/* roulang page: index */
:root {
      --primary: #111927;
      --primary-slate: #1e293b;
      --primary-light: #334155;
      --accent: #0d9488;
      --accent-light: #14b8a6;
      --accent-pale: #ccfbf1;
      --cta: #ea580c;
      --cta-hover: #c2410c;
      --cta-light: #ffedd5;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --border-dark: #334155;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --shadow-soft: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.12);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      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;
    }

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    /* Top Bar */
    .top-bar {
      background-color: var(--primary);
      color: #94a3b8;
      font-size: 0.8125rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 8px 0;
    }
    .top-bar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .top-bar-left, .top-bar-right {
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .top-bar-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .top-bar-item i {
      color: var(--accent-light);
    }

    /* Main Nav */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.375rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.02em;
    }
    .logo-symbol {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--accent) 0%, #065f46 100%);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      font-size: 1.25rem;
      box-shadow: 0 4px 10px rgba(13, 148, 136, 0.25);
    }
    .brand-text-sub {
      font-size: 0.75rem;
      display: block;
      color: var(--accent);
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      line-height: 1;
      margin-top: 3px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .nav-link {
      font-size: 0.9375rem;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link:hover::after, .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--accent);
      border-radius: 2px;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 20px;
      font-size: 0.875rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      line-height: 1.2;
      text-align: center;
      min-height: 42px;
    }
    .btn-cta {
      background-color: var(--cta);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(234, 88, 12, 0.3);
    }
    .btn-cta:hover {
      background-color: var(--cta-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(234, 88, 12, 0.4);
      color: #ffffff;
    }
    .btn-outline {
      border-color: var(--border-color);
      background-color: #ffffff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      background-color: var(--bg-alt);
      transform: translateY(-2px);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #ffffff;
    }
    .btn-accent:hover {
      background-color: #0b7a70;
      transform: translateY(-2px);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 8px;
    }

    /* Section Base */
    .section-spacing {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }
    .section-header-left {
      text-align: left;
      margin-bottom: 36px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      background-color: var(--accent-pale);
      color: var(--accent);
      font-size: 0.8125rem;
      font-weight: 700;
      border-radius: 9999px;
      margin-bottom: 12px;
      letter-spacing: 0.04em;
    }
    .section-title {
      font-size: 2.125rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Hero Section */
    .hero-section {
      background: linear-gradient(180deg, #ffffff 0%, var(--bg-alt) 100%);
      padding: 60px 0 80px 0;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.03em;
    }
    .hero-h1 span {
      color: var(--accent);
    }
    .hero-summary {
      font-size: 1.0625rem;
      color: var(--text-muted);
      margin-bottom: 28px;
      line-height: 1.75;
    }
    .hero-badges-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 32px;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--primary-slate);
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    }
    .hero-tag i {
      color: var(--accent);
    }
    .hero-btn-group {
      display: flex;
      gap: 16px;
      margin-bottom: 32px;
    }

    /* Comparison Card within Hero */
    .hero-tier-card {
      background-color: #ffffff;
      border: 2px solid var(--accent);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 0 12px 32px -4px rgba(13, 148, 136, 0.18);
      position: relative;
    }
    .tier-recommend-badge {
      position: absolute;
      top: -14px;
      right: 28px;
      background: linear-gradient(135deg, var(--cta) 0%, #f97316 100%);
      color: #ffffff;
      padding: 4px 14px;
      font-size: 0.75rem;
      font-weight: 700;
      border-radius: 9999px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      box-shadow: 0 3px 8px rgba(234, 88, 12, 0.35);
    }
    .tier-header {
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
      margin-bottom: 20px;
    }
    .tier-title {
      font-size: 1.375rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .tier-sub {
      font-size: 0.875rem;
      color: var(--text-muted);
    }
    .tier-feature-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 24px;
    }
    .tier-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.875rem;
      color: var(--primary-slate);
    }
    .tier-feature-item i {
      color: var(--accent);
      margin-top: 3px;
      font-size: 0.875rem;
    }

    /* Section 2: Pain Points */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .pain-card {
      background-color: var(--bg-card);
      border: 1px solid #fee2e2;
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: var(--transition);
    }
    .pain-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background-color: #ef4444;
    }
    .pain-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .pain-icon-wrapper {
      width: 44px;
      height: 44px;
      background-color: #fef2f2;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #ef4444;
      font-size: 1.25rem;
      margin-bottom: 16px;
    }
    .pain-title {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .pain-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Section 3: Architecture & Tech Matrix */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-graphic {
      background-color: var(--primary);
      border-radius: var(--radius-lg);
      padding: 30px;
      color: #ffffff;
      position: relative;
      overflow: hidden;
    }
    .arch-layer {
      background-color: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .arch-layer:last-child {
      margin-bottom: 0;
    }
    .arch-layer-icon {
      width: 42px;
      height: 42px;
      background-color: var(--accent);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.125rem;
      color: #ffffff;
      flex-shrink: 0;
    }
    .arch-layer-info h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 4px;
      color: #f8fafc;
    }
    .arch-layer-info p {
      font-size: 0.8125rem;
      color: #94a3b8;
      line-height: 1.4;
    }
    .param-pill-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 24px;
    }
    .param-pill {
      background-color: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 6px 12px;
      font-size: 0.8125rem;
      color: var(--primary-slate);
      font-weight: 600;
    }

