/* 导航栏蓝色下划线 开始*/
.nav-menu>ul>li>a:hover, .nav-menu>ul>li>a:focus, .nav-menu>ul>li.active>a {
  background: transparent;
  color: #6b97f8;
}
@media only screen and (min-width: 768px){
  .nav-menu>ul>li>a:hover:after, .nav-menu>ul>li.active>a:after {
      width: 100%;
  }
}
.drop-down {
  position: relative;
}
.drop-down>a:before {
  font-family: 'FontAwesome';
  content: "\f054";
  font-size: 6px;
  margin-left: 6px;
  margin-top: 2px;
  float: right;
  -webkit-transform: rotate(90deg);
  -ms-transform: rotate(90deg);
  transform: rotate(90deg);
  -webkit-transition: 0.2s transform;
  transition: 0.2s transform;
}
.dropdown {
  position: absolute;
  right: -50%;
  top: 0;
  background-color: #6b97f8;
  width: 200px;
  -webkit-box-shadow: 0px 5px 5px -5px rgba(53, 64, 82, 0.2);
  box-shadow: 0px 5px 5px -5px rgba(53, 64, 82, 0.2);
  -webkit-transform: translateY(15px) translateX(50%);
  -ms-transform: translateY(15px) translateX(50%);
  transform: translateY(15px) translateX(50%);
  opacity: 0;
  visibility: hidden;
  -webkit-transition: 0.2s all;
  transition: 0.2s all;
}
.nav-menu>.drop-down>.dropdown {
  top: 100%;
  right: 50%;
}
.nav-menu>.drop-down>.dropdown .dropdown.dropdown-left {
  right: 150%;
}
.dropdown li a {
  display: block;
  color: #FFF;
  border-top: 1px solid rgba(250, 250, 250, 0.1);
  padding: 10px 0px;
}
.dropdown li:nth-child(1) a {
  border-top: none;
}
.drop-down:hover>.dropdown {
  opacity: 1;
  visibility: visible;
  -webkit-transform: translateY(0px) translateX(50%);
  -ms-transform: translateY(0px) translateX(50%);
  transform: translateY(0px) translateX(50%);
}
.drop-down:hover>a:before {
  -webkit-transform: rotate(0deg);
  -ms-transform: rotate(0deg);
  transform: rotate(0deg);
}
/* 导航栏蓝色下划线 结束 */