body {margin:0;padding:0;}
.mask{width:10em;height:20em;background:url(../images/1600-2560/main_bg.jpg) no-repeat; background-size:cover;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;overflow:hidden;}
.logo{margin:0 auto;padding:0;padding-top:14%;padding-bottom:48%;width:34.25%;height:18%;text-align:center;}
.logoImg{width:100%;height:100%;}
.item{margin:0 auto;padding:0;width:100%;height:100%;/*width:21.9375em;height:11em;*/}
ul{margin:0 auto;padding:0;width:85.25%;height:18%;list-style:none;}
li.ico{float:left;margin:0 auto;margin-bottom:10%;padding:0;/*padding-bottom:3.5%;*/width:22.51%;height:46.5%;display:block;}
li.division{float:left;margin:0 auto;padding:0;/*padding-bottom:3.5%;*/width:3.32%;height:46.5%;}
.icoImg{width:100%;height:100%;}
.icoImgNoneHyperlink{width:100%;height:185%;}

.btnLink{border:0px #fff solid;display:block;}