.main_banner{width:100%;height:410px;}.main_banner_wrap{width:1330px;height:410px;position:relative;;margin:0 auto;}.banner_btn{width:350px;height:260px;position:absolute;display:block;z-index:9;top:60px;}.js_pre{left:-95px;}.js_pre span{left:0px;}.btn_next{right:-95px;}.btn_next span{right:0px;}.banner_btn span{width:56px;height:100px;display:block;position:absolute;top:70px;transition:0.5s;}.btn_next span{background-position:-50px 0;}.main_banner_box:hover .banner_btn_arrow{opacity:0.6;}.banner_btn span i{width:56px;height:100px;display:block;background:url(http://www.huaian.gov.cn/images/ztzl/2025/2025lh/bannerBtn.png) no-repeat 0 0;}.btn_next span i{background-position:-63px 0;}.main_banner_box{width:1180px;height:350px;margin:0px auto;position:relative;z-index:0;;}.main_banner li{overflow:hidden;position:absolute;background:#000;box-shadow:0 4px 8px rgba(0,0,0,0.15);border-radius:10px;}.main_banner li#imgCard0{width:670px;height:360px;z-index:5;left:255px;top:0px;opacity:1;background:#333d46;}.main_banner li#imgCard1{width:580px;height:260px;z-index:1;left:600px;top:60px;opacity:1;background:#333d46;}.main_banner li#imgCard2{width:450px;height:220px;z-index:1;left:0px;top:80px;opacity:0;background:#333d46;}.main_banner li#imgCard3{width:450px;height:220px;z-index:1;left:0px;top:80px;opacity:0;background:#333d46;}.main_banner li#imgCard4{width:580px;height:260px;z-index:2;left:0px;top:60px;opacity:1;background:#333d46;}.main_banner li img{width:100%;height:100%;}.main_banner li span{width:100%;height:100%;position:absolute;top:0;left:0;z-index:1;background:#000;opacity:0;filter:alpha(opacity=0);color:#fff;font-size:30px;line-height:120px;text-align:center;}.main_banner li p{width:100%;height:50px;position:absolute;left:0;bottom:-50px;background:rgba(0,0,0,0.7);color:#fff;text-indent:38px;line-height:50px;font-size:16px;}.btn_list{text-align:center;position:relative;left:0;top:20px;z-index:10;}.btn_list span{width:15px;height:15px;display:inline-block;margin:15px 5px;background:#787d82;border-radius:50%;cursor:pointer;}.btn_list span.curr{background:#FFAE00;}background:linear-gradient(to bottom,transparent,#b42d36);