merge: refactor/v2 完全并入 develop（v2 为准，v2 血统 20+ 提交收敛为主干）

apps/api/src/product-families/family-recompute.service.spec.ts

@@ -1,6 +1,10 @@
 import { Test } from '@nestjs/testing';
 import { Prisma } from '@prisma/client';
-import { FamilyRecomputeService } from './family-recompute.service';
+import {
+  FamilyRecomputeService,
+  derivePriceMatrix,
+  memberMatrixCombos,
+} from './family-recompute.service';
 import { ProductFamiliesService } from './product-families.service';
 import { OrganizeService } from './organize.service';
 import { PrismaService } from '../prisma/prisma.service';
@@ -400,3 +404,130 @@ describe('FamilyRecomputeService', () => {
     spy.mockRestore();
   });
 });
+
+/**
+ * derivePriceMatrix 纯函数单测：选项组排序（词表序 + 未知值沉底）。
+ * 业务确认的展示顺序：printCount 单面→双面；craft 烫画→直喷→不打印；logistics 不包邮→包邮。
+ * 词表外自由文本（CUSTOM craftLabel/logisticsLabel，如"海运"）沉底，相互间保持首次遇到序。
+ */
+describe('derivePriceMatrix 选项组排序', () => {
+  const mkMember = (
+    id: number,
+    over: { tags?: string[]; source?: 'SDS' | 'CUSTOM'; craftLabel?: string | null; logisticsLabel?: string | null },
+  ) =>
+    ({
+      id: BigInt(id),
+      source: over.source ?? 'SDS',
+      originGoodTags: (over.tags ?? []).map((t) => ({ tag: { tagName: t } })),
+      variants: [],
+      craftLabel: over.craftLabel ?? null,
+      logisticsLabel: over.logisticsLabel ?? null,
+    }) as any;
+
+  it('成员顺序无关：三个维度恒为词表序', () => {
+    // 故意让"遇到序"与目标词表序全部相反（双面在前/直喷在前/不包邮在前）
+    const members = [
+      mkMember(1, { tags: ['直喷', '双面印花', '不包邮'] }),
+      mkMember(2, { tags: ['烫画', '单面印花', '包邮'] }),
+    ];
+    const m = derivePriceMatrix(members, []);
+    expect(m.printCounts).toEqual(['单面印花', '双面印花']);
+    expect(m.crafts).toEqual(['烫画', '直喷']);
+    expect(m.logistics).toEqual(['不包邮', '包邮']);
+  });
+
+  it('子集保序：只出现部分取值时相对顺序不变', () => {
+    const m = derivePriceMatrix([mkMember(1, { tags: ['直喷', '双面印花', '不包邮'] })], []);
+    expect(m.printCounts).toEqual(['双面印花']);
+    expect(m.crafts).toEqual(['直喷']);
+    expect(m.logistics).toEqual(['不包邮']);
+  });
+
+  it('未知自由文本沉底且相互保持首次遇到序', () => {
+    const members = [
+      // CUSTOM：自由文本标签 + tags 提供印花数量（无印花维度不进矩阵的既有语义）
+      mkMember(1, { source: 'CUSTOM', tags: ['双面印花'], craftLabel: '丝印', logisticsLabel: '海运' }),
+      mkMember(2, { source: 'CUSTOM', tags: ['双面印花'], craftLabel: '水洗', logisticsLabel: '空运' }),
+      mkMember(3, { tags: ['烫画', '单面印花', '包邮'] }),
+    ];
+    const m = derivePriceMatrix(members, []);
+    expect(m.printCounts).toEqual(['单面印花', '双面印花']);
+    expect(m.crafts).toEqual(['烫画', '丝印', '水洗']);
+    expect(m.logistics).toEqual(['包邮', '海运', '空运']);
+  });
+
+  it('人工覆盖新增取值参与同一排序', () => {
+    const members = [mkMember(1, { tags: ['烫画', '单面印花', '包邮'] })];
+    const overrides = [
+      {
+        sizeId: 'size_M',
+        colorId: 'color_red',
+        printCount: '四面印花',
+        craft: '丝印',
+        logistics: '海运',
+        price: '40',
+      },
+    ] as any;
+    const m = derivePriceMatrix(members, overrides);
+    expect(m.printCounts).toEqual(['单面印花', '四面印花']);
+    expect(m.crafts).toEqual(['烫画', '丝印']);
+    expect(m.logistics).toEqual(['包邮', '海运']);
+  });
+
+  it('幂等：同输入多跑两遍输出全等（含顺序），与成员遍历顺序无关', () => {
+    const members = [
+      mkMember(1, { tags: ['直喷', '双面印花', '不包邮'] }),
+      mkMember(2, { source: 'CUSTOM', tags: ['双面印花'], craftLabel: '丝印', logisticsLabel: '海运' }),
+      mkMember(3, { tags: ['烫画', '单面印花', '包邮'] }),
+    ];
+    const first = derivePriceMatrix(members, []);
+    const second = derivePriceMatrix(members, []);
+    const reversed = derivePriceMatrix([...members].reverse(), []);
+    expect(JSON.stringify(second)).toBe(JSON.stringify(first));
+    expect(JSON.stringify(reversed)).toBe(JSON.stringify(first));
+  });
+});
+
+/**
+ * 印刷工艺新增"热转印"：矩阵维度词表放开准入 + 展示序追加末尾。
+ * 自动派生规则不改 —— SDS 链接只能人工打标；不打标的链接/族零影响。
+ */
+describe('热转印工艺', () => {
+  const mkMember = (
+    id: number,
+    over: { tags?: string[]; source?: 'SDS' | 'CUSTOM'; craftLabel?: string | null; logisticsLabel?: string | null },
+  ) =>
+    ({
+      id: BigInt(id),
+      source: over.source ?? 'SDS',
+      originGoodTags: (over.tags ?? []).map((t) => ({ tag: { tagName: t } })),
+      variants: [],
+      craftLabel: over.craftLabel ?? null,
+      logisticsLabel: over.logisticsLabel ?? null,
+    }) as any;
+
+  it('memberMatrixCombos：打标热转印的链接产出矩阵组合（此前被词表过滤为空）', () => {
+    const combos = memberMatrixCombos({ tagNames: ['单面印花', '热转印', '包邮'] });
+    expect(combos).toEqual([{ printCount: '单面印花', craft: '热转印', logistics: '包邮' }]);
+  });
+
+  it('derivePriceMatrix：crafts 展示序为 烫画→直喷→不打印→热转印（词表内，不再沉底）', () => {
+    const members = [
+      mkMember(1, { tags: ['热转印', '单面印花', '包邮'] }),
+      mkMember(2, { tags: ['烫画', '单面印花', '包邮'] }),
+      mkMember(3, { tags: ['直喷', '单面印花', '不包邮'] }),
+      mkMember(4, { tags: ['不打印', '单面印花', '包邮'] }),
+    ];
+    const m = derivePriceMatrix(members, []);
+    expect(m.crafts).toEqual(['烫画', '直喷', '不打印', '热转印']);
+  });
+
+  it('词表外自由文本（丝印/水洗）仍然沉底，与热转印区分', () => {
+    const members = [
+      mkMember(1, { tags: ['热转印', '单面印花', '包邮'] }),
+      mkMember(2, { source: 'CUSTOM', tags: ['单面印花'], craftLabel: '丝印', logisticsLabel: '包邮' }),
+    ];
+    const m = derivePriceMatrix(members, []);
+    expect(m.crafts).toEqual(['热转印', '丝印']);
+  });
+});

