:root{--bg: #0b0a09;--panel: rgba(14, 13, 12, .94);--line: #3a3430;--fg: #f2f0eb;--mut: #a8a199;--acc: #ff5a1f;--mono: "IBM Plex Mono", ui-monospace, monospace;--disp: "Rajdhani", "IBM Plex Mono", sans-serif;--sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;background:var(--bg);color:var(--fg)}body{font-family:var(--sans);font-size:16px;line-height:1.6;overflow:hidden;-webkit-tap-highlight-color:transparent}#app{position:fixed;inset:0;overflow:hidden}.backdrop{position:absolute;inset:-40px;background:center / cover no-repeat;filter:blur(28px) brightness(.35)}.stage{position:absolute;left:0;top:0;transform-origin:0 0;opacity:0;transition:opacity .6s ease}#app.ready 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