:root {
      --bg-base: #0b0716;
      --bg-surface: #140d28;
      --bg-card: rgba(26, 17, 50, 0.7);
      --bg-card-hover: rgba(38, 24, 75, 0.9);
      --border-color: rgba(244, 63, 150, 0.25);
      --border-highlight: #f43f96;
      --primary-pink: #f43f96;
      --primary-purple: #9333ea;
      --accent-cyan: #06b6d4;
      --text-main: #f8fafc;
      --text-muted: #cbd5e1;
      --text-dim: #94a3b8;
      --grad-pink-purple: linear-gradient(135deg, #f43f96 0%, #9333ea 100%);
      --grad-neon: linear-gradient(90deg, #f43f96, #06b6d4, #9333ea);
      --glow-pink: 0 0 20px rgba(244, 63, 150, 0.4);
      --container-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-base);
      color: var(--text-main);
    }

    body {
      background: radial-gradient(circle at 50% 0%, #25103f 0%, #0b0716 50%, #07040e 100%);
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(11, 7, 22, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

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

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

    .brand-group img.ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
      filter: drop-shadow(0 0 8px rgba(244, 63, 150, 0.5));
    }

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      letter-spacing: 1px;
      color: #fff;
      text-transform: uppercase;
    }

    .brand-title span {
      color: var(--primary-pink);
    }

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

    .nav-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 6px;
      transition: all 0.25s ease;
      display: inline-block;
    }

    .nav-links a:hover,
    .nav-links a.ai-page-home-link {
      color: #fff;
      text-shadow: 0 0 10px var(--primary-pink);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 8px;
      text-decoration: none;
      cursor: pointer;
      transition: all 0.3s ease;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: var(--grad-pink-purple);
      color: #fff;
      box-shadow: var(--glow-pink);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 25px rgba(244, 63, 150, 0.7);
    }

    .btn-outline {
      border-color: var(--primary-pink);
      color: #fff;
      background: rgba(244, 63, 150, 0.1);
    }

    .btn-outline:hover {
      background: var(--primary-pink);
      color: #fff;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 24px;
      cursor: pointer;
    }

    /* Hero */
    .hero-section {
      padding: 90px 0 60px;
      position: relative;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: rgba(244, 63, 150, 0.15);
      border: 1px solid rgba(244, 63, 150, 0.4);
      border-radius: 30px;
      font-size: 13px;
      color: #ff9ed2;
      margin-bottom: 24px;
    }

    .hero-badge .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary-pink);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary-pink);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.9); opacity: 0.8; }
      50% { transform: scale(1.3); opacity: 1; }
      100% { transform: scale(0.9); opacity: 0.8; }
    }

    .hero-title {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
      color: #fff;
    }

    .hero-title .neon-text {
      color: #ff7ebb;
      text-shadow: 0 0 20px rgba(244, 63, 150, 0.6);
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
    }

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

    .hero-cta-group .btn-lg {
      padding: 14px 32px;
      font-size: 16px;
      border-radius: 10px;
    }

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

    .metric-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 20px 16px;
      text-align: center;
      backdrop-filter: blur(8px);
      transition: transform 0.3s ease;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary-pink);
    }

    .metric-value {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 4px;
      text-shadow: 0 0 10px rgba(244, 63, 150, 0.4);
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-dim);
    }

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

    .section-head {
      text-align: center;
      max-width: 700px;
      margin: 0 auto 48px;
    }

    .section-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary-pink);
      text-transform: uppercase;
      letter-spacing: 2px;
      margin-bottom: 8px;
      display: inline-block;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }

    .section-subtitle {
      font-size: 15px;
      color: var(--text-muted);
    }

    /* Models Cloud */
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-pill {
      background: rgba(30, 20, 60, 0.8);
      border: 1px solid rgba(244, 63, 150, 0.3);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      color: #e2e8f0;
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      background: var(--primary-pink);
      color: #fff;
      transform: scale(1.05);
      border-color: var(--primary-pink);
      box-shadow: 0 0 12px rgba(244, 63, 150, 0.5);
    }

    /* Grid Layouts */
    .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: 24px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 24px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      border-color: var(--primary-pink);
      background: var(--bg-card-hover);
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(244, 63, 150, 0.2);
    }

    .feature-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(244, 63, 150, 0.2);
      border: 1px solid var(--primary-pink);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 20px;
      margin-bottom: 16px;
    }

    .feature-title {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

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

    /* Process Steps */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px 20px;
      position: relative;
    }

    .step-num {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary-pink);
      margin-bottom: 12px;
      opacity: 0.9;
    }

