A split hero for an AI research product: eyebrow, heading, description and a button on the left, and one borderless stage of fixed height on the right. The stage carries a live ink drawing that follows the theme and fades into the page, with a frosted glass prompt composer floating on it. The composer is a working mention field where typing @ cites a source, with a hint and a submit button in a row of fixed height, so the panel never changes size.