:root {
            --primary: #0a2463;
            --secondary: #d4af37;
            --accent: #3e92cc;
            --medical: #2b7bba;
            --light: #f8f9fa;
            --dark: #212529;
            --success: #28a745;
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            background-color: #f9fafb;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部和导航 */
        header {
            background-color: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            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;
        }
        
        .logo h1 {
            font-size: 1.8rem;
            color: var(--primary);
            font-weight: 700;
        }
        
        .logo span {
            color: var(--secondary);
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin: 0 15px;
            position: relative;
        }
        
        nav ul li a {
            font-weight: 600;
            color: var(--dark);
            transition: var(--transition);
            padding: 10px 0;
        }
        
        nav ul li a:hover {
            color: var(--secondary);
        }
        
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary);
            transition: var(--transition);
        }
        
        nav ul li a:hover::after {
            width: 100%;
        }
        
        .nav-contact {
            background-color: var(--primary);
            color: white;
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
        }
        
        .nav-contact:hover {
            background-color: var(--secondary);
            color: var(--dark);
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* 医疗器械英雄区域 */
        .medical-hero {
            background: linear-gradient(135deg, rgba(43, 123, 186, 0.9) 0%, rgba(10, 36, 99, 0.8) 100%), url('/jia/images/1.jpg') center/cover no-repeat;
            padding: 100px 0;
            color: white;
            text-align: center;
        }
        
        .medical-hero-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .medical-hero h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            animation: fadeInUp 1s ease;
        }
        
        .medical-hero p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            animation: fadeInUp 1.2s ease;
        }
        
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 50px;
            animation: fadeInUp 1.4s ease;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 5px;
        }
        
        .stat-label {
            font-size: 1rem;
            opacity: 0.9;
        }
        
        /* 医疗器械分类 */
        .medical-categories {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 2.2rem;
            color: var(--primary);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background-color: var(--secondary);
        }
        
        .category-tabs {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
        }
        
        .category-tab {
            padding: 12px 25px;
            background-color: white;
            border: 2px solid var(--medical);
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .category-tab.active, .category-tab:hover {
            background-color: var(--medical);
            color: white;
        }
        
        .category-content {
            display: none;
            animation: fadeIn 0.5s ease;
        }
        
        .category-content.active {
            display: block;
        }
        
        .medical-card {
            background-color: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            margin-bottom: 30px;
        }
        
        .medical-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .medical-card-header {
            padding: 25px;
            background: linear-gradient(135deg, var(--medical) 0%, #1a5c9a 100%);
            color: white;
            position: relative;
        }
        
        .medical-card-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
            color: var(--secondary);
        }
        
        .medical-card-header h3 {
            font-size: 1.6rem;
            margin-bottom: 10px;
        }
        
        .medical-card-body {
            padding: 25px;
        }
        
        .medical-card-body p {
            color: #666;
            margin-bottom: 20px;
        }
        
        .medical-features {
            list-style: none;
            margin-bottom: 20px;
        }
        
        .medical-features li {
            padding: 8px 0;
            display: flex;
            align-items: center;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .medical-features li:last-child {
            border-bottom: none;
        }
        
        .medical-features li i {
            color: var(--secondary);
            margin-right: 10px;
            font-size: 1.1rem;
        }
        
        .medical-card-footer {
            padding: 20px 25px 25px;
            border-top: 1px solid #eee;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .medical-price {
            font-weight: 700;
            color: var(--medical);
            font-size: 1.4rem;
        }
        
        /* 办理流程 */
        .process-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }
        
        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin: 60px 0;
        }
        
        /* 连接线 */
        .process-steps::before {
            content: '';
            position: absolute;
            top: 60px;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(to right, var(--medical), var(--secondary));
            z-index: 1;
        }
        
        .step {
            text-align: center;
            position: relative;
            z-index: 2;
            flex: 1;
        }
        
        .step-icon {
            width: 120px;
            height: 120px;
            background: white;
            border: 3px solid var(--medical);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 2.5rem;
            color: var(--medical);
            transition: var(--transition);
            box-shadow: 0 5px 20px rgba(43, 123, 186, 0.15);
        }
        
        .step:hover .step-icon {
            transform: translateY(-5px);
            background-color: var(--medical);
            color: white;
            border-color: var(--secondary);
        }
        
        .step-content {
            background: white;
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            margin-top: 10px;
        }
        
        .step:hover .step-content {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }
        
        .step-number {
            display: inline-block;
            width: 40px;
            height: 40px;
            background-color: var(--medical);
            color: white;
            border-radius: 50%;
            line-height: 40px;
            font-weight: bold;
            margin-bottom: 15px;
        }
        
        .step-content h3 {
            color: var(--medical);
            margin-bottom: 12px;
            font-size: 1.3rem;
        }
        
        .step-content p {
            color: #666;
            font-size: 0.95rem;
        }
        
        .step-duration {
            display: inline-block;
            margin-top: 12px;
            padding: 5px 12px;
            background-color: var(--secondary);
            color: var(--dark);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        
        /* 时间线箭头 */
        .step-arrow {
            position: absolute;
            top: 60px;
            right: -20px;
            width: 0;
            height: 0;
            border-top: 15px solid transparent;
            border-bottom: 15px solid transparent;
            border-left: 20px solid var(--medical);
            z-index: 2;
        }
        
        /* 所需材料 */
        .materials-section {
            padding: 80px 0;
        }
        
        .materials-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .material-card {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .material-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .material-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background-color: var(--medical);
        }
        
        .material-card h3 {
            color: var(--medical);
            margin-bottom: 20px;
            font-size: 1.4rem;
        }
        
        .material-list {
            list-style: none;
        }
        
        .material-list li {
            padding: 10px 0;
            display: flex;
            align-items: flex-start;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .material-list li:last-child {
            border-bottom: none;
        }
        
        .material-list li i {
            color: var(--secondary);
            margin-right: 10px;
            margin-top: 5px;
        }
        
        /* 优势部分 */
        .advantages-section {
            padding: 80px 0;
            background-color: var(--light);
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .advantage-card {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .advantage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .advantage-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(to right, var(--medical), var(--secondary));
        }
        
        .advantage-icon {
            font-size: 3rem;
            color: var(--medical);
            margin-bottom: 20px;
        }
        
        .advantage-card h3 {
            margin-bottom: 15px;
            color: var(--medical);
        }
        
        /* CTA区域 */
        .cta-section {
            text-align: center;
            padding: 80px 0;
            background: linear-gradient(135deg, var(--medical) 0%, #1a5c9a 100%);
            color: white;
        }
        
        .cta-section h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .cta-section p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }
        
        .btn {
            display: inline-block;
            padding: 15px 35px;
            background-color: var(--secondary);
            color: var(--dark);
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid var(--secondary);
            font-size: 1.1rem;
        }
        
        .btn:hover {
            background-color: transparent;
            color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
        }
        
        /* FAQ部分 */
        .faq-section {
            padding: 80px 0;
        }
        
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background-color: white;
            border-radius: 8px;
            margin-bottom: 15px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            overflow: hidden;
            transition: var(--transition);
        }
        
        .faq-item:hover {
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--medical);
        }
        
        .faq-question i {
            transition: var(--transition);
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-item.active .faq-answer {
            padding: 0 20px 20px;
            max-height: 500px;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        /* 底部 */
        footer {
            background-color: var(--primary);
            color: white;
            padding-top: 60px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--secondary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links li a {
            transition: var(--transition);
        }
        
        .footer-links li a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        
        .contact-info {
            list-style: none;
        }
        
        .contact-info li {
            margin-bottom: 15px;
            display: flex;
            align-items: flex-start;
        }
        
        .contact-info li i {
            margin-right: 10px;
            color: var(--secondary);
        }
        
        .wechat-qr {
            margin-top: 15px;
            text-align: center;
        }
        
        .wechat-qr img {
            max-width: 150px;
            border: 5px solid white;
            border-radius: 10px;
        }
        
        .footer-bottom {
            margin-top: 50px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .footer-bottom-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
        }
        
        .friend-links li {
            margin-right: 15px;
            margin-bottom: 10px;
            position: relative;
        }
        
        .friend-links li:not(:last-child)::after {
            content: '|';
            position: absolute;
            right: -10px;
            color: rgba(255, 255, 255, 0.3);
        }
        
        .friend-links li a {
            transition: var(--transition);
        }
        
        .friend-links li a:hover {
            color: var(--secondary);
        }
        
        .copyright {
            text-align: center;
            width: 100%;
            margin-top: 20px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        
        /* 动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            
            .process-steps::before {
                display: none;
            }
            
            .step {
                width: 100%;
                max-width: 400px;
                margin-bottom: 40px;
            }
            
            .step-arrow {
                display: none;
            }
            
            nav ul {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .medical-hero h2 {
                font-size: 2.2rem;
            }
            
            .hero-stats {
                flex-wrap: wrap;
            }
        }
        
        @media (max-width: 768px) {
            .medical-hero {
                padding: 70px 0;
            }
            
            .medical-hero h2 {
                font-size: 1.8rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .footer-bottom-content {
                flex-direction: column;
                text-align: center;
            }
            
            .friend-links {
                justify-content: center;
                margin-bottom: 20px;
            }
            
            .category-tabs {
                flex-direction: column;
                align-items: center;
            }
            
            .category-tab {
                width: 100%;
                text-align: center;
                margin-bottom: 10px;
            }
        }
        
        @media (max-width: 576px) {
            .logo h1 {
                font-size: 1.5rem;
            }
            
            .medical-hero h2 {
                font-size: 1.5rem;
            }
            
            .medical-hero p {
                font-size: 1rem;
            }
            
            .btn {
                padding: 12px 25px;
            }
            
            .stat-number {
                font-size: 2rem;
            }
        }