:root {
            --primary-color: #1a5fb4;
            --secondary-color: #e95420;
            --dark-color: #2c3e50;
            --light-color: #f8f9fa;
            --success-color: #38b44a;
            --border-radius: 8px;
            --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        body {
            font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--dark-color);
            margin-bottom: 1rem;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }
        .section-header:after {
            content: '';
            position: absolute;
            width: 60px;
            height: 3px;
            background: var(--secondary-color);
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
        }
        .section-padding {
            padding: 80px 0;
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 15px 0;
            transition: var(--transition);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .nav-link {
            font-weight: 600;
            color: var(--dark-color) !important;
            margin: 0 10px;
            position: relative;
        }
        .nav-link:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background: var(--secondary-color);
            bottom: 0;
            left: 0;
            transition: var(--transition);
        }
        .nav-link:hover:after,
        .nav-link.active:after {
            width: 100%;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--primary-color) !important;
        }
        .hero {
            background: linear-gradient(rgba(26, 95, 180, 0.85), rgba(44, 62, 80, 0.9)), url('https://images.unsplash.com/photo-1556056504-5c7696c4c28d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 150px 0 100px;
            text-align: center;
        }
        .hero h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        .hero p {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            opacity: 0.95;
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 30px;
            font-weight: 600;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .btn-primary:hover {
            background-color: #154b8c;
            border-color: #154b8c;
            transform: translateY(-3px);
            box-shadow: var(--box-shadow);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
            padding: 12px 30px;
            font-weight: 600;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .btn-secondary:hover {
            background-color: #c34113;
            border-color: #c34113;
            transform: translateY(-3px);
            box-shadow: var(--box-shadow);
        }
        .service-card, .feature-card {
            background: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 30px;
            height: 100%;
            transition: var(--transition);
            border: 1px solid #eee;
        }
        .service-card:hover, .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        .service-icon, .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), #2a7de1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: white;
            font-size: 1.8rem;
        }
        .feature-icon {
            background: linear-gradient(135deg, var(--secondary-color), #f16b3a);
        }
        .stats {
            background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(26, 95, 180, 0.9)), url('https://images.unsplash.com/photo-1517466787929-bc90951d0974?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            padding: 80px 0;
        }
        .stat-item {
            text-align: center;
        }
        .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 10px;
            color: white;
        }
        .stat-text {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        .friendlink {
            background-color: #f8f9fa;
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 10px 25px;
            margin: 8px;
            border-radius: 30px;
            color: var(--dark-color);
            text-decoration: none;
            font-weight: 500;
            border: 1px solid #e1e5eb;
            transition: var(--transition);
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-3px);
        }
        footer {
            background-color: var(--dark-color);
            color: #bbb;
            padding-top: 60px;
        }
        footer h5 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.2rem;
        }
        footer a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: white;
            text-decoration: underline;
        }
        .footer-bottom {
            background-color: rgba(0, 0, 0, 0.2);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            .section-padding {
                padding: 60px 0;
            }
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .section-header {
                margin-bottom: 2rem;
            }
            .stat-number {
                font-size: 2.8rem;
            }
        }
        @media (max-width: 576px) {
            .hero {
                padding: 120px 0 80px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
        }
        .fade-in {
            animation: fadeIn 1s ease-in-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f1f1;
        }
        ::-webkit-scrollbar-thumb {
            background: var(--primary-color);
            border-radius: 5px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #154b8c;
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .article-content h3 {
            margin-top: 2rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .article-content p {
            margin-bottom: 1.5rem;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
        .highlight-box {
            background-color: #f0f7ff;
            border-left: 4px solid var(--primary-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .content-img {
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            margin: 25px 0;
            max-width: 100%;
            height: auto;
        }
        .table-responsive {
            margin: 25px 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
        }
        .table {
            margin-bottom: 0;
        }
        .table thead th {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 15px;
        }
        .table tbody td {
            padding: 15px;
            vertical-align: middle;
        }
        .table-striped tbody tr:nth-of-type(odd) {
            background-color: rgba(26, 95, 180, 0.05);
        }