增加功能报价

go/controllers/backend_menu.go

@@ -113,10 +113,12 @@ func (c *BackendMenuController) GetBackendMenu() {
 		}
 	}
 
-	// 套餐功能开通过滤：仅展示租户套餐已包含的功能模块对应的菜单（未包含的整块菜单不展示）
-	backendMenus = filterMenusByTenantPackage(c.Ctx.Request.Header.Get("Authorization"), backendMenus, tid)
+	// 套餐功能开通标记：未开通模块的菜单保留但标记 locked（前端展示锁定态与升级提示，不再 404）
+	backendMenus, lockedMenuIDs := filterMenusByTenantPackageLocked(c.Ctx.Request.Header.Get("Authorization"), backendMenus, tid, true)
+	menuTree := buildMenuTree(backendMenus, 0)
+	markTreeLocked(menuTree, lockedMenuIDs)
 
-	c.Data["json"] = map[string]interface{}{"code": 200, "msg": "success", "data": buildMenuTree(backendMenus, 0)}
+	c.Data["json"] = map[string]interface{}{"code": 200, "msg": "success", "data": menuTree}
 	_ = c.ServeJSON()
 }
 
@@ -139,26 +141,51 @@ func backendJWTTenantID(auth string) uint64 {
 	return uint64(claims.TenantId)
 }
 
-// filterMenusByTenantPackage 按租户套餐包含的功能模块过滤菜单。
+// filterMenusByTenantPackage 按租户套餐包含的功能模块过滤菜单（剔除未开通模块，用于角色菜单分配等场景）。
 // tid 优先取 token 中的租户ID，其次用调用方传入的兜底值；两者都取不到时不处理（保持原行为）。
 func filterMenusByTenantPackage(authHeader string, menus []models.SystemMenu, tid uint64) []models.SystemMenu {
+	filtered, _ := filterMenusByTenantPackageLocked(authHeader, menus, tid, false)
+	return filtered
+}
+
+// filterMenusByTenantPackageLocked 按租户套餐处理菜单。
+// markLocked=false：剔除未开通模块的菜单（原行为）；markLocked=true：保留菜单并返回锁定菜单ID集合（含后代）。
+func filterMenusByTenantPackageLocked(authHeader string, menus []models.SystemMenu, tid uint64, markLocked bool) ([]models.SystemMenu, map[uint64]bool) {
 	if jwtTid := backendJWTTenantID(authHeader); jwtTid > 0 {
 		tid = jwtTid
 	}
 	if tid == 0 {
-		return menus
+		return menus, nil
 	}
 	allModules, err := services.ListEnabledModules()
 	if err != nil || len(allModules) == 0 {
-		return menus
+		return menus, nil
 	}
 	allowed := services.GetTenantModuleCodes(tid)
 	// 安全兜底：租户没有绑定套餐或套餐未配置任何功能模块时不做过滤，
 	// 避免因套餐数据缺失导致租户端菜单整体消失。
 	if len(allowed) == 0 {
-		return menus
+		return menus, nil
+	}
+	if markLocked {
+		return services.MarkMenusLockedByTenantModules(menus, allModules, allowed)
+	}
+	return services.FilterMenusByTenantModules(menus, allModules, allowed), nil
+}
+
+// markTreeLocked 将菜单树中位于锁定集合的节点标记为 locked
+func markTreeLocked(nodes []*menuNode, locked map[uint64]bool) {
+	if len(nodes) == 0 || len(locked) == 0 {
+		return
+	}
+	for _, n := range nodes {
+		if locked[n.ID] {
+			n.Locked = true
+		}
+		if len(n.Children) > 0 {
+			markTreeLocked(n.Children, locked)
+		}
 	}
-	return services.FilterMenusByTenantModules(menus, allModules, allowed)
 }
 
 // parseRightsToSet 将角色 rights 解析为菜单 ID 集合（兼容 JSON 数组 / 逗号分隔）
@@ -350,6 +377,7 @@ type menuNode struct {
 	Views         []int       `json:"views,omitempty"`
 	Type          int8        `json:"type"`
 	Permission    string      `json:"permission,omitempty"`
+	Locked        bool        `json:"locked,omitempty"`
 	Children      []*menuNode `json:"children,omitempty"`
 }
 

go/controllers/backend_modules.go

@@ -6,10 +6,18 @@ import (
 
 	"server/models"
 	"server/pkg/jwtutil"
+	"server/services"
 
 	beego "github.com/beego/beego/v2/server/web"
 )
 
+// tenantModuleItem 模块列表返回项：在模块基础信息上补充套餐开通状态，
+// locked=true 表示该模块不在当前租户已购套餐内（前端置灰并提示购买套餐）。
+type tenantModuleItem struct {
+	models.SystemModules
+	Locked bool `json:"locked"`
+}
+
 // BackendModulesController backend 模块接口（yz_system_modules）
 type BackendModulesController struct {
 	beego.Controller
@@ -41,14 +49,16 @@ func (c *BackendModulesController) jsonErr(httpStatus, bizCode int, msg string)
 }
 
 // GetTenantList GET /backend/modules/getTenantList
-// 返回当前 backend 账号可见的模块。当前实现：返回 status=1 且 is_show=1 的全部模块。
+// 返回当前 backend 账号可见的模块（status=1 且 is_show=1）。
+// 同时按当前租户已购套餐标记 locked：未开通的功能模块前端置灰、禁止跳转并提示购买套餐。
 func (c *BackendModulesController) GetTenantList() {
-	if _, err := c.backendModulesClaims(); err != nil {
+	claims, err := c.backendModulesClaims()
+	if err != nil {
 		c.jsonErr(401, 401, err.Error())
 		return
 	}
 	var rows []models.SystemModules
-	_, err := models.Orm.QueryTable(new(models.SystemModules)).
+	_, err = models.Orm.QueryTable(new(models.SystemModules)).
 		Filter("delete_time__isnull", true).
 		Filter("status", 1).
 		Filter("is_show", 1).
@@ -58,12 +68,33 @@ func (c *BackendModulesController) GetTenantList() {
 		c.jsonErr(500, 500, "获取失败："+err.Error())
 		return
 	}
+
+	// 租户已开通的模块编码集合（来自租户绑定/生效套餐）
+	allowed := map[string]bool{}
+	packageName := ""
+	if tid := uint64(claims.TenantId); tid > 0 {
+		allowed = services.GetTenantModuleCodes(tid)
+		if pkg, e := services.GetTenantPackage(tid); e == nil && pkg != nil {
+			packageName = pkg.Name
+		}
+	}
+
+	list := make([]tenantModuleItem, 0, len(rows))
+	for _, m := range rows {
+		// 安全兜底：租户未绑定套餐或套餐未配置任何功能模块时不做锁定，
+		// 避免套餐数据缺失导致全部功能不可用。
+		locked := len(allowed) > 0 && !allowed[strings.TrimSpace(m.Code)]
+		list = append(list, tenantModuleItem{SystemModules: m, Locked: locked})
+	}
+
 	c.Data["json"] = map[string]interface{}{
 		"code": 200,
 		"msg":  "获取成功",
 		"data": map[string]interface{}{
-			"list":  rows,
-			"total": len(rows),
+			"list":         list,
+			"total":        len(list),
+			"package_name": packageName,
+			"purchase_url": services.GetPackagePurchaseURL(),
 		},
 	}
 	_ = c.ServeJSON()

go/controllers/backend_product_purchase.go

@@ -0,0 +1,312 @@
+package controllers
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"io"
+	"strconv"
+	"strings"
+	"time"
+
+	"server/models"
+	"server/pkg/jwtutil"
+	"server/services/payment"
+
+	beego "github.com/beego/beego/v2/server/web"
+)
+
+// BackendProductPurchaseController 租户端「产品购买」接口（只读产品 + 下单 + 订单状态）。
+// 注意：与 CMS 产品管理的 BackendProductController 区分开。
+// 租户身份来自 JWT：UserType=backend，TenantId 即租户ID。
+type BackendProductPurchaseController struct {
+	beego.Controller
+}
+
+func (c *BackendProductPurchaseController) claims() (*jwtutil.Claims, error) {
+	auth := c.Ctx.Request.Header.Get("Authorization")
+	if auth == "" {
+		return nil, errors.New("未登录")
+	}
+	parts := strings.SplitN(auth, " ", 2)
+	if len(parts) != 2 || parts[0] != "Bearer" {
+		return nil, errors.New("认证信息格式错误")
+	}
+	claims, err := jwtutil.ParseToken(parts[1])
+	if err != nil {
+		return nil, errors.New("无效的token")
+	}
+	if claims.UserType != "backend" {
+		return nil, errors.New("无权访问")
+	}
+	return claims, nil
+}
+
+func (c *BackendProductPurchaseController) jsonErr(httpStatus, bizCode int, msg string) {
+	c.Ctx.Output.SetStatus(httpStatus)
+	c.Data["json"] = map[string]interface{}{"code": bizCode, "msg": msg}
+	_ = c.ServeJSON()
+}
+
+func (c *BackendProductPurchaseController) jsonOK(data interface{}, msg string) {
+	if msg == "" {
+		msg = "success"
+	}
+	resp := map[string]interface{}{"code": 200, "msg": msg}
+	if data != nil {
+		resp["data"] = data
+	}
+	c.Data["json"] = resp
+	_ = c.ServeJSON()
+}
+
+func (c *BackendProductPurchaseController) tenantName(tid uint64) string {
+	if tid == 0 {
+		return ""
+	}
+	tenant := &models.SystemTenant{}
+	if err := models.Orm.QueryTable(new(models.SystemTenant)).
+		Filter("id", tid).
+		Filter("delete_time__isnull", true).
+		One(tenant); err != nil {
+		return ""
+	}
+	return tenant.TenantName
+}
+
+// GetProductList GET /backend/product/list
+// 上架产品列表（含功能节点与启用档位），供购买页/产品列表展示
+func (c *BackendProductPurchaseController) GetProductList() {
+	if _, err := c.claims(); err != nil {
+		c.jsonErr(401, 401, err.Error())
+		return
+	}
+	var rows []models.PlatformProduct
+	if _, err := models.Orm.QueryTable(new(models.PlatformProduct)).
+		Filter("delete_time__isnull", true).
+		Filter("status", 1).
+		OrderBy("sort", "id").
+		All(&rows); err != nil {
+		c.jsonErr(500, 500, "获取失败："+err.Error())
+		return
+	}
+	ids := make([]uint64, 0, len(rows))
+	for _, r := range rows {
+		ids = append(ids, r.ID)
+	}
+	featureMap := loadProductFeatures(ids)
+
+	list := make([]map[string]interface{}, 0, len(rows))
+	for _, r := range rows {
+		list = append(list, productToMap(r, featureMap[r.ID]))
+	}
+	c.jsonOK(map[string]interface{}{"list": list, "total": len(list)}, "获取成功")
+}
+
+// GetProductDetailByCode GET /backend/product/detail/:code
+// 按产品编码取详情（租户端 home 卡片按模块 code 跳转购买页时使用）
+func (c *BackendProductPurchaseController) GetProductDetailByCode() {
+	if _, err := c.claims(); err != nil {
+		c.jsonErr(401, 401, err.Error())
+		return
+	}
+	code := strings.TrimSpace(c.Ctx.Input.Param(":code"))
+	if code == "" {
+		c.jsonErr(400, 400, "产品编码不能为空")
+		return
+	}
+	var row models.PlatformProduct
+	if err := models.Orm.QueryTable(new(models.PlatformProduct)).
+		Filter("code", code).
+		Filter("delete_time__isnull", true).
+		Filter("status", 1).
+		One(&row); err != nil {
+		c.jsonErr(404, 404, "产品不存在或未上架")
+		return
+	}
+	c.jsonOK(productToMap(row, loadProductFeatures([]uint64{row.ID})[row.ID]), "获取成功")
+}
+
+type createProductOrderPayload struct {
+	ProductCode string `json:"product_code"`
+	Channel     string `json:"channel"`
+	PayType     string `json:"pay_type"`
+	ReturnURL   string `json:"return_url"`
+}
+
+// CreateOrder POST /backend/product/order/create
+// 创建购买订单；channel 非空时同时创建支付单并返回拉起支付参数。
+func (c *BackendProductPurchaseController) CreateOrder() {
+	claims, err := c.claims()
+	if err != nil {
+		c.jsonErr(401, 401, err.Error())
+		return
+	}
+	tid := uint64(claims.TenantId)
+	if tid == 0 {
+		c.jsonErr(401, 401, "未获取到租户信息")
+		return
+	}
+
+	body, _ := io.ReadAll(c.Ctx.Request.Body)
+	var p createProductOrderPayload
+	if err := json.Unmarshal(body, &p); err != nil {
+		c.jsonErr(400, 400, "参数错误")
+		return
+	}
+	p.ProductCode = strings.TrimSpace(p.ProductCode)
+	p.Channel = strings.TrimSpace(p.Channel)
+	if p.ProductCode == "" {
+		c.jsonErr(400, 400, "产品不能为空")
+		return
+	}
+
+	var product models.PlatformProduct
+	if err := models.Orm.QueryTable(new(models.PlatformProduct)).
+		Filter("code", p.ProductCode).
+		Filter("delete_time__isnull", true).
+		Filter("status", 1).
+		One(&product); err != nil {
+		c.jsonErr(404, 404, "产品不存在或未上架")
+		return
+	}
+	if product.Price <= 0 {
+		c.jsonErr(400, 400, "该产品未配置价格，请联系平台")
+		return
+	}
+
+	now := time.Now()
+	order := &models.PlatformProductOrder{
+		OrderNo:     "PO" + strconv.FormatInt(now.UnixNano(), 10),
+		Tid:         tid,
+		TenantName:  c.tenantName(tid),
+		ProductID:   product.ID,
+		ProductCode: product.Code,
+		ProductName: product.Name,
+		Amount:      product.Price,
+		Status:      models.ProductOrderStatusPending,
+		UpdateTime:  &now,
+	}
+
+	// 未选择支付渠道：仅落单，等待平台确认（线下转账/试用审批场景）
+	if p.Channel == "" {
+		if _, err := models.Orm.Insert(order); err != nil {
+			c.jsonErr(500, 500, "下单失败："+err.Error())
+			return
+		}
+		c.jsonOK(map[string]interface{}{
+			"order_no": order.OrderNo,
+			"pay_no":   "",
+			"amount":   order.Amount,
+			"offline":  true,
+		}, "下单成功，请等待平台开通")
+		return
+	}
+
+	amountFen := int64(order.Amount*100 + 0.5)
+	subject := product.Name
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	payOrder, params, err := payment.CreatePayment(ctx, payment.CreateInput{
+		OutTradeNo: order.OrderNo,
+		OrderType:  models.CommissionOrderTypeModuleShop,
+		TenantID:   strconv.FormatUint(tid, 10),
+		TenantName: order.TenantName,
+		Amount:     amountFen,
+		Channel:    p.Channel,
+		Subject:    subject,
+		ReturnURL:  strings.TrimSpace(p.ReturnURL),
+		ClientIP:   c.Ctx.Input.IP(),
+		PayType:    p.PayType,
+	})
+	if err != nil {
+		c.jsonErr(400, 400, "创建支付单失败："+err.Error())
+		return
+	}
+
+	order.PayNo = payOrder.PayNo
+	order.Channel = p.Channel
+	if _, err := models.Orm.Insert(order); err != nil {
+		c.jsonErr(500, 500, "下单失败："+err.Error())
+		return
+	}
+	c.jsonOK(map[string]interface{}{
+		"order_no":   order.OrderNo,
+		"pay_no":     payOrder.PayNo,
+		"amount":     order.Amount,
+		"channel":    p.Channel,
+		"pay_params": params,
+		"offline":    false,
+	}, "下单成功")
+}
+
+// GetOrderStatus GET /backend/product/order/status?order_no=xxx
+// 查询订单状态；在线支付时同步渠道状态，已支付则自动开通套餐。
+func (c *BackendProductPurchaseController) GetOrderStatus() {
+	claims, err := c.claims()
+	if err != nil {
+		c.jsonErr(401, 401, err.Error())
+		return
+	}
+	orderNo := strings.TrimSpace(c.GetString("order_no"))
+	if orderNo == "" {
+		c.jsonErr(400, 400, "订单号不能为空")
+		return
+	}
+	var order models.PlatformProductOrder
+	if err := models.Orm.QueryTable(new(models.PlatformProductOrder)).
+		Filter("order_no", orderNo).
+		Filter("tid", uint64(claims.TenantId)).
+		Filter("delete_time__isnull", true).
+		One(&order); err != nil {
+		c.jsonErr(404, 404, "订单不存在")
+		return
+	}
+
+	// 在线支付：同步渠道状态，支付成功后自动开通
+	if order.Status == models.ProductOrderStatusPending && order.PayNo != "" {
+		ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+		defer cancel()
+		if payOrder, qerr := payment.QueryPayment(ctx, order.PayNo, true); qerr == nil && payOrder.Status == models.PayStatusPaid {
+			now := time.Now()
+			order.Status = models.ProductOrderStatusPaid
+			order.UpdateTime = &now
+			_, _ = models.Orm.Update(&order, "Status", "UpdateTime")
+		}
+	}
+	if order.Status == models.ProductOrderStatusPaid {
+		if err := activateProductOrder(&order, "支付成功自动开通"); err == nil {
+			_ = models.Orm.Read(&order)
+		}
+	}
+
+	c.jsonOK(map[string]interface{}{
+		"order_no":      order.OrderNo,
+		"status":        order.Status,
+		"amount":        order.Amount,
+		"product_name":  order.ProductName,
+		"pay_no":        order.PayNo,
+		"activate_time": order.ActivateTime,
+	}, "获取成功")
+}
+
+// GetMyOrders GET /backend/product/order/list 本租户购买记录
+func (c *BackendProductPurchaseController) GetMyOrders() {
+	claims, err := c.claims()
+	if err != nil {
+		c.jsonErr(401, 401, err.Error())
+		return
+	}
+	var rows []models.PlatformProductOrder
+	if _, err := models.Orm.QueryTable(new(models.PlatformProductOrder)).
+		Filter("tid", uint64(claims.TenantId)).
+		Filter("delete_time__isnull", true).
+		OrderBy("-id").
+		Limit(50).
+		All(&rows); err != nil {
+		c.jsonErr(500, 500, "获取失败："+err.Error())
+		return
+	}
+	c.jsonOK(map[string]interface{}{"list": rows, "total": len(rows)}, "获取成功")
+}

go/controllers/backend_tenant_quota.go

@@ -47,15 +47,18 @@ func (c *BackendTenantQuotaController) GetQuotaInfo() {
 		"code": 200,
 		"msg":  "success",
 		"data": map[string]interface{}{
-			"tid":              info.Tid,
-			"package_id":       info.EffectivePackageID,
-			"package_name":     info.PackageName,
-			"quota":            info.Quota,
-			"used":             info.Used,
-			"remaining":        info.Remaining,
-			"extra_user_price": info.ExtraUserPrice,
-			"module_codes":     moduleCodes,
-			"module_names":     moduleNames,
+			"tid":                 info.Tid,
+			"package_id":          info.EffectivePackageID,
+			"package_name":        info.PackageName,
+			"quota":               info.Quota,
+			"used":                info.Used,
+			"remaining":           info.Remaining,
+			"extra_user_price":    info.ExtraUserPrice,
+			"duration_days":       info.DurationDays,
+			"package_expire_time": info.PackageExpireTime,
+			"days_remaining":      info.DaysRemaining,
+			"module_codes":        moduleCodes,
+			"module_names":        moduleNames,
 		},
 	}
 	_ = c.ServeJSON()

