:root {
            --primary-blue: #0a3d62;
            --secondary-blue: #1e5799;
            --accent-gold: #daa520;
            --light-gray: #f8f9fa;
            --dark-gray: #343a40;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-blue) !important;
        }
        .navbar-brand span {
            color: var(--accent-gold);
        }
        .hero-section {
            background: linear-gradient(rgba(10, 61, 98, 0.85), rgba(30, 87, 153, 0.9)), url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 150px 0 100px;
            position: relative;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .section-title {
            position: relative;
            margin-bottom: 3rem;
            color: var(--primary-blue);
            font-weight: 700;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 60px;
            height: 4px;
            background-color: var(--accent-gold);
        }
        .text-center .section-title:after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            background: white;
            border-radius: 10px;
            padding: 2rem;
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: var(--transition);
            border-top: 4px solid transparent;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
            border-top-color: var(--accent-gold);
        }
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
        }
        .service-box {
            background: var(--light-gray);
            padding: 2rem;
            border-radius: 10px;
            height: 100%;
            transition: var(--transition);
        }
        .service-box:hover {
            background: white;
            box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-blue);
            line-height: 1;
        }
        .stat-label {
            font-size: 1.1rem;
            color: var(--dark-gray);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .news-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .news-img {
            height: 200px;
            object-fit: cover;
        }
        .contact-info-box {
            background: var(--light-gray);
            padding: 2rem;
            border-radius: 10px;
            margin-bottom: 1.5rem;
            transition: var(--transition);
        }
        .contact-info-box:hover {
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .contact-icon {
            font-size: 2rem;
            color: var(--primary-blue);
            margin-bottom: 1rem;
        }
        .friendlink {
            background: var(--light-gray);
            padding: 4rem 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 50px;
            text-decoration: none;
            color: var(--dark-gray);
            transition: var(--transition);
            font-weight: 500;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
        }
        .flink:hover {
            background: var(--primary-blue);
            color: white;
            transform: translateY(-3px);
        }
        .footer {
            background: var(--primary-blue);
            color: white;
            padding: 4rem 0 2rem;
        }
        .footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--accent-gold);
        }
        .copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 2rem;
            margin-top: 3rem;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
        }
        .btn-primary-custom {
            background-color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 0.7rem 2rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary-custom:hover {
            background-color: var(--secondary-blue);
            border-color: var(--secondary-blue);
            transform: translateY(-2px);
        }
        .btn-outline-custom {
            color: var(--primary-blue);
            border-color: var(--primary-blue);
            padding: 0.7rem 2rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-custom:hover {
            background-color: var(--primary-blue);
            color: white;
            transform: translateY(-2px);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-blue);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 1000;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--secondary-blue);
            color: white;
            transform: translateY(-5px);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
        }
        .timeline:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 3px;
            background: var(--accent-gold);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
        }
        .timeline-item:before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--primary-blue);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--accent-gold);
        }
        .map-container {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .industry-icon {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }