.mod18{ width: 931px; height: 1020px; margin: 0px auto; position: relative; }
.mod18 .btn{position:absolute;width:23px;height:48px;top:655px;cursor:pointer;z-index:99;font-size:50px;font-weight:bold;}
.mod18 .prev{left:30px;background:url(../img/prevBtn.png) no-repeat;}
.mod18 #prevTop,.mod18 #nextTop{top:356px;width:40px;height:160px;}
.mod18 #prevTop{left:60px; background:rgba(0,0,0,0.2) url(../img/prevBtn2.png) center center no-repeat;}
.mod18 #nextTop{right:60px; background:rgba(0,0,0,0.2) url(../img/nextBtn2.png) center center no-repeat;}
.mod18 #prevTop:hover { background:rgba(0,0,0,0.3) url(../img/prevBtn2_hover.png) center center no-repeat; }
.mod18 #nextTop:hover { background:rgba(0,0,0,0.3) url(../img/nextBtn2_hover.png) center center no-repeat;}
.mod18 .next{right:30px;background:url(../img/nextBtn.png) no-repeat;}
.mod18 li{float:left;}
.mod18 .cf li{position:relative;color:#fff;}
.mod18 .cf a{display:block;width:860px;height:1000px;position:absolute;color:#fff;}
.mod18 .cf a img { width:860px;height:1000px; }
.mod18 .cf li span{display:block;width:640px;position:absolute;left:0;bottom:0;padding:10px 20px;line-height:22px;text-align:left;background:rgba(0,0,0,0.6);filter:progid:DXImageTransform.Microsoft.gradient( GradientType = 0,startColorstr = "#60000000",endColorstr = "#60000000");}
.mod18 .picBox{height:1000px;width:860px; position:relative;overflow:hidden; margin:0 auto; }
.mod18 .picBox ul{height:1000px;position:absolute;}
.mod18 .picBox li{width:860px;height:1000px;}
.pic_top_bar { height:26px; background: url(../img/pic_bar_bg.png) left top no-repeat;}