:root{--paper:#faf6ee;--paper-raised:#fff;--paper-sunk:#f3ede1;--rule:#e2d9c7;--ink:#1a211c;--ink-muted:#4a5450;--brand:#13402b;--brand-deep:#0c2a1c;--brand-soft:#e8efe9;--copper:#c77941;--copper-ink:#8e4a28;--copper-soft:#f6eadf;--font-body:"Sarabun", system-ui, -apple-system, "Segoe UI", sans-serif;--font-display:"Noto Serif Thai", Georgia, "Times New Roman", serif;--font-brand:"EB Garamond", Georgia, serif;--step--1:clamp(.84rem, .81rem + .14vw, .92rem);--step-0:clamp(1rem, .96rem + .2vw, 1.09rem);--step-1:clamp(1.19rem, 1.12rem + .34vw, 1.4rem);--step-2:clamp(1.42rem, 1.3rem + .58vw, 1.8rem);--step-3:clamp(1.66rem, 1.48rem + .9vw, 2.25rem);--step-4:clamp(1.95rem, 1.66rem + 1.4vw, 2.85rem);--leading-body:1.85;--leading-tight:1.45;--space-2xs:.25rem;--space-xs:.5rem;--space-sm:.75rem;--space-md:1.25rem;--space-lg:2rem;--space-xl:3.25rem;--space-2xl:5rem;--measure:68ch;--container:72rem;--container-narrow:46rem;--radius:2px;--border:1px solid 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