.mb-15 { margin-bottom: 15px; }
.mb-20 { margin-bottom: 20px; }
.mr-20 { margin-right: 20px; }
.left { float: left; }
.left-none { float: none !important; }
.w-per-50 { width: 50% !important; }
.w-per-70 { width: 70% !important; }
.w-per-80 { width: 80% !important; }
.w-per-100 { width: 100% !important; }
.h-44 { height: 44px; }
img {
    object-fit: cover;
}
.flex-center {
    display: flex;
    display: -webkit-flex;
    align-items: center;
}
.flex-center-between {
    display: flex;
    display: -webkit-flex;
    align-items: center;
    justify-content: space-between;
}

.ellipsis-1 {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.ellipsis-2 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
.ellipsis-3 {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}
.question-mark {
    width: 20px;
    height: 20px;
    text-align: center;
    line-height: 20px;
    color: #fff;
    background-color: #20C383;
    border-radius: 50%;
    font-size: 12px;
    display: inline-block;
}
.zhishiku-box .advertising {
    width: 100%;
}
.zhishiku-box .advertising>a {
    display: block;
}
.zhishiku-box .advertising>a>img {
    width: 100%;
}
.zhishiku-box .search {
    display: flex;
    justify-content: center;
    align-items: center;
}
.zhishiku-box .search>input {
    width: 600px;
    height: 48px;
    box-sizing: border-box;
    padding: 0 20px 0 40px;
    line-height: 48px;
    outline: none;
    border-radius: 4px 0 0 4px;
}
.zhishiku-box .search .search-icon {
    width: 26px;
    height: 26px;
    transform: translateX(140%);
}
.zhishiku-box .search>.submit-search {
    width: 100px;
    line-height: 48px;
    background: linear-gradient(90deg,rgba(21,201,148,1),rgba(33,193,127,1));
    box-shadow: 0px 5px 10px 0px rgb(33 193 127 / 30%);
    color: #fff;
    font-weight: bold;
    font-size: 18px;
    text-align: center;
    cursor: pointer;
    border-radius: 0 5px 5px 0;
}
.zhishiku-box .label-box {
    text-align: center;
}
.zhishiku-box .label-box>.label-list {
    display: inline-block;
    width: 46px;
    height: 46px;    text-align: center;
    line-height: 45px;
    font-size: 14px;
    color: #666666;
    cursor: pointer;    
    border-width: 1px;
    border-style: solid;
    border-color: #979797;
    /* margin-left: -1px; */
}
.zhishiku-box .label-box>.label-list:nth-child(n) {
    border-right: 0;
}
.zhishiku-box .label-box>.label-list:last-child {
    border-right: 1px solid #979797;
}
.zhishiku-box .label-box>.label-list.active {
    background: linear-gradient(90deg,rgba(21,201,148,1),rgba(33,193,127,1));
    color: #fff;
}
.zhishiku-box .label-box>.label-list:hover {
    background: linear-gradient(90deg,rgba(21,201,148,1),rgba(33,193,127,1));
    color: #fff;
}
.zhishiku-box .tab-list {
    float: left;
    width: 14%;
}
.tab-wrap {
    min-height: 600px;
}
.tab-wrap .search-title {
    font-size: 20px;
}
.tab-wrap .zero-box {
    padding-top: 80px;
    text-align: center;
}
.tab-wrap .zero-box .tip-text {
    margin-top: 20px;
    color: #6c7981;
}
.tab-wrap .tab-box {
    padding: 40px 10px 20px;
    background-color: #fff;
    /* box-shadow: 0px 1px 12px 0px rgb(24 73 148 / 15%); */
    border-radius: 10px;
}
.tab-box .tab-list>a {
    width: 100%;
    font-size: 14px;
    color: #777f84;
    letter-spacing: 0.86px;
    display: inline-block;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 0 5px;
}
.tab-box .tab-list>a:hover {
    color: #15C994;
}

/* 详情页 */
.zhishiku-box .detail-content .introduce {
    background-color: #fff;
    /* box-shadow: 0px 1px 12px 0px rgb(24 73 148 / 15%); */
    border-radius: 4px;
    padding: 0 20px;
}
.zhishiku-box .detail-content .introduce>h4 {
    height: 60px;
    line-height: 60px;
    font-size: 24px;
    color: #314350;
    margin: 0;
    border-bottom: 1px solid #DFE1E2;
}
.zhishiku-box .detail-content .introduce>div {
    padding: 20px 0;
}
.zhishiku-box .detail-content .introduce>div>p {
    margin: 0;
    font-size: 14px;
    color: #04253C;
    line-height: 20px;
}
.zhishiku-box .detail-content .detail-table {
    background-color: #fff;
    padding: 0 20px;
}
.zhishiku-box .detail-content .detail-table .header>span {
    color: #15C994;
}
.zhishiku-box .detail-content .detail-table .header .more-skip {
    float: right;
    font-size: 16px;
    color: #15C994;
}
.zhishiku-box .detail-content .recommend-box {
    padding-top: 20px;
}
.zhishiku-box .detail-content .recommend-list {
    float: left;
    margin-right: 10px;
}
.zhishiku-box .detail-content .recommend-list>a {
    background: #F7F7F7;
    padding: 0 16px;
    text-align: center;
    line-height: 36px;
    height: 30px;
    line-height: 30px;
    display: block;
    color: #666;
    font-size: 14px;
    border-radius: 4px;
    color: #4C4C4D;
    text-decoration: none;
}
.zhishiku-box .detail-content .recommend-list>a:hover {
    background: linear-gradient(90deg,rgba(21,201,148,1),rgba(33,193,127,1)) !important;
    color: #fff;
}
.zhishiku-box .detail-content .detail-table .header {
    font-size: 24px;
    height: 60px;
    line-height: 60px;
    color: #04253C;
    border-bottom: 1px solid #DFE1E2;
}
.detail-content .detail-table .correlation-box {
    padding: 20px 0;
}
.detail-table .correlation-list {
    width: 570px;
    /* float: left; */
    display: inline-block;
    vertical-align: top;
    margin-right: 20px;
}
.detail-table .correlation-list:nth-child(2n) {
    margin-right: 0;
}
.detail-table .correlation-list>.content-wrap {
    display: block;
    /* display: -webkit-flex;
    align-items: center; */
    /* margin: 0 auto; */
    /* width: 90%; */
    /* height: 116px; */
    background: #F9F9F9;
    border-radius: 4px;
    padding: 20px;
    box-sizing: border-box;
    text-decoration: none;
}
.detail-table .correlation-list>.content-wrap>.head {
    width: 46px;
    height: 46px;
    float: left;
    margin-right: 15px;
}
.detail-table .correlation-list>.content-wrap>.head>img {
    width: 100%;
    border-radius: 50%;
}
.detail-table .correlation-list>.content-wrap>.cover {
    width: 200px;
    height: 124px;
    float: left;
    margin-right: 15px;
}
.detail-table .zhishi-course-list>.content-wrap {
    text-decoration: none;
}
.detail-table .correlation-list>.content-wrap>.cover>img, .detail-table .zhishi-course-list>.content-wrap>.course-cover>img  {
    width: 100%;
    height: 100%;
    /* border-radius: 10px; */
}
.detail-table .zhishi-course-list>.content-wrap>.course-cover {
    width: 275px;
    height: 171px;
}
.detail-table .correlation-list>.content-wrap>.info {
    overflow: hidden;
}
.detail-table .correlation-list>.content-wrap>.info>.handle {
    display: flex;
    display: -webkit-flex;
    align-items: center;
    justify-content: space-between;
}
.detail-table .zhishi-course-list {
    margin-right: 15px;
    width: 275px;
    float: left;
}
.detail-table .zhishi-course-list:last-child {
    margin-right: 0;
}
.detail-table .title {
    font-size: 16px;
    line-height: 22px;
    color: #04253C;
}

.detail-table .teacher-box .teacher-head {
    width: 48px;
    height: 48px;
    margin-right: 12px;
}
.detail-table .teacher-box .teacher-head img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}
.detail-table .teacher-box .teacher-pro-info {
    width: 460px;
}
.teacher-pro-info .teacher-info {
    margin-bottom: 8px;
}
.teacher-pro-info .teacher-info .teacher-name {
    color: #04253C;
    font-size: 14px;
    margin-right: 8px;
}
.teacher-pro-info .teacher-info .teacher-iden {
    height: 20px;
    line-height: 20px;
    color: #fff;
    background: linear-gradient(153deg, #EFCF7F 0%, #E5AB69 100%);
    border-radius: 10px;
    font-size: 12px;
    padding: 0 8px;
    margin-right: 8px;
}
.teacher-pro-info .teacher-info .teacher-iden:last-child {
    margin-right: 0;
}
.teacher-pro-info .pro-info {
    font-size: 14px;
    color: #04253C;
}
.teacher-pro-info .pro-info .anwser-icon{
    color: #98A0A2;
}
.detail-table .intro-title {
    font-size: 12px;
    color: #7E838C;
}
.detail-table .look-over {
    color: #21C384;
    float: right;
}
.detail-table .course-t-info {

}
.detail-table .time, .detail-table .file-code, .detail-table .ask-reply {
    color: #7B8180;
    font-size: 12px;
}
.detail-table .money {
    display: inline-block;
    width: 36px;
    height: 18px;
    line-height: 15px;
    text-align: center;
    background-color: #E9F9F2;
    color: #15C790;
    border: 1px solid #BDEDD9;
    border-radius: 4px;
    font-size: 12px;
    margin-right: 6px;
}
.detail-table .ask-reply {
    display: inline-block;
    width: 74%;
    vertical-align: text-bottom;
}
.detail-table .download-btn {
    width: 96px;
    text-align: center;
    height: 30px;
    line-height: 30px;
    background: linear-gradient(153deg, #22C17F 0%, #22C17F 100%);
    color: #fff;
    cursor: pointer;
    border-radius: 15px;
}



@media screen and (max-width: 1366px) {
    .zhishiku-box .label-box>.label-list {
        width: 38px;
        height: 40px;
        line-height: 40px;
    }
    .detail-table .correlation-list {
        width: 470px;
    }
    .detail-table .ask-reply {
        width: 68%;
    }
    .detail-table .zhishi-course-list>.content-wrap>.course-cover {
        width: 100%;
        height: 140px;
    }
    .detail-table .zhishi-course-list {
        width: 225px;
    }
    .detail-table .teacher-box .teacher-pro-info {
        width: 370px;
    }
}