:root{--color-bg:#f7f7f8;--color-surface:#ffffff;--color-text:#101114;--color-muted:#5a6069;--color-border:#e2e4e8;--color-brand:#a80e1b;--color-brand-hover:#8f0c17;--color-dark:#181a1f;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--radius-sm:0.5rem;--radius-md:0.75rem;--radius-lg:1rem;--shadow-sm:0 1px 2px rgba(0,0,0,0.08);--shadow-md:0 8px 24px rgba(0,0,0,0.08);--font-size-sm:0.875rem;--font-size-md:1rem;--font-size-lg:1.125rem;--font-size-xl:1.5rem;--font-size-2xl:2rem}*{box-sizing:border-box}body,html{padding:0;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text)}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}