.supportSectionWrap{background-color:#f5f5f7}.supportSectionWrap .support-item{background-color:#f5f5f7;position:sticky;top:140px}.supportSectionWrap .support-item:nth-child(2){top:170px}.supportSectionWrap .support-item:nth-child(3){top:200px}.supportSectionWrap .support-item:nth-child(4){top:230px}.usageSectionWrap .sec-title .sub-title{background-color:#fff}.supportSectionWrap .support-item{background-color:#fff;border:1px solid #d9d9d9;border-radius:15px;margin-bottom:30px}.supportSectionWrap .support-item:last-child{margin-bottom:0}.supportSectionWrap .support-item h4{margin-bottom:30px}.supportSectionWrap .support-item h4+p,.supportSectionWrap .support-item h4+p+p{margin-bottom:10px}.supportSectionWrap .support-item-right img{max-width:420px}