.houli-etl {
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2937;
    line-height: 1.7;
    background: #ffffff;
  }

  .houli-etl * {
    box-sizing: border-box;
  }

  .houli-etl a {
    color: #0f766e;
    text-decoration: none;
  }

  .houli-etl a:hover {
    text-decoration: underline;
  }

  .houli-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 18px;
  }

  .houli-breadcrumb {
    font-size: 14px;
    color: #64748b;
    padding: 18px 0;
  }

  .houli-hero {
    background: linear-gradient(135deg, #0f172a 0%, #064e3b 55%, #0f766e 100%);
    color: #ffffff;
    border-radius: 28px;
    padding: 56px 36px;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
  }

  .houli-hero:after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
  }

  .houli-badge {
    display: inline-block;
    background: rgba(255,255,255,0.16);
    border: 1px solid rgba(255,255,255,0.28);
    color: #ffffff;
    border-radius: 999px;
    padding: 7px 14px;
    font-size: 14px;
    margin-bottom: 18px;
    position: relative;
    z-index: 1;
  }

  .houli-title {
    font-size: 42px;
    line-height: 1.18;
    margin: 0 0 18px;
    max-width: 940px;
    color: #ffffff;
    font-weight: 800;
    position: relative;
    z-index: 1;
  }

  .houli-hero p {
    font-size: 18px;
    max-width: 930px;
    margin: 0 0 24px;
    color: #d1fae5;
    position: relative;
    z-index: 1;
  }

  .houli-hero-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin: 28px 0 30px;
    position: relative;
    z-index: 1;
  }

  .houli-hero-card {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.24);
    border-radius: 16px;
    padding: 14px;
    min-height: 82px;
  }

  .houli-hero-card strong {
    display: block;
    font-size: 15px;
    color: #ffffff;
  }

  .houli-hero-card span {
    display: block;
    font-size: 13px;
    color: #bbf7d0;
    margin-top: 4px;
  }

  .houli-btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    position: relative;
    z-index: 1;
  }

  .houli-btn {
    display: inline-block;
    padding: 12px 18px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
  }

  .houli-btn-primary {
    background: #ffffff;
    color: #0f766e !important;
  }

  .houli-btn-secondary {
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.32);
    color: #ffffff !important;
  }

  .houli-section {
    margin: 34px 0;
  }

  .houli-section h2 {
    font-size: 30px;
    line-height: 1.28;
    margin: 0 0 16px;
    color: #0f172a;
  }

  .houli-section h3 {
    font-size: 21px;
    margin: 0 0 10px;
    color: #0f172a;
  }

  .houli-lead {
    font-size: 17px;
    color: #475569;
    margin-bottom: 18px;
  }

  .houli-answer-box {
    background: #ecfeff;
    border: 1px solid #99f6e4;
    border-left: 6px solid #0f766e;
    border-radius: 18px;
    padding: 24px;
  }

  .houli-answer-box h2 {
    font-size: 24px;
    margin-bottom: 10px;
  }

  .houli-toc {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 22px;
    margin: 28px 0;
  }

  .houli-toc-title {
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 12px;
    font-size: 18px;
  }

  .houli-toc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .houli-toc a {
    display: block;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 10px 12px;
    font-size: 14px;
    color: #334155;
  }

  .houli-grid-2,
  .houli-grid-3,
  .houli-grid-4 {
    display: grid;
    gap: 18px;
  }

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

  .houli-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .houli-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .houli-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 22px;
    box-shadow: 0 12px 30px rgba(15,23,42,0.06);
  }

  .houli-card strong {
    color: #0f172a;
  }

  .houli-icon {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: #ccfbf1;
    color: #0f766e;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    margin-bottom: 12px;
  }

  .houli-table-wrap {
    overflow-x: auto;
    border-radius: 18px;
    border: 1px solid #e2e8f0;
    margin-top: 16px;
  }

  .houli-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    min-width: 760px;
  }

  .houli-table th {
    background: #0f172a;
    color: #ffffff;
    text-align: left;
    padding: 14px 16px;
    font-size: 14px;
  }

  .houli-table td {
    padding: 14px 16px;
    border-bottom: 1px solid #e2e8f0;
    color: #334155;
    vertical-align: top;
    font-size: 14px;
  }

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

  .houli-note {
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
    border-radius: 18px;
    padding: 18px 20px;
    margin-top: 16px;
  }

  .houli-cert-box {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 22px;
    align-items: center;
  }

  .houli-cert-image {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 18px;
    text-align: center;
  }

  .houli-cert-image img {
    max-width: 100%;
    height: auto;
    border-radius: 14px;
  }

  .houli-cert-image p {
    font-size: 13px;
    color: #64748b;
    margin: 10px 0 0;
  }

  .houli-product-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 220px;
  }

  .houli-tag {
    display: inline-block;
    background: #f1f5f9;
    color: #334155;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 12px;
    margin: 0 6px 6px 0;
  }

  .houli-faq details {
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 16px 18px;
    margin-bottom: 12px;
    background: #ffffff;
  }

  .houli-faq summary {
    cursor: pointer;
    font-weight: 700;
    color: #0f172a;
  }

  .houli-faq p {
    margin: 12px 0 0;
    color: #475569;
  }

  .houli-cta {
    background: #0f172a;
    color: #ffffff;
    border-radius: 28px;
    padding: 36px;
    margin: 40px 0;
  }

  .houli-cta h2 {
    color: #ffffff;
  }

  .houli-cta p {
    color: #cbd5e1;
    max-width: 900px;
  }

  @media (max-width: 900px) {
    .houli-hero {
      padding: 38px 22px;
      border-radius: 22px;
    }

    .houli-title {
      font-size: 32px;
    }

    .houli-hero-grid,
    .houli-grid-2,
    .houli-grid-3,
    .houli-grid-4,
    .houli-toc-grid,
    .houli-cert-box {
      grid-template-columns: 1fr;
    }

    .houli-section h2 {
      font-size: 26px;
    }
  }