:root {
      --primary-cyan: #0d9488;
      --primary-dark: #0f766e;
      --accent-teal: #14b8a6;
      --soft-teal: #ccfbf1;
      --bg-page: #f0fdfa;
      --bg-surface: #ffffff;
      --bg-muted: #f8fafc;
      --border-color: #e2e8f0;
      --border-focus: #2dd4bf;
      --text-main: #0f172a;
      --text-regular: #334155;
      --text-muted: #64748b;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(13, 148, 136, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 15px -3px rgba(13, 148, 136, 0.12), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
      --container-width: 1200px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    ul, ol {
      list-style: none;
    }

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

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

    .section-wrap {
      padding: 72px 0;
      position: relative;
    }

    .section-bg-alt {
      background: linear-gradient(180deg, rgba(204, 251, 241, 0.3) 0%, rgba(240, 253, 250, 0.8) 100%);
    }

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

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-dark);
      background-color: var(--soft-teal);
      padding: 4px 14px;
      border-radius: 9999px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      gap: 8px;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-dark) 100%);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(13, 148, 136, 0.25);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--accent-teal) 0%, var(--primary-cyan) 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(13, 148, 136, 0.35);
      color: #ffffff;
    }

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

    .btn-outline:hover {
      background-color: var(--soft-teal);
      color: var(--primary-dark);
      transform: translateY(-2px);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

    .brand-logo-wrap {
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .brand-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      flex-direction: column;
    }

    .brand-text span {
      font-size: 11px;
      color: var(--primary-dark);
      font-weight: 500;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 20px;
    }

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

    .nav-links li a {
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-regular);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      color: var(--primary-dark);
      background-color: rgba(204, 251, 241, 0.5);
    }

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

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 22px;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 50% 10%, rgba(20, 184, 166, 0.15) 0%, rgba(240, 253, 250, 0.4) 60%, rgba(255, 255, 255, 0) 100%);
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--border-focus);
      padding: 6px 16px;
      border-radius: 9999px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-dark);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-title {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, var(--primary-cyan), var(--primary-dark));
      -webkit-background-clip: text;
      -webkit-text-fill-color: var(--primary-dark);
    }

    .hero-subtitle {
      font-size: 17px;
      color: var(--text-regular);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }

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

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

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 20px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .stat-val {
      font-size: 26px;
      font-weight: 700;
      color: var(--primary-cyan);
      margin-bottom: 4px;
    }

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

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

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

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--accent-teal);
    }

    .service-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: var(--soft-teal);
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 18px;
      margin-bottom: 16px;
    }

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

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

    .tag-cloud-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 24px;
      margin-top: 32px;
      text-align: center;
    }

    .tag-cloud-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }

    .tag-item {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      color: var(--text-regular);
      font-size: 13px;
      padding: 5px 12px;
      border-radius: 6px;
      transition: all 0.2s;
    }

    .tag-item:hover {
      border-color: var(--primary-cyan);
      color: var(--primary-dark);
      background: var(--soft-teal);
    }

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

    .process-step {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px 20px;
      position: relative;
    }

    .step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--primary-cyan);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 14px;
    }

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

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

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

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s;
    }

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

    .case-img-wrap {
      background: var(--bg-muted);
      overflow: hidden;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.03);
    }

    .case-info {
      padding: 20px;
    }

    .case-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .table-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .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 var(--border-color);
      font-size: 14px;
    }

    .custom-table th {
      background-color: var(--bg-muted);
      color: var(--text-main);
      font-weight: 700;
    }

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

    .highlight-cell {
      background-color: rgba(204, 251, 241, 0.3);
      color: var(--primary-dark);
      font-weight: 600;
    }

    .badge-score {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      background: #fef3c7;
      color: #92400e;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 12px;
      font-weight: 700;
    }

    .rating-banner {
      background: linear-gradient(135deg, #0f766e 0%, #0d9488 100%);
      color: #ffffff;
      border-radius: 14px;
      padding: 28px;
      margin-bottom: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-content h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .rating-content p {
      font-size: 14px;
      opacity: 0.9;
    }

    .rating-score-box {
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(8px);
      padding: 12px 24px;
      border-radius: 10px;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.25);
    }

    .rating-score-val {
      font-size: 32px;
      font-weight: 800;
      line-height: 1;
      margin-bottom: 4px;
    }

    .rating-score-stars {
      color: #fde047;
      font-size: 14px;
      letter-spacing: 2px;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }

    .faq-item.active {
      border-color: var(--border-focus);
    }

    .faq-question {
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 600;
      color: var(--text-main);
      font-size: 15px;
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 18px;
      color: var(--primary-cyan);
      transition: transform 0.2s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background-color: var(--bg-page);
      font-size: 14px;
      color: var(--text-regular);
      line-height: 1.6;
      padding: 0 20px;
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 14px 20px 18px;
    }

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

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

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

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

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

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

    .review-stars {
      margin-top: 12px;
      color: #f59e0b;
      font-size: 13px;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .contact-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 24px;
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 14px;
    }

    .contact-item strong {
      color: var(--text-main);
      min-width: 70px;
    }

    .qrcode-box {
      background: var(--bg-muted);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      padding: 16px;
      text-align: center;
      max-width: 180px;
    }

    .qrcode-box img {
      width: 140px;
      height: 140px;
      margin: 0 auto 8px;
      border-radius: 6px;
    }

    .qrcode-box span {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 500;
    }

    .form-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .form-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

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

    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      font-size: 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      background-color: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--border-focus);
      box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
    }

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

    .article-links-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      padding: 24px;
      margin-top: 32px;
    }

    .article-links-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      padding-bottom: 8px;
      border-bottom: 1px solid var(--border-color);
    }

    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .article-link-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-regular);
      padding: 6px 0;
    }

    .article-link-item:hover {
      color: var(--primary-dark);
      text-decoration: underline;
    }

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

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-col p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 12px;
    }

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

    .footer-col ul li a {
      font-size: 13px;
      color: var(--text-muted);
    }

    .footer-col ul li a:hover {
      color: var(--primary-dark);
    }

    .friend-links-area {
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

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

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

    .footer-bottom {
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-cyan);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
      cursor: pointer;
      border: none;
      transition: all 0.2s;
    }

    .floating-btn:hover {
      background: var(--primary-dark);
      transform: scale(1.05);
    }

    @media (max-width: 1024px) {
      .cards-grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }

      .nav-menu.show {
        display: flex;
      }

      .nav-links {
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
      }

      .nav-links li {
        width: 100%;
      }

      .nav-links li a {
        display: block;
        padding: 10px 0;
      }

      .mobile-menu-btn {
        display: block;
      }

      .hero-title {
        font-size: 28px;
      }

      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .cards-grid {
        grid-template-columns: 1fr;
      }

      .cards-grid-4 {
        grid-template-columns: 1fr;
      }

      .case-grid {
        grid-template-columns: 1fr;
      }

      .reviews-grid {
        grid-template-columns: 1fr;
      }

      .contact-grid {
        grid-template-columns: 1fr;
      }

      .process-timeline {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .article-links-grid {
        grid-template-columns: 1fr;
      }
    }