.top-banner {
    height: 400px;
    position: relative;
}
.content-swiper {
    height: 400px;
}
.index-top-container {
    width: 1200px;
    height: 0px;
    margin: 0 auto;
    position: absolute;
    top: 0;
    left: 50%;
    z-index: 1;
    transform: translateX(-50%);
}
.banner-bg {
    height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    background-size: cover;
    background-position:center;
    position: absolute;
}
.center {
    width: 1200px;
    margin: auto;
}
.center .title {
    font-size: 40px;
    line-height: 2em;
}

.center .sub-title {
    font-size: 18px;
    line-height: 2em;
}

.center .ui.button.vk {
    margin-top: 16px;
}


/*主要内容区域*/
.main-box {
    background-color: #F6F6F6;
    padding-top: 50px;
}

.main-box .center-box {
    width: 1200px;
    padding: 50px 0;
    margin: auto;
}

.area-title {
    font-size: 34px;
    color: #333;
    line-height: 1;
    text-align: center;
}

.menu-box {
    padding: 40px;
}

.menu-box .ui.secondary.menu {
    display: flex;
    justify-content: center;
}
.menu-box .ui.secondary.menu .item {
    border-radius: 20px!important;
    margin: 0 50px;
    padding: 8px 22px;
}
.menu-box .ui.secondary.menu .item.active {
    background-color: #41648a;
    color: #fff;
}


.course-container {
}

.course-container .two-column-row {
    display: flex;
    justify-content: space-between;
    width: 1200px;
    height: 340px;
}

.wide-column {
    width: 780px;
}

.wide-column .cover {
    background-color: #aaa;
    width: 780px;
    height: 317px;
    margin: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #333;
    padding-left: 40px;
}

.wide-column .cover .top {
    font-size: 30px;
    line-height: 2em;
    color: #fff;
}

.wide-column .cover .middle {
    font-size: 16px;
    line-height: 2em;
    color: #fff;
}

.wide-column .cover .bottom {
    margin-top: 20px;
}


.narrow-column {
}

.three-column-row {
    display: flex;
    width: 1200px;
    flex-wrap: wrap;
}

.column {
    height: 317px;
    margin-top: 10px;
    margin-left: 12px;
}
.three-column-row .column:nth-child(1) {
    margin-left: 0;
}
/*课程列表*/
.education-list {
    font-size: 12px;
    width: 380px;
    height: 228px;
    position: relative;
    margin-right: 10px;
    border-radius: 5px;
    transition: .3s all linear;
    background: #fff;
}

.education-list * {
    color: #999;
}

.education-list .course-card:hover .course-card-content .course-card-name {
    color: #4d7198;
}

.education-list .course-card:hover .course-card-top {
    box-shadow: 0 8px 16px 0 rgba(7, 17, 27, .1);
}

.education-list .course-card {
    width: 380px;
    height: 228px;
    background: #fff;
    border-radius: 8px;
}

.education-list .course-card .course-card-top {
    width: 380px;
    height: 228px;
    position: relative;
    border-radius: 8px;
    transition: all .3s;
}

.education-list .course-card .course-card-top .course-banner {
    width: 100%;
    height: 100%;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.education-list .course-card .course-card-top .course-type {
    position: absolute;
    top: 6px;
    right: 8px;
    transform: scale(.8);
}

.education-list .course-card .course-card-top .course-label {
    position: absolute;
    top: 6px;
    right: 8px;
    font-size: 12px;
    color: #FFF;
    line-height: 16px;
}

.education-list .course-card .course-card-top .course-label label {
    display: inline-block;
    background: rgba(7, 17, 27, .4);
    border-radius: 12px;
    padding: 4px 5px 8px 5px;
    margin-bottom: 2px;
    margin-right: 0;
    font-weight: 200;
    color: #fff;
}

.education-list .course-card .course-card-content {
    padding: 12px 8px;
    background: #fff;
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
}

.education-list .course-card .course-card-content .course-card-name {
    font-size: 14px;
    color: #07111B;
    line-height: 20px;
    word-wrap: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    max-height: 40px;
    transition: all .3s;
}

.education-list .course-card .course-card-content .course-card-bottom {
    display: flex;
    justify-content: space-between;
    margin-top: 5px;
}

.education-list .course-card .course-card-content .course-card-bottom .course-card-view {
    font-size: 12px;
    line-height: 20px;
}

.education-list .course-card .course-card-content .course-card-bottom .course-card-untime {
    font-size: 12px;
    line-height: 20px;
}

.education-list .course-card .course-card-content .course-card-price {
    color: #f01414;
}

.course-card-top .live-status {
    position: absolute;
    top: 0;
    right: 0;
    background-color: rgba(0, 0, 0, .5);
    color: #fff;
    padding: 5px 15px 5px 15px;
}

.course-divider {
    width: 100%;
    background-color: rgba(0, 0, 0, .06);
    margin: 25px 0;
    height: 1px;
}