.bg {
  display: block;
  /* min-width: 100%; */
  min-height: 1200px;
  flex-direction: column;
  background: yellow;
  background: url(../image/contacts.jpg);
  background-size: cover;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  margin: 0px 280px;

}

.bg1 {
  margin: auto;
  width: 100%;
  position: relative;
  min-height: 700px;
}



.all-sort-list {
  position: relative;
  float: left;
  width: 234px;
  border-top: none;
  background: #fff;
  /* height: 100%; */
  padding: 20px 0;
}

.all-sort-list .item {
  height: 42px;
  /*border-top: 1px solid #FFFFFF;*/
}

.all-sort-list .item:hover {
  background: #f7f8fa;
}

.all-sort-list .item.bo {
  border-top: none;
}

.all-sort-list .item h3 {
  height: 30px;
  line-height: 45px;
  font-size: 15px;
  font-weight: normal;
  width: 199px;
  overflow: hidden;
}

.all-sort-list .item span {
  padding: 0px 5px;
  color: #1baeae;
  font-family: "\5B8B\4F53";
}

.all-sort-list .item > a {
  position: relative;
  top: 12px;
  padding-left: 30px;
  color: #808080;
  text-decoration: none;
}

.all-sort-list .item i {
  position: relative;
  left: 60px;
}

.all-sort-list .item-list {
  display: none;
  position: absolute;
  width: 992px;
  min-height: 460px;
  background: #FFF;
  left: 234px;
  box-shadow: 0px 0px 10px #DDDDDD;
  top: 0px;
  z-index: 10;
}