diff --git a/Dockerfile b/Dockerfile
index 1b36f96..2415d24 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,39 +1,52 @@
-# PHP-FPM镜像
-FROM webdevops/php:8.2-fpm
+# 使用官方镜像并配置国内加速
+FROM php:8.2-fpm
 
-# 使用阿里云镜像源
-RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list \
-    && sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list
+# 配置阿里云镜像源
+RUN set -eux; \
+    # 系统源更换
+    sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list; \
+    sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list; \
+    # 安装基础工具
+    apt-get update && apt-get install -y --no-install-recommends \
+        git \
+        zip \
+        unzip \
+        libzip-dev \
+        libpng-dev \
+        libonig-dev \
+        libxml2-dev; \
+    # 批量安装核心扩展（移除非常用扩展）
+    docker-php-ext-configure zip; \
+    docker-php-ext-install -j$(nproc) \
+        pdo_mysql \
+        mbstring \
+        bcmath \
+        gd \
+        zip; \
+    # 清理缓存
+    apt-get clean; \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*;
 
-# 安装依赖时添加--no-install-recommends减少不必要的包
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    git \
-    zip \
-    unzip \
-    libzip-dev \
-    libpng-dev \
-    libonig-dev \
-    libxml2-dev \
-    # 合并扩展安装命令
-    && docker-php-ext-install -j$(nproc) pdo_mysql mbstring exif pcntl bcmath gd sockets zip \
-    # 清理缓存减少镜像体积
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
-
-# 安装Composer
+# 配置Composer国内镜像
 COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+RUN composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/
 
 WORKDIR /var/www
 
+# 先复制依赖文件利用缓存
+COPY composer.json composer.lock ./
+
+# 安装生产依赖（不安装dev依赖）
+RUN composer install --no-dev --optimize-autoloader --no-scripts
+
+# 复制项目文件
 COPY . .
 
-RUN composer install --no-dev --optimize-autoloader
+# 设置存储目录权限
+RUN chown -R www-data:www-data storage
+RUN chmod -R 775 storage
 
-# 设置权限
-RUN chown -R www-data:www-data /var/www/storage
-RUN chmod -R 775 /var/www/storage
-
-# Nginx配置
+# 多阶段构建Nginx
 FROM nginx:alpine
 COPY --from=0 /var/www /var/www
 COPY .docker/nginx.conf /etc/nginx/conf.d/default.conf