Follow the requirements below

Follow the requirements below. User original request: /music 生成一段15秒的无歌词像素冒险游戏主界面背景音乐，轻快、有清晰循环感，不要人声 Xiaowei execution brief: 生成15秒轻快的无歌词像素冒险游戏主界面BGM，使用复古芯片音色并实现自然清晰的循环衔接，不含人声。 创作一段15秒、无歌词、无人声的像素冒险游戏主界面背景音乐。整体轻快、明亮、充满启程感，采用复古8-bit/chiptune音色，包含清晰旋律、轻盈琶音、简洁贝斯与克制的芯片鼓点。结构紧凑，开头迅速建立主题，结尾在和声、节拍和混响尾音上与开头自然无缝衔接，具有清晰循环感。不要人声、对白、吟唱或写实环境音。 Structured parameters: {"durationSeconds":15} Workspace creative context: {"schema":"studio-creative-context/1.0","summary":"","scene":"","themes":[],"visualStyle":[],"constraints":[],"avoid":[]} Workspace creative context: {"schema":"studio-creative-context/1.0","summary":"","scene":"","themes":[],"visualStyle":[],"constraints":[],"avoid":[]}.