refactor: 兑换机制改为一图章一奖品并引入库存

- 废弃 RedemptionRule（集 N 换 1），新增 Prize 表与 Stamp 1:1 关联
- Redemption 记录直接绑定到 stampId + prizeId + prizeName 快照
- 兑换事务用 updateMany + stock>0 条件作乐观锁
- 兑换后保留 Collection 记录，图章持续彩色点亮并标记"已兑换"
- 用户端入口改为点击已收集图章弹出兑换，库存为 0 时按钮禁用
- 管理后台删除 /admin/rules，奖品编辑嵌入 StampForm

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -4,7 +4,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## Project Overview
 
-CityWalk 图章收集系统 — 移动端 H5 + 管理后台。游客在城市点位扫描二维码收集图章，集满可兑换奖品，兑换后图章清空，支持重复收集。
+CityWalk 图章收集系统 — 移动端 H5 + 管理后台。游客在城市点位扫描二维码收集图章，每枚图章绑定一个特定奖品（带库存），已收集的图章可兑换对应奖品。兑换后图章保持彩色点亮并标记为"已兑换"，同一图章不可二次收集或二次兑换。
 
 ## Commands
 
@@ -17,7 +17,7 @@ pnpm dev:web       # Vite dev server on :5173
 pnpm db:generate   # Generate Prisma client after schema changes
 pnpm db:migrate    # Create and apply migrations (prisma migrate dev)
 pnpm db:push       # Push schema directly (dev only, no migration file)
-pnpm db:seed       # Seed sample data (9 stamps + 4 redemption rules)
+pnpm db:seed       # Seed sample data (16 stamps, each with a Prize of stock 100)
 
 # Build
 pnpm build         # Build all packages
@@ -48,7 +48,6 @@ All endpoints return: `{ success: boolean, data?: T, error?: { code: string, mes
 /collect/:stampId    → Redirects to /?stamp={stampId} (QR code entry point)
 /admin               → AdminLogin
 /admin/stamps        → Stamp CRUD + QR code generation
-/admin/rules         → Redemption rule CRUD
 /admin/redemptions   → Redemption history + stats
 ```
 
@@ -58,7 +57,7 @@ QR codes encode `/collect/{stampId}` → redirects to `/?stamp={stampId}` → La
 
 ### Redemption Transaction
 
-Atomic: `prisma.$transaction` creates Redemption record + deletes all user Collections. The `@@unique([userId, stampId])` constraint resets after deletion, allowing re-collection.
+Each `Stamp` has an optional `Prize` (1:1, `Prize.stampId @unique`). Redemption is atomic: inside `prisma.$transaction` we check the user has a `Collection` for the stamp, no existing `Redemption` for (user, stamp), the prize is `enabled`, then `prisma.prize.updateMany({ where: { id, stock: { gt: 0 } }, data: { stock: { decrement: 1 } } })` acts as a stock lock (throws `OUT_OF_STOCK` if zero rows updated) before creating the `Redemption` record with a `prizeName` snapshot. `Collection` rows are **not** deleted — the `@@unique([userId, stampId])` constraints on both `Collection` and `Redemption` naturally block re-collection and re-redemption of the same stamp.
 
 ## Critical: Tailwind CSS v4 Layer Architecture
 

README.md

@@ -32,5 +32,5 @@ packages/
   server/    Express API（认证、图章、兑换、管理）
   web/       React SPA（移动端 H5 + PC 管理后台）
 prisma/
-  schema.prisma    数据模型（User, Stamp, Collection, RedemptionRule, Redemption）
+  schema.prisma    数据模型（User, Stamp, Prize, Collection, Redemption）
 ```

packages/server/src/routes/admin.ts

@@ -26,7 +26,10 @@ router.use(requireAdmin);
 // ===== Stamps CRUD =====
 
 router.get("/stamps", async (_req, res) => {
-  const stamps = await prisma.stamp.findMany({ orderBy: { sortOrder: "asc" } });
+  const stamps = await prisma.stamp.findMany({
+    orderBy: { sortOrder: "asc" },
+    include: { prize: true },
+  });
   res.json({ success: true, data: stamps });
 });
 
@@ -121,69 +124,58 @@ router.get("/stamps/:id/qrcode", async (req, res) => {
   res.json({ success: true, data: { qrDataUrl, collectUrl, stampName: stamp.name } });
 });
 
-// ===== Redemption Rules CRUD =====
+// ===== Prize (per-stamp) =====
 
-router.get("/rules", async (_req, res) => {
-  const rules = await prisma.redemptionRule.findMany({ orderBy: { sortOrder: "asc" } });
-  res.json({ success: true, data: rules });
-});
-
-const ruleSchema = z.object({
+const prizeSchema = z.object({
   name: z.string().min(1, "奖品名称不能为空"),
   description: z.string().optional(),
-  threshold: z.number().int().min(1, "兑换门槛至少为 1"),
+  stock: z.number().int().min(0, "库存不能为负数"),
   enabled: z.boolean().optional(),
-  sortOrder: z.number().int().optional(),
 });
 
