:root {
            --primary-blue: #0A2463;
            --accent-green: #00B894;
            --light-blue: #E8F1FF;
            --light-gray: #F8F9FA;
            --medium-gray: #E9ECEF;
            --dark-gray: #6C757D;
            --darker-gray: #343A40;
            --white: #FFFFFF;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Noto Sans SC', sans-serif;
            line-height: 1.6;
            color: var(--darker-gray);
            background-color: var(--white);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部导航样式 */
        header {
            background-color: var(--white);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-blue), var(--accent-green));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: 700;
        }

        .logo-text h1 {
            color: var(--primary-blue);
            font-size: 24px;
            font-weight: 700;
        }

        .logo-text p {
            color: var(--dark-gray);
            font-size: 12px;
            margin-top: -5px;
        }

        .nav-links {
            display: flex;
            gap: 30px;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--darker-gray);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary-blue);
        }

        .nav-links a.active {
            color: var(--primary-blue);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary-blue);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn-login {
            background: none;
            border: 1px solid var(--medium-gray);
            padding: 8px 20px;
            border-radius: var(--border-radius);
            color: var(--darker-gray);
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-login:hover {
            background-color: var(--light-gray);
        }

        .btn-register {
            background-color: var(--primary-blue);
            border: none;
            padding: 8px 20px;
            border-radius: var(--border-radius);
            color: var(--white);
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-register:hover {
            background-color: #082048;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary-blue);
            cursor: pointer;
        }

        /* 主视觉区域样式 */
        .hero {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #1E4B8F 100%);
            color: var(--white);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background-image: url('https://images.unsplash.com/photo-1554224155-6726b3ff858f?ixlib=rb-4.0.3&auto=format&fit=crop&w=1000&q=80');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
        }

        .hero-content {
            max-width: 600px;
            position: relative;
            z-index: 1;
        }

        .hero h2 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .hero p {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        .search-box {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--shadow);
            margin-top: 30px;
        }

        .search-title {
            color: var(--primary-blue);
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .search-form {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group label {
            font-size: 14px;
            color: var(--dark-gray);
            margin-bottom: 5px;
        }

        .form-group select,
        .form-group input {
            padding: 12px 15px;
            border: 1px solid var(--medium-gray);
            border-radius: 4px;
            font-family: 'Noto Sans SC', sans-serif;
            font-size: 16px;
            background-color: var(--white);
        }

        .btn-search {
            background-color: var(--accent-green);
            color: var(--white);
            border: none;
            border-radius: 4px;
            padding: 12px 15px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-end;
        }

        .btn-search:hover {
            background-color: #00a085;
        }

        /* 首页预约申请：合规/协议文字样式（与 about 预约申请一致） */
        .hero-agreement {
            margin-top: 15px;
        }

        .hero-agreement .agreement-label {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            cursor: pointer;
        }

        .hero-agreement .agreement-label input {
            margin-top: 3px;
        }

        .hero-agreement .agreement-text {
            font-size: 13px;
            line-height: 1.4;
            color: var(--darker-gray);
        }

        .hero-agreement .agreement-text a {
            color: var(--primary-blue);
            text-decoration: underline;
        }

        /* 产品分类区域 */
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-blue);
            text-align: center;
            margin-bottom: 40px;
        }

        .products-section {
            padding: 80px 0;
            background-color: var(--light-gray);
        }

        .product-categories {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
        }

        .product-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            cursor: pointer;
        }

        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .product-icon {
            width: 70px;
            height: 70px;
            background-color: var(--light-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-blue);
            font-size: 28px;
        }

        .product-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-blue);
        }

        .product-card p {
            color: var(--dark-gray);
            font-size: 14px;
            margin-bottom: 15px;
        }

        .product-link {
            color: var(--accent-green);
            font-weight: 600;
            text-decoration: none;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 工具区域 */
        .tools-section {
            padding: 80px 0;
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
        }

        .tool-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .tool-card:hover {
            border-color: var(--accent-green);
            transform: translateY(-3px);
        }

        .tool-icon {
            width: 60px;
            height: 60px;
            background-color: var(--light-blue);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--primary-blue);
            font-size: 24px;
        }

