/* roulang page: index */
:root {
            --primary-start: #7928CA;
            --primary-end: #FF0080;
            --primary-gradient: linear-gradient(135deg, #7928CA 0%, #FF0080 100%);
            --secondary-start: #0070F3;
            --secondary-end: #00DFD8;
            --secondary-gradient: linear-gradient(135deg, #0070F3 0%, #00DFD8 100%);
            --bg-body: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-dark: #0B0F19;
            --bg-dark-card: #141C2E;
            --text-main: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --text-light: #F8FAFC;
            --border-light: rgba(226, 232, 240, 0.8);
            --border-dark: rgba(255, 255, 255, 0.1);
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.5rem;
            --radius-pill: 9999px;
            --shadow-soft: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
            --shadow-hover: 0 20px 35px -5px rgba(121, 40, 202, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.04);
            --container-w: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-body);
            color: var(--text-body);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul, ol {
            list-style: none;
        }

        button, input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* 统一双行 Header */
        .top-bar {
            background-color: #060911;
            color: #94A3B8;
            font-size: 0.8125rem;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .top-bar-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(255, 255, 255, 0.06);
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-pill);
            color: #E2E8F0;
        }

        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 4.5rem;
        }

        .brand-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.02em;
        }

        .brand-logo .logo-icon {
            width: 2rem;
            height: 2rem;
            border-radius: 0.5rem;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 900;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 1.75rem;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 0.5rem 0;
        }

        .nav-link:hover, .nav-link.active {
            color: #7928CA;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-gradient);
            transition: var(--transition);
            border-radius: 2px;
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .btn-gradient {
            background: var(--primary-gradient);
            color: #FFF !important;
            padding: 0.65rem 1.4rem;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            box-shadow: 0 4px 14px rgba(121, 40, 202, 0.35);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(121, 40, 202, 0.45);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--border-light);
            padding: 0.65rem 1.4rem;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: #F1F5F9;
            border-color: #CBD5E1;
            transform: translateY(-2px);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-main);
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 6.5rem;
            left: 0;
            width: 100%;
            height: calc(100vh - 6.5rem);
            background: #FFFFFF;
            padding: 2rem;
            z-index: 999;
            flex-direction: column;
            gap: 1.5rem;
            border-top: 1px solid var(--border-light);
            box-shadow: 0 20px 25px rgba(0, 0, 0, 0.1);
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer .nav-link {
            font-size: 1.125rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid #F1F5F9;
        }

        /* 核心通用样式 */
        .section {
            padding: 5.5rem 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 3.5rem auto;
        }

        .section-badge {
            display: inline-block;
            padding: 0.35rem 1rem;
            background: rgba(121, 40, 202, 0.08);
            border: 1px solid rgba(121, 40, 202, 0.2);
            color: #7928CA;
            font-size: 0.8125rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            margin-bottom: 0.85rem;
            letter-spacing: 0.02em;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 1rem;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-soft);
            transition: var(--transition);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(121, 40, 202, 0.25);
        }

        /* 板块一：Hero KV 沉浸与倒计时 */
        .hero-section {
            padding: 4rem 0 5.5rem 0;
            background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-wrapper {
            position: relative;
            border-radius: 2rem;
            overflow: hidden;
            background: url('/assets/images/650eca2ba664c84d.webp') center/cover no-repeat;
            min-height: 580px;
            display: flex;
            align-items: center;
            box-shadow: 0 25px 50px -12px rgba(11, 15, 25, 0.25);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 15, 25, 0.94) 0%, rgba(11, 15, 25, 0.78) 50%, rgba(11, 15, 25, 0.45) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 3.5rem;
            color: #FFFFFF;
        }

        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 0.4rem 1rem;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            color: #00DFD8;
        }

        .hero-h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1.25rem;
            color: #FFFFFF;
        }

        .hero-p {
            font-size: 1.0625rem;
            line-height: 1.7;
            color: #CBD5E1;
            margin-bottom: 1.75rem;
        }

