.main_content {width: 1004px;margin: 0 auto 0px;position: relative;zoom: 1;}
.nf_hp_kv {margin: 0 -500px;position: relative;width: 2000px;}
.window {height: 370px;overflow: hidden;position: relative;width: 2000px;}
.kv_item {height: 370px;overflow: hidden;padding: 0 500px;position: absolute;width: 1004px;}
.js_nav { left:0;height:6px; text-align:center;width:100%;position: absolute; bottom:30px;}
.js_nav ul{ margin:0 auto; width:940px; text-align:center;}
.js_nav li {height:4px;width:50px; margin:12px; display:inline-block; *display:inline; *zoom:1;}
.js_nav li a {display: inline;float: left;height:4px;overflow: hidden;width: 100%;font-size:0; background:#363636;}
.js_nav li.active a, .js_nav li a:hover {background:#da0c0c}
.btn_prev{ left:0;}
.btn_next{right:0;}
.btn_prev, .btn_next { display:none;}