/* roulang page: index */
:root {
            --bg-body: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-dark: #090D14;
            --bg-dark-card: #111827;
            --text-main: #0F172A;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --color-primary: #00DC82;
            --color-primary-hover: #00B86B;
            --color-primary-dark: #065F46;
            --color-accent: #10B981;
            --border-color: #E2E8F0;
            --border-dark: #1E293B;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px -1px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 10px 25px -3px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 20px 35px -4px rgba(0, 0, 0, 0.1);
            --container-max: 1280px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        /* 顶部双行导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }

        .top-notice-bar {
            background-color: var(--bg-dark);
            color: var(--text-light);
            font-size: 0.75rem;
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--border-dark);
        }

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

        .notice-badge {
            background-color: rgba(0, 220, 130, 0.15);
            color: var(--color-primary);
            padding: 2px 8px;
            border-radius: 4px;
            margin-right: 8px;
            font-weight: 600;
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
        }

        .logo-symbol {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #090D14 0%, #111827 100%);
            border: 2px solid var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-weight: 900;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(0, 220, 130, 0.2);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-muted);
            position: relative;
            padding: 0.5rem 0;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--text-main);
        }

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

        .nav-cta-btn {
            background-color: var(--text-main);
            color: #FFFFFF;
            padding: 0.65rem 1.4rem;
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 4px 14px rgba(15, 23, 42, 0.15);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .nav-cta-btn:hover {
            background-color: var(--color-primary);
            color: var(--bg-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 220, 130, 0.3);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
            color: var(--text-main);
        }

        /* 基础区块排版 */
        .section-padding {
            padding: 5.5rem 0;
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 3.5rem auto;
        }

        .section-tag {
            display: inline-block;
            background-color: rgba(0, 220, 130, 0.12);
            color: var(--color-primary-dark);
            padding: 0.35rem 1rem;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 1rem;
            border: 1px solid rgba(0, 220, 130, 0.25);
        }

        .section-title {
            font-size: clamp(2rem, 3.5vw, 2.75rem);
            font-weight: 800;
            letter-spacing: -0.025em;
            color: var(--text-main);
            line-height: 1.25;
            margin-bottom: 1.25rem;
        }

        .section-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 1. Hero 首屏强转化区 */
        .hero-section {
            padding: 4.5rem 0 6rem 0;
            background: radial-gradient(circle at 80% 20%, rgba(0, 220, 130, 0.06) 0%, transparent 60%), #FFFFFF;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 3.5rem;
            align-items: center;
        }

        .hero-badge-live {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background-color: #090D14;
            color: #FFFFFF;
            padding: 0.4rem 1.1rem;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.75rem;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: var(--color-primary);
            border-radius: 50%;
            box-shadow: 0 0 10px var(--color-primary);
            animation: pulse-glow 2s infinite;
        }

        @keyframes pulse-glow {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 220, 130, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 220, 130, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 220, 130, 0); }
        }

        .hero-title {
            font-size: clamp(2.4rem, 4.5vw, 3.8rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            color: var(--text-main);
            margin-bottom: 1.5rem;
        }

        .hero-title span {
            color: #065F46;
            background: linear-gradient(135deg, #090D14 20%, #10B981 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-summary {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 2.25rem;
            max-width: 600px;
            line-height: 1.8;
        }

        .hero-cta-group {
            display: flex;
            gap: 1.25rem;
            flex-wrap: wrap;
            margin-bottom: 2.5rem;
        }

        .btn-primary {
            background-color: var(--color-primary);
            color: var(--bg-dark);
            padding: 0.95rem 2.2rem;
            border-radius: var(--radius-md);
            font-size: 1.05rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            box-shadow: 0 8px 24px rgba(0, 220, 130, 0.28);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 220, 130, 0.4);
        }

        .btn-secondary {
            background-color: #FFFFFF;
            color: var(--text-main);
            border: 1.5px solid var(--border-color);
            padding: 0.95rem 2rem;
            border-radius: var(--radius-md);
            font-size: 1.05rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            transition: all 0.25s ease;
        }

        .btn-secondary:hover {
            border-color: var(--text-main);
            background-color: #F8FAFC;
            transform: translateY(-2px);
        }

        .hero-cert-bar {
            display: flex;
            align-items: center;
            gap: 1.75rem;
            padding-top: 1.75rem;
            border-top: 1px solid var(--border-color);
        }

        .cert-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        .cert-icon {
            color: var(--color-accent);
            font-size: 1.1rem;
        }

        .hero-visual-card {
            background: #FFFFFF;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            position: relative;
        }

        .hero-visual-card img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .visual-floating-pill {
            position: absolute;
            bottom: 1.5rem;
            left: 1.5rem;
            right: 1.5rem;
            background: rgba(9, 13, 20, 0.88);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 1.1rem 1.5rem;
            border-radius: var(--radius-md);
            color: #FFFFFF;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .visual-pill-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-primary);
        }

