:root{--bg-primary:#fafafa;--bg-secondary:#f4f4f5;--bg-surface:#ffffff;--bg-elevated:#ffffff;--bg-overlay:rgba(255,255,255,0.75);--text-primary:#242424;--text-secondary:#6b6b6b;--text-tertiary:#9b9b9b;--text-inverse:#fafafa;--brand-primary:#1a8917;--brand-secondary:#15803d;--brand-accent:#4ade80;--brand-subtle:#f2f2f2;--border-default:#e6e6e6;--border-strong:#d1d5db;--border-accent:#1a8917;--blockquote-bg:transparent;--code-bg:#1e1e2e;--code-text:#cdd6f4;--code-border:#313244;--toc-bg:#f4f4f5;--toc-active-color:#16a34a;--toc-hover-bg:#e4e4e7;--transition-fast:150ms ease;--transition-normal:250ms ease;--font-ui:var(--font-inter),var(--font-noto-sans-tc),system-ui,sans-serif;--font-prose:var(--font-noto-serif-tc),"Georgia",serif;--font-mono:"JetBrains Mono","Fira Code",ui-monospace,monospace;--prose-max-width:72ch;--prose-line-height:1.85;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 12px rgba(0,0,0,0.08);--shadow-lg:0 12px 32px rgba(0,0,0,0.12)}.dark{--bg-primary:#1a1a1a;--bg-secondary:#242424;--bg-surface:#212121;--bg-elevated:#2a2a2a;--bg-overlay:rgba(26,26,26,0.95);--text-primary:#e8e8e8;--text-secondary:#a8a8a8;--text-tertiary:#6a6a6a;--text-inverse:#18181b;--brand-primary:#4caf50;--brand-secondary:#22c55e;--brand-accent:#86efac;--brand-subtle:#2a2a2a;--border-default:#2e2e2e;--border-strong:#3f3f46;--border-accent:#4caf50;--blockquote-bg:#1e2a1e;--code-bg:#13131f;--code-text:#cdd6f4;--code-border:#1e1e2e;--toc-bg:#18181b;--toc-active-color:#4ade80;--toc-hover-bg:#27272a;--shadow-sm:0 1px 2px rgba(0,0,0,0.25);--shadow-md:0 4px 12px rgba(0,0,0,0.4);--shadow-lg:0 12px 32px rgba(0,0,0,0.55)}*,:after,:before{box-sizing:border-box;padding:0;margin:0}html{color-scheme:light;scroll-behavior:smooth}html.dark{color-scheme:dark}body,html{max-width:100vw;overflow-x:hidden}body{font-family:var(--font-ui);background-color:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-normal),color var(--transition-normal)}a{color:inherit;text-decoration:none}img,video{max-width:100%;height:auto;display:block}