:root {
      --primary: #e11d48;
      --primary-hover: #be123c;
      --primary-light: #ffe4e6;
      --primary-subtle: #fff1f2;
      --accent: #f43f5e;
      --dark: #1e293b;
      --gray: #64748b;
      --light-bg: #fff5f7;
      --card-bg: #ffffff;
      --border: #fecdd3;
      --radius: 12px;
      --shadow-sm: 0 2px 8px rgba(225, 29, 72, 0.06);
      --shadow-md: 0 8px 24px rgba(225, 29, 72, 0.08);
      --shadow-lg: 0 16px 36px rgba(225, 29, 72, 0.12);
      --transition: all 0.25s ease;
    }
    * {
      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, sans-serif;
      background-color: #fff9fa;
      color: #334155;
      line-height: 1.6;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    .header-bar {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap .ai-page-logo {
      height: 42px;
      width: auto;
    }
    .brand-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links a {
      padding: 8px 14px;
      font-size: 0.95rem;
      color: #475569;
      font-weight: 500;
      border-radius: 6px;
    }
    .nav-links a:hover {
      color: var(--primary);
      background: var(--primary-subtle);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }
    .btn-primary {
      background: var(--primary);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.28);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(225, 29, 72, 0.35);
    }
    .btn-outline {
      background: #ffffff;
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-outline:hover {
      background: var(--primary-subtle);
    }
    .btn-sm {
      padding: 6px 14px;
      font-size: 0.85rem;
    }
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 4px;
    }
    .menu-toggle span {
      width: 24px;
      height: 2px;
      background: var(--dark);
      transition: var(--transition);
    }
    .hero-section {
      padding: 70px 0 60px;
      background: linear-gradient(135deg, #fff0f3 0%, #ffe4e6 50%, #ffffff 100%);
      border-bottom: 1px solid var(--border);
    }
    .hero-wrap {
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
    }
    .badge {
      display: inline-block;
      padding: 6px 16px;
      background: #ffffff;
      color: var(--primary);
      border: 1px solid var(--border);
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
    }
    .hero-title {
      font-size: 2.3rem;
      line-height: 1.3;
      color: var(--dark);
      font-weight: 800;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      color: var(--primary);
    }
    .hero-desc {
      font-size: 1.1rem;
      color: #64748b;
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .hero-cta {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }
    .hero-stat-card {
      background: #ffffff;
      padding: 20px 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }
    .hero-stat-num {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .hero-stat-label {
      font-size: 0.85rem;
      color: #64748b;
    }
    .section-padding {
      padding: 80px 0;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-tag {
      color: var(--primary);
      font-weight: 700;
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 14px;
    }
    .section-subtitle {
      font-size: 1rem;
      color: #64748b;
    }
    .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: 24px;
    }
    .card {
      background: var(--card-bg);
      border-radius: var(--radius);
      border: 1px solid #fce7ec;
      padding: 28px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--border);
    }
    .card-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-subtle);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.4rem;
      margin-bottom: 18px;
      font-weight: 700;
    }
    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }
    .card-text {
      font-size: 0.92rem;
      color: #64748b;
      line-height: 1.6;
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }
    .tag-pill {
      font-size: 0.75rem;
      background: #fdf2f4;
      color: #e11d48;
      padding: 4px 10px;
      border-radius: 20px;
      border: 1px solid #fedfe5;
    }
    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      padding: 30px;
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }
    .model-chip {
      background: #fff0f3;
      color: #be123c;
      padding: 8px 16px;
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 600;
      border: 1px solid #fecdd3;
    }
    .media-card {
      background: #ffffff;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }
    .media-card-img-wrap {
      aspect-ratio: 16 / 9;
      background: #ffe4e6;
      overflow: hidden;
    }
    .media-card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .media-card-body {
      padding: 20px;
    }
    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 30px;
    }
    .banner-item {
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }
    .rating-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #e11d48;
      color: #ffffff;
      padding: 6px 14px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 0.95rem;
      margin-bottom: 20px;
    }
    .table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
    }
    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    th, td {
      padding: 16px 20px;
      border-bottom: 1px solid #fce7ec;
      font-size: 0.95rem;
    }
    th {
      background: #fff1f2;
      color: var(--dark);
      font-weight: 700;
    }
    tr:last-child td {
      border-bottom: none;
    }
    .highlight-cell {
      color: var(--primary);
      font-weight: 700;
      background: #fff8f9;
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .faq-header {
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 700;
      color: var(--dark);
      font-size: 1.05rem;
    }
    .faq-header:hover {
      color: var(--primary);
      background: var(--primary-subtle);
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: var(--transition);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-content {
      display: none;
      padding: 0 24px 20px;
      color: #64748b;
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .faq-item.active .faq-content {
      display: block;
    }
    .testimonial-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
      border-top: 1px solid #fff0f3;
      padding-top: 14px;
    }
    .testi-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #ffe4e6;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }
    .testi-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--dark);
    }
    .testi-role {
      font-size: 0.8rem;
      color: #94a3b8;
    }
    .form-wrap {
      background: #ffffff;
      padding: 40px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      box-shadow: var(--shadow-md);
      max-width: 700px;
      margin: 0 auto;
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      font-size: 0.9rem;
      color: var(--dark);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: 8px;
      border: 1px solid #cbd5e1;
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
      background: #f8fafc;
    }
    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.15);
    }
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: center;
    }
    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .contact-info-item {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 0.95rem;
      color: #475569;
    }
    .qr-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .qr-card img {
      width: 150px;
      height: 150px;
      margin: 0 auto 12px;
      border-radius: 8px;
    }
    .article-list-wrap {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .article-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 0;
      border-bottom: 1px solid #f1f5f9;
      font-size: 0.95rem;
    }
    .article-item:last-child {
      border-bottom: none;
    }
    .article-item a:hover {
      color: var(--primary);
    }
    .footer-bar {
      background: #ffffff;
      border-top: 1px solid var(--border);
      padding: 60px 0 30px;
      color: #64748b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      margin-top: 8px;
    }
    .footer-friend-links a {
      color: #64748b;
      padding: 2px 8px;
      background: #fff1f2;
      border-radius: 4px;
    }
    .footer-friend-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #94a3b8;
    }
    .float-kefu {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4);
      cursor: pointer;
      font-size: 1.2rem;
      transition: var(--transition);
      border: none;
    }
    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary-hover);
    }
    @media (max-width: 992px) {
      .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .banner-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        display: none;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 1.75rem;
      }
      .grid-2, .grid-3, .grid-4, .banner-gallery, .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }