#main > .customer-case-list {
  margin: 0 auto 20px;
  width: 70%;
}
#main > .customer-case-list > li.customer-case-item {
  width: 22%;
  margin-right: 4%;
}
#main > .customer-case-list > li.customer-case-item.mr_0 {
  margin-right: 0;
}
#main > .customer-case-list > li.customer-case-item > a {
  text-decoration: none;
}
.list_horizontal,
.list_vertical {
  margin: 0 auto;
  width: 1200px;
}
.list_vertical {
  margin-top: 70px;
  margin-bottom: 70px;
}
.list_horizontal > .item {
  width: 30%;
}
.list_vertical > .item {
  width: 20%;
}
.list_vertical > .item.mr_8p {
  margin-right: 8%;
}
.list_horizontal > .item.mr_20p {
  margin-right: 10%;
}
.list_horizontal > .item > img,
.list_vertical > .item > img {
  display: block;
  width: 100%;
  cursor: pointer;
}
.fullmask {
  display: none;
  z-index: 200;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
}
.close {
  display: none;
  z-index: 400;
  position: fixed;
  right: 40px;
  top: 40px;
  font-size: 40px;
  color: #fff;
  opacity: 0.8;
}
.close:hover {
  color: #fff;
  opacity: 0.5;
}
img.screen_center {
  display: none;
  position: fixed;
  z-index: 300;
  top: 20%;
  left: 50%;
  /*transform: translateX(-50%);*/
  -webkit-transform: translateX(-50%);
}