    /* Review Card & Comparison */
    .compare-container {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(244, 63, 150, 0.15);
      font-size: 14px;
    }

    .compare-table th {
      background: rgba(20, 13, 40, 0.95);
      color: #fff;
      font-weight: 700;
    }

    .compare-table td {
      color: var(--text-muted);
    }

    .compare-table tr:hover td {
      background: rgba(244, 63, 150, 0.05);
      color: #fff;
    }

    .compare-highlight {
      color: #ff7ebb;
      font-weight: 700;
    }

    .rating-banner {
      background: linear-gradient(90deg, rgba(244, 63, 150, 0.2), rgba(147, 51, 234, 0.2));
      border: 1px solid var(--primary-pink);
      border-radius: 12px;
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-score {
      font-size: 38px;
      font-weight: 900;
      color: #ff9ed2;
      text-shadow: 0 0 15px var(--primary-pink);
    }

    /* Media & Cases */
    .media-case-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 14px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .media-case-img {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #1a1030;
    }

    .media-case-img.square {
      aspect-ratio: 1 / 1;
    }

    .media-case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .media-case-card:hover .media-case-img img {
      transform: scale(1.05);
    }

    .media-case-body {
      padding: 20px;
    }

    .media-case-tag {
      font-size: 12px;
      color: var(--primary-pink);
      font-weight: 600;
      margin-bottom: 6px;
    }

    /* Form */
    .form-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 36px;
      max-width: 760px;
      margin: 0 auto;
    }

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

    .form-group.full {
      grid-column: span 2;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      background: rgba(11, 7, 22, 0.8);
      border: 1px solid rgba(244, 63, 150, 0.3);
      border-radius: 8px;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border 0.3s;
    }

    .form-control:focus {
      border-color: var(--primary-pink);
      box-shadow: 0 0 10px rgba(244, 63, 150, 0.3);
    }

    textarea.form-control {
      min-height: 100px;
      resize: vertical;
    }

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

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      font-size: 15px;
      color: #fff;
    }

    .faq-question:hover {
      color: var(--primary-pink);
    }

    .faq-arrow {
      transition: transform 0.3s ease;
      color: var(--primary-pink);
      font-size: 18px;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: rgba(15, 10, 30, 0.6);
      padding: 0 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      padding: 16px 20px 20px;
      max-height: 300px;
    }

    /* Testimonials */
    .testi-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 20px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--grad-pink-purple);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 16px;
    }

    .testi-meta h4 {
      font-size: 15px;
      color: #fff;
    }

    .testi-meta p {
      font-size: 12px;
      color: var(--text-dim);
    }

    .testi-content {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Articles & Links */
    .article-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
    }

    .article-link {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 10px 18px;
      border-radius: 8px;
      color: var(--text-muted);
      text-decoration: none;
      font-size: 14px;
      transition: all 0.25s;
    }

    .article-link:hover {
      border-color: var(--primary-pink);
      color: #fff;
      box-shadow: 0 0 10px rgba(244, 63, 150, 0.3);
    }

    /* Footer */
    footer.site-footer {
      background: #07040e;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      margin-top: 40px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 16px;
      color: #fff;
      margin-bottom: 16px;
      position: relative;
    }

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

    .footer-links a {
      color: var(--text-dim);
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s;
    }

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

    .qr-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }

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

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      padding: 20px 0;
      border-top: 1px solid rgba(244, 63, 150, 0.15);
      border-bottom: 1px solid rgba(244, 63, 150, 0.15);
      margin-bottom: 24px;
    }

    .friend-links a {
      color: var(--text-dim);
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s;
    }

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

    .footer-bottom {
      text-align: center;
      font-size: 13px;
      color: var(--text-dim);
    }

    /* Floating */
    .float-contact {
      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: var(--grad-pink-purple);
      border: 1px solid #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      box-shadow: 0 4px 15px rgba(244, 63, 150, 0.6);
      cursor: pointer;
      text-decoration: none;
      transition: transform 0.2s;
    }

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

    @media (max-width: 992px) {
      .hero-title { font-size: 36px; }
      .card-grid-4, .hero-metrics, .step-grid { grid-template-columns: repeat(2, 1fr); }
      .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .menu-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(11, 7, 22, 0.98);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 20px 0;
      }
      .nav-links.active { display: flex; }
      .hero-title { font-size: 28px; }
      .card-grid-3, .card-grid-2, .hero-metrics, .step-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-group.full { grid-column: span 1; }
      .footer-grid { grid-template-columns: 1fr; }
    }