.bn-alp {width:100%;min-width:1200px;height:500px;position:relative;}
.bn-alp {width:100%;position:relative;}
.bn-alp ul,.bn-alp li { margin:0; padding:0; list-style:none; }
.bn-alp .bannerbox{height:100%; position:relative; }
.bn-alp .bannerbox li{width:100%;min-width:1200px;height:500px;background-position:50% 50%; background-size:cover; position:absolute; top:0; left:0; z-index:10; }
.bn-alp .bannerbox li.on { z-index:99; }
.bn-alp .bannerbox li img.bg { display:none; }
.bn-alp .bannerbox li a{ display:block; width:100%; height:100%; }
.bn-alp .i-border{overflow:hidden;width:100%;bottom:25px;position:absolute; z-index:100;}
.bn-alp .i {overflow:hidden;text-align:center;margin:0px auto;}
.bn-alp .i i { display:inline-block; margin-right:20px; width:12px; height:12px; background-color:white; cursor:pointer; border-radius: 50%;}
.bn-alp .i i.on {width:12px;height:12px;background-color:#2e3282; border-radius: 50%;}