go/controllers/platform_product.go

@@ -0,0 +1,431 @@
+package controllers
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"strconv"
+	"strings"
+	"time"
+
+	"server/models"
+	"server/services"
+
+	beego "github.com/beego/beego/v2/server/web"
+)
+
+// PlatformProductController 平台端「产品定价」管理
+//
+// 产品（名称 / 编码 / 价格 / 关联功能 / 上下架）+ 功能节点树 -> 租户端购买展示与下单。
+type PlatformProductController struct {
+	beego.Controller
+}
+
+func (c *PlatformProductController) jsonErr(httpStatus, bizCode int, msg string) {
+	c.Ctx.Output.SetStatus(httpStatus)
+	c.Data["json"] = map[string]interface{}{"code": bizCode, "msg": msg}
+	_ = c.ServeJSON()
+}
+
+func (c *PlatformProductController) jsonOK(data interface{}, msg string) {
+	if msg == "" {
+		msg = "success"
+	}
+	resp := map[string]interface{}{"code": 200, "msg": msg}
+	if data != nil {
+		resp["data"] = data
+	}
+	c.Data["json"] = resp
+	_ = c.ServeJSON()
+}
+
+func (c *PlatformProductController) readBody(target interface{}) bool {
+	raw, err := io.ReadAll(c.Ctx.Request.Body)
+	if err != nil {
+		c.jsonErr(400, 400, "参数错误")
+		return false
+	}
+	if err := json.Unmarshal(raw, target); err != nil {
+		c.jsonErr(400, 400, "参数错误")
+		return false
+	}
+	return true
+}
+
+// ============================ 产品 ============================
+
+type productFeaturePayload struct {
+	ID          uint64 `json:"id"`
+	Pid         uint64 `json:"pid"`
+	Title       string `json:"title"`
+	Description string `json:"description"`
+	Sort        int    `json:"sort"`
+}
+
+type productPayload struct {
+	Code       string                  `json:"code"`
+	Name       string                  `json:"name"`
+	Price      *float64                `json:"price"`
+	ModuleCode string                  `json:"module_code"`
+	Sort       *int                    `json:"sort"`
+	Status     *int8                   `json:"status"`
+	Remark     string                  `json:"remark"`
+	Features   []productFeaturePayload `json:"features"`
+}
+
+// loadProductFeatures 批量加载产品功能节点（扁平，含 pid，前端按 pid 组装树）
+func loadProductFeatures(productIDs []uint64) map[uint64][]models.PlatformProductFeature {
+	result := map[uint64][]models.PlatformProductFeature{}
+	if len(productIDs) == 0 {
+		return result
+	}
+	var rows []models.PlatformProductFeature
+	if _, err := models.Orm.QueryTable(new(models.PlatformProductFeature)).
+		Filter("product_id__in", productIDs).
+		OrderBy("sort", "id").
+		All(&rows); err != nil {
+		return result
+	}
+	for _, r := range rows {
+		result[r.ProductID] = append(result[r.ProductID], r)
+	}
+	return result
+}
+
+func productToMap(p models.PlatformProduct, features []models.PlatformProductFeature) map[string]interface{} {
+	if features == nil {
+		features = []models.PlatformProductFeature{}
+	}
+	return map[string]interface{}{
+		"id":          p.ID,
+		"code":        p.Code,
+		"name":        p.Name,
+		"price":       p.Price,
+		"module_code": p.ModuleCode,
+		"sort":        p.Sort,
+		"status":      p.Status,
+		"remark":      p.Remark,
+		"features":    features,
+		"create_time": p.CreateTime,
+		"update_time": p.UpdateTime,
+	}
+}
+
+// GetProductList GET /platform/product/list
+func (c *PlatformProductController) GetProductList() {
+	keyword := strings.TrimSpace(c.GetString("keyword"))
+	status := strings.TrimSpace(c.GetString("status"))
+
+	qs := models.Orm.QueryTable(new(models.PlatformProduct)).Filter("delete_time__isnull", true)
+	if keyword != "" {
+		qs = qs.Filter("name__icontains", keyword)
+	}
+	if status == "0" || status == "1" {
+		v, _ := strconv.Atoi(status)
+		qs = qs.Filter("status", v)
+	}
+
+	var rows []models.PlatformProduct
+	if _, err := qs.OrderBy("sort", "id").All(&rows); err != nil {
+		c.jsonErr(500, 500, "获取失败："+err.Error())
+		return
+	}
+
+	ids := make([]uint64, 0, len(rows))
+	for _, r := range rows {
+		ids = append(ids, r.ID)
+	}
+	featureMap := loadProductFeatures(ids)
+
+	list := make([]map[string]interface{}, 0, len(rows))
+	for _, r := range rows {
+		list = append(list, productToMap(r, featureMap[r.ID]))
+	}
+	c.jsonOK(map[string]interface{}{"list": list, "total": len(list)}, "获取成功")
+}
+
+// GetProductDetail GET /platform/product/detail/:id
+func (c *PlatformProductController) GetProductDetail() {
+	id := parseUint64Param(c.Ctx.Input.Param(":id"))
+	if id == 0 {
+		c.jsonErr(400, 400, "参数错误")
+		return
+	}
+	var row models.PlatformProduct
+	if err := models.Orm.QueryTable(new(models.PlatformProduct)).
+		Filter("id", id).
+		Filter("delete_time__isnull", true).
+		One(&row); err != nil {
+		c.jsonErr(404, 404, "产品不存在")
+		return
+	}
+	c.jsonOK(productToMap(row, loadProductFeatures([]uint64{id})[id]), "获取成功")
+}
+
+// saveProductFeatures 覆盖式保存功能节点（含父子关系 pid）
+// 前端传扁平数组，顶级节点 pid=0；子节点的 pid 指向父节点在库中的真实 ID，
+// 因此这里先按「前端临时序号 -> 库 ID」建立映射再落库。
+func saveProductFeatures(productID uint64, items []productFeaturePayload) error {
+	if _, err := models.Orm.QueryTable(new(models.PlatformProductFeature)).
+		Filter("product_id", productID).Delete(); err != nil {
+		return err
+	}
+	if len(items) == 0 {
+		return nil
+	}
+
+	// 第一遍：按输入顺序建节点，记录 oldID(库中已有ID或前端临时ID) -> newID
+	oldToNew := map[uint64]uint64{}
+	type pending struct {
+		item  productFeaturePayload
+		newID uint64
+	}
+	created := make([]pending, 0, len(items))
+
+	for i, it := range items {
+		title := strings.TrimSpace(it.Title)
+		if title == "" {
+			continue
+		}
+		sort := it.Sort
+		if sort == 0 {
+			sort = i + 1
+		}
+		row := &models.PlatformProductFeature{
+			ProductID:   productID,
+			Title:       title,
+			Description: strings.TrimSpace(it.Description),
+			Sort:        sort,
+		}
+		id, err := models.Orm.Insert(row)
+		if err != nil {
+			return err
+		}
+		// 前端用 id 字段标识节点：已存在节点传库中真实ID，新增节点传负数临时ID，
+		// 统一建立「旧标识 -> 新ID」映射，供子节点回填 pid。
+		if it.ID != 0 {
+			oldToNew[it.ID] = uint64(id)
+		}
+		created = append(created, pending{item: it, newID: uint64(id)})
+	}
+
+	// 第二遍：回填父级
+	for _, p := range created {
+		pid := p.item.Pid
+		if pid == 0 {
+			continue
+		}
+		if newPid, ok := oldToNew[pid]; ok {
+			pid = newPid
+		}
+		// 父节点已被删除或指向自身时降级为顶级
+		if pid == p.newID {
+			pid = 0
+		}
+		if _, err := models.Orm.QueryTable(new(models.PlatformProductFeature)).
+			Filter("id", p.newID).
+			Update(map[string]interface{}{"pid": pid}); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// CreateProduct POST /platform/product/create
+func (c *PlatformProductController) CreateProduct() {
+	var p productPayload
+	if !c.readBody(&p) {
+		return
+	}
+	p.Code = strings.TrimSpace(p.Code)
+	p.Name = strings.TrimSpace(p.Name)
+	if p.Name == "" {
+		c.jsonErr(400, 400, "产品名称不能为空")
+		return
+	}
+	if p.Code == "" {
+		c.jsonErr(400, 400, "产品编码不能为空")
+		return
+	}
+	cnt, _ := models.Orm.QueryTable(new(models.PlatformProduct)).
+		Filter("code", p.Code).
+		Filter("delete_time__isnull", true).
+		Count()
+	if cnt > 0 {
+		c.jsonErr(400, 400, "产品编码已存在")
+		return
+	}
+
+	now := time.Now()
+	row := &models.PlatformProduct{
+		Code:       p.Code,
+		Name:       p.Name,
+		Price:      valueFloat(p.Price, 0),
+		ModuleCode: strings.TrimSpace(p.ModuleCode),
+		Sort:       valueInt(p.Sort, 0),
+		Status:     valueInt8(p.Status, 1),
+		Remark:     strings.TrimSpace(p.Remark),
+		UpdateTime: &now,
+	}
+	id, err := models.Orm.Insert(row)
+	if err != nil {
+		c.jsonErr(500, 500, "创建失败："+err.Error())
+		return
+	}
+	if p.Features != nil {
+		if err := saveProductFeatures(uint64(id), p.Features); err != nil {
+			c.jsonErr(500, 500, "功能节点保存失败："+err.Error())
+			return
+		}
+	}
+	c.jsonOK(map[string]interface{}{"id": uint64(id)}, "创建成功")
+}
+
+// EditProduct POST /platform/product/edit/:id
+func (c *PlatformProductController) EditProduct() {
+	id := parseUint64Param(c.Ctx.Input.Param(":id"))
+	if id == 0 {
+		c.jsonErr(400, 400, "参数错误")
+		return
+	}
+	var p productPayload
+	if !c.readBody(&p) {
+		return
+	}
+	p.Code = strings.TrimSpace(p.Code)
+	p.Name = strings.TrimSpace(p.Name)
+	if p.Name == "" {
+		c.jsonErr(400, 400, "产品名称不能为空")
+		return
+	}
+	if p.Code != "" {
+		cnt, _ := models.Orm.QueryTable(new(models.PlatformProduct)).
+			Filter("code", p.Code).
+			Filter("id__ne", id).
+			Filter("delete_time__isnull", true).
+			Count()
+		if cnt > 0 {
+			c.jsonErr(400, 400, "产品编码已存在")
+			return
+		}
+	}
+
+	now := time.Now()
+	update := map[string]interface{}{
+		"name":        p.Name,
+		"module_code": strings.TrimSpace(p.ModuleCode),
+		"sort":        valueInt(p.Sort, 0),
+		"status":      valueInt8(p.Status, 1),
+		"remark":      strings.TrimSpace(p.Remark),
+		"update_time": now,
+	}
+	if p.Code != "" {
+		update["code"] = p.Code
+	}
+	if p.Price != nil {
+		update["price"] = *p.Price
+	}
+	if _, err := models.Orm.QueryTable(new(models.PlatformProduct)).
+		Filter("id", id).
+		Filter("delete_time__isnull", true).
+		Update(update); err != nil {
+		c.jsonErr(500, 500, "编辑失败："+err.Error())
+		return
+	}
+	if p.Features != nil {
+		if err := saveProductFeatures(id, p.Features); err != nil {
+			c.jsonErr(500, 500, "功能节点保存失败："+err.Error())
+			return
+		}
+	}
+	c.jsonOK(nil, "编辑成功")
+}
+
+// DeleteProduct DELETE /platform/product/delete/:id（软删）
+func (c *PlatformProductController) DeleteProduct() {
+	id := parseUint64Param(c.Ctx.Input.Param(":id"))
+	if id == 0 {
+		c.jsonErr(400, 400, "参数错误")
+		return
+	}
+	now := time.Now()
+	n, err := models.Orm.QueryTable(new(models.PlatformProduct)).
+		Filter("id", id).
+		Filter("delete_time__isnull", true).
+		Update(map[string]interface{}{"delete_time": now, "update_time": now})
+	if err != nil {
+		c.jsonErr(500, 500, "删除失败："+err.Error())
+		return
+	}
+	if n == 0 {
+		c.jsonErr(404, 404, "产品不存在")
+		return
+	}
+	_, _ = models.Orm.QueryTable(new(models.PlatformProductFeature)).Filter("product_id", id).Delete()
+	c.jsonOK(nil, "删除成功")
+}
+
+// ============================ 购买订单 ============================
+
+// GetProductOrders GET /platform/product/orders?status=&keyword=
+func (c *PlatformProductController) GetProductOrders() {
+	status := strings.TrimSpace(c.GetString("status"))
+	keyword := strings.TrimSpace(c.GetString("keyword"))
+
+	qs := models.Orm.QueryTable(new(models.PlatformProductOrder)).Filter("delete_time__isnull", true)
+	if status != "" {
+		qs = qs.Filter("status", status)
+	}
+	if keyword != "" {
+		qs = qs.Filter("product_name__icontains", keyword)
+	}
+	var rows []models.PlatformProductOrder
+	if _, err := qs.OrderBy("-id").Limit(200).All(&rows); err != nil {
+		c.jsonErr(500, 500, "获取失败："+err.Error())
+		return
+	}
+	c.jsonOK(map[string]interface{}{"list": rows, "total": len(rows)}, "获取成功")
+}
+
+// ActivateProductOrder POST /platform/product/order/activate/:id
+// 手动开通：将订单置为已支付并绑定套餐（支付回调失败/线下付款时使用）
+func (c *PlatformProductController) ActivateProductOrder() {
+	id := parseUint64Param(c.Ctx.Input.Param(":id"))
+	if id == 0 {
+		c.jsonErr(400, 400, "参数错误")
+		return
+	}
+	var order models.PlatformProductOrder
+	if err := models.Orm.QueryTable(new(models.PlatformProductOrder)).
+		Filter("id", id).
+		Filter("delete_time__isnull", true).
+		One(&order); err != nil {
+		c.jsonErr(404, 404, "订单不存在")
+		return
+	}
+	if order.Status == models.ProductOrderStatusActivated {
+		c.jsonErr(400, 400, "订单已开通")
+		return
+	}
+	if err := activateProductOrder(&order, "平台手动开通"); err != nil {
+		c.jsonErr(400, 400, err.Error())
+		return
+	}
+	c.jsonOK(nil, "开通成功")
+}
+
+// activateProductOrder 订单开通：绑定套餐（产品配置了套餐时）并置为已开通
+func activateProductOrder(order *models.PlatformProductOrder, operator string) error {
+	if order.PackageID > 0 && order.Tid > 0 {
+		if _, err := services.ApplyPackageToTenant(order.Tid, order.PackageID, true); err != nil {
+			return fmt.Errorf("开通失败：%v", err)
+		}
+	}
+	now := time.Now()
+	order.Status = models.ProductOrderStatusActivated
+	order.ActivateTime = &now
+	order.UpdateTime = &now
+	order.Remark = strings.TrimSpace(order.Remark + " " + operator)
+	_, err := models.Orm.Update(order, "Status", "ActivateTime", "Remark", "UpdateTime")
+	return err
+}