apps/api/src/product-families/family-recompute.service.ts

@@ -66,11 +66,31 @@ type OverrideRow = Prisma.FamilyPriceOverrideGetPayload<{}>;
 /** 矩阵三个归因维度的合法取值（封闭集合，与派生标签组一致） */
 const DIM_VALUES = {
   printCount: ['单面印花', '双面印花'],
-  craft: ['烫画', '直喷', '不打印'],
+  craft: ['烫画', '直喷', '不打印', '热转印'],
   logistics: ['包邮', '不包邮'],
 } as const satisfies Record<string, readonly string[]>;
 
 type DimKey = keyof typeof DIM_VALUES;
+
+/**
+ * 选项组展示顺序（业务确认）：printCount 单面→双面；craft 烫画→直喷→不打印→热转印；logistics 不包邮→包邮。
+ * 与 DIM_VALUES 的"组合生成序"是两回事，物化前对聚合数组按此稳定排序；
+ * 词表外自由文本（CUSTOM 标签，如"海运"）沉底，相互间保持首次遇到序。
+ */
+const OPTION_DISPLAY_ORDER = {
+  printCount: ['单面印花', '双面印花'],
+  craft: ['烫画', '直喷', '不打印', '热转印'],
+  logistics: ['不包邮', '包邮'],
+} as const;
+
+function optionRank(value: string, canon: readonly string[]): number {
+  const i = canon.indexOf(value);
+  return i === -1 ? canon.length : i;
+}
+
+function sortOptions(values: string[], canon: readonly string[]): string[] {
+  return [...values].sort((a, b) => optionRank(a, canon) - optionRank(b, canon));
+}
 export interface MatrixCombo {
   printCount: string;
   craft: string;
@@ -270,9 +290,9 @@ export function derivePriceMatrix(members: Member[], overrides: OverrideRow[]):
   return {
     sizes: [...sizes.entries()].map(([key, name]) => ({ key, name })),
     colors: [...colors.entries()].map(([key, v]) => ({ key, ...v })),
-    printCounts,
-    crafts,
-    logistics: logisticsOptions,
+    printCounts: sortOptions(printCounts, OPTION_DISPLAY_ORDER.printCount),
+    crafts: sortOptions(crafts, OPTION_DISPLAY_ORDER.craft),
+    logistics: sortOptions(logisticsOptions, OPTION_DISPLAY_ORDER.logistics),
     rows,
   };
 }
@@ -330,6 +350,8 @@ export class FamilyRecomputeService {
       include: {
         originGoods: {
           where: { delisted: false },
+          // 固定遍历序：保证"首次遇到序"（未知自由文本取值的相对顺序）确定性，重算幂等
+          orderBy: { id: 'asc' },
           include: {
             detail: true,
             variants: { where: { enabled: true }, orderBy: { sortOrder: 'asc' } },

