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

    .houli-product-detail h2 {
      margin: 0 0 14px;
      color: #102f49;
      font-size: 28px;
      line-height: 1.3;
    }

    .houli-product-detail h3 {
      margin: 0 0 9px;
      color: #174c70;
      font-size: 18px;
      line-height: 1.4;
    }

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

    .houli-product-detail ul {
      margin: 8px 0 0;
      padding-left: 22px;
    }

    .houli-product-detail li {
      margin-bottom: 8px;
    }

    .houli-product-detail .section {
      margin-bottom: 20px;
      padding: 42px 30px;
      background: #ffffff;
      border: 1px solid #e3ebf1;
      border-radius: 16px;
    }

    .houli-product-detail .hero {
      background: linear-gradient(135deg,#eef6fb 0%,#ffffff 100%);
    }

    .houli-product-detail .label {
      display: inline-block;
      margin-bottom: 16px;
      padding: 7px 14px;
      color: #154f76;
      background: #dcecf7;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 700;
    }

    .houli-product-detail .quick-specs {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 14px;
      margin-top: 22px;
    }

    .houli-product-detail .quick-item {
      padding: 18px 16px;
      background: #ffffff;
      border: 1px solid #d8e6ef;
      border-radius: 12px;
      text-align: center;
    }

    .houli-product-detail .quick-item strong {
      display: block;
      margin-bottom: 5px;
      color: #103d5c;
      font-size: 18px;
    }

    .houli-product-detail .quick-item span {
      color: #587080;
      font-size: 13px;
    }

    .houli-product-detail .grid-4 {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 16px;
      margin-top: 22px;
    }

    .houli-product-detail .grid-3 {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 16px;
      margin-top: 22px;
    }

    .houli-product-detail .card {
      padding: 22px 18px;
      background: #f5f9fc;
      border: 1px solid #dce7ef;
      border-radius: 12px;
    }

    .houli-product-detail .card p {
      margin: 0;
    }

    .houli-product-detail .spec-table {
      width: 100%;
      margin-top: 20px;
      border-collapse: collapse;
    }

    .houli-product-detail .spec-table td {
      padding: 13px 15px;
      border: 1px solid #dde6ec;
      vertical-align: top;
    }

    .houli-product-detail .spec-table td:first-child {
      width: 38%;
      color: #173f5f;
      background: #f3f7fa;
      font-weight: 700;
    }

    .houli-product-detail .notice {
      margin-top: 20px;
      padding: 17px 19px;
      color: #274c62;
      background: #edf6fb;
      border-left: 4px solid #287ca8;
      border-radius: 9px;
    }

    .houli-product-detail .warning {
      margin-top: 20px;
      padding: 17px 19px;
      color: #60471f;
      background: #fff7e8;
      border-left: 4px solid #e49a1f;
      border-radius: 9px;
    }

    .houli-product-detail .trust {
      color: #ffffff;
      background: #102f49;
      border: none;
    }

    .houli-product-detail .trust h2,
    .houli-product-detail .trust h3 {
      color: #ffffff;
    }

    .houli-product-detail .faq-item {
      padding: 18px 0;
      border-bottom: 1px solid #e2e9ee;
    }

    .houli-product-detail .faq-item:last-child {
      padding-bottom: 0;
      border-bottom: none;
    }

    @media (max-width:900px) {
      .houli-product-detail .quick-specs,
      .houli-product-detail .grid-4,
      .houli-product-detail .grid-3 {
        grid-template-columns: repeat(2,1fr);
      }
    }

    @media (max-width:600px) {
      .houli-product-detail .section {
        padding: 28px 18px;
        border-radius: 12px;
      }

      .houli-product-detail h2 {
        font-size: 23px;
      }

      .houli-product-detail h3 {
        font-size: 17px;
      }

      .houli-product-detail .quick-specs,
      .houli-product-detail .grid-4,
      .houli-product-detail .grid-3 {
        grid-template-columns: 1fr;
      }

      .houli-product-detail .spec-table td {
        display: block;
        width: 100% !important;
      }

      .houli-product-detail .spec-table td:first-child {
        border-bottom: none;
      }
    }