/* roulang page: index */
:root {
            --primary: #F95721;
            --primary-hover: #e04612;
            --primary-light: #fff3ee;
            --secondary: #1E293B;
            --dark-bg: #0F172A;
            --dark-card: #1E293B;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --bg-main: #FFFFFF;
            --bg-alt: #F8FAFC;
            --border-color: #E2E8F0;
            --border-dark: #334155;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --container-max: 1240px;
        }

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

        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(--bg-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
        }

        .top-bar {
            background-color: var(--secondary);
            color: #E2E8F0;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

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

        .top-bar-badge {
            background: rgba(249, 87, 33, 0.2);
            color: #FF8A65;
            padding: 2px 8px;
            border-radius: 4px;
            border: 1px solid rgba(249, 87, 33, 0.3);
            font-size: 12px;
        }

        .main-nav {
            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: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 900;
        }

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

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 6px 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: var(--primary);
            border-radius: 2px;
        }

        .nav-cta-btn {
            background: var(--primary);
            color: #ffffff;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease, transform 0.2s ease;
        }

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

        /* 统一 Section 样式 */
        .section-block {
            padding: 80px 0;
            position: relative;
        }

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

        .section-dark {
            background-color: var(--dark-bg);
            color: #ffffff;
        }

        .section-header {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 50px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-dark .section-header h2 {
            color: #ffffff;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

        .badge-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            border: 1px solid rgba(249, 87, 33, 0.15);
        }

        .badge-tag-dark {
            background: rgba(249, 87, 33, 0.15);
            color: #FF8A65;
            border-color: rgba(249, 87, 33, 0.3);
        }

        /* 1. Hero 区域 (试用申请 + 权益) */
        .hero-section {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%), url('/assets/images/c95aabdce70e18a3.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            color: #ffffff;
            padding: 90px 0 80px;
            position: relative;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

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

        .hero-content p {
            font-size: 16px;
            color: #CBD5E1;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-features-list {
            display: flex;
            gap: 20px;
            margin-bottom: 35px;
            flex-wrap: wrap;
        }

        .hero-feat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 14px;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .hero-feat-item strong {
            color: var(--primary);
        }

        .hero-apply-box {
            background: #ffffff;
            color: var(--text-main);
            padding: 36px;
            border-radius: var(--radius-xl);
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
            border: 1px solid rgba(255,255,255,0.2);
        }

        .hero-apply-box h3 {
            font-size: 22px;
            margin-bottom: 8px;
            color: var(--secondary);
        }

        .hero-apply-box p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

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

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

        .hero-form-group input,
        .hero-form-group select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 14px;
            background-color: #F8FAFC;
        }

        .hero-form-group input:focus,
        .hero-form-group select:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #ffffff;
        }

        .hero-submit-btn {
            width: 100%;
            background: var(--primary);
            color: #ffffff;
            border: none;
            padding: 14px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: background 0.2s;
        }

        .hero-submit-btn:hover {
            background: var(--primary-hover);
        }

        /* 2. 品牌与硬件资质 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

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

        .intro-image-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .intro-info-card {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: rgba(15, 23, 42, 0.9);
            color: #ffffff;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.1);
        }

        .intro-info-card .val {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
        }

        .intro-info-card .lbl {
            font-size: 12px;
            color: #94A3B8;
        }

        .intro-points {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 24px;
        }

        .intro-point-item {
            border-left: 3px solid var(--primary);
            padding-left: 12px;
        }

        .intro-point-item h4 {
            font-size: 16px;
            margin-bottom: 4px;
            color: var(--secondary);
        }

        .intro-point-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 3. 核心优势六宫格 */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .advantage-card {
            background: #ffffff;
            padding: 32px 26px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .advantage-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }

        .advantage-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .advantage-card h3 {
            font-size: 19px;
            margin-bottom: 10px;
            color: var(--secondary);
        }

        .advantage-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 4. 热门餐饮机器人矩阵 */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .product-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
        }

        .product-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .product-thumb {
            height: 220px;
            overflow: hidden;
            position: relative;
        }

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

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

        .product-tag-float {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(15, 23, 42, 0.85);
            color: #ffffff;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 4px;
            backdrop-filter: blur(4px);
        }

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

        .product-body h3 {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--secondary);
        }

        .product-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .product-specs-list {
            margin-top: auto;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            font-size: 13px;
            color: var(--text-main);
        }

        .product-specs-list li {
            display: flex;
            justify-content: space-between;
            margin-bottom: 6px;
            list-style: none;
        }

        .product-specs-list span {
            color: var(--text-muted);
        }

        /* 5. 深色理念区与云端调度中枢 */
        .system-diagram-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .system-points-box {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .system-point-card {
            background: var(--dark-card);
            border: 1px solid var(--border-dark);
            padding: 20px;
            border-radius: var(--radius-md);
        }

