:root {
      --primary: #ff3366;
      --primary-dark: #d91b4c;
      --secondary: #6366f1;
      --accent: #00d2ff;
      --accent-warm: #ff9900;
      --bg-page: #f8fafc;
      --bg-surface: #ffffff;
      --text-main: #0f172a;
      --text-sub: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.05);
      --shadow-md: 0 10px 25px -5px rgba(255,51,102,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-hover: 0 20px 35px -5px rgba(255,51,102,0.15), 0 10px 15px -5px rgba(99,102,241,0.1);
      --radius: 14px;
      --max-width: 1200px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: radial-gradient(at 0% 0%, rgba(255,51,102,0.04) 0px, transparent 50%),
                        radial-gradient(at 100% 100%, rgba(99,102,241,0.04) 0px, transparent 50%);
      background-attachment: fixed;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 16px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .brand-wrap img {
      max-height: 40px;
      width: auto;
      display: block;
    }
    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }
    .main-nav {
      display: flex;
      align-items: center;
      flex: 1;
      justify-content: flex-end;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      padding: 8px 14px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-sub);
      transition: all 0.25s ease;
      display: inline-block;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 15px;
      padding: 10px 22px;
      border-radius: 99px;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #ff5c8a);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 51, 102, 0.35);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 51, 102, 0.45);
      color: #ffffff;
    }
    .btn-outline {
      background: #ffffff;
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #fff5f7;
    }
    .btn-sm {
      padding: 7px 16px;
      font-size: 14px;
    }
    .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
      padding: 8px;
    }
    .hero-section {
      padding: 64px 0 80px;
      position: relative;
      background: linear-gradient(180deg, rgba(255, 51, 102, 0.05) 0%, rgba(99, 102, 241, 0.03) 60%, transparent 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #ffd6e0;
      border-radius: 99px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 24px;
      box-shadow: 0 2px 6px rgba(255,51,102,0.08);
    }
    .hero-h1 {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      letter-spacing: -1px;
      margin-bottom: 20px;
    }
    .hero-desc {
      font-size: 18px;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 32px;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-cta {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .btn-hero-official {
      padding: 14px 36px;
      font-size: 17px;
      background: linear-gradient(135deg, #ff3366, #ff6b3d);
      color: #fff;
      border-radius: 99px;
      box-shadow: 0 8px 24px rgba(255, 51, 102, 0.4);
      font-weight: 700;
    }
    .btn-hero-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(255, 51, 102, 0.5);
      color: #fff;
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }
    .stat-card {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform 0.25s;
    }
    .stat-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .stat-num {
      font-size: 30px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 4px;
      display: block;
      font-family: Arial, sans-serif;
    }
    .stat-label {
      font-size: 13px;
      color: var(--text-sub);
      font-weight: 600;
    }
    .model-ticker {
      padding: 24px 0;
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
    }
    .ticker-title {
      text-align: center;
      font-size: 14px;
      color: var(--text-light);
      margin-bottom: 16px;
      font-weight: 600;
      letter-spacing: 0.5px;
    }
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      max-width: 1100px;
      margin: 0 auto;
    }
    .model-tag {
      background: #f1f5f9;
      color: var(--text-main);
      padding: 4px 12px;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 600;
      border: 1px solid #e2e8f0;
      transition: all 0.2s;
    }
    .model-tag:hover {
      background: #ffe6ee;
      border-color: #ffb3c7;
      color: var(--primary);
      transform: scale(1.05);
    }
    .model-tag.hot {
      background: #fff0f3;
      border-color: #ffccd7;
      color: var(--primary);
    }
    .section-wrap {
      padding: 80px 0;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-tag {
      font-size: 13px;
      font-weight: 800;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-subtitle {
      font-size: 16px;
      color: var(--text-sub);
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .service-card {
      background: var(--bg-surface);
      border-radius: var(--radius);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: #ffb3c7;
    }
    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(255,51,102,0.1), rgba(99,102,241,0.1));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
      color: var(--primary);
    }
    .service-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .service-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      flex-grow: 1;
    }
    .card-footer {
      margin-top: 20px;
      padding-top: 16px;
      border-top: 1px dashed var(--border-color);
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }
    .media-card {
      background: #ffffff;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
    }
    .media-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .media-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f1f5f9;
      overflow: hidden;
    }
    .media-img-wrap.square {
      aspect-ratio: 1 / 1;
    }
    .media-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .media-card:hover .media-img-wrap img {
      transform: scale(1.05);
    }
    .media-body {
      padding: 24px;
    }
    .media-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .media-body p {
      font-size: 14px;
      color: var(--text-sub);
    }
    .table-container {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      overflow-x: auto;
      padding: 4px;
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .custom-table th,
    .custom-table td {
      padding: 16px 20px;
      font-size: 14px;
      border-bottom: 1px solid #f1f5f9;
    }
    .custom-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 700;
    }
    .custom-table tr:hover td {
      background: #fff9fb;
    }
    .highlight-cell {
      color: var(--primary);
      font-weight: 700;
    }
    .rating-banner {
      background: linear-gradient(135deg, #fff0f3 0%, #f0f4ff 100%);
      border: 1px solid #ffd1dc;
      border-radius: var(--radius);
      padding: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .rating-score {
      font-size: 48px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
      font-family: Arial, sans-serif;
    }
    .rating-stars {
      color: #ff9900;
      font-size: 20px;
      margin-top: 4px;
    }
    .steps-wrap {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
    }
    .step-num {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      margin-bottom: 16px;
    }
    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-item p {
      font-size: 13px;
      color: var(--text-sub);
    }
    .testimonial-card {
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-text {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }
    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ffccd7, #c7d2fe);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--text-main);
      font-size: 15px;
    }
    .user-name {
      font-weight: 700;
      font-size: 15px;
    }
    .user-role {
      font-size: 12px;
      color: var(--text-light);
    }
    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .faq-item.active {
      border-color: #ffb3c7;
    }
    .faq-header {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 16px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }
    .faq-header:hover {
      color: var(--primary);
    }
    .faq-toggle-icon {
      font-size: 18px;
      color: var(--text-light);
      transition: transform 0.3s;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(180deg);
      color: var(--primary);
    }
    .faq-body {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
      display: none;
    }
    .faq-item.active .faq-body {
      display: block;
    }
    .form-box {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .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-radius: 8px;
      border: 1px solid var(--border-color);
      font-size: 14px;
      background: #f8fafc;
      color: var(--text-main);
      transition: border-color 0.2s, background 0.2s;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: #ffffff;
    }
    textarea.form-control {
      min-height: 110px;
      resize: vertical;
    }
    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
    }
    .contact-qr-wrap {
      text-align: center;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      margin-top: 20px;
    }
    .contact-qr-wrap img {
      max-width: 140px;
      height: auto;
      border-radius: 8px;
      margin-bottom: 8px;
      display: inline-block;
    }
    .links-module {
      padding: 40px 0;
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .links-title {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 14px;
      color: var(--text-main);
    }
    .links-cluster {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 24px;
    }
    .links-cluster a {
      font-size: 13px;
      color: var(--text-sub);
      background: #f1f5f9;
      padding: 6px 14px;
      border-radius: 6px;
      transition: all 0.2s;
    }
    .links-cluster a:hover {
      background: #ffe6ee;
      color: var(--primary);
    }
    .site-footer {
      background: #ffffff;
      color: var(--text-sub);
      padding: 40px 0 24px;
      font-size: 14px;
      border-top: 1px solid var(--border-color);
    }
    .footer-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .footer-copy {
      text-align: center;
      padding-top: 20px;
      font-size: 13px;
      color: var(--text-light);
    }
    .fixed-sidebar {
      position: fixed;
      right: 20px;
      bottom: 80px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .sidebar-btn {
      width: 46px;
      height: 46px;
      background: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(0,0,0,0.12);
      border: 1px solid var(--border-color);
      color: var(--text-main);
      cursor: pointer;
      transition: all 0.2s;
      position: relative;
    }
    .sidebar-btn:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }
    .sidebar-qr-pop {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: 12px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.15);
      border: 1px solid var(--border-color);
      display: none;
      width: 140px;
      text-align: center;
    }
    .sidebar-qr-pop img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 6px;
    }
    .sidebar-btn:hover .sidebar-qr-pop {
      display: block;
    }
    @media (max-width: 992px) {
      .grid-3, .grid-4, .hero-stats-grid, .steps-wrap {
        grid-template-columns: repeat(2, 1fr);
      }
      .main-nav {
        display: none;
      }
      .main-nav.active {
        display: block;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 8px 16px rgba(0,0,0,0.08);
        padding: 16px 24px;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 12px 0;
        border-bottom: 1px solid #f1f5f9;
        display: block;
      }
      .nav-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 30px;
      }
    }
    @media (max-width: 768px) {
      .grid-2, .grid-3, .grid-4, .hero-stats-grid, .steps-wrap {
        grid-template-columns: 1fr;
      }
      .section-wrap {
        padding: 50px 0;
      }
      .hero-section {
        padding: 40px 0 60px;
      }
      .hero-h1 {
        font-size: 26px;
      }
      .footer-inner {
        flex-direction: column;
        text-align: center;
      }
      .fixed-sidebar {
        right: 12px;
        bottom: 40px;
      }
    }