h3 {
  font-weight: 500;
  font-size: 0.36rem;
  color: #333333;
  height: 0.54rem;
  line-height: 0.54rem;
  margin: 0.36rem 0;
  text-align: center;
}
.product-introduction {
  padding: 0 0.6rem;
  width: 7.5rem;
  max-width: 7.5rem;
  margin: 0 auto;
  box-sizing: border-box;
}
.product-introduction > p {
  font-weight: 400;
  font-size: 0.32rem;
  color: #333333;
  padding-bottom: 0.24rem;
  line-height: 0.48rem;
}