/* roulang page: index */
:root {
            --color-bg-base: #F8FAFC;
            --color-bg-white: #FFFFFF;
            --color-bg-dark: #0B1120;
            --color-bg-dark-card: #131E36;
            --color-primary: #0F172A;
            --color-accent: #0D9488;
            --color-accent-light: #14B8A6;
            --color-accent-glow: rgba(13, 148, 136, 0.25);
            --color-border: #E2E8F0;
            --color-border-dark: #1E293B;
            --color-text-main: #0F172A;
            --color-text-muted: #475569;
            --color-text-light: #94A3B8;
            --color-badge-bg: #F1F5F9;
            --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 28px -4px rgba(13, 148, 136, 0.15);
            --transition-standard: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            background-color: var(--color-bg-base);
            color: var(--color-text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        button, input, select, textarea {
            font: inherit;
        }

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

        /* Top Utility Bar */
        .top-utility-bar {
            background-color: #060A12;
            color: var(--color-text-light);
            font-size: 0.8125rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            position: relative;
            z-index: 100;
        }

        .top-utility-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 38px;
        }

        .top-utility-left, .top-utility-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            margin-right: 6px;
            box-shadow: 0 0 8px #10B981;
        }

        /* Header & Nav */
        .site-header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 99;
            border-bottom: 1px solid var(--color-border);
            transition: var(--transition-standard);
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.02em;
        }

        .logo-symbol {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #0F172A, #0D9488);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text-muted);
            padding: 8px 0;
            position: relative;
        }

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

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: var(--transition-standard);
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            background: linear-gradient(135deg, #0D9488, #0F766E);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 0.9375rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 4px 14px var(--color-accent-glow);
            cursor: pointer;
            transition: var(--transition-standard);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(13, 148, 136, 0.35);
            background: linear-gradient(135deg, #14B8A6, #0D9488);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            background-color: #FFFFFF;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9375rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: var(--transition-standard);
        }

        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: #F8FAFC;
        }

        .btn-ghost-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            background-color: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 0.9375rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.15);
            cursor: pointer;
            transition: var(--transition-standard);
        }

        .btn-ghost-dark:hover {
            background-color: rgba(255, 255, 255, 0.18);
            border-color: #FFFFFF;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: var(--color-primary);
        }

        /* Section Layouts */
        .section {
            padding-top: 96px;
            padding-bottom: 96px;
            position: relative;
        }

        .section-alt {
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

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

        .section-header {
            margin-bottom: 56px;
            max-width: 820px;
        }

        .section-header.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background-color: rgba(13, 148, 136, 0.1);
            color: var(--color-accent);
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            border-radius: 9999px;
            margin-bottom: 16px;
            border: 1px solid rgba(13, 148, 136, 0.2);
        }

        .badge-tag-dark {
            background-color: rgba(20, 184, 166, 0.15);
            color: #2DD4BF;
            border-color: rgba(45, 212, 191, 0.3);
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }

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

        .section-desc {
            font-size: 1.0625rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

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

        /* Hero Section */
        .hero-section {
            background-color: #060B14;
            color: #FFFFFF;
            position: relative;
            padding-top: 80px;
            padding-bottom: 100px;
            overflow: hidden;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(to right, rgba(6, 11, 20, 0.95) 40%, rgba(6, 11, 20, 0.75)), url('/assets/images/6f0cc01a79607dcf.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.5;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-location-bar {
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 8px 16px;
            border-radius: 9999px;
            font-size: 0.8125rem;
            margin-bottom: 24px;
        }

        .hero-location-item {
            display: flex;
            align-items: center;
            gap: 6px;
            color: #CBD5E1;
        }

        .hero-location-item svg {
            color: var(--color-accent-light);
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 24px;
        }

        .hero-title .text-gradient {
            background: linear-gradient(135deg, #FFFFFF 30%, #2DD4BF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-lead {
            font-size: 1.125rem;
            line-height: 1.8;
            color: #94A3B8;
            margin-bottom: 36px;
            max-width: 640px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }

        .hero-specs-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 32px;
        }

        .spec-mini-item {
            border-left: 2px solid var(--color-accent);
            padding-left: 12px;
        }

        .spec-mini-label {
            font-size: 0.75rem;
            color: #64748B;
            text-transform: uppercase;
            font-weight: 600;
        }

        .spec-mini-val {
            font-size: 1.125rem;
            font-weight: 700;
            color: #FFFFFF;
            font-family: var(--font-mono);
            margin-top: 2px;
        }

        /* Hero Right Panel */
        .hero-board-panel {
            background: rgba(15, 23, 42, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(16px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            position: relative;
        }

        .hero-board-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 20%;
            right: 20%;
            height: 1px;
            background: linear-gradient(90deg, transparent, #2DD4BF, transparent);
        }

        .panel-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding-bottom: 16px;
            margin-bottom: 20px;
        }

        .panel-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: #E2E8F0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .panel-status {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            background: rgba(16, 185, 129, 0.15);
            color: #34D399;
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        .register-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            font-family: var(--font-mono);
            font-size: 0.8125rem;
            margin-bottom: 20px;
        }

        .register-cell {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            padding: 10px 14px;
            border-radius: var(--radius-sm);
        }

        .reg-name {
            color: #64748B;
            font-size: 0.6875rem;
        }

        .reg-val {
            color: #38BDF8;
            font-weight: 600;
            margin-top: 2px;
        }

        .hero-card-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
            position: relative;
            aspect-ratio: 16/9;
        }

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

        /* Pain Points & Architecture */
        .pain-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .pain-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .pain-card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            box-shadow: var(--shadow-card);
            transition: var(--transition-standard);
        }

        .pain-card:hover {
            border-color: var(--color-accent);
            transform: translateX(4px);
        }

        .pain-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background-color: #FEF2F2;
            color: #EF4444;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .pain-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

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

        .arch-frame {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

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

        .arch-badge {
            font-size: 0.75rem;
            background-color: #EEF2F6;
            color: var(--color-text-main);
            padding: 4px 10px;
            border-radius: 4px;
            font-family: var(--font-mono);
        }

        .arch-image-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4/3;
            background-color: #0F172A;
        }

        .arch-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Core Advantages 6 Grid */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .advantage-card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-standard);
            position: relative;
        }

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

        .advantage-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background-color: rgba(13, 148, 136, 0.1);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .advantage-card-title {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .advantage-card-desc {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.65;
        }

        .advantage-card-metric {
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px dashed var(--color-border);
            font-family: var(--font-mono);
            font-size: 0.8125rem;
            color: var(--color-accent);
            font-weight: 600;
        }

        /* Featured Products Matrix */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

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

        .product-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
            border-color: #CBD5E1;
        }

        .product-card-top {
            padding: 24px;
            background: linear-gradient(to bottom, #F8FAFC, #FFFFFF);
            border-bottom: 1px solid var(--color-border);
        }

        .product-series {
            font-size: 0.75rem;
            color: var(--color-accent);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }

        .product-model {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-mono);
        }

        .product-short {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            margin-top: 6px;
        }

        .product-thumb {
            padding: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: #FAFAFA;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .product-thumb img {
            max-height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .product-specs-table {
            padding: 20px 24px;
            flex-grow: 1;
        }

        .spec-row {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            font-size: 0.875rem;
            border-bottom: 1px solid #F1F5F9;
        }

        .spec-row:last-child {
            border-bottom: none;
        }

        .spec-k {
            color: var(--color-text-muted);
        }

        .spec-v {
            font-weight: 600;
            color: var(--color-primary);
            font-family: var(--font-mono);
        }

        .product-card-actions {
            padding: 20px 24px;
            background-color: #F8FAFC;
            border-top: 1px solid var(--color-border);
        }

