必须一致的 Explorer 结构 · 不是 Luau 代码
Workspace
├─ Crystals (Folder)
│  ├─ CrystalA (Part)
│  ├─ CrystalB (Part)
│  └─ CrystalC (Part)
└─ Terminal (Part)
   └─ ProximityPrompt
ServerScriptService
└─ IslandQuest (Script)
StarterPlayer > StarterPlayerScripts
└─ IslandHud (LocalScript)
