*{padding:0;margin:0}
a{text-decoration:none}
body{background-color:#f5f5f5}
.header{width:100%}
.header img{width:100%;height:100%}
.s-banner{width:100%;position:relative}
.s-banner img{width:100%;height:100%}
.s-banner a{width:2.2rem;position:absolute;top:66%;left:0;right:0;margin:0 auto}
.s-banner a img{width:100%;height:100%}
.s-nav{width:100%}
.s-nav img{width:100%;height:100%}
.s-send{width:100%}
.s-send img{width:100%;height:100%}
.s-one{width:100%;position:relative}
.s-one img{width:100%;height:100%}
.s-one .s-one-a{position:absolute;top:35%;left:0;right:0;margin:0 auto;width:2.2rem}
.s-one .s-one-a img{width:100%;height:100%}
.s-one .s-one-b{width:2.2rem;position:absolute;top:80%;left:0;right:0;margin:0 auto}
.s-one .s-one-b img{width:100%;height:100%}