/*导航*/

@media (min-width: 992px) {
    .navbar-expand-lg {
        padding: 0;
        margin: 0;
    }
    .navbar-nav .nav-link {
        padding: 0;
        color: #222;
    }
    .navbar-expand-lg .navbar-collapse {
        display: block !important;
        padding: 0;
    }
    .navbar-nav {
        display: flex;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
    }
    button.navbar-toggler.navbar-toggler-right {
        display: none;
    }
    ul.dropdown-menu.show {
        position: absolute;
        list-style: none;
        padding-left: 0;
        font-size: 16px;
        line-height: 22px;
        margin: 0;
        left: 0;
        padding: 0px;
        width: auto;
        background: rgba(255, 255, 255, 1);
        border-top: 0;
        border-bottom: 4px solid #8C0715;
        border-radius: 0;
    }
    ul.dropdown-menu>li.dropdown-item {
        padding: 0 18px;
        width: 100%;
    }
    ul.dropdown-menu>li.dropdown-item a {
        color: #666666;
        border-top: 1px solid #cccccc;
        padding: 13.5px 0px 14.5px;
        width: 100%;
        display: block;
    }
    ul.dropdown-menu.show>li.dropdown-item:first-child a {
        border-top: 0 !important;
    }
    ul.dropdown-menu li.dropdown-item:hover, ul.dropdown-menu li.dropdown-item.active {
        background: rgba(187, 42, 50, 0.65);
    }
    ul.dropdown-menu li.dropdown-item:hover a, ul.dropdown-menu li.dropdown-item.active a {
        border-top: 0 !important;
        color: #ffffff;
    }
    ul.dropdown-menu li.dropdown-item:hover+li>a {
        border-top: 0 !important;
    }
    .navbar-nav:after {
        display: none;
    }
    .navbar-nav .nav-item {
        padding: 23px 0;
        margin-bottom: 0;
        flex: 1;
        text-align: center;
        position: relative;
    }
    .navbar-nav .nav-item::before {
        content: '';
        display: block;
        width: 2px;
        height: 18px;
        background-color: rgba(255, 255, 255, 0.46);
        position: absolute;
        left: 0;
        top: 50%;
        margin-top: -9px;
    }
    .navbar-nav .nav-item:first-of-type::before {
        display: none;
    }
    .sidebar_first .navbar-nav .nav-item::before {
        display: none;
    }
    .navbar-nav .nav-link {
        padding: 0;
        color: #fff;
        font-size: 18px;
        line-height: 24px;
    }
    .navbar-nav .nav-link.is-active {
        font-weight: bold;
    }
    .navbar-nav .nav-link:focus {
        outline: none;
    }
    .dropdown-toggle::after {
        display: none;
    }
}

@media (max-width: 991px) {
    body {
        padding-top: 70px;
    }
    .head_top_menu {
        background: transparent;
    }
    .navbar-form {
        display: none;
    }
    .navbar {
        padding: 0;
    }
    .navbar-toggler {
        background-color: rgba(255, 255, 255, 0);
        border-radius: 5px;
        border: none;
        padding: 5px 8px;
        position: fixed;
        width: 40px;
        height: 36px;
        top: 10px;
        right: 10px;
        z-index: 12;
    }
    .navbar-toggler.collapse {
        background-color: rgba(0, 0, 0, 0);
    }
    .navbar-toggler span {
        display: block;
        width: 24px;
        height: 2px;
        border-radius: 2px;
        position: absolute;
        top: 50%;
        left: 8px;
        margin-top: -1px;
        background-color: none;
        transition: all 0.5s;
    }
    .navbar-toggler span::before, .navbar-toggler span::after {
        content: '';
        display: block;
        width: 100%;
        height: 2px;
        overflow: hidden;
        position: absolute;
        left: 0;
        background-color: #ffffff;
        border-radius: 2px;
        transition: all 0.5s;
    }
    .navbar-toggler span::before {
        top: 0;
        transform: rotate(-45deg);
    }
    .navbar-toggler span::after {
        bottom: 0;
        transform: rotate(45deg);
    }
    .navbar-toggler[aria-expanded="false"] span::before {
        top: -8px;
        transform: none;
    }
    .navbar-toggler[aria-expanded="false"] span::after {
        bottom: -8px;
        transform: none;
    }
    .navbar-toggler[aria-expanded="false"] span {
        background-color: #333;
    }
    .navbar-toggler[aria-expanded="false"] span::before, .navbar-toggler[aria-expanded="false"] span::after {
        background-color: #333;
    }
    .navbar-toggler[aria-expanded="true"] span::before, .navbar-toggler[aria-expanded="true"] span::after {
        background-color: #fff;
    }
    .navbar-collapse {
        width: 100%;
        height: 100%!important;
        background-color: rgba(0, 0, 0, 0.85);
        position: fixed;
        top: 0;
        left: 0;
        padding: 60px 20px;
        z-index: 11;
        transition: all 0.25s ease;
        transform: translate3d(100%, 0, 0);
        -webkit-transition: all 0.25s ease;
        -moz-transition: all 0.25s ease;
        -ms-transition: all 0.25s ease;
        -o-transition: all 0.25s ease;
        -webkit-transform: translate3d(100%, 0, 0);
        -moz-transform: translate3d(100%, 0, 0);
        -ms-transform: translate3d(100%, 0, 0);
        -o-transform: translate3d(100%, 0, 0);
    }
    .navbar-collapse.show {
        transform: translate3d(0, 0, 0);
    }
    #block-mytheme-main-menu>ul>li {
        margin: 0;
        padding: 0;
    }
    .navbar-nav li a.nav-link {
        padding: 8px 20px;
        display: block;
        color: #ffffff;
    }
    .navbar-nav li.active a {
        font-weight: bold;
        background-color: transparent;
    }
    .dropdown-menu.show {
        background-color: rgba(0, 0, 0, 0.7);
    }
    .dropdown-item.active {
        background-color: rgba(0, 0, 0, 0.7);
        color: #fff;
    }
    .navbar-nav li.nav-item {
        position: relative;
    }
    .navbar-nav li.nav-item.dropdown:after {
        content: '';
        box-sizing: content-box;
        display: block;
        width: 8px;
        height: 8px;
        border: 2px solid rgba(255, 255, 255, 0.4);
        border-top: 2px solid transparent;
        border-left: 2px solid transparent;
        margin: auto;
        position: absolute;
        right: 20px;
        top: 13px;
        transform: rotate(-45deg);
        transition: all 0.5s;
        border-radius: 2px;
    }
    .navbar-nav li.nav-item.dropdown.show:after {
        transform: rotate(-135deg);
        top: 16px;
    }
    header#header {
        position: fixed!important;
        width: 100%;
        height: 70px;
        top: 0;
        left: 0;
        z-index: 11;
        transition: all 0.25s;
        -webkit-transition: all 0.25s;
        -moz-transition: all 0.25s;
        -ms-transition: all 0.25s;
        -o-transition: all 0.25s;
    }
    a.navbar-brand {
        margin-top: 5px!important;
        height: 50px;
        max-width: 100%;
    }
    a.navbar-brand img {
        height: 100%
    }
    body.scrolled .header {
        background-color: rgba(255, 255, 255, 0.9)
    }
    #navbar-main {
        height: 100%;
    }
    .nav>li>a:focus, .nav>li>a:hover {
        background-color: rgba(0, 0, 0, 0.7);
    }
    #navbar-main {
        height: auto;
    }
    a.navbar-brand {
        margin-top: 0;
    }
    .navbar-nav li a.nav-link {
        font-size: 16px;
    }
    .navbar-expand-lg .navbar-collapse {
        padding: 60px 20px;
    }
    .dropdown-menu.show li a {
        color: #ffffff !important;
        padding-left: 15px;
    }
    .dropdown-menu.show li.dropdown-item:focus, .dropdown-menu.show li.dropdown-item:hover a {
        color: #333333 !important;
    }
    .dropdown-toggle::after {
        display: none;
    }
    
}