        .btn-full {
            width: 100%;
        }

        /* Deep Tech & Philosophy Section */
        .deep-tech-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .tech-list-box {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .tech-item {
            background-color: var(--color-bg-dark-card);
            border: 1px solid var(--color-border-dark);
            padding: 20px;
            border-radius: var(--radius-md);
            display: flex;
            gap: 16px;
        }

        .tech-num {
            font-size: 1.25rem;
            font-weight: 800;
            color: #2DD4BF;
            font-family: var(--font-mono);
            line-height: 1;
        }

        .tech-item-title {
            font-size: 1.0625rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }

        .tech-item-desc {
            font-size: 0.875rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }

        .code-ecosystem-card {
            background: #060B14;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            font-family: var(--font-mono);
            font-size: 0.8125rem;
            line-height: 1.7;
            color: #CBD5E1;
            position: relative;
        }

        .code-badge-bar {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
        }

        .code-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #334155;
        }

        .code-token-keyword { color: #F472B6; }
        .code-token-func { color: #60A5FA; }
        .code-token-type { color: #34D399; }
        .code-token-comment { color: #64748B; font-style: italic; }

        /* Development Steps */
        .step-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .step-number {
            font-family: var(--font-mono);
            font-size: 2.25rem;
            font-weight: 800;
            color: #E2E8F0;
            line-height: 1;
            margin-bottom: 16px;
        }

        .step-card:hover .step-number {
            color: var(--color-accent);
        }

        .step-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

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

        /* Application Scenarios */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

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

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

        .scenario-image {
            aspect-ratio: 16/10;
            background-color: #0F172A;
            overflow: hidden;
        }

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

        .scenario-card:hover .scenario-image img {
            transform: scale(1.04);
        }

        .scenario-body {
            padding: 28px;
        }

        .scenario-tag {
            font-size: 0.75rem;
            color: var(--color-accent);
            font-weight: 600;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .scenario-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .scenario-desc {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .scenario-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--color-primary);
            border-top: 1px solid #F1F5F9;
            padding-top: 14px;
        }

        .scenario-features li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .scenario-features li svg {
            color: #10B981;
            flex-shrink: 0;
        }

        /* Key Metrics Bar */
        .metrics-strip {
            background: linear-gradient(135deg, #0F172A, #060A12);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
            padding: 64px 0;
        }

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

        .metric-col {
            padding: 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .metric-big {
            font-size: 3rem;
            font-weight: 800;
            color: #2DD4BF;
            font-family: var(--font-mono);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 1rem;
            font-weight: 600;
            color: #F8FAFC;
            margin-bottom: 4px;
        }

        .metric-sub {
            font-size: 0.8125rem;
            color: #94A3B8;
        }

        /* Client Endorsement */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .testimonial-stars {
            display: flex;
            gap: 4px;
            color: #F59E0B;
            margin-bottom: 16px;
        }

        .testimonial-text {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
            font-style: normal;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 14px;
            border-top: 1px solid #F1F5F9;
            padding-top: 16px;
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #E2E8F0, #CBD5E1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-primary);
        }

        .author-name {
            font-size: 0.9375rem;
            font-weight: 700;
            color: var(--color-primary);
        }

        .author-role {
            font-size: 0.75rem;
            color: #64748B;
        }

        /* Technical Insights Section */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .insight-card {
            background-color: #FFFFFF;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-standard);
        }

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

        .insight-thumb {
            aspect-ratio: 16/9;
            background-color: #0F172A;
            overflow: hidden;
        }

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

        .insight-body {
            padding: 24px;
        }

        .insight-date {
            font-size: 0.75rem;
            color: #64748B;
            margin-bottom: 8px;
            font-family: var(--font-mono);
        }

        .insight-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .insight-desc {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .insight-link {
            font-size: 0.875rem;
            color: var(--color-accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* Quality Assurance Bar */
        .qa-strip {
            background-color: #FFFFFF;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: 40px 0;
        }

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

        .qa-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .qa-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background-color: rgba(13, 148, 136, 0.1);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .qa-title {
            font-size: 0.9375rem;
            font-weight: 700;
            color: var(--color-primary);
        }

        .qa-sub {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        /* FAQ Accordion Section */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .faq-card:hover {
            border-color: #CBD5E1;
        }

        .faq-question {
            width: 100%;
            padding: 22px 28px;
            text-align: left;
            background: none;
            border: none;
            outline: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--color-primary);
            cursor: pointer;
            gap: 16px;
        }

        .faq-toggle-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: #F1F5F9;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-card.active .faq-toggle-icon {
            transform: rotate(180deg);
            background-color: var(--color-accent);
            color: #FFFFFF;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
            background-color: #F8FAFC;
            border-top: 1px solid transparent;
        }

        .faq-card.active .faq-answer {
            border-top-color: var(--color-border);
        }

        .faq-answer-inner {
            padding: 20px 28px 24px;
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Bottom CTA Section */
        .cta-box-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            background: linear-gradient(135deg, #0F172A 0%, #060B14 100%);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 56px;
            color: #FFFFFF;
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.4);
        }

        .cta-info-side {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .cta-title {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .cta-desc {
            font-size: 1rem;
            color: #94A3B8;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .cta-contact-pills {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .contact-pill-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.9375rem;
            color: #E2E8F0;
        }

        .contact-pill-item svg {
            color: #2DD4BF;
        }

        .cta-form-side {
            background-color: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 32px;
            backdrop-filter: blur(8px);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group.full {
            grid-column: 1 / -1;
        }

        .form-label {
            font-size: 0.8125rem;
            font-weight: 600;
            color: #CBD5E1;
        }

        .form-control {
            background: rgba(15, 23, 42, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            color: #FFFFFF;
            font-size: 0.875rem;
            transition: var(--transition-standard);
        }

        .form-control:focus {
            outline: none;
            border-color: #2DD4BF;
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.2);
            background: rgba(15, 23, 42, 0.9);
        }

        .form-control option {
            background-color: #0F172A;
            color: #FFFFFF;
        }

        /* Footer */
        .site-footer {
            background-color: #060A12;
            color: #94A3B8;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 80px;
            padding-bottom: 40px;
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 64px;
        }

        .footer-col-title {
            color: #FFFFFF;
            font-size: 0.9375rem;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

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

        .footer-link {
            color: #94A3B8;
            transition: var(--transition-standard);
        }

        .footer-link:hover {
            color: #2DD4BF;
            padding-left: 4px;
        }

        .footer-brand-desc {
            line-height: 1.7;
            margin-top: 16px;
            color: #64748B;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
            color: #64748B;
        }

        .footer-legal-links {
            display: flex;
            gap: 20px;
        }

        /* Mobile Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .hero-board-panel {
                display: none;
            }
            .pain-grid, .deep-tech-wrap, .cta-box-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .advantage-grid, .product-grid, .scenario-grid, .testimonial-grid, .insight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-timeline, .metrics-grid, .qa-grid, .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-col {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding-bottom: 24px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding-top: 64px;
                padding-bottom: 64px;
            }
            .top-utility-bar {
                display: none;
            }
            .main-nav {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-title {
                font-size: 2.125rem;
            }
            .hero-specs-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .advantage-grid, .product-grid, .scenario-grid, .testimonial-grid, .insight-grid, .step-timeline, .qa-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-box-grid {
                padding: 32px 20px;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }
            /* Mobile Drawer */
            .mobile-drawer {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                bottom: 0;
                background-color: #0B1120;
                padding: 24px;
                display: none;
                flex-direction: column;
                gap: 16px;
                z-index: 98;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
            }
            .mobile-drawer.open {
                display: flex;
            }
            .mobile-drawer a {
                color: #FFFFFF;
                font-size: 1.125rem;
                padding: 12px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
        }

        @media (max-width: 375px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-title {
                font-size: 1.85rem;
            }
            .btn-primary, .btn-secondary, .btn-ghost-dark {
                width: 100%;
            }
        }