Build a maintenance window opt-in banner with Tailwind CSS: a focused card explaining that an upgrade needs a maintenance window, offering three or four time-slot chips in the visitor's timezone, a confirm button, and a 'use the default slot' link. After confirming, show the chosen slot with a change link. Keep the explanation to two lines — the decision is the point, not the engineering.
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。