:root {
            --primary-color: #0d6efd;
            --secondary-color: #6c757d;
            --accent-color: #20c997;
            --dark-color: #212529;
            --light-color: #f8f9fa;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.8;
            color: #333;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(13, 110, 253, 0.9) 0%, rgba(32, 201, 151, 0.85) 100%), 
                        url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?ixlib=rb-4.0.3&auto=format&fit=crop&w=2072&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
            position: relative;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.95) !important;
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            padding: 15px 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 600;
            margin: 0 10px;
            color: var(--dark-color) !important;
            position: relative;
            transition: color 0.3s ease;
        }
        .nav-link:hover {
            color: var(--primary-color) !important;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: var(--primary-color);
            transition: width 0.3s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .section-padding {
            padding: 80px 0;
        }
        .feature-card {
            border-radius: 12px;
            border: 1px solid #e9ecef;
            transition: all 0.4s ease;
            height: 100%;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            border-color: var(--primary-color);
        }
        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: white;
            font-size: 2rem;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), #0b5ed7);
            border: none;
            padding: 12px 30px;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(13, 110, 253, 0.2);
        }
        .stats-counter {
            background: linear-gradient(135deg, var(--dark-color), #343a40);
            color: white;
            padding: 60px 0;
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent-color);
        }
        .service-card {
            border-left: 4px solid var(--primary-color);
            padding-left: 20px;
            margin-bottom: 30px;
            transition: all 0.3s ease;
        }
        .service-card:hover {
            border-left-width: 8px;
            padding-left: 16px;
        }
        .testimonial-card {
            background-color: var(--light-color);
            border-radius: 12px;
            padding: 30px;
            margin: 15px;
            position: relative;
        }
        .testimonial-card::before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 20px;
            font-size: 5rem;
            color: var(--primary-color);
            opacity: 0.2;
            font-family: Georgia, serif;
        }
        .team-member {
            text-align: center;
            margin-bottom: 30px;
        }
        .team-img {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 20px;
            border: 5px solid #f1f1f1;
            transition: all 0.3s ease;
        }
        .team-member:hover .team-img {
            border-color: var(--primary-color);
            transform: scale(1.05);
        }
        .contact-info {
            background-color: var(--light-color);
            border-radius: 12px;
            padding: 30px;
            height: 100%;
        }
        .contact-icon {
            width: 60px;
            height: 60px;
            background-color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        footer {
            background-color: var(--dark-color);
            color: #adb5bd;
            padding: 60px 0 20px;
        }
        .footer-links a {
            color: #adb5bd;
            text-decoration: none;
            transition: color 0.3s ease;
            display: block;
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .friendlink {
            display: inline-block;
            margin: 5px 10px;
            padding: 8px 15px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 6px;
            color: #adb5bd;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        .friendlink:hover {
            background-color: rgba(255, 255, 255, 0.2);
            color: white;
            transform: translateY(-3px);
        }
        .flink {
            font-weight: 600;
        }
        .copyright {
            border-top: 1px solid #495057;
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .section-padding {
                padding: 60px 0;
            }
            .stat-number {
                font-size: 2.5rem;
            }
            .navbar-brand {
                font-size: 1.5rem;
            }
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            text-decoration: none;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: var(--accent-color);
            transform: translateY(-5px);
        }
        .article-content {
            line-height: 1.8;
            font-size: 1.1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
        }
        .news-card {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        .news-img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .news-date {
            color: var(--secondary-color);
            font-size: 0.9rem;
        }