:root{--site-brand:#143459;--site-accent:#1764b3;--site-ink:#243b53;--site-muted:#60778c;--site-surface:#fff;--site-background:#f5f8fc;--site-line:#dce5ed;--site-radius:12px;--site-font-sans:system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif}