/* OIBC v3: local/system font selection only. No font-file downloads or CDN.
   Typography scale follows LST v19 (18px body/navigation; 17px mobile body). */
:root { --font-ui: Inter, Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif; }