/* roulang page: index */
:root {
            --bg-body: #F8FAFC;
            --bg-card: #FFFFFF;
            --bg-dark: #0B0F19;
            --bg-dark-card: #141B2D;
            --primary: #0052FF;
            --primary-hover: #0041CC;
            --accent-green: #00D084;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --text-light: #94A3B8;
            --border-color: #E2E8F0;
            --border-dark: rgba(255, 255, 255, 0.08);
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 10px 30px -10px rgba(0, 82, 255, 0.08);
            --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.08);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: var(--font-stack);
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.6;
        }

        body {
            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: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
        }

        .header-topbar {
            background: var(--bg-dark);
            color: var(--text-light);
            font-size: 13px;
            padding: 8px 0;
        }

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

        .system-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background-color: var(--accent-green);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 8px var(--accent-green);
        }

        .header-main {
            padding: 16px 0;
        }

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

        .logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }

        .logo-badge {
            background: rgba(0, 82, 255, 0.1);
            color: var(--primary);
            font-size: 11px;
            font-weight: 600;
            padding: 2px 6px;
            border-radius: 4px;
        }

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

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* 通用按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            border: 1px solid transparent;
            text-align: center;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 82, 255, 0.4);
        }

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

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

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

        .btn-accent:hover {
            opacity: 0.95;
            transform: translateY(-2px);
        }

        .btn-dark {
            background: #FFFFFF;
            color: var(--bg-dark);
            border: 1px solid #FFFFFF;
        }

        .btn-dark:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
        }

        /* 基础区块样式 */
        .section {
            padding: clamp(64px, 7vw, 100px) 0;
            position: relative;
        }

        .section-white {
            background-color: #FFFFFF;
        }

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

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

        .section-header {
            max-width: 760px;
            margin: 0 auto 52px auto;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--primary);
            background: rgba(0, 82, 255, 0.08);
            padding: 4px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 12px;
        }

        .section-dark .section-tag {
            background: rgba(0, 208, 132, 0.15);
            color: var(--accent-green);
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 36px);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

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

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

        /* 1. Hero 堆叠首屏 (主卡+两张侧卡交错) */
        .hero-section {
            padding: 60px 0 90px 0;
            background: radial-gradient(circle at 50% 0%, rgba(0, 82, 255, 0.06) 0%, transparent 70%), var(--bg-body);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .hero-intro {
            text-align: center;
            max-width: 860px;
            margin: 0 auto 48px auto;
        }

        .hero-title {
            font-size: clamp(32px, 4.5vw, 50px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -1px;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .hero-highlight {
            background: linear-gradient(135deg, var(--primary) 0%, #00C2FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* 卡片堆叠交互区 */
        .hero-stack-stage {
            position: relative;
            max-width: 1060px;
            margin: 0 auto;
            padding: 30px 0;
        }

        .hero-cards-wrapper {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-side-card {
            width: 320px;
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(8px);
            transition: all 0.3s ease;
            z-index: 1;
            opacity: 0.85;
        }

        .hero-side-left {
            transform: translateX(40px) scale(0.92) rotate(-2deg);
        }

        .hero-side-right {
            transform: translateX(-40px) scale(0.92) rotate(2deg);
        }

        .hero-side-card:hover {
            opacity: 1;
            z-index: 3;
            transform: scale(0.98);
        }

        .hero-main-card {
            width: 520px;
            background: #FFFFFF;
            border: 2px solid rgba(0, 82, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-lg);
            position: relative;
            z-index: 2;
        }

        .dashboard-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 14px;
            margin-bottom: 20px;
        }

        .dashboard-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .dashboard-live {
            background: rgba(0, 208, 132, 0.15);
            color: #059669;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 4px;
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-bottom: 20px;
        }

        .metric-box {
            background: var(--bg-body);
            padding: 14px;
            border-radius: 8px;
        }

        .metric-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .metric-val {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
        }

        .live-match-progress {
            background: var(--bg-body);
            border-radius: 8px;
            padding: 14px;
        }

        .match-info-bar {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .progress-bar-bg {
            height: 8px;
            background: #E2E8F0;
            border-radius: 4px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--accent-green));
            border-radius: 4px;
            width: 78%;
        }

        /* 2. 已上线能力 (Live Capabilities) */
        .capabilities-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .capability-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .capability-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 82, 255, 0.4);
            box-shadow: var(--shadow-md);
        }

        .cap-badge {
            align-self: flex-start;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 6px;
            background: rgba(0, 82, 255, 0.08);
            color: var(--primary);
            margin-bottom: 18px;
        }

        .cap-title {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .cap-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .cap-features {
            list-style: none;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .cap-features li {
            font-size: 13px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }

        .cap-features li::before {
            content: "✓";
            color: var(--accent-green);
            font-weight: 900;
        }

        /* 3. 正在进行中的技术引擎 (In-Progress / Flagship Engine) */
        .engine-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .engine-img-frame {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .engine-content h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .engine-content p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .engine-tags-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .engine-tag-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }

        /* 4. 规划中架构演进 (Roadmap Planning) */
        .roadmap-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .roadmap-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
            transition: all 0.3s ease;
        }

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

        .roadmap-phase {
            font-size: 12px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .roadmap-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .roadmap-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 5. 数字化对比对照表 (Comparison) */
        .comparison-table-wrapper {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

