.introduce_main_fg{width:100%;height:100%;position:absolute;display:none;;left:0px; top:0px; z-index:100;background:#666666; filter:Alpha(opacity=50);opacity:0.5;}
.introduce_show_frame_bg{width:1000px;height:600px;position:absolute;display:none;left:0px; top:0px;overflow:hidden; z-index:210;background:url(../images/main_fg.png) no-repeat top;}
.introduce_show_frame{height:473px;margin-left:59px;margin-top:52px;width:886px;position:relative;overflow:hidden;}
.introduce_show_frame_corner{position:absolute;top:9px; height:57px; width:67px;}
.introduce_show_box{width:4430px;position:absolute;left:0px;z-index:100px;}
.introduce_show_box div{width:886px;height:473px;float:left;overflow:hidden;}
.introduce_icon{width:85px;height:50px;position:absolute;display:none;left:0px; top:0px;z-index:200}
.exchange_page{width:33px;height:65px;position:absolute;top:220px;z-index:200px;cursor:pointer;	}
#pre_page{left:5px;display:none;}
#next_page{left:845px;}
.introduce_bottom{margin-top:5px;}
.introduce_bottom .exchange_btn{width:100%;text-align:center;float:left;}
.introduce_bottom .exchange_btn img{cursor:pointer;}
.introduce_bottom .introduce_close{width:80px;float:left;margin-left:-160px;margin-top:-1px;position:relative;font-size:18px;font-weight:bold;color:#141311;text-decoration: underline;cursor:pointer;}