.logo {
    max-height: 50px;
    transition: all 0.3s;
}

@media (min-width: 992px) {
    .logo {
        max-height: 80px;
    }
}

.navbar-light.menu-fixed {
    background-color: rgba(255, 255, 255, 0.9);
}

.navbar-dark.menu-fixed {
    background-color: rgba(0, 0, 0, 0.9);
}

.menu-fixed .logo {
    max-height: 60px;
}


/* navbar dark fix */

.navbar.navbar-dark .ddl-switch {
    color: rgba(255, 255, 255, 0.5);
}

.dropdown-menu {
    font-size: inherit;
}

.navbar-dark .dropdown-menu {
    background-color: transparent;
}

.navbar-dark .dropdown-item {
    color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 992px) {
    .navbar-dark .dropdown-menu {
        background-color: rgba(0, 0, 0, 0.9);
    }
    .navbar-dark .dropdown-item {
        color: rgba(255, 255, 255, 0.9);
    }
    .navbar-dark .dropdown-item:hover,
    .navbar-dark .dropdown-item:focus {
        color: #fff;
        background-color: #000;
    }
}

@media (min-width: 992px) {
    .navbar .ddl-switch {
        display: none !important;
    }
    .dropdown-toggle::after {
        content: none;
    }
    .navbar ul li>.dropdown-menu {
        opacity: 0;
        top: 0;
        display: block;
        margin: 0;
        padding: 0;
        min-width: 160px;
        max-width: 160px;
        transition: all 0.17s ease-in-out;
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        transform-origin: 0 0;
        -webkit-transform-origin: 0 0;
        transform: rotateX(-90deg);
        -webkit-transform: rotateX(-90deg);
    }
    .navbar .navbar-nav li .dropdown-menu>li>a {
        font-size: 13px;
        padding: 10px 20px;
        transition: all 0.5s ease 0s;
    }
    .navbar .navbar-nav li .dropdown-menu>li:last-child>a {
        border-bottom: 0;
    }
    .navbar .navbar-nav li.dropdown:hover>.dropdown-menu {
        visibility: visible;
        opacity: 1;
        transform: rotateX(0deg);
        -webkit-transform: rotateX(0deg);
        transition: transform 0.4s, opacity 0.1s;
    }
    .navbar .navbar-collapse ul.navbar-nav>li>.dropdown-menu {
        margin-top: 10px;
        top: 100%;
    }
    .navbar .navbar-collapse>ul>li:last-child>.dropdown-menu,
    .navbar .navbar-collapse>ul>li:nth-last-child(2)>.dropdown-menu {
        left: auto;
        right: 0;
    }
    .navbar ul>li .dropdown-menu ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child>.dropdown-menu,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2)>.dropdown-menu,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul ul ul {
        left: auto;
    }
    .navbar ul>li>.dropdown-menu,
    .navbar ul>li .dropdown-menu ul,
    .navbar ul>li .dropdown-menu ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul ul ul ul {
        right: auto;
    }
    .navbar ul>li .dropdown-menu ul,
    .navbar ul>li .dropdown-menu ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul ul ul ul {
        left: 100%;
    }
    .navbar ul>li .dropdown-menu ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul ul,
    .navbar ul>li .dropdown-menu ul ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:last-child .dropdown-menu ul ul ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul,
    .navbar .navbar-collapse>ul>li:nth-last-child(2) .dropdown-menu ul ul ul ul ul ul ul ul ul {
        right: 100%;
    }
}

@media (max-width: 991px) {
    .navbar .navbar-nav>li>a {
        transition: all 1s ease 0s;
    }
    .navbar .collapse.show {
        display: block;
        overflow-y: auto;
    }
    .navbar .navbar-toggler {
        border: none;
        border-radius: 0;
        font-size: 20px;
        padding: 0;
        z-index: 1;
        outline: none;
        padding-right: 0;
        cursor: pointer;
    }
    .navbar .navbar-toggler .line {
        display: flex;
        width: 2.2rem;
        height: 2px;
        background: rgba(0, 0, 0, 0.9);
        transition: all 0.3s ease-out;
        animation: resize 1.3s ease-in-out infinite alternate !important;
        animation-duration: 1.3s !important;
        animation-timing-function: ease-in-out !important;
        animation-delay: 0s !important;
        animation-iteration-count: infinite !important;
        animation-direction: alternate !important;
        animation-fill-mode: none !important;
        animation-play-state: running !important;
        animation-name: resize !important;
    }
    .navbar.navbar-dark .navbar-toggler .line {
        background: rgba(255, 255, 255, 0.9);
    }
    .navbar .navbar-toggler .second-line {
        margin: 0.5rem 0;
    }
    .navbar-toggler[aria-expanded=true] .first-line {
        transform: rotate(25deg) translate3d(0.5rem, 0.5rem, 0);
        transform-origin: center;
    }
    .navbar-toggler[aria-expanded=true] .second-line {
        transform: scale3d(0, 1, 1);
    }
    .navbar-toggler[aria-expanded=true] .third-line {
        transform: rotate(-25deg) translate3d(0.5rem, -0.5rem, 0);
        transform-origin: center;
    }
    .navbar .ddl-switch {
        cursor: pointer;
        font-size: 18px;
        padding: 2px 6px;
        position: absolute;
        right: 0;
        top: 9px;
        z-index: 100;
    }
    .navbar .ddl-active>.ddl-switch:before {
        content: "\f106";
    }
    .navbar .navbar-nav>li.dropdown .dropdown-toggle::after {
        display: none;
    }
    .navbar .dropdown-menu {
        border: 0;
    }
    .navbar .navbar-nav>li:last-of-type {
        margin-bottom: 15px;
    }
}

.navbar.bg-gradient {
    background-color: rgba(2, 29, 68, 1);
    border-bottom: 2px solid red;
}

.bg-gradient::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: -1;
    pointer-events: none;
    display: none;
}

@media (min-width: 992px) {
    .navbar.bg-gradient {
        background-color: transparent;
    }
    .navbar.bg-gradient::after {
        height: 200%;
        display: block;
        background: rgba(2, 29, 68, 1);
        background: -moz-linear-gradient(top, rgba(2, 29, 68, 1) 0%, rgba(2, 29, 68, 0) 100%);
        background: -webkit-gradient(left top, left bottom, color-stop(0%, rgba(2, 29, 68, 1)), color-stop(100%, rgba(2, 29, 68, 0)));
        background: -webkit-linear-gradient(top, rgba(2, 29, 68, 1) 0%, rgba(2, 29, 68, 0) 100%);
        background: -o-linear-gradient(top, rgba(2, 29, 68, 1) 0%, rgba(2, 29, 68, 0) 100%);
        background: -ms-linear-gradient(top, rgba(2, 29, 68, 1) 0%, rgba(2, 29, 68, 0) 100%);
        background: linear-gradient(to bottom, rgba(2, 29, 68, 1) 0%, rgba(2, 29, 68, 0) 100%);
        filter: progid: DXImageTransform.Microsoft.gradient( startColorstr='#021d44', endColorstr='#021d44', GradientType=0);
    }
    .navbar-dark .dropdown-menu {
        background-color: rgba(0, 0, 0, 0.8);
    }
    .navbar-dark .dropdown-item {
        color: rgba(255, 255, 255, 0.8);
    }
    .navbar-dark .dropdown-item:hover,
    .navbar-dark .dropdown-item:focus {
        color: #fff;
        background-color: rgba(0, 0, 0, 0.9);
    }
}


/* collapse-right 增加在nav上与navbar-collapse collapse同时使用 手机版（侧边出）样式菜单*/

@media (max-width: 992px) {
    .navbar .navbar-collapse.collapse-right {
        margin-top: 85px;
        padding-left: 20px;
        padding-right: 20px;
        position: fixed;
        top: 0;
        bottom: 0;
        background-color: #fff;
        right: 0;
        display: block;
        transition: all 0.3s ease-out;
        transform: translateX(100%);
        z-index: 99;
    }
}

.navbar .collapse.collapse-right.show {
    right: 0;
    transition: all 0.3s ease-out;
    transform: translateX(0);
}