.header-wrap{
  width: 100%;
  height: 60px;
  background: rgba(0, 0, 0, .7);
  position: relative;
  text-align: center;
}
.header-logo{
  width: 112px;
  height: 32px;
  position: absolute;
  left: 72px;
  top: 14px;
  cursor: pointer;
}
.header-nav{
  margin: 0 auto;
  width: auto;
  display: inline-block;
}
.header-nav-list{
  font-size: 18px;
  color: #fff;
  float: left;
  padding: 0 1.2em;
  height: 60px;
  line-height: 60px;
  cursor: pointer;
}
.header-nav-list:hover{
  background: #068F8F;
}
.header-nav-list img{
  display: inline-block;
  width: 12px;
  height: 10px;
  visibility: hidden;
}
.header-nav-list a{
  color: #fff;
}

.header-nav-second{
  position: absolute;
  right: 0;
  left: 0;
  top: 60px;
  background-color: rgba(0, 99, 99, .6);
  z-index: 100;
  line-height: 60px;
  font-size: 18px;
  color: #fff;
}
.header-nav-second ul{
  height: 0;
  overflow: hidden;
}
.header-nav-second ul.header-nav-item-show{
  height: 60px;
}
.header-nav-second li{
  display: inline-block;
  padding: 0 22px;
}
.header-nav-list-active{
  background: #068F8F;
}
.header-nav-list-active img{
  visibility: visible;
}

@media screen and (max-width: 1440px) {
  .header-nav-list{
    font-size: 16px;
    color: #fff;
    float: left;
    padding: 0 0.8em;
    height: 60px;
    line-height: 60px;
    cursor: pointer;
  }
}
@media screen and (max-width: 1280px) {
  .header-nav-list{
    font-size: 14px;
    color: #fff;
    float: left;
    padding: 0 0.6em;
    height: 60px;
    line-height: 60px;
    cursor: pointer;
  }
}