.header{width:100%;z-index:999;background: #005529;}
/*logo*/
.nav{height:117px;padding:12px 5%;border-top:3px solid #008643;}
.nav .logo{margin:25px 0 0;}
.nav .logo img{display:block;}
/*nav*/
.nav_nr{margin-left:45px;margin-top:58px;width:1310px;}
.nav_nr .dh_1{float:left;margin:10px 10px;width:110px;text-align: center;position: relative;margin-bottom:0;padding-bottom:10px;}
.nav_nr .dh_1 .dh_1_fl{color:#fff;font-size: 18px;}
.nav_nr .dh_1:hover .dh_1_fl{color:#9ad40c;}

.dh_2{position: absolute;top:34px;width: 100%;background-color: rgba(89,174,141,.7);left: 0;z-index: 99; opacity: 0; visibility: hidden; transition:all .3s ease-out 0s; transform:translate3d(0,10px,0); -moz-transform:translate3d(0,10px,0); -webkit-transform:translate3d(0,10px,0);}
.dh_2 li{border: none;height: 40px;line-height: 40px;border-top:2px solid rgba(255,255,255,1);overflow: hidden;}
.dh_2 li:before{width: 0;height:0 }
.dh_2 li .dh_2_fl{color: #fff;font-size: 15px}
.dh_1:hover .dh_2{opacity:1; visibility:visible; transform:translate3d(0,0,0); -moz-transform:translate3d(0,0,0); -webkit-transform:translate3d(0,0,0);}

/*banner*/
.slideBox{ width:100%; overflow:hidden; position:relative;}
.slideBox .bd{position:relative; height:100%; z-index:0;}
.slideBox .bd li { zoom:1; vertical-align:middle;}
.slideBox .bd img { width:100%; display:block;}
.vid_but{position: absolute;bottom:40px;right:15%;cursor:pointer;}