style(storybook): unify page hierarchy and compact layouts

src/foundation/typography.stories.tsx

@@ -48,7 +48,7 @@ function TypographyReferencePage() {
       <p className="hm-typo-family"><span>Noto Sans KR → 맑은 고딕 → 시스템 sans-serif</span><code className="hm-foundation-note">--hm-font-family-base: {values["--hm-font-family-base"]}</code></p>
     </ReferenceSection>
     <ReferenceSection title="Font Weight">
-      <div className="hm-typo-weights">{weights.map(({ property, label }) => <article className="hm-foundation-card hm-typo-weight" key={property}>
+      <div className="hm-typo-weights">{weights.map(({ property, label }) => <article className="hm-typo-weight" key={property}>
         <p className="hm-typo-weight-meta"><strong>{label}</strong> <span className="hm-foundation-note">{values[property]}</span></p>
         <p className="hm-typo-weight-preview" style={{ fontWeight: `var(${property})` }}>한맥 Hanmac 0123</p>
         <code className="hm-foundation-note">{property}</code>