go/controllers/platform_tenant.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"math"
 	"strconv"
 	"strings"
 	"time"
@@ -32,9 +33,12 @@ type tenantDTO struct {
 	// 套餐与用户数配额
 	PackageID   uint64 `json:"package_id"`
 	PackageName string `json:"package_name"`
-	UserQuota   int    `json:"user_quota"`
-	UserUsed    int    `json:"user_used"`
-	Remark      string `json:"remark"`
+	// PackageExpireTime 套餐计费到期时间（NULL-永久有效）；DaysRemaining 剩余天数
+	PackageExpireTime *time.Time `json:"package_expire_time"`
+	DaysRemaining     int        `json:"days_remaining"`
+	UserQuota   int        `json:"user_quota"`
+	UserUsed    int        `json:"user_used"`
+	Remark      string     `json:"remark"`
 	CreateTime  *time.Time `json:"create_time,omitempty"`
 	UpdateTime  *time.Time `json:"update_time,omitempty"`
 	DeleteTime  *time.Time `json:"delete_time,omitempty"`
@@ -82,6 +86,13 @@ func stringPtr(s string) *string {
 func toTenantDTO(t models.SystemTenant) tenantDTO {
 	ct := t.CreateTime
 	ut := t.UpdateTime
+	daysRemaining := 0
+	if t.PackageExpireTime != nil {
+		daysRemaining = int(math.Ceil(time.Until(*t.PackageExpireTime).Hours() / 24))
+		if daysRemaining < 0 {
+			daysRemaining = 0
+		}
+	}
 	return tenantDTO{
 		ID:            t.ID,
 		TenantCode:    t.TenantCode,
@@ -93,6 +104,8 @@ func toTenantDTO(t models.SystemTenant) tenantDTO {
 		Worktime:      stringValue(t.Worktime),
 		Status:        t.Status,
 		PackageID:     t.PackageID,
+		PackageExpireTime: t.PackageExpireTime,
+		DaysRemaining:     daysRemaining,
 		UserQuota:     t.UserQuota,
 		Remark:        stringValue(t.Remark),
 		CreateTime:    &ct,
@@ -188,6 +201,11 @@ func (c *PlatformTenantController) GetTenantDetail() {
 
 	dto := toTenantDTO(t)
 	if pkg, err := services.GetTenantPackage(t.ID); err == nil && pkg != nil {
+		if pkg.ID != t.PackageID {
+			// 套餐已因到期自动降级，原到期时间不再有效
+			dto.PackageExpireTime = nil
+			dto.DaysRemaining = 0
+		}
 		dto.PackageID = pkg.ID
 		dto.PackageName = pkg.Name
 	}
@@ -293,7 +311,10 @@ func (c *PlatformTenantController) CreateTenant() {
 	// 套餐与用户数上限：未指定套餐时使用默认套餐，用户数取其包含用户数（兜底 20）
 	packageID := uint64(0)
 	userQuota := services.DefaultTenantUserQuota
-	if p.PackageID != nil && *p.PackageID > 0 {
+	// 显式选择的套餐按套餐有效时长计费；未指定而兜底绑定默认套餐的不设置到期时间
+	explicitPackage := p.PackageID != nil && *p.PackageID > 0
+	var packageExpire *time.Time
+	if explicitPackage {
 		packageID = *p.PackageID
 	}
 	if packageID == 0 {
@@ -309,8 +330,14 @@ func (c *PlatformTenantController) CreateTenant() {
 		if err := models.Orm.QueryTable(new(models.SystemTenantPackage)).
 			Filter("id", packageID).
 			Filter("delete_time__isnull", true).
-			One(&pkg); err == nil && pkg.UserQuota > 0 {
-			userQuota = pkg.UserQuota
+			One(&pkg); err == nil {
+			if pkg.UserQuota > 0 {
+				userQuota = pkg.UserQuota
+			}
+			if explicitPackage {
+				e := services.PackageExpireFromNow(&pkg)
+				packageExpire = &e
+			}
 		}
 	}
 	if p.UserQuota != nil && *p.UserQuota > 0 {
@@ -321,17 +348,18 @@ func (c *PlatformTenantController) CreateTenant() {
 	}
 
