/* roulang page: index */
:root {
            --primary: #D32F2F;
            --primary-dark: #9A0007;
            --primary-light: #FF6659;
            --secondary: #37474F;
            --accent: #FFB300;
            --dark: #12181F;
            --dark-surface: #1E2630;
            --light-bg: #F4F6F8;
            --white: #FFFFFF;
            --text-main: #101828;
            --text-muted: #475467;
            --text-light: #98A2B3;
            --border-color: #E4E7EC;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 6px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 18px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.1);
            --transition: all 0.25s ease-in-out;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            -webkit-tap-highlight-color: transparent;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            color: var(--text-main);
            background-color: var(--white);
            line-height: 1.75;
            overflow-x: hidden;
        }

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

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

        ul {
            list-style: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部双行导航 */
        .top-bar {
            background-color: var(--dark);
            color: var(--text-light);
            font-size: 0.875rem;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

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

        .top-bar-left span {
            margin-right: 20px;
        }

        .top-bar-right a {
            color: var(--accent);
            font-weight: 600;
        }

        .header-main {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .nav-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

        .logo-badge {
            background: var(--primary);
            color: var(--white);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            gap: 32px;
            align-items: center;
        }

        .nav-links a {
            font-weight: 600;
            color: var(--text-muted);
            font-size: 1rem;
            position: relative;
            padding: 8px 0;
        }

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

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

        .nav-cta-btn {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--white);
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(211, 47, 47, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(211, 47, 47, 0.35);
            color: var(--white);
        }

        /* 按钮与通用组件 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            gap: 8px;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 14px rgba(211, 47, 47, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(211, 47, 47, 0.4);
            color: var(--white);
        }

        .btn-secondary {
            background-color: var(--white);
            color: var(--text-main);
            border-color: var(--border-color);
        }

        .btn-secondary:hover {
            background-color: var(--light-bg);
            border-color: var(--text-light);
            transform: translateY(-2px);
        }

        .btn-accent {
            background-color: var(--accent);
            color: var(--dark);
            font-weight: 700;
        }

        .btn-accent:hover {
            background-color: #FFA000;
            transform: translateY(-2px);
        }

        .section-header {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 56px auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--primary);
            background: rgba(211, 47, 47, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1.0625rem;
            line-height: 1.8;
        }

        .dark-section {
            background-color: var(--dark);
            color: var(--white);
        }

        .dark-section .section-title {
            color: var(--white);
        }

        .dark-section .section-desc {
            color: var(--text-light);
        }

        .gray-section {
            background-color: var(--light-bg);
        }

        section {
            padding: 90px 0;
            position: relative;
        }

        /* 1. Hero 区域（拼团/联采协同机制架构） */
        .hero-section {
            position: relative;
            background: linear-gradient(rgba(18, 24, 31, 0.88), rgba(18, 24, 31, 0.94)), url('/assets/images/2bd2aa9512059f7c.webp') center/cover no-repeat;
            color: var(--white);
            padding: 100px 0 110px 0;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-content h1 span {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 1.125rem;
            color: #CFD8DC;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .group-status-box {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .group-status-item {
            display: flex;
            flex-direction: column;
        }

        .group-status-val {
            font-size: 1.625rem;
            font-weight: 800;
            color: var(--accent);
        }

        .group-status-lbl {
            font-size: 0.8125rem;
            color: var(--text-light);
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-card {
            background: rgba(30, 38, 48, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }

        .hero-card h3 {
            font-size: 1.35rem;
            margin-bottom: 12px;
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .hero-card-badge {
            font-size: 0.75rem;
            padding: 3px 8px;
            background: var(--primary);
            border-radius: 4px;
        }

        .spec-list {
            margin: 20px 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .spec-item {
            display: flex;
            justify-content: space-between;
            font-size: 0.9375rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            padding-bottom: 8px;
        }

        .spec-item span:first-child {
            color: var(--text-light);
        }

        .spec-item span:last-child {
            font-weight: 600;
            color: var(--white);
        }

        /* 2. 品牌故事区 */
        .story-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .story-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .story-img-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .story-badge {
            position: absolute;
            bottom: 24px;
            right: 24px;
            background: rgba(18, 24, 31, 0.92);
            color: var(--white);
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--primary);
        }

        .story-badge-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
        }

        .story-content h2 {
            font-size: 2.125rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .story-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .story-point-item {
            border-top: 2px solid var(--border-color);
            padding-top: 14px;
        }

        .story-point-title {
            font-weight: 700;
            font-size: 1.0625rem;
            margin-bottom: 6px;
            color: var(--primary-dark);
        }

        .story-point-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        /* 3. 系列导航 */
        .series-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .series-tab-item {
            padding: 12px 24px;
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-weight: 600;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
        }

        .series-tab-item:hover, .series-tab-item.active {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(211, 47, 47, 0.2);
        }

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

        .series-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .series-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }

        .series-icon {
            width: 48px;
            height: 48px;
            background: rgba(211, 47, 47, 0.1);
            color: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .series-card h4 {
            font-size: 1.1875rem;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .series-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .series-link {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 4. 爆款网格区 */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(211, 47, 47, 0.4);
        }

        .product-img {
            height: 240px;
            overflow: hidden;
            position: relative;
        }

        .product-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .product-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
        }

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

        .product-title {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .product-desc {
            font-size: 0.9375rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .product-specs {
            background: var(--light-bg);
            border-radius: var(--radius-md);
            padding: 14px;
            margin-bottom: 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            font-size: 0.8125rem;
        }

        .product-spec-val {
            font-weight: 700;
            color: var(--text-main);
            display: block;
        }

