diff --git a/sc-lktx-backend/internal/pkg/database/init_data.go b/sc-lktx-backend/internal/pkg/database/init_data.go
index 8f99f7d..1804f06 100644
--- a/sc-lktx-backend/internal/pkg/database/init_data.go
+++ b/sc-lktx-backend/internal/pkg/database/init_data.go
@@ -1,15 +1,157 @@
+// 启动时初始化系统默认数据（幂等操作）
 package database
 
 import (
+	"crypto/sha256"
+	"fmt"
 	"log"
 
 	"com.sclktx/m/v2/internal/common/model"
+	"com.sclktx/m/v2/internal/pkg/config"
+
 	"gorm.io/gorm"
 )
 
-// InitData 初始化基础数据
-func InitData(db *gorm.DB) {
+// InitData 初始化系统默认数据
+// 角色直接在 User.Role 字段上存储字符串（visitor / employee / guard）
+func InitData(db *gorm.DB, systemConfig *config.SystemConfig) error {
+	// 1. 初始化默认管理员账号（admin / admin123）
+	var adminCount int64
+	db.Model(&model.AdminUser{}).Count(&adminCount)
+	if adminCount == 0 {
+		password := fmt.Sprintf("%x", sha256.Sum256([]byte("admin123")))
+		db.Create(&model.AdminUser{
+			Account:  "admin",
+			Password: password,
+			Name:     "超级管理员",
+			IsSuper:  true,
+			Status:   1,
+		})
+		log.Println("Default admin created: admin / admin123")
+	}
+
+	// 1.5 初始化默认用户（ID=1，用于 MockLogin 调试）
+	var userCount int64
+	db.Model(&model.User{}).Where("id = 1").Count(&userCount)
+	if userCount == 0 {
+		db.Create(&[]model.User{
+			{Openid: "oKdc53TZfIexhCWqUWg-a5i_9lQk", Nickname: "小羊班尼特福迪", RealName: "黄金", Phone: "18780334870", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			{Openid: "oKdc53SDUoKkC62FKbVc4bkDIe8s", Nickname: "Suneast", RealName: "蔡旭东", Phone: "17385767631", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			{Openid: "oKdc53d1WRqQfH19FVuSYxueRFKk", Nickname: "马陈龙", RealName: "马陈龙", Phone: "15228311770", AvatarURL: "http://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3lcMUxibpZvwT2Q4IWa4vxEpDelHCcCcg9hUfkVoFyjibp7T5wUpPRkyz7s5QXqNDI6UWzjSib80t24kYxz1nOrTgXxLOca58D9HXo/0?from=appmsg", Role: "employee", Status: 1},
+			{Openid: "oKdc53d8D8WFdYa1HvjBfd-DYNN4", Nickname: "Lou", RealName: "邓金路", Phone: "18512811976", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			{Openid: "oKdc53QzvbQBxTjHqa1vLvXzmkRA", Nickname: "访客", RealName: "访客", Phone: "15111111111", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			// {Openid: "oKdc53UBOpgvpu087O803XIMU7zc", Nickname: "高沣", RealName: "高沣", Phone: "15982004934", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			// {Openid: "oKdc53W_y7teyO7UqvOg6UcYazhI", Nickname: "李晨宇", RealName: "李晨宇", Phone: "13911282531", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			// {Openid: "oKdc53Y3vnuaLig0lRq0CiLjT8e0", Nickname: "顾玉龙", RealName: "顾玉龙", Phone: "18866919003", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			// {Openid: "oKdc53ZPIPlMFBjiUwSSMWJoKFqo", Nickname: "许龙飞", RealName: "许龙飞", Phone: "13401147346", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			// {Openid: "oKdc53RlTP4T9GCvH_579T-B9Zcs", Nickname: "谭忻", RealName: "谭忻", Phone: "13908231511", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+			// {Openid: "oKdc53TUJoHzf_LY7uvIjiipmNpw", Nickname: "王卿", RealName: "王卿", Phone: "13011811700", AvatarURL: systemConfig.DefaultAvatar, Role: "employee", Status: 1},
+		})
+	}
+
+	// 2. 初始化默认 Banner（已存在则跳过，按 image_url 去重）
+	banners := []model.Banner{
+		{ImageURL: "https://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3lccQHzZScOHm74CUWic2L0mmnUYkThXMTyjk6XMeCmiacZ8FyH8yoeNicac5vImCT8TrYURwsvfZKWufHdHqVibXtoc6oWmbLWvAv0/0?from=appmsg", JumpPath: "", IsJump: false, Sort: 1, IsValid: true},
+		{ImageURL: "https://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3lcztReQUQC5VhIYPy5wibC6gnxflibgP7hcjw88ZlT2JT3j6RConSxMej5WVWxHEKEK7Z55uKJqb1CRibShyDkmGLQMCSrUo8LrY8/0?from=appmsg", JumpPath: "", IsJump: false, Sort: 2, IsValid: true},
+		{ImageURL: "https://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3leNOuzXa7ERs9lWSBZDnrqJlqDnjVdnoaB9PmyUh20dqD72D4xibhNdDPMs7JxHZFJpqficngc2DIDwptgmlZt8lY7jp03La43KM/0?from=appmsg", JumpPath: "", IsJump: false, Sort: 3, IsValid: true},
+		{ImageURL: "https://mmbiz.qpic.cn/sz_mmbiz_jpg/XekA4rfc3ldCJC3G64VvKR4T3RVQavicFbvXooEg69icEamMyy4MGiaRlHVibgicvb3J1cGTkHlhD3oZhOiabSoP1u1hzUG4exaIwH6zJymGJk3dM/0?from=appmsg", JumpPath: "", IsJump: false, Sort: 4, IsValid: true},
+		// {ImageURL: "https://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3ldkN8Jt8j6S6VScaRn8XjQPqUFcI7c4h7RIh414pfIbAz3pvtcSobK5iaQb0jHJF0Rk0icOUffZsIOhhU9FOjqbxmfJjclfyq0W4/0?from=appmsg", JumpPath: "https://mp.sclktx.com/banner/html/goDianXinZhaPian.html", IsJump: true, Sort: 1, IsValid: true},
+		// {ImageURL: "https://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3lcOQhS7EPGLdNibSPiaFMiaiaRlsia9szOfBO6FB4rhySpickWBjLqphAnPTvRMFWpg14BbPE9GrI7zia5SAwoiaRlgicymRdWeicbkSRTEo/0?from=appmsg", JumpPath: "", IsJump: false, Sort: 2, IsValid: true},
+		// {ImageURL: "https://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3lcb48yfFVD6UTLSBzVhn0PE7vDicgTCP4RUfhUeEuJxwzQ0bib7VFagO8ZiapuEfOiadtW2Z7aWBcBzDQKP904nZzK4yObg90OL0GY/0?from=appmsg", JumpPath: "https://mp.sclktx.com/banner/html/goFireFighting.html", IsJump: true, Sort: 3, IsValid: true},
+		// {ImageURL: "https://mmbiz.qpic.cn/sz_mmbiz_jpg/XekA4rfc3lfCJtj6yQP5BepYf4ACE5WXCBlaGoLnZ7DWneO4nRqYL5oYMYmibiaG7JwlZUbPHLC9OMJicmUMlN9aQxDgdDICxibsbXZmTcBjanQ/0?from=appmsg", JumpPath: "https://mp.sclktx.com/banner/html/goSafeLaw.html", IsJump: true, Sort: 4, IsValid: true},
+		// {ImageURL: "https://mmbiz.qpic.cn/mmbiz_jpg/XekA4rfc3lcLOadSAicKvm3ZXFgn9TtZUOh5tSgaJeQrqs6JhWKfszMHBQhXaicPpgVM09U3dnHBfoEriaM9fKPXYCDvsB2fiaib4TAjXMGV2Ql0/0?from=appmsg", JumpPath: "", IsJump: false, Sort: 5, IsValid: true},
+	}
+	for _, banner := range banners {
+		var existing model.Banner
+		if err := db.Where("image_url = ?", banner.ImageURL).First(&existing).Error; err != nil {
+			if err := db.Create(&banner).Error; err != nil {
+				log.Printf("Failed to create banner: %v", err)
+			}
+		}
+	}
+
+	// 3. 初始化默认通知（已存在则跳过，按 content 去重）
+	notices := []model.Notice{
+		{Title: "欢迎", Content: "欢迎来到四川凌空天行科技有限公司", Sort: 1, IsValid: true},
+	}
+	for _, notice := range notices {
+		var existing model.Notice
+		if err := db.Where("content = ?", notice.Content).First(&existing).Error; err != nil {
+			if err := db.Create(&notice).Error; err != nil {
+				log.Printf("Failed to create notice: %v", err)
+			}
+		}
+	}
+
+	// 4. 初始化默认组织架构（部门树）
+	if err := initDepartments(db); err != nil {
+		log.Printf("Failed to init departments: %v", err)
+	}
+
+	// 5. 初始化默认访客
+	var visitorCount int64
+	db.Model(&model.Visitor{}).Count(&visitorCount)
+	userId := uint(1)
+	if visitorCount == 0 {
+		visitors := []model.Visitor{
+			{UserID: &userId, Name: "张三", Phone: "15111111111", Company: "xxx公司", Gender: 1, IDType: "身份证", IDNumber: "100000000000000001"},
+			{UserID: &userId, Name: "李四", Phone: "15222222222", Company: "xxx公司", Gender: 1, IDType: "身份证", IDNumber: "100000000000000002"},
+			{UserID: &userId, Name: "王五", Phone: "15333333333", Company: "xxx公司", Gender: 1, IDType: "身份证", IDNumber: "100000000000000003"},
+			{UserID: &userId, Name: "赵六", Phone: "15444444444", Company: "xxx公司", Gender: 0, IDType: "身份证", IDNumber: "100000000000000004"},
+		}
+		for _, v := range visitors {
+			if err := db.Create(&v).Error; err != nil {
+				log.Printf("Failed to create visitor: %v", err)
+			}
+		}
+		log.Printf("Initialized %d default visitors", len(visitors))
+	}
+
+	// 6. 初始化默认物品模板
+	var goodsCount int64
+	db.Model(&model.GoodsTemplate{}).Where("user_id = ?", userId).Count(&goodsCount)
+	if goodsCount == 0 {
+		goods := []model.GoodsTemplate{
+			{UserID: userId, Name: "笔记本电脑", Quantity: 1, Model: "ThinkPad X1 Carbon", Remark: ""},
+			{UserID: userId, Name: "手机", Quantity: 1, Model: "iPhone 15", Remark: ""},
+			{UserID: userId, Name: "U盘", Quantity: 1, Model: "金士顿 64G", Remark: ""},
+			{UserID: userId, Name: "工具箱", Quantity: 1, Model: "", Remark: "内含螺丝刀、扳手等工具"},
+		}
+		for _, g := range goods {
+			if err := db.Create(&g).Error; err != nil {
+				log.Printf("Failed to create goods template: %v", err)
+			}
+		}
+		log.Printf("Initialized %d default goods templates", len(goods))
+	}
+
+	// 7. 初始化默认来访目的
+	var visitTypeCount int64
+	db.Model(&model.VisitType{}).Count(&visitTypeCount)
+	if visitTypeCount == 0 {
+		typeNames := []string{"调研考察", "工作交流", "物流运输", "外协合作", "检查巡查"}
+		for i, name := range typeNames {
+			db.Create(&model.VisitType{Name: name, Sort: i, Status: 1})
+		}
+		log.Printf("Initialized %d default visit types", len(typeNames))
+	}
+
+	// 8. 初始化默认到访区域
+	var areaCount int64
+	db.Model(&model.VisitorArea{}).Count(&areaCount)
+	if areaCount == 0 {
+		areaNames := []string{"1号楼", "2号楼", "3号楼", "4号楼", "公寓", "食堂"}
+		for i, name := range areaNames {
+			db.Create(&model.VisitorArea{Name: name, Sort: i, Status: 1})
+		}
+		log.Printf("Initialized %d default visitor areas", len(areaNames))
+	}
+
+	// 8. 初始化默认审批流数据
 	initProcessDefinitions(db)
+
+	log.Println("System data initialized successfully")
+	return nil
 }
 
 func initProcessDefinitions(db *gorm.DB) {
@@ -56,3 +198,60 @@ func initProcessDefinitions(db *gorm.DB) {
 		}
 	}
 }
+
+// initDepartments 初始化默认组织架构（扁平部门列表）
+func initDepartments(db *gorm.DB) error {
+	var count int64
+	db.Model(&model.Department{}).Count(&count)
+	if count > 0 {
+		return nil
+	}
+
+	// 1. 创建根部门
+	root := model.Department{
+		Name:   "四川凌空",
+		Sort:   1,
+		Status: 1,
+	}
+	if err := db.Create(&root).Error; err != nil {
+		return err
+	}
+
+	// 2. 创建子部门（根部门的 children）
+	departments := []string{
+		"总经理办公室",
+		"总体研发部",
+		"电气系统部",
+		"软件工程部",
+		"飞控技术部",
+		"结构工程部",
+		"热控系统部",
+		"运营管理部",
+		"交付中心",
+		"综合管理部",
+		"财务管理部",
+		"市场开发部",
+		"人力资源部",
+		"商务交流部",
+		"保密办公室",
+		"体系管理部",
+		"启昇时代",
+		"绵阳凌空",
+		"智能制造部",
+	}
+
+	for i, name := range departments {
+		dept := model.Department{
+			Name:     name,
+			ParentID: &root.ID,
+			Sort:     i + 1,
+			Status:   1,
+		}
+		if err := db.Create(&dept).Error; err != nil {
+			return err
+		}
+	}
+
+	log.Printf("Initialized root department '%s' with %d children", root.Name, len(departments))
+	return nil
+}