.nbp-detail {
  max-width: 1100px;
  margin: 0 auto;
  color: #26343b;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
  font-size: 16px;
}

.nbp-detail *,
.nbp-detail *::before,
.nbp-detail *::after {
  box-sizing: border-box;
}

.nbp-detail h2 {
  margin: 52px 0 18px;
  color: #173b4d;
  font-size: 28px;
  line-height: 1.25;
  font-weight: 700;
}

.nbp-detail h3 {
  margin: 0 0 10px;
  color: #173b4d;
  font-size: 18px;
  line-height: 1.35;
  font-weight: 700;
}

.nbp-detail p {
  margin: 0 0 18px;
}

.nbp-detail .nbp-intro {
  margin: 0 0 28px;
  color: #52636b;
  font-size: 18px;
  line-height: 1.75;
}

.nbp-detail .nbp-note {
  margin: 24px 0 34px;
  padding: 18px 22px;
  border-left: 4px solid #c58b32;
  background: #fff8e9;
  color: #614718;
}

.nbp-detail .nbp-note p {
  margin: 0;
}

.nbp-detail .nbp-specs {
  width: 100%;
  margin: 0;
  border-collapse: collapse;
  background: #ffffff;
}

.nbp-detail .nbp-specs th,
.nbp-detail .nbp-specs td {
  padding: 15px 18px;
  border-bottom: 1px solid #e2e9ec;
  text-align: left;
  vertical-align: top;
}

.nbp-detail .nbp-specs th {
  width: 34%;
  color: #173b4d;
  background: #f3f7f8;
  font-weight: 700;
}

.nbp-detail .nbp-curves {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 26px 0 10px;
}

.nbp-detail .nbp-curve {
  min-height: 130px;
  padding: 20px 16px;
  border: 1px solid #d9e4e8;
  background: #f8fbfc;
  text-align: center;
}

.nbp-detail .nbp-curve strong {
  display: block;
  margin-bottom: 8px;
  color: #173b4d;
  font-size: 24px;
}

.nbp-detail .nbp-curve span {
  display: block;
  color: #60737c;
  font-size: 14px;
  line-height: 1.5;
}

.nbp-detail .nbp-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 26px 0 30px;
}

.nbp-detail .nbp-step {
  padding: 22px;
  border: 1px solid #dce6e9;
  background: #ffffff;
}

.nbp-detail .nbp-step-number {
  display: inline-block;
  width: 30px;
  height: 30px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: #173b4d;
  color: #ffffff;
  font-size: 15px;
  line-height: 30px;
  text-align: center;
  font-weight: 700;
}

.nbp-detail .nbp-step p {
  margin: 0;
  color: #52636b;
}

.nbp-detail .nbp-position-image {
  margin: 28px auto 34px;
  text-align: center;
}

.nbp-detail .nbp-position-image img {
  display: block;
  width: 100%;
  max-width: 760px;
  height: auto;
  margin: 0 auto;
}

.nbp-detail .nbp-position-image figcaption,
.nbp-detail .nbp-video figcaption {
  margin-top: 10px;
  color: #71828a;
  font-size: 14px;
}

.nbp-detail .nbp-list {
  margin: 0 0 24px;
  padding-left: 22px;
}

.nbp-detail .nbp-list li {
  margin-bottom: 10px;
}

.nbp-detail .nbp-safety {
  margin-top: 28px;
  padding: 24px;
  border: 1px solid #ead4a6;
  background: #fffaf0;
}

.nbp-detail .nbp-safety h2 {
  margin-top: 0;
  color: #76531d;
}

.nbp-detail .nbp-storage {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 24px 0;
}

.nbp-detail .nbp-storage-item {
  padding: 20px;
  background: #f3f7f8;
}

.nbp-detail .nbp-storage-item strong {
  display: block;
  margin-bottom: 6px;
  color: #173b4d;
}

.nbp-detail .nbp-video {
  max-width: 820px;
  margin: 28px auto 0;
  text-align: center;
}

.nbp-detail .nbp-video-frame {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  overflow: hidden;
  background: #102d3a;
}

.nbp-detail .nbp-video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media screen and (max-width: 700px) {
  .nbp-detail {
    font-size: 15px;
  }

  .nbp-detail h2 {
    margin-top: 38px;
    font-size: 24px;
  }

  .nbp-detail .nbp-intro {
    font-size: 16px;
  }

  .nbp-detail .nbp-curves,
  .nbp-detail .nbp-steps,
  .nbp-detail .nbp-storage {
    grid-template-columns: 1fr;
  }

  .nbp-detail .nbp-specs th,
  .nbp-detail .nbp-specs td {
    display: block;
    width: 100%;
    padding: 12px 14px;
  }

  .nbp-detail .nbp-specs th {
    padding-bottom: 4px;
    border-bottom: 0;
  }

  .nbp-detail .nbp-specs td {
    padding-top: 4px;
  }
}