.qiehuan{line-height: 30px;border-bottom: 1px solid #ccc;white-space: nowrap; max-width:1260px; overflow: hidden;*/}
.qiehuan .item{width: 19.5%;  display: inline-block; float: left; text-align: center; vertical-align: top;padding:  0 ; /*position: relative; display: inline-block; */}
.qiehuan .item:before{ position: absolute;left: 0;width: 0;bottom: -1px;content: '';height: 2px;background: #557376;}
.qiehuan .item.on:before{width: 100%;}
.qiehuan .on { background-color: #ffb900; color: #002b45 ; float:left;  }
.qiehuan .on :hover { color: #fff ;}
.qiehuan  a:hover {line-height: 30px;background:#fdd100; color: #002b45 ;} 
.warranty { border: 1px solid #eee; padding: 30px; }
.marginBot2 { margin-bottom: 2%; }
.warranty {border: 1px solid #eee;padding: 30px;}
.warranty .box { display: flex; justify-content: space-between; }
.warranty .box .item { width: 24%; text-align: center; }

.warranty h4 { width: 100px; background: #f8c300; -moz-border-radius: 50px; -webkit-border-radius: 50px; border-radius: 50px; margin: 0 auto; }
.warranty .boxBlack h4 {background: #041E41;}
.warranty h4 em { font-size: 50px; line-height: 100px; color: #fff; }
.warranty h3 { font-size: 18px; }
.warranty h2 { font-size: 20px; text-align: center; }
.serivcefoot {display: flex; justify-content: space-between; margin-top: 30px;}
.serivcefoot .item {width: 57%; }
.warranty .serivcefoot img { width: 40%; }
@media only screen and (max-width: 760px){
.qiehuan .item {  display: inline-block; float: left;padding:0 5px 0 0 ;width: 100%; background:#ffb900; border-bottom:white solid 1px; }
  
}