.page-catalog {
  width: 96%;
  padding: 0 2%;
}
.page-catalog .grid1, .page-catalog .grid5 {
  position: relative;
  display: inline-block;
  vertical-align: top;
}
.page-catalog .grid1 {
  max-width: 850px;
  width: 85%;
}
.page-catalog .grid1 ul:hover .item:not(:hover) .pd-pic {
  filter: grayscale(90%);
}
.page-catalog .grid5 {
  position: fixed;
  top: 0;
  right: 50px;
  left: 50px;
  max-width: 1000px;
  margin: auto;
}