/* roulang page: index */
:root {
      --bg-dark: #0b0f19;
      --bg-dark-alt: #111827;
      --bg-card: rgba(17, 24, 39, 0.72);
      --bg-card-hover: rgba(26, 35, 54, 0.88);
      --primary: #2563eb;
      --primary-hover: #1d4ed8;
      --accent: #06b6d4;
      --accent-glow: rgba(6, 182, 212, 0.35);
      --text-main: #f8fafc;
      --text-sub: #cbd5e1;
      --text-muted: #94a3b8;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(6, 182, 212, 0.6);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: var(--font-stack);
      font-size: 16px;
      line-height: 1.65;
    }

    body {
      background-color: var(--bg-dark);
      overflow-x: hidden;
      min-width: 320px;
    }

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

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

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

    /* Top Information Bar */
    .top-bar {
      background: #060911;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .status-badge-dot {
      width: 8px;
      height: 8px;
      background-color: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10b981;
    }

    /* Sticky Navbar */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(11, 15, 25, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      font-size: 20px;
      letter-spacing: 0.5px;
      color: #ffffff;
    }
    .logo-emblem {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      box-shadow: 0 0 16px var(--accent-glow);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      color: var(--text-sub);
      font-size: 15px;
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--accent);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 24px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
      min-height: 44px;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #1e40af);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, #3b82f6, var(--primary));
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.55);
      transform: translateY(-2px);
    }
    .btn-glow {
      background: linear-gradient(135deg, #0284c7, var(--accent));
      color: #ffffff;
      box-shadow: 0 0 18px var(--accent-glow);
    }
    .btn-glow:hover {
      box-shadow: 0 0 26px rgba(6, 182, 212, 0.7);
      transform: translateY(-2px);
      color: #fff;
    }
    .btn-outline {
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-main);
      border: 1px solid rgba(255, 255, 255, 0.16);
      backdrop-filter: blur(6px);
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: var(--accent);
      color: var(--accent);
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      font-size: 24px;
      cursor: pointer;
      width: 44px;
      height: 44px;
    }

    /* Section Global Styles */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-dark-alt);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-head {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--accent);
      background: rgba(6, 182, 212, 0.1);
      border: 1px solid rgba(6, 182, 212, 0.28);
      padding: 5px 14px;
      border-radius: 99px;
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      color: #ffffff;
      line-height: 1.35;
      margin-bottom: 18px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. Hero Section */
    .hero-section {
      padding: 70px 0 100px 0;
      background: radial-gradient(circle at 50% 20%, rgba(37, 99, 235, 0.18), transparent 60%),
                  radial-gradient(circle at 85% 40%, rgba(6, 182, 212, 0.12), transparent 45%),
                  var(--bg-dark);
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      align-items: center;
      gap: 48px;
    }
    .hero-badge-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }
    .hero-tag {
      background: rgba(37, 99, 235, 0.2);
      border: 1px solid rgba(59, 130, 246, 0.4);
      color: #60a5fa;
      font-size: 13px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: 99px;
    }
    .hero-subtag {
      font-size: 13px;
      color: var(--text-muted);
    }
    .hero-title {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      color: #ffffff;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      background: linear-gradient(135deg, #60a5fa, var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-paragraph {
      font-size: 17px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 36px;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      padding-top: 28px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .hero-stat-card strong {
      display: block;
      font-size: 26px;
      font-weight: 800;
      color: #ffffff;
    }
    .hero-stat-card span {
      font-size: 13px;
      color: var(--text-muted);
    }
    .hero-visual-card {
      position: relative;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
      backdrop-filter: blur(12px);
    }
    .hero-img-box {
      position: relative;
      width: 100%;
      height: 380px;
      overflow: hidden;
    }
    .hero-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }
    .hero-visual-card:hover .hero-img-box img {
      transform: scale(1.03);
    }
    .hero-visual-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(11, 15, 25, 0.95) 10%, transparent 60%);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 24px;
    }
    .visual-overlay-title {
      font-size: 17px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 6px;
    }
    .visual-overlay-sub {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 2. Overview Section */
    .overview-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 54px;
      align-items: center;
    }
    .overview-img-wrap {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
    }
    .overview-img-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .overview-badge-float {
      position: absolute;
      bottom: 24px;
      left: 24px;
      background: rgba(11, 15, 25, 0.85);
      border: 1px solid var(--accent);
      padding: 14px 20px;
      border-radius: var(--radius-md);
      backdrop-filter: blur(12px);
      box-shadow: 0 0 20px var(--accent-glow);
    }
    .overview-badge-float h5 {
      font-size: 15px;
      color: var(--accent);
      font-weight: 700;
    }
    .overview-badge-float p {
      font-size: 13px;
      color: var(--text-sub);
      margin-top: 4px;
    }
    .overview-content h3 {
      font-size: 28px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 20px;
      line-height: 1.4;
    }
    .overview-content p {
      font-size: 16px;
      color: var(--text-sub);
      margin-bottom: 20px;
      line-height: 1.8;
    }
    .check-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr;
      gap: 14px;
      margin-top: 24px;
    }
    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 15px;
      color: var(--text-sub);
    }
    .check-icon {
      flex-shrink: 0;
      width: 22px;
      height: 22px;
      background: rgba(6, 182, 212, 0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 13px;
      font-weight: bold;
    }

    /* 3. Core Modules Grid (2x3) */
    .modules-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .module-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
      backdrop-filter: blur(10px);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }
    .module-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, transparent, var(--accent), transparent);
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .module-card:hover {
      transform: translateY(-5px);
      border-color: rgba(6, 182, 212, 0.4);
      background: var(--bg-card-hover);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 15px var(--accent-glow);
    }
    .module-card:hover::before {
      opacity: 1;
    }
    .module-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      background: rgba(6, 182, 212, 0.12);
      padding: 4px 10px;
      border-radius: 6px;
      margin-bottom: 16px;
    }
    .module-title {
      font-size: 20px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .module-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .module-footer-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 12px;
      color: var(--text-muted);
    }
    .module-meta-tag {
      background: rgba(255, 255, 255, 0.05);
      padding: 3px 8px;
      border-radius: 4px;
      color: var(--text-sub);
    }

    /* 4. Products & Editions */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      align-items: stretch;
    }
    .plan-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 38px 30px;
      display: flex;
      flex-direction: column;
      position: relative;
      transition: var(--transition);
    }
    .plan-card.featured {
      background: linear-gradient(180deg, rgba(37, 99, 235, 0.15), rgba(17, 24, 39, 0.85));
      border-color: var(--primary);
      box-shadow: 0 0 28px rgba(37, 99, 235, 0.35);
      transform: scale(1.02);
    }
    .featured-label {
      position: absolute;
      top: -13px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, var(--primary), var(--accent));
      color: #ffffff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 99px;
      letter-spacing: 1px;
    }
    .plan-name {
      font-size: 22px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }
    .plan-target {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 24px;
      min-height: 42px;
    }
    .plan-features {
      list-style: none;
      margin: 24px 0 36px 0;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .plan-features li {
      font-size: 14px;
      color: var(--text-sub);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .plan-features li::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }

    /* 5. Methodology & Training Process */
    .steps-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      margin-top: 20px;
    }
    .timeline-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 22px;
      position: relative;
    }
    .timeline-step-num {
      width: 44px;
      height: 44px;
      background: rgba(37, 99, 235, 0.15);
      border: 1px solid var(--primary);
      color: #60a5fa;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 17px;
      margin-bottom: 18px;
    }
    .timeline-title {
      font-size: 18px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }
    .timeline-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 6. Scenarios */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .scenario-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      border-color: rgba(6, 182, 212, 0.3);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    }
    .scenario-img-box {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .scenario-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .scenario-card:hover .scenario-img-box img {
      transform: scale(1.05);
    }
    .scenario-body {
      padding: 24px;
    }
    .scenario-tag {
      font-size: 12px;
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 8px;
      display: inline-block;
    }
    .scenario-title {
      font-size: 19px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 10px;
    }
    .scenario-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .scenario-highlight {
      font-size: 13px;
      color: #60a5fa;
      font-weight: 500;
      border-top: 1px dashed rgba(255, 255, 255, 0.1);
      padding-top: 12px;
    }

