:root {
      --primary-yellow: #FFD200;
      --primary-yellow-hover: #F5C400;
      --accent-gold: #FF9900;
      --dark-bg: #0F172A;
      --dark-card: #1E293B;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --light-bg: #FAF9F6;
      --white: #FFFFFF;
      --border-color: #E2E8F0;
      --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.05);
      --shadow-md: 0 10px 25px -5px rgba(255, 210, 0, 0.2);
      --shadow-hover: 0 20px 30px -10px rgba(0, 0, 0, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      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(--light-bg);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background-color: var(--light-bg);
    }

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

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .ai-page-logo {
      max-height: 44px;
      width: auto;
      object-fit: contain;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      white-space: nowrap;
      display: inline-block;
    }

    .nav-links li a:hover {
      background-color: var(--primary-yellow);
      color: #000;
    }

    .nav-links .ai-page-home-link {
      font-weight: 700;
      color: #000;
      background-color: var(--primary-yellow);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 700;
      border-radius: 30px;
      text-decoration: none;
      transition: all 0.25s ease;
      cursor: pointer;
      border: none;
    }

    .btn-yellow {
      background: linear-gradient(135deg, var(--primary-yellow) 0%, #FFB800 100%);
      color: #0F172A;
      box-shadow: 0 4px 14px rgba(255, 200, 0, 0.4);
    }

    .btn-yellow:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 200, 0, 0.6);
      background: linear-gradient(135deg, #FFE033 0%, var(--primary-yellow) 100%);
    }

    .btn-dark {
      background-color: var(--dark-bg);
      color: var(--white);
    }

    .btn-dark:hover {
      background-color: #1E293B;
      transform: translateY(-2px);
    }

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

    /* Section Styling */
    section {
      padding: 70px 0;
      position: relative;
    }

    .section-bg-yellow {
      background: linear-gradient(180deg, rgba(255,210,0,0.08) 0%, rgba(255,255,255,1) 100%);
    }

    .section-bg-white {
      background-color: var(--white);
    }

    .section-bg-gray {
      background-color: #F8FAFC;
    }

    .section-bg-dark {
      background-color: var(--dark-bg);
      color: var(--white);
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 5px 16px;
      background-color: var(--primary-yellow);
      color: #0F172A;
      font-weight: 700;
      font-size: 13px;
      border-radius: 20px;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 12px;
    }

    .section-header h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 15px;
      color: var(--text-main);
    }

    .section-header p {
      font-size: 16px;
      color: var(--text-muted);
    }

    .section-bg-dark .section-header h2 {
      color: var(--white);
    }

    .section-bg-dark .section-header p {
      color: #94A3B8;
    }

    /* HERO SECTION - Strictly NO Images */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 50% 20%, rgba(255, 210, 0, 0.25) 0%, rgba(250, 249, 246, 1) 70%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      background: #FFFFFF;
      border: 2px solid var(--primary-yellow);
      border-radius: 30px;
      font-size: 14px;
      font-weight: 700;
      color: #0F172A;
      box-shadow: 0 4px 12px rgba(0,0,0,0.05);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--dark-bg);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #D97706 0%, #B45309 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 19px;
      color: #475569;
      max-width: 860px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .hero-cta-group .btn {
      padding: 14px 36px;
      font-size: 17px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1060px;
      margin: 0 auto;
    }

    .metric-card {
      background: var(--white);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 210, 0, 0.4);
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease;
    }

    .metric-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .metric-num {
      font-size: 32px;
      font-weight: 900;
      color: #D97706;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* Models Tag Cloud */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-tag {
      background: var(--white);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    }

    .model-tag.highlight {
      background: var(--primary-yellow);
      border-color: var(--primary-yellow);
      color: #000;
    }

    /* Cards Grid System */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    /* Service Cards */
    .service-card {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary-yellow);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 15px 30px rgba(0,0,0,0.08);
      border-color: var(--primary-yellow);
    }

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

    .service-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--dark-bg);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* Media Cards */
    .media-card {
      background: var(--white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .media-card-img-box {
      width: 100%;
      background-color: #F1F5F9;
      overflow: hidden;
    }

    .media-card-content {
      padding: 20px;
    }

    .media-card-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .media-card-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Comparison Table Component */
    .comparison-table-wrapper {
      overflow-x: auto;
      background: var(--white);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 700px;
    }

    .comparison-table th, .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background-color: #F8FAFC;
      font-weight: 700;
      color: var(--dark-bg);
    }

    .comparison-table td.highlight {
      background-color: rgba(255, 210, 0, 0.15);
      font-weight: 700;
      color: #0F172A;
    }

    .rating-badge {
      display: flex;
      align-items: center;
      gap: 15px;
      background: #FFFBEB;
      border: 2px solid var(--primary-yellow);
      padding: 20px 30px;
      border-radius: var(--radius-md);
      margin-bottom: 30px;
    }

    .rating-score {
      font-size: 36px;
      font-weight: 900;
      color: #D97706;
    }

    .rating-stars {
      color: #F59E0B;
      font-size: 24px;
    }

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

    .faq-item {
      background: var(--white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }

    .faq-item.active {
      border-color: var(--primary-yellow);
      box-shadow: var(--shadow-sm);
    }

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

    .faq-question::after {
      content: '+';
      font-size: 22px;
      font-weight: 400;
      color: var(--text-muted);
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-question::after {
      content: '−';
      transform: rotate(180deg);
      color: #D97706;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #FAFAFA;
      color: #475569;
      font-size: 14px;
      line-height: 1.7;
    }

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

    /* Form Styling */
    .contact-form-box {
      background: var(--white);
      padding: 40px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-weight: 700;
      margin-bottom: 8px;
      font-size: 14px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 15px;
      outline: none;
      transition: border-color 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--accent-gold);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* Footer Styling */
    .site-footer {
      background-color: var(--dark-bg);
      color: #94A3B8;
      padding: 60px 0 30px 0;
      font-size: 14px;
    }

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

    .footer-col h4 {
      color: var(--white);
      font-size: 16px;
      margin-bottom: 20px;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #94A3B8;
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .footer-links a:hover {
      color: var(--primary-yellow);
    }

    .friendship-links-box {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid #1E293B;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friendship-links-box a {
      color: #94A3B8;
      text-decoration: none;
      font-size: 13px;
    }

    .friendship-links-box a:hover {
      color: var(--primary-yellow);
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 25px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
    }

    /* Floating Contact */
    .floating-contact {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary-yellow);
      color: #000;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(0,0,0,0.2);
      cursor: pointer;
      text-decoration: none;
      font-weight: bold;
      font-size: 12px;
      transition: transform 0.2s ease;
    }

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

    /* Responsive Utilities */
    @media (max-width: 1024px) {
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .hero-metrics { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links { display: none; }
      .mobile-menu-btn { display: block; }
      .hero-title { font-size: 28px; }
      .hero-subtitle { font-size: 15px; }
      .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
      .hero-metrics { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .contact-form-box { padding: 20px; }
    }