:root {
      --bg-base: #0c0915;
      --bg-surface: #15102a;
      --bg-card: #1c1538;
      --bg-card-hover: #261c4d;
      --primary-pink: #ff2a85;
      --primary-purple: #9d4edd;
      --neon-cyan: #00f0ff;
      --text-main: #f5f3ff;
      --text-muted: #b8b0d4;
      --text-dim: #7f75a3;
      --border-color: rgba(255, 42, 133, 0.22);
      --border-light: rgba(157, 78, 221, 0.35);
      --glow-pink: 0 0 20px rgba(255, 42, 133, 0.35);
      --glow-purple: 0 0 25px rgba(157, 78, 221, 0.35);
      --container-width: 1200px;
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 15%, rgba(255, 42, 133, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(157, 78, 221, 0.15) 0%, transparent 45%),
        linear-gradient(180deg, #0c0915 0%, #100b1e 50%, #0c0915 100%);
      background-attachment: fixed;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

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

    /* Typography & Badges */
    .section-title-wrap {
      text-align: center;
      margin-bottom: 48px;
    }

    .badge {
      display: inline-block;
      padding: 4px 14px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-pink);
      background: rgba(255, 42, 133, 0.12);
      border: 1px solid rgba(255, 42, 133, 0.35);
      border-radius: 50px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
      text-shadow: 0 2px 10px rgba(0,0,0,0.5);
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(12, 9, 21, 0.88);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

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

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

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

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      letter-spacing: 0.5px;
    }

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

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
      border-radius: 6px;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: #fff;
      background: rgba(255, 42, 133, 0.15);
      text-shadow: 0 0 8px var(--primary-pink);
    }

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

    .btn-cyber {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 700;
      border-radius: 8px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-pink {
      background: linear-gradient(135deg, var(--primary-pink) 0%, var(--primary-purple) 100%);
      color: #ffffff;
      box-shadow: var(--glow-pink);
    }

    .btn-pink:hover {
      box-shadow: 0 0 25px rgba(255, 42, 133, 0.65);
      transform: translateY(-2px);
    }

    .btn-outline {
      background: rgba(21, 16, 42, 0.6);
      border-color: var(--border-light);
      color: #ffffff;
    }

    .btn-outline:hover {
      border-color: var(--primary-pink);
      color: #ffffff;
      background: rgba(255, 42, 133, 0.15);
    }

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

    /* Hero Section (strictly NO images) */
    .hero-section {
      padding: 90px 0 80px;
      position: relative;
      text-align: center;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(157, 78, 221, 0.15);
      border: 1px solid var(--border-light);
      border-radius: 50px;
      color: #fff;
      font-size: 14px;
      margin-bottom: 24px;
    }

    .hero-badge .dot {
      width: 8px;
      height: 8px;
      background: var(--neon-cyan);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--neon-cyan);
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #ffffff;
      text-shadow: 0 0 25px rgba(255, 42, 133, 0.3);
    }

    .hero-title span {
      color: var(--primary-pink);
      background: linear-gradient(135deg, #ff2a85 0%, #00f0ff 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.8;
    }

    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 40px;
    }

    .stat-card {
      background: rgba(28, 21, 56, 0.7);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px 16px;
      backdrop-filter: blur(8px);
      transition: var(--transition);
    }

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

    .stat-value {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 4px;
    }

    .stat-value em {
      font-style: normal;
      font-size: 18px;
      color: var(--primary-pink);
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* General Section Padding */
    .section-wrap {
      padding: 80px 0;
      border-bottom: 1px solid rgba(255, 42, 133, 0.12);
    }

    /* Grid Layouts */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
      align-items: center;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    /* Feature Cards */
    .cyber-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .cyber-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--primary-pink), transparent);
      opacity: 0;
      transition: var(--transition);
    }

    .cyber-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-light);
      transform: translateY(-4px);
      box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    }

    .cyber-card:hover::before {
      opacity: 1;
    }

    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: rgba(255, 42, 133, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-pink);
      font-size: 22px;
      margin-bottom: 18px;
      border: 1px solid rgba(255, 42, 133, 0.3);
    }

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

    .card-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Model Badges Grid */
    .models-stream {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .model-tag {
      padding: 6px 14px;
      background: rgba(21, 16, 42, 0.85);
      border: 1px solid rgba(157, 78, 221, 0.3);
      border-radius: 6px;
      font-size: 13px;
      color: #e2dcfa;
      transition: var(--transition);
    }

    .model-tag:hover {
      border-color: var(--primary-pink);
      color: #fff;
      box-shadow: 0 0 10px rgba(255, 42, 133, 0.3);
    }

    /* Media/Cases Section */
    .media-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      transition: var(--transition);
    }

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

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

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

    .media-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

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

    .media-body {
      padding: 20px;
    }

    /* Comparison Table */
    .eval-score-banner {
      background: linear-gradient(135deg, rgba(255, 42, 133, 0.15) 0%, rgba(157, 78, 221, 0.15) 100%);
      border: 1px solid var(--primary-pink);
      border-radius: var(--radius);
      padding: 24px 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 32px;
    }

    .eval-stars {
      color: #ffb703;
      font-size: 24px;
      letter-spacing: 4px;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
    }

    .cyber-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      background: var(--bg-surface);
    }

    .cyber-table th, 
    .cyber-table td {
      padding: 16px 20px;
      border-bottom: 1px solid rgba(255, 42, 133, 0.12);
      font-size: 14px;
    }

    .cyber-table th {
      background: rgba(28, 21, 56, 0.9);
      color: #fff;
      font-weight: 700;
    }

    .cyber-table tr:hover td {
      background: rgba(255, 42, 133, 0.05);
    }

    .cyber-table .highlight {
      color: var(--primary-pink);
      font-weight: 700;
    }

    /* Form Styles */
    .form-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--glow-purple);
    }

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

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: #e2dcfa;
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      background: rgba(12, 9, 21, 0.85);
      border: 1px solid rgba(157, 78, 221, 0.4);
      border-radius: 8px;
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary-pink);
      box-shadow: 0 0 10px rgba(255, 42, 133, 0.3);
    }

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

    /* Reviews Grid */
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 20px;
      padding-top: 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 16px;
    }

    .author-name {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
    }

    .author-role {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* FAQ Accordion */
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }

    .faq-question::after {
      content: "+";
      font-size: 20px;
      color: var(--primary-pink);
      transition: transform 0.3s;
    }

    .faq-item.active .faq-question::after {
      content: "-";
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      padding-bottom: 20px;
    }

    /* Token Table & Process */
    .process-step {
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 50px;
      height: 50px;
      margin: 0 auto 16px;
      background: rgba(255, 42, 133, 0.15);
      border: 2px solid var(--primary-pink);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      box-shadow: var(--glow-pink);
    }

    /* Articles / News */
    .news-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .news-item-link {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 20px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      transition: var(--transition);
    }

    .news-item-link:hover {
      border-color: var(--primary-pink);
      transform: translateX(6px);
      color: #fff;
    }

    /* Contact Details */
    .contact-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      text-align: center;
    }

    .qr-container {
      width: 160px;
      height: 160px;
      margin: 0 auto 16px;
      padding: 8px;
      background: #fff;
      border-radius: 8px;
    }

    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    /* Footer */
    .site-footer {
      background: #090611;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 32px;
      color: var(--text-dim);
      font-size: 13px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-title {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

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

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

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

    .friendship-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      margin-bottom: 24px;
    }

    .friendship-links a {
      color: var(--text-muted);
      font-size: 13px;
    }

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

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* Floating Customer Service & BackToTop */
    .floating-tools {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--bg-card);
      border: 1px solid var(--primary-pink);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(0,0,0,0.5);
      transition: var(--transition);
    }

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

    /* Responsive */
    @media (max-width: 992px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #110d21;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
      }

      .nav-links.show {
        display: flex;
      }

      .mobile-menu-btn {
        display: block;
      }

      .grid-4, .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }

      .grid-2 {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 600px) {
      .hero-title {
        font-size: 28px;
      }

      .grid-4, .grid-3, .hero-stats-grid {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .eval-score-banner {
        flex-direction: column;
        text-align: center;
        gap: 12px;
      }
    }