#ch-particles{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:0;display:block}#ch-grid{position:fixed;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(rgba(229,0,10,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(229,0,10,.035) 1px,transparent 1px);background-size:80px 80px;mask-image:radial-gradient(ellipse 90% 90% at 50% 50%,black 20%,transparent 80%);animation:chGridShift 24s linear infinite}