apps/api/src/public/public.service.spec.ts

@@ -650,4 +650,225 @@ describe('PublicService', () => {
       }
     });
   });
+
+  describe('getGoods tree-order sorting (国家→二级→款→priority)', () => {
+    // 结构: 国家A(sort=1)>MidA>LeafA1(sort=1, 2条goods)、LeafA2(sort=2)；国家B(sort=2)>MidB>LeafB1
+    // 期望默认顺序: A款1(priority desc) -> A款2 -> B款1；B 的 priority=99 也不能越级
+    const stamp2 = `${stamp}-treeorder`;
+    const sdsA1 = `la1-${stamp2}`;
+    const sdsA2 = `la2-${stamp2}`;
+    const sdsB1 = `lb1-${stamp2}`;
+    const trash = {
+      goodIds: [] as bigint[],
+      familyIds: [] as bigint[],
+      originGoodIds: [] as bigint[],
+      categoryIds: [] as bigint[],
+      countryIds: [] as bigint[],
+    };
+    let orderedFamilyIds: string[] = [];
+
+    beforeAll(async () => {
+      const cA = await prisma.country.create({
+        data: { countryName: `TreeOrder A ${stamp2}`, sortOrder: 1 },
+      });
+      const cB = await prisma.country.create({
+        data: { countryName: `TreeOrder B ${stamp2}`, sortOrder: 2 },
+      });
+      trash.countryIds = [cA.id, cB.id];
+      const midA = await prisma.category.create({
+        data: { categoryName: `TreeOrder MidA ${stamp2}`, sdsCategoryId: `ma-${stamp2}`, sortOrder: 1 },
+      });
+      const leafA1 = await prisma.category.create({
+        data: { categoryName: `TreeOrder LeafA1 ${stamp2}`, parentCategoryId: midA.id, sdsCategoryId: sdsA1, sortOrder: 1 },
+      });
+      const leafA2 = await prisma.category.create({
+        data: { categoryName: `TreeOrder LeafA2 ${stamp2}`, parentCategoryId: midA.id, sdsCategoryId: sdsA2, sortOrder: 2 },
+      });
+      const midB = await prisma.category.create({
+        data: { categoryName: `TreeOrder MidB ${stamp2}`, sdsCategoryId: `mb-${stamp2}`, sortOrder: 2 },
+      });
+      const leafB1 = await prisma.category.create({
+        data: { categoryName: `TreeOrder LeafB1 ${stamp2}`, parentCategoryId: midB.id, sdsCategoryId: sdsB1, sortOrder: 1 },
+      });
+      trash.categoryIds = [leafA1.id, leafA2.id, leafB1.id, midA.id, midB.id];
+
+      const mk = async (
+        countryId: bigint,
+        sdsCategoryId: string,
+        name: string,
+        priority: number,
+      ) => {
+        const og = await prisma.originGood.create({
+          data: { sdsGoodId: `to-${name}-${stamp2}`, goodName: name, sdsCategoryId },
+        });
+        trash.originGoodIds.push(og.id);
+        const fam = await prisma.productFamily.create({
+          data: { familyName: `to-fam-${name}-${stamp2}`, primaryOriginGoodId: og.id },
+        });
+        trash.familyIds.push(fam.id);
+        await prisma.originGood.update({ where: { id: og.id }, data: { familyId: fam.id } });
+        const good = await prisma.good.create({
+          data: {
+            goodName: `TO${stamp2}-${name}`,
+            originGoodId: og.id,
+            familyId: fam.id,
+            countryId,
+            categoryId: sdsCategoryId === sdsA1 ? leafA1.id : sdsCategoryId === sdsA2 ? leafA2.id : leafB1.id,
+            goodPriority: priority,
+          },
+        });
+        trash.goodIds.push(good.id);
+        return fam.id.toString();
+      };
+
+      const a1Low = await mk(cA.id, sdsA1, 'A1Low', 1);
+      const a1High = await mk(cA.id, sdsA1, 'A1High', 9);
+      const a2 = await mk(cA.id, sdsA2, 'A2', 0);
+      const b1 = await mk(cB.id, sdsB1, 'B1', 99);
+      orderedFamilyIds = [a1High, a1Low, a2, b1];
+    });
+
+    afterAll(async () => {
+      await prisma.good.deleteMany({ where: { id: { in: trash.goodIds } } }).catch(() => undefined);
+      await prisma.productFamily.deleteMany({ where: { id: { in: trash.familyIds } } }).catch(() => undefined);
+      await prisma.originGood.deleteMany({ where: { id: { in: trash.originGoodIds } } }).catch(() => undefined);
+      for (const id of trash.categoryIds) {
+        await prisma.category.delete({ where: { id } }).catch(() => undefined);
+      }
+      await prisma.country.deleteMany({ where: { id: { in: trash.countryIds } } }).catch(() => undefined);
+    });
+
+    it('DEFAULT: country > mid > leaf > priority (cross-country priority cannot jump the queue)', async () => {
+      const res = await service.getGoods({
+        page: 1,
+        pageSize: 100,
+        keyword: `TO${stamp2}`, // 唯一前缀圈定本夹具 4 条，避免全库分页截断
+      });
+      expect(res.total).toBe(4);
+      const idx = res.items.map((i) => i.goodId);
+      const pos = orderedFamilyIds.map((id) => idx.indexOf(id));
+      expect(pos.every((p) => p >= 0)).toBe(true); // 全部命中
+      expect(pos).toEqual([...pos].sort((a, b) => a - b)); // 相对有序
+      // 同款内 priority desc
