/* roulang page: index */
:root {
            --primary: #1A4B88;
            --primary-dark: #123562;
            --primary-light: #EBF3FC;
            --secondary: #0284C7;
            --accent: #0EA5E9;
            --dark-bg: #0F172A;
            --dark-surface: #1E293B;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-utility: #F1F5F9;
            --text-main: #0F172A;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --text-on-dark: #F1F5F9;
            --border-color: #E2E8F0;
            --danger-bg: #FEF2F2;
            --danger-border: #FECACA;
            --danger-text: #DC2626;
            --success-bg: #F0FDF4;
            --success-text: #16A34A;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 10px 30px -5px rgba(15, 23, 42, 0.05), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
            --shadow-hover: 0 20px 35px -5px rgba(26, 75, 136, 0.12), 0 8px 16px -4px rgba(26, 75, 136, 0.06);
            --container-width: 1280px;
            --transition: all 0.28s 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;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-white);
            line-height: 1.7;
            overflow-x: hidden;
        }

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

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

        ul, ol {
            list-style: none;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
        }

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

        /* Section Generic Styling */
        .section {
            padding: 88px 0;
            position: relative;
        }

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

        .section-dark {
            background-color: var(--dark-bg);
            color: var(--text-on-dark);
            padding: 96px 0;
        }

        .section-header {
            max-width: 820px;
            margin-bottom: 52px;
        }

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

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* Buttons & Badges */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
            box-shadow: 0 4px 12px rgba(26, 75, 136, 0.22);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(26, 75, 136, 0.32);
        }

        .btn-secondary {
            background-color: var(--secondary);
            color: #FFFFFF;
        }

        .btn-secondary:hover {
            background-color: #0369A1;
            transform: translateY(-2px);
        }

        .btn-outline {
            background-color: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

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

        /* 4.1 Top Utility Bar */
        .utility-bar {
            background-color: var(--bg-utility);
            border-bottom: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-secondary);
            height: 40px;
            display: flex;
            align-items: center;
        }

        .utility-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

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

        .utility-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
        }

        .utility-dot {
            width: 7px;
            height: 7px;
            background-color: var(--secondary);
            border-radius: 50%;
            display: inline-block;
        }

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

        /* 4.2 Main Navigation Bar */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .nav-inner {
            height: 78px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFFFFF;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(26, 75, 136, 0.2);
        }

        .brand-text-wrap {
            display: flex;
            flex-direction: column;
        }

        .brand-name {
            font-size: 19px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.3px;
        }

        .brand-sub {
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            padding: 8px 13px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-sm);
            position: relative;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
            font-weight: 600;
        }

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

        .nav-cta {
            border-radius: 999px;
            padding: 10px 20px;
            font-size: 14px;
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            align-items: center;
            justify-content: center;
            color: var(--text-main);
        }

        /* Section 1: Hero Carousel + Search + Quick Lead */
        .hero-section {
            position: relative;
            background-color: var(--bg-light);
            padding: 56px 0 72px;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .hero-banner-stage {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background-color: var(--dark-bg);
            box-shadow: var(--shadow-hover);
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-slide-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.28;
            transition: opacity 0.6s ease;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(95deg, rgba(15, 23, 42, 0.94) 0%, rgba(26, 75, 136, 0.86) 58%, rgba(15, 23, 42, 0.78) 100%);
        }

        .hero-content-grid {
            position: relative;
            z-index: 2;
            padding: 48px;
            width: 100%;
            display: grid;
            grid-template-columns: 1.25fr 0.75fr;
            gap: 40px;
            align-items: center;
        }

        .hero-question-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(14, 165, 233, 0.2);
            border: 1px solid rgba(14, 165, 233, 0.45);
            color: #7DD3FC;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .hero-title {
            font-size: 42px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.24;
            margin-bottom: 18px;
        }

        .hero-subtitle {
            font-size: 16px;
            color: #E2E8F0;
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 660px;
        }

        .hero-search-card {
            background: #FFFFFF;
            padding: 12px;
            border-radius: var(--radius-md);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
            display: grid;
            grid-template-columns: 140px 160px 1fr auto;
            gap: 10px;
            margin-bottom: 20px;
        }

        .hero-select, .hero-input {
            height: 46px;
            padding: 0 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            background-color: var(--bg-light);
            color: var(--text-main);
            font-size: 14px;
        }

        .hero-input:focus, .hero-select:focus {
            border-color: var(--secondary);
            background-color: #FFFFFF;
        }

        .hero-hot-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: #CBD5E1;
        }

        .hot-tag-chip {
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 999px;
            color: #F8FAFC;
            font-size: 12px;
        }

        .hot-tag-chip:hover {
            background: var(--secondary);
            border-color: var(--secondary);
        }

        .hero-lead-box {
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-md);
            padding: 28px;
            color: var(--text-main);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
        }

        .lead-box-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .lead-box-sub {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 18px;
        }

        .lead-mini-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .lead-mini-input {
            width: 100%;
            height: 42px;
            padding: 0 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            background: var(--bg-light);
            font-size: 14px;
        }

        .hero-carousel-controls {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 20px;
            padding: 0 8px;
        }

        .carousel-tabs {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .carousel-tab-btn {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .carousel-tab-btn.active {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        /* Section 2: Pain Points (4-column grid) */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .pain-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-top: 4px solid #EF4444;
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .pain-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--danger-border);
        }

        .pain-stat-badge {
            display: inline-flex;
            align-items: center;
            justify-content: space-between;
            background: var(--danger-bg);
            color: var(--danger-text);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 18px;
        }

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

        .pain-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Section 3: Platform Architecture & Compliance (Asymmetric 2-col) */
        .intro-split {
            display: grid;
            grid-template-columns: 1.08fr 0.92fr;
            gap: 48px;
            align-items: center;
        }

        .intro-visual-frame {
            position: relative;
            background: var(--bg-white);
            padding: 18px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }

        .intro-visual-img {
            width: 100%;
            height: 390px;
            object-fit: cover;
            border-radius: var(--radius-md);
        }

        .compliance-floating-badge {
            position: absolute;
            bottom: 34px;
            left: 34px;
            right: 34px;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(8px);
            color: #FFFFFF;
            padding: 18px 22px;
            border-radius: var(--radius-md);
            border-left: 4px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .compliance-badge-title {
            font-size: 15px;
            font-weight: 700;
            color: #38BDF8;
            margin-bottom: 4px;
        }

        .compliance-badge-sub {
            font-size: 13px;
            color: #E2E8F0;
        }

        .pillar-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-top: 28px;
        }

        .pillar-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            display: flex;
            gap: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

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

        .pillar-num {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 800;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .pillar-content h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .pillar-content p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* Section 4: 6 Core Advantages (3x2 Grid) */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .adv-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .adv-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }

        .adv-icon-box {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .adv-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .adv-desc {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .adv-meta-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            background: #F0F9FF;
            padding: 4px 10px;
            border-radius: 6px;
        }

        /* Section 5: Hot Patents (Filter Chips + 3 Project Cards) */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-color);
        }

        .domain-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .domain-chip {
            padding: 8px 18px;
            border-radius: 999px;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .domain-chip.active, .domain-chip:hover {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        .patents-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .patent-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .patent-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

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

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

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

        .patent-domain-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(26, 75, 136, 0.92);
            color: #FFFFFF;
            padding: 5px 12px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
        }

        .patent-status-tag {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--success-bg);
            color: var(--success-text);
            padding: 5px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 700;
        }

        .patent-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .patent-title {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-main);
            line-height: 1.4;
        }

        .patent-specs {
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            padding: 14px;
            margin-bottom: 16px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            font-size: 13px;
        }

        .spec-item span {
            color: var(--text-muted);
            display: block;
            font-size: 12px;
        }

        .spec-item strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .patent-summary {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            flex: 1;
        }

        .patent-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .patent-price {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
        }

        /* Section 6: 5-Step Process Pipeline */
        .process-pipeline {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-step-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 26px 20px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .process-step-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .step-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }

        .step-badge {
            background: var(--primary);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 999px;
        }

        .step-time {
            font-size: 12px;
            color: var(--secondary);
            font-weight: 600;
        }

        .step-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .step-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* Section 7: Dark Mode Case Study & Vision (#0F172A) */
        .dark-split-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 44px;
            align-items: stretch;
        }

        .dark-case-card {
            background: var(--dark-surface);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .case-tag-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 20px;
        }

        .case-pill {
            background: rgba(14, 165, 233, 0.2);
            color: #38BDF8;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        .case-title {
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .case-narrative {
            font-size: 15px;
            color: #CBD5E1;
            line-height: 1.75;
            margin-bottom: 26px;
        }

        .case-metrics-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            padding: 20px;
            background: rgba(15, 23, 42, 0.65);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 24px;
        }

        .case-metric-val {
            font-size: 24px;
            font-weight: 800;
            color: #38BDF8;
        }

        .case-metric-lbl {
            font-size: 12px;
            color: #94A3B8;
        }

        .case-switcher-btns {
            display: flex;
            gap: 10px;
        }

        .case-switch-btn {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: #CBD5E1;
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition);
        }

        .case-switch-btn.active, .case-switch-btn:hover {
            background: var(--accent);
            color: #FFFFFF;
        }

        .dark-vision-panel {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .dark-vision-panel h2 {
            font-size: 30px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .dark-vision-panel p {
            font-size: 15px;
            color: #94A3B8;
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .vision-check-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .vision-check-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14.5px;
            color: #E2E8F0;
        }

        /* Section 8: User Stories (2-col large cards) */
        .stories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .story-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .story-img-bar {
            height: 220px;
            position: relative;
        }

        .story-img-bar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .story-role-badge {
            position: absolute;
            bottom: 16px;
            left: 20px;
            background: var(--primary);
            color: #FFFFFF;
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
        }

        .story-content {
            padding: 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .story-title {
            font-size: 21px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-main);
        }

        .story-body {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 22px;
            flex: 1;
        }

        .story-quote-footer {
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13.5px;
            color: var(--text-main);
            font-weight: 600;
        }

        /* Section 9: Key Metrics Strip */
        .metrics-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }

        .metric-box {
            padding: 32px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }

        .metric-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.15;
            margin-bottom: 10px;
            letter-spacing: -1px;
        }

        .metric-label {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .metric-note {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* Section 10: Target Audience Matrix (4 vertical columns) */
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .audience-col {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .audience-col:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
        }

        .audience-badge {
            align-self: flex-start;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 6px;
            margin-bottom: 16px;
        }

        .audience-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .audience-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 18px;
            flex: 1;
        }

        .audience-deliverable {
            font-size: 13px;
            padding-top: 14px;
            border-top: 1px dashed var(--border-color);
            color: var(--primary);
            font-weight: 600;
        }

        /* Section 11: Testimonials (3-col verified reviews) */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .review-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .stars-row {
            color: #F59E0B;
            font-size: 16px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .verified-tag {
            font-size: 12px;
            color: var(--success-text);
            background: var(--success-bg);
            padding: 3px 9px;
            border-radius: 6px;
            font-weight: 600;
        }

        .review-text {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 22px;
            flex: 1;
        }

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

        .reviewer-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }

        .reviewer-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
        }

        .reviewer-info span {
            font-size: 12.5px;
            color: var(--text-muted);
        }

        /* Section 12: News Snippets (3-col embedded digest) */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .news-img {
            height: 185px;
            width: 100%;
            object-fit: cover;
        }