    /* Section 4: 6 Core Advantages */
    .core-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .core-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: var(--transition);
      box-shadow: var(--shadow-soft);
      position: relative;
    }
    .core-card:hover {
      border-color: var(--accent-light);
      transform: translateY(-4px);
      box-shadow: 0 10px 24px -2px rgba(13, 148, 136, 0.15);
    }
    .core-icon-box {
      width: 50px;
      height: 50px;
      background: linear-gradient(135deg, #ecfdf5 0%, var(--accent-pale) 100%);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 1.375rem;
      margin-bottom: 20px;
    }
    .core-card-title {
      font-size: 1.1875rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .core-card-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* Section 5: Hardware & Product Matrix */
    .prod-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .prod-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      display: flex;
      flex-direction: column;
    }
    .prod-image-wrap {
      height: 190px;
      overflow: hidden;
      position: relative;
      background-color: #e2e8f0;
    }
    .prod-image-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .prod-card:hover .prod-image-wrap img {
      transform: scale(1.04);
    }
    .prod-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .prod-tag {
      align-self: flex-start;
      font-size: 0.75rem;
      padding: 3px 8px;
      background-color: var(--bg-alt);
      color: var(--accent);
      font-weight: 700;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .prod-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .prod-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }
    .prod-spec-table {
      width: 100%;
      font-size: 0.8125rem;
      margin-bottom: 20px;
      border-top: 1px solid var(--border-color);
    }
    .prod-spec-row {
      display: flex;
      justify-content: space-between;
      padding: 6px 0;
      border-bottom: 1px solid #f1f5f9;
      color: var(--text-muted);
    }
    .prod-spec-key {
      color: var(--text-light);
    }
    .prod-footer {
      margin-top: auto;
    }

    /* Section 6: Steps / Timeline */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
    }
    .step-badge {
      width: 36px;
      height: 36px;
      background-color: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9375rem;
      margin-bottom: 16px;
    }
    .step-title {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .step-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Section 7: Dark Insights & Monitor Dashboard Mock */
    .dark-section {
      background-color: #0b0f17;
      color: #f8fafc;
      padding: 80px 0;
    }
    .dark-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .dashboard-mockup {
      background-color: #161f2e;
      border: 1px solid #233247;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .dash-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #233247;
      padding-bottom: 14px;
      margin-bottom: 18px;
    }
    .dash-status {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8125rem;
      color: #34d399;
    }
    .dash-status-dot {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10b981;
    }
    .dash-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 20px;
    }
    .dash-stat-box {
      background-color: #0d1420;
      border-radius: var(--radius-sm);
      padding: 12px;
      border: 1px solid #1e293b;
    }
    .dash-stat-label {
      font-size: 0.75rem;
      color: #94a3b8;
      margin-bottom: 4px;
    }
    .dash-stat-value {
      font-size: 1.25rem;
      font-weight: 700;
      color: #38bdf8;
    }
    .dash-map-visual {
      height: 180px;
      background: radial-gradient(circle, rgba(13,148,136,0.15) 0%, rgba(11,15,23,0.8) 100%), url('/assets/images/cb06411540e5391d.webp') center/cover no-repeat;
      border-radius: var(--radius-sm);
      position: relative;
      border: 1px solid #1e293b;
      display: flex;
      align-items: flex-end;
      padding: 14px;
    }
    .dash-map-overlay {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(4px);
      padding: 8px 12px;
      border-radius: 4px;
      font-size: 0.75rem;
      color: #cbd5e1;
      border: 1px solid #334155;
    }

    /* Section 8: Case Studies */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .case-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
    }
    .case-img-wrap {
      height: 180px;
      overflow: hidden;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-content {
      padding: 24px;
    }
    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent);
      background-color: var(--accent-pale);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
    }
    .case-title {
      font-size: 1.1875rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .case-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .case-data-badges {
      display: flex;
      gap: 12px;
      border-top: 1px dashed var(--border-color);
      padding-top: 12px;
    }
    .case-badge-item {
      font-size: 0.8125rem;
      color: var(--primary-slate);
      font-weight: 600;
    }
    .case-badge-item span {
      color: var(--cta);
      font-weight: 700;
    }

