.course-directory{width:100%;box-sizing:border-box}.course-directory-item{width:100%;padding-top:12px;padding-bottom:4px;height:50px;font-size:12px;font-weight:600;cursor:pointer;border-bottom:1px solid #ebf1f6;margin-bottom:12px}.course-directory-item-top{display:flex;align-items:center;height:20px;line-height:20px}.course-directory-item-top-tag{width:44px}.course-directory-item-top-name{flex-grow:1}.course-directory-item-top-btn{width:84px;text-align:center;border-radius:4px;color:#fff;background-color:#409eff;border-color:#409eff;padding:2px;transition:all .3s;letter-spacing:2px}.course-directory-item-top-btn .em-icon{margin-right:2px;font-size:14px}.course-directory-item-top-btn:hover{background-color:#60aaf5;color:#ff0;transform:scale(1.1)}.course-directory-item-bottom{margin-top:6px}.course-directory-item.selected{color:red}.course-directory-item:first-child{padding-top:4px}.course-directory .el-tabs__header{margin-top:12px}.course-directory .el-tabs__content{padding:4px}.course-exam[data-v-e3cc2316]{width:100%;height:100%;padding:4px;box-sizing:border-box}.course-exam-item[data-v-e3cc2316]{width:100%;height:40px;line-height:40px;font-size:12px;border-bottom:1px solid #e7e7e7;display:flex}.course-exam-item-l[data-v-e3cc2316]{width:60px;font-weight:600}.course-exam-item-c[data-v-e3cc2316]{flex-grow:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.course-exam-item[data-v-e3cc2316] .el-tag{cursor:pointer}.course-info[data-v-41f082da]{padding:12px}.course{background:#fff}.course-content{position:relative;display:flex;flex-direction:column;width:100%;height:100%}.course-content-title{width:100%;height:50px;line-height:50px;text-align:center;font-size:18px;font-weight:600;border-bottom:1px solid #ebf1f6}.course-content-state{position:absolute;left:12px;top:10px}.course-content-video-bg{padding:20px}.course-content-collect{position:absolute;right:4px;top:12px}.course .em-flex_left,.course .em-flex_right{border:1px solid #ebf1f6;box-sizing:border-box}.course .em-flex_right{margin-left:4px}