/* roulang page: index */
:root {
            --primary: #0F2C59;
            --primary-dark: #0A192F;
            --primary-light: #1E3A8A;
            --accent: #FF6B00;
            --accent-green: #00C288;
            --accent-hover: #E05E00;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --text-main: #1E293B;
            --text-muted: #475569;
            --text-sub: #94A3B8;
            --border-color: #E2E8F0;
            --border-focus: #3B82F6;
            --shadow-sm: 0 2px 4px rgba(15, 44, 89, 0.04);
            --shadow-md: 0 6px 12px -2px rgba(15, 44, 89, 0.08);
            --shadow-lg: 0 20px 25px -5px rgba(15, 44, 89, 0.1), 0 8px 10px -6px rgba(15, 44, 89, 0.06);
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-full: 9999px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            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;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .header-topbar {
            background-color: var(--primary-dark);
            color: #94A3B8;
            font-size: 13px;
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .topbar-badge {
            background: rgba(0, 194, 136, 0.15);
            color: var(--accent-green);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 500;
            margin-right: 8px;
        }

        .header-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }

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

        .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: bold;
            font-size: 18px;
        }

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

        .nav-links a {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--accent);
        }

        .nav-cta {
            background: var(--accent);
            color: #fff !important;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 14px rgba(255, 107, 0, 0.3);
        }

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

        /* 按钮与徽章基准 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 16px;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            cursor: pointer;
            border: none;
            transition: var(--transition);
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 107, 0, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 0, 0.45);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
        }

        .btn-outline-dark {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline-dark:hover {
            background: var(--primary);
            color: #fff;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .badge-accent {
            background: rgba(255, 107, 0, 0.1);
            color: var(--accent);
        }

        .badge-green {
            background: rgba(0, 194, 136, 0.1);
            color: var(--accent-green);
        }

        /* 通用 Section 规范 */
        section {
            padding: 90px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 56px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

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

        /* Hero：前后对比与核心价值首屏 */
        .hero-section {
            background: linear-gradient(135deg, #0A192F 0%, #0F2C59 100%);
            color: #fff;
            padding: 100px 0 110px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/fee496a4aabf1ec3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-title {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero-title span {
            color: var(--accent);
        }

        .hero-intro {
            font-size: 17px;
            line-height: 1.8;
            color: #CBD5E1;
            margin-bottom: 36px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            margin-bottom: 40px;
        }

        .hero-trust-row {
            display: flex;
            gap: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 24px;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #94A3B8;
        }

        .trust-item strong {
            color: #fff;
            font-size: 16px;
        }

        /* 首屏对比卡片看板 */
        .compare-board {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 24px;
            backdrop-filter: blur(12px);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
        }

        .compare-header {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            padding-bottom: 12px;
        }

        .compare-cols {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .col-card {
            border-radius: var(--radius-md);
            padding: 18px;
        }

        .col-before {
            background: rgba(239, 68, 68, 0.08);
            border: 1px solid rgba(239, 68, 68, 0.2);
        }

        .col-after {
            background: rgba(0, 194, 136, 0.12);
            border: 1px solid rgba(0, 194, 136, 0.3);
        }

        .col-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .col-before .col-title { color: #FCA5A5; }
        .col-after .col-title { color: #6EE7B7; }

        .compare-list {
            list-style: none;
            font-size: 13px;
            line-height: 1.8;
        }

        .col-before .compare-list li { color: #E2E8F0; }
        .col-after .compare-list li { color: #FFFFFF; font-weight: 500; }

        /* 2. 痛点诊断区 */
        .pain-section {
            background: #FFFFFF;
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .pain-card {
            background: #FFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #CBD5E1;
        }

        .pain-num {
            font-size: 28px;
            font-weight: 900;
            color: #EF4444;
            opacity: 0.8;
            margin-bottom: 12px;
            font-family: monospace;
        }

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

        .pain-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 3. 课程与业务矩阵区 */
        .matrix-section {
            background: var(--bg-light);
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .matrix-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .matrix-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

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

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

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

        .matrix-content {
            padding: 28px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .matrix-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .matrix-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .matrix-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .matrix-tag {
            background: #F1F5F9;
            color: var(--primary-light);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
        }

        /* 4. 核心产品架构大纲 */
        .outline-section {
            background: #FFFFFF;
        }

        .outline-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .outline-info .section-title {
            text-align: left;
        }

        .outline-list {
            margin-top: 28px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .outline-item {
            display: flex;
            gap: 16px;
            background: var(--bg-light);
            padding: 18px 20px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--primary);
        }