        .visual-pill-desc {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* 2. 权威认证与生态指标条 */
        .credentials-strip {
            background-color: #FFFFFF;
            padding: 2.25rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .credentials-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            align-items: center;
        }

        .cred-item {
            border-left: 2px solid var(--color-primary);
            padding-left: 1.25rem;
        }

        .cred-title {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 0.25rem;
        }

        .cred-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 3. 产品功能全景架构区 */
        .product-overview-section {
            background-color: #FFFFFF;
        }

        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .overview-media {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .modules-list {
            display: flex;
            flex-direction: column;
            gap: 1.75rem;
        }

        .module-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem;
            border-radius: var(--radius-lg);
            background: var(--bg-body);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .module-item:hover {
            background: #FFFFFF;
            border-color: var(--color-primary);
            transform: translateX(6px);
            box-shadow: var(--shadow-sm);
        }

        .module-number {
            font-size: 1.25rem;
            font-weight: 900;
            color: var(--color-primary-dark);
            min-width: 40px;
        }

        .module-title {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 0.4rem;
        }

        .module-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 4. 六维核心竞争优势卡片矩阵 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .feature-card {
            background-color: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.25rem;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            position: relative;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 220, 130, 0.5);
            box-shadow: var(--shadow-md);
        }

        .feature-index {
            font-size: 0.85rem;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 1rem;
            letter-spacing: 0.05em;
        }

        .feature-name {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .feature-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 5. 热门终端与定制版本展厅 */
        .editions-section {
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .editions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .edition-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 2.5rem 2rem;
            background: #FFFFFF;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: all 0.3s ease;
        }

        .edition-card.featured {
            border: 2px solid var(--color-primary);
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .edition-badge {
            position: absolute;
            top: -12px;
            right: 24px;
            background-color: var(--color-primary);
            color: var(--bg-dark);
            font-size: 0.75rem;
            font-weight: 800;
            padding: 0.25rem 0.8rem;
            border-radius: 9999px;
            text-transform: uppercase;
        }

        .edition-header {
            margin-bottom: 1.5rem;
        }

        .edition-icon {
            font-size: 2rem;
            margin-bottom: 1rem;
            display: inline-block;
        }

        .edition-title {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .edition-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .edition-specs {
            list-style: none;
            margin: 1.75rem 0;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .edition-spec-item {
            font-size: 0.9rem;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .edition-spec-item::before {
            content: '✓';
            color: var(--color-accent);
            font-weight: 800;
        }

        .btn-edition {
            width: 100%;
            text-align: center;
            padding: 0.85rem;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 0.95rem;
            border: 1px solid var(--border-color);
            background: var(--bg-body);
            color: var(--text-main);
        }

        .edition-card.featured .btn-edition {
            background-color: var(--color-primary);
            color: var(--bg-dark);
            border-color: var(--color-primary);
        }

        .btn-edition:hover {
            border-color: var(--text-main);
            background-color: var(--text-main);
            color: #FFFFFF;
        }

        /* 6. 深度赛事引擎与技术理念深色对比区 */
        .tech-spec-section {
            background-color: var(--bg-dark);
            color: #FFFFFF;
            position: relative;
        }

        .tech-spec-section .section-title {
            color: #FFFFFF;
        }

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

        .tech-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .tech-blueprint {
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-xl);
            background: var(--bg-dark-card);
            padding: 2.25rem;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }

        .blueprint-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-dark);
        }

        .blueprint-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            font-family: monospace;
        }

        .blueprint-indicator {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .blueprint-stages {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .stage-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px dashed var(--border-dark);
            border-radius: var(--radius-md);
            padding: 1.25rem;
        }

        .stage-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.35rem;
        }

        .stage-data {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        .tech-features-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .tech-feature-point {
            display: flex;
            gap: 1.25rem;
        }

        .tech-point-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 220, 130, 0.1);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 800;
            flex-shrink: 0;
            border: 1px solid rgba(0, 220, 130, 0.2);
        }

        .tech-point-heading {
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.4rem;
        }

        .tech-point-desc {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.65;
        }

        /* 7. 典型赛事用户沉浸式体验故事区 */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

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

        .story-role {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            background: rgba(0, 220, 130, 0.12);
            padding: 0.25rem 0.75rem;
            border-radius: 6px;
            margin-bottom: 1.25rem;
            width: fit-content;
        }

        .story-quote {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .story-author {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding-top: 1.25rem;
            border-top: 1px solid var(--border-color);
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-muted);
        }

        .author-name {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-main);
        }

        .author-context {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 8. 关键运营与赛事覆盖统计条 */
        .live-stats-section {
            background-color: var(--bg-dark);
            border-top: 1px solid var(--border-dark);
            border-bottom: 1px solid var(--border-dark);
            padding: 4rem 0;
            color: #FFFFFF;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }

        .stat-figure {
            font-size: clamp(2.2rem, 3.5vw, 3.2rem);
            font-weight: 900;
            color: var(--color-primary);
            line-height: 1.1;
            margin-bottom: 0.5rem;
            font-variant-numeric: tabular-nums;
        }

        .stat-label {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.25rem;
        }

        .stat-sub {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* 9. 权威机构与资深球迷综合评价网格 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

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

        .testi-stars {
            color: #F59E0B;
            font-size: 1rem;
            margin-bottom: 1rem;
            letter-spacing: 2px;
        }

        .testi-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .testi-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-color);
            padding-top: 1rem;
        }

        .testi-user {
            font-weight: 700;
            color: var(--text-main);
        }

        /* 10. 赛事资讯与动态分析内嵌模块 */
        .insights-section {
            background-color: #FFFFFF;
        }

        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .insight-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #FFFFFF;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .insight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 220, 130, 0.4);
        }

        .insight-thumb {
            height: 200px;
            overflow: hidden;
            background: #090D14;
        }

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

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

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

        .insight-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-primary-dark);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }

        .insight-title {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 0.75rem;
        }

        .insight-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }

        .insight-link {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-main);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .insight-link:hover {
            color: var(--color-primary-dark);
        }

        /* 11. 常见技术与使用疑虑拆解 FAQ 区 */
        .faq-container {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: #FFFFFF;
            overflow: hidden;
            transition: all 0.2s ease;
        }

        .faq-question {
            padding: 1.35rem 1.75rem;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-icon {
            font-size: 1.2rem;
            color: var(--color-primary-dark);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            background-color: var(--bg-body);
        }

        .faq-answer-inner {
            padding: 0 1.75rem 1.35rem 1.75rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

        .faq-item.active .faq-answer {
            max-height: 250px;
            padding-top: 0.5rem;
        }

        /* 12. 沉浸式最终转化保障区 */
        .cta-guarantee-section {
            background: linear-gradient(135deg, #090D14 0%, #111827 100%);
            color: #FFFFFF;
            padding: 6rem 0;
            position: relative;
            overflow: hidden;
        }

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

        .cta-box .section-title {
            color: #FFFFFF;
            margin-bottom: 1.25rem;
        }

        .cta-box .section-desc {
            color: var(--text-light);
            margin-bottom: 2.5rem;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: 3rem;
            flex-wrap: wrap;
        }

        .cta-badges-row {
            display: flex;
            justify-content: center;
            gap: 2.5rem;
            flex-wrap: wrap;
            border-top: 1px solid var(--border-dark);
            padding-top: 2.5rem;
        }

        .cta-badge-item {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: var(--text-light);
        }

        .cta-badge-item svg {
            width: 18px;
            height: 18px;
            fill: var(--color-primary);
        }

        /* 页脚系统 */
        .site-footer {
            background-color: #06090E;
            color: var(--text-light);
            padding: 4.5rem 0 2rem 0;
            border-top: 1px solid var(--border-dark);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 3.5rem;
            margin-bottom: 3.5rem;
        }

        .footer-brand-title {
            font-size: 1.25rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .footer-brand-desc {
            line-height: 1.7;
            margin-bottom: 1.5rem;
            font-size: 0.85rem;
        }

        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .footer-links-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-link {
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .footer-link:hover {
            color: var(--color-primary);
        }

        .footer-bottom-bar {
            border-top: 1px solid var(--border-dark);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: #64748B;
            flex-wrap: wrap;
            gap: 1rem;
        }

        /* 移动端吸底悬浮条 */
        .mobile-float-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(9, 13, 20, 0.96);
            backdrop-filter: blur(10px);
            padding: 0.75rem 1.25rem;
            border-top: 1px solid var(--border-dark);
            z-index: 99;
            justify-content: space-between;
            align-items: center;
        }

        .float-text {
            color: #FFFFFF;
            font-size: 0.85rem;
            font-weight: 600;
        }

        .float-sub {
            color: var(--color-primary);
            font-size: 0.75rem;
        }

        .float-cta {
            background-color: var(--color-primary);
            color: var(--bg-dark);
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-md);
            font-size: 0.85rem;
            font-weight: 700;
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .hero-grid, .overview-grid, .tech-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .credentials-grid, .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
            .features-grid, .editions-grid, .stories-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                position: relative;
            }
            .top-notice-bar {
                display: none;
            }
            .nav-links, .nav-cta-btn {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .features-grid, .editions-grid, .stories-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: 1fr;
            }
            .credentials-grid, .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .mobile-float-bar {
                display: flex;
            }
            .section-padding {
                padding: 3.5rem 0;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            body {
                padding-bottom: 60px;
            }
        }