/* roulang page: index */
:root {
            --primary: #1E293B;
            --primary-dark: #0F172A;
            --accent: #C2410C;
            --accent-hover: #9A3412;
            --accent-light: #FFEDD5;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --border-color: #E2E8F0;
            --text-main: #0F172A;
            --text-muted: #475569;
            --text-light: #94A3B8;
            --radius-sm: 4px;
            --radius-md: 6px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 10px 20px -5px rgba(0, 0, 0, 0.08);
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: "DIN Alternate", "Inter", monospace, sans-serif;
        }

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

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-white);
            color: var(--text-main);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* 顶部导航 Utility Bar */
        .utility-bar {
            background-color: var(--primary-dark);
            color: var(--text-light);
            font-size: 13px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 8px 0;
        }
        .utility-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .utility-left span, .utility-right span {
            margin-right: 18px;
        }
        .utility-left span:last-child, .utility-right span:last-child {
            margin-right: 0;
        }

        /* 主导航条 */
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .site-logo .badge-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 24px;
        }
        .nav-menu a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 6px 0;
            position: relative;
        }
        .nav-menu a:hover {
            color: var(--accent);
        }
        .nav-cta-btn {
            background-color: var(--accent);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s;
            display: inline-block;
        }
        .nav-cta-btn:hover {
            background-color: var(--accent-hover);
            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-color: var(--primary);
            margin: 5px 0;
            transition: 0.3s;
        }

        /* 基础区块规范 */
        .section-block {
            padding: 84px 0;
            position: relative;
        }
        .section-block.bg-alt {
            background-color: var(--bg-light);
        }
        .section-block.bg-dark {
            background-color: var(--primary-dark);
            color: #FFFFFF;
        }
        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 54px auto;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent);
            background: rgba(194, 65, 12, 0.08);
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 14px;
        }
        .section-block.bg-dark .section-tag {
            background: rgba(194, 65, 12, 0.2);
            color: #FB923C;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .section-block.bg-dark .section-title {
            color: #FFFFFF;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .section-block.bg-dark .section-desc {
            color: var(--text-light);
        }

        /* 板块一：Hero */
        .hero-section {
            position: relative;
            background-color: var(--primary-dark);
            background-image: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.85)), url('/assets/images/37676829a16f1f99.webp');
            background-size: cover;
            background-position: center;
            color: #ffffff;
            padding: 100px 0 120px 0;
            min-height: 640px;
            display: flex;
            align-items: center;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 44px;
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero-lead {
            font-size: 16px;
            line-height: 1.75;
            color: #CBD5E1;
            margin-bottom: 34px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .btn-primary {
            background-color: var(--accent);
            color: #ffffff;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            display: inline-block;
            transition: 0.2s;
            border: 1px solid var(--accent);
        }
        .btn-primary:hover {
            background-color: var(--accent-hover);
        }
        .btn-outline-white {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #ffffff;
            padding: 13px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            display: inline-block;
            transition: 0.2s;
            background: rgba(255, 255, 255, 0.05);
        }
        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #ffffff;
        }
        .hero-portal-card {
            background: rgba(30, 41, 59, 0.7);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            padding: 32px;
        }
        .portal-header {
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 16px;
            margin-bottom: 20px;
        }
        .portal-header h3 {
            font-size: 18px;
            font-weight: 600;
            color: #ffffff;
        }
        .portal-header p {
            font-size: 13px;
            color: var(--text-light);
            margin-top: 4px;
        }
        .portal-grid-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }
        .portal-item {
            background: rgba(255, 255, 255, 0.05);
            padding: 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: 0.2s;
        }
        .portal-item:hover {
            background: rgba(194, 65, 12, 0.15);
            border-color: rgba(194, 65, 12, 0.4);
            transform: translateY(-2px);
        }
        .portal-item strong {
            display: block;
            font-size: 14px;
            color: #ffffff;
            margin-bottom: 4px;
        }
        .portal-item span {
            font-size: 12px;
            color: #94A3B8;
            line-height: 1.4;
            display: block;
        }

        /* 板块二：传统建材集采痛点对比 (#challenges) */
        .painpoint-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .pain-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: 0.2s;
        }
        .pain-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #CBD5E1;
        }
        .pain-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .pain-index {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
        }
        .pain-label-trad {
            background: #FEE2E2;
            color: #991B1B;
            font-size: 11px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: var(--radius-sm);
        }
        .pain-card h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .pain-card .trad-text {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
        }
        .platform-solution {
            border-top: 1px dashed var(--border-color);
            padding-top: 14px;
        }
        .solution-tag {
            color: #15803D;
            background: #DCFCE7;
            font-size: 11px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            display: inline-block;
            margin-bottom: 6px;
        }
        .solution-desc {
            font-size: 13px;
            color: var(--primary-dark);
            line-height: 1.5;
            font-weight: 500;
        }