        .tool-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-blue);
        }

        .tool-card p {
            color: var(--dark-gray);
            font-size: 14px;
            margin-bottom: 15px;
        }

        /* 最新资讯区域 */
        .latest-articles-section {
            padding: 80px 0;
            background-color: var(--white);
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 25px;
        }

        .article-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .article-card:hover {
            border-color: var(--accent-green);
            transform: translateY(-3px);
        }

        .article-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-blue);
            line-height: 1.4;
        }

        .article-title a {
            color: inherit;
            text-decoration: none;
        }

        .article-summary {
            color: var(--dark-gray);
            font-size: 14px;
            margin-bottom: 14px;
            line-height: 1.6;
        }

        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            color: var(--dark-gray);
            font-size: 13px;
        }

        .article-category {
            background-color: var(--light-blue);
            color: var(--primary-blue);
            padding: 4px 10px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .loading,
        .empty,
        .error {
            text-align: center;
            color: var(--dark-gray);
            padding: 20px 0;
        }

        /* 合作机构区域 */
        .partners-section {
            padding: 80px 0;
            background-color: var(--light-gray);
        }

        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 30px;
            align-items: center;
        }

        .partner-logo {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .partner-logo:hover {
            transform: scale(1.05);
        }

        .partner-logo img {
            max-width: 100%;
            max-height: 60px;
            filter: grayscale(100%);
            opacity: 0.7;
            transition: var(--transition);
        }

        .partner-logo:hover img {
            filter: grayscale(0%);
            opacity: 1;
        }

        /* 用户评价区域 */
        .testimonials-section {
            padding: 80px 0;
        }

        .testimonials-slider {
            display: flex;
            gap: 30px;
            overflow-x: auto;
            padding: 20px 0;
            scrollbar-width: thin;
        }

        .testimonials-slider::-webkit-scrollbar {
            height: 6px;
        }

        .testimonials-slider::-webkit-scrollbar-track {
            background: var(--light-gray);
            border-radius: 10px;
        }

        .testimonials-slider::-webkit-scrollbar-thumb {
            background: var(--accent-green);
            border-radius: 10px;
        }

        .testimonial-card {
            flex: 0 0 350px;
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
        }

        .testimonial-header {
            display: flex;
            align-items: center;
            margin-bottom: 20px;
        }

        .user-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: var(--light-blue);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary-blue);
            margin-right: 15px;
        }

        .user-info h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 5px;
        }

        .user-info p {
            color: var(--dark-gray);
            font-size: 14px;
        }

        .rating {
            color: #FFC107;
            margin-bottom: 15px;
        }

        .testimonial-text {
            color: var(--darker-gray);
            font-style: italic;
            line-height: 1.7;
        }

        /* 底部样式 */
        footer {
            background-color: var(--primary-blue);
            color: var(--white);
            padding: 60px 0 30px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-column h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--white);
        }

        .footer-column ul {
            list-style: none;
        }

        .footer-column ul li {
            margin-bottom: 12px;
        }

        .footer-column ul li a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-column ul li a:hover {
            color: var(--white);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-disclaimer {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
        }

        .social-links {
            display: flex;
            gap: 15px;
        }

        .social-links a {
            color: var(--white);
            background-color: rgba(255, 255, 255, 0.1);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            transition: var(--transition);
        }

        .social-links a:hover {
            background-color: var(--accent-green);
            transform: translateY(-3px);
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .nav-links {
                gap: 20px;
            }
            
            .hero h2 {
                font-size: 36px;
            }
            
            .testimonial-card {
                flex: 0 0 300px;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
                z-index: 100;
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .hero h2 {
                font-size: 32px;
            }
            
            .search-form {
                grid-template-columns: 1fr;
            }
            
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 576px) {
            .hero {
                padding: 60px 0;
            }
            
            .hero h2 {
                font-size: 28px;
            }
            
            .section-title {
                font-size: 24px;
            }
            
            .products-section,
            .tools-section,
            .partners-section,
            .testimonials-section {
                padding: 60px 0;
            }
            
            .product-categories,
            .tools-grid,
            .articles-grid {
                grid-template-columns: 1fr;
            }
        }