diff --git a/web/playwright.config.ts b/web/playwright.config.ts
index b1752f2e..1bd3f4c9 100644
--- a/web/playwright.config.ts
+++ b/web/playwright.config.ts
@@ -39,9 +39,11 @@ export default defineConfig({
     headless: true,
     actionTimeout: 30_000,
     locale: 'zh-CN',
-    trace: runAcceptance ? 'on' : 'off',
-    screenshot: runAcceptance ? 'on' : 'off',
-    video: runAcceptance ? 'on' : 'off',
+    // retain-on-failure: long UI-03 squad waits write many chunks; concurrent cleans of
+    // outputDir caused ENOENT on in-flight .trace (false FAIL after green assertions).
+    trace: runAcceptance ? 'retain-on-failure' : 'off',
+    screenshot: runAcceptance ? 'only-on-failure' : 'off',
+    video: runAcceptance ? 'retain-on-failure' : 'off',
   },
   projects: [
     {