.other-banner {
  background: url(../images/p4Banner.jpg) center center / auto 100% no-repeat;
}
.vertical-nav {
  list-style: none;
  padding: 20px 0 20px 10px;
  color: #777;
  font-size: 16px;
}
.vertical-nav > li {
  position: relative;
  padding: 0 0 40px 40px;
  counter-increment: vertical_li;
  line-height: 30px;
}
.vertical-nav > li:before {
  content: counter(vertical_li);
  position: absolute;
  left: 0;
  top: 0;
  display: inline-block;
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border-radius: 50%;
  border: 2px solid #777;
}
.vertical-nav > li:after {
  content: "";
  display: block;
  position: absolute;
  left: 14px;
  top: 30px;
  height: calc(100% - 30px);
  width: 2px;
  background-color: #4d6d9c;
}
.vertical-nav > li:last-child:after {
  display: none;
}
.vertical-nav .item-title {
  display: block;
  font-size: 18px;
  color: #4d6d9c;
}
.customized {
  padding-right: 50%;
  background: url(../images/shiji.png) top right / auto 100% no-repeat;
}
.detection {
  padding-right: 50%;
  background: url(../images/jiance.png) top right / auto 60% no-repeat;
}