:root{--bg:#ffffff;--bg-soft:#f7f8fa;--bg-sunken:#f0f2f5;--surface:#ffffff;--border:#e4e7ec;--border-strong:#d0d5dd;--text:#1a2233;--text-soft:#4b5567;--text-faint:#8b93a3;--accent:#1f6feb;--accent-soft:#e9f1fe;--code-bg:#f6f8fa;--code-border:#e4e7ec;--shadow:0 1px 2px rgba(16,24,40,0.05),0 1px 3px rgba(16,24,40,0.08);--shadow-lg:0 12px 32px rgba(16,24,40,0.12);--sidebar-w:280px;--toc-w:220px;--topbar-h:60px;--radius:10px;--hl-kw:#a626a4;--hl-str:#50a14f;--hl-num:#b76b01;--hl-fn:#4078f2;--hl-comment:#a0a1a7;--hl-attr:#986801;--hl-punc:#383a42}:root[data-theme=dark]{--bg:#0d1117;--bg-soft:#12161f;--bg-sunken:#0a0d13;--surface:#151a23;--border:#232a36;--border-strong:#313a49;--text:#e6e9f0;--text-soft:#a7b0c0;--text-faint:#6b7686;--accent:#5b9bff;--accent-soft:#12233d;--code-bg:#0f141c;--code-border:#232a36;--shadow:0 1px 2px rgba(0,0,0,0.3);--shadow-lg:0 16px 40px 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