.product-list__section {
    overflow: hidden;
}
h2.cat_name {
  width:720px;
  height:120px;
  display: table-cell;
  vertical-align: middle;
  text-align:center;
  font-size:30px;
  color:#362b00;
  background:url(https://file002.shop-pro.jp/PA01368/947/bg_productname.jpg) top left no-repeat;
  border-bottom: none;
}

@media screen and (max-width: 640px) {
  h2.cat_name {
    width: 100vw;
    border-right: 1px solid #cfc389;
    padding-bottom: 0;
    margin-bottom: 20px;
  }
  .product-list {
    margin-top: 30px;
  }
  .product-list__unit-lg {
    width: 46%;
    margin: 0 2% 30px;
    float: left;
    text-align: center;
  }
  .product-list__unit-lg:nth-child(2n+1){
    clear:both;
  }
}
@media screen and (max-width: 375px) {
  .h3 {
    overflow: hidden;
    position: relative;
  }
  h3 img {
    width: 720px;
    max-width: none;
    position: relative;
    left: calc(-360px + 50%);
  }
  .product-list__unit-lg {
    width: 96%;
  }
  .product-list {
    overflow: hidden;
  }
  .product-list__unit-md {
    width: 46%;
    margin: 0 2% 20px;
    float: left;
  }
  .product-list__unit-md:nth-child(2n+1) {
    clear: both;
  }
}