.stairs{position:fixed;inset:0;z-index:100000;display:flex;pointer-events:none}.stairs-col{flex:1 1 0;height:100%;background:#000;will-change:height}.stairs-headline{position:fixed;inset:0;z-index:100001;display:flex;align-items:center;justify-content:center;pointer-events:none}.stairs-headline h1{margin:0;font-family:acumin-pro,Pretendard Variable,Pretendard,-apple-system,system-ui,sans-serif;font-weight:600;letter-spacing:-.02em;font-size:clamp(3rem,8vw,7rem);color:#fff;opacity:0}