.common_nav {
  position: relative;
  height: 315px;
  background: url("../images/nav.png") no-repeat top/cover;
}
.common_nav .wrap {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50px;
  width: 1440px;
  margin: auto;
  background-color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.common_nav .wrap .left {
  display: flex;
}
.common_nav .wrap .left a {
  padding: 0 42px;
  height: 50px;
  line-height: 50px;
  transition: all 0.2s;
}
.common_nav .wrap .right {
  color: #999;
  padding-right: 30px;
  display: flex;
  align-items: center;
}
.common_nav .wrap .right span {
  display: flex;
}
.common_nav .wrap .right span div {
  padding: 0 5px;
}
.common_nav .wrap .right img {
  margin-right: 10px;
}
.common_nav .wrap .left a:hover {
  color: white;
  background-color: #f15921;
}
.common_nav .wrap .left .xuanzhong {
  color: white;
  background-color: #f15921;
}