diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index ca7d67c..12eb343 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -29,6 +29,25 @@ jobs:
 
       - name: Build
         run: npm run build
+      
+      - name: 🔍 Debug - List Build Files
+        run: |
+          echo "======================="
+          echo "1. Root directory files:"
+          ls -la
+          
+          echo "======================="
+          echo "2. Checking .next directory:"
+          if [ -d ".next" ]; then
+             ls -la .next
+          else
+             echo "❌ Error: .next folder does not exist!"
+          fi
+
+          echo "======================="
+          echo "3. Deep check of .next (excluding node_modules):"
+          # 查找 .next 目录下 4 层深度的文件，但排除 node_modules 避免日志太长
+          find .next -maxdepth 4 -not -path '*/node_modules*'
 
       - name: Prepare standalone build
         run: |
diff --git a/Dockerfile b/Dockerfile
index 6dc972b..87fdc7c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,8 @@
-FROM node:22-alpine AS runner
+FROM node:22-bookworm-slim AS runner
 WORKDIR /app
 
 ENV NODE_ENV production
+ENV NEXT_PRIVATE_STANDALONE true
 
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs