/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #10b981;
            --accent-warning: #f59e0b;
            --accent-danger: #ef4444;
            --bg-main: #f8fafc;
            --bg-surface: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-card: #1e293b;
            --text-heading: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --text-light: #f1f5f9;
            --border-color: #e2e8f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 12px 30px -4px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Top Notification Bar */
        .top-bar {
            background-color: #0b1120;
            color: #94a3b8;
            font-size: 0.8125rem;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-info span {
            margin-right: 1.5rem;
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
        }

        /* Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.375rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: -0.5px;
        }
        .logo i {
            font-size: 1.5rem;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
            align-items: center;
        }
        .nav-links a {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-heading);
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-heading);
            cursor: pointer;
        }

        /* Common Buttons & Badges */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            font-size: 0.9375rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            min-height: 44px;
            border: 1px solid transparent;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
        }
        .btn-secondary {
            background-color: #ffffff;
            color: var(--text-heading);
            border-color: var(--border-color);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-accent {
            background-color: var(--secondary);
            color: #ffffff;
        }
        .btn-accent:hover {
            background-color: #059669;
            transform: translateY(-2px);
        }
        .btn-block {
            width: 100%;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.8125rem;
            font-weight: 700;
            text-transform: uppercase;
        }
        .badge-primary {
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary);
        }
        .badge-accent {
            background: #dcfce7;
            color: #166534;
        }

        /* Section Commons */
        .section {
            padding: 90px 0;
            position: relative;
        }
        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 3.5rem auto;
        }
        .section-title {
            font-size: 2.125rem;
            font-weight: 800;
            color: var(--text-heading);
            margin: 0.75rem 0 1rem;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1.0625rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 1. Hero Section */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #f0fdf4 0%, #eff6ff 100%);
            padding: 90px 0 110px 0;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .hero-banner-bg {
            position: absolute;
            inset: 0;
            opacity: 0.08;
            object-fit: cover;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 3.5rem;
            align-items: center;
        }
        .hero-badge-wrap {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 1.5rem;
        }
        .promo-tag {
            background: #fee2e2;
            color: #b91c1c;
            font-size: 0.75rem;
            font-weight: 800;
            padding: 0.25rem 0.6rem;
            border-radius: 4px;
            border: 1px solid #fca5a5;
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            color: var(--text-heading);
            line-height: 1.2;
            margin-bottom: 1.25rem;
            letter-spacing: -0.5px;
        }
        .hero-desc {
            font-size: 1.125rem;
            color: #475569;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2.5rem;
        }
        .hero-highlights {
            display: flex;
            gap: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(0,0,0,0.06);
        }
        .hero-highlight-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: #475569;
            font-weight: 600;
        }
        .hero-highlight-item i {
            color: var(--secondary);
        }
        .hero-card-preview {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 1.5rem;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            position: relative;
        }
        .hero-card-img {
            border-radius: var(--radius-sm);
            width: 100%;
            height: 320px;
            object-fit: cover;
            margin-bottom: 1.25rem;
        }
        .hero-live-status {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #f8fafc;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
        }

        /* 2. Pain Points Section */
        .pain-section {
            background-color: #ffffff;
        }
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .pain-card {
            background: #f8fafc;
            padding: 2rem 1.5rem;
            border-radius: var(--radius-md);
            border-top: 4px solid var(--accent-danger);
            transition: var(--transition);
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            background: #ffffff;
        }
        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: #fee2e2;
            color: var(--accent-danger);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 1.25rem;
        }
        .pain-card h3 {
            font-size: 1.1875rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 0.75rem;
        }
        .pain-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 3. Core Intro Section */
        .intro-section {
            background-color: #f1f5f9;
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }
        .intro-image-wrap {
            position: relative;
        }
        .intro-image-wrap img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .intro-stat-badge {
            position: absolute;
            bottom: -20px;
            right: -20px;
            background: #ffffff;
            padding: 1.25rem 1.75rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border-left: 4px solid var(--primary);
        }
        .intro-stat-badge strong {
            display: block;
            font-size: 1.5rem;
            color: var(--primary);
            font-weight: 800;
        }
        .intro-stat-badge span {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }
        .intro-content h2 {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-heading);
            margin-bottom: 1.25rem;
            line-height: 1.3;
        }
        .intro-desc-p {
            font-size: 1rem;
            color: var(--text-body);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }
        .intro-specs-list {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .intro-spec-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-heading);
        }
        .intro-spec-item i {
            color: var(--primary);
        }

        /* 4. Features Grid Section */
        .features-section {
            background-color: #ffffff;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .feature-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 2.25rem 2rem;
            border-radius: var(--radius-md);
            transition: var(--transition);
            position: relative;
        }
        .feature-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon-box {
            width: 54px;
            height: 54px;
            border-radius: 12px;
            background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 0.75rem;
        }
        .feature-card p {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 5. Solutions & Pricing Section */
        .solutions-section {
            background-color: #f8fafc;
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            align-items: stretch;
        }
        .solution-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            transition: var(--transition);
        }
        .solution-card.featured {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-lg);
            transform: scale(1.03);
            background: #ffffff;
            z-index: 2;
        }
        .popular-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #ffffff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 1rem;
            border-radius: 9999px;
            letter-spacing: 0.5px;
        }
        .plan-name {
            font-size: 1.375rem;
            font-weight: 800;
            color: var(--text-heading);
            margin-bottom: 0.5rem;
        }
        .plan-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            min-height: 42px;
        }
        .plan-price {
            font-size: 2.25rem;
            font-weight: 900;
            color: var(--text-heading);
            margin-bottom: 1.75rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .plan-price small {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
        }
        .plan-features {
            list-style: none;
            margin-bottom: 2rem;
            flex-grow: 1;
        }
        .plan-features li {
            font-size: 0.875rem;
            color: var(--text-body);
            margin-bottom: 0.875rem;
            display: flex;
            align-items: center;
            gap: 0.625rem;
        }
        .plan-features li i {
            color: var(--secondary);
        }

        /* 6. Dark Philosophy Section */
        .dark-philosophy-section {
            background-color: var(--bg-dark);
            color: var(--text-light);
            padding: 100px 0;
        }
        .dark-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }
        .dark-content h2 {
            font-size: 2.25rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 1.25rem;
            line-height: 1.3;
        }
        .dark-content p {
            color: #94a3b8;
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        .timeline-steps {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .timeline-item {
            display: flex;
            gap: 1.25rem;
            background: var(--bg-dark-card);
            padding: 1.25rem 1.5rem;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.06);
        }
        .timeline-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .timeline-text h4 {
            font-size: 1.0625rem;
            color: #ffffff;
            margin-bottom: 0.25rem;
        }
        .timeline-text p {
            font-size: 0.875rem;
            color: #94a3b8;
            margin-bottom: 0;
            line-height: 1.5;
        }
        .dark-media img {
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.1);
            width: 100%;
            height: 460px;
            object-fit: cover;
        }

        /* 7. Case Study Section */
        .case-section {
            background-color: #ffffff;
        }
        .case-card-large {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            background: #f8fafc;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .case-img-side img {
            width: 100%;
            height: 100%;
            min-height: 400px;
            object-fit: cover;
        }
        .case-info-side {
            padding: 3rem 2.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .case-tag {
            font-size: 0.8125rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }
        .case-title {
            font-size: 1.625rem;
            font-weight: 800;
            color: var(--text-heading);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .case-desc {
            font-size: 0.9375rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        .case-metrics-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
        }
        .case-metric-item strong {
            display: block;
            font-size: 1.75rem;
            color: var(--primary);
            font-weight: 800;
        }
        .case-metric-item span {
            font-size: 0.8125rem;
            color: var(--text-muted);
        }

        /* 8. Metrics Strip Section */
        .metrics-section {
            background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
            color: #ffffff;
            padding: 60px 0;
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .metric-card-item {
            padding: 1.5rem;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.08);
        }
        .metric-num {
            font-size: 2.75rem;
            font-weight: 900;
            color: #38bdf8;
            line-height: 1;
            margin-bottom: 0.75rem;
        }
        .metric-title {
            font-size: 1.0625rem;
            font-weight: 700;
            margin-bottom: 0.375rem;
        }
        .metric-sub {
            font-size: 0.8125rem;
            color: #94a3b8;
        }

