.hearder_nav ul li{ position: relative}
.hearder_nav ul li .fwqdtc_box{ display:none}
.hearder_nav ul li:hover .fwqdtc_box{ width: 1.4rem; position: absolute; left: 50%;  top: 0.5rem;  margin-left: -0.75rem; display: inline-block;font-size: 0.16rem; text-align: center;background: #fff ;  border-radius:0.04rem;cursor: pointer;    -moz-box-shadow: 0 0 0.2rem rgb(0,0,0,0.2);-webkit-box-shadow: 0 0 0.2rem rgb(0 0 0 / 20%);box-shadow: 0 0 0.2rem rgb(0 0 0 / 20%);}
.fwqdtc_box:before{  content: ""; border-width: 0 1px 1px 0;display: inline-block;padding: 5px;
display: inline-block;background: #fff; transform: rotate(-135deg);-webkit-transform: rotate(-135deg);position: absolute; left: 50%; margin: 0 0 0 -5px;top: -6px}
.fwqdtc_box li{text-align: left;    margin: 0 0 0 0 !important; width: 100%; border-bottom: 0.01rem solid #f1f1f1;line-height: 0.5rem; height: 0.5rem }
.fwqdtc_box li:before{ content: ""; width: 0; height: 0; border-top:0.08rem solid transparent;border-bottom:0.08rem solid transparent;border-left:0.08rem solid #398fd7;position: absolute; left: 0.3rem; top: 0.16rem;  }
.fwqdtc_box li a{ color: #333 !important; height: 100%; display: block;line-height: 0.5rem; padding-left: 0.45rem  }
.fwqdtc_box li a:hover{ color: #398fd7 !important; background: #f5f9fd}