.service{ width: 1140px; height: 450px; margin: 0 auto; text-align: center;color: #010100;}
.service ul li{  width:240px; height: 370px; float: left;border: 1px solid #ededed; margin: 0 20px;}
.img_lis{display: block; width: 200px; height: 230px;  text-align: center;color: #010100; }
.job li:nth-of-type(1) a:nth-of-type(1){ background:url(../images/icon_item.png) no-repeat 60px 70px; }
/*.job li:nth-of-type(2) a:nth-of-type(1){ background:url(../images/icon_item.png) no-repeat 60px -147px;}*/
.job li:nth-of-type(2) a:nth-of-type(1){ background:url(../images/icon_item.png) no-repeat 60px -147px;}
.job li:nth-of-type(3) a:nth-of-type(1){ background:url(../images/icon_item.png) no-repeat 60px -363px;}
.job li:nth-of-type(4) a:nth-of-type(1){ background:url(../images/icon_item.png) no-repeat 60px -578px;}
.service ul li a h3{ left: 15px; position:relative;}
.service a{text-decoration: none;}
.service ul p{ width: 220px; overflow: hidden; left: 10px; position:relative;}
.btn { width: 130px; height: 45px; background-color: #4a9be4; font-size: 20px; border-radius: 40px;  text-align: center; position:relative; bottom:-20px; color: #fff;}
.btn1 { width: 130px; height: 45px; background-color: #4a9be4; font-size: 20px; border-radius: 40px; line-height: 40px; text-align: center; position:relative; bottom:-20px; left: 55px;}
.btn2 { width: 130px; height: 45px; background-color: #4a9be4; font-size: 20px; border-radius: 40px; line-height: 40px; text-align: center; position:relative; bottom:-20px; left: 55px;}
.btn3 { width: 130px; height: 45px; background-color: #4a9be4; font-size: 20px; border-radius: 40px; line-height: 40px; text-align: center; position:relative; bottom:-20px; left: 55px;}
.bth div div:nth-of-type(1){bottom:200px}
.job li:nth-of-type(1):hover .img_lis{ background:url(../images/icon_item.png) no-repeat -156px 70px;}
.job li:nth-of-type(2):hover .img_lis{ background:url(../images/icon_item.png) no-repeat -156px -146px;}
.job li:nth-of-type(3):hover .img_lis{ background:url(../images/icon_item.png) no-repeat -156px -363px;}
.job li:nth-of-type(4):hover .img_lis{ background:url(../images/icon_item.png) no-repeat -156px -578px;}