 	t := models.SystemTenant{
-		TenantCode:    p.TenantCode,
-		TenantName:    p.TenantName,
-		ContactPerson: stringPtr(p.ContactPerson),
-		ContactPhone:  stringPtr(p.ContactPhone),
-		ContactEmail:  stringPtr(p.ContactEmail),
-		Address:       stringPtr(p.Address),
-		Worktime:      stringPtr(p.Worktime),
-		Status:        status,
-		PackageID:     packageID,
-		UserQuota:     userQuota,
-		Remark:        stringPtr(p.Remark),
+		TenantCode:        p.TenantCode,
+		TenantName:        p.TenantName,
+		ContactPerson:     stringPtr(p.ContactPerson),
+		ContactPhone:      stringPtr(p.ContactPhone),
+		ContactEmail:      stringPtr(p.ContactEmail),
+		Address:           stringPtr(p.Address),
+		Worktime:          stringPtr(p.Worktime),
+		Status:            status,
+		PackageID:         packageID,
+		PackageExpireTime: packageExpire,
+		UserQuota:         userQuota,
+		Remark:            stringPtr(p.Remark),
 	}
 
 	id, err := models.Orm.Insert(&t)
@@ -381,17 +409,17 @@ func (c *PlatformTenantController) EditTenant() {
 	if p.PackageID != nil {
 		pkgID := *p.PackageID
 		if pkgID > 0 {
-			var pkg models.SystemTenantPackage
-			if err := models.Orm.QueryTable(new(models.SystemTenantPackage)).
-				Filter("id", pkgID).
-				Filter("delete_time__isnull", true).
-				One(&pkg); err != nil {
-				c.Data["json"] = map[string]interface{}{"code": 400, "msg": "套餐不存在"}
+			// 套餐切换/续费：按套餐有效时长重新计费（同套餐未到期在原到期时间上顺延），不动用户数上限
+			if _, err := services.ApplyPackageToTenant(id, pkgID, false); err != nil {
+				c.Data["json"] = map[string]interface{}{"code": 400, "msg": err.Error()}
 				_ = c.ServeJSON()
 				return
 			}
+		} else {
+			// 解绑套餐：回退未绑定状态（视为默认套餐），清除计费到期时间
+			update["package_id"] = 0
+			update["package_expire_time"] = nil
 		}
-		update["package_id"] = pkgID
 	}
 	if p.UserQuota != nil {
 		// 用户数上限只增不减：不允许调低到当前已开用户数以下

go/controllers/platform_tenant_package.go

@@ -99,6 +99,7 @@ type tenantPackagePayload struct {
 	Code           string   `json:"code"`
 	Description    string   `json:"description"`
 	Price          *float64 `json:"price"`
+	DurationDays   *int     `json:"duration_days"`
 	UserQuota      *int     `json:"user_quota"`
 	ExtraUserPrice *float64 `json:"extra_user_price"`
 	IsDefault      *int8    `json:"is_default"`
@@ -108,6 +109,14 @@ type tenantPackagePayload struct {
 	Modules        []string `json:"modules"`
 }
 
+// normalizePackageDuration 套餐有效时长（天）规范化：<=0 时按 365（年付）
+func normalizePackageDuration(v *int) int {
+	if v == nil || *v <= 0 {
+		return services.DefaultPackageDurationDays
+	}
+	return *v
+}
+
 // loadPackageModules 批量加载套餐模块（packageID -> 模块列表）
 func loadPackageModules(packageIDs []uint64) map[uint64][]tenantPackageModuleItem {
 	result := map[uint64][]tenantPackageModuleItem{}
@@ -180,6 +189,7 @@ func (c *PlatformTenantPackageController) GetPackageList() {
 			"code":             r.Code,
 			"description":      r.Description,
 			"price":            r.Price,
+			"duration_days":    r.DurationDays,
 			"user_quota":       r.UserQuota,
 			"extra_user_price": r.ExtraUserPrice,
 			"is_default":       r.IsDefault,
@@ -235,6 +245,7 @@ func (c *PlatformTenantPackageController) GetPackageSelectList() {
 			"code":             r.Code,
 			"description":      r.Description,
 			"price":            r.Price,
+			"duration_days":    r.DurationDays,
 			"user_quota":       r.UserQuota,
 			"extra_user_price": r.ExtraUserPrice,
 			"is_default":       r.IsDefault,
@@ -267,6 +278,27 @@ func (c *PlatformTenantPackageController) GetPackageDetail() {
 	c.jsonOK(tenantPackageDTO{SystemTenantPackage: row, Modules: modules}, "获取成功")
 }
 
+// GetPurchaseURL GET /platform/tenantPackage/purchaseUrl
+// 套餐购买链接：租户端未开通功能卡片「购买」按钮的跳转地址
+func (c *PlatformTenantPackageController) GetPurchaseURL() {
+	c.jsonOK(map[string]interface{}{"purchase_url": services.GetPackagePurchaseURL()}, "获取成功")
+}
+
+// SavePurchaseURL POST /platform/tenantPackage/purchaseUrl
+func (c *PlatformTenantPackageController) SavePurchaseURL() {
+	var p struct {
+		PurchaseURL string `json:"purchase_url"`
+	}
+	if !c.readBody(&p) {
+		return
+	}
+	if err := services.SavePackagePurchaseURL(p.PurchaseURL); err != nil {
+		c.jsonErr(500, 500, "保存失败："+err.Error())
+		return
+	}
+	c.jsonOK(nil, "保存成功")
+}
+
 // GetModuleOptions GET /platform/tenantPackage/moduleOptions
 // 可加入套餐的功能模块清单（取 yz_system_modules 中启用且未删除的模块）
 func (c *PlatformTenantPackageController) GetModuleOptions() {
@@ -365,6 +397,7 @@ func (c *PlatformTenantPackageController) CreatePackage() {
 		Code:           p.Code,
 		Description:    strings.TrimSpace(p.Description),
 		Price:          valueFloat(p.Price, 0),
+		DurationDays:   normalizePackageDuration(p.DurationDays),
 		UserQuota:      valueInt(p.UserQuota, services.DefaultTenantUserQuota),
 		ExtraUserPrice: valueFloat(p.ExtraUserPrice, services.DefaultTenantExtraUserPrice),
 		IsDefault:      valueInt8(p.IsDefault, 0),
@@ -436,6 +469,9 @@ func (c *PlatformTenantPackageController) EditPackage() {
 	if p.Price != nil {
 		update["price"] = *p.Price
 	}
+	if p.DurationDays != nil {
+		update["duration_days"] = normalizePackageDuration(p.DurationDays)
+	}
 	if p.UserQuota != nil {
 		quota := *p.UserQuota
 		if quota <= 0 {
@@ -718,6 +754,9 @@ func (c *PlatformTenantPackageController) GetTenantQuotaInfo() {
 		"used":                info.Used,
 		"remaining":           info.Remaining,
 		"extra_user_price":    info.ExtraUserPrice,
+		"duration_days":       info.DurationDays,
+		"package_expire_time": info.PackageExpireTime,
+		"days_remaining":      info.DaysRemaining,
 		"quota_packages":      quotaPackages,
 	}, "获取成功")
 }

go/docs/sql/alter_tenant_package_billing.sql

@@ -0,0 +1,14 @@
+-- 租户套餐按年计费（元/年）+ 到期自动切换基础套餐
+-- 1) 套餐表增加有效时长（天），365 = 按年计费；2) 租户表增加套餐到期时间
+
+-- yz_system_tenant_package 增加 duration_days
+SET @tbl := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_system_tenant_package');
+SET @col := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_system_tenant_package' AND COLUMN_NAME = 'duration_days');
+SET @ddl := IF(@tbl > 0 AND @col = 0, 'ALTER TABLE `yz_system_tenant_package` ADD COLUMN `duration_days` int(11) NOT NULL DEFAULT 365 COMMENT ''套餐有效时长（天），365=按年计费；到期后租户自动切换基础套餐''', 'DO 0');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+-- yz_system_tenant 增加 package_expire_time
+SET @tbl := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_system_tenant');
+SET @col := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_system_tenant' AND COLUMN_NAME = 'package_expire_time');
+SET @ddl := IF(@tbl > 0 AND @col = 0, 'ALTER TABLE `yz_system_tenant` ADD COLUMN `package_expire_time` datetime NULL COMMENT ''套餐到期时间（NULL-永久有效）；超过时效自动切换基础套餐''', 'DO 0');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;

go/docs/sql/create_platform_product_pricing.sql

@@ -0,0 +1,91 @@
+-- =============================================================
+-- 产品定价（platform「基础设置 → 产品定价」）
+--
+-- 业务说明：
+--   1. 产品（yz_platform_product）：平台对外售卖的功能产品，如「进销存 ERP」「CRM 客户管理」。
+--      仅维护：产品名称、产品编码、价格、关联功能（module_code）、上下架状态。
+--   2. 功能节点（yz_platform_product_feature）：产品的功能树，支持父子层级（pid）。
+--      购买页按树形展示产品包含的功能清单。
+--   3. 购买订单（yz_platform_product_order）：租户下单记录。
+--      在线支付走 /backend/payment/create；未配置支付渠道时可先下单，由平台在订单里手动开通。
+--
+-- 本脚本可重复执行：建表用 IF NOT EXISTS，补列做存在性判断，预置数据做存在性判断。
+-- 运行：mysql --default-character-set=utf8mb4 -h<host> -P<port> -u<user> -p <db> < create_platform_product_pricing.sql
+-- =============================================================
+
+-- 1) 产品表
+CREATE TABLE IF NOT EXISTS `yz_platform_product` (
+  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '自增主键ID',
+  `code` varchar(64) NOT NULL DEFAULT '' COMMENT '产品编码（唯一，建议与功能模块 code 一致，如 erp/crm）',
+  `name` varchar(128) NOT NULL DEFAULT '' COMMENT '产品名称',
+  `price` decimal(10,2) NOT NULL DEFAULT 0.00 COMMENT '产品价格（元）',
+  `module_code` varchar(64) NOT NULL DEFAULT '' COMMENT '关联功能模块编码 yz_system_modules(code)',
+  `sort` int(11) NOT NULL DEFAULT 0 COMMENT '排序号，越小越靠前',
+  `status` tinyint(4) NOT NULL DEFAULT 1 COMMENT '状态：1上架 0下架',
+  `remark` varchar(255) NOT NULL DEFAULT '' COMMENT '备注',
+  `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `update_time` datetime DEFAULT NULL,
+  `delete_time` datetime DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  KEY `idx_code` (`code`, `delete_time`),
+  KEY `idx_delete_time` (`delete_time`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='产品定价-产品表';
+
+-- 2) 产品功能节点表（树形，pid=0 为顶级）
+CREATE TABLE IF NOT EXISTS `yz_platform_product_feature` (
+  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '自增主键ID',
+  `product_id` bigint(20) NOT NULL DEFAULT 0 COMMENT '产品ID 关联 yz_platform_product(id)',
+  `pid` bigint(20) NOT NULL DEFAULT 0 COMMENT '上级节点ID，0=顶级节点',
+  `title` varchar(128) NOT NULL DEFAULT '' COMMENT '功能节点标题',
+  `description` varchar(500) NOT NULL DEFAULT '' COMMENT '功能节点说明',
+  `sort` int(11) NOT NULL DEFAULT 0 COMMENT '排序号，越小越靠前',
+  `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  KEY `idx_product_id` (`product_id`),
+  KEY `idx_pid` (`pid`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='产品定价-产品功能节点表（树形）';
+
+-- 3) 产品购买订单表
+CREATE TABLE IF NOT EXISTS `yz_platform_product_order` (
+  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT '自增主键ID',
+  `order_no` varchar(40) NOT NULL DEFAULT '' COMMENT '业务订单号',
+  `tid` bigint(20) NOT NULL DEFAULT 0 COMMENT '租户ID',
+  `tenant_name` varchar(128) NOT NULL DEFAULT '' COMMENT '租户名称（快照）',
+  `product_id` bigint(20) NOT NULL DEFAULT 0 COMMENT '产品ID',
+  `product_code` varchar(64) NOT NULL DEFAULT '' COMMENT '产品编码（快照）',
+  `product_name` varchar(128) NOT NULL DEFAULT '' COMMENT '产品名称（快照）',
+  `amount` decimal(10,2) NOT NULL DEFAULT 0.00 COMMENT '订单金额（元）',
+  `package_id` bigint(20) NOT NULL DEFAULT 0 COMMENT '购买后绑定的套餐ID（快照）',
+  `pay_no` varchar(40) NOT NULL DEFAULT '' COMMENT '支付单号 yz_platform_payment_order(pay_no)',
+  `channel` varchar(32) NOT NULL DEFAULT '' COMMENT '支付渠道：wechat/alipay/... 空=线下',
+  `status` varchar(20) NOT NULL DEFAULT 'pending' COMMENT 'pending待支付 paid已支付 activated已开通 closed已关闭',
+  `activate_time` datetime DEFAULT NULL COMMENT '开通时间',
+  `remark` varchar(255) NOT NULL DEFAULT '' COMMENT '备注',
+  `create_time` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `update_time` datetime DEFAULT NULL,
+  `delete_time` datetime DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `uk_order_no` (`order_no`),
+  KEY `idx_tid` (`tid`),
+  KEY `idx_status` (`status`),
+  KEY `idx_delete_time` (`delete_time`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='产品定价-购买订单表';
+
+-- 4) 兼容旧结构：历史库已建过产品表时补齐/清理字段
+SET @tbl := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_platform_product');
+SET @col := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_platform_product' AND COLUMN_NAME = 'price');
+SET @ddl := IF(@tbl > 0 AND @col = 0, 'ALTER TABLE `yz_platform_product` ADD COLUMN `price` decimal(10,2) NOT NULL DEFAULT 0.00 COMMENT ''产品价格（元）'' AFTER `name`', 'DO 0');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+SET @tbl := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_platform_product_feature');
+SET @col := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'yz_platform_product_feature' AND COLUMN_NAME = 'pid');
+SET @ddl := IF(@tbl > 0 AND @col = 0, 'ALTER TABLE `yz_platform_product_feature` ADD COLUMN `pid` bigint(20) NOT NULL DEFAULT 0 COMMENT ''上级节点ID，0=顶级节点'' AFTER `product_id`', 'DO 0');
+PREPARE stmt FROM @ddl; EXECUTE stmt; DEALLOCATE PREPARE stmt;
+
+-- 5) 平台端菜单：基础设置 → 产品定价（仅平台端可见）
+--    pid=17 为「基础设置」菜单；若环境中 17 不是基础设置，请在平台端「菜单管理」里手工挂载本页面：
+--    组件路径 /basicSettings/pricing/index.vue，路径 /basicSettings/pricing
+INSERT INTO `yz_system_menu` (`pid`, `title`, `path`, `component_path`, `icon`, `sort`, `status`, `is_visible`, `views`, `type`, `permission`, `creater`, `remark`, `create_time`, `update_time`)
+SELECT 17, '产品定价', '/basicSettings/pricing', '/basicSettings/pricing/index.vue', 'Goods', 5, 1, 1, '[1]', 2, '', 'system', '产品定价：产品与功能节点树', NOW(), NOW()
+ WHERE NOT EXISTS (SELECT 1 FROM (SELECT `id` FROM `yz_system_menu` WHERE `path` = '/basicSettings/pricing' AND `delete_time` IS NULL) t)
+   AND EXISTS (SELECT 1 FROM (SELECT `id` FROM `yz_system_menu` WHERE `id` = 17 AND `delete_time` IS NULL) t2);

go/models/init.go

@@ -40,6 +40,10 @@ func Init(_ string) {
 		new(SystemTenantPackageModule),
 		new(SystemTenantUserQuotaPackage),
 		new(SystemTenantQuotaOrder),
+		// 产品定价（docs/sql/create_platform_product_pricing.sql）
+		new(PlatformProduct),
+		new(PlatformProductFeature),
+		new(PlatformProductOrder),
 		new(BackendOrganization),
 		new(BackendEmployee),
 		new(BackendPosition),

go/models/platform_product.go

@@ -0,0 +1,69 @@
+package models
+
+import "time"
+
+// =============================================================
+// 产品定价模型（表结构见 docs/sql/create_platform_product_pricing.sql）
+//   产品（名称/编码/价格/关联功能/上下架） -> 功能节点树 -> 购买订单
+// =============================================================
+
+// PlatformProduct 产品 yz_platform_product
+type PlatformProduct struct {
+	ID         uint64     `orm:"column(id);pk;auto" json:"id"`
+	Code       string     `orm:"column(code);size(64)" json:"code"`
+	Name       string     `orm:"column(name);size(128)" json:"name"`
+	Price      float64    `orm:"column(price);digits(10);decimals(2)" json:"price"`
+	ModuleCode string     `orm:"column(module_code);size(64)" json:"module_code"`
+	Sort       int        `orm:"column(sort);default(0)" json:"sort"`
+	Status     int8       `orm:"column(status);default(1)" json:"status"`
+	Remark     string     `orm:"column(remark);size(255)" json:"remark"`
+	CreateTime time.Time  `orm:"column(create_time);type(datetime);auto_now_add" json:"create_time"`
+	UpdateTime *time.Time `orm:"column(update_time);type(datetime);null" json:"update_time"`
+	DeleteTime *time.Time `orm:"column(delete_time);type(datetime);null" json:"delete_time"`
+}
+
+func (m *PlatformProduct) TableName() string { return "yz_platform_product" }
+
+// PlatformProductFeature 产品功能节点（树形，pid=0 为顶级） yz_platform_product_feature
+type PlatformProductFeature struct {
+	ID          uint64    `orm:"column(id);pk;auto" json:"id"`
+	ProductID   uint64    `orm:"column(product_id)" json:"product_id"`
+	Pid         uint64    `orm:"column(pid)" json:"pid"`
+	Title       string    `orm:"column(title);size(128)" json:"title"`
+	Description string    `orm:"column(description);size(500)" json:"description"`
+	Sort        int       `orm:"column(sort);default(0)" json:"sort"`
+	CreateTime  time.Time `orm:"column(create_time);type(datetime);auto_now_add" json:"create_time"`
+}
+
+func (m *PlatformProductFeature) TableName() string { return "yz_platform_product_feature" }
+
+// 购买订单状态
+const (
+	ProductOrderStatusPending   = "pending"   // 待支付
+	ProductOrderStatusPaid      = "paid"      // 已支付（待开通）
+	ProductOrderStatusActivated = "activated" // 已开通
+	ProductOrderStatusClosed    = "closed"    // 已关闭
+)
+
+// PlatformProductOrder 产品购买订单 yz_platform_product_order
+type PlatformProductOrder struct {
+	ID          uint64     `orm:"column(id);pk;auto" json:"id"`
+	OrderNo     string     `orm:"column(order_no);size(40)" json:"order_no"`
+	Tid         uint64     `orm:"column(tid)" json:"tid"`
+	TenantName  string     `orm:"column(tenant_name);size(128)" json:"tenant_name"`
+	ProductID   uint64     `orm:"column(product_id)" json:"product_id"`
+	ProductCode string     `orm:"column(product_code);size(64)" json:"product_code"`
+	ProductName string     `orm:"column(product_name);size(128)" json:"product_name"`
+	Amount      float64    `orm:"column(amount);digits(10);decimals(2)" json:"amount"`
+	PackageID   uint64     `orm:"column(package_id)" json:"package_id"`
+	PayNo       string     `orm:"column(pay_no);size(40)" json:"pay_no"`
+	Channel     string     `orm:"column(channel);size(32)" json:"channel"`
+	Status      string     `orm:"column(status);size(20);default(pending)" json:"status"`
+	ActivateTime *time.Time `orm:"column(activate_time);type(datetime);null" json:"activate_time"`
+	Remark      string     `orm:"column(remark);size(255)" json:"remark"`
+	CreateTime  time.Time  `orm:"column(create_time);type(datetime);auto_now_add" json:"create_time"`
+	UpdateTime  *time.Time `orm:"column(update_time);type(datetime);null" json:"update_time"`
+	DeleteTime  *time.Time `orm:"column(delete_time);type(datetime);null" json:"delete_time"`
+}
+
+func (m *PlatformProductOrder) TableName() string { return "yz_platform_product_order" }

