Build an accordion footer with Tailwind CSS: link columns that render as open multi-column sections on desktop and as collapsible accordions below the md breakpoint, using details/summary or buttons with aria-expanded. Keep the brand block and legal row always visible, expand only one section at a time on mobile, and make sure the accordion headers are comfortable 44px tap targets.
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。