body{ font-family:Arial, Helvetica, sans-serif; }
.header .nav ul li .sub { position: absolute;width:160px;left:50%; margin-left:-80px; text-align:center; top:90px;z-index:30000; }
.b-wenhua ul li .tit { font-size:24px; }



@media (max-width: 1650px){
.a-wenhua ul li .con .icon { height:80px;}
.b-wenhua ul li .tit { font-size:22px; }
}

@media (max-width: 1400px){
.a-wenhua ul li {  height: 250px;}
.a-wenhua ul li .con .icon { height:60px;}
.b-wenhua ul li .tit { font-size:20px; }
}

@media (max-width: 1200px){
.a-wenhua ul li {  height: 280px;}
}

@media (max-width: 992px){
.b-wenhua ul li .tit { font-size:18px; }
}