:root {
      --primary: #e6005c;
      --primary-hover: #c4004e;
      --primary-light: #fff0f5;
      --primary-soft: #fce4ec;
      --secondary: #ff3385;
      --dark: #1f1f2e;
      --gray-900: #2b2b36;
      --gray-700: #4a4a5a;
      --gray-500: #717182;
      --gray-200: #edeef2;
      --gray-100: #f7f8fa;
      --white: #ffffff;
      --shadow-sm: 0 4px 12px rgba(230, 0, 92, 0.06);
      --shadow-md: 0 10px 30px rgba(230, 0, 92, 0.08);
      --shadow-lg: 0 16px 40px rgba(230, 0, 92, 0.12);
      --radius: 12px;
      --radius-sm: 6px;
      --transition: all 0.28s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: #faf9fb;
      color: var(--gray-700);
      line-height: 1.65;
      overflow-x: hidden;
      padding-top: 76px;
    }

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      z-index: 1000;
      border-bottom: 1px solid rgba(230, 0, 92, 0.1);
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }

    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--gray-900);
      border-radius: var(--radius-sm);
    }

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

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: var(--primary);
      color: var(--white) !important;
      font-weight: 600;
      border-radius: 30px;
      box-shadow: 0 4px 14px rgba(230, 0, 92, 0.25);
    }

    .nav-cta:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--dark);
      margin: 5px 0;
      transition: var(--transition);
    }

    .section-padding {
      padding: 80px 0;
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      background: var(--primary-light);
      color: var(--primary);
      border: 1px solid rgba(230, 0, 92, 0.2);
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 14px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--dark);
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--gray-500);
      line-height: 1.6;
    }

    .hero-section {
      background: radial-gradient(circle at 85% 15%, #ffe6f0 0%, #fffbfd 45%, #fdf5f8 100%);
      padding: 80px 0 90px 0;
      border-bottom: 1px solid rgba(230, 0, 92, 0.08);
      position: relative;
    }

    .hero-inner {
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid #ffd0e1;
      padding: 8px 20px;
      border-radius: 40px;
      color: var(--primary);
      font-size: 0.9rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 900;
      color: var(--dark);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-h1 span {
      color: var(--primary);
      position: relative;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--gray-700);
      line-height: 1.7;
      margin-bottom: 34px;
    }

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

    .btn-main-action {
      background: linear-gradient(135deg, #e6005c, #ff3385);
      color: var(--white);
      padding: 16px 36px;
      border-radius: 36px;
      font-size: 1.1rem;
      font-weight: 700;
      box-shadow: 0 10px 25px rgba(230, 0, 92, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-main-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(230, 0, 92, 0.4);
      color: #fff;
    }

    .btn-secondary-action {
      background: var(--white);
      color: var(--dark);
      border: 1px solid #e1e3ea;
      padding: 16px 32px;
      border-radius: 36px;
      font-size: 1.05rem;
      font-weight: 600;
      box-shadow: 0 4px 10px rgba(0,0,0,0.03);
    }

    .btn-secondary-action:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    .hero-chips-wrap {
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid #f6dbe6;
      border-radius: var(--radius);
      padding: 20px 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-chips-title {
      font-size: 0.85rem;
      color: var(--gray-500);
      margin-bottom: 12px;
      text-transform: uppercase;
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    .model-pills {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-pill {
      background: #faf4f7;
      color: #7d264a;
      border: 1px solid #fad2e2;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 500;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -40px;
      position: relative;
      z-index: 2;
    }

    .stat-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-md);
      border: 1px solid #fce8f0;
      transition: var(--transition);
    }

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

    .stat-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--gray-900);
      margin-bottom: 4px;
    }

    .stat-sub {
      font-size: 0.8rem;
      color: var(--gray-500);
    }

    .about-box {
      background: var(--white);
      border-radius: var(--radius);
      border: 1px solid #fbe5ef;
      box-shadow: var(--shadow-sm);
      padding: 40px;
    }

