.water-detail__intro {
  margin-top: 3rem;
}
.water-detail__text {
  max-width: calc(72ch + 100px);
}
.water-detail__text p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}
.water-detail__heading {
  color: var(--color-primary);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 700;
}
.water-detail__rules {
  margin-top: 4rem;
  margin-bottom: 4.5rem;
}
.rules-list {
  margin-top: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: rgba(18, 85, 122, 0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.rules-list__row {
  display: grid;
  grid-template-columns: minmax(0, 220px) 1fr;
  gap: 1.5rem;
  background: var(--color-white);
  padding: 1.1rem 1.5rem;
}
.rules-list__row dt {
  font-weight: 700;
  color: var(--color-primary);
}
.rules-list__row dd {
  color: var(--color-text-muted);
  line-height: 1.6;
  font-size: 0.96rem;
}
@media (max-width: 720px) {
  .rules-list__row {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
}