:root {
      --primary: #0f172a;
      --primary-accent: #7928ca;
      --neon-cyan: #00f0ff;
      --neon-pink: #ff0080;
      --neon-purple: #7928ca;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-subtle: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.25);
      --radius: 12px;
      --max-width: 1200px;
    }

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

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

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

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

    /* Typography Helper */
    h1, h2, h3, h4 {
      color: var(--text-main);
      font-weight: 700;
      line-height: 1.3;
    }

    .section-title {
      font-size: 2rem;
      text-align: center;
      margin-bottom: 12px;
      position: relative;
      display: inline-block;
    }

    .section-subtitle {
      text-align: center;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto 40px auto;
      font-size: 1rem;
    }

    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .badge-neon {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      background: linear-gradient(90deg, rgba(0,240,255,0.12), rgba(255,0,128,0.12));
      border: 1px solid rgba(121,40,202,0.3);
      color: var(--primary-accent);
      margin-bottom: 12px;
    }

    /* Header & Nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--text-main);
      font-weight: bold;
      font-size: 1.25rem;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
    }

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

    .nav-links li a {
      text-decoration: none;
      color: var(--text-main);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 14px;
      border-radius: 6px;
      transition: all 0.25s ease;
      white-space: nowrap;
    }

    .nav-links li a:hover {
      color: var(--neon-purple);
      background: rgba(121, 40, 202, 0.06);
    }

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

    .btn-neon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      transition: all 0.3s ease;
      cursor: pointer;
      border: none;
    }

    .btn-neon-primary {
      background: linear-gradient(135deg, #00f0ff 0%, #7928ca 50%, #ff0080 100%);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(121, 40, 202, 0.3);
    }

    .btn-neon-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 240, 255, 0.4);
      opacity: 0.95;
    }

    .btn-neon-outline {
      background: transparent;
      color: var(--text-main);
      border: 1px solid rgba(121, 40, 202, 0.4);
    }

    .btn-neon-outline:hover {
      background: rgba(121, 40, 202, 0.05);
      border-color: var(--neon-purple);
      color: var(--neon-purple);
    }

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

    /* Hero Section - STRICT NO IMAGES */
    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 50% 20%, rgba(0, 240, 255, 0.08) 0%, rgba(121, 40, 202, 0.05) 40%, rgba(248, 250, 252, 1) 80%);
      text-align: center;
      position: relative;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
      color: var(--text-main);
    }

    .hero-title-gradient {
      background: linear-gradient(135deg, #00b4d8, #7928ca, #ff0080);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }

    .hero-tags {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-tag-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      color: var(--text-muted);
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
    }

    /* Stats Indicator Cards Section */
    .stats-section {
      padding: 40px 0;
      margin-top: -20px;
    }

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

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--neon-cyan), var(--neon-pink));
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* General Section Padding & Styling */
    .section-block {
      padding: 80px 0;
    }

    .section-block-alt {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

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

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

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

    .neon-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
      position: relative;
    }

    .neon-card:hover {
      border-color: rgba(121, 40, 202, 0.4);
      box-shadow: 0 10px 30px rgba(121, 40, 202, 0.08);
      transform: translateY(-3px);
    }

    .card-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(0,240,255,0.1), rgba(121,40,202,0.1));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 16px;
      color: var(--neon-purple);
    }

    .card-title {
      font-size: 1.15rem;
      margin-bottom: 10px;
    }

    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      flex-grow: 1;
      line-height: 1.6;
    }

    /* Model Badges Grid */
    .models-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 10px 18px;
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      gap: 8px;
      transition: all 0.25s ease;
    }

    .model-chip:hover {
      border-color: var(--neon-cyan);
      box-shadow: var(--shadow-neon);
      transform: translateY(-2px);
    }

    .model-chip span {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--neon-cyan);
      display: inline-block;
    }

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

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px 16px;
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      color: #fff;
      font-weight: bold;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px auto;
    }

    /* Price Table */
    .price-table-wrapper {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

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

    .custom-table th {
      background: var(--bg-subtle);
      font-weight: 700;
      color: var(--text-main);
    }

    .custom-table tbody tr:hover {
      background: rgba(121, 40, 202, 0.02);
    }

    .tag-highlight {
      color: #059669;
      font-weight: bold;
      background: #ecfdf5;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.85rem;
    }

    /* Comparison Review Special Block */
    .review-score-box {
      background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
      border: 2px solid rgba(121, 40, 202, 0.2);
      border-radius: var(--radius);
      padding: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 40px;
      box-shadow: var(--shadow-md);
    }

    .score-left h3 {
      font-size: 1.5rem;
      margin-bottom: 8px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .score-big {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--neon-purple);
      line-height: 1;
    }

    .score-total {
      font-size: 1.1rem;
      color: var(--text-muted);
    }

    /* Media Library Showcase Grid Outside Hero */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .media-card {
      background: #fff;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .media-info {
      padding: 16px;
    }

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

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

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

    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-toggle {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
      color: var(--neon-purple);
    }

    .faq-item.active .faq-toggle {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
      background: #fafafa;
    }

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

    /* Contact Form Section */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .contact-detail-item {
      margin-bottom: 20px;
    }

    .contact-detail-item strong {
      display: block;
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .contact-detail-item span {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .qr-container {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 16px;
      background: var(--bg-subtle);
      padding: 16px;
      border-radius: 10px;
    }

    .qr-container img {
      width: 100px;
      height: 100px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

    .form-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.25s ease;
      background: #ffffff;
      color: var(--text-main);
    }

    .form-control:focus {
      border-color: var(--neon-purple);
      box-shadow: 0 0 0 3px rgba(121, 40, 202, 0.1);
    }

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

    /* User Reviews */
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 20px;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }

    .avatar-circle {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    .reviewer-info h4 {
      font-size: 0.95rem;
      margin-bottom: 2px;
    }

    .reviewer-info p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* Article List Section */
    .article-list-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      transition: transform 0.25s ease;
    }

    .article-card:hover {
      transform: translateY(-3px);
    }

    .article-card a {
      color: var(--text-main);
      text-decoration: none;
      font-weight: 600;
      font-size: 1rem;
    }

    .article-card a:hover {
      color: var(--neon-purple);
    }

    /* Footer Style */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 1px solid #1e293b;
    }

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

    .footer-brand h3 {
      color: #ffffff;
      font-size: 1.3rem;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
      color: #94a3b8;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 16px;
    }

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

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

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.25s ease;
    }

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

    .friendly-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friendly-links a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.88rem;
      background: rgba(255, 255, 255, 0.05);
      padding: 4px 10px;
      border-radius: 4px;
      transition: all 0.25s ease;
    }

    .friendly-links a:hover {
      color: #ffffff;
      background: rgba(0, 240, 255, 0.2);
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-bottom a {
      color: #94a3b8;
      text-decoration: none;
    }

    /* Floating Customer Support Widget */
    .floating-widget {
      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: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      text-decoration: none;
      font-size: 1.2rem;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      background: var(--neon-purple);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* Responsive Adjustments */
    @media (max-width: 1024px) {
      .card-grid-4, .card-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps {
        grid-template-columns: repeat(3, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .hero-title {
        font-size: 2rem;
      }
      .card-grid-2, .card-grid-3, .card-grid-4, .article-list-grid {
        grid-template-columns: 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .workflow-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .review-score-box {
        flex-direction: column;
        gap: 20px;
        text-align: center;
      }
    }