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

        .comp-table th, .comp-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

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

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

        .comp-col-highlight {
            background: rgba(0, 82, 255, 0.02);
            color: var(--primary);
            font-weight: 600;
        }

        .comp-badge-bad {
            color: #EF4444;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .comp-badge-good {
            color: #10B981;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
        }

        /* 6. 数据统计条 (Metrics Bar) */
        .metrics-bar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .metric-bar-item {
            padding: 24px 16px;
            border-right: 1px solid var(--border-dark);
        }

        .metric-bar-item:last-child {
            border-right: none;
        }

        .metric-bar-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-bar-label {
            font-size: 14px;
            color: var(--text-light);
        }

        /* 7. 用户口碑与行业背书 (Social Proof) */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .test-content {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-main);
            margin-bottom: 20px;
        }

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

        .author-avatar-text {
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .author-info h4 {
            font-size: 15px;
            font-weight: 700;
        }

        .author-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 8. 体育营销前沿资讯洞察 (In-Page Insights) */
        .news-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
        }

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

        .news-feat-img {
            height: 240px;
            overflow: hidden;
        }

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

        .news-featured:hover .news-feat-img img {
            transform: scale(1.05);
        }

        .news-feat-body {
            padding: 24px;
            flex-grow: 1;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all 0.25s ease;
        }

        .news-item:hover {
            border-color: var(--primary);
            transform: translateX(4px);
        }

        .news-item-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

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

        /* 9. 系统安全与服务保障 (Assurance) */
        .assurance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .assurance-box {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
        }

        .assure-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px auto;
            background: rgba(0, 82, 255, 0.1);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
        }

        .assure-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .assure-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 10. FAQ 手风琴 (Accordion) */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

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

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            user-select: none;
            background: #FFFFFF;
        }

        .faq-toggle {
            font-size: 20px;
            font-weight: 400;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background: var(--bg-body);
        }

        .faq-answer-inner {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            border-top: 1px solid var(--border-color);
        }

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

        .faq-item.active .faq-answer {
            max-height: 200px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        /* 11. 更新日志与版本演进 (Changelog) */
        .changelog-box {
            max-width: 860px;
            margin: 0 auto;
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
        }

        .changelog-item {
            display: grid;
            grid-template-columns: 140px 1fr;
            gap: 20px;
            padding-bottom: 24px;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .changelog-item:last-child {
            padding-bottom: 0;
            margin-bottom: 0;
            border-bottom: none;
        }

        .log-ver {
            font-size: 16px;
            font-weight: 800;
            color: var(--primary);
        }

        .log-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .log-details h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }

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

        /* 12. 最终强转化预约区 (Final CTA Banner) */
        .cta-banner-wrapper {
            background: linear-gradient(135deg, #0052FF 0%, #0036A8 100%);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            color: #FFFFFF;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-banner-title {
            font-size: clamp(24px, 3.2vw, 36px);
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-banner-desc {
            font-size: 16px;
            opacity: 0.9;
            max-width: 640px;
            margin: 0 auto 36px auto;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            max-width: 540px;
            margin: 0 auto;
        }

        .cta-input {
            flex: 1;
            padding: 14px 20px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.15);
            color: #FFFFFF;
            font-size: 15px;
            backdrop-filter: blur(10px);
            outline: none;
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }

        .cta-input:focus {
            background: rgba(255, 255, 255, 0.25);
            border-color: #FFFFFF;
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 70px 0 30px 0;
            border-top: 1px solid var(--border-dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand h3 {
            color: #FFFFFF;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 15px;
            margin-bottom: 18px;
            font-weight: 600;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-light);
        }

        .footer-col ul li a:hover {
            color: #FFFFFF;
        }

        .footer-contact-item {
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 移动端吸底转化条 */
        .mobile-sticky-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #FFFFFF;
            border-top: 1px solid var(--border-color);
            padding: 10px 16px;
            z-index: 99;
            box-shadow: 0 -4px 12px rgba(0,0,0,0.05);
        }

        .mobile-sticky-inner {
            display: flex;
            gap: 12px;
        }

        .mobile-sticky-inner .btn {
            flex: 1;
            padding: 10px;
            font-size: 14px;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .capabilities-grid, .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .roadmap-timeline {
                grid-template-columns: repeat(2, 1fr);
            }
            .assurance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .engine-split {
                grid-template-columns: 1fr;
            }
            .news-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links, .header-actions {
                display: none;
            }
            .mobile-sticky-bar {
                display: block;
            }
            body {
                padding-bottom: 60px;
            }
            .hero-cards-wrapper {
                flex-direction: column;
                gap: 16px;
            }
            .hero-side-card {
                display: none;
            }
            .hero-main-card {
                width: 100%;
                padding: 20px;
            }
            .capabilities-grid, .testimonials-grid, .roadmap-timeline, .assurance-grid {
                grid-template-columns: 1fr;
            }
            .metrics-bar-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .metric-bar-item {
                border-right: none;
                border-bottom: 1px solid var(--border-dark);
                padding: 16px 0;
            }
            .metric-bar-item:last-child {
                border-bottom: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .cta-form {
                flex-direction: column;
                width: 100%;
            }
            .cta-input, .cta-form .btn {
                width: 100%;
            }
            .changelog-item {
                grid-template-columns: 1fr;
                gap: 8px;
            }
        }