:root {
      --bg-dark: #0a0714;
      --bg-card: rgba(26, 16, 43, 0.75);
      --bg-card-hover: rgba(39, 23, 64, 0.9);
      --primary-neon: #d946ef;
      --secondary-neon: #8b5cf6;
      --cyan-neon: #06b6d4;
      --text-main: #f3f4f6;
      --text-muted: #9ca3af;
      --border-glow: rgba(217, 70, 239, 0.3);
      --border-glow-active: rgba(217, 70, 239, 0.8);
      --max-width: 1200px;
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      background: radial-gradient(circle at 50% 0%, #2e1065 0%, #0a0714 60%);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 7, 20, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-glow);
    }

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

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

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

    .brand-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      text-shadow: 0 0 10px var(--primary-neon);
      letter-spacing: 1px;
    }

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

    .nav-links li a {
      font-size: 0.95rem;
      color: var(--text-muted);
      padding: 8px 14px;
      border-radius: 6px;
      display: block;
    }

    .nav-links li a:hover {
      color: #fff;
      text-shadow: 0 0 8px var(--primary-neon);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-glow {
      background: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
      color: #fff;
      box-shadow: 0 0 18px rgba(217, 70, 239, 0.5);
    }

    .btn-glow:hover {
      box-shadow: 0 0 25px rgba(217, 70, 239, 0.8);
      transform: translateY(-2px);
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.05);
      border-color: var(--border-glow);
      color: #fff;
    }

    .btn-outline:hover {
      background: rgba(217, 70, 239, 0.15);
      border-color: var(--primary-neon);
    }

    .mobile-menu-toggle {
      display: none;
      background: transparent;
      border: none;
      color: #fff;
      font-size: 1.5rem;
      cursor: pointer;
    }

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

    .hero-tagline {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(217, 70, 239, 0.15);
      border: 1px solid var(--border-glow);
      border-radius: 50px;
      color: var(--primary-neon);
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }

    .hero-title {
      font-size: 2.5rem;
      line-height: 1.25;
      font-weight: 800;
      margin-bottom: 24px;
      background: linear-gradient(135deg, #ffffff 30%, #f472b6 70%, #c084fc 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 960px;
      margin: 0 auto;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      padding: 20px;
      border-radius: var(--radius);
      backdrop-filter: blur(10px);
    }

    .stat-val {
      font-size: 1.8rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 4px;
      text-shadow: 0 0 10px rgba(217, 70, 239, 0.4);
    }

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

    .section {
      padding: 70px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .section-header {
      text-align: center;
      margin-bottom: 44px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
      text-shadow: 0 0 12px rgba(139, 92, 246, 0.3);
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto;
    }

    .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: 32px;
    }

    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius);
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .card:hover {
      border-color: var(--primary-neon);
      transform: translateY(-4px);
      box-shadow: 0 8px 24px rgba(217, 70, 239, 0.18);
    }

    .card-title {
      font-size: 1.2rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .badge {
      display: inline-block;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      background: rgba(139, 92, 246, 0.2);
      color: #c084fc;
      border: 1px solid rgba(139, 92, 246, 0.4);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .tag-item {
      padding: 6px 14px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 20px;
      font-size: 0.85rem;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .tag-item:hover {
      color: #fff;
      border-color: var(--primary-neon);
      background: rgba(217, 70, 239, 0.1);
    }

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

    .media-thumb-container {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #110d21;
      overflow: hidden;
      position: relative;
    }

    .media-thumb-container.square {
      aspect-ratio: 1 / 1;
    }

    .media-thumb-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: var(--transition);
    }

    .media-card:hover .media-thumb-container img {
      transform: scale(1.04);
    }

    .media-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

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

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

    .step-num {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary-neon);
      opacity: 0.8;
      margin-bottom: 8px;
    }

    .table-container {
      overflow-x: auto;
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius);
    }

    .rating-header {
      background: rgba(217, 70, 239, 0.1);
      padding: 20px;
      display: flex;
      justify-content: space-around;
      align-items: center;
      border-bottom: 1px solid var(--border-glow);
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-badge {
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
    }

    .rating-score {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary-neon);
    }

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

    th, td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    th {
      background: rgba(0, 0, 0, 0.3);
      color: #fff;
      font-weight: 600;
    }

    tr:last-child td {
      border-bottom: none;
    }

    .compare-highlight {
      color: var(--primary-neon);
      font-weight: 600;
    }

    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }

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

    .faq-question {
      padding: 18px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      color: #fff;
    }

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

    .faq-answer {
      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: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-bottom: 18px;
    }

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

    .form-wrapper {
      max-width: 700px;
      margin: 0 auto;
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius);
      padding: 36px;
    }

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

    .form-label {
      display: block;
      margin-bottom: 8px;
      font-size: 0.9rem;
      color: #fff;
      font-weight: 500;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      background: rgba(10, 7, 20, 0.8);
      border: 1px solid var(--border-glow);
      border-radius: 8px;
      color: #fff;
      font-size: 0.95rem;
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary-neon);
      box-shadow: 0 0 10px rgba(217, 70, 239, 0.4);
    }

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

    .comment-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .comment-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }

    .comment-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 12px;
    }

    .user-avatar-initial {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    .user-info h4 {
      font-size: 0.95rem;
      color: #fff;
    }

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

    .article-list-wrap {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-item {
      padding: 16px 20px;
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .article-item:hover {
      border-color: var(--primary-neon);
    }

    .article-title-link {
      font-size: 0.95rem;
      color: #fff;
      text-overflow: ellipsis;
      white-space: nowrap;
      overflow: hidden;
      margin-right: 16px;
    }

    .article-date {
      font-size: 0.8rem;
      color: var(--text-muted);
      white-space: nowrap;
    }

    .contact-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .qr-box {
      width: 180px;
      height: 180px;
      background: #fff;
      padding: 8px;
      border-radius: 8px;
      display: inline-block;
      margin-top: 16px;
    }

    .qr-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .site-footer {
      background: #06040d;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 50px 0 24px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

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

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

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

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

    .friend-links-area {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 20px 0;
      margin-bottom: 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .friend-links-area span {
      color: #fff;
      font-weight: 600;
    }

    .friend-links-area a {
      color: var(--text-muted);
      font-size: 0.85rem;
    }

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

    .footer-bottom {
      text-align: center;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      font-size: 0.8rem;
    }

    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--bg-card);
      border: 1px solid var(--border-glow);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
      transition: var(--transition);
      text-decoration: none;
    }

    .float-btn:hover {
      background: var(--primary-neon);
      transform: scale(1.1);
    }

    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #0f091f;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-glow);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-actions {
        display: none;
      }
      .grid-3, .grid-2 {
        grid-template-columns: 1fr;
      }
      .process-steps {
        grid-template-columns: 1fr;
      }
      .contact-layout {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 1.85rem;
      }
    }