:root {
            --primary-color: #1a5fb4;
            --secondary-color: #ff6b35;
            --dark-color: #1e3a8a;
            --light-color: #f8f9fa;
            --text-color: #333;
            --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: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            color: var(--dark-color);
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-brand span {
            color: var(--secondary-color);
        }
        .hero-section {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
            color: white;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB4PSIwIiB5PSIwIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHBhdHRlcm5UcmFuc2Zvcm09InJvdGF0ZSg0NSkiPjxyZWN0IHg9IjAiIHk9IjAiIHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0icmdiYSgyNTUsMjU1LDI1NSwwLjA1KSI+PC9yZWN0PjwvcGF0dGVybj48L2RlZnM+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsbD0idXJsKCNwYXR0ZXJuKSI+PC9yZWN0Pjwvc3ZnPg==');
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 50px;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background: var(--secondary-color);
            border-radius: 2px;
        }
        .section-title.text-center::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .feature-card {
            background: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--box-shadow);
            height: 100%;
            transition: var(--transition);
            border: 1px solid rgba(0,0,0,0.05);
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), var(--dark-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: white;
            font-size: 1.8rem;
        }
        .service-box {
            background: white;
            border-radius: var(--border-radius);
            padding: 40px 30px;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
            text-align: center;
            border: 1px solid rgba(0,0,0,0.05);
        }
        .service-box:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.12);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .news-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            height: 100%;
            border: 1px solid rgba(0,0,0,0.05);
        }
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .news-img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .news-content {
            padding: 25px;
        }
        .news-date {
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 10px;
        }
        .stats-box {
            background: white;
            border-radius: var(--border-radius);
            padding: 30px;
            text-align: center;
            box-shadow: var(--box-shadow);
            border: 1px solid rgba(0,0,0,0.05);
        }
        .stats-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
            margin-bottom: 10px;
        }
        .stats-label {
            font-size: 1.1rem;
            color: #666;
        }
        .team-member {
            text-align: center;
            margin-bottom: 30px;
        }
        .team-img {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 20px;
            border: 5px solid var(--light-color);
            box-shadow: var(--box-shadow);
        }
        .contact-info-box {
            background: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--box-shadow);
            height: 100%;
            border: 1px solid rgba(0,0,0,0.05);
        }
        .contact-icon {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .friendlink {
            background: var(--light-color);
            padding: 60px 0;
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 10px 25px;
            margin: 0 10px 15px 0;
            border-radius: 50px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            transition: var(--transition);
            color: var(--text-color);
            text-decoration: none;
            font-weight: 500;
            border: 1px solid rgba(0,0,0,0.05);
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background: var(--dark-color);
            color: white;
            padding: 70px 0 30px;
        }
        footer a {
            color: rgba(255,255,255,0.8);
            text-decoration: none;
            transition: var(--transition);
        }
        footer a:hover {
            color: white;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            margin-top: 50px;
        }
        .btn-primary {
            background: var(--primary-color);
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--dark-color);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .btn-secondary {
            background: var(--secondary-color);
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
            color: white;
        }
        .btn-secondary:hover {
            background: #e55a2b;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            color: white;
        }
        .nav-link {
            font-weight: 600;
            margin: 0 5px;
            color: var(--text-color) !important;
            transition: var(--transition);
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        .navbar {
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            padding: 20px 0;
            transition: var(--transition);
        }
        .navbar.scrolled {
            padding: 10px 0;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(10px);
        }
        @media (max-width: 992px) {
            .hero-section {
                padding: 80px 0;
            }
            .hero-section h1 {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            .section-title {
                margin-bottom: 30px;
            }
            .feature-card, .service-box, .contact-info-box {
                padding: 20px;
            }
            .stats-number {
                font-size: 2.5rem;
            }
        }
        .content-section {
            padding: 100px 0;
        }
        .content-section:nth-child(even) {
            background: var(--light-color);
        }
        .tab-content {
            background: white;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            padding: 30px;
            box-shadow: var(--box-shadow);
            border: 1px solid rgba(0,0,0,0.05);
        }
        .nav-tabs {
            border-bottom: none;
        }
        .nav-tabs .nav-link {
            border: none;
            border-radius: var(--border-radius) var(--border-radius) 0 0;
            padding: 15px 30px;
            font-weight: 600;
            color: var(--text-color);
            background: rgba(0,0,0,0.03);
            margin-right: 5px;
        }
        .nav-tabs .nav-link.active {
            background: white;
            color: var(--primary-color);
            box-shadow: 0 -5px 15px rgba(0,0,0,0.05);
        }
        .timeline {
            position: relative;
            padding-left: 30px;
            margin-left: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary-color);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -36px;
            top: 5px;
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: var(--primary-color);
            border: 3px solid white;
            box-shadow: 0 0 0 3px var(--primary-color);
        }
        .accordion-button {
            font-weight: 600;
            padding: 20px;
            font-size: 1.1rem;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(26, 95, 180, 0.05);
            color: var(--primary-color);
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 0.25rem rgba(26, 95, 180, 0.25);
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(26, 95, 180, 0.25);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 1.5rem;
            z-index: 1000;
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background: var(--dark-color);
            color: white;
            transform: translateY(-5px);
        }
        .hero-stats {
            background: rgba(255,255,255,0.15);
            border-radius: var(--border-radius);
            padding: 20px;
            margin-top: 40px;
            backdrop-filter: blur(10px);
        }
        .hero-stat-item {
            text-align: center;
            padding: 15px;
        }
        .hero-stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 5px;
        }
        .hero-stat-label {
            font-size: 0.9rem;
            opacity: 0.9;
        }