.menu-bottom {
    padding: 10px 0 0 0;
    position: fixed;
    width: 100%;
    bottom: 0;
    background-color: #fff;
    z-index: 1000;
    display: none
}
.menu-bottom a {
    color: #9d9d9d
}

.menu-bottom a p {
    font-size: 12px
}

.menu-bottom .item p {
    font-size: 12px
}

.menu-bottom .item img {
    width: 30px;
    height: 30px !important
}

.menu-bottom .course-list {
    bottom: calc(100% + 15px);
    width: 100%;
    left: 0;
    background: #fff;
    z-index: 5;
    padding: 5px 0;
    visibility: hidden
}

.menu-bottom .course-list .course-item {
    border: 1px solid #e30613;
    padding: 2px;
    flex-basis: 45%;
    text-align: center
}

.menu-bottom .course-list .course-item a {
    color: unset
}

.menu-bottom #item-2:hover .course-list, .menu-bottom #item-3:hover .course-list {
    visibility: visible
}

@media (max-width: 767px) {
    .menu-bottom {
        display: block
    }
}

@media (max-width: 405px) {
    .menu-bottom .item img {
        width: 25px;
        height: 25px !important
    }

    .menu-bottom a p {
        font-size: 11px
    }
}

.page-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}