:root {
            --primary: #1a365d;
            --secondary: #d4af37;
            --accent: #2d3748;
            --light: #f8f9fa;
            --dark: #212529;
        }
        body {
            font-family: 'Helvetica Neue', 'Microsoft YaHei', Arial, sans-serif;
            color: var(--dark);
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .navbar-brand span {
            color: var(--secondary);
        }
        .hero {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1542744095-fcf48d80b0fd?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 8rem 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            text-align: center;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary);
        }
        .service-card, .project-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
            border: none;
            border-radius: 10px;
            overflow: hidden;
        }
        .service-card:hover, .project-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--secondary);
            margin-bottom: 1.5rem;
        }
        .client-logo {
            filter: grayscale(100%);
            opacity: 0.7;
            transition: all 0.3s ease;
        }
        .client-logo:hover {
            filter: grayscale(0);
            opacity: 1;
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background: var(--light);
            border-radius: 30px;
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #dee2e6;
        }
        .flink:hover {
            background: var(--primary);
            color: white;
            transform: scale(1.05);
        }
        .footer {
            background: var(--primary);
            color: white;
            padding-top: 3rem;
        }
        .footer a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: var(--secondary);
        }
        .contact-info i {
            width: 30px;
            color: var(--secondary);
        }
        .btn-custom {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-custom:hover {
            background: #b8941f;
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(212, 175, 55, 0.3);
        }
        .news-card {
            border-left: 4px solid var(--secondary);
        }
        .timeline {
            position: relative;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--secondary);
        }
        .timeline-item {
            position: relative;
            padding-left: 60px;
            margin-bottom: 30px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 5px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary);
            border: 4px solid var(--secondary);
        }
        @media (max-width: 768px) {
            .hero {
                padding: 5rem 0;
            }
            .section-title {
                margin-bottom: 2rem;
            }
            .timeline::before {
                left: 15px;
            }
            .timeline-item {
                padding-left: 50px;
            }
        }