.class_content>ol>li .study_lsit_course{margin-bottom:20px}.class_content>ol>li .study_lsit_course>p{padding-left:12px;box-sizing:border-box;border-left:6px solid #ff6f1d;cursor:pointer;display:flex;align-items:center;justify-content:space-between}.class_content>ol>li .study_lsit_course>p>span{font-size:18px;font-weight:400;color:#000}.class_content>ol>li .study_lsit_course>p>font{display:flex;align-items:center;font-size:14px;color:#666}.class_content>ol>li .study_lsit_course>p>font>i{margin-left:5px}.class_content>ol>li .study_lsit_course .cours_catalog_list{margin:20px 0}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li{background:#fafafa}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li:hover{cursor:pointer}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li .list_parent_box{display:flex;justify-content:space-between;padding:10px;box-sizing:border-box}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li .list_parent_box .list_parent_title{font-size:16px;font-weight:400;color:#666;display:flex}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li .list_parent_box .list_parent_title>p{margin-left:35px;width:700px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul{transition:all .2s}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box{display:flex;justify-content:space-between;padding:10px 5px 10px 15px;background:#fff}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box:hover{cursor:pointer;background:#fef8f4}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box .child_left{display:flex;align-items:center}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box .child_left>font{font-size:16px;font-weight:400;color:#999;margin-right:30px}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box .child_left>span{font-size:12px;font-weight:400;color:#ff701d;border:1px solid #ff701d;padding:1px 5px;margin-right:10px}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box .child_left>p{width:500px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:16px;font-weight:400;color:#333}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box .child_right .time_box{font-size:14px;font-weight:400;color:#999;display:flex;align-items:center}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box .child_right .time_box>i{margin-right:5px}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .child_content_box .child_right .right_live_box .el-button{color:#ff701d}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .playBack_box{padding:0 20px}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .playBack_box .play_back_list_box>p{margin-top:15px;color:#333;font-size:14px;cursor:pointer;transition:all .2s}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .playBack_box .play_back_list_box>p:hover{color:#ff701d}.class_content>ol>li .study_lsit_course .cours_catalog_list .catalog_list_box>ol>li>ul>li .playBack_box .play_back_empty{color:#ccc;height:50px;display:flex;align-items:center;justify-content:center}.class_content>ol>li .study_lsit_exam{margin-bottom:20px}.class_content>ol>li .study_lsit_exam>p{padding-left:12px;box-sizing:border-box;font-size:18px;border-left:6px solid #ff6f1d;font-weight:400;color:#000;cursor:pointer}