:root {
            --primary-color: #0a4d8c;
            --secondary-color: #e31837;
            --accent-color: #f8b739;
            --dark-color: #1a2b3c;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 50px 0;
            }
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color);
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--dark-color);
            margin: 0 5px;
            transition: all 0.3s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary-color);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary-color);
            font-weight: 600;
        }
        .hero-section {
            background: linear-gradient(rgba(10, 77, 140, 0.85), rgba(26, 43, 60, 0.9)), url('https://images.unsplash.com/photo-1581094794329-c8112a89af12?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 150px 0 100px;
            position: relative;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 25px;
        }
        @media (max-width: 768px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
        }
        .hero-section p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            max-width: 700px;
        }
        .service-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .service-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background-color: rgba(10, 77, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .service-icon i {
            font-size: 30px;
            color: var(--primary-color);
        }
        .stats-section {
            background-color: var(--light-color);
        }
        .stat-item {
            text-align: center;
            padding: 20px;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        .case-study-card {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
            height: 100%;
        }
        .case-study-card:hover {
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .case-study-img {
            height: 200px;
            overflow: hidden;
        }
        .case-study-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all 0.5s;
        }
        .case-study-card:hover .case-study-img img {
            transform: scale(1.05);
        }
        .team-member {
            text-align: center;
            margin-bottom: 30px;
        }
        .team-member-img {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            overflow: hidden;
            margin: 0 auto 20px;
            border: 5px solid var(--light-color);
        }
        .team-member-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        friendlink {
            display: block;
            margin-top: 30px;
            padding-top: 30px;
            border-top: 1px solid #eee;
        }
        .flink {
            display: inline-block;
            margin: 5px 10px;
            padding: 5px 15px;
            background-color: var(--light-color);
            border-radius: 20px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s;
            font-size: 0.9rem;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: var(--dark-color);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 60px;
        }
        footer h5 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.2rem;
        }
        footer a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: all 0.3s;
        }
        footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        .btn-primary-custom {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            color: white;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .btn-primary-custom:hover {
            background-color: #083a6a;
            border-color: #083a6a;
            transform: translateY(-3px);
        }
        .btn-secondary-custom {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            color: white;
            padding: 12px 30px;
            font-weight: 600;
            border-radius: 5px;
            transition: all 0.3s;
        }
        .btn-secondary-custom:hover {
            background-color: #b8142c;
            border-color: #b8142c;
            transform: translateY(-3px);
        }
        @media (max-width: 992px) {
            .hero-section h1 {
                font-size: 2.8rem;
            }
            .stat-number {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 120px 0 80px;
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
            .section-padding {
                padding: 60px 0;
            }
        }
        .fade-in {
            animation: fadeIn 1s ease-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }