.navtop_box {
  height: 66px;
  box-shadow: 0px 4px 4px 0px rgba(239, 225, 207, 0.2);
}
.navtop_box .logo {
  width: 240px;
  height: 66px;
  display: block;
  margin: 0 auto;
}
.navtop_box .content {
  width: 1200px;
  margin: 0 auto;
  display: flex;
}
.navtop_box .content .item_f {
  float: left;
  width: 20%;
  position: relative;
  cursor: pointer;
}
.navtop_box .content .item_f:hover {
  color: #BC9B63;
}
.navtop_box .content .item_f:hover .tri {
  border-top: 5px solid #BC9B63;
}
.navtop_box .content .item_f:hover ul {
  display: block;
}
.navtop_box .content .item_f .tri {
  display: inline-block;
  vertical-align: middle;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid #333;
}
.navtop_box .content .item_f .bd {
  line-height: 66px;
  height: 66px;
  text-align: center;
}
.navtop_box .content .item_f ul {
  display: none;
  position: absolute;
  left: 15px;
  top: 66px;
  background: #fff;
  padding: 10px 0;
  z-index: 999;
  list-style: none;
  width: 160px;
  box-shadow: 0px 2px 7px 1px rgba(149, 149, 149, 0.2);
  border-radius: 0px 0px 6px 6px;
}
.navtop_box .content .item_f ul a {
  height: 35px;
  line-height: 35px;
  padding-left: 15px;
  display: block;
}
.navtop_box .content .item_f ul a:hover {
  color: #BC9B63;
}