        .hero-countdown-bar {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 2rem;
            backdrop-filter: blur(10px);
        }

        .countdown-label {
            font-size: 0.875rem;
            color: #E2E8F0;
        }

        .countdown-digits {
            display: flex;
            gap: 0.5rem;
            font-weight: 700;
            font-family: monospace;
            font-size: 1.125rem;
        }

        .countdown-digits span {
            background: rgba(0, 0, 0, 0.4);
            padding: 0.25rem 0.6rem;
            border-radius: 0.35rem;
            color: #00DFD8;
            border: 1px solid rgba(0, 223, 216, 0.3);
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-glow {
            background: var(--primary-gradient);
            color: #FFFFFF;
            padding: 0.85rem 1.85rem;
            border-radius: var(--radius-pill);
            font-size: 1rem;
            font-weight: 700;
            box-shadow: 0 0 25px rgba(255, 0, 128, 0.5);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-glow:hover {
            transform: scale(1.03);
            box-shadow: 0 0 35px rgba(255, 0, 128, 0.7);
        }

        /* 板块二：KPI看板 (4列数据徽章) */
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: -3.5rem;
            position: relative;
            z-index: 10;
        }

        .kpi-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-soft);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .kpi-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary-gradient);
        }

        .kpi-num {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 0.35rem;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .kpi-title {
            font-size: 0.9375rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.25rem;
        }

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

        /* 板块三：卖点三连：智能推荐核心指标矩阵 */
        .triple-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .triple-card {
            padding: 2.25rem;
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .triple-badge {
            display: inline-flex;
            width: 3.25rem;
            height: 3.25rem;
            border-radius: var(--radius-lg);
            background: rgba(121, 40, 202, 0.08);
            color: #7928CA;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
        }

        .triple-h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .triple-p {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 1.25rem;
        }

        .triple-meta {
            font-size: 0.8125rem;
            font-weight: 600;
            color: #0070F3;
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        /* 板块四：服务矩阵：热门应用场景与方案 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .service-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .service-thumb {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .service-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .service-tag {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: rgba(11, 15, 25, 0.75);
            backdrop-filter: blur(4px);
            color: #00DFD8;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.3rem 0.75rem;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(0, 223, 216, 0.3);
        }

        .service-body {
            padding: 1.75rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .service-h3 {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .service-p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }

        .service-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: #7928CA;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        /* 板块五：底层技术与认证规范 */
        .about-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3.5rem;
            align-items: center;
        }

        .about-img-box {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

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

        .about-specs {
            margin-top: 1.75rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }

        .spec-item {
            background: #F1F5F9;
            padding: 1rem;
            border-radius: var(--radius-md);
            border-left: 3px solid #7928CA;
        }

        .spec-item strong {
            display: block;
            font-size: 0.875rem;
            color: var(--text-main);
            margin-bottom: 0.25rem;
        }

        .spec-item span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 板块六：六重核心优势矩阵 */
        .adv-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }

        .adv-card {
            padding: 2rem;
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-light);
        }

        .adv-icon {
            width: 2.75rem;
            height: 2.75rem;
            border-radius: 0.75rem;
            background: var(--secondary-gradient);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
        }

        .adv-h3 {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.65rem;
        }

        .adv-p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块七：深色黑曜石案例与理念沉浸区 */
        .dark-section {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 6rem 0;
            position: relative;
        }

        .dark-section .section-title {
            color: #FFFFFF;
        }

        .dark-section .section-desc {
            color: #94A3B8;
        }

        .case-showcase {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
            background: var(--bg-dark-card);
            border-radius: 2rem;
            padding: 3rem;
            border: 1px solid var(--border-dark);
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
        }

        .case-left h3 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: #FFFFFF;
        }

        .case-left p {
            font-size: 0.9375rem;
            color: #94A3B8;
            line-height: 1.7;
            margin-bottom: 1.75rem;
        }

