:root {
            --primary-color: #1a365d;
            --secondary-color: #c53030;
            --accent-color: #ed8936;
            --light-bg: #f7fafc;
            --dark-text: #2d3748;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            line-height: 1.7;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(rgba(26, 54, 93, 0.85), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 180px 0 120px;
        }
        .section-title {
            position: relative;
            padding-bottom: 20px;
            margin-bottom: 50px;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
        }
        .service-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            height: 100%;
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .project-card {
            overflow: hidden;
            border: none;
        }
        .project-card img {
            transition: transform 0.5s ease;
        }
        .project-card:hover img {
            transform: scale(1.05);
        }
        .stats-section {
            background: linear-gradient(rgba(26, 54, 93, 0.9), rgba(26, 54, 93, 0.95)), url('https://images.unsplash.com/photo-1503387769-00c5f6d09fc2?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover fixed;
            color: white;
        }
        .flink {
            display: inline-block;
            padding: 8px 20px;
            margin: 5px;
            background: var(--light-bg);
            border-radius: 30px;
            color: var(--primary-color);
            text-decoration: none;
            transition: all 0.3s;
            border: 1px solid #e2e8f0;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .contact-info i {
            width: 40px;
            height: 40px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
        }
        footer {
            background: #2d3748;
            color: #cbd5e0;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: white;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 120px 0 80px;
            }
            .display-4 {
                font-size: 2.2rem;
            }
        }