Build a sticky-visual walkthrough with Tailwind CSS: a two-column layout where the left column holds a sticky product screenshot or diagram and the right column scrolls through three or four numbered steps, each with a heading and short paragraph. As each step enters the viewport, highlight it and swap the visual on the left to the matching state using an intersection observer.
提示词保持英文原文——直接粘贴进 Claude、Cursor、v0 或任何 AI 编程工具即可使用。