    /* 7. Key Performance Metrics Bar */
    .metrics-section {
      background: linear-gradient(135deg, #0d1527 0%, #060e20 100%);
      border-top: 1px solid rgba(6, 182, 212, 0.2);
      border-bottom: 1px solid rgba(6, 182, 212, 0.2);
      padding: 64px 0;
    }
    .metrics-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-item {
      padding: 10px 16px;
      position: relative;
    }
    .metric-number {
      font-size: 42px;
      font-weight: 800;
      color: #ffffff;
      letter-spacing: -1px;
      margin-bottom: 6px;
      background: linear-gradient(180deg, #ffffff, #93c5fd);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .metric-number span {
      font-size: 26px;
      color: var(--accent);
      -webkit-text-fill-color: var(--accent);
    }
    .metric-label {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-sub);
      margin-bottom: 4px;
    }
    .metric-sub {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 8. Testimonials */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      backdrop-filter: blur(8px);
      transition: var(--transition);
    }
    .testimonial-card:hover {
      border-color: rgba(6, 182, 212, 0.35);
      transform: translateY(-4px);
    }
    .stars {
      color: #f59e0b;
      margin-bottom: 16px;
      font-size: 16px;
      letter-spacing: 2px;
    }
    .testimonial-quote {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 14px;
      padding-top: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .author-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 16px;
    }
    .author-info h6 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
    }
    .author-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 9. News Section */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .news-card:hover {
      border-color: rgba(37, 99, 235, 0.45);
      transform: translateY(-4px);
    }
    .news-img {
      height: 190px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-img img {
      transform: scale(1.05);
    }
    .news-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-meta {
      font-size: 12px;
      color: var(--accent);
      margin-bottom: 10px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: #ffffff;
      line-height: 1.45;
      margin-bottom: 12px;
    }
    .news-excerpt {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: #60a5fa;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 10. FAQ Accordion */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: rgba(6, 182, 212, 0.4);
      background: var(--bg-card-hover);
    }
    .faq-question {
      padding: 20px 24px;
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      color: #ffffff;
      font-size: 16px;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      transition: transform 0.3s ease;
      font-size: 12px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(180deg);
      background: var(--accent);
      color: #0b0f19;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      color: var(--text-sub);
      font-size: 14px;
      line-height: 1.75;
      padding: 0 24px;
    }
    .faq-item.active .faq-answer {
      max-height: 260px;
      padding: 0 24px 22px 24px;
    }

    /* 11. Security & Compliance Guarantee Bar */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      text-align: center;
      transition: var(--transition);
    }
    .guarantee-card:hover {
      border-color: rgba(37, 99, 235, 0.35);
      background: var(--bg-card-hover);
    }
    .guarantee-icon-wrap {
      width: 52px;
      height: 52px;
      margin: 0 auto 16px auto;
      background: rgba(37, 99, 235, 0.12);
      border: 1px solid rgba(59, 130, 246, 0.3);
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #60a5fa;
      font-size: 20px;
    }
    .guarantee-title {
      font-size: 16px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
    }
    .guarantee-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. Bottom Contact & Demo CTA */
    .cta-banner {
      background: linear-gradient(135deg, rgba(37, 99, 235, 0.22) 0%, rgba(6, 182, 212, 0.12) 100%),
                  var(--bg-dark-alt);
      border: 1px solid rgba(6, 182, 212, 0.3);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    }
    .cta-inner-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .cta-info h3 {
      font-size: 32px;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.35;
      margin-bottom: 18px;
    }
    .cta-info p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .cta-direct-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .cta-direct-list li {
      font-size: 14px;
      color: var(--text-sub);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .form-box {
      background: rgba(11, 15, 25, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 32px;
      backdrop-filter: blur(12px);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-sub);
      margin-bottom: 8px;
    }
    .form-input {
      width: 100%;
      height: 46px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 0 16px;
      color: #ffffff;
      font-size: 14px;
      transition: var(--transition);
      outline: none;
    }
    .form-input:focus {
      border-color: var(--accent);
      box-shadow: 0 0 12px var(--accent-glow);
      background: rgba(255, 255, 255, 0.08);
    }
    .form-submit-btn {
      width: 100%;
      margin-top: 8px;
    }

    /* Footer */
    .site-footer {
      background: #070a12;
      border-top: 1px solid var(--border-color);
      padding: 72px 0 32px 0;
      color: var(--text-muted);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 48px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.75;
      color: var(--text-muted);
      max-width: 320px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 13px;
    }
    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
    }
    .footer-bottom-links {
      display: flex;
      gap: 20px;
    }

    /* Responsive Breakpoints */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .overview-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .modules-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .pricing-grid {
        grid-template-columns: 1fr;
      }
      .plan-card.featured {
        transform: none;
      }
      .scenarios-grid, .news-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-inner-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .site-header {
        height: auto;
      }
      .nav-container {
        height: 64px;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-menu {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #0b0f19;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid var(--border-color);
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .nav-actions {
        display: none;
      }
      .hero-title {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .modules-grid, .scenarios-grid, .news-grid, .testimonials-grid, .guarantee-grid, .steps-timeline {
        grid-template-columns: 1fr;
      }
      .metrics-row {
        grid-template-columns: 1fr;
      }
      .hero-stats-row {
        grid-template-columns: 1fr;
        gap: 14px;
      }
      .cta-banner {
        padding: 32px 20px;
      }
      .form-box {
        padding: 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }