@import url(pub.css);
.product2{  margin:0 auto; width:100%; padding:0 ; }

.nav2{width: 98%;margin: auto;overflow: hidden;margin-top: 10px;}
.nav2 ul li{ width:22%;  float:left; text-align:center; margin:10px 1.5%; background:#0467cf; border-radius:5px; }
.nav2 ul li a{  color:#fff; padding:60% 0 10%  0;display:block;}
.nav2 ul li .nav1{  background:url(../images/tynsddj.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav21{  background:url(../images/tynsddj.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav3{  background:url(../images/tyndcb.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav4{  background:url(../images/tynfdxt.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav5{  background:url(../images/tynkzq.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav6{  background:url(../images/tynlbq.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav7{  background:url(../images/flfdj.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav8{  background:url(../images/tynlp.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav9{  background:url(../images/tynxtbj.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav10{  background:url(../images/tynrsgc.png) no-repeat 50% 20%; background-size:50%;}
.nav2 ul li .nav11{  background:url(../images/tyndj_nb.png) no-repeat 50% 20%; background-size:50%;}