:root {
      --primary-yellow: #FFD000;
      --primary-hover: #E5BB00;
      --accent-gold: #FFA800;
      --dark-text: #1E1E1E;
      --sub-text: #595959;
      --light-bg: #FCFAF2;
      --white: #FFFFFF;
      --card-bg: #FFFFFF;
      --card-border: #F0E6C8;
      --yellow-badge: #FFF5C2;
      --yellow-badge-border: #FFE266;
      --shadow-sm: 0 4px 12px rgba(230, 180, 0, 0.08);
      --shadow-md: 0 8px 24px rgba(210, 160, 0, 0.12);
      --shadow-hover: 0 12px 32px rgba(255, 190, 0, 0.22);
      --transition: all 0.3s ease;
      --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, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--light-bg);
      color: var(--dark-text);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: radial-gradient(var(--yellow-badge) 1px, transparent 1px);
      background-size: 24px 24px;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    ul, ol {
      list-style: none;
    }

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

    .header-wrap {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--primary-yellow);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      max-height: 48px;
    }

    .brand-logo img.ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links li a {
      font-size: 15px;
      font-weight: 600;
      color: var(--dark-text);
      padding: 8px 14px;
      border-radius: 6px;
      transition: var(--transition);
      display: inline-block;
    }

    .nav-links li a:hover {
      color: #000;
      background: var(--yellow-badge);
    }

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

    .btn-main {
      background: var(--primary-yellow);
      color: #000;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: 8px;
      border: 1px solid var(--accent-gold);
      box-shadow: 0 4px 14px rgba(255, 208, 0, 0.4);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      cursor: pointer;
      transition: var(--transition);
      text-align: center;
    }

    .btn-main:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      color: #000;
    }

    .btn-outline {
      background: #FFF;
      color: var(--dark-text);
      font-weight: 600;
      padding: 9px 20px;
      border-radius: 8px;
      border: 1.5px solid var(--primary-yellow);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: var(--transition);
    }

    .btn-outline:hover {
      background: var(--yellow-badge);
      border-color: var(--accent-gold);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--dark-text);
      padding: 4px;
    }

    .hero-section {
      padding: 70px 0 60px;
      text-align: center;
      position: relative;
    }

    .hero-tag {
      display: inline-block;
      background: var(--yellow-badge);
      color: #8C6200;
      font-weight: 700;
      font-size: 13px;
      padding: 6px 16px;
      border-radius: 30px;
      border: 1px solid var(--yellow-badge-border);
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }

    .hero-title {
      font-size: 40px;
      font-weight: 900;
      color: #111;
      line-height: 1.25;
      margin-bottom: 20px;
      max-width: 900px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-title span {
      background: linear-gradient(180deg, transparent 65%, var(--primary-yellow) 65%);
      padding: 0 4px;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--sub-text);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

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

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .stat-card {
      background: var(--white);
      border: 1px solid var(--card-border);
      padding: 24px 16px;
      border-radius: 12px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
      border-top: 4px solid var(--primary-yellow);
    }

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

    .stat-num {
      font-size: 32px;
      font-weight: 900;
      color: #111;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 14px;
      color: var(--sub-text);
      font-weight: 500;
    }

    .section-wrap {
      padding: 80px 0;
      border-bottom: 1px solid #ECE3CA;
    }

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

    .section-subtitle {
      font-size: 13px;
      text-transform: uppercase;
      font-weight: 800;
      color: #B27B00;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: inline-block;
      background: var(--yellow-badge);
      padding: 4px 12px;
      border-radius: 20px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: #1A1A1A;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--sub-text);
    }

    .about-box {
      background: var(--white);
      border-radius: 16px;
      border: 1px solid var(--card-border);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .about-intro-text {
      font-size: 17px;
      line-height: 1.8;
      color: #333;
      margin-bottom: 30px;
    }

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

    .feature-point-card {
      background: var(--light-bg);
      border: 1px solid #EEDB9F;
      padding: 24px;
      border-radius: 10px;
      transition: var(--transition);
    }

    .feature-point-card:hover {
      background: #FFF;
      border-color: var(--primary-yellow);
      box-shadow: var(--shadow-sm);
    }