+      expect(idx.indexOf(orderedFamilyIds[0])).toBeLessThan(idx.indexOf(orderedFamilyIds[1]));
+      // 款顺序：LeafA1 -> LeafA2
+      expect(idx.indexOf(orderedFamilyIds[1])).toBeLessThan(idx.indexOf(orderedFamilyIds[2]));
+      // 国家/款顺序优先于 priority：B1(99) 不能排到 A2(0) 前面
+      expect(idx.indexOf(orderedFamilyIds[2])).toBeLessThan(idx.indexOf(orderedFamilyIds[3]));
+    });
+  });
+
+  describe('family representative row consistency (列表/首页代表行对齐详情)', () => {
+    // 同族两条 Good：同 priority=10，Low 的 id 更小/createdAt 更早/价格更低/位置更好，
+    // High 的 createdAt 更新。详情代表行规则 = priority desc → createdAt desc → id asc
+    // → 详情永远取 High；列表/首页必须与详情一致，而不是随排序参数漂移到 Low。
+    const stamp3 = `${stamp}-rep`;
+    let repFamilyId: bigint;
+    let trash = {
+      goodIds: [] as bigint[],
+      positionIds: [] as bigint[],
+      originGoodIds: [] as bigint[],
+    };
+    const repLowName = `Rep Low ${stamp3}`;
+    const repHighName = `Rep High ${stamp3}`;
+
+    beforeAll(async () => {
+      const posLow = await prisma.position.create({
+        data: { indexVal: 1, countryId, categoryId },
+      });
+      const posHigh = await prisma.position.create({
+        data: { indexVal: 5, countryId, categoryId },
+      });
+      trash.positionIds = [posLow.id, posHigh.id];
+
+      const ogLow = await prisma.originGood.create({
+        data: { sdsGoodId: `rep-low-${stamp3}`, goodName: repLowName, goodPrice: 10 },
+      });
+      const ogHigh = await prisma.originGood.create({
+        data: { sdsGoodId: `rep-high-${stamp3}`, goodName: repHighName, goodPrice: 20 },
+      });
+      trash.originGoodIds = [ogLow.id, ogHigh.id];
+
+      const family = await prisma.productFamily.create({
+        data: { familyName: `rep-fam-${stamp3}`, primaryOriginGoodId: ogLow.id },
+      });
+      repFamilyId = family.id;
+      await prisma.originGood.updateMany({
+        where: { id: { in: [ogLow.id, ogHigh.id] } },
+        data: { familyId: family.id },
+      });
+
+      const gLow = await prisma.good.create({
+        data: {
+          goodName: repLowName,
+          originGoodId: ogLow.id,
+          familyId: family.id,
+          countryId,
+          categoryId,
+          goodPriority: 10,
+          positionId: posLow.id,
+          createdAt: new Date(stamp),
+        },
+      });
+      const gHigh = await prisma.good.create({
+        data: {
+          goodName: repHighName,
+          originGoodId: ogHigh.id,
+          familyId: family.id,
+          countryId,
+          categoryId,
+          goodPriority: 10,
+          positionId: posHigh.id,
+          createdAt: new Date(stamp + 60_000),
+        },
+      });
+      trash.goodIds = [gLow.id, gHigh.id];
+    });
+
+    afterAll(async () => {
+      await prisma.good.deleteMany({ where: { id: { in: trash.goodIds } } }).catch(() => undefined);
+      await prisma.position
+        .deleteMany({ where: { id: { in: trash.positionIds } } })
+        .catch(() => undefined);
+      await prisma.productFamily.delete({ where: { id: repFamilyId } }).catch(() => undefined);
+      await prisma.originGood
+        .deleteMany({ where: { id: { in: trash.originGoodIds } } })
+        .catch(() => undefined);
+    });
+
+    it('DEFAULT 列表代表行与详情一致（priority 并列时取 createdAt 最新，而非 id 最小）', async () => {
+      const detail = await service.getGood(repFamilyId.toString());
+      expect(detail.goodName).toBe(repHighName);
+
+      const list = await service.getGoods({
+        page: 1,
+        pageSize: 50,
+        keyword: 'Rep ', // 本文件夹具唯一前缀，圈定本族（goodName: Rep Low/High）
+      });
+      const ours = list.items.filter((i) => i.goodId === repFamilyId.toString());
+      expect(ours).toHaveLength(1);
+      expect(ours[0].goodName).toBe(detail.goodName);
+    });
+
+    it('PRICE_ASC 列表代表行不漂移到价格更低的成员', async () => {
+      const detail = await service.getGood(repFamilyId.toString());
+      const list = await service.getGoods({
+        page: 1,
+        pageSize: 50,
+        keyword: 'Rep ',
+        sort: 'PRICE_ASC',
+      });
+      const ours = list.items.filter((i) => i.goodId === repFamilyId.toString());
+      expect(ours).toHaveLength(1);
+      expect(ours[0].goodName).toBe(detail.goodName);
+    });
+
+    it('home-goods 代表行与详情一致（不取位置更好的成员）', async () => {
+      const detail = await service.getGood(repFamilyId.toString());
+      const home = await service.getHomeGoods({ limit: 50, countryId: countryId.toString() });
+      const ours = home.filter((h) => h.goodId === repFamilyId.toString());
+      expect(ours).toHaveLength(1);
+      expect(ours[0].goodName).toBe(detail.goodName);
+    });
+  });
 });

apps/api/src/public/public.service.ts

@@ -71,13 +71,19 @@ const PUBLIC_GOOD_LIST_INCLUDE = {
   tag: { include: { tagGroup: true } },
   position: true,
   originGood: {
-    select: { sdsGoodId: true, goodImage: true, goodPrice: true },
+    select: { sdsGoodId: true, goodImage: true, goodPrice: true, sdsCategoryId: true },
   },
   goodTags: { include: { tag: { include: { tagGroup: true } } } },
 } satisfies Prisma.GoodInclude;
 
 type PublicGoodListRow = Prisma.GoodGetPayload<{ include: typeof PUBLIC_GOOD_LIST_INCLUDE }>;
 
+interface TreeOrderMeta {
+  countryOrder: Map<string, number>;
+  /** key: origin_goods.sds_category_id → 款所属二级(c2)/款(c3) 的顺序值 */
+  leafOrder: Map<string, { c2: number; c3: number }>;
+}
+
 @Injectable()
 export class PublicService {
   constructor(private readonly prisma: PrismaService) {}
@@ -220,12 +226,7 @@ export class PublicService {
           ? [{ originGood: { goodPrice: 'desc' } }, { id: 'asc' }]
           : query.sort === 'NEWEST'
             ? [{ createdAt: 'desc' }, { id: 'asc' }]
-            : [
-                { goodPriority: 'desc' },
-                { position: { indexVal: 'asc' } },
-                { createdAt: 'desc' },
-                { id: 'asc' },
-              ];
+            : [{ id: 'asc' }]; // DEFAULT：排序移到内存做（树序，见下）
 
     // 契约族化：一族对外只暴露一条（代表行=排序第一条，goodId=族ID）；
     // 无族 Good（自定义商品）各自成一条。商品量级为百级，先取全量匹配
@@ -235,6 +236,15 @@ export class PublicService {
       include: PUBLIC_GOOD_LIST_INCLUDE,
       orderBy,
     });
+    if (!query.sort || query.sort === 'DEFAULT') {
+      // 默认排序 = 款序树：国家 → 款所属二级 → 款 → 优先级。
+      // 款顺序存于新树 categories.sort_order（回填自排序表），商品经
+      // origin_goods.sds_category_id 定位到款；同一款下多条 Good 共享
+      // 前三层键，仅按 goodPriority 分先后。缺键（如款不在树中）沉到
+      // 所属国家分组末尾。
+      const meta = await this.loadTreeOrderMeta();
+      rows.sort((a, b) => this.compareByTreeOrder(meta, a, b));
+    }
     const familyMinPrices = await this.loadFamilyMinPrices();
     const grouped = new Map<string, PublicGoodListRow[]>();
     for (const good of rows) {
@@ -244,7 +254,7 @@ export class PublicService {
       else grouped.set(key, [good]);
     }
     let items = [...grouped.values()].map((goods) => {
-      const rep = goods[0];
+      const rep = this.pickFamilyRepresentative(goods);
       const dto = this.toPublicGood(rep);
       // 列表价 = 族矩阵最低价（"这个款之下有哪些价格"的起价）；无矩阵回退链接价
       const familyMin = rep.familyId
@@ -270,6 +280,52 @@ export class PublicService {
     };
   }
 
+  /**
+   * 款序元数据：countries.sort_order（一级）+ 新树二/三级 categories.sort_order
+   * （款顺序，回填自排序表）。key 用 origin_goods.sds_category_id 关联商品→款。
+   */
+  private async loadTreeOrderMeta(): Promise<TreeOrderMeta> {
+    const [countries, leaves] = await Promise.all([
+      this.prisma.country.findMany({ select: { id: true, sortOrder: true } }),
+      this.prisma.$queryRaw<
+        Array<{ sds_category_id: string; c2: number; c3: number }>
+      >`
+        SELECT leaf.sds_category_id,
+               COALESCE(mid.sort_order, 2147483647) AS c2,
+               COALESCE(leaf.sort_order, 2147483647) AS c3
+        FROM categories leaf
+        JOIN categories mid ON mid.category_id = leaf.parent_category_id
+        WHERE leaf.sds_category_id IS NOT NULL AND leaf.sds_category_id <> ''
+      `,
+    ]);
+    return {
+      countryOrder: new Map(countries.map((c) => [c.id.toString(), c.sortOrder])),
+      leafOrder: new Map(
+        leaves.map((l) => [l.sds_category_id, { c2: Number(l.c2), c3: Number(l.c3) }]),
+      ),
+    };
+  }
+
+  private compareByTreeOrder(meta: TreeOrderMeta, a: PublicGoodListRow, b: PublicGoodListRow): number {
+    const MAX = Number.MAX_SAFE_INTEGER;
+    const key = (g: PublicGoodListRow): [number, number, number, number, number] => {
+      const leaf = meta.leafOrder.get(g.originGood.sdsCategoryId ?? '');
+      return [
+        meta.countryOrder.get(g.countryId.toString()) ?? MAX,
+        leaf?.c2 ?? MAX,
+        leaf?.c3 ?? MAX,
+        -(g.goodPriority ?? 0),
+        Number(g.id),
+      ];
+    };
+    const ka = key(a);
+    const kb = key(b);
+    for (let i = 0; i < ka.length; i++) {
+      if (ka[i] !== kb[i]) return ka[i] - kb[i];
+    }
+    return 0;
+  }
+
   /**
    * 族最低价一次 SQL 聚合：price_matrix 是每族 ~11KB 的 JSONB，按行 include
    * 会让每个商品都携带整份矩阵（实测全量 ~330ms）；PG 端展开聚合只回传
@@ -365,16 +421,20 @@ export class PublicService {
       take: query.limit,
     });
     const familyMinPrices = await this.loadFamilyMinPrices();
-    // 首页同样按族去重（同族多条位置配置只保留排序最前一条），再截取 limit
-    const seen = new Set<string>();
-    const items: PublicGoodDto[] = [];
+    // 首页同样按族去重（一族只出一条），代表行选取与详情/列表一致
+    const grouped = new Map<string, PublicGoodListRow[]>();
     for (const good of rows) {
       const key = good.familyId ? `f:${good.familyId}` : `g:${good.id}`;
-      if (seen.has(key)) continue;
-      seen.add(key);
-      const dto = this.toPublicGood(good);
-      const familyMin = good.familyId
-        ? familyMinPrices.get(good.familyId.toString())
+      const bucket = grouped.get(key);
+      if (bucket) bucket.push(good);
+      else grouped.set(key, [good]);
+    }
+    const items: PublicGoodDto[] = [];
+    for (const goods of grouped.values()) {
+      const rep = this.pickFamilyRepresentative(goods);
+      const dto = this.toPublicGood(rep);
+      const familyMin = rep.familyId
+        ? familyMinPrices.get(rep.familyId.toString())
         : undefined;
       if (familyMin !== undefined) dto.price = familyMin;
       items.push(dto);
@@ -382,6 +442,22 @@ export class PublicService {
     return items.slice(0, query.limit);
   }
 
+  /**
+   * 族代表行选取：与详情 getGoodByFamilyId 的 orderBy 保持一致
+   * （goodPriority desc → createdAt desc → id asc），
+   * 保证列表/首页与详情返回的 goodName、主图、分类等代表行字段一致。
+   */
+  private pickFamilyRepresentative<T extends { goodPriority: number | null; createdAt: Date; id: bigint }>(
+    goods: T[],
+  ): T {
+    return [...goods].sort(
+      (a, b) =>
+        (b.goodPriority ?? 0) - (a.goodPriority ?? 0) ||
+        b.createdAt.getTime() - a.createdAt.getTime() ||
+        (a.id < b.id ? -1 : a.id > b.id ? 1 : 0),
+    )[0];
+  }
+
   /** 入参用精简行类型：列表（PublicGoodListRow）与详情（PublicGoodRow，字段超集）都能传 */
   private toPublicGood(good: PublicGoodListRow): PublicGoodDto {
     const formatGroup = (group: { id: bigint; groupName: string; sortOrder: number } | null) =>