:root {
            --primary-blue: #0a3d6b;
            --secondary-teal: #1a9c9c;
            --accent-gold: #d4af37;
            --light-bg: #f8f9fa;
            --dark-text: #212529;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--dark-text);
            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;
        }
        .nav-link:hover {
            color: var(--secondary-teal) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 61, 107, 0.85), rgba(26, 156, 156, 0.8)), url('https://images.unsplash.com/photo-1497366216548-37526070297c?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 10rem 0;
        }
        .section-title {
            color: var(--primary-blue);
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 2.5rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 80px;
            height: 4px;
            background: var(--accent-gold);
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .service-card {
            border: none;
            border-radius: 12px;
            transition: transform 0.4s, box-shadow 0.4s;
            height: 100%;
            overflow: hidden;
        }
        .service-card:hover {
            transform: translateY(-12px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--secondary-teal);
            margin-bottom: 1.5rem;
        }
        .case-study-img {
            height: 300px;
            object-fit: cover;
            border-radius: 8px;
            transition: transform 0.5s;
        }
        .case-study-img:hover {
            transform: scale(1.03);
        }
        .team-member {
            text-align: center;
            margin-bottom: 2rem;
        }
        .team-img {
            width: 180px;
            height: 180px;
            object-fit: cover;
            border-radius: 50%;
            border: 5px solid var(--light-bg);
            margin-bottom: 1rem;
        }
        .contact-info li {
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }
        .contact-icon {
            color: var(--secondary-teal);
            width: 30px;
        }
        footer {
            background-color: var(--primary-blue);
            color: white;
            padding-top: 3rem;
        }
        .flink {
            display: inline-block;
            padding: 8px 15px;
            margin: 5px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            color: #ddd;
            text-decoration: none;
            transition: all 0.3s;
        }
        .flink:hover {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            transform: translateY(-3px);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--secondary-teal);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            transition: opacity 0.3s;
            z-index: 1000;
        }
        .back-to-top.show {
            opacity: 1;
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-blue);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 6rem 0;
            }
            .stats-number {
                font-size: 2.5rem;
            }
        }