.main-header{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(135, 66, 26, .8);
  z-index: 1001;
}
.header-nav-m{
  height: 60px;
  display: none;
}
.header-nav{
  padding-left: 60px;
  padding-right: 60px;
}
.header-nav .nav{
  font-size: large;
}
.header-nav .item{
  display: inline-block;
  line-height: 60px;
  padding: 0 20px;
  color: #fff;
  position: relative;
  cursor: pointer;
  transition: all .2s;
}
.header-nav .item:hover{
  background: rgba(255, 255, 255, .9);
  color: #e95613;
}
.header-nav .nav-sub .nav-sub-list{
  min-width: 100%;
  list-style: none;
  padding-left: 0;
  position: absolute;
  top: 60px;
  left: 0;
  background: rgba(255, 255, 255, .9);
  display: none;
}
/* .header-nav .nav-sub:hover .nav-sub-list{
  display: block;
} */
.header-nav .nav-sub .nav-sub-list li{
  position: relative;
  font-size: .9em;
  padding:0 20px;
}
.header-nav .nav-sub .nav-sub-list li:after{
  content: '';
  position: absolute;
  top: 0;
  left: 10px;
  right: 10px;
}
.header-nav .nav-sub .nav-sub-list li:first-of-type::after{
  border: none;
}
.header-nav .nav-sub .nav-sub-item{
  display: block;
  text-align: center;
  color: #4c4c4c;
  white-space:nowrap
}
.header-nav .nav-sub .nav-sub-list li:hover{
  color: #000;
  background: #fff;
}
.header-nav .nav-sub .nav-sub-list::after{
  content: '';
  border-top: 2px solid #e95613;
  position: absolute;
  top: 0;
  right: 10px;
  left: 10px;
}

.header-nav .nav-tools{
  line-height: 60px;
  color: #fff;
  font-size: small;
}

.header-nav .nav-tools .ite{
  color: #fff;
}
.header-nav .nav-tools .ite:hover{
    color:#e95613
}
.header-nav .nav-tools .time{
  margin-right: 26px;
}

.header-nav .nav-tools .time .day{
  display: inline-block;
  font-size: xx-large;
  color: #fffa73;
  font-weight: bold;
  vertical-align: top;
  padding: 0 6px;
}

@media screen and (max-width: 1600px){
  .header-nav{
    padding-left: 60px;
    padding-right: 60px;
  }
}
@media screen and (max-width: 1400px){
  .header-nav .nav{
    font-size: 1em;
  }
}
@media screen and (max-width: 1200px){
  .header-nav{
    padding-left: 20px;
    padding-right: 20px;
  }
  .header-nav .nav{
    font-size: .95em;
  }
}
@media screen and (max-width: 992px){
  .header-nav{
    position: relative;
    padding-left: 10px;
    padding-right: 10px;
  }
  .header-nav .nav{
    font-size: 1em;
  }
  .main-header{
    position: relative;
    background: #fff;
  }
  .header-nav-m{
    display: block;
    padding: 0 10px;
  }
  .header-nav-m .logo{
    display: inline-block;
    height: 28px;
    margin-top: 16px;
    line-height: 28px;
    color: #e95613;
    font-weight: bold;
  }
  .header-nav-m .logo img{
    height: 100%;
  }
  .header-nav-m .m-btn{
    width: 40px;
    height: 40px;
    margin-top: 10px;
    position: relative;
  }
  .header-nav-m .m-btn .l{
    display: inline-block;
    width: 30px;
    border-bottom: 2px solid #e95613;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -15px;
    transition: all .3s;
    opacity: 1;
  }
  .header-nav-m .m-btn .t{
    margin-top: -10px;
  }
  .header-nav-m .m-btn .b{
    margin-top: 11px;
  }
  .header-nav-m .m-btn.active .t{
    margin-top: -1px;
    transform: rotate(45deg);
  }
  .header-nav-m .m-btn.active .c{
    opacity: 0;
  }
  .header-nav-m .m-btn.active .b{
    margin-top: -1px;
    transform: rotate(-45deg);
  }

  .header-nav{
    position: fixed;
    top: 60px;
    left: 1000px;
    bottom: 0;
    width: 100%;
    background: #fff;
    z-index: 1001;
    transition: all .5s;
  }
  .header-nav.open{
    left: 0;
  }
  .header-nav .nav{
    float: inherit;
    height: 70vh;
    overflow-y: scroll;
  }
  .header-nav .item{
    color: #333;
    display: block;
    border-bottom: 1px solid #eee;
  }
  .header-nav .nav-sub .icon{
    display: block;
    transform: rotate(-135deg);
    position: absolute;
    top: 30px;
    right: 20px;
    transition: all .3s;
  }
  .header-nav .nav-sub.a .icon{
    transform: rotate(45deg);
  }
  .header-nav .nav-sub .icon::after{
    content: '';
    width: 14px;
    height: 14px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -7px;
    border: 1px solid #333;
    margin-top: -7px;
    border-right: none;
    border-bottom: none;
  }
  .header-nav .nav-sub .nav-sub-list{
    position: static;
  }
  .header-nav .nav-sub .nav-sub-list::after{
    border-top: 1px solid #eee;
    top: 60px;
    right: 0;
    left: 0;
  }
  .header-nav .nav-sub .nav-sub-item{
    padding: 0 20px;
    text-align: left;
  }
  .header-nav .nav-tools{
    float: initial;
    color: #333;
    padding: 10px;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    font-size: 1em;
  }
  .header-nav .nav-tools .time .day{
    color: #e95613;
  }
  .header-nav .nav-tools .ite{
    color: #333;
  }
  .header-nav .nav-tools .lang{
    float: right;
  }
}