输出必须是 JSON，字段固定：
:first-child]:h-full [&:first-child]:w-full [&:first-child]:mb-0 [&:first-child]:rounded-[inherit] h-full w-full
，更多细节参见同城约会
So what does HotAudio do then? Based on everything I could observe, they implement a custom JavaScript-based decryption scheme. The audio is served in an encrypted format chunked via the MediaSource Extensions (MSE) API and then the player fetches, decrypts, and feeds each chunk to the browser’s audio engine in real time. It’s a reasonable-ish approach for a small platform. It stops casual right-clickers. It stops people opening the network tab and downloading the raw response file, only to discover it won’t play. For most users, that friction is sufficient.
在更新至 5.12 版本后，应用内新增的测速工具允许用户一键测试当前网络环境的下载、上传速率及延迟情况。
Step 3: cmdChargeCreditCard returned {