:root {
      --primary: #5433ff;
      --primary-gradient: linear-gradient(135deg, #ff3366 0%, #ff6b4a 35%, #5433ff 100%);
      --accent-pink: #ff3366;
      --accent-orange: #ff7733;
      --accent-blue: #205493;
      --accent-cyan: #00d2ff;
      --text-main: #181920;
      --text-muted: #5e6475;
      --text-light: #8f95a5;
      --bg-page: #fbfbfe;
      --bg-surface: #ffffff;
      --bg-subtle: #f4f5fa;
      --border-color: #e8ebf3;
      --border-focus: #5433ff;
      --shadow-sm: 0 4px 12px rgba(24, 25, 32, 0.04);
      --shadow-md: 0 10px 30px rgba(84, 51, 255, 0.08);
      --shadow-lg: 0 20px 45px rgba(24, 25, 32, 0.1);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    ul, ol {
      list-style: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      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, 0.94);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .brand-logo .ai-page-logo {
      max-height: 42px;
      width: auto;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }
    .nav-links li a:hover {
      color: var(--primary);
      background: rgba(84, 51, 255, 0.05);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-gradient {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: var(--primary-gradient);
      color: #ffffff;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: 50px;
      box-shadow: 0 6px 18px rgba(255, 51, 102, 0.3);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-gradient:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(84, 51, 255, 0.4);
      color: #ffffff;
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
      padding: 6px;
    }

    /* Hero Section (No Images Allowed) */
    .hero-section {
      position: relative;
      padding: 90px 0 80px;
      background: radial-gradient(circle at 85% 15%, rgba(255, 51, 102, 0.12) 0%, rgba(255, 255, 255, 0) 50%),
                  radial-gradient(circle at 15% 75%, rgba(84, 51, 255, 0.1) 0%, rgba(255, 255, 255, 0) 60%),
                  linear-gradient(180deg, #ffffff 0%, var(--bg-page) 100%);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }
    .hero-content {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 18px;
      background: rgba(255, 51, 102, 0.08);
      border: 1px solid rgba(255, 51, 102, 0.2);
      border-radius: 50px;
      color: var(--accent-pink);
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 2.85rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 24px;
      letter-spacing: -1px;
    }
    .hero-title .highlight {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.18rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 38px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-btns {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }
    .btn-large {
      padding: 14px 34px;
      font-size: 1.05rem;
      border-radius: 50px;
    }
    .btn-secondary {
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      font-weight: 700;
      box-shadow: var(--shadow-sm);
    }
    .btn-secondary:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
      margin-top: 10px;
    }
    .stat-item {
      text-align: center;
      border-right: 1px dashed var(--border-color);
    }
    .stat-item:last-child {
      border-right: none;
    }
    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
      margin-top: 4px;
    }

    /* Section Components */
    .section {
      padding: 85px 0;
      position: relative;
    }
    .section-alt {
      background: var(--bg-subtle);
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 55px;
    }
    .section-subtitle {
      font-size: 0.88rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--accent-orange);
      margin-bottom: 10px;
      display: inline-block;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 16px;
    }
    .section-intro {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Model Matrix Pill Wall */
    .models-marquee {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin-top: 25px;
    }
    .model-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
      transition: var(--transition);
    }
    .model-badge:hover {
      border-color: var(--accent-pink);
      color: var(--accent-pink);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    /* Grid Layouts & Cards */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .feature-card:hover {
      transform: translateY(-6px);
      border-color: rgba(84, 51, 255, 0.3);
      box-shadow: var(--shadow-md);
    }
    .card-icon-box {
      width: 54px;
      height: 54px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, rgba(255,51,102,0.1), rgba(84,51,255,0.1));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 900;
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .feature-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }

    /* Showcase & Banner Layouts */
    .media-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .media-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .media-card .img-wrap {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #eef1f6;
    }
    .media-card .img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .media-card:hover .img-wrap img {
      transform: scale(1.05);
    }
    .media-card .card-body {
      padding: 24px;
    }
    .media-card .card-body h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .media-card .card-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* Horizontal Showcase Section */
    .split-showcase {
      display: flex;
      align-items: center;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      margin-bottom: 35px;
    }
    .split-showcase.reverse {
      flex-direction: row-reverse;
    }
    .split-text {
      flex: 1;
    }
    .split-media {
      flex: 1;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .split-media img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* Flow Steps */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .flow-step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-badge {
      width: 36px;
      height: 36px;
      background: var(--primary-gradient);
      color: #fff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 0.95rem;
    }
    .flow-step-item h4 {
      font-size: 1.1rem;
      margin-bottom: 8px;
    }
    .flow-step-item p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Comparison Table */
    .comparison-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow-x: auto;
      padding: 24px;
    }
    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, rgba(84,51,255,0.06), rgba(255,51,102,0.06));
      border: 1px solid rgba(84,51,255,0.15);
      border-radius: var(--radius-md);
      padding: 20px 30px;
      margin-bottom: 24px;
    }
    .rating-score {
      display: flex;
      align-items: baseline;
      gap: 10px;
    }
    .rating-score .score {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--accent-pink);
      line-height: 1;
    }
    .rating-score .scale {
      font-size: 1rem;
      color: var(--text-muted);
      font-weight: 700;
    }
    .rating-tag {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--primary);
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }
    .custom-table th {
      background: var(--bg-subtle);
      font-weight: 800;
      color: var(--text-main);
    }
    .custom-table td.highlight-col {
      background: rgba(84, 51, 255, 0.03);
      font-weight: 700;
      color: var(--primary);
    }
    .tag-badge {
      display: inline-block;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 0.78rem;
      font-weight: 700;
    }
    .badge-win { background: #e6fffa; color: #047481; }
    .badge-lose { background: #fdf2f2; color: #9b1c1c; }

    /* Testimonials Grid */
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-text {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 18px;
      position: relative;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }
    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.9rem;
    }
    .author-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
    }
    .author-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ Section */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .faq-item:hover {
      border-color: rgba(84, 51, 255, 0.3);
    }
    .faq-header {
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--text-main);
    }
    .faq-toggle-icon {
      font-size: 1.25rem;
      transition: transform 0.3s ease;
      color: var(--primary);
    }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .faq-item.active .faq-content {
      max-height: 300px;
      padding-bottom: 20px;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    /* Contact & Form */
    .form-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-group label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 13px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: var(--bg-page);
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }
    .form-control:focus {
      border-color: var(--border-focus);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(84, 51, 255, 0.1);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* Articles & Dynamic Links */
    .article-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 20px;
    }
    .article-links-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .article-links-list a {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-main);
      font-weight: 600;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      background: var(--bg-subtle);
    }
    .article-links-list a:hover {
      background: rgba(84, 51, 255, 0.08);
      color: var(--primary);
    }

    /* QR Code Card */
    .qr-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .qr-card img {
      max-width: 180px;
      margin: 0 auto 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    /* Footer */
    footer.site-footer {
      background: #111218;
      color: #9b9faa;
      padding: 60px 0 30px;
      border-top: 1px solid #232633;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
      max-width: 320px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-col ul li {
      margin-bottom: 10px;
      font-size: 0.88rem;
    }
    .footer-col ul li a:hover {
      color: #ffffff;
    }
    .footer-links-row {
      border-top: 1px solid #232633;
      padding: 24px 0;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      font-size: 0.88rem;
    }
    .footer-links-row a {
      color: #7b8192;
    }
    .footer-links-row a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid #232633;
      padding-top: 24px;
      text-align: center;
      font-size: 0.82rem;
      color: #606575;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.2rem;
      transition: var(--transition);
      position: relative;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }
    .float-popover {
      display: none;
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      width: 200px;
      text-align: center;
    }
    .float-btn:hover .float-popover {
      display: block;
    }

    /* Responsive Queries */
    @media (max-width: 1024px) {
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .flow-steps { grid-template-columns: repeat(2, 1fr); }
      .footer-top { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .hero-title { font-size: 2.1rem; }
      .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 15px; }
      .stat-item:nth-child(2) { border-right: none; }
      .grid-3, .grid-2 { grid-template-columns: 1fr; }
      .split-showcase, .split-showcase.reverse { flex-direction: column; padding: 24px; }
      .form-grid { grid-template-columns: 1fr; }
      .form-group.full-width { grid-column: span 1; }
      .mobile-menu-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active { display: flex; }
      .nav-links li a { width: 100%; padding: 12px; }
      .footer-top { grid-template-columns: 1fr; }
    }