/*-----------------------banner-----------------------------*/

.main_content { padding:0px 0px 0px 0px;
  width: 1004px;
  margin: 0 auto;
  position: relative;
  zoom: 1;
  min-height:500px;
  _height:500px;
}
.nf_hp_kv {
    height: 500px;
    margin: 0 -500px;
    position: relative;
    width: 2000px;
}
.nf_hp_kv .window {
    height: 500px;
    overfl/ow: hidden;
    position: relative;
    width: 2000px;
}
.nf_hp_kv .window .kv_item {
    height: 500px;
    overflow: hidden;
    padding: 0 500px;
    position: absolute;
    width: 1004px; z-index:0;
}
.nf_hp_kv .nav { width:100%; display:block;
    height: 5px;
   left:45%; 
    position: absolute; bottom:10px; z-index:10;
}
.nf_hp_kv .nav li {  margin-right:12px;
    display: inline;
    float: left;
    height: 5px;
    width: 80px;
}
.nf_hp_kv .nav li a { background:#a9a9a9;
    display: inline;
    float: left;
    height: 0; 
    overflow: hidden;
    padding-top: 5px;
    width: 80px;
}
.nf_hp_kv .nav li.active a, .nf_hp_kv .nav li a:hover { width:80px;
   background:#ff5a00;
}
.nf_hp_kv .btn_prev, .nf_hp_kv .btn_next {
    height: 88px;
    overflow: hidden;
    position: absolute;
    top: 130px;
    width: 46px;
}
.nf_hp_kv .btn_prev {
    
    left: 480px;
}
.nf_hp_kv .btn_next {
   
    right: 480px;
}


.nf_width_control { 
  width: 100%;
  overflow: hidden;
  min-width: 1000px;
  zoom: 1;
  position: relative;
}
.nf_hp_kv .imgg { width:1002px; 
    height: 104px;
   left: 25%; 
    position: absolute; top:0px; z-index:10;
}
.banner_nav{
    width:100%;
    height: 5px;
    left: 2%;
    position: absolute;
    bottom:0px;
    z-index:200;
}