        /* 板块三：品牌定位与平台赋能介绍区 (#about) */
        .about-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-content h3 {
            font-size: 28px;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 18px;
        }
        .about-content p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .cert-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 28px;
        }
        .cert-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            background: var(--bg-light);
            padding: 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
        }
        .cert-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent);
            margin-top: 6px;
            flex-shrink: 0;
        }
        .cert-text strong {
            display: block;
            font-size: 13px;
            color: var(--primary);
        }
        .cert-text span {
            font-size: 12px;
            color: var(--text-muted);
        }
        .about-media {
            position: relative;
        }
        .about-media img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .media-badge {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: rgba(15, 23, 42, 0.9);
            color: #ffffff;
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--accent);
        }
        .media-badge strong {
            display: block;
            font-size: 18px;
            font-family: var(--font-mono);
        }
        .media-badge span {
            font-size: 12px;
            color: var(--text-light);
        }

        /* 板块四：核心赋能优势矩阵区 (#advantages) */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .adv-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius-md);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .adv-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: #CBD5E1;
        }
        .adv-icon-box {
            width: 48px;
            height: 48px;
            background: #FFF7ED;
            color: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            border: 1px solid #FFEDD5;
        }
        .adv-card h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .adv-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 板块五：热门建材工程品类展示区 (#products) */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .product-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: 0.2s;
        }
        .product-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #CBD5E1;
        }
        .product-thumb {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .product-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .product-card:hover .product-thumb img {
            transform: scale(1.04);
        }
        .product-stock-pill {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(15, 23, 42, 0.85);
            color: #ffffff;
            font-size: 12px;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            font-family: var(--font-mono);
        }
        .product-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .product-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .product-spec-table {
            width: 100%;
            font-size: 13px;
            border-collapse: collapse;
            margin-bottom: 16px;
        }
        .product-spec-table td {
            padding: 6px 0;
            border-bottom: 1px solid #F1F5F9;
        }
        .product-spec-table td:first-child {
            color: var(--text-muted);
            width: 35%;
        }
        .product-spec-table td:last-child {
            color: var(--primary);
            font-weight: 500;
            text-align: right;
        }
        .product-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
        }
        .product-action-link {
            margin-top: auto;
            text-align: center;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: var(--radius-sm);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            display: block;
            transition: 0.2s;
        }
        .product-action-link:hover {
            background: var(--accent);
            color: #ffffff;
            border-color: var(--accent);
        }

        /* 板块六：全链路数字化交付步骤 (#workflow) */
        .step-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .step-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 26px;
            position: relative;
        }
        .step-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: #E2E8F0;
            line-height: 1;
            margin-bottom: 14px;
        }
        .step-card h4 {
            font-size: 17px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 板块七：深色工业案例与低碳供应链理念区 (#case-study) */
        .case-study-banner {
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            background: rgba(30, 41, 59, 0.6);
            padding: 40px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .case-content h3 {
            font-size: 26px;
            color: #ffffff;
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .case-content p {
            font-size: 14px;
            color: #CBD5E1;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .case-stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
        }
        .stat-box strong {
            display: block;
            font-family: var(--font-mono);
            font-size: 24px;
            color: #FB923C;
        }
        .stat-box span {
            font-size: 12px;
            color: #94A3B8;
        }
        .case-media img {
            border-radius: var(--radius-sm);
            width: 100%;
            height: 280px;
            object-fit: cover;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* 板块八：关键供应链运营数据条 (#metrics) */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .metric-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: var(--radius-md);
            text-align: center;
        }
        .metric-number {
            font-family: var(--font-mono);
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .metric-number .unit {
            font-size: 20px;
            color: var(--accent);
            font-weight: 500;
            margin-left: 2px;
        }
        .metric-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .metric-sub {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 板块九：工程采购方与项目经理用户故事 (#stories) */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }
        .story-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .story-header {
            padding: 24px 24px 16px 24px;
            background: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
        }
        .story-header h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .story-header span {
            font-size: 13px;
            color: var(--text-muted);
        }
        .story-body {
            padding: 24px;
            flex-grow: 1;
        }
        .story-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .story-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .story-tag {
            font-size: 12px;
            background: #EFF6FF;
            color: #1D4ED8;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
        }

        /* 板块十：行业客户评价与信誉背书 (#testimonials) */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testi-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 28px;
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .testi-stars {
            color: #EAB308;
            font-size: 14px;
            margin-bottom: 14px;
            letter-spacing: 2px;
        }
        .testi-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 20px;
        }
        .testi-meta {
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .testi-author strong {
            display: block;
            font-size: 14px;
            color: var(--primary);
        }
        .testi-author span {
            font-size: 12px;
            color: var(--text-light);
        }
        .badge-verified {
            font-size: 11px;
            color: #15803D;
            background: #DCFCE7;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            font-weight: 500;
        }

        /* 板块十一：建材集采动态与行业资讯 (#news) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: 0.2s;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #CBD5E1;
        }
        .news-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .news-meta-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-light);
            font-family: var(--font-mono);
        }
        .news-badge {
            font-size: 11px;
            color: var(--accent);
            background: #FFF7ED;
            padding: 2px 8px;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        .news-card h4 {
            font-size: 17px;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .news-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .news-more-btn {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-more-btn:hover {
            color: var(--accent-hover);
        }

        /* 板块十二：采购常见疑问手风琴 (#faq) */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            background: #ffffff;
            overflow: hidden;
        }
        .faq-trigger {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s;
        }
        .faq-trigger:hover {
            background: var(--bg-light);
        }
        .faq-icon {
            font-size: 20px;
            font-weight: 400;
            color: var(--accent);
            transition: transform 0.3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: var(--bg-light);
            border-top: 1px solid transparent;
        }
        .faq-item.active .faq-answer {
            padding: 20px 24px;
            max-height: 300px;
            border-top-color: var(--border-color);
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块十三：底部全局成交转化区 (#cta) */
        .cta-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-md);
            padding: 50px 60px;
            color: #ffffff;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .cta-text h3 {
            font-size: 32px;
            line-height: 1.3;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .cta-text p {
            font-size: 15px;
            color: #CBD5E1;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .cta-points {
            list-style: none;
        }
        .cta-points li {
            font-size: 14px;
            color: #E2E8F0;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .cta-points li::before {
            content: "✓";
            color: #FB923C;
            font-weight: 700;
        }
        .quote-form {
            background: #ffffff;
            border-radius: var(--radius-sm);
            padding: 30px;
            color: var(--text-main);
        }
        .form-row {
            margin-bottom: 16px;
        }
        .form-row label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--primary);
        }
        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s;
        }
        .form-control:focus {
            border-color: var(--accent);
        }
        .form-submit-btn {
            width: 100%;
            background: var(--accent);
            color: #ffffff;
            border: none;
            padding: 12px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: 0.2s;
            margin-top: 8px;
        }
        .form-submit-btn:hover {
            background: var(--accent-hover);
        }
        .form-privacy-note {
            font-size: 11px;
            color: var(--text-light);
            text-align: center;
            margin-top: 10px;
        }

        /* 页脚规范 Footer */
        .site-footer {
            background-color: var(--primary-dark);
            color: var(--text-light);
            padding: 70px 0 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-col h4 {
            font-size: 16px;
            color: #ffffff;
            margin-bottom: 18px;
            font-weight: 600;
        }
        .footer-col p {
            line-height: 1.7;
            margin-bottom: 14px;
            color: #94A3B8;
            font-size: 13px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94A3B8;
            font-size: 13px;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-contact-item {
            margin-bottom: 12px;
            font-size: 13px;
            line-height: 1.5;
        }
        .footer-contact-item strong {
            display: block;
            color: #ffffff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #64748B;
        }
        .footer-bottom a {
            color: #64748B;
            margin-left: 14px;
        }
        .footer-bottom a:hover {
            color: #94A3B8;
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .painpoint-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .metrics-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-study-banner {
                grid-template-columns: 1fr;
            }
            .cta-card {
                grid-template-columns: 1fr;
                padding: 40px 30px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .utility-bar {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #ffffff;
                flex-direction: column;
                padding: 20px;
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--border-color);
                gap: 16px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-cta-btn {
                display: none;
            }
            .section-block {
                padding: 60px 0;
            }
            .hero-section {
                padding: 60px 0 80px 0;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .about-split {
                grid-template-columns: 1fr;
            }
            .painpoint-grid, .advantage-grid, .product-grid, .step-flow, .metrics-strip, .stories-grid, .testimonial-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .footer-bottom a {
                margin: 0 6px;
            }
        }