#main-navigation {
    position: absolute;
    width: 100%;
    z-index: 100;
}

.logo {
    margin-top: 40px;
    width: 180px;
    height: 68px;
    background: url(../images/logo.png) no-repeat;
}

#main-navigation .nav-pills>li.active>a,
#main-navigation .nav-pills>li.active>a:focus,
#main-navigation .nav-pills>li.active>a:hover {
    color: #FFF;
    background-color: transparent;
}
#nav{
    margin-top: 40px;
}
#nav>li.active>a::after {
    content: "";
    position: absolute;
    width: 50%;
    height: 6px;
    background: #FFF;
    border-radius: 3px;
    top: 50px;
    display: block;
}

.nav .open>a,
.nav .open>a:focus,
.nav .open>a:hover {
    background-color: transparent;
    font-size: 18px;
}

#nav>li>a {
    font-size: 18px;
    font-family: PingFangSC-Medium, PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 30px;
    display: flex;
    justify-content: center;   
}

#nav>li>a:hover,
#nav>li>a:focus {
    color: #0088FF;
    background-color: transparent;
}

.dropdown-menu {
    font-size: 18px;
    color: #fff;
    background: #fff;
}

#main-navigation .navbar-right .dropdown-menu {
    right: auto;
    left: auto;
}

#main-navigation .dropdown-menu>.active>a,
#main-navigation .dropdown-menu>.active>a:focus,
#main-navigation .dropdown-menu>.active>a:hover {
    color: #0088FF;
    text-decoration: none;
    background-color: #F3F4F6;
    outline: 0;
}

.dropdown-menu>li>a {
    display: block;
    padding: 8px 20px;
    clear: both;
    font-weight: 400;
    line-height: 1.9;
    white-space: nowrap;
    font-size: 18px;
    font-weight: 400;
    color: #8B96A6;
}