav-link {
            font-weight: 500;
            transition: color 0.3s ease;
        }
        .nav-link:hover {
            color: var(--accent-gold) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 36, 99, 0.85), rgba(5, 25, 35, 0.9)), url('https://images.unsplash.com/photo-1544551763-46a013bb70d5?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 160px 0 100px;
        }
        .hero-title {
            font-size: 3.5rem;
            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: 3rem;
        }
        .section-title:after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 0;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent-gold);
        }
        .service-card {
            border: none;
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(10, 36, 99, 0.15) !important;
        }
        .service-icon {
            color: var(--accent-gold);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }
        .stats-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-navy) 100%);
            color: white;
            padding: 80px 0;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--accent-gold);
        }
        .project-image {
            height: 300px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .project-card:hover .project-image {
            transform: scale(1.05);
        }
        .contact-info i {
            color: var(--accent-gold);
            font-size: 1.2rem;
            width: 30px;
        }
        .footer {
            background-color: var(--dark-navy);
            color: #ddd;
            padding-top: 60px;
        }
        .footer a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: var(--accent-gold);
        }
        .flink {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            color: white;
            padding: 8px 20px;
            border-radius: 30px;
            margin: 5px 10px;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .flink:hover {
            background: var(--accent-gold);
            color: var(--dark-navy);
            transform: translateY(-3px);
        }
        .friendlink {
            background: var(--light-blue);
            padding: 60px 0;
        }
        .btn-primary-custom {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 12px 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary-custom:hover {
            background-color: var(--accent-gold);
            border-color: var(--accent-gold);
            color: var(--dark-navy);
            transform: translateY(-3px);
        }
        .news-card {
            border-left: 4px solid var(--accent-gold);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }