:root {
            --primary: #1a365d;
            --secondary: #2c5282;
            --accent: #38b2ac;
            --light: #f7fafc;
            --dark: #2d3748;
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 1.5rem;
        }
        .navbar {
            background-color: rgba(26, 54, 93, 0.95) !important;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            transition: var(--transition);
        }
        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
            color: white !important;
        }
        .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--accent) !important;
            transform: translateY(-2px);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            padding: 8rem 0 6rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            animation: fadeInUp 1s ease;
        }
        .hero-section p {
            font-size: 1.3rem;
            opacity: 0.9;
            margin-bottom: 2rem;
        }
        .btn-primary {
            background-color: var(--accent);
            border: none;
            padding: 0.8rem 2.5rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #2c9c97;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(56, 178, 172, 0.3);
        }
        section {
            padding: 5rem 0;
        }
        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
        }
        .section-title:after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 0;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
        }
        .card {
            border: none;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            height: 100%;
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
        }
        .card-icon {
            font-size: 3rem;
            color: var(--accent);
            margin-bottom: 1.5rem;
        }
        .service-card {
            padding: 2.5rem;
            text-align: center;
        }
        .img-hover-zoom {
            overflow: hidden;
            border-radius: 12px 12px 0 0;
        }
        .img-hover-zoom img {
            transition: transform 0.5s ease;
        }
        .img-hover-zoom:hover img {
            transform: scale(1.05);
        }
        .stats-counter {
            background: linear-gradient(rgba(26, 54, 93, 0.9), rgba(26, 54, 93, 0.9)), url('https://images.unsplash.com/photo-1611974789855-9c2a0a7236a3?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
            background-size: cover;
            background-attachment: fixed;
            color: white;
            padding: 6rem 0;
        }
        .counter-item h3 {
            font-size: 3.5rem;
            color: white;
            font-weight: 800;
        }
        .team-member {
            text-align: center;
            padding: 2rem;
        }
        .team-img {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 1.5rem;
            border: 5px solid #f1f1f1;
        }
        footer {
            background-color: var(--dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 4rem 0 2rem;
        }
        footer h5 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .friendlink-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .flink {
            background: rgba(255, 255, 255, 0.1);
            padding: 0.8rem 1.2rem;
            border-radius: 8px;
            color: white;
            text-decoration: none;
            text-align: center;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flink:hover {
            background: var(--accent);
            transform: translateY(-3px);
            color: white;
        }
        .contact-info li {
            margin-bottom: 1rem;
            display: flex;
            align-items: flex-start;
        }
        .contact-info i {
            color: var(--accent);
            margin-right: 1rem;
            margin-top: 0.3rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            margin-top: 3rem;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--accent);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            cursor: pointer;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        .scroll-top.active {
            opacity: 1;
            visibility: visible;
        }
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        @media (max-width: 768px) {
            .hero-section h1 { font-size: 2.5rem; }
            .hero-section p { font-size: 1.1rem; }
            section { padding: 3rem 0; }
            .friendlink-container { grid-template-columns: repeat(2, 1fr); }
        }