diff --git a/src/Dockerfile b/src/Dockerfile
index 3f2feb4..3abcaca 100644
--- a/src/Dockerfile
+++ b/src/Dockerfile
@@ -23,44 +23,8 @@ RUN dotnet build HtmlToPdfService.sln -c Release --no-restore
 # 发布
 RUN dotnet publish HtmlToPdfService.Api/HtmlToPdfService.Api.csproj -c Release -o /app/publish --no-build
 
-# 运行时阶段
-FROM 192.168.195.25:19900/library/dotnet/aspnet:9.0 AS runtime
-
-# 安装 Chromium 依赖
-RUN apt-get update && apt-get install -y \
-    # Chromium 依赖
-    libnss3 \
-    libnspr4 \
-    libatk1.0-0 \
-    libatk-bridge2.0-0 \
-    libcups2 \
-    libdrm2 \
-    libdbus-1-3 \
-    libxkbcommon0 \
-    libx11-6 \
-    libxcomposite1 \
-    libxdamage1 \
-    libxext6 \
-    libxfixes3 \
-    libxrandr2 \
-    libgbm1 \
-    libpango-1.0-0 \
-    libcairo2 \
-    libasound2 \
-    libatspi2.0-0 \
-    # 字体支持
-    fonts-liberation \
-    fonts-noto-cjk \
-    fonts-noto-cjk-extra \
-    fonts-noto-color-emoji \
-    fonts-dejavu-core \
-    fonts-freefont-ttf \
-    fontconfig \
-    # 工具
-    wget \
-    ca-certificates \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+# 运行时阶段（使用预装了 Chromium 依赖和字体的基础镜像）
+FROM 192.168.195.25:19900/htmltopdf/base:9.0 AS runtime
 
 # 创建应用目录
 WORKDIR /app
diff --git a/src/Dockerfile.base b/src/Dockerfile.base
new file mode 100644
index 0000000..d1fec3b
--- /dev/null
+++ b/src/Dockerfile.base
@@ -0,0 +1,43 @@
+# 基础运行时镜像：预装 Chromium 依赖和 CJK 字体
+# 构建一次，推送到 Harbor，后续 CI 直接复用
+#
+# 构建命令（在外网机器上执行）：
+#   docker build -f Dockerfile.base -t 192.168.195.25:19900/htmltopdf/base:9.0 .
+#   docker push 192.168.195.25:19900/htmltopdf/base:9.0
+
+FROM 192.168.195.25:19900/library/dotnet/aspnet:9.0
+
+RUN apt-get update && apt-get install -y \
+    # Chromium 依赖
+    libnss3 \
+    libnspr4 \
+    libatk1.0-0 \
+    libatk-bridge2.0-0 \
+    libcups2 \
+    libdrm2 \
+    libdbus-1-3 \
+    libxkbcommon0 \
+    libx11-6 \
+    libxcomposite1 \
+    libxdamage1 \
+    libxext6 \
+    libxfixes3 \
+    libxrandr2 \
+    libgbm1 \
+    libpango-1.0-0 \
+    libcairo2 \
+    libasound2 \
+    libatspi2.0-0 \
+    # 字体支持
+    fonts-liberation \
+    fonts-noto-cjk \
+    fonts-noto-cjk-extra \
+    fonts-noto-color-emoji \
+    fonts-dejavu-core \
+    fonts-freefont-ttf \
+    fontconfig \
+    # 工具
+    wget \
+    ca-certificates \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*