:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--paper:#f6f1e7;--paper-deep:#ede5d6;--surface:#fcf9f3;--surface-raised:#fffdf8;--ink:#1b1a18;--ink-soft:#3f3c36;--muted:#6e685d;--line:#1b1a1824;--line-strong:#1b1a1847;--cinnabar:#b8371f;--cinnabar-bright:#ff4c00;--cinnabar-soft:#b8371f1a;--gold:#80601f;--gold-bright:#eacd76;--gold-soft:#b08a3e24;--jade:#4e7364;--jade-soft:#4e73641f;--azurite:#3e6475;--ink-950:#14161a;--ink-900:#1d2025;--moon:#efe9dc;--moon-soft:#d6ecf0;--on-dark:#f2ede2;--on-dark-muted:#a9a294;--line-dark:#f2ede229;--font-serif:"Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", "STSong", "SimSun", serif;--font-sans:"PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;--font-mono:"SFMono-Regular", "JetBrains Mono", "Menlo", ui-monospace, monospace;--step-hero:clamp(2.9rem, 7.4vw, 5.6rem);--step-h1:clamp(2.1rem, 4.6vw, 3.4rem);--step-h2:clamp(1.55rem, 2.7vw, 2.15rem);--step-h3:clamp(1.15rem, 1.6vw, 1.32rem);--step-body:1rem;--step-small:.86rem;--step-micro:.76rem;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-9:96px;--space-10:128px;--shell:1200px;--gutter:clamp(20px, 5vw, 64px);--radius:2px;--radius-lg:4px;--shadow-soft:0 18px 40px -28px #1b1a1873;--shadow-lift:0 28px 60px -34px #1b1a188c;--ease:cubic-bezier(.2, .7, .2, 1);--speed:.18s;--header-h:74px;--grain:radial-gradient(#1b1a1809 .6px, transparent .7px)}[data-theme=dark]{--lightningcss-light: 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