:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#171717;--muted:#686868;--soft-text:#9a9a9a;--line:#e8e8e8;--line-strong:#d7d7d7;--paper:#fff;--warm:#f7f5f0;--surface:#fff;--surface-soft:#fafafa;--accent:#6d5b42;--danger:#9b2f25;--prompt-zh:#fff4e7;--prompt-zh-line:#f0b36d;--prompt-en:#edf5ff;--prompt-en-line:#91b8ee;--shadow:0 18px 50px #00000014;--radius:14px;--control-h:42px;--gap-xs:6px;--gap-sm:10px;--gap-md:14px;--gap-lg:18px;--gap-xl:28px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;text-rendering:geometricprecision;margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft 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