/* roulang page: index */
:root {
            --primary: #1E40AF;
            --primary-hover: #1D4ED8;
            --primary-light: #EFF6FF;
            --secondary: #0EA5E9;
            --dark-surface: #0F172A;
            --dark-card: #1E293B;
            --bg-neutral: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 14px 34px -4px rgba(15, 23, 42, 0.1);
            --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

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

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Top Bar */
        .top-bar {
            background-color: #0B1329;
            color: #94A3B8;
            font-size: 13px;
            height: 38px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .top-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(14, 165, 233, 0.15);
            color: #38BDF8;
            padding: 2px 10px;
            border-radius: 20px;
            font-weight: 500;
        }
        .top-info {
            display: flex;
            gap: 20px;
        }
        .top-info span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Nav */
        .main-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);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 19px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .brand-logo i {
            font-size: 24px;
            color: var(--secondary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 32px;
        }
        .nav-menu a {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-body);
            position: relative;
            padding: 8px 0;
        }
        .nav-menu a:hover, .nav-menu a.active {
            color: var(--primary);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid transparent;
            min-height: 46px;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(30, 64, 175, 0.25);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(30, 64, 175, 0.35);
        }
        .btn-outline {
            background: #FFFFFF;
            color: var(--text-heading);
            border-color: var(--border);
        }
        .btn-outline:hover {
            background: var(--bg-neutral);
            border-color: #CBD5E1;
            color: var(--primary);
        }
        .btn-light {
            background: rgba(255, 255, 255, 0.12);
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.24);
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        /* Section Global */
        .section-block {
            padding: 84px 0;
            position: relative;
        }
        .section-gray {
            background-color: #F1F5F9;
        }
        .section-white {
            background-color: #FFFFFF;
        }
        .section-dark {
            background-color: var(--dark-surface);
            color: #F8FAFC;
        }
        .section-header {
            max-width: 840px;
            margin: 0 auto 56px auto;
            text-align: center;
        }
        .section-header.left-aligned {
            text-align: left;
            margin-left: 0;
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 20px;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-heading);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-dark .section-title {
            color: #FFFFFF;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .section-dark .section-desc {
            color: #94A3B8;
        }

        /* Hero Video Mockup */
        .hero-banner {
            position: relative;
            background: #0B1329;
            overflow: hidden;
            padding: 100px 0 80px 0;
            color: #FFFFFF;
        }
        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.28;
            filter: blur(1px);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }
        .hero-h1 {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -1px;
            color: #FFFFFF;
        }
        .hero-p {
            font-size: 17px;
            color: #CBD5E1;
            line-height: 1.8;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 48px;
        }
        .video-player-wrap {
            position: relative;
            max-width: 960px;
            margin: 0 auto;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: #000000;
        }
        .video-poster {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
            opacity: 0.85;
        }
        .play-button-overlay {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 80px;
            height: 80px;
            background: rgba(30, 64, 175, 0.85);
            backdrop-filter: blur(8px);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-size: 28px;
            cursor: pointer;
            box-shadow: 0 0 35px rgba(14, 165, 233, 0.6);
            transition: var(--transition);
        }
        .play-button-overlay:hover {
            transform: translate(-50%, -50%) scale(1.1);
            background: var(--primary);
        }
        .video-ctrl-bar {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 24px;
            background: linear-gradient(transparent, rgba(15, 23, 42, 0.9));
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: #E2E8F0;
        }

        /* KPI Dashboard Bar */
        .kpi-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .kpi-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
        }
        .kpi-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #CBD5E1;
        }
        .kpi-num {
            font-size: 38px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }
        .kpi-label {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .kpi-sub {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Service Matrix (6 Cards) */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .matrix-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .matrix-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #93C5FD;
        }
        .matrix-icon-box {
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 20px;
        }
        .matrix-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
        }
        .matrix-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 18px;
        }
        .matrix-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .matrix-tags span {
            background: #F1F5F9;
            color: #475569;
            font-size: 12px;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 500;
        }

        /* Before vs After */
        .contrast-table-box {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .contrast-row-head {
            display: grid;
            grid-template-columns: 240px 1fr 1fr;
            background: #F8FAFC;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-heading);
            border-bottom: 2px solid var(--border);
            padding: 18px 24px;
        }
        .contrast-row {
            display: grid;
            grid-template-columns: 240px 1fr 1fr;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            align-items: center;
        }
        .contrast-row:last-child {
            border-bottom: none;
        }
        .contrast-row:hover {
            background-color: #F8FAFC;
        }
        .contrast-dim {
            font-weight: 600;
            color: var(--text-heading);
        }
        .contrast-bad {
            color: #64748B;
            padding-right: 20px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .contrast-bad i {
            color: #EF4444;
            margin-top: 3px;
        }
        .contrast-good {
            color: #0F172A;
            font-weight: 500;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .contrast-good i {
            color: #10B981;
            margin-top: 3px;
        }

        /* 3-Column Products */
        .products-tri-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .product-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .product-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .product-img-box {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .product-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .product-card:hover .product-img-box img {
            transform: scale(1.05);
        }
        .product-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .product-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
        }
        .product-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
            flex: 1;
        }
        .product-footer {
            border-top: 1px solid var(--border);
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* Scenarios Tabs & Showcase */
        .scenario-box {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 32px;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 32px;
            box-shadow: var(--shadow-md);
        }
        .scenario-nav {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sc-item {
            padding: 16px 20px;
            border-radius: var(--radius-md);
            background: #F8FAFC;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
        }
        .sc-item.active {
            background: var(--primary-light);
            border-color: #BFDBFE;
        }
        .sc-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .sc-item.active h4 {
            color: var(--primary);
        }
        .sc-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.4;
        }
        .scenario-display {
            background: #F8FAFC;
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .scenario-display h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-heading);
            margin-bottom: 12px;
        }
        .scenario-display p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .scenario-specs {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 16px;
        }
        .spec-unit {
            background: #FFFFFF;
            padding: 14px 18px;
            border-radius: 8px;
            border: 1px solid var(--border);
        }
        .spec-unit span {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
        }
        .spec-unit strong {
            font-size: 15px;
            color: var(--primary);
            font-weight: 700;
        }

        /* Demo Console Stage */
        .console-stage {
            background: #0B132B;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            overflow: hidden;
            color: #FFFFFF;
        }
        .console-head {
            background: #1C2541;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .window-dots {
            display: flex;
            gap: 8px;
        }
        .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #475569;
        }
        .dot.r { background: #EF4444; }
        .dot.y { background: #F59E0B; }
        .dot.g { background: #10B981; }
        .console-body {
            display: grid;
            grid-template-columns: 260px 1fr;
            min-height: 480px;
        }
        .console-sidebar {
            background: #111B35;
            padding: 20px;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
        }
        .tree-title {
            font-size: 12px;
            color: #94A3B8;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .tree-item {
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 13px;
            color: #CBD5E1;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }
        .tree-item.active {
            background: rgba(14, 165, 233, 0.2);
            color: #38BDF8;
            font-weight: 600;
        }
        .console-main {
            padding: 24px;
            background: #0B132B;
        }
        .code-preview-bar {
            background: #070B19;
            border-radius: 8px;
            padding: 16px;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 13px;
            line-height: 1.6;
            color: #7DD3FC;
            overflow-x: auto;
            border: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 20px;
        }

        /* Cases Grid */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .case-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .case-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 12px;
        }
        .case-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 20px;
        }
        .case-stats {
            display: flex;
            gap: 24px;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            margin-bottom: 20px;
        }
        .cs-item strong {
            font-size: 24px;
            color: var(--primary);
            display: block;
        }
        .cs-item span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Stories Quote */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .story-item {
            background: #FFFFFF;
            padding: 32px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            position: relative;
        }
        .story-quote {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            margin-bottom: 24px;
            position: relative;
        }
        .story-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .author-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
        }
        .author-meta h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-heading);
        }
        .author-meta p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Timeline Milestone */
        .milestone-track {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }
        .milestone-track::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: var(--border);
            transform: translateX(-50%);
        }
        .ms-row {
            display: flex;
            justify-content: flex-end;
            padding-right: 50%;
            position: relative;
            margin-bottom: 40px;
        }
        .ms-row:nth-child(even) {
            justify-content: flex-start;
            padding-right: 0;
            padding-left: 50%;
        }
        .ms-dot {
            position: absolute;
            top: 20px;
            left: 50%;
            transform: translate(-50%, 0);
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #FFFFFF;
            border: 4px solid var(--primary);
            z-index: 2;
        }
        .ms-content {
            background: #FFFFFF;
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            width: 90%;
            box-shadow: var(--shadow-sm);
        }
        .ms-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 8px;
        }
        .ms-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* News Section */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .news-body {
            padding: 20px;
        }
        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .news-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-card p {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        /* Guarantee Icon Strip */
        .guarantee-bar {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            box-shadow: var(--shadow-sm);
        }
        .g-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .g-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .g-item h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 4px;
        }
        .g-item p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* FAQ Accordion */
        .faq-accordion {
            max-width: 880px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            user-select: none;
        }
        .faq-summary::-webkit-details-marker {
            display: none;
        }
        .faq-summary i {
            color: var(--text-muted);
            transition: transform 0.25s ease;
        }
        .faq-item[open] .faq-summary i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-content {
            padding: 0 24px 20px 24px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            border-top: 1px solid #F1F5F9;
            padding-top: 16px;
        }

