.nss-help-center{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:start;-ms-flex-align:start;align-items:flex-start;gap:24px}.nss-help-center__index{position:sticky;top:16px;-webkit-box-flex:0;-ms-flex:0 0 300px;flex:0 0 300px;max-height:calc(100vh - 140px);overflow-y:auto;padding:16px;border-radius:8px;background:#fff}.nss-help-center__heading{margin-bottom:12px;font-size:16px;font-weight:600}.nss-help-center__content{-webkit-box-flex:1;-ms-flex:1;flex:1;min-width:0;max-width:860px;padding:20px 28px;border-radius:8px;background:#fff}.nss-help-center__notice{margin-bottom:16px}@media (max-width:768px){.nss-help-center{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.nss-help-center__index{position:static;-ms-flex-preferred-size:auto;flex-basis:auto;width:100%;max-height:none}.nss-help-center__content{width:100%;padding:16px}}