go/models/system_tenant.go

@@ -15,6 +15,8 @@ type SystemTenant struct {
 	Status          int8       `orm:"column(status);default(1)" json:"status"`
 	// PackageID 套餐ID：关联 yz_system_tenant_package(id)，0 表示未绑定（视为默认套餐）
 	PackageID uint64 `orm:"column(package_id);default(0)" json:"package_id"`
+	// PackageExpireTime 套餐到期时间（NULL-永久有效）；超过时效自动切换基础套餐
+	PackageExpireTime *time.Time `orm:"column(package_expire_time);type(datetime);null" json:"package_expire_time"`
 	// UserQuota 用户数上限：默认 20，增购后累加。租户用户数达到上限后不允许再新增账号。
 	UserQuota  int        `orm:"column(user_quota);default(20)" json:"user_quota"`
 	Remark     *string    `orm:"column(remark);size(512);null" json:"remark"`

go/models/system_tenant_package.go

@@ -9,7 +9,8 @@ type SystemTenantPackage struct {
 	Name           string     `orm:"column(name);size(64)" json:"name"`
 	Code           string     `orm:"column(code);size(64)" json:"code"`
 	Description    string     `orm:"column(description);size(500)" json:"description"`
-	Price          float64    `orm:"column(price);digits(10);decimals(2)" json:"price"`
+	Price          float64    `orm:"column(price);digits(10);decimals(2)" json:"price"` // 套餐售价（元/年，按有效时长一次性计费）
+	DurationDays   int        `orm:"column(duration_days);default(365)" json:"duration_days"` // 套餐有效时长（天），365=按年计费；到期后租户自动切换基础套餐
 	UserQuota      int        `orm:"column(user_quota);default(20)" json:"user_quota"`
 	ExtraUserPrice float64    `orm:"column(extra_user_price);digits(10);decimals(2)" json:"extra_user_price"`
 	IsDefault      int8       `orm:"column(is_default);default(0)" json:"is_default"`

go/routers/backend/backend.go

@@ -12,6 +12,16 @@ func Register() {
 	RegisterAuthRoutes()
 	RegisterRoleRoutes()
 	RegisterPaymentRoutes()
+	RegisterProductRoutes()
+}
+
+// RegisterProductRoutes 注册租户端「产品购买」路由。
+func RegisterProductRoutes() {
+	beego.Router("/backend/product/list", &controllers.BackendProductPurchaseController{}, "get:GetProductList")
+	beego.Router("/backend/product/detail/:code", &controllers.BackendProductPurchaseController{}, "get:GetProductDetailByCode")
+	beego.Router("/backend/product/order/create", &controllers.BackendProductPurchaseController{}, "post:CreateOrder")
+	beego.Router("/backend/product/order/status", &controllers.BackendProductPurchaseController{}, "get:GetOrderStatus")
+	beego.Router("/backend/product/order/list", &controllers.BackendProductPurchaseController{}, "get:GetMyOrders")
 }
 
 // RegisterPaymentRoutes 注册租户端支付路由（下单页 / 收银台）。

go/routers/platform/platform.go

@@ -70,6 +70,16 @@ func Register() {
 	beego.Router("/platform/tenantPackage/edit/:id", &controllers.PlatformTenantPackageController{}, "post:EditPackage")
 	beego.Router("/platform/tenantPackage/delete/:id", &controllers.PlatformTenantPackageController{}, "delete:DeletePackage")
 	beego.Router("/platform/tenantPackage/detail/:id", &controllers.PlatformTenantPackageController{}, "get:GetPackageDetail")
+	beego.Router("/platform/tenantPackage/purchaseUrl", &controllers.PlatformTenantPackageController{}, "get:GetPurchaseURL;post:SavePurchaseURL")
+
+	// 产品定价（yz_platform_product / feature / sku / order）
+	beego.Router("/platform/product/list", &controllers.PlatformProductController{}, "get:GetProductList")
+	beego.Router("/platform/product/detail/:id", &controllers.PlatformProductController{}, "get:GetProductDetail")
+	beego.Router("/platform/product/create", &controllers.PlatformProductController{}, "post:CreateProduct")
+	beego.Router("/platform/product/edit/:id", &controllers.PlatformProductController{}, "post:EditProduct")
+	beego.Router("/platform/product/delete/:id", &controllers.PlatformProductController{}, "delete:DeleteProduct")
+	beego.Router("/platform/product/orders", &controllers.PlatformProductController{}, "get:GetProductOrders")
+	beego.Router("/platform/product/order/activate/:id", &controllers.PlatformProductController{}, "post:ActivateProductOrder")
 
 	// 用户数加购规格（yz_system_tenant_user_quota_package）
 	beego.Router("/platform/tenantQuotaPackage/list", &controllers.PlatformTenantPackageController{}, "get:GetQuotaPackageList")

go/services/tenant_quota.go

@@ -2,8 +2,10 @@ package services
 
 import (
 	"errors"
+	"math"
 	"sort"
 	"strings"
+	"time"
 
 	"server/models"
 )
@@ -11,6 +13,9 @@ import (
 // DefaultTenantUserQuota 租户默认用户数上限（未配置套餐/套餐未设置时兜底）
 const DefaultTenantUserQuota = 20
 
+// DefaultPackageDurationDays 套餐默认有效时长（天）：按年计费
+const DefaultPackageDurationDays = 365
+
 // DefaultTenantExtraUserPrice 单个用户增购默认单价（元/人）
 const DefaultTenantExtraUserPrice = 200.00
 
@@ -29,7 +34,26 @@ func CountTenantUsers(tid uint64) (int, error) {
 	return int(cnt), err
 }
 
-// GetTenantPackage 获取租户生效套餐：优先取绑定套餐，未绑定/已删除时回退到默认套餐
+// PackageDurationDays 套餐有效时长（天），未配置时按 365（年付）
+func PackageDurationDays(pkg *models.SystemTenantPackage) int {
+	if pkg == nil || pkg.DurationDays <= 0 {
+		return DefaultPackageDurationDays
+	}
+	return pkg.DurationDays
+}
+
+// PackageExpireFromNow 从当前时间起算套餐到期时间
+func PackageExpireFromNow(pkg *models.SystemTenantPackage) time.Time {
+	return time.Now().AddDate(0, 0, PackageDurationDays(pkg))
+}
+
+// tenantPackageExpired 租户套餐是否已超过时效（未设置到期时间视为永久有效）
+func tenantPackageExpired(tenant *models.SystemTenant) bool {
+	return tenant.PackageExpireTime != nil && tenant.PackageExpireTime.Before(time.Now())
+}
+
+// GetTenantPackage 获取租户生效套餐：优先取绑定套餐，未绑定/已删除时回退到默认套餐。
+// 绑定套餐已超过时效时，自动切换回基础套餐并落库（到期时间清空），返回基础套餐。
 func GetTenantPackage(tid uint64) (*models.SystemTenantPackage, error) {
 	if tid == 0 {
 		return nil, errors.New("tid 不能为空")
@@ -39,6 +63,10 @@ func GetTenantPackage(tid uint64) (*models.SystemTenantPackage, error) {
 		return nil, err
 	}
 	if tenant.PackageID > 0 {
+		// 套餐到期：自动切换基础套餐（降级落库，保证只执行一次）
+		if tenantPackageExpired(&tenant) {
+			return downgradeExpiredTenantPackage(tid)
+		}
 		var pkg models.SystemTenantPackage
 		if err := models.Orm.QueryTable(new(models.SystemTenantPackage)).
 			Filter("id", tenant.PackageID).
@@ -50,6 +78,35 @@ func GetTenantPackage(tid uint64) (*models.SystemTenantPackage, error) {
 	return GetDefaultTenantPackage()
 }
 
+// GetBasicTenantPackage 获取基础套餐（code=basic；不存在时回退默认套餐）
+func GetBasicTenantPackage() (*models.SystemTenantPackage, error) {
+	var pkg models.SystemTenantPackage
+	err := models.Orm.QueryTable(new(models.SystemTenantPackage)).
+		Filter("code", "basic").
+		Filter("delete_time__isnull", true).
+		Filter("status", 1).
+		One(&pkg)
+	if err == nil {
+		return &pkg, nil
+	}
+	return GetDefaultTenantPackage()
+}
+
+// downgradeExpiredTenantPackage 套餐到期：切换基础套餐并清除到期时间，返回基础套餐
+func downgradeExpiredTenantPackage(tid uint64) (*models.SystemTenantPackage, error) {
+	basic, err := GetBasicTenantPackage()
+	if err != nil {
+		return nil, err
+	}
+	_, _ = models.Orm.QueryTable(new(models.SystemTenant)).
+		Filter("id", tid).
+		Update(map[string]interface{}{
+			"package_id":          basic.ID,
+			"package_expire_time": nil,
+		})
+	return basic, nil
+}
+
 // GetDefaultTenantPackage 获取默认套餐（is_default=1 优先，其次按排序取第一个启用套餐）
 func GetDefaultTenantPackage() (*models.SystemTenantPackage, error) {
 	var pkg models.SystemTenantPackage
@@ -160,24 +217,26 @@ func EnsureTenantUserQuota(tid, uid uint64) error {
 
