:root {
      --primary: #4f46e5;
      --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #ec4899 50%, #f59e0b 100%);
      --primary-light: #eef2ff;
      --accent-cyan: #06b6d4;
      --accent-pink: #f43f5e;
      --accent-amber: #d97706;
      --text-main: #0f172a;
      --text-sub: #334155;
      --text-muted: #64748b;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 20px 25px -5px rgba(79, 70, 229, 0.15), 0 10px 10px -5px rgba(236, 72, 153, 0.1);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --radius-full: 9999px;
    }

    * {
      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-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 10%, rgba(79, 70, 229, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 30%, rgba(236, 72, 153, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 40%);
      background-attachment: fixed;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* Header */
    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);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .logo-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }
    .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .logo-text span {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-sub);
      text-decoration: none;
      transition: color 0.2s ease;
      display: inline-block;
    }
    .nav-links li a:hover {
      color: var(--primary);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-full);
      text-decoration: none;
      transition: all 0.25s ease;
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(236, 72, 153, 0.45);
      color: #ffffff;
    }
    .btn-secondary {
      background: #ffffff;
      color: var(--primary);
      border-color: #c7d2fe;
    }
    .btn-secondary:hover {
      background: var(--primary-light);
      border-color: var(--primary);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Section Global */
    section {
      padding: 80px 0;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }
    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      border-radius: var(--radius-full);
      background: #fdf2f8;
      color: #be185d;
      border: 1px solid #fbcfe8;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-sub);
    }

    /* Hero Section (No Image strictly) */
    .hero-section {
      padding: 90px 0 80px 0;
      text-align: center;
      position: relative;
    }
    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid #e0e7ff;
      box-shadow: var(--shadow-sm);
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 24px;
    }
    .hero-pill span {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
    }
    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      max-width: 960px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-title .rainbow-text {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-subtitle {
      font-size: 18px;
      color: var(--text-sub);
      max-width: 780px;
      margin: 0 auto 36px auto;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .hero-actions .btn {
      padding: 14px 32px;
      font-size: 16px;
    }

    /* Brand Stream & Stats */
    .hero-highlights {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }
    .highlight-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      text-align: left;
    }
    .highlight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #c7d2fe;
    }
    .highlight-icon {
      width: 42px;
      height: 42px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 12px;
    }
    .hi-1 { background: #eef2ff; color: var(--primary); }
    .hi-2 { background: #fdf2f8; color: #db2777; }
    .hi-3 { background: #ecfeff; color: #0891b2; }
    .hi-4 { background: #fffbeb; color: #d97706; }
    .highlight-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .highlight-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Model Tags Cloud */
    .model-tags-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      margin-top: 40px;
      box-shadow: var(--shadow-sm);
    }
    .model-tags-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .tags-flex {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }
    .tag-item {
      display: inline-block;
      padding: 6px 14px;
      background: #f1f5f9;
      color: var(--text-sub);
      font-size: 13px;
      font-weight: 600;
      border-radius: var(--radius-full);
      border: 1px solid #e2e8f0;
      transition: all 0.2s ease;
    }
    .tag-item:hover {
      background: var(--primary-light);
      color: var(--primary);
      border-color: #c7d2fe;
    }

    /* About Us / Platform Info */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-content h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 20px;
      line-height: 1.3;
      color: var(--text-main);
    }
    .about-content p {
      font-size: 15px;
      color: var(--text-sub);
      margin-bottom: 20px;
      line-height: 1.8;
    }
    .about-features {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 24px;
    }
    .about-features li {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .about-features li::before {
      content: "✓";
      color: #10b981;
      font-weight: 900;
    }
    .media-frame {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      background: #ffffff;
    }
    .media-frame img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    /* Service Grid */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: #cbd5e1;
    }
    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 18px;
    }
    .sc-1 { background: #ede9fe; color: #7c3aed; }
    .sc-2 { background: #fce7f3; color: #db2777; }
    .sc-3 { background: #e0f2fe; color: #0284c7; }
    .sc-4 { background: #fef3c7; color: #d97706; }
    .sc-5 { background: #dcfce7; color: #16a34a; }
    .sc-6 { background: #fee2e2; color: #dc2626; }
    .service-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .service-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* Industry Matrix */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .matrix-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      gap: 16px;
    }
    .matrix-card .m-badge {
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
    }
    .matrix-card-body h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .matrix-card-body p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.5;
    }

    /* Step Process */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }
    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      font-weight: 800;
      font-size: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
    }
    .step-item h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Comparison Section */
    .compare-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }
    .compare-header-card {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      padding: 30px;
      text-align: center;
    }
    .score-badge {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(8px);
      padding: 8px 24px;
      border-radius: var(--radius-full);
      margin-top: 12px;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .score-badge .score-val {
      font-size: 28px;
      font-weight: 900;
      color: #fbbf24;
    }
    .table-responsive {
      overflow-x: auto;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      font-size: 14px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table td.col-brand {
      font-weight: 700;
      color: var(--primary);
      background: #f5f3ff;
    }
    .status-yes {
      color: #16a34a;
      font-weight: 700;
    }
    .status-no {
      color: #94a3b8;
    }

    /* Reviews Section */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .review-stars {
      color: #f59e0b;
      font-size: 14px;
      margin-bottom: 12px;
    }
    .review-text {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .user-avatar-tag {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }
    .user-meta h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .user-meta p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* FAQ Section */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      transition: background-color 0.2s ease;
    }
    .faq-question:hover {
      background-color: #f8fafc;
    }
    .faq-toggle-icon {
      font-size: 18px;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafafa;
    }
    .faq-answer-inner {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* Contact & Form */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 40px;
    }
    .contact-info h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .contact-info p {
      font-size: 14px;
      color: var(--text-sub);
      margin-bottom: 24px;
    }
    .contact-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .contact-list li {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }
    .contact-qr-wrap {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 20px;
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .contact-qr-wrap img {
      width: 90px;
      height: 90px;
      border-radius: var(--radius-sm);
      border: 1px solid #cbd5e1;
      object-fit: cover;
    }
    .qr-text h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .qr-text p {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 0;
    }

    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      background-color: #f8fafc;
    }
    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* Articles Section */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .article-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .article-card h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .article-card a {
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .article-card a:hover {
      text-decoration: underline;
    }

    /* Footer */
    footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      margin-top: 40px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid #334155;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a, .footer-col a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s ease;
    }
    .footer-links a:hover, .footer-col a:hover {
      color: #ffffff;
    }
    .friend-links-box {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .friend-links-box a {
      display: inline-block;
      padding: 4px 10px;
      background: #1e293b;
      border-radius: 4px;
      color: #cbd5e1;
      font-size: 12px;
      text-decoration: none;
    }
    .friend-links-box a:hover {
      background: #334155;
      color: #ffffff;
    }
    .footer-bottom {
      padding-top: 30px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .floating-btn {
      width: 48px;
      height: 48px;
      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(--primary);
      font-size: 20px;
      cursor: pointer;
      text-decoration: none;
      transition: all 0.2s ease;
    }
    .floating-btn:hover {
      transform: scale(1.1);
      background: var(--primary);
      color: #ffffff;
    }

    /* Responsive */
    @media (max-width: 992px) {
      .hero-title { font-size: 32px; }
      .hero-highlights { grid-template-columns: repeat(2, 1fr); }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(2, 1fr); }
      .about-grid { grid-template-columns: 1fr; }
      .contact-wrapper { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .articles-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-lg);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn { display: block; }
      .hero-title { font-size: 26px; }
      .matrix-grid { grid-template-columns: 1fr; }
      .service-grid { grid-template-columns: 1fr; }
      .hero-highlights { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
    }