#Download{width: 1064px;height: 120px;text-align:center;position:absolute;top: 905px;left:50%;margin-left: -371px;z-index:51;border-radius:5px;}
#Download .btn_down_s1{float:left;width: 324px;height: 120px;text-indent:-999em;margin-right: 80px;background:url(../images/btn1.png) no-repeat left top;}
#Download .btn_down_s2{float:left;width: 324px;height: 120px;text-indent:-999em;margin-right: -1px;background:url(../images/btn2.png) no-repeat left top;}
#Download .btn_down_s1:hover{margin-top: -5px}
#Download .btn_down_s2:hover{margin-top: -5px}




.topcontainer {
    width: 1920px;
    height: 1018px;
    left: 50%;
    margin-left: -960px;
    overflow: hidden;
    position: relative;
    background: url() no-repeat center;
    background-position: 0px 0px;
    margin-top: 68px;
}















.daohang{width:1920px;height:60px;left:50%;margin-left:-960px;overflow:hidden;position:relative;background:url(../images/daohang.jpg) no-repeat center;background-position-x:center;background-position-y:center;background-position:0px -0px}
#downloaddh{width:1400px;height:51px;position:absolute;top:-5px;left:50%;margin-left:280px;z-index:1500;}
#downloaddha{float:left;width:1400px;height:51px;overflow:hidden;margin-right:20px;margin-top:10px}
#downloaddha .btn_downa{float:left;width:110px;height:51px;;position:relative;text-indent:-9999em;background:url(../images/d1.png) no-repeat left bottom;display:block;}
#downloaddha .btn_downa:hover{text-decoration:none;;background:url(../images/d1.png) no-repeat left top;}
#downloaddha .btn_downb{float:left;width:110px;height:51px;position:relative;text-indent:-9999em;background:url(../images/d2.png) no-repeat left bottom;display:block;margin-left:20px;}
#downloaddha .btn_downb:hover{text-decoration:none;background:url(../images/d2.png) no-repeat left top;}
#downloaddha .btn_downc{float:left;width:110px;height:51px;position:relative;text-indent:-9999em;background:url(../images/d3.png) no-repeat left bottom;display:block;margin-left:20px;}
#downloaddha .btn_downc:hover{text-decoration:none;background:url(../images/d3.png) no-repeat left top;}
#downloaddha .btn_downd{float:left;width:110px;height:51px;position:relative;text-indent:-9999em;background:url(../images/d4.png) no-repeat left bottom;display:block;margin-left:20px;}
#downloaddha .btn_downd:hover{text-decoration:none;background:url(../images/d4.png) no-repeat left top;}