 // GetTenantQuotaInfo 租户用户数使用情况
 type TenantQuotaInfo struct {
-	Tid                uint64  `json:"tid"`
-	PackageID          uint64  `json:"package_id"`
-	PackageName        string  `json:"package_name"`
-	Quota              int     `json:"quota"`
-	Used               int     `json:"used"`
-	Remaining          int     `json:"remaining"`
-	ExtraUserPrice     float64 `json:"extra_user_price"`
-	EffectivePackageID uint64  `json:"effective_package_id"`
+	Tid                uint64     `json:"tid"`
+	PackageID          uint64     `json:"package_id"`
+	PackageName        string     `json:"package_name"`
+	Quota              int        `json:"quota"`
+	Used               int        `json:"used"`
+	Remaining          int        `json:"remaining"`
+	ExtraUserPrice     float64    `json:"extra_user_price"`
+	EffectivePackageID uint64     `json:"effective_package_id"`
+	DurationDays       int        `json:"duration_days"`
+	PackageExpireTime  *time.Time `json:"package_expire_time"`
+	DaysRemaining      int        `json:"days_remaining"`
 }
 
-// GetTenantQuotaInfo 查询租户用户数使用情况（含生效套餐信息）
+// GetTenantQuotaInfo 查询租户用户数使用情况（含生效套餐信息与计费到期时间）
 func GetTenantQuotaInfo(tid uint64) (*TenantQuotaInfo, error) {
 	info := &TenantQuotaInfo{Tid: tid, Quota: DefaultTenantUserQuota, ExtraUserPrice: DefaultTenantExtraUserPrice}
 	var tenant models.SystemTenant
 	if err := models.Orm.QueryTable(new(models.SystemTenant)).Filter("id", tid).One(&tenant); err != nil {
 		return nil, err
 	}
-	info.PackageID = tenant.PackageID
 	if tenant.UserQuota > 0 {
 		info.Quota = tenant.UserQuota
 	}
@@ -190,13 +249,29 @@ func GetTenantQuotaInfo(tid uint64) (*TenantQuotaInfo, error) {
 	if info.Remaining < 0 {
 		info.Remaining = 0
 	}
+	// 生效套餐（到期会自动降级基础套餐并落库）
 	if pkg, err := GetTenantPackage(tid); err == nil && pkg != nil {
 		info.EffectivePackageID = pkg.ID
 		info.PackageName = pkg.Name
+		info.DurationDays = PackageDurationDays(pkg)
 		if pkg.ExtraUserPrice > 0 {
 			info.ExtraUserPrice = pkg.ExtraUserPrice
 		}
 	}
+	// 重新读取租户绑定信息（GetTenantPackage 可能已触发到期降级落库）
+	var fresh models.SystemTenant
+	if e := models.Orm.QueryTable(new(models.SystemTenant)).Filter("id", tid).One(&fresh); e == nil {
+		tenant = fresh
+	}
+	info.PackageID = tenant.PackageID
+	info.PackageExpireTime = tenant.PackageExpireTime
+	if tenant.PackageExpireTime != nil {
+		remain := int(math.Ceil(time.Until(*tenant.PackageExpireTime).Hours() / 24))
+		if remain < 0 {
+			remain = 0
+		}
+		info.DaysRemaining = remain
+	}
 	return info, nil
 }
 
@@ -223,7 +298,10 @@ func IncreaseTenantQuota(tid uint64, count int) (int, int, error) {
 	return before, after, nil
 }
 
-// ApplyPackageToTenant 为租户绑定套餐：同步套餐包含的用户数（不低于当前已开用户数，且不降低已有上限）
+// ApplyPackageToTenant 为租户绑定/续费套餐：
+//   - 同步套餐包含的用户数（不低于当前已开用户数，且不降低已有上限，syncQuota=true 时）
+//   - 按套餐有效时长（duration_days，默认 365 天 = 年付）设置计费到期时间；
+//     同套餐未到期时再次绑定视为续费，在原到期时间上顺延
 func ApplyPackageToTenant(tid, packageID uint64, syncQuota bool) (int, error) {
 	if tid == 0 || packageID == 0 {
 		return 0, errors.New("参数错误")
@@ -235,14 +313,14 @@ func ApplyPackageToTenant(tid, packageID uint64, syncQuota bool) (int, error) {
 		One(&pkg); err != nil {
 		return 0, errors.New("套餐不存在")
 	}
+	var tenant models.SystemTenant
+	if err := models.Orm.QueryTable(new(models.SystemTenant)).Filter("id", tid).One(&tenant); err != nil {
+		return 0, errors.New("租户不存在")
+	}
 
 	update := map[string]interface{}{"package_id": packageID}
-	newQuota := 0
+	newQuota := tenant.UserQuota
 	if syncQuota {
-		var tenant models.SystemTenant
-		if err := models.Orm.QueryTable(new(models.SystemTenant)).Filter("id", tid).One(&tenant); err != nil {
-			return 0, errors.New("租户不存在")
-		}
 		current := tenant.UserQuota
 		if current <= 0 {
 			current = DefaultTenantUserQuota
@@ -258,6 +336,13 @@ func ApplyPackageToTenant(tid, packageID uint64, syncQuota bool) (int, error) {
 		update["user_quota"] = newQuota
 	}
 
+	// 计费时效：同套餐未到期续费 → 从原到期时间顺延；换套餐/已到期 → 从当前时间起算
+	base := time.Now()
+	if tenant.PackageID == packageID && tenant.PackageExpireTime != nil && tenant.PackageExpireTime.After(base) {
+		base = *tenant.PackageExpireTime
+	}
+	update["package_expire_time"] = base.AddDate(0, 0, PackageDurationDays(&pkg))
+
 	if _, err := models.Orm.QueryTable(new(models.SystemTenant)).
 		Filter("id", tid).
 		Update(update); err != nil {
@@ -325,6 +410,95 @@ func FilterMenusByTenantModules(menus []models.SystemMenu, allModules []models.S
 	return out
 }
 
+// MarkMenusLockedByTenantModules 按租户套餐标记未开通模块的菜单：菜单保留，返回锁定菜单ID集合。
+// lockedIDs 包含未开通模块对应的菜单及其全部后代菜单ID，供前端展示锁定态（而非直接剔除导致 404）。
+func MarkMenusLockedByTenantModules(menus []models.SystemMenu, allModules []models.SystemModules, allowedCodes map[string]bool) ([]models.SystemMenu, map[uint64]bool) {
+	lockedIDs := map[uint64]bool{}
+	if len(menus) == 0 || len(allModules) == 0 {
+		return menus, lockedIDs
+	}
+	sorted := sortModulesByPathDesc(allModules)
+	kept := make([]models.SystemMenu, 0, len(menus))
+	for _, m := range menus {
+		path := ""
+		if m.Path != nil {
+			path = *m.Path
+		}
+		code, ok := ownerModuleCode(sorted, path)
+		if ok && !allowedCodes[code] {
+			lockedIDs[m.ID] = true
+		}
+		kept = append(kept, m)
+	}
+	if len(lockedIDs) == 0 {
+		return kept, lockedIDs
+	}
+	// 锁定传递给所有后代菜单
+	childrenOf := map[uint64][]uint64{}
+	for _, m := range kept {
+		if m.Pid > 0 {
+			pid := uint64(m.Pid)
+			childrenOf[pid] = append(childrenOf[pid], m.ID)
+		}
+	}
+	queue := make([]uint64, 0, len(lockedIDs))
+	for id := range lockedIDs {
+		queue = append(queue, id)
+	}
+	for len(queue) > 0 {
+		id := queue[0]
+		queue = queue[1:]
+		for _, child := range childrenOf[id] {
+			if !lockedIDs[child] {
+				lockedIDs[child] = true
+				queue = append(queue, child)
+			}
+		}
+	}
+	return kept, lockedIDs
+}
+
+// PackagePurchaseURLCode 平台通用配置（yz_platform_normal_setting）中「套餐购买链接」的配置 code
+const PackagePurchaseURLCode = "package_purchase_url"
+
+// GetPackagePurchaseURL 读取平台配置的套餐购买链接。
+// 租户端 home 页未开通（锁定）功能卡片的「购买」按钮跳转到该地址；未配置时返回空串。
+func GetPackagePurchaseURL() string {
+	var s models.PlatformNormalSetting
+	if err := models.Orm.QueryTable(new(models.PlatformNormalSetting)).
+		Filter("code", PackagePurchaseURLCode).
+		Filter("delete_time__isnull", true).
+		One(&s); err != nil {
+		return ""
+	}
+	return strings.TrimSpace(s.Value)
+}
+
+// SavePackagePurchaseURL 保存平台配置的套餐购买链接（不存在则创建）
+func SavePackagePurchaseURL(url string) error {
+	url = strings.TrimSpace(url)
+	var s models.PlatformNormalSetting
+	err := models.Orm.QueryTable(new(models.PlatformNormalSetting)).
+		Filter("code", PackagePurchaseURLCode).
+		Filter("delete_time__isnull", true).
+		One(&s)
+	if err != nil {
+		s = models.PlatformNormalSetting{
+			Name:   "套餐购买链接",
+			Code:   PackagePurchaseURLCode,
+			Value:  url,
+			Remark: "租户端未开通功能卡片「购买」按钮跳转地址",
+		}
+		_, err = models.Orm.Insert(&s)
+		return err
+	}
+	now := time.Now()
+	s.Value = url
+	s.UpdateTime = &now
+	_, err = models.Orm.Update(&s)
+	return err
+}
+
 // ListEnabledModules 获取全部启用且未删除的模块（用于菜单归属判定）
 func ListEnabledModules() ([]models.SystemModules, error) {
 	var rows []models.SystemModules