:root{--paper:#eef1f1;--surface:#fbfcfc;--ink:#121a21;--muted:#55616b;--rule:#cfd7db;--link:#1d6f86;--accent:#5c707b;--accent-ink:#3b4c55;--warn-ink:#8a5a00;--sig:#06778a;--sig-ink:#fff;--sig-soft:#06778a17;--serif:"Literata", Georgia, "Times New Roman", "PingFang SC", "Noto Serif CJK SC", "Songti SC", serif;--sans:"Onest", system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;--mono:"IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, "PingFang SC", "Microsoft YaHei", monospace;--gutter:clamp(16px, 4vw, 40px);color-scheme:light}@media 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