.n28-back{display:none}
@media(max-width:900px){
 :root[data-design] .n28-back{display:inline-flex;align-items:center;justify-content:center;flex:0 0 44px;min-width:44px;min-height:44px;width:44px;height:44px;padding:9px}
 :root[data-design] .topbar>.row{flex:1;min-width:0}
 :root[data-design] .topbar .path{min-width:0;max-width:100%}
 :root[data-design] .n15-menu-head{gap:10px}
 :root[data-design] .n15-menu-head h1{flex:1;min-width:0}
}