        .case-stat-row {
            display: flex;
            gap: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .case-stat-val {
            font-size: 2rem;
            font-weight: 800;
            color: #00DFD8;
        }

        .case-stat-lbl {
            font-size: 0.8125rem;
            color: #64748B;
        }

        .case-right {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 1.25rem;
        }

        .flow-step {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 1.25rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .step-num {
            width: 2rem;
            height: 2rem;
            background: var(--primary-gradient);
            border-radius: var(--radius-pill);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.875rem;
            font-weight: 700;
            color: #FFF;
        }

        .step-txt strong {
            display: block;
            font-size: 0.9375rem;
            color: #FFF;
            margin-bottom: 0.2rem;
        }

        .step-txt span {
            font-size: 0.8125rem;
            color: #94A3B8;
        }

        /* 板块八：结果对比：传统规则 VS 智能推荐系统 */
        .comparison-table-wrap {
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

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

        .comp-table th, .comp-table td {
            padding: 1.25rem 1.75rem;
            border-bottom: 1px solid #F1F5F9;
        }

        .comp-table th {
            background: #F8FAFC;
            font-size: 0.9375rem;
            font-weight: 700;
            color: var(--text-main);
        }

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

        .comp-table .feat-col {
            font-weight: 600;
            color: var(--text-main);
            width: 25%;
        }

        .comp-table .trad-col {
            color: var(--text-muted);
            width: 37.5%;
        }

        .comp-table .ai-col {
            color: #7928CA;
            font-weight: 600;
            background: rgba(121, 40, 202, 0.02);
            width: 37.5%;
        }

        .badge-positive {
            display: inline-block;
            background: rgba(0, 223, 216, 0.15);
            color: #0070F3;
            padding: 0.2rem 0.5rem;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            margin-right: 0.5rem;
        }

        /* 板块九：优惠券墙与沙盒体验通道 */
        .coupon-wall {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }

        .coupon-card {
            background: #FFFFFF;
            border: 2px dashed rgba(121, 40, 202, 0.3);
            border-radius: var(--radius-xl);
            padding: 2rem;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .coupon-card::before, .coupon-card::after {
            content: '';
            position: absolute;
            top: 50%;
            width: 1.25rem;
            height: 1.25rem;
            background: var(--bg-body);
            border-radius: 50%;
            transform: translateY(-50%);
        }

        .coupon-card::before { left: -0.625rem; }
        .coupon-card::after { right: -0.625rem; }

        .coupon-val {
            font-size: 2.25rem;
            font-weight: 900;
            color: #FF0080;
            margin-bottom: 0.5rem;
        }

        .coupon-val span {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-left: 0.25rem;
        }

        .coupon-h4 {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .coupon-rule {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            line-height: 1.5;
        }

        /* 板块十：发展里程碑与技术演进 */
        .milestone-timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .milestone-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: #E2E8F0;
            transform: translateX(-50%);
        }

        .milestone-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2.5rem;
            position: relative;
        }

        .milestone-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .milestone-content {
            width: 44%;
            background: #FFFFFF;
            padding: 1.5rem;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-soft);
        }

        .milestone-dot {
            position: absolute;
            left: 50%;
            width: 1rem;
            height: 1rem;
            background: #7928CA;
            border: 3px solid #FFF;
            border-radius: 50%;
            transform: translateX(-50%);
            box-shadow: 0 0 0 4px rgba(121, 40, 202, 0.2);
            z-index: 2;
        }

        .milestone-date {
            font-size: 0.8125rem;
            font-weight: 700;
            color: #FF0080;
            margin-bottom: 0.35rem;
        }

        .milestone-h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.35rem;
        }

        .milestone-p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块十一：前沿技术资讯与白皮书摘要 */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .insight-card {
            display: flex;
            flex-direction: column;
        }

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

        .insight-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .insight-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .insight-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .insight-h3 {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.65rem;
            line-height: 1.4;
        }

        .insight-p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }

        /* 板块十二：平台保障条体系 */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .guarantee-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            border: 1px solid var(--border-light);
            text-align: center;
        }

        .guarantee-icon {
            font-size: 2rem;
            margin-bottom: 0.75rem;
            display: inline-block;
        }

        .guarantee-h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.35rem;
        }

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

        /* 板块十三：快速解答 FAQ 与收口行动区 */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

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

        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: #7928CA;
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            display: none;
            padding: 0 1.5rem 1.25rem 1.5rem;
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.65;
            border-top: 1px solid #F8FAFC;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .cta-box {
            margin-top: 4.5rem;
            background: var(--primary-gradient);
            border-radius: 2rem;
            padding: 3.5rem;
            color: #FFFFFF;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(121, 40, 202, 0.3);
        }

        .cta-h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .cta-p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 650px;
            margin: 0 auto 2rem auto;
            line-height: 1.6;
        }

        .cta-form {
            display: flex;
            justify-content: center;
            gap: 0.75rem;
            max-width: 500px;
            margin: 0 auto;
        }

        .cta-input {
            flex: 1;
            padding: 0.85rem 1.25rem;
            border-radius: var(--radius-pill);
            background: #FFFFFF;
            color: var(--text-main);
            font-size: 0.9375rem;
        }

        .cta-submit {
            background: #0B0F19;
            color: #FFFFFF;
            padding: 0.85rem 1.75rem;
            border-radius: var(--radius-pill);
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
        }

        .cta-submit:hover {
            background: #000000;
            transform: translateY(-2px);
        }

        /* 底部固定转化浮动条 */
        .floating-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(11, 15, 25, 0.92);
            backdrop-filter: blur(10px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 0.75rem 0;
            z-index: 990;
            transform: translateY(100%);
            transition: var(--transition);
        }

        .floating-bar.show {
            transform: translateY(0);
        }

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

        .floating-info {
            color: #FFFFFF;
            font-size: 0.9375rem;
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .floating-info span {
            color: #00DFD8;
            font-weight: 700;
        }

        /* 全功能页脚 Footer */
        .main-footer {
            background: #060911;
            color: #94A3B8;
            padding: 4.5rem 0 2rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 3rem;
            margin-bottom: 3.5rem;
        }

        .footer-brand h4 {
            font-size: 1.25rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            line-height: 1.7;
            margin-bottom: 1.25rem;
            color: #64748B;
        }

        .footer-col h5 {
            font-size: 0.9375rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 1.25rem;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.65rem;
        }

        .footer-links a:hover {
            color: #FF0080;
        }

        .footer-contact-item {
            margin-bottom: 0.75rem;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }

        .footer-contact-item strong {
            color: #E2E8F0;
        }

        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
            color: #64748B;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .kpi-grid, .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .triple-grid, .service-grid, .adv-grid, .coupon-wall, .insight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-split, .case-showcase {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .nav-menu, .nav-actions .btn-outline {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-h1 {
                font-size: 2rem;
            }
            .hero-content {
                padding: 2rem 1.5rem;
            }
            .hero-countdown-bar {
                flex-direction: column;
                gap: 0.75rem;
                align-items: flex-start;
            }
            .kpi-grid, .triple-grid, .service-grid, .adv-grid, .coupon-wall, .guarantee-grid, .insight-grid {
                grid-template-columns: 1fr;
            }
            .milestone-timeline::before {
                left: 1rem;
            }
            .milestone-item, .milestone-item:nth-child(even) {
                flex-direction: row;
                justify-content: flex-start;
            }
            .milestone-dot {
                left: 1rem;
            }
            .milestone-content {
                width: calc(100% - 3rem);
                margin-left: 3rem;
            }
            .case-showcase {
                padding: 1.5rem;
            }
            .case-stat-row {
                flex-direction: column;
                gap: 1rem;
            }
            .cta-form {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
            }
            .floating-inner {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }
        }