:root{--bg:#070a10;--ink:#e9edf2;--muted:#747f90;--line:rgba(158,180,206,.16);--accent:#9df6e8;--accent-rgb:157,246,232;--mono:'SFMono-Regular',Consolas,'Liberation Mono',monospace;--sans:Inter,'Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:var(--sans)}body{min-height:660px;height:100svh;overflow:hidden}button,a,input,select{-webkit-tap-highlight-color:transparent}button,select{font:inherit;color:inherit}button{cursor:pointer;background:none;border:0}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:5px}button:disabled{opacity:.45;cursor:wait}[hidden]{display:none!important}#scene{position:fixed;inset:0;touch-action:none;z-index:0}#scene 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