:root {
      --primary: #e6005c;
      --primary-hover: #c4004e;
      --primary-light: #fff0f5;
      --primary-gradient: linear-gradient(135deg, #ff1493 0%, #e6005c 100%);
      --accent-gold: #ffb703;
      --text-main: #1f1f2e;
      --text-sub: #555566;
      --text-muted: #888899;
      --bg-body: #faf7f8;
      --bg-card: #ffffff;
      --border-color: #f2d6e0;
      --shadow-sm: 0 2px 8px rgba(230, 0, 92, 0.06);
      --shadow-md: 0 8px 24px rgba(230, 0, 92, 0.1);
      --shadow-lg: 0 16px 36px rgba(230, 0, 92, 0.14);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --container-max: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

    .ai-page-logo {
      height: 42px;
      width: auto;
    }

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 10px 14px;
      display: inline-block;
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 30px;
      cursor: pointer;
      transition: all 0.3s ease;
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(230, 0, 92, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(230, 0, 92, 0.45);
      color: #ffffff;
    }

    .btn-outline {
      background: #ffffff;
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary-light);
      color: var(--primary-hover);
    }

    .menu-toggle {
      display: none;
      flex-direction: column;
      justify-content: space-around;
      width: 28px;
      height: 24px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 0;
    }

    .menu-toggle span {
      width: 100%;
      height: 3px;
      background-color: var(--primary);
      border-radius: 2px;
      transition: all 0.3s;
    }

    .hero-section {
      background: radial-gradient(circle at 50% 20%, #ffe4ec 0%, #faf7f8 70%);
      padding: 70px 0 60px;
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
    }

    .hero-title {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      color: #1a1a24;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero-desc {
      font-size: 17px;
      line-height: 1.7;
      color: var(--text-sub);
      max-width: 820px;
      margin: 0 auto 32px;
    }

    .hero-btns {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }

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

    .stat-card {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform 0.25s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
    }

    .stat-val {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

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

    .section {
      padding: 80px 0;
    }

    .section-alt {
      background-color: #ffffff;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-tag {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: inline-block;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

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

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

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

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

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

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .service-icon {
      width: 44px;
      height: 44px;
      background: var(--primary-light);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 20px;
      margin-bottom: 16px;
      font-weight: bold;
    }

    .service-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      flex-grow: 1;
    }

    .card-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 12px;
    }

    .model-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-tag {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 500;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
    }

    .banner-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 32px;
    }

    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #fff;
    }

    .banner-item img {
      width: 100%;
      height: auto;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .banner-item:hover img {
      transform: scale(1.02);
    }

    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      position: relative;
    }

    .flow-step {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .flow-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 14px;
    }

    .flow-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .flow-desc {
      font-size: 13px;
      color: var(--text-sub);
    }

    .eval-box {
      background: #ffffff;
      border: 2px solid var(--primary);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
    }

    .eval-score-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 24px;
      margin-bottom: 24px;
      flex-wrap: wrap;
      gap: 20px;
    }

    .eval-score-main {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-badge {
      font-size: 44px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-meta {
      display: flex;
      flex-direction: column;
    }

    .score-stars {
      color: var(--accent-gold);
      font-size: 20px;
      letter-spacing: 2px;
    }

    .score-summary {
      font-size: 15px;
      color: var(--text-sub);
      margin-top: 4px;
    }

    .table-container {
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      background: #ffffff;
      text-align: left;
    }

    .eval-table th, .eval-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #f0f0f0;
      font-size: 14px;
    }

    .eval-table th {
      background: var(--primary-light);
      font-weight: 700;
      color: var(--text-main);
    }

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

    .eval-table .highlight {
      background: #fffdfd;
      font-weight: 600;
      color: var(--primary);
    }

    .compare-check {
      color: #059669;
      font-weight: 800;
    }

    .compare-cross {
      color: #9ca3af;
    }

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

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      text-align: center;
      position: relative;
    }

    .token-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }

    .token-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .token-price {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 12px;
    }

    .token-price span {
      font-size: 14px;
      font-weight: 400;
      color: var(--text-muted);
    }

    .token-features {
      list-style: none;
      margin: 16px 0 24px;
      text-align: left;
      font-size: 14px;
      color: var(--text-sub);
    }

    .token-features li {
      padding: 6px 0;
      border-bottom: 1px dashed #f2f2f2;
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 18px;
      position: relative;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .review-avatar {
      width: 42px;
      height: 42px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }

    .review-meta h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

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

    .faq-list {
      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;
      transition: all 0.25s ease;
    }

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

    .faq-question {
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 20px;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.3s;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background-color: #fafbfc;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      padding: 0 22px;
    }

    .faq-item.active .faq-answer {
      padding: 0 22px 18px;
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 24px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: transform 0.25s ease;
    }

    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .article-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-desc {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    .article-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-link:hover {
      color: var(--primary-hover);
    }

    .form-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #dcdce6;
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background-color: #fbfbfc;
      transition: border-color 0.25s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #ffffff;
    }

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

    .contact-info-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .contact-info-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .contact-info-icon {
      width: 36px;
      height: 36px;
      background: var(--primary-light);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 14px;
      flex-shrink: 0;
    }

    .contact-info-text h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    .contact-info-text p {
      font-size: 14px;
      color: var(--text-sub);
    }

    .agent-card {
      background: linear-gradient(135deg, #fff5f8 0%, #ffffff 100%);
      border: 2px dashed var(--primary);
      border-radius: var(--radius-lg);
      padding: 36px;
      text-align: center;
      margin-top: 40px;
    }

    .site-footer {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 36px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-sub);
      margin-top: 12px;
      line-height: 1.6;
      max-width: 300px;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

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

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

    .footer-links li a {
      font-size: 14px;
      color: var(--text-sub);
    }

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

    .footer-qr {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }

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

    .footer-qr span {
      font-size: 12px;
      color: var(--text-sub);
    }

    .footer-bottom {
      border-top: 1px solid #f0f0f0;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 16px;
    }

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

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

    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 40px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      box-shadow: var(--shadow-md);
      cursor: pointer;
      position: relative;
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
    }

    .float-qr-pop {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      flex-direction: column;
      align-items: center;
      width: 140px;
      text-align: center;
    }

    .float-qr-pop img {
      width: 110px;
      height: 110px;
      margin-bottom: 6px;
    }

    .float-qr-pop span {
      font-size: 12px;
      color: var(--text-main);
      font-weight: 600;
    }

    .float-btn:hover .float-qr-pop {
      display: flex;
    }

    @media (max-width: 992px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .hero-stats {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 16px 0;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        width: 100%;
        text-align: center;
        padding: 12px;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-desc {
        font-size: 15px;
      }
      .grid-4, .grid-3, .grid-2, .flow-steps, .banner-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .eval-score-bar {
        flex-direction: column;
        align-items: flex-start;
      }
    }