diff --git a/build.sh b/build.sh
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+++ b/build.sh
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+#!/bin/bash
+
+# Message Nest 构建脚本
+# 用于手动构建前后端应用
+
+set -e  # 遇到错误立即退出
+
+# 颜色定义
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# 默认配置
+BUILD_MODE="prod"  # 构建模式: prod 或 demo
+USE_NPM_CI=false   # 是否使用 npm ci
+
+# 打印带颜色的消息
+print_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+print_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+print_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# 打印分隔线
+print_separator() {
+    echo "=================================================="
+}
+
+# 检查命令是否存在
+check_command() {
+    if ! command -v $1 &> /dev/null; then
+        print_error "$1 未安装，请先安装 $1"
+        exit 1
+    fi
+}
+
+# 清理旧的构建文件
+clean_build() {
+    print_info "清理旧的构建文件..."
+    
+    # 清理前端构建文件
+    if [ -d "web/dist" ]; then
+        rm -rf web/dist
+        print_success "已清理前端构建文件"
+    fi
+    
+    # 清理后端构建文件
+    if [ -f "message-nest" ]; then
+        rm -f message-nest
+        print_success "已清理后端构建文件"
+    fi
+    
+    if [ -f "Message-Nest" ]; then
+        rm -f Message-Nest
+        print_success "已清理后端构建文件"
+    fi
+    
+    if [ -f "message-nest.exe" ]; then
+        rm -f message-nest.exe
+        print_success "已清理 Windows 构建文件"
+    fi
+    
+    # 清理多平台构建目录
+    if [ -d "build" ]; then
+        rm -rf build
+        print_success "已清理多平台构建目录"
+    fi
+}
+
+# 构建前端
+build_frontend() {
+    print_separator
+    print_info "开始构建前端..."
+    
+    # 检查 Node.js 和 npm
+    check_command "node"
+    check_command "npm"
+    
+    print_info "Node 版本: $(node --version)"
+    print_info "npm 版本: $(npm --version)"
+    
+    # 进入前端目录
+    cd web
+    
+    # 安装依赖
+    if [ "$USE_NPM_CI" = true ]; then
+        print_info "使用 npm ci 安装依赖（CI 模式）..."
+        npm ci
+    else
+        if [ ! -d "node_modules" ]; then
+            print_info "安装前端依赖..."
+            npm install
+        else
+            print_info "前端依赖已存在，跳过安装"
+        fi
+    fi
+    
+    # 构建前端
+    if [ "$BUILD_MODE" = "demo" ]; then
+        print_info "打包前端资源（Demo 模式）..."
+        npm run build:demo
+    else
+        print_info "打包前端资源（生产模式）..."
+        export NODE_ENV=prod
+        npm run build
+    fi
+    
+    # 返回根目录
+    cd ..
+    
+    # 检查构建结果
+    if [ -d "web/dist" ]; then
+        print_success "前端构建完成！"
+        print_info "构建文件位置: web/dist/"
+        
+        # 显示构建文件大小
+        DIST_SIZE=$(du -sh web/dist | cut -f1)
+        print_info "构建文件大小: ${DIST_SIZE}"
+    else
+        print_error "前端构建失败！"
+        exit 1
+    fi
+}
+
+# 构建后端
+build_backend() {
+    print_separator
+    print_info "开始构建后端..."
+    
+    # 检查 Go
+    check_command "go"
+    
+    print_info "Go 版本: $(go version)"
+    
+    # 下载依赖
+    print_info "整理 Go 依赖..."
+    go mod tidy
+    
+    # 构建后端（嵌入前端资源）
+    print_info "编译后端程序（嵌入前端资源）..."
+    
+    # 获取构建信息
+    BUILD_TIME=$(date -u '+%Y-%m-%d %H:%M:%S')
+    GIT_COMMIT=$(git rev-parse --short HEAD 2>/dev/null || echo "unknown")
+    VERSION=$(git describe --tags --always 2>/dev/null || echo "dev")
+    
+    print_info "版本: ${VERSION}"
+    print_info "提交: ${GIT_COMMIT}"
+    print_info "构建时间: ${BUILD_TIME}"
+    
+    # 构建参数
+    LDFLAGS="-s -w"
+    LDFLAGS="${LDFLAGS} -X 'main.Version=${VERSION}'"
+    LDFLAGS="${LDFLAGS} -X 'main.BuildTime=${BUILD_TIME}'"
+    LDFLAGS="${LDFLAGS} -X 'main.GitCommit=${GIT_COMMIT}'"
+    
+    # 根据操作系统构建
+    OS=$(uname -s)
+    case "$OS" in
+        Linux*)
+            print_info "检测到 Linux 系统，构建 Linux 版本..."
+            CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "${LDFLAGS}" -o Message-Nest main.go
+            ;;
+        Darwin*)
+            print_info "检测到 macOS 系统，构建 macOS 版本..."
+            go build -ldflags "${LDFLAGS}" -o Message-Nest main.go
+            ;;
+        MINGW*|MSYS*|CYGWIN*)
+            print_info "检测到 Windows 系统，构建 Windows 版本..."
+            go build -ldflags "${LDFLAGS}" -o message-nest.exe main.go
+            ;;
+        *)
+            print_warning "未知操作系统: $OS，使用默认构建..."
+            go build -ldflags "${LDFLAGS}" -o Message-Nest main.go
+            ;;
+    esac
+    
+    # 检查构建结果
+    if [ -f "Message-Nest" ] || [ -f "message-nest.exe" ]; then
+        print_success "后端构建完成！"
+        
+        # 显示文件信息
+        if [ -f "Message-Nest" ]; then
+            FILE_SIZE=$(du -h Message-Nest | cut -f1)
+            print_info "可执行文件: Message-Nest (${FILE_SIZE})"
+        fi
+        
+        if [ -f "message-nest.exe" ]; then
+            FILE_SIZE=$(du -h message-nest.exe | cut -f1)
+            print_info "可执行文件: message-nest.exe (${FILE_SIZE})"
+        fi
+    else
+        print_error "后端构建失败！"
+        exit 1
+    fi
+}
+
+# 构建多平台版本
+build_cross_platform() {
+    print_separator
+    print_info "开始构建多平台版本..."
+    
+    # 创建构建目录
+    BUILD_DIR="build"
+    mkdir -p ${BUILD_DIR}
+    
+    # 构建信息
+    BUILD_TIME=$(date -u '+%Y-%m-%d %H:%M:%S')
+    GIT_COMMIT=$(git rev-parse --short HEAD 2>/dev/null || echo "unknown")
+    VERSION=$(git describe --tags --always 2>/dev/null || echo "dev")
+    
+    LDFLAGS="-s -w"
+    LDFLAGS="${LDFLAGS} -X 'main.Version=${VERSION}'"
+    LDFLAGS="${LDFLAGS} -X 'main.BuildTime=${BUILD_TIME}'"
+    LDFLAGS="${LDFLAGS} -X 'main.GitCommit=${GIT_COMMIT}'"
+    
+    # 构建 Linux amd64
+    print_info "构建 Linux amd64..."
+    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "${LDFLAGS}" -o ${BUILD_DIR}/message-nest-linux-amd64 main.go
+    
+    # 构建 Linux arm64
+    print_info "构建 Linux arm64..."
+    CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags "${LDFLAGS}" -o ${BUILD_DIR}/message-nest-linux-arm64 main.go
+    
+    # 构建 macOS amd64
+    print_info "构建 macOS amd64..."
+    CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags "${LDFLAGS}" -o ${BUILD_DIR}/message-nest-darwin-amd64 main.go
+    
+    # 构建 macOS arm64 (Apple Silicon)
+    print_info "构建 macOS arm64..."
+    CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags "${LDFLAGS}" -o ${BUILD_DIR}/message-nest-darwin-arm64 main.go
+    
+    # 构建 Windows amd64
+    print_info "构建 Windows amd64..."
+    CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags "${LDFLAGS}" -o ${BUILD_DIR}/message-nest-windows-amd64.exe main.go
+    
+    print_success "多平台构建完成！"
+    print_info "构建文件位置: ${BUILD_DIR}/"
+    ls -lh ${BUILD_DIR}/
+}
+
+# 显示帮助信息
+show_help() {
+    echo "Message Nest 构建脚本"
+    echo ""
+    echo "用法: ./build.sh [选项]"
+    echo ""
+    echo "选项:"
+    echo "  -h, --help              显示帮助信息"
+    echo "  -c, --clean             清理构建文件"
+    echo "  -f, --frontend          仅构建前端"
+    echo "  -b, --backend           仅构建后端"
+    echo "  -a, --all               构建前后端（默认）"
+    echo "  -x, --cross-platform    构建多平台版本"
+    echo "  -d, --demo              使用 Demo 模式构建前端"
+    echo "  --ci                    使用 CI 模式（npm ci）"
+    echo ""
+    echo "示例:"
+    echo "  ./build.sh              # 构建前后端（生产模式）"
+    echo "  ./build.sh -d           # 构建前后端（Demo 模式）"
+    echo "  ./build.sh -f           # 仅构建前端"
+    echo "  ./build.sh -b           # 仅构建后端"
+    echo "  ./build.sh -c           # 清理构建文件"
+    echo "  ./build.sh -x           # 构建多平台版本"
+    echo "  ./build.sh --ci         # CI 模式构建"
+}
+
+# 主函数
+main() {
+    print_separator
+    print_info "Message Nest 构建脚本"
+    print_separator
+    
+    # 解析参数
+    BUILD_FRONTEND=false
+    BUILD_BACKEND=false
+    BUILD_CROSS=false
+    
+    while [[ $# -gt 0 ]]; do
+        case "$1" in
+            -h|--help)
+                show_help
+                exit 0
+                ;;
+            -c|--clean)
+                clean_build
+                print_success "清理完成！"
+                exit 0
+                ;;
+            -f|--frontend)
+                BUILD_FRONTEND=true
+                shift
+                ;;
+            -b|--backend)
+                BUILD_BACKEND=true
+                shift
+                ;;
+            -x|--cross-platform)
+                BUILD_CROSS=true
+                shift
+                ;;
+            -d|--demo)
+                BUILD_MODE="demo"
+                print_info "使用 Demo 模式"
+                shift
+                ;;
+            --ci)
+                USE_NPM_CI=true
+                print_info "使用 CI 模式"
+                shift
+                ;;
+            -a|--all)
+                BUILD_FRONTEND=true
+                BUILD_BACKEND=true
+                shift
+                ;;
+            *)
+                print_error "未知选项: $1"
+                show_help
+                exit 1
+                ;;
+        esac
+    done
+    
+    # 如果没有指定任何构建选项，默认构建全部
+    if [ "$BUILD_FRONTEND" = false ] && [ "$BUILD_BACKEND" = false ] && [ "$BUILD_CROSS" = false ]; then
+        BUILD_FRONTEND=true
+        BUILD_BACKEND=true
+    fi
+    
+    # 执行构建
+    if [ "$BUILD_FRONTEND" = true ]; then
+        build_frontend
+    fi
+    
+    if [ "$BUILD_CROSS" = true ]; then
+        build_cross_platform
+    elif [ "$BUILD_BACKEND" = true ]; then
+        build_backend
+    fi
+    
+    print_separator
+    print_success "构建完成！"
+    print_separator
+    
+    # 显示运行提示
+    if [ -f "Message-Nest" ]; then
+        echo ""
+        print_info "运行应用:"
+        echo "  ./Message-Nest"
+        echo ""
+    fi
+    
+    if [ -f "message-nest.exe" ]; then
+        echo ""
+        print_info "运行应用:"
+        echo "  message-nest.exe"
+        echo ""
+    fi
+}
+
+# 执行主函数
+main "$@"