/* roulang page: index */
:root {
            --primary: #0F5B46;
            --primary-light: #167A5E;
            --primary-dark: #0B2B24;
            --accent-mint: #52B788;
            --accent-amber: #D48B38;
            --bg-base: #F7F9F8;
            --bg-card: #FCFDFD;
            --text-main: #243230;
            --text-muted: #5A6E6A;
            --border-color: #DEE6E2;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-soft: 0 4px 20px rgba(15, 91, 70, 0.06);
            --shadow-hover: 0 10px 30px rgba(15, 91, 70, 0.12);
            --transition: all 0.28s ease;
        }

        body.high-contrast {
            --bg-base: #FFFFFF;
            --text-main: #000000;
            --text-muted: #1A1A1A;
            --border-color: #000000;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select {
            font: inherit;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部公用栏 */
        .utility-bar {
            background-color: #09221C;
            color: #C1D4CD;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .utility-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .utility-left {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .utility-right {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .contrast-toggle-btn {
            background: transparent;
            border: 1px solid #486E64;
            color: #C1D4CD;
            padding: 2px 10px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
        }

        .contrast-toggle-btn:hover {
            color: #FFF;
            border-color: var(--accent-mint);
        }

        /* 主导航条 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(252, 253, 253, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
        }

        .nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .brand-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #FFF;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
        }

        .main-menu {
            display: flex;
            list-style: none;
            gap: 28px;
            align-items: center;
        }

        .main-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 6px 0;
            position: relative;
        }

        .main-menu a:hover {
            color: var(--primary);
        }

        .nav-cta-btn {
            background: var(--primary);
            color: #FFF !important;
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(15, 91, 70, 0.2);
            transition: var(--transition);
        }

        .nav-cta-btn:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-main);
            margin: 5px 0;
            transition: var(--transition);
        }

        /* 移动端菜单抽屉 */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 110px;
            left: 0;
            width: 100%;
            background: #FFF;
            border-bottom: 2px solid var(--primary);
            box-shadow: 0 16px 24px rgba(0,0,0,0.08);
            padding: 24px;
            z-index: 99;
        }

        .mobile-drawer.active {
            display: block;
        }

        .mobile-nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .mobile-nav-list a {
            font-size: 16px;
            font-weight: 600;
            display: block;
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* 通用板块与排版 */
        .section-padding {
            padding: 90px 0;
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 56px auto;
        }

        .section-tag {
            display: inline-block;
            background: rgba(15, 91, 70, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* 按钮与徽章 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            min-height: 48px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 16px rgba(15, 91, 70, 0.25);
        }

        .btn-primary:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--primary);
            border: 1.5px solid var(--border-color);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            background-color: #F1F6F4;
        }

        .badge-amber {
            background-color: #FEF3E6;
            color: var(--accent-amber);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid #FADCB8;
        }

        /* 1. Hero 区域：深色信息面板 + 数据榜单 */
        .hero-section {
            background: linear-gradient(145deg, #09221C 0%, #0F3D31 60%, #144A3D 100%);
            color: #FFFFFF;
            padding: 80px 0 100px 0;
            position: relative;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 22px;
            letter-spacing: -0.5px;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.8;
            color: #D4E3DE;
            margin-bottom: 32px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .hero-cert-badges {
            display: flex;
            gap: 24px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        .cert-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #A3C5BA;
        }

        .cert-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent-mint);
        }

        .hero-card-panel {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
        }

        .faux-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .faux-header h3 {
            font-size: 17px;
            font-weight: 600;
            color: #FFFFFF;
        }

        .live-tag {
            background: rgba(82, 183, 136, 0.2);
            color: #52B788;
            font-size: 12px;
            padding: 2px 10px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .pulse-indicator {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #52B788;
            box-shadow: 0 0 8px #52B788;
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .rank-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: rgba(255, 255, 255, 0.04);
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .rank-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(82, 183, 136, 0.4);
        }

        .rank-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .rank-idx {
            width: 24px;
            height: 24px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: #FFF;
        }

        .rank-item:nth-child(1) .rank-idx {
            background: var(--accent-amber);
            color: #09221C;
        }

        .rank-name {
            font-size: 14px;
            font-weight: 500;
        }

        .rank-meta {
            font-size: 12px;
            color: #A3C5BA;
        }

        .rank-status {
            text-align: right;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-mint);
        }

        /* 2. 搜索与精准选型入口 */
        .filter-section {
            background: #FFFFFF;
            padding: 36px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .filter-bar-wrapper {
            background: var(--bg-base);
            border-radius: var(--radius-md);
            padding: 16px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            border: 1px solid var(--border-color);
        }

        .filter-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-right: 4px;
        }

        .filter-chip {
            padding: 8px 16px;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
        }

        .filter-chip:hover, .filter-chip.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        .filter-search-box {
            display: flex;
            gap: 8px;
            min-width: 280px;
        }

        .filter-input {
            width: 100%;
            padding: 10px 16px;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 14px;
            outline: none;
            background: #FFFFFF;
        }

        .filter-input:focus {
            border-color: var(--primary);
        }

        /* 3. 核心产品矩阵 */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .product-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(15, 91, 70, 0.3);
        }

        .card-img-wrap {
            height: 220px;
            overflow: hidden;
            position: relative;
            background: #EEF3F0;
        }

        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .product-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .card-type-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 91, 70, 0.85);
            color: #FFFFFF;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 500;
        }

        .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .card-model {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
            font-family: monospace;
        }

