.houli-product-page {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 16px;
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2937;
    line-height: 1.72;
    box-sizing: border-box;
  }

  .houli-product-page * {
    box-sizing: border-box;
  }

  .houli-hero {
    background: linear-gradient(135deg, #f8fafc 0%, #ecfdf5 100%);
    border: 1px solid #d1fae5;
    border-radius: 24px;
    padding: 42px 34px;
    margin-bottom: 34px;
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.06);
  }

  .houli-badge {
    display: inline-block;
    background: #dcfce7;
    color: #047857;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .8px;
    text-transform: uppercase;
    padding: 7px 14px;
    border-radius: 999px;
    margin-bottom: 16px;
  }

  .houli-hero h2 {
    font-size: 34px;
    line-height: 1.25;
    margin: 0 0 16px 0;
    color: #0f172a;
    font-weight: 800;
  }

  .houli-hero p {
    font-size: 17px;
    margin: 0 0 14px 0;
    color: #334155;
    max-width: 940px;
  }

  .houli-hero p:last-child {
    margin-bottom: 0;
  }

  .houli-spec-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 40px;
  }

  .houli-spec-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
    min-height: 150px;
  }

  .houli-spec-label {
    font-size: 12px;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: .8px;
    margin-bottom: 9px;
    font-weight: 700;
  }

  .houli-spec-value {
    font-size: 28px;
    font-weight: 900;
    color: #0f172a;
    line-height: 1.22;
    word-break: normal;
  }

  .houli-spec-value.green {
    color: #047857;
    font-size: 25px;
  }

  .houli-model-code {
    font-size: 26px;
    letter-spacing: .2px;
    white-space: nowrap;
  }

  .houli-spec-note {
    font-size: 14px;
    color: #64748b;
    margin-top: 9px;
  }

  .houli-section {
    margin-bottom: 40px;
  }

  .houli-section h2 {
    font-size: 28px;
    margin: 0 0 18px 0;
    color: #111827;
    border-bottom: 2px solid #e5e7eb;
    padding-bottom: 12px;
  }

  .houli-section p {
    margin: 0 0 14px 0;
  }

  .houli-section p:last-child {
    margin-bottom: 0;
  }

  .houli-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .houli-app-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.045);
  }

  .houli-app-card h3 {
    font-size: 20px;
    margin: 0 0 10px 0;
    color: #0f172a;
  }

  .houli-app-card p {
    margin: 0;
    color: #475569;
  }

  .houli-feature-box {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 24px;
    padding: 32px;
    margin-bottom: 40px;
  }

  .houli-feature-box h2 {
    font-size: 28px;
    margin: 0 0 20px 0;
    color: #111827;
  }

  .houli-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .houli-feature-item {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 18px;
  }

  .houli-feature-item span {
    color: #475569;
  }

  .houli-table-wrap {
    overflow-x: auto;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.045);
  }

  .houli-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
    background: #ffffff;
    min-width: 620px;
  }

  .houli-table td {
    border-bottom: 1px solid #e5e7eb;
    padding: 15px 18px;
  }

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

  .houli-table td:first-child {
    background: #f8fafc;
    width: 36%;
    font-weight: 700;
    color: #111827;
  }

  .houli-usage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-bottom: 40px;
  }

  .houli-use-card {
    background: #ffffff;
    border: 1px solid #dbeafe;
    border-radius: 22px;
    padding: 26px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.045);
  }

  .houli-warning-card {
    background: #fff7ed;
    border: 1px solid #fed7aa;
    border-radius: 22px;
    padding: 26px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.045);
  }

  .houli-use-card h2,
  .houli-warning-card h2 {
    font-size: 24px;
    margin: 0 0 12px 0;
  }

  .houli-warning-card h2 {
    color: #9a3412;
  }

  .houli-use-card p,
  .houli-use-card li {
    color: #475569;
  }

  .houli-warning-card p,
  .houli-warning-card li {
    color: #7c2d12;
  }

  .houli-use-card ul,
  .houli-warning-card ul,
  .houli-note-box ul {
    margin: 0;
    padding-left: 20px;
  }

  .houli-note-box {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 24px;
    padding: 32px;
    margin-bottom: 40px;
  }

  .houli-note-box h2 {
    font-size: 28px;
    margin: 0 0 16px 0;
    color: #111827;
  }

  .houli-faq-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 18px;
    padding: 20px;
    margin-bottom: 14px;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.035);
  }

  .houli-faq-card h3 {
    font-size: 19px;
    margin: 0 0 8px 0;
    color: #111827;
  }

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

  .houli-cta {
    background: linear-gradient(135deg, #ecfdf5 0%, #f0fdfa 100%);
    border: 1px solid #bbf7d0;
    border-radius: 24px;
    padding: 34px;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.055);
  }

  .houli-cta h2 {
    font-size: 27px;
    margin: 0 0 14px 0;
    color: #064e3b;
  }

  .houli-cta p {
    margin: 0 0 12px 0;
    color: #065f46;
  }

  .houli-cta p:last-child {
    margin-bottom: 0;
  }

  .houli-cta a {
    color: #047857;
    font-weight: 800;
    text-decoration: underline;
  }

  @media (max-width: 1024px) {
    .houli-spec-grid {
      grid-template-columns: repeat(2, 1fr);
    }

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

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

  @media (max-width: 768px) {
    .houli-product-page {
      padding: 20px 12px;
    }

    .houli-hero {
      padding: 28px 20px;
      border-radius: 18px;
    }

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

    .houli-hero p {
      font-size: 15px;
    }

    .houli-spec-grid,
    .houli-card-grid,
    .houli-feature-grid,
    .houli-usage-grid {
      grid-template-columns: 1fr;
    }

    .houli-spec-card {
      min-height: auto;
      padding: 20px;
    }

    .houli-spec-value {
      font-size: 25px;
    }

    .houli-spec-value.green {
      font-size: 24px;
    }

    .houli-model-code {
      font-size: 24px;
      white-space: normal;
    }

    .houli-section h2,
    .houli-feature-box h2,
    .houli-note-box h2 {
      font-size: 24px;
    }

    .houli-feature-box,
    .houli-note-box,
    .houli-cta {
      padding: 24px 20px;
      border-radius: 18px;
    }

    .houli-cta h2 {
      font-size: 24px;
    }
  }