        .news-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12.5px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .news-tag {
            color: var(--secondary);
            font-weight: 600;
        }

        .news-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }

        .news-more-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-more-link:hover {
            color: var(--secondary);
            gap: 10px;
        }

        /* Section 13: FAQ Accordion */
        .faq-container {
            max-width: 920px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            width: 100%;
            padding: 22px 26px;
            background: transparent;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            transition: var(--transition);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #FFFFFF;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 26px 24px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--bg-utility);
            padding-top: 16px;
        }

        /* Section 14: Contact CTA & Online Registration */
        .cta-section {
            background: linear-gradient(135deg, #123562 0%, #1A4B88 55%, #0284C7 100%);
            color: #FFFFFF;
            padding: 88px 0;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-info h2 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .cta-info p {
            font-size: 16px;
            color: #E0F2FE;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .cta-trust-badges {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .cta-trust-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.1);
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
        }

        .cta-form-card {
            background: #FFFFFF;
            color: var(--text-main);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
        }

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

        .form-group {
            margin-bottom: 16px;
        }

        .form-label {
            display: block;
            font-size: 13.5px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            height: 46px;
            padding: 0 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            background: var(--bg-light);
            font-size: 14px;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: 0 0 0 3px rgba(26, 75, 136, 0.12);
        }

        .radio-group {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }

        .radio-option {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 12px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 13.5px;
            font-weight: 500;
            cursor: pointer;
            background: var(--bg-light);
        }

        .form-submit-btn {
            width: 100%;
            height: 50px;
            font-size: 16px;
            margin-top: 8px;
        }

        .ssl-notice {
            text-align: center;
            font-size: 12.5px;
            color: var(--text-secondary);
            margin-top: 14px;
        }

        /* Footer */
        .site-footer {
            background-color: #0B1120;
            color: #94A3B8;
            padding: 72px 0 32px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr 1.1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col-title {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a:hover {
            color: #38BDF8;
        }

        .standard-tag-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .standard-tag {
            padding: 8px 12px;
            background: rgba(255, 255, 255, 0.05);
            border-left: 3px solid var(--secondary);
            border-radius: 4px;
            font-size: 12.5px;
            color: #CBD5E1;
        }

        .footer-bottom {
            padding-top: 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
        }

        .footer-icp-links {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .footer-icp-links a:hover {
            color: #FFFFFF;
        }

        /* Responsive Media Queries */
        @media (max-width: 1024px) {
            .hero-content-grid,
            .intro-split,
            .dark-split-grid,
            .cta-grid {
                grid-template-columns: 1fr;
            }

            .pain-grid,
            .metrics-strip,
            .audience-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .advantages-grid,
            .patents-grid,
            .testimonials-grid,
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-pipeline {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 78px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 20px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
                align-items: stretch;
            }

            .main-nav.mobile-open {
                display: flex;
            }

            .mobile-toggle {
                display: inline-flex;
            }
        }

        @media (max-width: 768px) {
            .utility-left span:nth-child(2),
            .utility-right span:last-child {
                display: none;
            }

            .section {
                padding: 56px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .hero-title {
                font-size: 30px;
            }

            .hero-content-grid {
                padding: 28px 20px;
            }

            .hero-search-card {
                grid-template-columns: 1fr;
            }

            .stories-grid,
            .advantages-grid,
            .patents-grid,
            .testimonials-grid,
            .news-grid {
                grid-template-columns: 1fr;
            }

            .compliance-floating-badge {
                position: static;
                margin-top: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .pain-grid,
            .metrics-strip,
            .audience-grid,
            .process-pipeline,
            .footer-grid,
            .form-grid-row,
            .radio-group,
            .case-metrics-row {
                grid-template-columns: 1fr;
            }

            .nav-cta {
                display: none;
            }

            .hero-title {
                font-size: 26px;
            }

            .cta-form-card {
                padding: 24px 18px;
            }
        }