Build an app download call-to-action with Tailwind CSS: on desktop show a QR code beside the store badges with a 'scan to download' line; on mobile hide the QR and show the store buttons directly. Detect the platform to label the primary button correctly, add the app's rating and download count as a trust line, and keep the layout to a single centered row.
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。