    .feature-point-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #111;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .feature-point-card h3::before {
      content: "";
      display: inline-block;
      width: 8px;
      height: 16px;
      background: var(--primary-yellow);
      border-radius: 2px;
    }

    .feature-point-card p {
      font-size: 14px;
      color: var(--sub-text);
      line-height: 1.6;
    }

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

    .service-card {
      background: var(--white);
      border-radius: 14px;
      border: 1px solid var(--card-border);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

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

    .service-badge {
      display: inline-block;
      align-self: flex-start;
      font-size: 12px;
      font-weight: 700;
      color: #7A5300;
      background: var(--yellow-badge);
      padding: 3px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }

    .service-title {
      font-size: 20px;
      font-weight: 700;
      color: #111;
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--sub-text);
      margin-bottom: 16px;
      flex-grow: 1;
      line-height: 1.6;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-tag {
      font-size: 12px;
      background: #F4F1E6;
      padding: 3px 8px;
      border-radius: 4px;
      color: #444;
    }

    .model-marquee-section {
      background: #1A1A1A;
      color: #FFF;
      padding: 36px 0;
      overflow: hidden;
    }

    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin-top: 16px;
    }

    .model-chip {
      background: #2C2C2C;
      color: var(--primary-yellow);
      border: 1px solid #444;
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 600;
    }

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

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

    .step-badge {
      width: 36px;
      height: 36px;
      background: var(--primary-yellow);
      color: #000;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      margin-bottom: 16px;
      box-shadow: 0 4px 10px rgba(255, 208, 0, 0.4);
    }

    .step-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #111;
    }

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

    .eval-card {
      background: var(--white);
      border-radius: 16px;
      border: 2px solid var(--primary-yellow);
      padding: 36px;
      box-shadow: var(--shadow-md);
      margin-bottom: 30px;
    }

    .eval-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid #F0E6C8;
      padding-bottom: 20px;
      margin-bottom: 24px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .eval-score-box {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .eval-score-num {
      font-size: 42px;
      font-weight: 900;
      color: #B58000;
    }

    .eval-stars {
      color: #FF9900;
      font-size: 22px;
      letter-spacing: 2px;
    }

    .table-responsive {
      overflow-x: auto;
      width: 100%;
    }

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

    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border-bottom: 1px solid #F4EEDC;
      font-size: 15px;
    }

    .eval-table th {
      background: var(--yellow-badge);
      font-weight: 700;
      color: #333;
    }

    .eval-table tr:hover td {
      background: #FFFCF2;
    }

    .highlight-cell {
      font-weight: 700;
      color: #9E6B00;
    }

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

    .review-card {
      background: var(--white);
      padding: 24px;
      border-radius: 12px;
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-content {
      font-size: 14px;
      color: #333;
      line-height: 1.7;
      margin-bottom: 16px;
      font-style: italic;
    }

    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed #E8DEBE;
      padding-top: 12px;
    }

    .reviewer-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-yellow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #000;
    }

    .reviewer-name {
      font-size: 14px;
      font-weight: 700;
      color: #111;
    }

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

    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: #111;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFF;
      user-select: none;
    }

    .faq-question:hover {
      background: var(--yellow-badge);
    }

    .faq-toggle-icon {
      font-size: 18px;
      color: #B58000;
      font-weight: 900;
    }

    .faq-answer {
      padding: 0 24px 18px;
      font-size: 14px;
      color: var(--sub-text);
      line-height: 1.7;
      display: none;
      background: #FFF;
      border-top: 1px solid #FAF4E6;
    }

    .faq-item.active .faq-answer {
      display: block;
      padding-top: 12px;
    }

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

    .gallery-card {
      background: var(--white);
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--card-border);
      box-shadow: var(--shadow-sm);
    }

    .gallery-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #ECE5CF;
      overflow: hidden;
    }

    .gallery-img-wrap.square {
      aspect-ratio: 1 / 1;
    }

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

    .gallery-card:hover .gallery-img-wrap img {
      transform: scale(1.05);
    }

    .gallery-info {
      padding: 16px;
    }

    .gallery-title {
      font-size: 16px;
      font-weight: 700;
      color: #111;
      margin-bottom: 6px;
    }

