.banner {
  font-size: 0;
  position: relative;
  display: block;
}

.cont {
  margin-bottom: 50px;
  margin-top: 30px;
  background: #ffffff;
  box-shadow: 0px 4px 16px 0px rgba(0, 0, 0, 0.25);
  padding: 0 30px;
}
.cont .item {
  padding: 30px 0;
  border-bottom: 1px solid #dedede;
}
.cont .item .tit {
  font-size: 20px;
}
.cont .item .tit .of1 {
  width: 1000px;
  font-weight: bold;
}
.cont .item .tit .of1:hover span {
  background: #015293;
  transition: 0.5s;
}
.cont .item .tit .of1 span {
  width: 4px;
  height: 4px;
  background: #d9d9d9;
  border-radius: 50%;
  display: inline-block;
  vertical-align: middle;
  margin-right: 11px;
}
.cont .item .tit .date {
  color: #999999;
}
.cont .item .of2 {
  margin-top: 30px;
  font-size: 18px;
  color: #a1a1a1;
  line-height: 32px;
}