@charset "UTF-8";
.breadcrumb-box {
    max-width: 1250px
}

.breadcrumb-box .breadcrumb {
    margin: 32px 0 33px 0
}

.info-box {
    max-width: 1250px;
    margin: 0 auto
}

.info-box .title-box {
    margin-bottom: 30px;
    width: 100%;
}

.info-box .activity-box {
    margin: 0 0 37px;
    padding: 17px 20px 20px;
    background: #f8f8f8;
    width: 100%;
}

.info-box .activity-box .a-title {
    line-height: 22px;
    margin-bottom: 12px;
    font-size: 18px;
    color: #434343
}

.info-box .activity-box .a-desc {
    line-height: 30px;
    margin-bottom: 0;
    height: 115px;
    font-size: 16px;
    color: #333;
    text-align: justify;
}
/*导读讲堂列表页图片无图时显示默认图*/
.tab-content .media .media-video .without-img {
    position: relative;
    width: 100%;
    height: 163px!important;
    margin-right: 0!important;
}
.info-box .activity-box .a-desc::-webkit-scrollbar {
    width: 5px
}

.info-box .activity-box .a-desc::-webkit-scrollbar-track {
    background: 0 0
}

.info-box .activity-box .a-desc::-webkit-scrollbar-thumb {
    background: #1296db;
    border-radius: 3px
}

.info-box .activity-box .related-desc-box {
    height: 175px;
}

.info-box .activity-box .apply-btn-box {
    margin: 0;
    text-align: center
}

.info-box .activity-box .apply-btn-box a {
    display: inline-block;
    padding: 8px 20px;
    text-decoration: none;
    color: #fff;
    font-size: 14px;
    background: #1296db;
    border-radius: 30px;
    -webkit-border-radius: 30px;
    -moz-border-radius: 30px;
    -ms-border-radius: 30px;
    -o-border-radius: 30px
}

.section {
    max-width: 1250px;
    margin: 0 auto
}

.section .nav-tabs {
    padding: 0 30px;
    /* 导读讲堂筛选条下面的边距 */
    margin-bottom: 22px;
}

.section .list-box {
    overflow: hidden
}

.section .list-box .media {
    /* padding-bottom: 40px; */
    margin-bottom: 40px;
    border-bottom: 1px solid #ddd;
    padding: 0 40px 2px;
}

.section .list-box .media-video {
    width: 100%;
    padding: 0;
    margin-right: 12px;
    max-width: 370px;
    max-height: 210px;
    border-radius: .71em!important;
    -webkit-border-radius: .71em!important;
    -moz-border-radius: .71em!important;
    -ms-border-radius: .71em!important;
    -o-border-radius: .71em!important;
    position: relative;
    overflow: hidden;
}

.section .list-box .mr-3,
.section .list-box .mx-3 {
    width: 100%;
    height: 100%;
    margin-right: 0!important
}

.section .list-box .mask {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 1;
    left: 0;
    top: 0;
    transition: .3s;
    transform: rotateX(0deg) scale(1);
    background: rgba(0,0,0,.3);
    /*width: 100%;*/
    /*height: 100%;*/
    /*background-color: rgba(0, 0, 0, .3);*/
    /*position: absolute;*/
    /*top: 0;*/
    /*left: 0;*/
    /*z-index: 1*/
}
.section .list-box .media-video:hover img {
    width: 105%;
    height: 100%;
    margin-top: -8px;
    margin-left: -10px;
}

.section .list-box .icon-play {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -17px;
    margin-top: -17px;
    z-index: 2
}

.section .list-box .media-body {
    padding-top: 13px;
    margin: 0 -6px;
}

.section .list-box .mt-0 {
    line-height: 36px;
    /* 导读讲堂视频下面的文字区域字号不加粗 */
    /* padding-right: 80px; */
    font-size: 16px;
    margin-bottom: 34px;
    /* font-weight: 700; */
    color: #333;
    position: relative
}

.section .list-box .mt-0::after {
    content: "";
    display: inline-block;
    width: 100px;
    height: 3px;
    background: #1296db;
    position: absolute;
    bottom: -14px;
    left: 15px
}

.section .list-box .mt-0 a {
    color: #333;
    text-decoration: none
}

.section .list-box .mt-0 a>span {
    background-color: #1296db;
    padding: 0.2rem 0.6rem;
    margin-right: 0.9rem;
    border-radius: 5px;
    color: white;
    font-size: 10px;
    font-weight: normal;
}

.section .list-box .teacher {
    margin-bottom: 19px;
    font-size: 18px;
    color: #333
}

