一分多钟看完：导入飞行 CSV、生成全球足迹、选中航线让飞机沿高度剖面飞行、行程回放， 以及按评分排序的机场搜索。全程由浏览器渲染，没有服务器，也没有上传。
A minute of the real app: importing a CSV, lighting up the globe, the aircraft riding its altitude profile, the trip replay, and the ranked airport search. Rendered entirely in the browser — no server, nothing uploaded.