        /* 9. Testimonials Section */
        .testimonials-section {
            background-color: #ffffff;
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .testi-card {
            background: #f8fafc;
            padding: 2.25rem 2rem;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .testi-stars {
            color: #f59e0b;
            margin-bottom: 1.25rem;
            font-size: 0.875rem;
        }
        .testi-text {
            font-size: 0.9375rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 1.5rem;
            font-style: italic;
        }
        .testi-author {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding-top: 1.25rem;
            border-top: 1px solid var(--border-color);
        }
        .testi-avatar-placeholder {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-weight: 700;
            font-size: 1rem;
        }
        .testi-name {
            font-weight: 700;
            font-size: 0.9375rem;
            color: var(--text-heading);
        }
        .testi-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 10. Insights Section */
        .insights-section {
            background-color: #f8fafc;
        }
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .insight-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .insight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .insight-thumb {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .insight-body {
            padding: 1.5rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .insight-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 0.75rem;
        }
        .insight-card h3 {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text-heading);
            margin-bottom: 0.75rem;
            line-height: 1.4;
        }
        .insight-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.25rem;
        }
        .insight-link {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
        }

        /* 11. FAQ Accordion Section */
        .faq-section {
            background-color: #ffffff;
        }
        .faq-wrapper {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            background: #ffffff;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.25rem 1.5rem;
            background: none;
            border: none;
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-heading);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.875rem;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: #f8fafc;
        }
        .faq-item.active .faq-answer {
            max-height: 250px;
            padding: 1.25rem 1.5rem;
            border-top: 1px solid var(--border-color);
        }
        .faq-answer p {
            font-size: 0.9375rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* 12. Consultation Section */
        .consultation-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #ffffff;
            padding: 90px 0;
        }
        .consult-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 4rem;
            align-items: center;
        }
        .consult-info h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 1.25rem;
            line-height: 1.3;
        }
        .consult-info p {
            font-size: 1rem;
            color: #94a3b8;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        .trust-badges {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .trust-badge-item {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 0.875rem;
            color: #cbd5e1;
        }
        .trust-badge-item i {
            color: var(--secondary);
            font-size: 1.125rem;
        }
        .consult-form-wrap {
            background: #ffffff;
            color: var(--text-body);
            padding: 2.5rem;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
        }
        .consult-form-wrap h3 {
            font-size: 1.375rem;
            font-weight: 800;
            color: var(--text-heading);
            margin-bottom: 0.5rem;
        }
        .consult-form-wrap p {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }
        .form-group {
            margin-bottom: 1.25rem;
        }
        .form-label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-heading);
            margin-bottom: 0.375rem;
        }
        .form-control {
            width: 100%;
            height: 44px;
            padding: 0.5rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 0.9375rem;
            outline: none;
            transition: var(--transition);
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }
        .form-feedback {
            display: none;
            padding: 0.75rem;
            background: #dcfce7;
            color: #166534;
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
            margin-top: 1rem;
            text-align: center;
        }

        /* Site Footer */
        .site-footer {
            background-color: #0b1120;
            color: #94a3b8;
            padding: 70px 0 30px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 3rem;
            margin-bottom: 3.5rem;
        }
        .footer-logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: #ffffff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .footer-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            font-size: 0.875rem;
            color: #94a3b8;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-contact li {
            font-size: 0.875rem;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.625rem;
        }
        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8125rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid, .intro-grid, .dark-grid, .case-card-large, .consult-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
            .features-grid, .solutions-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pain-grid, .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solution-card.featured {
                transform: none;
            }
        }

        @media (max-width: 768px) {
            .top-bar {
                display: none;
            }
            .section {
                padding: 60px 0;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #ffffff;
                flex-direction: column;
                padding: 1.5rem;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border-color);
            }
            .nav-links.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-title {
                font-size: 2.125rem;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .pain-grid, .features-grid, .solutions-grid, .metrics-grid, .testimonials-grid, .insights-grid, .intro-specs-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
            }
        }