diff --git a/.github/workflows/cd.yaml b/.github/workflows/cd.yaml
index 2c71d363..f1fd8c37 100644
--- a/.github/workflows/cd.yaml
+++ b/.github/workflows/cd.yaml
@@ -55,10 +55,12 @@ jobs:
     runs-on: [self-hosted, harbor, k8s]
     timeout-minutes: 1
     steps:
-      # 2026-03-26: 清理暫存目錄，避免 set_output file conflict
+      # 2026-03-26: 清理暫存目錄，避免 file conflict (pages + temp)
       - name: "Clean Runner temp"
         run: |
+          RUNNER_ROOT=$(dirname "$(dirname "$RUNNER_TEMP")")
           rm -rf "$RUNNER_TEMP"/* 2>/dev/null || true
+          rm -rf "$RUNNER_ROOT/_diag/pages"/* 2>/dev/null || true
           rm -rf .claude/worktrees 2>/dev/null || true
 
       - name: "Check Required Secrets"
@@ -109,9 +111,11 @@ jobs:
       api: ${{ inputs.force_deploy == true && 'true' || steps.filter.outputs.api }}
       web: ${{ inputs.force_deploy == true && 'true' || steps.filter.outputs.web }}
     steps:
-      # 2026-03-26: 清理暫存目錄
+      # 2026-03-26: 清理暫存目錄 (temp + pages)
       - name: "Clean Runner temp"
-        run: rm -rf "$RUNNER_TEMP"/* .claude/worktrees 2>/dev/null || true
+        run: |
+          RUNNER_ROOT=$(dirname "$(dirname "$RUNNER_TEMP")")
+          rm -rf "$RUNNER_TEMP"/* "$RUNNER_ROOT/_diag/pages"/* .claude/worktrees 2>/dev/null || true
 
       - uses: actions/checkout@v4
         with:
@@ -145,9 +149,11 @@ jobs:
     outputs:
       image_tag: ${{ steps.tag.outputs.tag }}
     steps:
-      # 2026-03-26: 清理暫存目錄
+      # 2026-03-26: 清理暫存目錄 (temp + pages)
       - name: "Clean Runner temp"
-        run: rm -rf "$RUNNER_TEMP"/* .claude/worktrees 2>/dev/null || true
+        run: |
+          RUNNER_ROOT=$(dirname "$(dirname "$RUNNER_TEMP")")
+          rm -rf "$RUNNER_TEMP"/* "$RUNNER_ROOT/_diag/pages"/* .claude/worktrees 2>/dev/null || true
 
       - uses: actions/checkout@v4
 
@@ -181,9 +187,11 @@ jobs:
     outputs:
       image_tag: ${{ steps.tag.outputs.tag }}
     steps:
-      # 2026-03-26: 清理暫存目錄
+      # 2026-03-26: 清理暫存目錄 (temp + pages)
       - name: "Clean Runner temp"
-        run: rm -rf "$RUNNER_TEMP"/* .claude/worktrees 2>/dev/null || true
+        run: |
+          RUNNER_ROOT=$(dirname "$(dirname "$RUNNER_TEMP")")
+          rm -rf "$RUNNER_TEMP"/* "$RUNNER_ROOT/_diag/pages"/* .claude/worktrees 2>/dev/null || true
 
       - uses: actions/checkout@v4
 
@@ -224,9 +232,11 @@ jobs:
     if: always() && (needs.build-api.result == 'success' || needs.build-api.result == 'skipped') && (needs.build-web.result == 'success' || needs.build-web.result == 'skipped')
     environment: production
     steps:
-      # 2026-03-26: 清理暫存目錄
+      # 2026-03-26: 清理暫存目錄 (temp + pages)
       - name: "Clean Runner temp"
-        run: rm -rf "$RUNNER_TEMP"/* .claude/worktrees 2>/dev/null || true
+        run: |
+          RUNNER_ROOT=$(dirname "$(dirname "$RUNNER_TEMP")")
+          rm -rf "$RUNNER_TEMP"/* "$RUNNER_ROOT/_diag/pages"/* .claude/worktrees 2>/dev/null || true
 
       - uses: actions/checkout@v4
         with: