.progress{position:fixed;z-index:60;left:0;top:0;height:3px;width:0;background:linear-gradient(90deg,#0a84ff,#7d5cff)}.nav{position:sticky;top:0;z-index:40;background:rgba(245,245,247,.86);backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid rgba(0,0,0,.08)}