.shell{max-width:1240px;margin:auto;padding:0 28px}.nav{position:sticky;top:0;z-index:10;border-bottom:1px solid rgba(0,0,0,.08);background:rgba(245,245,247,.88);backdrop-filter:blur(18px)}.nav .shell{display:flex;align-items:center;gap:22px;min-height:54px;overflow-x:auto;white-space:nowrap}