html {
    height: 100%;
}

body {
    background: #EFF2FC;
    height: 100%;
    font-family: "PingFang";
    padding-left: 260px;
    padding-top: 50px;
}

.header {
    background: #3D8FFF;
    color: white;
    height: 50px;
    left: 0px;
    position: fixed;
    top: 0px;
    width: 100%;
    z-index: 10;
}

.header_line {
    line-height: 50px;
}

.header_line span {
    font-size: 20px;
    font-family: "PingFang";
    font-weight: 600;
}

.header_line_item{
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin-right: 30px;
}

.header_line_item:hover{
    color: white;
}

.leftbar {
    box-sizing: border-box;
    bottom: 0px;
    color: white;
    left: 0px;
    position: fixed;
    top: 50px;
    width: 260px;
    z-index: 10;
}

.leftbar_logo {
    background: #3D8FFF;
    border-bottom-left-radius: 50%;
    padding: 30px 0px;
    text-align: center;
}

.leftbar_logo img {
    border: 2px solid white;
    border-radius: 50%;
    height: 100px;
    vertical-align: middle;
}

.leftbar_cats{
    color: black;
    padding-top: 30px;
}

.leftbar_cats_line{
    color: black;
    display: block;
    font-size: 14px;
    padding: 0px 0px 10px;
    text-align: center;
}

.leftbar_cats_line p{
    padding-top: 5px;
}

.leftbar_cats_line:hover{
    text-decoration: none;
}

.leftbar_cats_box{
    display: inline-block;
    width: 50px;
}

.main_top {
    background: #3D8FFF;
    border-bottom-right-radius: 50%;
    height: 160px;
}

.main_content {
    background: white;
    border-radius: 10px;
    bottom: 30px;
    left: 16%;
    overflow-y: scroll;
    position: fixed;
    padding: 30px;
    right: 30px;
    top: 80px;
    z-index: 20;
}

.main_left {
    background: white;
    border-radius: 10px;
    bottom: 30px;
    left: 16%;
    position: fixed;
    padding: 30px;
    top: 80px;
    z-index: 20;
    width: 25%;
}

.main_left_title{
    font-size:18px;
    font-weight:600;
    padding-top:15px;
}

.main_left_list{
    border-radius: 10px;
    border: 1px solid #cdcdcd;
    font-size: 14px;
    margin-top: 10px;
    padding: 15px
}

.main_right {
    border-radius: 10px;
    bottom: 30px;
    left: 42.5%;
    overflow: hidden;
    position: fixed;
    right: 30px;
    top: 80px;
    z-index: 20;
}

.main_right_media p{
    font-size: 12px;
    padding-top: 10px;
}

.main_panel {
    background: white;
    border-radius: 10px;
}

.main_panel.mr20{
    margin-top: 20px;
}

.main_panel_header {
    border-bottom: 1px solid #F9F8FB;
    font-size: 16px;
    font-weight: 600;
    height: 40px;
    line-height: 40px;
    padding: 0px 20px;
}

.main_panel_body{
    padding: 20px 20px;
}

.main_right_title{
    font-size: 14px;
    padding: 10px 0px 20px;
}

.content_title{
    font-size: 18px;
    font-weight: 600;
}

.content_body{
    padding-top: 30px;
}

.class_name{
    display: flex;
}

.class_name_i{
    background: #3D8FFF;
    color: white;
    flex:1;
    font-size: 16px;
    font-weight: 600;
    padding: 15px 0px;
    text-align: center;
}

.class_list{
    margin-top: 10px;
}

.class_list_title{
    font-size: 18px;
    font-weight: 600;
}

.class_list_logs{
    padding: 10px 0px;
}

.class_list_logs_child{
    font-size: 15px;
}

.class_list_logs a{
    background: #3D8FFF;
    border-radius: 10px;
    color: white;
    display: inline-block;
    margin: 0px 10px 20px 0px;
    padding: 10px 30px;
}

.class_list_logs a:hover{
    text-decoration: none;
}