body {
    font-size: 14px !important;
    font-family: "微软雅黑";
    margin: 0px;
    padding: 0px;
    color: #505050;
    background: #f7f7f7 !important;
}
.w_1200{ width:1200px; margin:0 auto;}
.po_r{ position: relative;}

/**头部**/
.head{ width: 100%; height: 80px; background: #fff; position: relative; z-index: 10000;}
.logo{ position: absolute; left: 0; top: 0; width: 270px; height: 140px;  }
.hot-phone{ width: 185px; height: 80px; float: right;}
.v300_nav{ float: left; margin-left: 280px; height: 80px; line-height: 78px; z-index: 100;}
.v300_nav .v300_li{ position: relative; float:left;height:80px; font-size:16px; padding: 0 26px;  color:#333333; text-align: center;}
.v300_nav .v300_li a{ color: #505050; text-decoration: none; line-height: 78px; height: 78px; display: block; border-bottom: 2px solid #fff; }
.v300_nav .v300_lidq{ padding: 0 26px; }
.v300_nav .v300_lidq a{color:#1d2879 !important; line-height: 78px;  display: block;  border-bottom: 2px solid #1d2879;}
.v300_nav .v300_dorp{ position: absolute; top: 89px; left: 50%; margin-left: -50px;  width:100px;  background:url("../../../images/21/v300_23/bg-pop.png") repeat; display:none; border-radius:5px; }
.v300_nav .v300_dorp em{ width: 12px; height: 9px; position: absolute; top: -9px; left: 50%; margin-left: -6px; display: block; background: url("../../../images/21/v300_23/arr-top-pop.png") no-repeat;}
.v300_nav .v300_dorp ul li{height:35px;width:100%; line-height: 35px; font-size: 12px; padding: 0; border: 0;overflow: hidden;}
.v300_nav .v300_dorp ul li a{color:#fff !important; display: block; width: 100%;line-height: 35px;  background: none;border: 0;}
.v300_nav .v300_dorp ul li:hover {background:#1d2879;  color:  #fff!important}
.v300_nav .v300_dorp ul li:hover:first-child{ border-radius: 5px 5px 0 0;}
.v300_nav .v300_dorp ul li:hover:last-child{ border-radius: 0 0 5px 5px;}