.t-nav {
  line-height: 1;
  background-color: #f5f5f5;
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  z-index: 10;
  display: none !important;
}
.t-nav li {
  text-align: center;
}
.t-nav li:hover {
  background-color: #0060a3;
}
.t-nav li:hover a {
  color: #fff;
}
.t-nav li a {
  display: block;
  color: #343434;
  padding: 10px 0;
}
.header .nav > ul > .on > a,
.header .nav > ul > li:hover > a {
  background-color: #0060a3;
  color: #fff;
}
.header .nav > ul > li {
  position: relative;
}
.header .nav > ul > li:hover .t-nav {
  display: block;
}
.header .nav > ul > li > a {
  font-size: 15px;
}
.header .nav > ul {
  line-height: 30px;
}
.header .nav {
  height: 50px;
  display: flex;
  align-items: center;
}
.sub_nav ul li:hover a{
  color: #343434;
}
.sub_nav ul li:hover::before{
  width: 100%;
}