        /* Final CTA */
        .cta-card {
            background: linear-gradient(135deg, #1E40AF 0%, #0F172A 100%);
            border-radius: var(--radius-lg);
            padding: 64px 40px;
            text-align: center;
            color: #FFFFFF;
            box-shadow: var(--shadow-lg);
        }
        .cta-card h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-card p {
            font-size: 16px;
            color: #CBD5E1;
            max-width: 680px;
            margin: 0 auto 36px auto;
            line-height: 1.7;
        }
        .cta-form-inline {
            display: flex;
            justify-content: center;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .cta-input {
            flex: 1;
            padding: 14px 18px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 14px;
            outline: none;
        }
        .cta-input::placeholder {
            color: #94A3B8;
        }
        .cta-input:focus {
            border-color: #38BDF8;
            background: rgba(255, 255, 255, 0.15);
        }

        /* Footer */
        .main-footer {
            background-color: var(--dark-surface);
            color: #94A3B8;
            padding: 72px 0 32px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 56px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 16px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .footer-logo i {
            color: var(--secondary);
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            margin-bottom: 20px;
            color: #94A3B8;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-links a:hover {
            color: #FFFFFF;
        }
        .footer-contact-item {
            font-size: 13px;
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: #CBD5E1;
        }
        .footer-contact-item i {
            color: var(--secondary);
            margin-top: 4px;
        }
        .footer-bottom {
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #64748B;
        }
        .footer-filing {
            display: flex;
            gap: 20px;
        }

        /* Mobile Hamburger */
        .mobile-toggle {
            display: none;
            font-size: 22px;
            color: var(--text-heading);
            background: none;
            border: none;
            cursor: pointer;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .kpi-row { grid-template-columns: repeat(2, 1fr); }
            .matrix-grid { grid-template-columns: repeat(2, 1fr); }
            .products-tri-grid { grid-template-columns: 1fr; }
            .guarantee-bar { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
            .hero-h1 { font-size: 34px; }
        }
        @media (max-width: 768px) {
            .top-bar { display: none; }
            .mobile-toggle { display: block; }
            .nav-menu {
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                gap: 0;
                padding: 16px 24px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                display: none;
                border-bottom: 1px solid var(--border);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 14px 0;
                border-bottom: 1px solid #F1F5F9;
                width: 100%;
            }
            .nav-cta-btn { display: none; }
            .scenario-box { grid-template-columns: 1fr; }
            .console-body { grid-template-columns: 1fr; }
            .console-sidebar { display: none; }
            .case-grid, .stories-grid, .news-grid { grid-template-columns: 1fr; }
            .contrast-row-head, .contrast-row { grid-template-columns: 140px 1fr 1fr; font-size: 13px; }
            .milestone-track::before { left: 16px; }
            .ms-row, .ms-row:nth-child(even) {
                justify-content: flex-start;
                padding-left: 48px;
                padding-right: 0;
            }
            .ms-dot { left: 16px; }
            .ms-content { width: 100%; }
            .guarantee-bar { grid-template-columns: 1fr; }
            .cta-form-inline { flex-direction: column; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
            .footer-filing { flex-direction: column; gap: 8px; }
            .hero-actions { flex-direction: column; }
        }
        @media (max-width: 520px) {
            .kpi-row { grid-template-columns: 1fr; }
            .matrix-grid { grid-template-columns: 1fr; }
            .contrast-row-head, .contrast-row { grid-template-columns: 1fr; gap: 8px; }
            .contrast-row-head { display: none; }
            .contrast-row { padding: 16px 12px; }
            .hero-h1 { font-size: 28px; }
        }