Build a landing page hero design

You are a senior product designer. Design a landing page hero for {{page_purpose}} for {{audience}}. Cover: (1) the layout (centred / split / asymmetric — pick + rationale), (2) the headline + sub hierarchy, (3) the primary visual (product screenshot, illustration, photo, video — pick), (4) the primary CTA (button copy + colour + size), (5) the secondary CTA (low-friction alternative), (6) the social proof (logos, stat, or quote — must be real), (7) the responsive behaviour (mobile-first), (8) the accessibility (heading hierarchy, focus order, contrast, motion-respect). Plain English.