/* ---------- 全局变量 (完全复用case-item-28风格) ---------- */
        :root {
            --primary: #0A66C2;
            --primary-dark: #084B8A;
            --accent: #F5A623;
            --dark: #111827;
            --gray-dark: #1F2937;
            --gray: #6B7280;
            --gray-light: #F3F4F6;
            --white: #FFFFFF;
            --shadow-sm: 0 10px 25px -5px rgba(0,0,0,0.05);
            --shadow-md: 0 20px 40px -12px rgba(0,0,0,0.1);
            --shadow-lg: 0 25px 50px -12px rgba(0,0,0,0.25);
            --transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.5;
            color: var(--dark);
            background: var(--white);
            overflow-x: hidden;
        }
        .container {
            width: 90%;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul { list-style: none; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: white;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px -5px rgba(10,102,194,0.3);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 500;
            transition: var(--transition);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: white;
        }
        /* 头部固定导航 (与原风格一致) */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(17,24,39,0.9);
            backdrop-filter: blur(12px);
            z-index: 1000;
            padding: 18px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .site-header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo img { height: 44px; }
        .nav-menu {
            display: flex;
            gap: 40px;
        }
        .nav-menu a {
            font-weight: 500;
            color: rgba(255,255,255,0.8);
            letter-spacing: 0.3px;
        }
        .nav-menu a:hover, .nav-menu a.active {
            color: white;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
        }
        .mobile-toggle span {
            width: 26px;
            height: 2px;
            background: white;
        }
        /* 页面banner - 使用case-item-30原有背景图，与新能源风格统一但保留医疗氛围 */
        .page-hero {
            background: linear-gradient(135deg, rgba(10,102,194,0.85), rgba(8,75,138,0.9)), url('images/e7d52b0cfb6d1b259a07a75b7c1e9473.jpg') center/cover no-repeat;
            padding: 140px 0 80px;
            text-align: center;
            color: white;
            position: relative;
            margin-top: 0;
        }
        .page-hero h1 {
            font-size: 48px;
            margin-bottom: 16px;
            font-weight: 800;
        }
        .page-hero p {
            font-size: 18px;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto;
        }
        /* 面包屑 */
        .breadcrumb {
            padding: 20px 0 10px;
            font-size: 14px;
            color: var(--gray);
            background: white;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        /* 产品详情区域 */
        .product-detail-main {
            padding: 40px 0 60px;
        }
        .product-detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .product-gallery-main {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: #f9fafb;
        }
        .product-gallery-main img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.4s ease;
        }
        .product-gallery-main:hover img {
            transform: scale(1.01);
        }
        .product-info-right h1 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--dark);
            letter-spacing: -0.5px;
        }
        .product-subhead {
            font-size: 16px;
            color: var(--gray);
            line-height: 1.5;
            margin-bottom: 24px;
            border-left: 3px solid var(--primary);
            padding-left: 16px;
        }
        .product-params-spec {
            background: var(--gray-light);
            border-radius: 20px;
            padding: 20px 24px;
            margin: 24px 0;
        }
        .param-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .param-item {
            display: flex;
            justify-content: space-between;
            border-bottom: 1px dashed rgba(0,0,0,0.05);
            padding-bottom: 8px;
            margin-bottom: 8px;
        }
        .param-label {
            font-weight: 600;
            color: var(--dark);
        }
        .param-value {
            color: var(--primary);
            font-weight: 500;
        }
        .tech-desc {
            line-height: 1.7;
            color: var(--gray-dark);
            margin: 20px 0;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 32px;
            position: relative;
            display: inline-block;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .feature-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--gray-light);
            padding: 14px 20px;
            border-radius: 60px;
            transition: all 0.2s;
        }
        .feature-item i {
            font-size: 22px;
            color: var(--primary);
        }
        /* 相关案例网格 */
        .case-related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
            margin-top: 20px;
        }
        .related-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .related-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            transition: transform 0.3s;
        }
        .related-card:hover .related-img {
            transform: scale(1.02);
        }
        .related-content {
            padding: 20px;
        }
        .related-content h4 {
            font-size: 18px;
            margin-bottom: 10px;
            font-weight: 700;
        }
        .related-content p {
            font-size: 14px;
            color: var(--gray);
            margin-bottom: 12px;
        }
        .link-more {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links {
            display: flex;
            justify-content: space-between;
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid #e5e7eb;
        }
        .nav-links a {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s;
        }
        .nav-links a:hover {
            gap: 12px;
        }
        /* 表格样式 (技术规格) */
        .spec-table-wrapper {
            overflow-x: auto;
            margin: 30px 0;
        }
        .spec-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--gray-light);
            border-radius: 20px;
            overflow: hidden;
        }
        .spec-table th {
            background: var(--primary);
            color: white;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .spec-table td {
            padding: 12px 16px;
            border-bottom: 1px solid #e2e8f0;
        }
        /* 二维码区域 */
        .qr-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #F9FAFB 0%, #F3F4F6 100%);
        }
        .qr-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(10,102,194,0.1);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .qr-header h2 {
            font-size: 38px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .qr-header p {
            color: var(--gray);
            font-size: 18px;
        }
        .qr-cards {
            display: flex;
            justify-content: center;
            gap: 60px;
            flex-wrap: wrap;
        }
        .qr-card {
            background: white;
            border-radius: 24px;
            padding: 32px 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            min-width: 240px;
        }
        .qr-card:hover {
            transform: translateY(-8px);
        }
        .qr-img {
            width: 160px;
            height: 160px;
            margin: 0 auto 20px;
            background: #F3F4F6;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .qr-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .qr-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        /* 页脚 */
        .site-footer {
            background: var(--dark);
            color: #9CA3AF;
            padding: 70px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 50px;
            margin-bottom: 50px;
        }
        .footer-logo {
            height: 44px;
            margin-bottom: 20px;
        }
        .footer-brand p {
            line-height: 1.6;
        }
        .footer-links h4, .footer-contact h4 {
            color: white;
            font-size: 18px;
            margin-bottom: 24px;
        }
        .footer-links ul li, .footer-contact ul li {
            margin-bottom: 12px;
        }
        .footer-links a:hover, .footer-contact a:hover {
            color: white;
        }
        .footer-contact i {
            width: 28px;
            margin-right: 8px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #2D3748;
        }
        /* 响应式 */
        @media (max-width: 992px) {
            .product-detail-grid { grid-template-columns: 1fr; gap: 40px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
            .param-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .mobile-toggle { display: flex; }
            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: var(--dark);
                flex-direction: column;
                align-items: center;
                padding-top: 50px;
                transition: 0.3s;
            }
            .nav-menu.active { left: 0; }
            .page-hero { padding: 100px 0 50px; }
            .page-hero h1 { font-size: 32px; }
            .product-info-right h1 { font-size: 28px; }
            .btn-group { flex-direction: column; align-items: stretch; }
            .btn-primary, .btn-outline { justify-content: center; text-align: center; }
            .section-title { font-size: 24px; }
            .qr-header h2 { font-size: 28px; }
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-contact i { width: auto; margin-right: 5px; }
        }