        .card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .card-specs {
            background: #F4F7F5;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            margin-bottom: 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .spec-row {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
        }

        .spec-k {
            color: var(--text-muted);
        }

        .spec-v {
            font-weight: 600;
            color: var(--primary);
        }

        /* 4. 品牌与产品综述 */
        .overview-section {
            background: #FFFFFF;
        }

        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .overview-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
        }

        .overview-media img {
            width: 100%;
            height: 440px;
            object-fit: cover;
        }

        .overview-media-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(9, 34, 28, 0.9) 0%, transparent 100%);
            padding: 24px;
            color: #FFFFFF;
        }

        .overview-media-caption h4 {
            font-size: 16px;
            margin-bottom: 4px;
        }

        .overview-media-caption p {
            font-size: 13px;
            color: #D4E3DE;
        }

        .overview-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 28px;
        }

        .overview-list-item {
            display: flex;
            gap: 16px;
        }

        .overview-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: #E8F3EE;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
            flex-shrink: 0;
        }

        .overview-text h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .overview-text p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 5. 核心技术优势（六维守护） */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
        }

        .feature-card:hover {
            border-color: var(--accent-mint);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .feature-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-mint);
            margin-bottom: 12px;
            display: block;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 6. 深色对比区：临床精度与专业理念 */
        .dark-tech-section {
            background-color: var(--primary-dark);
            color: #FFFFFF;
        }

        .dark-tech-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .dark-tech-content h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.35;
        }

        .dark-tech-content p {
            font-size: 15px;
            color: #C1D4CD;
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .precision-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .precision-table th, .precision-table td {
            padding: 14px 16px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .precision-table th {
            color: #52B788;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.03);
        }

        .precision-table td {
            color: #E2ECE8;
        }

        /* 7. 适老化流程应用 */
        .steps-wrapper {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            position: relative;
        }

        .step-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            position: relative;
            box-shadow: var(--shadow-soft);
        }

        .step-badge {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 8. 真实家庭康护故事 */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .story-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            box-shadow: var(--shadow-soft);
        }

        .story-img {
            width: 40%;
            min-height: 240px;
        }

        .story-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .story-body {
            width: 60%;
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .story-quote {
            font-size: 15px;
            font-style: normal;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .story-author {
            display: flex;
            flex-direction: column;
        }

        .author-name {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
        }

        .author-tag {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 9. 关键指标统计条 */
        .stats-section {
            background: #EBF3F0;
            padding: 60px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 16px;
        }

        .stat-val {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }

        .stat-unit {
            font-size: 18px;
            font-weight: 600;
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* 10. 用户口碑评价墙 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }

        .review-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-soft);
        }

        .review-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 14px;
        }

        .review-stars {
            color: #F5A623;
            letter-spacing: 2px;
            font-size: 14px;
        }

        .verified-badge {
            font-size: 11px;
            background: #E8F5E9;
            color: #2E7D32;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .reviewer-meta {
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 10px;
        }

        /* 11. 家庭健康资讯与选型指南 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .article-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

        .article-img-wrap {
            height: 180px;
            overflow: hidden;
        }

        .article-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-body {
            padding: 20px;
        }

        .article-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: block;
        }

        .article-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .article-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .article-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 12. 常见问题手风琴 */
        .faq-grid {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-toggle-icon {
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.25s ease;
        }

        .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: block;
        }

        .faq-item.closed .faq-answer {
            display: none;
        }

        .faq-item.closed .faq-toggle-icon {
            transform: rotate(-90deg);
        }

        /* 13. 底部咨询与服务保障 */
        .cta-box {
            background: linear-gradient(135deg, #EBF3F0 0%, #DFECE7 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow-soft);
        }

        .cta-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-info h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 14px;
        }

        .cta-info p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .service-guarantees {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .guarantee-check {
            width: 20px;
            height: 20px;
            background: var(--primary);
            color: #FFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
        }

        .cta-form {
            background: #FFFFFF;
            padding: 30px;
            border-radius: var(--radius-md);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 11px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            background: var(--bg-base);
            outline: none;
        }

        .form-control:focus {
            border-color: var(--primary);
            background: #FFFFFF;
        }

        .privacy-hint {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 12px;
            text-align: center;
        }

        /* 页脚区域 */
        .site-footer {
            background: #0B2B24;
            color: #A3C5BA;
            padding: 70px 0 30px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: #8CAEA3;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a:hover {
            color: #FFFFFF;
            padding-left: 4px;
        }

        .footer-contact-info p {
            margin-bottom: 8px;
            font-size: 13px;
        }

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #72968B;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-compliance {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 响应式断点控制 */
        @media (max-width: 1024px) {
            .hero-grid,
            .overview-grid,
            .dark-tech-grid,
            .cta-content-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .products-grid,
            .features-grid,
            .reviews-grid,
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .top-utility-bar {
                display: none;
            }
            .nav-menu, .nav-cta-btn {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .products-grid,
            .features-grid,
            .steps-wrapper,
            .stories-grid,
            .reviews-grid,
            .articles-grid,
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .story-card {
                flex-direction: column;
            }
            .story-img {
                width: 100%;
                height: 200px;
            }
            .story-body {
                width: 100%;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .section-title {
                font-size: 25px;
            }
            .section-padding {
                padding: 60px 0;
            }
            .filter-bar-wrapper {
                flex-direction: column;
                align-items: stretch;
            }
            .service-guarantees {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }