feat(distribution): 分站可下调收号比例且不超过主站上限

让分销站能按自身能力下调收号比例扩大利润，同时把主站回收比例作为硬边界，避免分站把比例加得比主站更高。

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/internal/model/distribution.go

@@ -17,6 +17,7 @@ type DistributionSite struct {
 	FooterInfoJSON        string    `gorm:"type:text" json:"footer_info_json"`
 	DefaultSupportGroupID *uint64   `gorm:"index" json:"default_support_group_id,omitempty"`
 	ListingQrcodeURL      string    `gorm:"size:512;not null;default:''" json:"listing_qrcode_url"`
+	ReceiveRatioDelta     float64   `gorm:"type:decimal(10,2);not null;default:0" json:"receive_ratio_delta"`
 	TaxEnabled            bool      `gorm:"not null;default:false" json:"tax_enabled"`
 	TaxRateBPS            int64     `gorm:"not null;default:100" json:"tax_rate_bps"`
 	SettlementHoldDays    int       `gorm:"not null;default:7" json:"settlement_hold_days"`

backend/internal/modules/distribution/dto.go

@@ -16,6 +16,7 @@ type SiteDTO struct {
 	FooterInfoJSON        string    `json:"footer_info_json"`
 	DefaultSupportGroupID *uint64   `json:"default_support_group_id,omitempty"`
 	ListingQrcodeURL      string    `json:"listing_qrcode_url"`
+	ReceiveRatioDelta     float64   `json:"receive_ratio_delta"`
 	TaxEnabled            bool      `json:"tax_enabled"`
 	TaxRateBPS            int64     `json:"tax_rate_bps"`
 	SettlementHoldDays    int       `json:"settlement_hold_days"`
@@ -24,32 +25,34 @@ type SiteDTO struct {
 }
 
 type CreateSiteRequest struct {
-	SiteCode              string  `json:"site_code" binding:"required,max=64"`
-	SiteName              string  `json:"site_name" binding:"required,max=128"`
-	Domain                string  `json:"domain" binding:"required,max=255"`
-	DisplayAccountEnabled *bool   `json:"display_account_enabled"`
-	DefaultSupportGroupID *uint64 `json:"default_support_group_id"`
-	ListingQrcodeURL      *string `json:"listing_qrcode_url"`
-	TaxEnabled            *bool   `json:"tax_enabled"`
-	TaxRateBPS            *int64  `json:"tax_rate_bps"`
-	SettlementHoldDays    *int    `json:"settlement_hold_days"`
+	SiteCode              string   `json:"site_code" binding:"required,max=64"`
+	SiteName              string   `json:"site_name" binding:"required,max=128"`
+	Domain                string   `json:"domain" binding:"required,max=255"`
+	DisplayAccountEnabled *bool    `json:"display_account_enabled"`
+	DefaultSupportGroupID *uint64  `json:"default_support_group_id"`
+	ListingQrcodeURL      *string  `json:"listing_qrcode_url"`
+	ReceiveRatioDelta     *float64 `json:"receive_ratio_delta"`
+	TaxEnabled            *bool    `json:"tax_enabled"`
+	TaxRateBPS            *int64   `json:"tax_rate_bps"`
+	SettlementHoldDays    *int     `json:"settlement_hold_days"`
 }
 
 type UpdateSiteRequest struct {
-	SiteName              *string `json:"site_name"`
-	Domain                *string `json:"domain"`
-	Status                *string `json:"status"`
-	DisplayAccountEnabled *bool   `json:"display_account_enabled"`
-	DefaultSupportGroupID *uint64 `json:"default_support_group_id"`
-	ListingQrcodeURL      *string `json:"listing_qrcode_url"`
-	TaxEnabled            *bool   `json:"tax_enabled"`
-	TaxRateBPS            *int64  `json:"tax_rate_bps"`
-	SettlementHoldDays    *int    `json:"settlement_hold_days"`
-	LogoURL               *string `json:"logo_url"`
-	FaviconURL            *string `json:"favicon_url"`
-	BannersJSON           *string `json:"banners_json"`
-	AnnouncementsJSON     *string `json:"announcements_json"`
-	FooterInfoJSON        *string `json:"footer_info_json"`
+	SiteName              *string  `json:"site_name"`
+	Domain                *string  `json:"domain"`
+	Status                *string  `json:"status"`
+	DisplayAccountEnabled *bool    `json:"display_account_enabled"`
+	DefaultSupportGroupID *uint64  `json:"default_support_group_id"`
+	ListingQrcodeURL      *string  `json:"listing_qrcode_url"`
+	ReceiveRatioDelta     *float64 `json:"receive_ratio_delta"`
+	TaxEnabled            *bool    `json:"tax_enabled"`
+	TaxRateBPS            *int64   `json:"tax_rate_bps"`
+	SettlementHoldDays    *int     `json:"settlement_hold_days"`
+	LogoURL               *string  `json:"logo_url"`
+	FaviconURL            *string  `json:"favicon_url"`
+	BannersJSON           *string  `json:"banners_json"`
+	AnnouncementsJSON     *string  `json:"announcements_json"`
+	FooterInfoJSON        *string  `json:"footer_info_json"`
 }
 
 type RuleDTO struct {
@@ -244,6 +247,7 @@ type PublicSiteInfoDTO struct {
 	AnnouncementsJSON     string  `json:"announcements_json"`
 	FooterInfoJSON        string  `json:"footer_info_json"`
 	DefaultSupportGroupID *uint64 `json:"default_support_group_id,omitempty"`
+	ReceiveRatioDelta     float64 `json:"receive_ratio_delta"`
 }
 
 type UpdateAccountDisplayRequest struct {
@@ -353,26 +357,29 @@ type OnboardSiteResponse struct {
 
 // ReceivedListingDTO 是分销站点收到的账号资产信息
 type ReceivedListingDTO struct {
-	ListingID         uint64     `json:"listing_id"`
-	ListingNo         string     `json:"listing_no"`
-	SiteID            uint64     `json:"site_id"`
-	AccountID         uint64     `json:"account_id"`
-	OwnerID           uint64     `json:"owner_id"`
-	OwnerPhone        string     `json:"owner_phone"`
-	OwnerNickname     string     `json:"owner_nickname"`
-	Title             string     `json:"title"`
-	GameName          string     `json:"game_name"`
-	ServerRegion      string     `json:"server_region"`
-	LoginPlatform     string     `json:"login_platform"`
-	RankLevel         string     `json:"rank_level"`
-	HafCoinAmount     int64      `json:"haf_coin_amount"`
-	PriceCent         int64      `json:"price_cent"`
-	DepositAmountCent int64      `json:"deposit_amount_cent"`
-	Status            string     `json:"status"`
-	ReviewStatus      string     `json:"review_status"`
-	ReviewReason      string     `json:"review_reason"`
-	PublishedAt       *time.Time `json:"published_at,omitempty"`
-	CreatedAt         time.Time  `json:"created_at"`
+	ListingID            uint64     `json:"listing_id"`
+	ListingNo            string     `json:"listing_no"`
+	SiteID               uint64     `json:"site_id"`
+	AccountID            uint64     `json:"account_id"`
+	OwnerID              uint64     `json:"owner_id"`
+	OwnerPhone           string     `json:"owner_phone"`
+	OwnerNickname        string     `json:"owner_nickname"`
+	Title                string     `json:"title"`
+	GameName             string     `json:"game_name"`
+	ServerRegion         string     `json:"server_region"`
+	LoginPlatform        string     `json:"login_platform"`
+	RankLevel            string     `json:"rank_level"`
+	HafCoinAmount        int64      `json:"haf_coin_amount"`
+	SellerRatio          float64    `json:"seller_ratio"`
+	SellerTotalPriceCent int64      `json:"seller_total_price_cent"`
+	BuyerRatio           float64    `json:"buyer_ratio"`
+	PriceCent            int64      `json:"price_cent"`
+	DepositAmountCent    int64      `json:"deposit_amount_cent"`
+	Status               string     `json:"status"`
+	ReviewStatus         string     `json:"review_status"`
+	ReviewReason         string     `json:"review_reason"`
+	PublishedAt          *time.Time `json:"published_at,omitempty"`
+	CreatedAt            time.Time  `json:"created_at"`
 }
 
 type ReceivedListingQuery struct {

backend/internal/modules/distribution/handler_integration_test.go

@@ -68,6 +68,7 @@ func setupHandlerTestEnv(t *testing.T) *handlerTestEnv {
 		siteProtected.POST("/sites/:id/withdrawals", h.ApplySiteWithdrawal)
 		siteProtected.GET("/sites/:id/withdrawals", h.ListSiteWithdrawals)
 		siteProtected.GET("/sites/:id/analytics", h.GetDashboardAnalytics)
+		siteProtected.PUT("/sites/:id", h.UpdateSite)
 		siteProtected.PUT("/sites/:id/branding", h.UpdateSiteBranding)
 		siteProtected.POST("/sites/:id/sync-accounts", h.SyncSiteAccounts)
 		siteProtected.GET("/received-listings", h.ListReceivedListings)
@@ -404,6 +405,33 @@ func TestHandler_SiteOperatorEndpoints(t *testing.T) {
 		t.Fatalf("branding expected 200, got %d: %s", wBrand.Code, wBrand.Body.String())
 	}
 
+	delta := 2.5
+	wRatio := env.request("PUT", fmt.Sprintf("/api/v1/distribution/sites/%d", siteA.ID), UpdateSiteRequest{ReceiveRatioDelta: &delta}, adminA.ID, nil)
+	if wRatio.Code != http.StatusOK {
+		t.Fatalf("receive ratio expected 200, got %d: %s", wRatio.Code, wRatio.Body.String())
+	}
+	var ratioResp struct {
+		Code string  `json:"code"`
+		Data SiteDTO `json:"data"`
+	}
+	json.Unmarshal(wRatio.Body.Bytes(), &ratioResp)
+	if ratioResp.Data.ReceiveRatioDelta != 2.5 {
+		t.Fatalf("receive_ratio_delta = %v, want 2.5", ratioResp.Data.ReceiveRatioDelta)
+	}
+	hackedName := "越权改名"
+	wHackName := env.request("PUT", fmt.Sprintf("/api/v1/distribution/sites/%d", siteA.ID), UpdateSiteRequest{SiteName: &hackedName}, adminA.ID, nil)
+	if wHackName.Code != http.StatusOK {
+		t.Fatalf("operator privileged field expected 200 with ignore, got %d: %s", wHackName.Code, wHackName.Body.String())
+	}
+	json.Unmarshal(wHackName.Body.Bytes(), &ratioResp)
+	if ratioResp.Data.SiteName != siteA.SiteName {
+		t.Fatalf("operator must not rename site, got %q", ratioResp.Data.SiteName)
+	}
+	wCrossRatio := env.request("PUT", fmt.Sprintf("/api/v1/distribution/sites/%d", siteA.ID), UpdateSiteRequest{ReceiveRatioDelta: &delta}, adminB.ID, nil)
+	if wCrossRatio.Code != http.StatusForbidden {
+		t.Fatalf("cross-site receive ratio expected 403, got %d: %s", wCrossRatio.Code, wCrossRatio.Body.String())
+	}
+
 	// 6. 同步主站商品货架
 	opOwner := model.User{Phone: "13800000077", Status: "active"}
 	env.db.Create(&opOwner)

backend/internal/modules/distribution/repository.go

@@ -20,6 +20,7 @@ import (
 
 	"github.com/redis/go-redis/v9"
 	"golang.org/x/crypto/bcrypt"
+	"gorm.io/datatypes"
 	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 )
@@ -64,6 +65,13 @@ func normalizeSettlementHoldDays(days int) (int, error) {
 	return days, nil
 }
 
+func normalizeReceiveRatioDelta(delta float64) (float64, error) {
+	if delta < 0 {
+		return 0, ErrInvalidAmount
+	}
+	return listingpkg.NormalizeSiteReceiveRatioDelta(delta), nil
+}
+
 type Repository struct {
 	db            *gorm.DB
 	redis         *redis.Client
@@ -256,6 +264,13 @@ func (r *Repository) CreateSite(ctx context.Context, req CreateSiteRequest) (*Si
 	if req.ListingQrcodeURL != nil {
 		row.ListingQrcodeURL = strings.TrimSpace(*req.ListingQrcodeURL)
 	}
+	if req.ReceiveRatioDelta != nil {
+		delta, err := normalizeReceiveRatioDelta(*req.ReceiveRatioDelta)
+		if err != nil {
+			return nil, err
+		}
+		row.ReceiveRatioDelta = delta
+	}
 	if req.TaxEnabled != nil {
 		row.TaxEnabled = *req.TaxEnabled
 	}
@@ -293,6 +308,27 @@ func (r *Repository) UpdateSite(ctx context.Context, adminID, id uint64, req Upd
 		if err := r.ensureSiteAccessWithDB(ctx, tx, adminID, row.ID); err != nil {
 			return err
 		}
+		globalAccess := adminID == 0
+		if !globalAccess {
+			global, accessErr := r.hasGlobalDistributionAccessWithDB(ctx, tx, adminID)
+			if accessErr != nil {
+				return accessErr
+			}
+			globalAccess = global
+		}
+		if req.ReceiveRatioDelta != nil {
+			delta, err := normalizeReceiveRatioDelta(*req.ReceiveRatioDelta)
+			if err != nil {
+				return err
+			}
+			row.ReceiveRatioDelta = delta
+		}
+		if !globalAccess {
+			if err := tx.Save(&row).Error; err != nil {
+				return err
+			}
+			return nil
+		}
 		if req.SiteName != nil {
 			row.SiteName = strings.TrimSpace(*req.SiteName)
 		}
@@ -474,6 +510,7 @@ func siteDTO(row model.DistributionSite) SiteDTO {
 		DisplayAccountEnabled: row.DisplayAccountEnabled,
 		DefaultSupportGroupID: row.DefaultSupportGroupID,
 		ListingQrcodeURL:      row.ListingQrcodeURL,
+		ReceiveRatioDelta:     row.ReceiveRatioDelta,
 		TaxEnabled:            row.TaxEnabled,
 		TaxRateBPS:            row.TaxRateBPS,
 		SettlementHoldDays:    row.SettlementHoldDays,
@@ -2097,6 +2134,7 @@ func (r *Repository) GetPublicSiteInfo(ctx context.Context, code, domain string)
 		BannersJSON:           site.BannersJSON,
 		AnnouncementsJSON:     site.AnnouncementsJSON,
 		FooterInfoJSON:        site.FooterInfoJSON,
+		ReceiveRatioDelta:     site.ReceiveRatioDelta,
 	}
 	if r.redis != nil {
 		if bytes, err := json.Marshal(res); err == nil {
@@ -2347,28 +2385,29 @@ func (r *Repository) ListReceivedListings(ctx context.Context, adminID, siteID u
 	}
 
 	type receivedListingRow struct {
-		ID                 uint64     `gorm:"column:id"`
-		ListingNo          string     `gorm:"column:listing_no"`
-		AccountID          uint64     `gorm:"column:account_id"`
-		OwnerID            uint64     `gorm:"column:owner_id"`
-		OwnerUsername      string     `gorm:"column:owner_username"`
-		OwnerPhone         string     `gorm:"column:owner_phone"`
-		GameName           string     `gorm:"column:game_name"`
-		Title              string     `gorm:"column:title"`
-		ServerRegion       string     `gorm:"column:server_region"`
-		LoginPlatform      string     `gorm:"column:login_platform"`
-		RankLevel          string     `gorm:"column:rank_level"`
-		HafCoinAmount      int64      `gorm:"column:haf_coin_amount"`
-		PriceCent          int64      `gorm:"column:price_cent"`
-		DepositAmountCent  int64      `gorm:"column:deposit_amount_cent"`
-		Status             string     `gorm:"column:status"`
-		ReviewStatus       string     `gorm:"column:review_status"`
-		ReviewReason       string     `gorm:"column:review_reason"`
-		InTransaction      bool       `gorm:"column:in_transaction"`
-		DistributionSiteID uint64     `gorm:"column:distribution_site_id"`
-		DisplayStatus      string     `gorm:"column:display_status"`
-		CreatedAt          time.Time  `gorm:"column:created_at"`
-		PublishedAt        *time.Time `gorm:"column:published_at"`
+		ID                 uint64         `gorm:"column:id"`
+		ListingNo          string         `gorm:"column:listing_no"`
+		AccountID          uint64         `gorm:"column:account_id"`
+		OwnerID            uint64         `gorm:"column:owner_id"`
+		OwnerUsername      string         `gorm:"column:owner_username"`
+		OwnerPhone         string         `gorm:"column:owner_phone"`
+		GameName           string         `gorm:"column:game_name"`
+		Title              string         `gorm:"column:title"`
+		ServerRegion       string         `gorm:"column:server_region"`
+		LoginPlatform      string         `gorm:"column:login_platform"`
+		RankLevel          string         `gorm:"column:rank_level"`
+		HafCoinAmount      int64          `gorm:"column:haf_coin_amount"`
+		AssetSummary       datatypes.JSON `gorm:"column:asset_summary"`
+		PriceCent          int64          `gorm:"column:price_cent"`
+		DepositAmountCent  int64          `gorm:"column:deposit_amount_cent"`
+		Status             string         `gorm:"column:status"`
+		ReviewStatus       string         `gorm:"column:review_status"`
+		ReviewReason       string         `gorm:"column:review_reason"`
+		InTransaction      bool           `gorm:"column:in_transaction"`
+		DistributionSiteID uint64         `gorm:"column:distribution_site_id"`
+		DisplayStatus      string         `gorm:"column:display_status"`
+		CreatedAt          time.Time      `gorm:"column:created_at"`
+		PublishedAt        *time.Time     `gorm:"column:published_at"`
 	}
 
 	var rows []receivedListingRow
@@ -2377,6 +2416,7 @@ func (r *Repository) ListReceivedListings(ctx context.Context, adminID, siteID u
 		COALESCE(u.nickname, '') AS owner_username,
 		COALESCE(u.phone, '') AS owner_phone,
 		ga.game_name, ga.title, ga.server_region, ga.login_platform, ga.rank_level, ga.haf_coin_amount,
+		ga.asset_summary,
 		rl.price_cent, rl.deposit_amount_cent, rl.status, rl.review_status, rl.review_reason,
 		rl.in_transaction, COALESCE(rl.distribution_site_id, 0) AS distribution_site_id,
 		COALESCE(dsa.display_status, 'enabled') AS display_status,
@@ -2396,27 +2436,31 @@ func (r *Repository) ListReceivedListings(ctx context.Context, adminID, siteID u
 		if r.DisplayStatus == "disabled" {
 			status = "offline"
 		}
+		pricing := listingpkg.ReceivePricingFromAssetSummary(r.AssetSummary)
 		items = append(items, ReceivedListingDTO{
-			ListingID:         r.ID,
-			ListingNo:         r.ListingNo,
-			SiteID:            r.DistributionSiteID,
-			AccountID:         r.AccountID,
-			OwnerID:           r.OwnerID,
-			OwnerPhone:        maskedPhone,
-			OwnerNickname:     r.OwnerUsername,
-			Title:             r.Title,
-			GameName:          r.GameName,
-			ServerRegion:      r.ServerRegion,
-			LoginPlatform:     r.LoginPlatform,
-			RankLevel:         r.RankLevel,
-			HafCoinAmount:     r.HafCoinAmount,
-			PriceCent:         r.PriceCent,
-			DepositAmountCent: r.DepositAmountCent,
-			Status:            status,
-			ReviewStatus:      r.ReviewStatus,
-			ReviewReason:      r.ReviewReason,
-			PublishedAt:       r.PublishedAt,
-			CreatedAt:         r.CreatedAt,
+			ListingID:            r.ID,
+			ListingNo:            r.ListingNo,
+			SiteID:               r.DistributionSiteID,
+			AccountID:            r.AccountID,
+			OwnerID:              r.OwnerID,
+			OwnerPhone:           maskedPhone,
+			OwnerNickname:        r.OwnerUsername,
+			Title:                r.Title,
+			GameName:             r.GameName,
+			ServerRegion:         r.ServerRegion,
+			LoginPlatform:        r.LoginPlatform,
+			RankLevel:            r.RankLevel,
+			HafCoinAmount:        r.HafCoinAmount,
+			SellerRatio:          pricing.SellerRatio,
+			SellerTotalPriceCent: pricing.SellerTotalPriceCent,
+			BuyerRatio:           pricing.BuyerRatio,
+			PriceCent:            r.PriceCent,
+			DepositAmountCent:    r.DepositAmountCent,
+			Status:               status,
+			ReviewStatus:         r.ReviewStatus,
+			ReviewReason:         r.ReviewReason,
+			PublishedAt:          r.PublishedAt,
+			CreatedAt:            r.CreatedAt,
 		})
 	}
 

backend/internal/modules/distribution/repository_test.go

@@ -1,6 +1,7 @@
 package distribution
 
 import (
+	"encoding/json"
 	"errors"
 	"testing"
 	"time"
@@ -8,6 +9,7 @@ import (
 	"hfb_sys/backend/internal/database"
 	"hfb_sys/backend/internal/model"
 
+	"gorm.io/datatypes"
 	"gorm.io/gorm"
 )
 
@@ -666,7 +668,19 @@ func TestDistributionBrandingAndMarkup(t *testing.T) {
 		t.Fatalf("cleared listing_qrcode_url = %q, want empty", qrCleared.ListingQrcodeURL)
 	}
 
-	// Verify PublicSiteInfo contains branding
+	delta := 3.5
+	ratioUpdated, err := repo.UpdateSite(t.Context(), 0, site.ID, UpdateSiteRequest{ReceiveRatioDelta: &delta})
+	if err != nil {
+		t.Fatalf("UpdateSite receive ratio failed: %v", err)
+	}
+	if ratioUpdated.ReceiveRatioDelta != 3.5 {
+		t.Fatalf("receive_ratio_delta = %v, want 3.5", ratioUpdated.ReceiveRatioDelta)
+	}
+	negative := -1.0
+	if _, err := repo.UpdateSite(t.Context(), 0, site.ID, UpdateSiteRequest{ReceiveRatioDelta: &negative}); !errors.Is(err, ErrInvalidAmount) {
+		t.Fatalf("negative receive ratio err = %v, want ErrInvalidAmount", err)
+	}
+
 	pubInfo, err := repo.GetPublicSiteInfo(t.Context(), "brand_site", "")
 	if err != nil {
 		t.Fatalf("GetPublicSiteInfo failed: %v", err)
@@ -674,6 +688,9 @@ func TestDistributionBrandingAndMarkup(t *testing.T) {
 	if pubInfo.LogoURL != "https://cdn.example.com/logo.png" {
 		t.Fatalf("expected LogoURL, got: %+v", pubInfo)
 	}
+	if pubInfo.ReceiveRatioDelta != 3.5 {
+		t.Fatalf("public receive_ratio_delta = %v, want 3.5", pubInfo.ReceiveRatioDelta)
+	}
 
 	faviconOnly := "https://cdn.example.com/favicon2.ico"
 	partial, err := repo.UpdateSiteBranding(t.Context(), 0, site.ID, UpdateSiteBrandingRequest{FaviconURL: &faviconOnly})
@@ -746,12 +763,24 @@ func TestDistributionReceivedListingsAndWallet(t *testing.T) {
 		t.Fatal(err)
 	}
 
+	summary, err := json.Marshal(map[string]any{
+		"price_breakdown": map[string]any{
+			"seller_ratio":       43.0,
+			"seller_total_price": 232.6,
+			"buyer_ratio":        38.0,
+		},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
 	ga := model.GameAccount{
 		OwnerID:       user.ID,
 		GameName:      "delta_force",
 		ServerRegion:  "cn",
 		LoginPlatform: "pc",
 		Title:         "满配三角洲账号",
+		HafCoinAmount: 100_000_000,
+		AssetSummary:  datatypes.JSON(summary),
 	}
 	if err := db.Create(&ga).Error; err != nil {
 		t.Fatal(err)
@@ -786,6 +815,9 @@ func TestDistributionReceivedListingsAndWallet(t *testing.T) {
 	if item.ListingNo != "RL-99001" || item.GameName != "delta_force" || item.OwnerNickname != "seller01" {
 		t.Fatalf("unexpected received listing: %+v", item)
 	}
+	if item.SellerRatio != 43 || item.SellerTotalPriceCent != 23260 || item.BuyerRatio != 38 {
+		t.Fatalf("expected main-site receive pricing, got ratio=%v price=%d buyer=%v", item.SellerRatio, item.SellerTotalPriceCent, item.BuyerRatio)
+	}
 
 	if err := repo.UpdateReceivedListingStatus(t.Context(), 0, listing.ID, "inactive"); !errors.Is(err, ErrInvalidListingStatus) {
 		t.Fatalf("inactive status err = %v", err)

backend/internal/modules/listing/handler_user.go

@@ -42,7 +42,7 @@ func (h *Handler) Update(c *gin.Context) {
 		response.BadRequest(c, listingBindErrorMessage(err))
 		return
 	}
-	item, err := h.service.Update(c.Request.Context(), ownerID, id, req)
+	item, err := h.service.Update(c.Request.Context(), ownerID, id, req, strings.TrimSpace(c.GetHeader("X-Distribution-Site-Code")))
 	if err != nil {
 		writeListingError(c, err)
 		return

backend/internal/modules/listing/receive_pricing.go

@@ -0,0 +1,377 @@
+package listing
+
+import (
+	"context"
+	"encoding/json"
+	"math"
+	"strings"
+
+	"hfb_sys/backend/internal/modules/systemconfig"
+
+	"gorm.io/datatypes"
+)
+
+const (
+	maxAcceleratedSaleRatioIncrement = 10.0
+	maxSiteReceiveRatioDelta         = 20.0
+	minSiteReceiveRatio              = 0.01
+)
+
+// ReceivePricingView 是收号定价快照，供分销收号管理等读侧展示。
+type ReceivePricingView struct {
+	SellerRatio          float64
+	SellerTotalPriceCent int64
+	BuyerRatio           float64
+}
+
+// ReceivePricingFromAssetSummary 读取账号资产里的主站收号/挂牌比例。
+func ReceivePricingFromAssetSummary(raw datatypes.JSON) ReceivePricingView {
+	summary := decodeAssetSummary(raw)
+	breakdown := ensurePriceBreakdown(summary)
+	sellerTotal := readSummaryNumber(breakdown["seller_total_price"])
+	return ReceivePricingView{
+		SellerRatio:          readSummaryNumber(breakdown["seller_ratio"]),
+		SellerTotalPriceCent: yuanToCent(sellerTotal),
+		BuyerRatio:           readSummaryNumber(breakdown["buyer_ratio"]),
+	}
+}
+
+func (s *Service) applyMainSiteReceivePricing(ctx context.Context, req *CreateRequest, receiveRatioDelta float64, onDistributionSite bool) error {
+	if req == nil {
+		return nil
+	}
+	options, err := s.publishRatioOptions(ctx)
+	if err != nil {
+		return err
+	}
+	config, err := s.externalSalePriceConfig(ctx)
+	if err != nil {
+		return err
+	}
+	applyMainSiteReceivePricing(req, options, config, receiveRatioDelta, onDistributionSite)
+	return nil
+}
+
+func applyMainSiteReceivePricing(req *CreateRequest, options systemconfig.PublishOptionsDTO, config salePriceConfig, receiveRatioDelta float64, onDistributionSite bool) {
+	if req == nil {
+		return
+	}
+	if req.AssetSummary == nil {
+		req.AssetSummary = map[string]any{}
+	}
+	coinM := coinMFromHafCoinAmount(req.HafCoinAmount)
+	referenceRatio := calculateSellerReferenceRatio(coinM, req.AssetSummary, options)
+	if referenceRatio <= 0 {
+		return
+	}
+
+	breakdown := ensurePriceBreakdown(req.AssetSummary)
+	requestedRatio := readSummaryNumber(breakdown["seller_ratio"])
+	if requestedRatio <= 0 {
+		requestedRatio = readSummaryNumber(breakdown["accelerated_sale_ratio"])
+	}
+	sellerRatio := clampSaleRatio(referenceRatio, requestedRatio)
+	delta := NormalizeSiteReceiveRatioDelta(receiveRatioDelta)
+	if onDistributionSite {
+		sellerRatio = ApplySiteReceiveRatioDelta(referenceRatio, delta)
+	}
+	coinWan := coinM * 100
+	sellerCoinBasePrice := roundMoney(coinWan / sellerRatio)
+	consumablePrice := consumableValue(req.AssetSummary)
+	sellerTotalPrice := roundMoney(sellerCoinBasePrice + consumablePrice)
+	dailyLoss := readSummaryNumber(req.AssetSummary["daily_loss_m"])
+	pricing := calculateExternalPlatformPricing(coinM, sellerRatio, sellerCoinBasePrice, consumablePrice, config)
+
+	breakdown["seller_reference_ratio"] = referenceRatio
+	breakdown["seller_ratio"] = sellerRatio
+	breakdown["seller_coin_base_price"] = sellerCoinBasePrice
+	breakdown["seller_total_price"] = sellerTotalPrice
+	breakdown["consumable_price"] = consumablePrice
+	breakdown["daily_loss_ratio_adjustment"] = calculateDailyLossRatioAdjustment(dailyLoss)
+	breakdown["accelerated_sale_ratio"] = sellerRatio
+	breakdown["site_receive_ratio_delta"] = delta
+	breakdown["buyer_coin_base_price"] = pricing.BuyerCoinBasePrice
+	breakdown["buyer_total_price"] = pricing.BuyerTotalPrice
+	breakdown["buyer_ratio"] = pricing.BuyerRatio
+	breakdown["platform_markup_amount"] = pricing.PlatformMarkupPrice
+	breakdown["platform_rule_type"] = pricing.RuleType
+	req.AssetSummary["price_breakdown"] = breakdown
+	req.AssetSummary["publish_ratio"] = pricing.BuyerRatio
+	req.PriceCent = yuanToCent(pricing.BuyerTotalPrice)
+}
+
+// NormalizeSiteReceiveRatioDelta 将分站收号下调点数限制在 [0, 20]。
+func NormalizeSiteReceiveRatioDelta(delta float64) float64 {
+	if delta < 0 || math.IsNaN(delta) || math.IsInf(delta, 0) {
+		return 0
+	}
+	if delta > maxSiteReceiveRatioDelta {
+		return maxSiteReceiveRatioDelta
+	}
+	return roundRatio(delta)
+}
+
+// ApplySiteReceiveRatioDelta 在主站回收比例上限内下调分站收号比例。
+func ApplySiteReceiveRatioDelta(referenceRatio, delta float64) float64 {
+	if referenceRatio <= 0 {
+		return 0
+	}
+	siteRatio := roundRatio(referenceRatio - NormalizeSiteReceiveRatioDelta(delta))
+	if siteRatio < minSiteReceiveRatio {
+		return minSiteReceiveRatio
+	}
+	if siteRatio > referenceRatio {
+		return referenceRatio
+	}
+	return siteRatio
+}
+
+func (s *Service) publishRatioOptions(ctx context.Context) (systemconfig.PublishOptionsDTO, error) {
+	options := systemconfig.DefaultPublishOptions()
+	if s == nil || s.config == nil {
+		return options, nil
+	}
+	value, err := s.config.FindValue(ctx, publishOptionsConfigKey)
+	if err != nil {
+		return options, err
+	}
+	if strings.TrimSpace(value) == "" {
+		return options, nil
+	}
+	var parsed systemconfig.PublishOptionsDTO
+	if err := json.Unmarshal([]byte(value), &parsed); err != nil {
+		return options, nil
+	}
+	if len(parsed.RatioConfig.InsuranceBaseRatios) == 0 {
+		parsed.RatioConfig.InsuranceBaseRatios = options.RatioConfig.InsuranceBaseRatios
+	}
+	if len(parsed.RatioConfig.ConfigItems) == 0 {
+		parsed.RatioConfig.ConfigItems = options.RatioConfig.ConfigItems
+	}
+	if len(parsed.RatioConfig.CoinCorrections) == 0 {
+		parsed.RatioConfig.CoinCorrections = options.RatioConfig.CoinCorrections
+	}
+	if len(parsed.LevelOptions) == 0 {
+		parsed.LevelOptions = options.LevelOptions
+	}
+	if len(parsed.SkinGroups) == 0 {
+		parsed.SkinGroups = options.SkinGroups
+	}
+	return parsed, nil
+}
+
+func calculateSellerReferenceRatio(coinM float64, summary map[string]any, options systemconfig.PublishOptionsDTO) float64 {
+	if coinM <= 0 || summary == nil {
+		return 0
+	}
+	insurance := readSummaryString(summary["season_insurance"])
+	stamina := readSummaryString(summary["stamina_level"])
+	load := readSummaryString(summary["load_level"])
+	if insurance == "" || stamina == "" || load == "" {
+		return 0
+	}
+	baseRatio := insuranceBaseRatio(options.RatioConfig.InsuranceBaseRatios, insurance)
+	if baseRatio <= 0 {
+		return 0
+	}
+	dailyLoss := readSummaryNumber(summary["daily_loss_m"])
+	return baseRatio +
+		calculateRatioConfigPenalty(options, summary, stamina, load) +
+		coinCorrection(options.RatioConfig.CoinCorrections, coinM) +
+		calculateDailyLossRatioAdjustment(dailyLoss)
+}
+
+func clampSaleRatio(referenceRatio, requestedRatio float64) float64 {
+	maxRatio := roundRatio(referenceRatio + maxAcceleratedSaleRatioIncrement)
+	if requestedRatio <= 0 {
+		return referenceRatio
+	}
+	if requestedRatio < referenceRatio {
+		return referenceRatio
+	}
+	if requestedRatio > maxRatio {
+		return maxRatio
+	}
+	return roundRatio(requestedRatio)
+}
+
+func insuranceBaseRatio(items []systemconfig.PublishInsuranceBaseRatio, insurance string) float64 {
+	for _, item := range items {
+		if item.Insurance == insurance {
+			return item.Ratio
+		}
+	}
+	return 0
+}
+
+func calculateRatioConfigPenalty(options systemconfig.PublishOptionsDTO, summary map[string]any, stamina, load string) float64 {
+	selectedSkins := flattenSkinNames(summary)
+	penalty := 0.0
+	for _, item := range options.RatioConfig.ConfigItems {
+		if ratioConfigItemMatched(item, options, selectedSkins, stamina, load) {
+			continue
+		}
+		penalty += item.MissingPenalty
+	}
+	return penalty
+}
+
+func ratioConfigItemMatched(
+	item systemconfig.PublishRatioConfigItem,
+	options systemconfig.PublishOptionsDTO,
+	selectedSkins []string,
+	stamina, load string,
+) bool {
+	switch item.Kind {
+	case "skin_group":
+		return hasSelectedSkinGroup(options.SkinGroups, item.GroupKey, selectedSkins)
+	case "max_stamina":
+		return isMaxLevel(stamina, options.LevelOptions)
+	case "max_load":
+		return isMaxLevel(load, options.LevelOptions)
+	default:
+		return false
+	}
+}
+
+func hasSelectedSkinGroup(groups []systemconfig.PublishOptionGroup, groupKey string, selectedSkins []string) bool {
+	if groupKey == "" || len(selectedSkins) == 0 {
+		return false
+	}
+	for _, group := range groups {
+		if group.Key != groupKey {
+			continue
+		}
+		allowed := make(map[string]struct{}, len(group.Options))
+		for _, skin := range group.Options {
+			allowed[skin] = struct{}{}
+		}
+		for _, skin := range selectedSkins {
+			if _, ok := allowed[skin]; ok {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+func isMaxLevel(value string, levelOptions []string) bool {
+	current := readLevelNumber(value)
+	maxLevel := 0
+	for _, option := range levelOptions {
+		if n := readLevelNumber(option); n > maxLevel {
+			maxLevel = n
+		}
+	}
+	if current > 0 && maxLevel > 0 {
+		return current >= maxLevel
+	}
+	if len(levelOptions) == 0 {
+		return false
+	}
+	return value == levelOptions[len(levelOptions)-1]
+}
+
+func readLevelNumber(value string) int {
+	digits := ""
+	for _, r := range value {
+		if r >= '0' && r <= '9' {
+			digits += string(r)
+		}
+	}
+	if digits == "" {
+		return 0
+	}
+	n := 0
+	for _, r := range digits {
+		n = n*10 + int(r-'0')
+	}
+	return n
+}
+
+func coinCorrection(items []systemconfig.PublishCoinCorrection, coinM float64) float64 {
+	bestThreshold := -1.0
+	correction := 0.0
+	for _, item := range items {
+		if coinM > item.ThresholdM && item.ThresholdM >= bestThreshold {
+			bestThreshold = item.ThresholdM
+			correction = item.Correction
+		}
+	}
+	return correction
+}
+
+func calculateDailyLossRatioAdjustment(dailyLossM float64) float64 {
+	if dailyLossM <= 0 {
+		return 0
+	}
+	adjustment := (dailyLossM - 10) / 10
+	if adjustment < 0 {
+		return 0
+	}
+	floored := float64(int(adjustment))
+	if floored > 4 {
+		return 4
+	}
+	return floored
+}
+
+func coinMFromHafCoinAmount(amount int64) float64 {
+	if amount <= 0 {
+		return 0
+	}
+	return float64(amount) / 1_000_000
+}
+
+func flattenSkinNames(summary map[string]any) []string {
+	if summary == nil {
+		return nil
+	}
+	raw, ok := summary["skin_groups"]
+	if !ok || raw == nil {
+		return nil
+	}
+	var names []string
+	switch groups := raw.(type) {
+	case map[string]any:
+		for _, value := range groups {
+			names = append(names, stringSlice(value)...)
+		}
+	case map[string][]string:
+		for _, value := range groups {
+			names = append(names, value...)
+		}
+	case map[string][]any:
+		for _, value := range groups {
+			names = append(names, stringSlice(value)...)
+		}
+	}
+	return names
+}
+
+func stringSlice(value any) []string {
+	switch items := value.(type) {
+	case []string:
+		return items
+	case []any:
+		result := make([]string, 0, len(items))
+		for _, item := range items {
+			text := strings.TrimSpace(readSummaryString(item))
+			if text != "" {
+				result = append(result, text)
+			}
+		}
+		return result
+	default:
+		return nil
+	}
+}
+
+func readSummaryString(value any) string {
+	switch typed := value.(type) {
+	case string:
+		return strings.TrimSpace(typed)
+	default:
+		return ""
+	}
+}

backend/internal/modules/listing/receive_pricing_test.go

@@ -0,0 +1,117 @@
+package listing
+
+import (
+	"testing"
+
+	"hfb_sys/backend/internal/modules/systemconfig"
+)
+
+func fullReceivePricingRequest(sellerRatio float64) CreateRequest {
+	return CreateRequest{
+		HafCoinAmount: 100_000_000,
+		PriceCent:     100,
+		AssetSummary: map[string]any{
+			"season_insurance": "3*3",
+			"stamina_level":    "7级",
+			"load_level":       "7级",
+			"daily_loss_m":     10,
+			"price_breakdown": map[string]any{
+				"seller_ratio":       sellerRatio,
+				"seller_total_price": 1.0,
+				"buyer_total_price":  1.0,
+			},
+		},
+	}
+}
+
+func TestCalculateSellerReferenceRatioUsesMainSiteConfig(t *testing.T) {
+	options := systemconfig.DefaultPublishOptions()
+	summary := map[string]any{
+		"season_insurance": "3*3",
+		"stamina_level":    "7级",
+		"load_level":       "7级",
+		"daily_loss_m":     10,
+	}
+	got := calculateSellerReferenceRatio(100, summary, options)
+	if got != 43 {
+		t.Fatalf("reference ratio = %v, want 43 (base 40 + missing skin penalties 3)", got)
+	}
+}
+
+func TestApplyMainSiteReceivePricingOverwritesClientRatio(t *testing.T) {
+	req := fullReceivePricingRequest(10)
+	applyMainSiteReceivePricing(&req, systemconfig.DefaultPublishOptions(), defaultSalePriceConfig(), 0, false)
+	breakdown := ensurePriceBreakdown(req.AssetSummary)
+	if readSummaryNumber(breakdown["seller_ratio"]) != 43 {
+		t.Fatalf("seller_ratio = %v, want 43", breakdown["seller_ratio"])
+	}
+	if readSummaryNumber(breakdown["seller_reference_ratio"]) != 43 {
+		t.Fatalf("seller_reference_ratio = %v, want 43", breakdown["seller_reference_ratio"])
+	}
+	if readSummaryNumber(breakdown["seller_coin_base_price"]) != 232.6 {
+		t.Fatalf("seller_coin_base_price = %v, want 232.6", breakdown["seller_coin_base_price"])
+	}
+	if readSummaryNumber(breakdown["buyer_ratio"]) != 38 {
+		t.Fatalf("buyer_ratio = %v, want 38", breakdown["buyer_ratio"])
+	}
+	if req.PriceCent != 26320 {
+		t.Fatalf("PriceCent = %d, want 26320", req.PriceCent)
+	}
+}
+
+func TestApplyMainSiteReceivePricingKeepsAcceleratedRatioWithinMainSiteRange(t *testing.T) {
+	req := fullReceivePricingRequest(50)
+	applyMainSiteReceivePricing(&req, systemconfig.DefaultPublishOptions(), defaultSalePriceConfig(), 0, false)
+	breakdown := ensurePriceBreakdown(req.AssetSummary)
+	if readSummaryNumber(breakdown["seller_ratio"]) != 50 {
+		t.Fatalf("accelerated seller_ratio = %v, want 50", breakdown["seller_ratio"])
+	}
+	if readSummaryNumber(breakdown["seller_reference_ratio"]) != 43 {
+		t.Fatalf("seller_reference_ratio = %v, want 43", breakdown["seller_reference_ratio"])
+	}
+}
+
+func TestDistributionReceiveRatioCannotExceedMainSite(t *testing.T) {
+	req := fullReceivePricingRequest(50)
+	applyMainSiteReceivePricing(&req, systemconfig.DefaultPublishOptions(), defaultSalePriceConfig(), 0, true)
+	breakdown := ensurePriceBreakdown(req.AssetSummary)
+	if readSummaryNumber(breakdown["seller_ratio"]) != 43 {
+		t.Fatalf("distribution seller_ratio = %v, want main-site ceiling 43", breakdown["seller_ratio"])
+	}
+}
+
+func TestDistributionReceiveRatioDeltaLowersBelowMainSite(t *testing.T) {
+	req := fullReceivePricingRequest(50)
+	applyMainSiteReceivePricing(&req, systemconfig.DefaultPublishOptions(), defaultSalePriceConfig(), 3, true)
+	breakdown := ensurePriceBreakdown(req.AssetSummary)
+	if readSummaryNumber(breakdown["seller_ratio"]) != 40 {
+		t.Fatalf("distribution seller_ratio = %v, want 40 after lowering 3 points", breakdown["seller_ratio"])
+	}
+	if readSummaryNumber(breakdown["seller_reference_ratio"]) != 43 {
+		t.Fatalf("seller_reference_ratio = %v, want 43", breakdown["seller_reference_ratio"])
+	}
+	if readSummaryNumber(breakdown["site_receive_ratio_delta"]) != 3 {
+		t.Fatalf("site_receive_ratio_delta = %v, want 3", breakdown["site_receive_ratio_delta"])
+	}
+}
+
+func TestApplySiteReceiveRatioDeltaCapsAtMainSite(t *testing.T) {
+	if got := ApplySiteReceiveRatioDelta(43, -5); got != 43 {
+		t.Fatalf("negative delta must keep main-site ratio, got %v", got)
+	}
+	if got := ApplySiteReceiveRatioDelta(43, 3); got != 40 {
+		t.Fatalf("delta 3 = %v, want 40", got)
+	}
+	if got := NormalizeSiteReceiveRatioDelta(-2); got != 0 {
+		t.Fatalf("normalize negative = %v, want 0", got)
+	}
+}
+
+func TestClampSaleRatioRejectsBelowReference(t *testing.T) {
+	if got := clampSaleRatio(43, 10); got != 43 {
+		t.Fatalf("clamp below reference = %v, want 43", got)
+	}
+	if got := clampSaleRatio(43, 80); got != 53 {
+		t.Fatalf("clamp above max = %v, want 53", got)
+	}
+}

backend/internal/modules/listing/service_mutation.go

@@ -2,6 +2,7 @@ package listing
 
 import (
 	"context"
+	"strings"
 )
 
 func (s *Service) Create(ctx context.Context, ownerID uint64, req CreateRequest, siteCode ...string) (*ListingDTO, error) {
@@ -11,6 +12,14 @@ func (s *Service) Create(ctx context.Context, ownerID uint64, req CreateRequest,
 	if !req.AgreedVirtualAssetSale || !req.AgreedSellerAgreement {
 		return nil, ErrAgreementRequired
 	}
+	effectiveSiteCode := ""
+	if len(siteCode) > 0 {
+		effectiveSiteCode = strings.TrimSpace(siteCode[0])
+	}
+	delta, onDistribution := s.repo.ResolveReceiveRatioDelta(ctx, 0, effectiveSiteCode)
+	if err := s.applyMainSiteReceivePricing(ctx, &req, delta, onDistribution); err != nil {
+		return nil, err
+	}
 	rules, err := s.publishRules(ctx)
 	if err != nil {
 		return nil, err
@@ -29,17 +38,21 @@ func (s *Service) Create(ctx context.Context, ownerID uint64, req CreateRequest,
 	if err != nil {
 		return nil, err
 	}
-	effectiveSiteCode := ""
-	if len(siteCode) > 0 {
-		effectiveSiteCode = siteCode[0]
-	}
 	return s.repo.Create(ctx, ownerID, req, reviewRequired, cooldown, effectiveSiteCode)
 }
 
-func (s *Service) Update(ctx context.Context, ownerID uint64, id uint64, req UpdateRequest) (*ListingDTO, error) {
+func (s *Service) Update(ctx context.Context, ownerID uint64, id uint64, req UpdateRequest, siteCode ...string) (*ListingDTO, error) {
 	if s.repo == nil {
 		return nil, ErrDependencyUnavailable
 	}
+	effectiveSiteCode := ""
+	if len(siteCode) > 0 {
+		effectiveSiteCode = strings.TrimSpace(siteCode[0])
+	}
+	delta, onDistribution := s.repo.ResolveReceiveRatioDelta(ctx, id, effectiveSiteCode)
+	if err := s.applyMainSiteReceivePricing(ctx, &req, delta, onDistribution); err != nil {
+		return nil, err
+	}
 	rules, err := s.publishRules(ctx)
 	if err != nil {
 		return nil, err

backend/internal/modules/listing/service_test.go

@@ -1008,3 +1008,139 @@ func TestListMineSiteIsolation(t *testing.T) {
 		t.Fatalf("expected 2 listings, got %d", len(allItems))
 	}
 }
+
+func TestCreateDistributionListingUsesMainSiteReceiveRatio(t *testing.T) {
+	db := database.NewTestDB()
+	if err := database.MigrateListingLifecycleTestSchema(db); err != nil {
+		t.Fatalf("migrate err: %v", err)
+	}
+	svc := NewService(NewRepository(db, nil), stubConfigReader{})
+
+	user := model.User{Phone: "18800000021", Nickname: "分销收号卖家", RealnameStatus: "verified", Status: "active"}
+	if err := db.Create(&user).Error; err != nil {
+		t.Fatal(err)
+	}
+	site := model.DistributionSite{
+		SiteCode:              "dist_ratio_1",
+		SiteName:              "收号比例站",
+		Domain:                "ratio.example.com",
+		Status:                "active",
+		DisplayAccountEnabled: true,
+	}
+	if err := db.Create(&site).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	dto, err := svc.Create(context.Background(), user.ID, CreateRequest{
+		Title:             "分销收号商品",
+		ServerRegion:      "QQ",
+		LoginPlatform:     "PC",
+		RankLevel:         "钻石",
+		HafCoinAmount:     100_000_000,
+		PriceCent:         100,
+		DepositAmountCent: 15000,
+		ScreenshotURLS:    []string{"https://example.com/ratio.png"},
+		AssetSummary: map[string]any{
+			"fire_level":       50,
+			"season_insurance": "3*3",
+			"stamina_level":    "7级",
+			"load_level":       "7级",
+			"daily_loss_m":     10,
+			"online_time": map[string]any{
+				"start": "09:00",
+				"end":   "23:00",
+			},
+			"price_breakdown": map[string]any{
+				"seller_ratio":       10.0,
+				"seller_total_price": 1.0,
+				"buyer_total_price":  1.0,
+			},
+		},
+		AgreedVirtualAssetSale: true,
+		AgreedSellerAgreement:  true,
+	}, "dist_ratio_1")
+	if err != nil {
+		t.Fatalf("Create failed: %v", err)
+	}
+
+	pricing := ReceivePricingFromAssetSummary(mustMarshalSummary(t, dto.AssetSummary))
+	if pricing.SellerRatio != 43 {
+		t.Fatalf("distribution receive seller_ratio = %v, want 43 from main-site ratio_config", pricing.SellerRatio)
+	}
+	if pricing.SellerTotalPriceCent != 23260 {
+		t.Fatalf("seller_total_price_cent = %d, want 23260", pricing.SellerTotalPriceCent)
+	}
+	if dto.PriceCent != 26320 {
+		t.Fatalf("listing PriceCent = %d, want 26320 from main-site sale price", dto.PriceCent)
+	}
+	if dto.DistributionSiteCode != "dist_ratio_1" {
+		t.Fatalf("DistributionSiteCode = %s, want dist_ratio_1", dto.DistributionSiteCode)
+	}
+}
+
+func TestCreateDistributionListingAppliesSiteReceiveRatioDelta(t *testing.T) {
+	db := database.NewTestDB()
+	if err := database.MigrateListingLifecycleTestSchema(db); err != nil {
+		t.Fatalf("migrate err: %v", err)
+	}
+	svc := NewService(NewRepository(db, nil), stubConfigReader{})
+
+	user := model.User{Phone: "18800000022", Nickname: "分销下调卖家", RealnameStatus: "verified", Status: "active"}
+	if err := db.Create(&user).Error; err != nil {
+		t.Fatal(err)
+	}
+	site := model.DistributionSite{
+		SiteCode:              "dist_ratio_down",
+		SiteName:              "下调收号站",
+		Domain:                "ratio-down.example.com",
+		Status:                "active",
+		DisplayAccountEnabled: true,
+		ReceiveRatioDelta:     3,
+	}
+	if err := db.Create(&site).Error; err != nil {
+		t.Fatal(err)
+	}
+
+	dto, err := svc.Create(context.Background(), user.ID, CreateRequest{
+		Title:             "分销下调收号",
+		ServerRegion:      "QQ",
+		LoginPlatform:     "PC",
+		RankLevel:         "钻石",
+		HafCoinAmount:     100_000_000,
+		PriceCent:         100,
+		DepositAmountCent: 15000,
+		ScreenshotURLS:    []string{"https://example.com/ratio-down.png"},
+		AssetSummary: map[string]any{
+			"fire_level":       50,
+			"season_insurance": "3*3",
+			"stamina_level":    "7级",
+			"load_level":       "7级",
+			"daily_loss_m":     10,
+			"online_time": map[string]any{
+				"start": "09:00",
+				"end":   "23:00",
+			},
+			"price_breakdown": map[string]any{
+				"seller_ratio": 50.0,
+			},
+		},
+		AgreedVirtualAssetSale: true,
+		AgreedSellerAgreement:  true,
+	}, "dist_ratio_down")
+	if err != nil {
+		t.Fatalf("Create failed: %v", err)
+	}
+	pricing := ReceivePricingFromAssetSummary(mustMarshalSummary(t, dto.AssetSummary))
+	if pricing.SellerRatio != 40 {
+		t.Fatalf("seller_ratio = %v, want 40 after site delta 3 below main-site 43", pricing.SellerRatio)
+	}
+}
+
+func mustMarshalSummary(t *testing.T, summary map[string]any) []byte {
+	t.Helper()
+	raw, err := json.Marshal(summary)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return raw
+}

backend/internal/modules/listing/site_receive.go

@@ -0,0 +1,46 @@
+package listing
+
+import (
+	"context"
+	"strings"
+
+	"hfb_sys/backend/internal/model"
+)
+
+func (r *Repository) ReceiveRatioDeltaBySiteCode(ctx context.Context, siteCode string) float64 {
+	siteCode = strings.TrimSpace(siteCode)
+	if r == nil || r.db == nil || siteCode == "" {
+		return 0
+	}
+	var delta float64
+	_ = r.db.WithContext(ctx).Model(&model.DistributionSite{}).
+		Select("COALESCE(receive_ratio_delta, 0)").
+		Where("site_code = ? AND status = 'active'", siteCode).
+		Limit(1).
+		Scan(&delta)
+	return NormalizeSiteReceiveRatioDelta(delta)
+}
+
+func (r *Repository) ResolveReceiveRatioDelta(ctx context.Context, listingID uint64, siteCode string) (float64, bool) {
+	if code := strings.TrimSpace(siteCode); code != "" {
+		return r.ReceiveRatioDeltaBySiteCode(ctx, code), true
+	}
+	if r == nil || r.db == nil || listingID == 0 {
+		return 0, false
+	}
+	var siteID *uint64
+	if err := r.db.WithContext(ctx).Model(&model.RentalListing{}).
+		Select("distribution_site_id").
+		Where("id = ?", listingID).
+		Limit(1).
+		Scan(&siteID).Error; err != nil || siteID == nil || *siteID == 0 {
+		return 0, false
+	}
+	var delta float64
+	_ = r.db.WithContext(ctx).Model(&model.DistributionSite{}).
+		Select("COALESCE(receive_ratio_delta, 0)").
+		Where("id = ? AND status = 'active'", *siteID).
+		Limit(1).
+		Scan(&delta)
+	return NormalizeSiteReceiveRatioDelta(delta), true
+}

backend/internal/router/router.go

@@ -617,6 +617,7 @@ func New(cfg config.Config, deps Dependencies, logger *zap.Logger) *gin.Engine {
 			distributionProtectedRoutes.GET("/auth/me", distributionHandler.Me)
 			distributionProtectedRoutes.POST("/auth/logout", distributionHandler.Logout)
 			distributionProtectedRoutes.POST("/sites/:id/sync-accounts", distributionHandler.SyncSiteAccounts)
+			distributionProtectedRoutes.PUT("/sites/:id", distributionHandler.UpdateSite)
 			distributionProtectedRoutes.PUT("/sites/:id/branding", distributionHandler.UpdateSiteBranding)
 			distributionProtectedRoutes.GET("/sites/:id/wallet", distributionHandler.GetSiteWallet)
 			distributionProtectedRoutes.POST("/sites/:id/withdrawals", distributionHandler.ApplySiteWithdrawal)

backend/migrations/000070_distribution_site_receive_ratio.sql

@@ -0,0 +1,10 @@
+-- +goose Up
+
+-- 分站收号比例相对主站的下调点数。主站回收比例为上限，分站只能下调（比例更低、号主底价更高），不能高于主站。
+ALTER TABLE distribution_sites
+  ADD COLUMN receive_ratio_delta DECIMAL(10,2) NOT NULL DEFAULT 0 COMMENT '分站收号比例相对主站下调点数，0 表示与主站一致';
+
+-- +goose Down
+
+ALTER TABLE distribution_sites
+  DROP COLUMN receive_ratio_delta;