.slide .hd {   overflow:hidden; position:absolute;bottom:15px; height:10px; z-index:20; text-align:center; width:100%; }
.slide .hd li { display:inline-block; margin:0 3px; cursor:pointer; border-radius:5px; background-color:#666;width:10px; height:10px;}
.slide .hd li.on {background-color:#fff;}
.slide .head_pic li{ text-align:center; width:100%; }
.slide{position: relative; width:100%; margin-bottom:15px }
.head_pic li{  height:600px; background-position:center; background-repeat:no-repeat; background-size:auto 100%; display:block}
.next,.prev{ position:absolute; height: 80px;width: 44px;top: 50%; margin-top:-44px; background: url(../img/jiantou.png) -10px center no-repeat;}
.next{ right:50%;margin-right:-550px; background:url(../img/jiantou.png) -59px center no-repeat;}
.prev{ left:50%; margin-left:-550px;}
@media screen and (max-width:740px) {
.next,.prev{ display:none;}
.head_pic li{ height:160px;}	
}