:root {
      --bg-base: #F8FAFC;
      --bg-surface: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      
      /* Neon Fluorescent Accent Colors for Light Theme */
      --neon-cyan: #00F2FE;
      --neon-blue: #4FACFE;
      --neon-purple: #7928CA;
      --neon-pink: #FF0080;
      --neon-lime: #10B981;
      
      --grad-neon-1: linear-gradient(135deg, #00F2FE 0%, #4FACFE 100%);
      --grad-neon-2: linear-gradient(135deg, #7928CA 0%, #FF0080 100%);
      --grad-surface: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(248,250,252,0.95) 100%);

      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
      --shadow-neon: 0 10px 30px -5px rgba(121, 40, 202, 0.15), 0 4px 15px -2px rgba(0, 242, 254, 0.15);
      --shadow-hover: 0 20px 35px -5px rgba(0, 0, 0, 0.08), 0 8px 20px -2px rgba(121, 40, 202, 0.18);
      
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      
      --container-max: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background: var(--bg-base);
      background-image: 
        radial-gradient(circle at 10% 5%, rgba(0, 242, 254, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 40%, rgba(255, 0, 128, 0.06) 0%, transparent 45%),
        radial-gradient(circle at 50% 80%, rgba(121, 40, 202, 0.05) 0%, transparent 50%);
      background-attachment: fixed;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    .ai-container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Standardized Card & Glowing Elements */
    .ai-card {
      background: var(--bg-surface);
      border: 1px solid rgba(121, 40, 202, 0.12);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      overflow: hidden;
    }

    .ai-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 242, 254, 0.35);
    }

    .ai-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--grad-neon-1);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .ai-card:hover::before {
      opacity: 1;
    }

    /* Header & Navigation */
    .ai-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

    .ai-nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .ai-nav-links {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }

    .ai-nav-links a {
      font-weight: 500;
      font-size: 15px;
      color: var(--text-muted);
    }

    .ai-nav-links a:hover, .ai-nav-links a.active {
      color: #7928CA;
      font-weight: 600;
    }

    .ai-header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .ai-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      border: none;
      transition: all 0.3s ease;
      white-space: nowrap;
    }

    .ai-btn-primary {
      background: var(--grad-neon-2);
      color: #FFFFFF;
      box-shadow: 0 4px 15px rgba(255, 0, 128, 0.3);
    }

    .ai-btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(255, 0, 128, 0.45);
      color: #FFFFFF;
    }

    .ai-btn-accent {
      background: var(--grad-neon-1);
      color: #0F172A;
      box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
    }

    .ai-btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(0, 242, 254, 0.45);
    }

    .ai-btn-outline {
      background: transparent;
      border: 1.5px solid rgba(121, 40, 202, 0.4);
      color: var(--text-main);
    }

    .ai-btn-outline:hover {
      background: rgba(121, 40, 202, 0.05);
      border-color: #7928CA;
      color: #7928CA;
    }

    .ai-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Section Global Headers */
    .ai-section-title-wrap {
      text-align: center;
      margin-bottom: 48px;
    }

    .ai-badge {
      display: inline-block;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      background: rgba(121, 40, 202, 0.08);
      border: 1px solid rgba(121, 40, 202, 0.2);
      color: #7928CA;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .ai-section-h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }

    .ai-section-h2 span {
      background: var(--grad-neon-2);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .ai-section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    /* HERO SECTION - NO IMAGES AT ALL */
    .ai-hero-section {
      padding: 80px 0 60px;
      position: relative;
    }

    .ai-hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .ai-hero-h1 {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .ai-hero-h1 .neon-text {
      background: linear-gradient(135deg, #00F2FE 0%, #7928CA 50%, #FF0080 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .ai-hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.7;
    }

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

    .ai-hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .ai-stat-card {
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(0, 242, 254, 0.25);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .ai-stat-num {
      font-size: 32px;
      font-weight: 800;
      background: var(--grad-neon-2);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 4px;
    }

    .ai-stat-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* Model Badges Tag Cloud */
    .ai-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .ai-tag {
      background: #FFFFFF;
      border: 1px solid rgba(226, 232, 240, 0.9);
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: 0 2px 5px rgba(0,0,0,0.02);
      transition: all 0.2s ease;
    }

    .ai-tag:hover {
      border-color: #00F2FE;
      color: #7928CA;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0, 242, 254, 0.2);
    }

    .ai-tag-highlight {
      background: rgba(121, 40, 202, 0.06);
      border-color: rgba(121, 40, 202, 0.3);
      color: #7928CA;
    }

    /* Section Spacing */
    .ai-section {
      padding: 64px 0;
    }

    /* Grid Layouts */
    .ai-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .ai-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    /* Feature Icon Box */
    .ai-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--grad-neon-1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0F172A;
      font-weight: 800;
      font-size: 20px;
      margin-bottom: 16px;
    }

    .ai-icon-purple {
      background: var(--grad-neon-2);
      color: #FFFFFF;
    }

    /* Process Steps Timeline */
    .ai-process-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .ai-step-card {
      background: var(--bg-surface);
      border: 1px solid rgba(226, 232, 240, 0.8);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      position: relative;
      text-align: center;
    }

    .ai-step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--grad-neon-2);
      color: #FFF;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px;
      font-size: 14px;
    }

    .ai-step-title {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .ai-step-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Comparison Section & Table */
    .ai-comparison-badge-box {
      background: linear-gradient(135deg, rgba(121, 40, 202, 0.05) 0%, rgba(0, 242, 254, 0.05) 100%);
      border: 1px solid rgba(121, 40, 202, 0.2);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-bottom: 32px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 16px;
    }

    .ai-rating-item {
      text-align: center;
    }

    .ai-rating-val {
      font-size: 28px;
      font-weight: 900;
      color: #FF0080;
    }

    .ai-rating-stars {
      color: #F59E0B;
      font-size: 20px;
      letter-spacing: 2px;
    }

    .ai-table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid rgba(226, 232, 240, 0.9);
      box-shadow: var(--shadow-sm);
      background: #FFFFFF;
    }

    .ai-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .ai-table th, .ai-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #F1F5F9;
    }

    .ai-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--text-main);
    }

    .ai-table tr:hover {
      background: rgba(0, 242, 254, 0.02);
    }

    .ai-table .highlight-col {
      background: rgba(121, 40, 202, 0.03);
      font-weight: 600;
      color: #7928CA;
    }

    /* Interactive Requirement Selector */
    .ai-selector-box {
      background: #FFFFFF;
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-neon);
    }

    .ai-form-group {
      margin-bottom: 20px;
    }

    .ai-form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .ai-form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid #CBD5E1;
      font-size: 14px;
      outline: none;
      transition: border-color 0.2s ease;
      background: #FAFAFA;
    }

    .ai-form-control:focus {
      border-color: #7928CA;
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(121, 40, 202, 0.1);
    }

    textarea.ai-form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* FAQ Accordion */
    .ai-faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }

    .ai-faq-item {
      background: #FFFFFF;
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }

    .ai-faq-item.active {
      border-color: #7928CA;
      box-shadow: 0 4px 15px rgba(121, 40, 202, 0.08);
    }

    .ai-faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 16px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .ai-faq-question::after {
      content: '+';
      font-size: 20px;
      color: #7928CA;
      transition: transform 0.2s ease;
    }

    .ai-faq-item.active .ai-faq-question::after {
      content: '−';
    }

    .ai-faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .ai-faq-item.active .ai-faq-answer {
      max-height: 300px;
      padding: 0 24px 20px;
    }

    /* Reviews Cards */
    .ai-review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
    }

    .ai-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--grad-neon-1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #0F172A;
    }

    /* Images Styling */
    .ai-media-frame {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: var(--shadow-sm);
      margin-top: 16px;
    }

    .ai-page-image {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    /* Footer */
    .ai-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 60px 0 30px;
      border-top: 1px solid #1E293B;
      font-size: 14px;
    }

    .ai-footer a {
      color: #CBD5E1;
    }

    .ai-footer a:hover {
      color: #00F2FE;
    }

    .ai-footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .ai-footer-h4 {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .ai-footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .ai-footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
    }

    .ai-friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 12px;
      justify-content: center;
    }

    .ai-friend-links a {
      color: #94A3B8;
      font-size: 13px;
    }

    /* Floating Widget */
    .ai-float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .ai-float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--grad-neon-2);
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(255, 0, 128, 0.4);
      cursor: pointer;
      font-size: 20px;
      border: none;
      transition: transform 0.2s ease;
    }

    .ai-float-btn:hover {
      transform: scale(1.1);
    }

    /* Responsive */
    @media (max-width: 992px) {
      .ai-hero-h1 { font-size: 30px; }
      .ai-grid-4, .ai-process-steps { grid-template-columns: repeat(2, 1fr); }
      .ai-grid-3 { grid-template-columns: repeat(2, 1fr); }
      .ai-footer-grid { grid-template-columns: 1fr 1fr; }
      .ai-hero-stats { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .ai-nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        border-bottom: 1px solid #E2E8F0;
      }
      .ai-nav-links.active { display: flex; }
      .ai-menu-toggle { display: block; }
      .ai-grid-2, .ai-grid-3, .ai-grid-4, .ai-process-steps { grid-template-columns: 1fr; }
      .ai-footer-grid { grid-template-columns: 1fr; }
      .ai-hero-h1 { font-size: 24px; }
      .ai-hero-stats { grid-template-columns: 1fr 1fr; }
    }