:root {
      --primary: #00e599;
      --primary-dark: #00b377;
      --accent-neon: #7000ff;
      --accent-cyan: #00d2ff;
      --accent-pink: #ff007a;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --glow-shadow: 0 0 20px rgba(0, 229, 153, 0.15), 0 0 40px rgba(112, 0, 255, 0.08);
      --container-max: 1200px;
      --radius: 12px;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(0, 229, 153, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(112, 0, 255, 0.04) 0%, transparent 40%);
      background-attachment: fixed;
    }

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

    /* Header & Navigation */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 229, 153, 0.2);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      color: var(--text-main);
    }

    .brand-logo-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: linear-gradient(135deg, #0f172a, #7000ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

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

    .nav-links li a,
    .nav-links li .ai-page-home-link {
      display: inline-block;
      padding: 8px 12px;
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.92rem;
      font-weight: 500;
      transition: color 0.2s ease;
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .nav-links li .ai-page-home-link:hover {
      color: var(--primary-dark);
    }

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

    .btn-neon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: 30px;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      color: #052e16;
      font-weight: 700;
      font-size: 0.9rem;
      text-decoration: none;
      border: 1px solid rgba(0, 229, 153, 0.4);
      box-shadow: 0 2px 10px rgba(0, 229, 153, 0.3);
      transition: all 0.25s ease;
    }

    .btn-neon:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(0, 229, 153, 0.45);
      color: #022010;
    }

    .btn-neon-purple {
      background: linear-gradient(135deg, #7000ff, #ff007a);
      color: #ffffff;
      border-color: rgba(255, 0, 122, 0.4);
      box-shadow: 0 2px 10px rgba(112, 0, 255, 0.3);
    }

    .btn-neon-purple:hover {
      color: #ffffff;
      box-shadow: 0 6px 18px rgba(112, 0, 255, 0.45);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: 30px;
      background: #ffffff;
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.9rem;
      text-decoration: none;
      border: 1px solid var(--border-color);
      transition: all 0.2s ease;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary-dark);
      background: #f0fdf4;
    }

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

    /* Hero Section (No Images as per rule) */
    .hero-section {
      padding: 70px 0 50px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(0, 229, 153, 0.08) 0%, rgba(248, 250, 252, 0) 100%);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    }

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

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      border-radius: 20px;
      background: rgba(0, 229, 153, 0.15);
      border: 1px solid rgba(0, 229, 153, 0.4);
      color: #065f46;
      font-size: 0.85rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: -1px;
      color: #0f172a;
    }

    .hero-title .highlight-neon {
      background: linear-gradient(135deg, #00b377, #7000ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      position: relative;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.65;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-cta-group .btn-neon {
      padding: 14px 34px;
      font-size: 1.05rem;
    }

    .hero-cta-group .btn-outline {
      padding: 14px 28px;
      font-size: 1.02rem;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid rgba(0, 229, 153, 0.25);
      border-radius: var(--radius);
      padding: 18px 12px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
      transition: transform 0.25s ease;
    }

    .metric-card:hover {
      transform: translateY(-3px);
      border-color: var(--primary);
    }

    .metric-num {
      font-size: 1.65rem;
      font-weight: 800;
      color: #0f172a;
      display: block;
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Section Global */
    section {
      padding: 60px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 40px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      color: #7000ff;
      background: rgba(112, 0, 255, 0.08);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 10px;
      border: 1px solid rgba(112, 0, 255, 0.2);
    }

    .section-title {
      font-size: 1.95rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-subtitle {
      font-size: 0.98rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Model badges banner */
    .model-ticker {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 16px 0;
      margin-bottom: 40px;
    }

    .model-pills {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-pill {
      font-size: 0.82rem;
      font-weight: 600;
      color: #334155;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      padding: 5px 12px;
      border-radius: 6px;
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      border-color: var(--primary);
      background: #f0fdf4;
      color: #065f46;
    }

    /* Grid Layouts */
    .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: 28px;
    }

    /* Cards */
    .neon-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .neon-card:hover {
      border-color: var(--primary);
      box-shadow: var(--glow-shadow);
      transform: translateY(-4px);
    }

    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(0, 229, 153, 0.12);
      color: #00b377;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 16px;
      border: 1px solid rgba(0, 229, 153, 0.3);
    }

    .card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .card-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    .card-footer-tag {
      margin-top: 14px;
      font-size: 0.8rem;
      font-weight: 600;
      color: #7000ff;
    }

    /* Standard Flow Steps */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .step-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 16px;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      color: #052e16;
      font-weight: 800;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 12px;
    }

    .step-name {
      font-size: 0.98rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .step-detail {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* Comparison Table */
    .table-container {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }

    .eval-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .eval-table tr:hover td {
      background: #f0fdf4;
    }

    .eval-badge {
      display: inline-block;
      padding: 4px 10px;
      border-radius: 12px;
      font-size: 0.8rem;
      font-weight: 700;
    }

    .badge-win {
      background: #dcfce7;
      color: #15803d;
      border: 1px solid #86efac;
    }

    .badge-lose {
      background: #f1f5f9;
      color: #64748b;
    }

    .rating-summary-box {
      background: linear-gradient(135deg, #ffffff, #f0fdf4);
      border: 2px solid var(--primary);
      border-radius: var(--radius);
      padding: 24px;
      margin-bottom: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-score-huge {
      font-size: 2.2rem;
      font-weight: 900;
      color: #052e16;
      line-height: 1;
    }

    .rating-stars {
      color: #f59e0b;
      font-size: 1.25rem;
      margin-left: 8px;
    }

    /* Showcase & Images */
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .media-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .media-card-img-wrap {
      width: 100%;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      aspect-ratio: 16 / 9;
    }

    .media-card-img-wrap.square-ratio {
      aspect-ratio: 4 / 3;
    }

    .media-card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .media-card:hover .media-card-img-wrap img {
      transform: scale(1.03);
    }

    .media-card-body {
      padding: 16px;
    }

    .media-card-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .media-card-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Reviews Section */
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .review-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #7000ff, #00e599);
      color: #ffffff;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.95rem;
    }

    .review-meta h4 {
      font-size: 0.95rem;
      font-weight: 700;
    }

    .review-meta span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .review-text {
      font-size: 0.88rem;
      color: #334155;
      line-height: 1.55;
    }

    /* FAQ Section Accordion */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-item.active {
      border-color: var(--primary);
    }

    .faq-header {
      width: 100%;
      padding: 16px 20px;
      text-align: left;
      background: none;
      border: none;
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 1.1rem;
      color: var(--primary-dark);
      transition: transform 0.2s ease;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--accent-neon);
    }

    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #f8fafc;
      color: var(--text-muted);
      font-size: 0.9rem;
      line-height: 1.6;
      padding: 0 20px;
    }

    .faq-item.active .faq-body {
      padding: 14px 20px 18px;
      max-height: 250px;
    }

    /* Form Section */
    .form-wrapper-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
      max-width: 800px;
      margin: 0 auto;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      font-size: 0.92rem;
      background: #f8fafc;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 229, 153, 0.15);
    }

    .form-grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    /* Contact & QR code */
    .contact-card-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      text-align: center;
    }

    .qr-container {
      width: 140px;
      height: 140px;
      margin: 0 auto 16px;
      border: 1px dashed var(--primary);
      padding: 6px;
      border-radius: 8px;
      background: #ffffff;
    }

    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* Articles & Links */
    .article-pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
    }

    .article-pill-list a {
      color: #334155;
      text-decoration: none;
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      transition: all 0.2s ease;
    }

    .article-pill-list a:hover {
      border-color: var(--accent-neon);
      color: var(--accent-neon);
      background: #faf5ff;
    }

    /* Footer */
    footer.site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 50px 0 30px;
      border-top: 2px solid var(--primary);
      margin-top: 40px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 36px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col p {
      font-size: 0.88rem;
      line-height: 1.6;
      color: #94a3b8;
      margin-bottom: 12px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links a,
    .footer-links span {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s ease;
    }

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

    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .friend-links-box a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.82rem;
      background: #1e293b;
      padding: 4px 10px;
      border-radius: 4px;
      transition: all 0.2s ease;
    }

    .friend-links-box a:hover {
      color: #ffffff;
      background: var(--primary-dark);
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.82rem;
      color: #64748b;
    }

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

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--primary);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-dark);
      text-decoration: none;
      font-weight: 800;
      font-size: 1.1rem;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #052e16;
      transform: scale(1.08);
    }

    /* Responsive */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 2.1rem;
      }
      .grid-4, .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
      }
      .nav-menu.active {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .nav-toggle {
        display: block;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 1.65rem;
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-2, .grid-3, .showcase-grid, .form-grid-2 {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: 1fr;
      }
    }