flowchart TD
  A[docs 目录] --> B[方案层]
  A --> C[实施层]
  A --> D[追溯与对标层]
  A --> E[参考层]
  A --> F[操作手册层]
  A --> G[截图资产层]

  B --> B1[implementation-plan.md]
  B1 --> B2[technical-roadmap.md]

  C --> C1[program-implementation-guide.md]
  C --> C2[native-task-hal-sync-implementation-steps.md]
  B2 --> C1
  C2 --> C1

  D --> D1[development-continuation.md]
  D --> D2[traceability-matrix.md]
  D --> D3[linuxcnc-parity-matrix.md]
  C1 --> D1
  D1 --> D2
  D3 --> D2

  E --> E1[linuxcnc-python-gui-reference.md]
  E --> E2[linuxcnc-gui-reference-gallery.md]
  E --> E3[gmoccapy-xyzab-reference.md]
  E1 --> B1
  E2 --> B2
  E3 --> D2
  E3 --> D3

  F --> F1[操作手册旧版 docx]
  F --> F2[操作手册新版 docx]
  G --> G1[manual-assets/*.png]
  G1 --> F1
  G1 --> F2

  D2 --> F2
  D3 --> F2