.center-box {
    width: 1200px;
    margin: auto;
    display: flex;
    flex-wrap: wrap;
}

.top-banner {
    display: inline-block;
    height: 400px;
    width: 100%;
    background-position: center;
}

.banner-box {
    height: 400px;
    padding: 50px 0;
}

.top-banner-title {
    color: #fff;
    font-size: 40px;
    line-height: 1;
    margin: 1em 0;
}

.top-banner-desc {
    color: #fff;
    font-size: 20px;
    white-space: pre-wrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    width: 50%;
    line-height: 1.2;
}

.area-title {
    width: 100%;
    font-size: 34px;
    color: #333;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.content-box {
    width: 1200px;
    display: flex;
    flex-wrap: wrap;
    box-sizing: border-box;
    overflow: hidden;
    margin: 10px auto 0 auto;
}

/*课程列表*/
.education-list * {
    color: #999;
}

.education-list .course-card {
    width: 285px;
    border-radius: 5px;
    transition: all .3s;
    margin: 7px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);
}

.education-list .course-card:hover {
    transition: all .3s;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .2);
}

.education-list .course-card .course-card-top {
    width: 285px;
    height: 170px;
    position: relative;
    border-radius: 8px;
    transition: all .3s;
}

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

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

.education-list .course-card .course-card-content {
    padding: 12px 8px;
}

.education-list .course-card .course-card-content .course-card-name {
    font-size: 16px;
    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: 42px;
    height: 42px;
    transition: all .3s;
}

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

/*资讯列表*/
.information-list * {
    color: #999;
}

.information-list .information-card {
    width: 220px;
    border-radius: 5px;
    transition: all .3s;
    margin: 7px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);
}

.information-list .information-card .information-card-top {
    width: 220px;
    height: 120px;
    position: relative;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    transition: all .3s;
}

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

.information-list .information-card .information-card-content {
    padding: 12px 8px;
}

.information-list .information-card .information-card-content .information-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;
    height: 40px;
    transition: all .3s;
}

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

.information-source {
    display: inline-block;
    width: 50%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}


/*视频列表*/
.video-list {
    cursor: pointer;
}

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

.video-list .video-card {
    width: 260px;
    border-radius: 5px;
    transition: all .3s;
    margin: 20px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);
}

.video-list .video-card .video-card-top {
    width: 260px;
    height: 160px;
    position: relative;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    transition: all .3s;
}

.video-list .video-card .video-card-top .video-banner {
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

.video-list .video-card .video-card-top:hover .mask-play {
    display: flex;
}

.video-list .video-card .video-card-top .mask-play {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-color: rgba(0, 0, 0, .3);
    align-items: center;
    justify-content: center;
    display: none;
}

.video-list .video-card .video-card-top .mask-play .play-btn {
    color: #fff;
    font-size: 22px;
}

.video-list .video-card .video-card-top .mask-play .play-btn i {
    color: #fff;
}

.video-list .video-card .video-card-content {
    padding: 12px 8px;
}

.video-list .video-card .video-card-content .video-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;
    height: 40px;
    transition: all .3s;
}

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

.video-source {
    display: inline-block;
    width: 50%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/*文件列表*/

.cooperation {
    background-color: #F6F7F7;
    padding-bottom: 44px;
}

.cooperation-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    margin-left: 15px;
}

.cooperation-box {
    width: 260px;
    height: 65px;
    border: 1px solid #ECECEC;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin: 10px 10px;
}

.cooperation-box{
    background-color: #9498A8;
}

.cooperation-box .file-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 10px;
}

.cooperation-box .file-hover-menu {
    display: none;
    justify-content: space-evenly;
    width: 100%;
    padding: 0 20px;
}

.cooperation-box .file-hover-menu a {
    color: #fff;
}

.cooperation-box:hover .file-hover-menu {
    display: flex;
}

.cooperation-box:hover .file-title {
    display: none;
}

.solution {
    display: flex;
    width: 1200px;
    height: 400px;
    margin-bottom: 50px;
}

.solution-left {
    height: 400px;
    width: 300px;
    background: #aaa;
}

.solution-right {
    height: 400px;
    width: 900px;
    display: flex;
    flex-direction: column;
}

.solution-top {
    height: 200px;
    display: flex;
}

.solution-bottom {
    height: 200px;
    display: flex;
}

.solution-item {
    height: 200px;
    background-color: #aaa;
}

.item-300 {
    width: 300px;
    background-color: #ccc;
}

.item-300:nth-child(2) {
    width: 300px;
    background-color: #ddd;
}

.item-450 {
    width: 450px;
    background-color: #eee;
}

.item-450:nth-child(2) {
    width: 450px;
    background-color: #bbb;
}

#loadMoreNewsBtn {
    cursor: pointer;
}

#loadMoreCourseBtn {
    cursor: pointer;
}
#loadMoreVideoBtn {
    cursor: pointer;
}

#loadMoreFileBtn {
    cursor: pointer;
}

.rich-text {
    width: 1200px;
    background: #FAFAFA;
    padding: 1em;
    margin-bottom: 20px;
}

.rich-text img {
    max-width: 100%;
    height: auto;
}