    /* Section 9: Metrics Bar */
    .metrics-strip {
      background: linear-gradient(135deg, var(--primary) 0%, #1a2332 100%);
      padding: 50px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-card {
      padding: 10px;
    }
    .metric-number {
      font-size: 2.75rem;
      font-weight: 800;
      color: #38bdf8;
      line-height: 1.1;
      margin-bottom: 8px;
      letter-spacing: -0.02em;
    }
    .metric-number span {
      font-size: 1.5rem;
      color: var(--accent-light);
    }
    .metric-title {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 0.8125rem;
      color: #94a3b8;
    }

    /* Section 10: Testimonials */
    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-soft);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-stars {
      color: #eab308;
      font-size: 0.875rem;
      margin-bottom: 14px;
      display: flex;
      gap: 3px;
    }
    .testi-quote {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .testi-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 16px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-alt);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.125rem;
      border: 1px solid var(--border-color);
    }
    .testi-meta h4 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--primary);
    }
    .testi-meta p {
      font-size: 0.75rem;
      color: var(--text-light);
    }

    /* Section 11: News & Insights */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-soft);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent);
    }
    .news-date {
      font-size: 0.75rem;
      color: var(--text-light);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .news-heading {
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .news-action {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--accent);
      cursor: pointer;
    }

    /* Section 12: FAQ Accordion */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: var(--accent);
      box-shadow: 0 4px 14px rgba(13, 148, 136, 0.08);
    }
    .faq-trigger {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      outline: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary);
    }
    .faq-icon {
      font-size: 0.875rem;
      color: var(--text-light);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
      color: var(--accent);
    }
    .faq-panel {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      padding: 0 24px;
      background-color: #fbfcfe;
    }
    .faq-item.active .faq-panel {
      max-height: 300px;
      padding-bottom: 20px;
      transition: max-height 0.3s ease-in-out;
    }
    .faq-text {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    /* Section 13: Lead CTA & Booking Form */
    .cta-lead-wrap {
      background: linear-gradient(135deg, #111927 0%, #1e293b 100%);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.3);
      color: #ffffff;
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .cta-title {
      font-size: 2rem;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .cta-subtitle {
      font-size: 1rem;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-commitments {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .cta-commit-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9375rem;
      color: #e2e8f0;
    }
    .cta-commit-item i {
      color: var(--accent-light);
    }
    .lead-form-card {
      background-color: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px;
      color: var(--text-main);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    }
    .lead-form-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .lead-form-desc {
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 0.8125rem;
      font-weight: 600;
      color: var(--primary-slate);
      margin-bottom: 6px;
    }
    .form-input, .form-select {
      width: 100%;
      height: 42px;
      padding: 8px 12px;
      font-size: 0.875rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: var(--transition);
      background-color: #ffffff;
      color: var(--text-main);
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
    }
    .form-submit-btn {
      width: 100%;
      height: 46px;
      font-size: 1rem;
      font-weight: 700;
      margin-top: 8px;
    }

    /* Footer */
    .site-footer {
      background-color: #0b0f17;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.875rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr 0.9fr 1fr 0.8fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 14px;
    }
    .footer-about {
      font-size: 0.8125rem;
      line-height: 1.7;
      color: #94a3b8;
      margin-bottom: 16px;
    }
    .footer-heading {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
      letter-spacing: 0.02em;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent-light);
    }
    .footer-contact-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 10px;
      font-size: 0.8125rem;
      line-height: 1.5;
    }
    .footer-contact-item i {
      color: var(--accent-light);
      margin-top: 3px;
    }
    .trust-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 12px;
    }
    .trust-tag {
      font-size: 0.75rem;
      background-color: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 4px 8px;
      border-radius: 4px;
      color: #cbd5e1;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.75rem;
    }

    /* Mobile Drawer */
    .mobile-drawer {
      position: fixed;
      top: 0;
      right: -100%;
      width: 280px;
      height: 100vh;
      background-color: #ffffff;
      z-index: 2000;
      box-shadow: -4px 0 20px rgba(0,0,0,0.15);
      transition: right 0.3s ease;
      display: flex;
      flex-direction: column;
      padding: 24px;
    }
    .mobile-drawer.active {
      right: 0;
    }
    .drawer-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.5);
      z-index: 1999;
      display: none;
    }
    .drawer-overlay.active {
      display: block;
    }
    .drawer-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border-color);
    }
    .drawer-close {
      background: none;
      border: none;
      font-size: 1.25rem;
      color: var(--text-muted);
      cursor: pointer;
    }
    .drawer-links {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .drawer-link {
      font-size: 1rem;
      font-weight: 600;
      color: var(--primary-slate);
    }

    /* Responsive Breakpoints */
    @media (max-width: 1024px) {
      .hero-grid, .arch-grid, .dark-grid, .cta-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .pain-grid, .steps-grid, .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .core-grid, .prod-grid, .case-grid, .testi-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu, .header-cta-btn {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .section-title {
        font-size: 1.625rem;
      }
      .pain-grid, .steps-grid, .metrics-grid, .core-grid, .prod-grid, .case-grid, .testi-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-lead-wrap {
        padding: 30px 20px;
      }
    }