        .outline-icon {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
        }

        .outline-text h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

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

        /* 5. 核心优势六宫格 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: var(--transition);
        }

        .feature-card:hover {
            border-color: var(--accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .feature-icon-badge {
            width: 48px;
            height: 48px;
            background: rgba(15, 44, 89, 0.06);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .feature-card:hover .feature-icon-badge {
            background: var(--accent);
            color: #fff;
        }

        .feature-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .feature-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 6. 深色技术引擎展示区 */
        .engine-section {
            background: var(--primary-dark);
            color: #FFFFFF;
        }

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

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

        .engine-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .engine-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            transition: var(--transition);
        }

        .engine-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent-green);
        }

        .engine-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #FFFFFF;
        }

        .engine-card p {
            font-size: 14px;
            color: #CBD5E1;
            line-height: 1.7;
        }

        /* 7. 标准实施四步法 */
        .steps-section {
            background: #FFFFFF;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-card {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px 22px;
            position: relative;
        }

        .step-badge {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
            margin-bottom: 18px;
        }

        .step-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

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

        /* 8. 成果数据统计条 */
        .metrics-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #FFFFFF;
            padding: 60px 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .metric-value {
            font-size: 44px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
            font-family: monospace;
        }

        .metric-label {
            font-size: 15px;
            color: #CBD5E1;
            font-weight: 500;
        }

        /* 9. 客户成功实战故事 */
        .case-section {
            background: var(--bg-light);
        }

        .case-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }

        .case-data-box {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 24px;
            border-left: 4px solid var(--accent);
        }

        .case-data-item {
            margin-bottom: 16px;
        }

        .case-data-item:last-child {
            margin-bottom: 0;
        }

        .case-data-item strong {
            display: block;
            font-size: 22px;
            color: var(--primary);
            font-weight: 800;
        }

        .case-data-item span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .case-content h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .case-content p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        /* 10. 用户多维口碑背书 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testi-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            box-shadow: var(--shadow-sm);
        }

        .testi-quote {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
            position: relative;
        }

        .testi-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid #F1F5F9;
            padding-top: 16px;
        }

        .testi-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .testi-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
        }

        .testi-role {
            font-size: 12px;
            color: var(--text-sub);
        }

        /* 11. 数字化资讯与指南 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

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

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

        .news-body {
            padding: 24px;
        }

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

        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }

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

        /* 12. 常见问题解答手风琴 */
        .faq-section {
            background: #FFFFFF;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .faq-question {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #FFFFFF;
            user-select: none;
        }

        .faq-question:hover {
            background: var(--bg-light);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
        }

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

        .faq-icon {
            font-size: 18px;
            transition: transform 0.3s ease;
            color: var(--accent);
        }

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

        /* 13. 底部强转化与试用表单 */
        .cta-section {
            background: linear-gradient(135deg, #0A192F 0%, #0F2C59 100%);
            color: #FFFFFF;
            padding: 80px 0;
        }

        .cta-box {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .cta-content h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
        }

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

        .cta-perks {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-perks li {
            font-size: 14px;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cta-form-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 36px;
            color: var(--text-main);
            box-shadow: var(--shadow-lg);
        }

        .cta-form-card h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .cta-form-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

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

        .form-input {
            width: 100%;
            height: 46px;
            padding: 0 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-input:focus {
            border-color: var(--border-focus);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
        }

        .form-submit-btn {
            width: 100%;
            height: 48px;
            background: var(--accent);
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: var(--transition);
        }

        .form-submit-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        /* 统一页脚 */
        .site-footer {
            background: #061120;
            color: #94A3B8;
            padding: 70px 0 30px;
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand .logo {
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #64748B;
            margin-bottom: 18px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

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

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: #64748B;
        }

        /* 响应式适配断点 */
        @media (max-width: 1024px) {
            .hero-grid, .cta-box, .outline-grid, .case-card {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .pain-grid, .steps-grid, .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid, .matrix-grid, .engine-grid, .news-grid, .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-topbar { display: none; }
            .nav-links { display: none; }
            .hero-title { font-size: 32px; }
            .section-title { font-size: 26px; }
            .features-grid, .matrix-grid, .engine-grid, .news-grid, .testimonials-grid, .pain-grid, .steps-grid, .metrics-grid {
                grid-template-columns: 1fr;
            }
            .compare-cols { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
            .hero-cta-group { flex-direction: column; }
        }