.help_body {
    margin-bottom: 150px;
    border-top: #f2f3f5 1px solid;
}
.help_body .help_container {
    display: table;
    padding-top: 20px;
}

.help_body .help_container .tab {
    display: table-cell;
    background-color: #f8fafc;
    width: 180px;
    min-width: 180px;
}

.help_body .help_container .tab .item .menu {
    font-size: 16px;
    color: #585858;
    padding-left: 32px;
    height: 42px;
    line-height: 42px;
    cursor: pointer;
}

.help_body .help_container .tab .item.selected .menu {
    color: #f58220;
    border-left: #f58220 2px solid;
}

.help_body .help_container .tab .item .sub_menu {
    font-size: 14px;
    color: #9c9da0;
    padding-left: 50px;
    height: 30px;
    line-height: 30px;
    display: none;
    cursor: pointer;
}

.help_body .help_container .tab .item .sub_menu.selected {
    color: #333333;
}

.help_body .help_container .tab .item.selected .sub_menu {
    display: block;
}

.help_body .help_container .list {
    padding-left: 50px;
    display: none;
}

.help_body .help_container .list.selected {
    display: table-cell;
}

.help_body .help_container .list .title {
    font-size: 24px;
    color: #585858;
    box-sizing: border-box;
    padding-bottom: 20px;
    border-bottom: #f58220 1px solid;
}

.help_body .help_container .list .item_box {
    padding-left: 20px;
}

.help_body .help_container .list .item {
    color: #9c9da0;
    font-size: 10px;
    margin-top: 20px;
}

.help_body .help_container .list .item .link {
    font-size: 14px;
    color: #0a5ecc;
}

.help_body .content {
    overflow-x: auto;
    margin-top: 30px;
    color: #333333;
}

.help_body .content table {
    border-collapse: collapse;
}