        .product-spec-lbl {
            color: var(--text-light);
        }

        /* 5. 技术优势六大矩阵 */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .tech-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            transition: var(--transition);
        }

        .tech-card:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .tech-num {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 12px;
            font-family: monospace;
        }

        .tech-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
        }

        .tech-desc {
            font-size: 0.9375rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* 6. 会员与联采协同权益 */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .benefit-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 36px 28px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .benefit-card.featured {
            border: 2px solid var(--primary);
            box-shadow: 0 12px 30px rgba(211, 47, 47, 0.12);
        }

        .featured-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 20px;
        }

        .benefit-level {
            font-size: 1.35rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .benefit-target {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .benefit-list {
            text-align: left;
            margin-bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .benefit-list li {
            font-size: 0.9375rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .benefit-list li::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }

        /* 7. 实战演练与恶劣场景 */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .scenario-item {
            background: var(--dark-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            flex-direction: column;
        }

        .scenario-img {
            height: 260px;
            overflow: hidden;
        }

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

        .scenario-content {
            padding: 28px;
        }

        .scenario-content h3 {
            font-size: 1.35rem;
            color: var(--white);
            margin-bottom: 12px;
        }

        .scenario-content p {
            color: var(--text-light);
            font-size: 0.9375rem;
            line-height: 1.7;
        }

        /* 8. 严苛实战对比 */
        .compare-table-wrap {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow-x: auto;
            box-shadow: var(--shadow-sm);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }

        .compare-table th, .compare-table td {
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9375rem;
        }

        .compare-table th {
            background: var(--light-bg);
            font-weight: 700;
            color: var(--text-main);
        }

        .compare-table th:nth-child(2) {
            background: rgba(211, 47, 47, 0.06);
            color: var(--primary);
        }

        .compare-table td:nth-child(2) {
            background: rgba(211, 47, 47, 0.02);
            font-weight: 600;
            color: var(--primary-dark);
        }

        /* 9. 标杆客户案例故事 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .case-img {
            height: 220px;
            overflow: hidden;
        }

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

        .case-body {
            padding: 28px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .case-badge {
            display: inline-block;
            align-self: flex-start;
            background: rgba(211, 47, 47, 0.1);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
        }

        .case-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .case-text {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .case-meta {
            font-size: 0.8125rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }

        /* 10. 战备效能关键数据统计条 */
        .stats-section {
            background: linear-gradient(135deg, var(--dark) 0%, #1a232c 100%);
            color: var(--white);
            padding: 60px 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

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

        .stat-item {
            padding: 10px 16px;
        }

        .stat-num {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
            font-family: monospace;
        }

        .stat-lbl {
            font-size: 0.9375rem;
            color: var(--text-light);
        }

        /* 11. 资讯动态摘要 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .news-img {
            height: 200px;
            overflow: hidden;
        }

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

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

        .news-date {
            font-size: 0.8125rem;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .news-excerpt {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        /* 12. 保障承诺与权威背书条 */
        .guarantee-bar {
            background: var(--white);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0;
        }

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

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .guarantee-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(211, 47, 47, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            flex-shrink: 0;
        }

        .guarantee-title {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 2px;
        }

        .guarantee-desc {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 13. 指挥官实战口碑评价 */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-quote {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-stars {
            color: var(--accent);
            font-size: 1rem;
            margin-bottom: 12px;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--secondary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.875rem;
        }

        .review-name {
            font-weight: 700;
            font-size: 0.9375rem;
        }

        .review-role {
            font-size: 0.8125rem;
            color: var(--text-light);
        }

        /* 14. 进店选型与定制方案收口行动区 */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: var(--white);
            padding: 80px 0;
            text-align: center;
        }

        .cta-box {
            max-width: 780px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 36px;
            line-height: 1.8;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 580px;
            margin: 0 auto 20px auto;
        }

        .cta-input {
            flex-grow: 1;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            border: none;
            font-size: 1rem;
            outline: none;
        }

        .cta-btn {
            background: var(--dark);
            color: var(--white);
            padding: 16px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            white-space: nowrap;
        }

        .cta-btn:hover {
            background: #000;
            transform: translateY(-2px);
        }

        .cta-note {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* 标准化工业页脚 */
        .footer {
            background-color: var(--dark);
            color: var(--text-light);
            padding: 70px 0 30px 0;
            font-size: 0.9375rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .footer-brand h3 {
            color: var(--white);
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand p {
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 1.0625rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact li {
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 底部常驻悬浮转化条 */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(18, 24, 31, 0.95);
            backdrop-filter: blur(8px);
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 12px 0;
            z-index: 999;
            box-shadow: 0 -4px 16px rgba(0,0,0,0.15);
        }

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

        .fixed-cta-info {
            display: flex;
            align-items: center;
            gap: 20px;
            color: var(--white);
        }

        .fixed-cta-phone {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--accent);
        }

        .fixed-cta-actions {
            display: flex;
            gap: 12px;
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .series-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .product-grid, .tech-grid, .benefits-grid, .news-grid, .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 60px 0;
            }
            .top-bar {
                display: none;
            }
            .nav-links {
                display: none;
            }
            .hero-content h1 {
                font-size: 2.125rem;
            }
            .story-grid, .scenario-grid, .case-grid {
                grid-template-columns: 1fr;
            }
            .product-grid, .tech-grid, .benefits-grid, .news-grid, .review-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-form {
                flex-direction: column;
            }
            .fixed-cta-info {
                display: none;
            }
            .fixed-cta-actions {
                width: 100%;
                justify-content: space-between;
            }
            .fixed-cta-actions .btn {
                flex: 1;
            }
        }