:root {
 --yusen-text:#202a32;--yusen-text-muted:#53616d;--yusen-bg:#fff;--yusen-bg-soft:#f2f4f5;--yusen-border:#cbd2d8;--yusen-accent:#075aa6;--yusen-accent-hover:#03447f;
 --yusen-inverse:#fff;--yusen-grid:#dce3e7;--yusen-roll:#677783;--yusen-roll-top:#9facb6;--yusen-core:#26323a;--yusen-focus:#075aa6;--yusen-success:#215d37;--yusen-error:#9f2525;
 --space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--space-9:6rem;
 --container:1280px;--reading:760px;--reading-wide:960px;--section-space:clamp(3rem,7vw,6rem);--grid-gap:1.5rem;--header-height:88px;--radius:3px;
 --font-sans:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}