diff --git a/.gitignore b/.gitignore
index f28c0c2b..ffec154d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,7 +38,7 @@ Thumbs.db
 *.tmp
 .zcode/plans/
 
-# === 美术素材候选（2026-09-23 用户裁定不入库：大体积二进制素材；文本指引仍入库留痕）===
-design/art/candidates/**
-!design/art/candidates/**/*.md
-!design/art/candidates/**/
+# === 在途图像素材（2026-09-27 目录三层重构：artwork/=唯一图像工作区，图不入库；文本指引仍入库留痕）===
+artwork/**
+!artwork/**/*.md
+!artwork/**/
diff --git a/CLAUDE.md b/CLAUDE.md
index d6a75af8..f2820f37 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -29,8 +29,10 @@
 - `design/gdd/` — 现行设计文档树（根索引 `02-系统清单.md`；文档增删必须同步它）
 - `design/archive/gdd-2026-09-14/` — 旧版 GDD 归档（只读参考，不作事实引用）
 - `design/registry/` — 跨系统事实登记（术语规范名、已锁数值）
-- `design/art/` — 美术区三分：定稿规范 md（圣经/清单/提示词卡）｜`candidates/` 待审候选素材每批一个子目录（图不入 git）｜`references/` 参考池；评估/调研 md 一律 `design/research/`
-- `production/` — 过程产物区：stage、session-state、roadmap、gate-checks、qa、mockups（渲染/截图等当前批次图像证据，收口归档 `archive/`）、执行工单；判据=给设计决策看的进 design，生产过程跑出来的进 production
+- `design/art/` — 美术**纯文档**：定稿规范 md（圣经/清单/提示词卡）+ `references/` 参考池；评估/调研 md 一律 `design/research/`；**不放任何图片**
+- `artwork/` — **在途图像素材唯一工作区**（2026-09-27 用户三层裁定：文档归文档/在途图归一处/终稿归游戏）：生图候选批次（每批一目录+每资产一目录+vN 命名）、像素稿、样张渲染、实机截图全在这里；图不入 git（md 指引例外）；收口归档 `archive/`
+- `production/` — 过程产物区：stage、session-state、roadmap、gate-checks、qa、执行工单；**不放图片**
+- `game/assets/art/` — 已验收终稿（入包被游戏加载）
 - `game/` — 游戏工程本体（垂直切片转正 2026-09-24 结构批；概念 demo 已删，验证报告留档 `docs/prototype-report-minesweeper-battle-concept.md`）
 - `docs/` — 规范与参考文档（权威清单见下方导航）
 
diff --git a/production/mockups/sample-batch-v1-2026-09-26.png b/artwork/mockups/sample-batch-v1-2026-09-26.png
similarity index 100%
rename from production/mockups/sample-batch-v1-2026-09-26.png
rename to artwork/mockups/sample-batch-v1-2026-09-26.png
diff --git a/design/art/candidates/ui-reuse-2026-09-23/0-审阅指引.md b/artwork/ui-reuse-2026-09-23/0-审阅指引.md
similarity index 100%
rename from design/art/candidates/ui-reuse-2026-09-23/0-审阅指引.md
rename to artwork/ui-reuse-2026-09-23/0-审阅指引.md
diff --git a/tools/pixelize_candidates.py b/tools/pixelize_candidates.py
index 0244cd2b..ec1fdcf7 100644
--- a/tools/pixelize_candidates.py
+++ b/tools/pixelize_candidates.py
@@ -359,4 +359,4 @@ def main(root):
         print("总览 -> 0-像素化预览.png")
 
 if __name__ == "__main__":
-    main(sys.argv[1] if len(sys.argv) > 1 else "design/art/candidates/remote-gen-2026-09-26")
+    main(sys.argv[1] if len(sys.argv) > 1 else "artwork/remote-gen-2026-09-26")