    .about-intro-text {
      font-size: 1.1rem;
      color: var(--gray-700);
      line-height: 1.8;
      margin-bottom: 30px;
    }

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

    .about-pillar-item {
      background: #fffdfd;
      border: 1px solid #f6e6ed;
      border-radius: var(--radius-sm);
      padding: 24px;
      border-top: 3px solid var(--primary);
    }

    .about-pillar-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .about-pillar-desc {
      font-size: 0.92rem;
      color: var(--gray-700);
      line-height: 1.6;
    }

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

    .service-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 28px;
      border: 1px solid #f4e3eb;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: #f7b4cf;
    }

    .service-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
      font-weight: bold;
    }

    .service-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--gray-700);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-features {
      border-top: 1px solid var(--gray-100);
      padding-top: 14px;
      font-size: 0.85rem;
      color: var(--gray-500);
    }

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

    .pipeline-step {
      background: var(--white);
      border: 1px solid #f5e4ec;
      border-radius: var(--radius);
      padding: 26px 20px;
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .pipeline-num {
      position: absolute;
      top: -14px;
      left: 20px;
      background: var(--primary);
      color: var(--white);
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
      box-shadow: 0 4px 8px rgba(230,0,92,0.3);
    }

    .pipeline-title {
      font-size: 1.08rem;
      font-weight: 700;
      color: var(--dark);
      margin-top: 8px;
      margin-bottom: 10px;
    }

    .pipeline-desc {
      font-size: 0.9rem;
      color: var(--gray-700);
      line-height: 1.55;
    }

    .review-score-badge {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      background: #fff0f5;
      border: 1px solid #ffd1e1;
      border-radius: var(--radius);
      padding: 20px;
      margin-bottom: 30px;
      text-align: center;
    }

    .score-big {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-info {
      text-align: left;
    }

    .score-stars {
      color: #ff9900;
      font-size: 1.2rem;
      margin-bottom: 2px;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      background: var(--white);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      border: 1px solid #f8e5ee;
    }

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .custom-table th,
    .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f3e9ee;
      font-size: 0.95rem;
    }

    .custom-table th {
      background: #fff5f8;
      color: var(--dark);
      font-weight: 700;
    }

    .custom-table tr:hover td {
      background: #fffcfd;
    }

    .badge-highlight {
      display: inline-block;
      padding: 3px 8px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 4px;
      font-weight: 600;
      font-size: 0.85rem;
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: center;
    }

    .gallery-img-card {
      background: var(--white);
      border: 1px solid #f5e4ec;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .gallery-img-card img {
      width: 100%;
      height: auto;
      display: block;
      transition: var(--transition);
    }

    .gallery-img-card:hover img {
      transform: scale(1.02);
    }

    .gallery-caption {
      padding: 16px;
      background: var(--white);
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--gray-900);
      border-top: 1px solid #faf0f4;
    }

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

    .comment-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 24px;
      border: 1px solid #f6e5ed;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .comment-text {
      font-size: 0.95rem;
      color: var(--gray-700);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .comment-author-box {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f7edf2;
      padding-top: 14px;
    }

    .comment-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .comment-user-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--dark);
    }

    .comment-user-role {
      font-size: 0.8rem;
      color: var(--gray-500);
    }

    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--white);
      border: 1px solid #f6e6ed;
      border-radius: var(--radius);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 600;
      color: var(--dark);
      font-size: 1.02rem;
      user-select: none;
    }

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

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.28s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fdfafd;
      padding: 0 24px;
      font-size: 0.93rem;
      color: var(--gray-700);
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 16px 24px 20px 24px;
      border-top: 1px solid #fceef4;
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .article-item-card {
      background: var(--white);
      border: 1px solid #f8e5ee;
      border-radius: var(--radius-sm);
      padding: 18px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .article-item-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }

    .article-title {
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--dark);
      line-height: 1.45;
      margin-bottom: 12px;
    }

    .article-link-btn {
      font-size: 0.82rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .form-contact-wrap {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
      background: var(--white);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-md);
      border: 1px solid #f6e3ec;
    }

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

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--dark);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #dddfe6;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--dark);
      background: #fafafc;
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: var(--white);
      box-shadow: 0 0 0 3px rgba(230, 0, 92, 0.1);
    }

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

    .form-submit-btn {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: var(--white);
      border: none;
      border-radius: 30px;
      padding: 14px 36px;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      width: 100%;
      box-shadow: 0 6px 18px rgba(230, 0, 92, 0.25);
      transition: var(--transition);
    }

    .form-submit-btn:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
    }

    .contact-card-info {
      background: #fffcfd;
      border: 1px solid #f8e5ee;
      border-radius: var(--radius-sm);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 16px;
      border-left: 4px solid var(--primary);
      padding-left: 10px;
    }

    .contact-list li {
      font-size: 0.92rem;
      color: var(--gray-700);
      margin-bottom: 12px;
      line-height: 1.5;
    }

    .contact-list strong {
      color: var(--dark);
    }

    .qr-area {
      text-align: center;
      margin-top: 20px;
      padding-top: 18px;
      border-top: 1px dashed #f2dbe6;
    }

    .qr-area img {
      width: 130px;
      height: 130px;
      display: block;
      margin: 0 auto 10px auto;
      border: 1px solid #f6d8e5;
      padding: 4px;
      background: var(--white);
      border-radius: 6px;
    }

    .qr-desc {
      font-size: 0.85rem;
      color: var(--gray-500);
    }

    .agent-card-box {
      background: linear-gradient(135deg, #fff5f8 0%, #fff 100%);
      border: 1px solid #fcdbe8;
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

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

    .perk-item {
      background: var(--white);
      border: 1px solid #f6e6ed;
      border-radius: var(--radius-sm);
      padding: 20px;
    }

    .perk-item h4 {
      font-size: 1.05rem;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .perk-item p {
      font-size: 0.88rem;
      color: var(--gray-700);
    }

    .site-footer {
      background: #191924;
      color: #b5b5c8;
      padding: 60px 0 30px 0;
      border-top: 3px solid var(--primary);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--white);
      margin-bottom: 18px;
    }

    .footer-links-list li {
      margin-bottom: 10px;
      font-size: 0.9rem;
    }

    .footer-links-list a {
      color: #9e9eb4;
    }

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

    .footer-friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 10px;
    }

    .footer-friend-links a {
      display: inline-block;
      background: #252536;
      color: #c4c4dc;
      padding: 5px 12px;
      border-radius: 4px;
      font-size: 0.85rem;
    }

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

    .footer-bottom {
      border-top: 1px solid #2b2b3e;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #7b7b93;
    }

    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 40px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: var(--white);
      border: 1px solid #f6d8e5;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      box-shadow: 0 4px 14px rgba(0,0,0,0.1);
      cursor: pointer;
      font-size: 1.2rem;
      font-weight: bold;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: var(--white);
      transform: scale(1.08);
    }

    @media (max-width: 992px) {
      .services-grid, .about-pillars, .comments-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .pipeline-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: repeat(2, 1fr);
      }
      .form-contact-wrap {
        grid-template-columns: 1fr;
      }
      .gallery-grid {
        grid-template-columns: 1fr;
      }
      .agent-perks {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      body {
        padding-top: 66px;
      }
      .site-header {
        height: 66px;
      }
      .nav-wrap {
        height: 66px;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px;
        border-bottom: 1px solid #f5e4ec;
        box-shadow: 0 8px 20px rgba(0,0,0,0.08);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li a {
        padding: 12px 10px;
        border-bottom: 1px solid #fcf2f6;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .services-grid, .about-pillars, .comments-grid, .pipeline-grid, .stats-grid, .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .section-padding {
        padding: 60px 0;
      }
      .section-title {
        font-size: 1.7rem;
      }
    }