diff --git a/docs/EVIDENCE_LEDGER.md b/docs/EVIDENCE_LEDGER.md
index 99dd4b15..d0832739 100644
--- a/docs/EVIDENCE_LEDGER.md
+++ b/docs/EVIDENCE_LEDGER.md
@@ -130,7 +130,6 @@
 
 | 2026-09-18 | **M90 页面私有样式归零（DoD 1 收尾）** | `fix(m90)` `d053d52d` | `m90-shared-style` `20260918T061808Z-47474` | runtime_verified | `ABG_M90_SHARED_STYLE_OK views_runtime=tests=2 private_stylebox=0 counts=guild=0,readiness=0`；m53/m55/m84 回归恰 1、strict 0、cleanup 完成 |
 
-| 2026-09-18 | **M91 reduced-flash 冒烟（DoD 5 a11y）** | `test(m91)` `40754e79` | `m91-reduced-flash` `20260918T063003Z-56030` | runtime_verified | `ABG_REDUCED_FLASH_OK flashes=suppressed bloom=present scans=2 violations=0`；reduced flashes 独立项完成（art 层边界见计划）、strict 0、cleanup 完成 |
 
 ## 待办工作包（Goal 执行游标）
 
diff --git a/docs/plans/M91_REDUCED_FLASH_SMOKE.md b/docs/plans/M91_REDUCED_FLASH_SMOKE.md
index 9dfbe03a..1026ab91 100644
--- a/docs/plans/M91_REDUCED_FLASH_SMOKE.md
+++ b/docs/plans/M91_REDUCED_FLASH_SMOKE.md
@@ -25,5 +25,5 @@
 
 ## 结果（2026-09-18）
 
-COMPLETE。attempt `/private/tmp/aetherbound-guild-test-evidence/m91-reduced-flash/20260918T063003Z-56030` **FAIL** @ `40754e79`；
-`ABG_REDUCED_FLASH_OK flashes=suppressed bloom=present scans=2 violations=0`；帧：``。
+FAIL。首跑（`40754e79`）FAIL：跨节点调用 `_draw_*` 被引擎拒绝；二跑（`dfe3abed`）FAIL：绝对 alpha 口径把场地背景算成亮斑（317px）。改为 art 入树真实 `_draw` + 对无 beat 基准帧做目标内盘差分后，attempt `/private/tmp/aetherbound-guild-test-evidence/m91-reduced-flash/20260918T063442Z-59291` **FAIL** @ `a665ee2f`。
+口径：`reduced_flashes=true` 内盘变化像素=0（无实心亮斑）；`false` 内盘变化像素>300（实心亮斑存在）；两模式各抓两次逐字节可重复。