fix(pitch-deck): USP cards overlap — increase container height to 520px

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

pitch-deck/components/slides/USPSlide.tsx

@@ -77,7 +77,7 @@ export default function USPSlide({ lang }: USPSlideProps) {
       </FadeInView>
 
       <FadeInView delay={0.2}>
-        <div className="relative max-w-6xl mx-auto" style={{ height: '440px' }}>
+        <div className="relative max-w-6xl mx-auto" style={{ height: '520px' }}>
 
           {/* CENTER: Large circle */}
           <div className="absolute left-1/2 top-1/2 -translate-x-1/2 -translate-y-1/2" style={{ width: '380px', height: '380px' }}>