.section .list-box .teacher a {
    color: #333;
    text-decoration: none
}

.section .list-box .lesson_info {
    margin: 0;
    font-size: 16px;
    color: #999
}

.section .list-box .lesson_join_num,
.section .list-box .lesson-time {
    padding-left: 0;
    -ms-flex-item-align: center;
    -ms-grid-row-align: center;
    align-self: center
}
.section .list-box .lesson-time {
    z-index: 4;
}
.section .list-box .play_btn {
    padding: 6px 24px;
    background: #1296db;
    border-radius: 30px;
    color: #fff;
    text-align: center;
    text-decoration: none;
    max-width: 150px;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: distribute;
    justify-content: space-around
}

.section .pagination {
    margin: 20px 0 60px 0
}

.detail {
    max-width: 1250px;
    margin: 0 auto;
    margin-top: 40px
}

.detail .video-box {
    margin-bottom: 20px
}

.detail .video-box video {
    width: 100%;
    height: 100%
}

.detail .tools {
    margin-bottom: 22px;
    font-size: 14px;
    line-height: 40px;
    color: #757575;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: end;
    justify-content: flex-end
}

.detail .tools [class^=icon] {
    margin: 0 0 0 15px
}

.detail .title {
    line-height: 36px;
    margin-bottom: 27px;
    font-size: 20px;
    font-weight: 700;
    color: #333
}

.detail .desc,
.detail .teacher {
    line-height: 36px;
    font-size: 16px;
    color: #666
}

.detail .teacher {
    margin-bottom: 27px
}

.detail .desc {
    margin-bottom: 60px
}

.detail .lft-box {
    padding-right: 0
}

.detail .rgt-box {
    padding-left: 0;
    padding-right: 0;
    padding-top: 0;
    border-top: 10px solid #1296db
}

.detail .recommend-list {
    box-shadow: 0 2px 10px 1px rgba(0, 0, 0, .1);
    padding: 0 15px 0 20px
}

.detail .recommend-title {
    padding-top: 17px;
    padding-bottom: 17px;
    padding-left: 14px;
    margin-bottom: 0;
    font-size: 18px;
    font-weight: 700;
    color: #333;
    position: relative
}

.detail .recommend-title::after {
    content: "";
    display: inline-block;
    width: 4px;
    height: 27px;
    background: #1296db;
    position: absolute;
    top: 17px;
    left: 0
}

.detail .recommend-media {
    padding-bottom: 30px
}

.detail .recommend-media .mr-3 {
    margin-right: 10px!important;
    max-width: 115px;
    max-height: 90px;
    position: relative;
    overflow: hidden
}

.detail .recommend-media .mr-3 img {
    width: 100%;
    height: 100%
}

.detail .recommend-media .mask {
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .3);
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1
}

.detail .recommend-media .icon-play-small {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -12px;
    margin-top: -12px;
    z-index: 2
}

.detail .recommend-media .mt-0 {
    line-height: 19px;
    margin-bottom: 11px;
    font-size: 14px;
    font-weight: 700;
    color: #333
}

.detail .recommend-media .mt-0 a {
    color: #333;
    text-decoration: none;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.detail .recommend-media .apply-num,
.detail .recommend-media .author {
    margin-bottom: 2px;
    font-size: 12px;
    color: #999
}

.detail .recommend-media .apply-num a,
.detail .recommend-media .author a {
    color: #999;
    text-decoration: none
}

.detail .recommend-media .apply-num {
    margin-bottom: 0
}
/*移动导读讲堂列表页index的cssstart*/
.section .tab-content > .active {
    display: flex;
}
.section .list-box .mt-0::after {
    background: none;
}
.section .list-box .teacher {
    font-size: 16px;
}
.madia-b {
    height: 120px;
}
.section .list-box .media {
    margin-bottom: 0;
    border-bottom: none;
}
.section .list-box .media-b-h a {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
}
.section .list-box .media-b-h {
    margin-bottom: 5px;
    line-height: 25px;
    height: 0;
}
.mask {
    position: relative;
}
.mask-span {
    position: absolute;
    bottom: 5px;
    top: 85%;
    background-color: rgba(0,0,0,.3);
    width: 100%;
    z-index: 2;