        .system-point-card h4 {
            color: #F8FAFC;
            font-size: 17px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .system-point-card h4 span {
            width: 24px;
            height: 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }

        .system-point-card p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.6;
            margin: 0;
        }

        .system-img-holder {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-dark);
        }

        .system-img-holder img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        /* 6. 典型餐饮落地应用场景 */
        .scene-tabs-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .scene-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: left;
            transition: all 0.25s ease;
        }

        .scene-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .scene-step-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .scene-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--secondary);
        }

        .scene-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 7. 餐饮数字化实效数据统计条 */
        .metrics-strip {
            background: linear-gradient(90deg, #1E293B 0%, #0F172A 100%);
            color: #ffffff;
            padding: 50px 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .metric-item .number {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
            font-family: inherit;
        }

        .metric-item .label {
            font-size: 15px;
            font-weight: 500;
            color: #E2E8F0;
            margin-bottom: 4px;
        }

        .metric-item .sub {
            font-size: 12px;
            color: #94A3B8;
        }

        /* 8. 用户口碑与评价墙 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .testimonial-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .testimonial-quote {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .author-meta h4 {
            font-size: 16px;
            color: var(--secondary);
            margin-bottom: 2px;
        }

        .author-meta p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        .author-tag {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
        }

        /* 9. 资讯与行业观察摘要 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }

        .news-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

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

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

        .news-content {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

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

        .news-content h3 {
            font-size: 17px;
            margin-bottom: 10px;
            color: var(--secondary);
            line-height: 1.4;
        }

        .news-content p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
        }

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

        /* 10. 软硬件技术配置与选型表 */
        .specs-table-container {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow-x: auto;
            box-shadow: var(--shadow-sm);
        }

        .specs-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        .specs-table th, .specs-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .specs-table th {
            background-color: #F8FAFC;
            font-weight: 700;
            color: var(--secondary);
        }

        .specs-table tr:last-child td {
            border-bottom: none;
        }

        .specs-table .highlight-col {
            background-color: rgba(249, 87, 33, 0.03);
            font-weight: 600;
            color: var(--primary);
        }

        .specs-tag {
            display: inline-block;
            background: #EEF2F6;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 12px;
        }

        /* 11. FAQ 手风琴 */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.2s;
        }

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

        .faq-question {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-toggle-icon {
            font-size: 18px;
            color: var(--primary);
            transition: transform 0.2s;
        }

        .faq-item.active .faq-toggle-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            background-color: #FAFAFA;
        }

        .faq-item.active .faq-answer {
            padding: 0 24px 20px 24px;
            max-height: 250px;
        }

        /* 12. 方案试用与测算收口 CTA */
        .cta-box-card {
            background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%), url('/assets/images/1fff7026ca7402b1.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            border-radius: var(--radius-xl);
            color: #ffffff;
            padding: 60px 50px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
            box-shadow: var(--shadow-lg);
        }

        .cta-content h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-content p {
            font-size: 15px;
            color: #CBD5E1;
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .cta-hotline-badge {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.1);
            padding: 10px 18px;
            border-radius: var(--radius-md);
            font-size: 15px;
            border: 1px solid rgba(255,255,255,0.15);
        }

        .cta-hotline-badge strong {
            color: var(--primary);
            font-size: 18px;
        }

        .cta-mini-form {
            background: #ffffff;
            padding: 30px;
            border-radius: var(--radius-lg);
            color: var(--text-main);
        }

        .cta-mini-form h3 {
            font-size: 18px;
            margin-bottom: 16px;
            color: var(--secondary);
            text-align: center;
        }

        /* 页脚规范 */
        .site-footer {
            background-color: #0B1120;
            color: #94A3B8;
            padding: 60px 0 24px;
            font-size: 14px;
            border-top: 1px solid var(--border-dark);
        }

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

        .footer-brand h4 {
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            line-height: 1.7;
            font-size: 13px;
            margin-bottom: 16px;
        }

        .footer-col h5 {
            font-size: 15px;
            color: #ffffff;
            margin-bottom: 16px;
            font-weight: 600;
        }

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

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

        .footer-col ul a {
            color: #94A3B8;
            font-size: 13px;
        }

        .footer-col ul a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* 移动端响应式适配 */
        @media (max-width: 1024px) {
            .hero-grid, .intro-grid, .system-diagram-grid, .cta-box-card {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .advantage-grid, .products-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-tabs-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                height: auto;
                padding: 12px 0;
                flex-direction: column;
                gap: 12px;
            }
            .nav-links {
                flex-wrap: wrap;
                justify-content: center;
                gap: 16px;
            }
            .top-bar .container {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
            .advantage-grid, .products-grid, .news-grid, .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .scene-tabs-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .cta-box-card {
                padding: 30px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }