: 6.95rem;background: rgba(2,32,56,0.9);z-index: 10;height: 13.5rem;}
.n01{width: 640px;float: left;padding: 1.5rem 0 0;height: 12rem;}
.top_bg .h_nav .n01 a{width: 320px;height: 46px;line-height: 46px;overflow: hidden;font-size: 0.7rem;color: rgba(255,255,255,0.8);text-align: left;white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.top_bg .h_nav .n01 a:before{content: "";width: 80%;height: 1px;position: absolute;bottom: 0;left: 0;background:rgba(255,255,255,0.3);}
.top_bg .h_nav .n01 a:hover{color: #fff;}
.n02{width: 550px;float: right;padding: 1rem 0 0;height: 12.5rem;}
.n02 p{width: 260px;float: left;padding: 0 0 0 15px;}
.n02 p em{width: 260px;height: 195px;display: block;line-height: 0;overflow: hidden;background: #fff;}
.n02 p em img{width: 260px;height: 195px;}
.n02 p span{display: block;font-size: 16px;color: #fff;width: 260px;text-align: center;height: 30px;line-height: 30px;white-space:nowrap; overflow:hidden; text-overflow:ellipsis;padding: 10px 0 0;}
.h_nav li.cur .n01 a{background: none;}
.jn_nav .n01{width: 800px;}
.top_bg .h_nav .jn_nav .n01 a{width:400px;}
.jn_nav .n02{width: 275px;}
.wykyj_nav .n01{padding: 2.5rem 0 0;height: 11rem;}
.top_bg .h_nav .wykyj_nav .n01 a{height: 60px;line-height: 60px;}
}
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威德杰液氮机10项行业标准修订单位