}
.section .list-box .lesson_join_num, .section .list-box .lesson-time {
    /* 导读讲堂视频上的文字内容 */
    padding-left: 140px;
    color: #333;
    font-size: 14px;
}
.section .list-box .lesson_join_num, .section .list-box a {
    text-decoration: none;
}
/*移动导读讲堂列表页index的css end*/
/*移动导读讲堂  category 的css位置 start*/
.tab-content > .active {
    display: flex;
}
.section .list-box .mt-0::after {
    background: none;
}
.section .list-box .teacher {
    font-size: 16px;
}
.madia-b {
    height: 120px;
}
.section .list-box .media {
    margin-bottom: 0;
    border-bottom: none;
}
.section .list-box .media-b-h a {
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
}
.section .list-box .media-b-h {
    margin-bottom: 5px;
    line-height: 25px;
    height: 0;
}
.mask {
    position: relative;
}
.mask-span {
    position: absolute;
    bottom: 5px;
    top: 85%;
    background-color: rgba(0,0,0,.3);
    width: 100%;
    z-index: 2;

}
.section .list-box .lesson_join_num, .section .list-box .lesson-time {
    /* 导读讲堂视频上的文字内容 */
    padding-left: 140px;
    color: #333;
    font-size: 14px;
}
.section .list-box .lesson_join_num, .section .list-box a {
    text-decoration: none;
}
/*移动导读讲堂  category 的css位置 end*/
@media screen and (max-width:1200px) {
    /* .detail .rgt-box {
        position: absolute;
        top: 219px;
        background: #fff;
        left: 50%;
        max-width: 324px;
        margin-left: 302px
    } */
    .section .list-box .lesson_join_num,
    .section .list-box .lesson-time {
        padding-left: 90px!important;
    }
}

@media screen and (max-width:1000px) {
    .section .list-box .lesson_join_num,
    .section .list-box .lesson-time {
        padding-left: 16px!important;
    }
}

@media screen and (max-width:900px) {
    .section .list-box .lesson_join_num,
    .section .list-box .lesson-time {
        padding-left: 19px!important;
    }
}

@media screen and (max-width:768px) {
    .section .list-box .lesson_join_num,
    .section .list-box .lesson-time {
        float: left;
        padding-left: 65px;
        color: #333;
        font-size: 12px;
    }
    .banner-box {
        display: none
    }
    .breadcrumb-box {
        display: none
    }
    .info-box .title-box {
        margin: 0 20px 20px 0
    }
    .info-box .title-box .title {
        padding-right: 0
    }
    .info-box .activity-box {
        margin: 0 15px 30px
    }
    .info-box .activity-box .a-title {
        font-size: 16px;
        margin-bottom: 18px
    }
    .info-box .activity-box .a-desc {
        height: auto;
        margin-bottom: 0;
        text-align: justify;
    }
    .section .nav-tabs {
        padding: 0 0 0 20px;
        margin-bottom: 20px!important;
        -ms-flex-flow: row nowrap;
        flex-flow: row nowrap;
        overflow-x: auto
    }
    .section .nav-tabs::-webkit-scrollbar {
        display: none
    }
    .section .nav-tabs .nav-item {
        -ms-flex-negative: 0;
        flex-shrink: 0
    }
    .section .tab-content {
        padding: 0 20px
    }
    .section .list-box .media {
        margin-bottom: 20px;
        /* margin-left: 0; */
        padding: 0 0 20px;
    }
    .section .list-box .media-video {
        max-width: 183px;
        max-height: 120px;
        margin-right: 0;
        margin-left: 15px
    }
    .section .list-box .media-body {
        padding-top: 13px;
        margin: 0;
    }
    .section .list-box .mt-0 {
        line-height: 22px;
        font-size: 14px;
        padding-right: 0;
        margin-bottom: 0
    }
    .section .list-box .mt-0::after {
        display: none
    }
    .section .list-box .teacher {
        padding-right: 0;
        font-size: 12px!important;
        margin-bottom: 23px
    }
    .section .list-box .lesson_info {
        padding-right: 0;
        font-size: 12px
    }
    .section .list-box .play_btn_box {
        display: none
    }
    .section .pagination {
        margin: 0 0 30px 0
    }
    .detail {
        margin-top: 0
    }
    .detail .lft-box {
        padding-right: 15px
    }
    .detail .title {
        line-height: 24px;
        font-size: 16px;
        margin-bottom: 20px
    }
    .detail .teacher {
        line-height: 28px;
        margin-bottom: 16px;
        font-size: 14px
    }
    .detail .desc {
        line-height: 28px;
        font-size: 14px;
        margin-bottom: 16px
    }
    .detail .rgt-box {
        padding-right: 15px;
        border-top: none
    }
    .detail .recommend-list {
        box-shadow: none
    }
    .detail .recommend-media .mr-3 {
        max-width: 130px;
        max-height: 90px;
    }
}