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

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

    .article-card {
      background: var(--white);
      padding: 20px;
      border-radius: 12px;
      border: 1px solid var(--card-border);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-card:hover {
      border-color: var(--primary-yellow);
      box-shadow: var(--shadow-sm);
      transform: translateY(-3px);
    }

    .article-title {
      font-size: 16px;
      font-weight: 700;
      color: #111;
      margin-bottom: 8px;
    }

    .article-meta {
      font-size: 12px;
      color: #999;
      margin-top: 12px;
    }

    .contact-container {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 30px;
      background: var(--white);
      border-radius: 16px;
      border: 1px solid var(--card-border);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .contact-info-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
    }

    .contact-icon-badge {
      width: 36px;
      height: 36px;
      background: var(--yellow-badge);
      border: 1px solid var(--yellow-badge-border);
      color: #8C6200;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-weight: 800;
      flex-shrink: 0;
    }

    .contact-text-title {
      font-size: 14px;
      font-weight: 700;
      color: #111;
    }

    .contact-text-val {
      font-size: 14px;
      color: var(--sub-text);
      word-break: break-all;
    }

    .qr-box {
      margin-top: 10px;
      text-align: center;
      background: var(--light-bg);
      border: 1px dashed var(--accent-gold);
      padding: 16px;
      border-radius: 10px;
      max-width: 200px;
    }

    .qr-box img {
      max-width: 140px;
      height: auto;
      border-radius: 6px;
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      color: #222;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1.5px solid #DDD0B0;
      border-radius: 8px;
      font-size: 14px;
      background: #FAFAFA;
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      background: #FFF;
      border-color: var(--primary-yellow);
      box-shadow: 0 0 0 3px rgba(255, 208, 0, 0.25);
    }

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

    .footer-wrap {
      background: #111111;
      color: #BBB;
      padding: 60px 0 30px;
      border-top: 4px solid var(--primary-yellow);
    }

    .footer-inner {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      color: #FFF;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      color: #888;
    }

    .footer-col h5 {
      color: #FFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h5::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--primary-yellow);
    }

    .footer-links li {
      margin-bottom: 8px;
    }

    .footer-links a {
      font-size: 14px;
      color: #999;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--primary-yellow);
      padding-left: 4px;
    }

    .friend-links-area {
      border-top: 1px solid #282828;
      padding-top: 24px;
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
    }

    .friend-links-label {
      font-size: 13px;
      font-weight: 700;
      color: #AAA;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links-list a {
      font-size: 13px;
      color: #777;
      transition: var(--transition);
    }

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

    .footer-bottom {
      border-top: 1px solid #222;
      padding-top: 24px;
      margin-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #666;
    }

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

    .float-btn {
      width: 46px;
      height: 46px;
      background: var(--primary-yellow);
      border: 1px solid var(--accent-gold);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: #000;
      cursor: pointer;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
    }

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

    .agent-banner {
      background: linear-gradient(135deg, #FFF9DE 0%, #FFF0B3 100%);
      border: 2px dashed var(--accent-gold);
      border-radius: 16px;
      padding: 36px;
      text-align: center;
    }

    .agent-title {
      font-size: 26px;
      font-weight: 800;
      color: #222;
      margin-bottom: 12px;
    }

    .agent-desc {
      font-size: 15px;
      color: #665214;
      max-width: 680px;
      margin: 0 auto 20px;
      line-height: 1.7;
    }

    @media (max-width: 992px) {
      .hero-stats-grid, .feature-points-grid, .services-grid, .workflow-steps-grid, .reviews-grid, .articles-grid, .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-inner {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-container {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFF;
        flex-direction: column;
        padding: 20px;
        border-bottom: 2px solid var(--primary-yellow);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-stats-grid, .feature-points-grid, .services-grid, .workflow-steps-grid, .reviews-grid, .articles-grid, .gallery-grid {
        grid-template-columns: 1fr;
      }
      .footer-inner {
        grid-template-columns: 1fr;
      }
    }