-router.post("/rules", async (req, res) => {
-  const parsed = ruleSchema.safeParse(req.body);
+router.put("/stamps/:id/prize", async (req, res) => {
+  const parsed = prizeSchema.safeParse(req.body);
   if (!parsed.success) {
     res.status(400).json({ success: false, error: { code: "VALIDATION", message: parsed.error.issues[0].message } });
     return;
   }
-  const rule = await prisma.redemptionRule.create({
-    data: {
-      name: parsed.data.name,
-      description: parsed.data.description,
-      threshold: parsed.data.threshold,
-      enabled: parsed.data.enabled ?? true,
-      sortOrder: parsed.data.sortOrder ?? 0,
-    },
+  const stamp = await prisma.stamp.findUnique({ where: { id: req.params.id } });
+  if (!stamp) {
+    res.status(404).json({ success: false, error: { code: "NOT_FOUND", message: "图章不存在" } });
+    return;
+  }
+  const data = {
+    name: parsed.data.name,
+    description: parsed.data.description ?? null,
+    stock: parsed.data.stock,
+    enabled: parsed.data.enabled ?? true,
+  };
+  const prize = await prisma.prize.upsert({
+    where: { stampId: stamp.id },
+    create: { stampId: stamp.id, ...data },
+    update: data,
   });
-  res.json({ success: true, data: rule });
-});
-
-router.put("/rules/:id", async (req, res) => {
-  const parsed = ruleSchema.partial().safeParse(req.body);
-  if (!parsed.success) {
-    res.status(400).json({ success: false, error: { code: "VALIDATION", message: parsed.error.issues[0].message } });
-    return;
-  }
-  const rule = await prisma.redemptionRule.update({
-    where: { id: req.params.id },
-    data: parsed.data,
-  }).catch(() => null);
-  if (!rule) {
-    res.status(404).json({ success: false, error: { code: "NOT_FOUND", message: "规则不存在" } });
-    return;
-  }
-  res.json({ success: true, data: rule });
-});
-
-router.delete("/rules/:id", async (req, res) => {
-  await prisma.redemptionRule.delete({ where: { id: req.params.id } }).catch(() => null);
-  res.json({ success: true, data: null });
+  res.json({ success: true, data: prize });
 });
 
 // ===== Redemption Records & Stats =====
 
 router.get("/redemptions", async (_req, res) => {
   const records = await prisma.redemption.findMany({
-    include: { user: { select: { username: true, phone: true } }, rule: { select: { name: true } } },
+    include: {
+      user: { select: { username: true, phone: true } },
+      stamp: { select: { name: true } },
+    },
     orderBy: { redeemedAt: "desc" },
   });
-  res.json({ success: true, data: records });
+  const data = records.map((r) => ({
+    id: r.id,
+    redeemedAt: r.redeemedAt,
+    user: r.user,
+    stampName: r.stamp.name,
+    prizeName: r.prizeName,
+  }));
+  res.json({ success: true, data });
 });
 
 router.get("/stats", async (_req, res) => {

packages/server/src/routes/redemption.ts

@@ -5,17 +5,8 @@ import { requireAuth } from "../middleware/auth.js";
 
 const router = Router();
 
-router.get("/rules", async (_req, res) => {
-  const rules = await prisma.redemptionRule.findMany({
-    where: { enabled: true },
-    orderBy: { sortOrder: "asc" },
-    select: { id: true, name: true, description: true, threshold: true },
-  });
-  res.json({ success: true, data: rules });
-});
-
 const redeemSchema = z.object({
-  ruleId: z.string().uuid("规则 ID 格式不正确"),
+  stampId: z.string().uuid("图章 ID 格式不正确"),
 });
 
 router.post("/redeem", requireAuth, async (req, res) => {
@@ -25,64 +16,94 @@ router.post("/redeem", requireAuth, async (req, res) => {
     return;
   }
 
-  const rule = await prisma.redemptionRule.findUnique({ where: { id: parsed.data.ruleId, enabled: true } });
-  if (!rule) {
-    res.status(404).json({ success: false, error: { code: "NOT_FOUND", message: "兑换规则不存在" } });
-    return;
+  const { stampId } = parsed.data;
+  const userId = req.userId!;
+
+  try {
+    const redemption = await prisma.$transaction(async (tx) => {
+      const collection = await tx.collection.findUnique({
+        where: { userId_stampId: { userId, stampId } },
+      });
+      if (!collection) {
+        throw new RedeemError("NOT_COLLECTED", "你还没有收集这枚图章", 400);
+      }
+
+      const already = await tx.redemption.findUnique({
+        where: { userId_stampId: { userId, stampId } },
+      });
+      if (already) {
+        throw new RedeemError("ALREADY_REDEEMED", "你已经兑换过这枚图章对应的奖品", 409);
+      }
+
+      const prize = await tx.prize.findUnique({ where: { stampId } });
+      if (!prize || !prize.enabled) {
+        throw new RedeemError("PRIZE_UNAVAILABLE", "该图章暂无可兑换的奖品", 400);
+      }
+
+      const decremented = await tx.prize.updateMany({
+        where: { id: prize.id, stock: { gt: 0 } },
+        data: { stock: { decrement: 1 } },
+      });
+      if (decremented.count === 0) {
+        throw new RedeemError("OUT_OF_STOCK", "奖品已兑完", 400);
+      }
+
+      return tx.redemption.create({
+        data: {
+          userId,
+          stampId,
+          prizeId: prize.id,
+          prizeName: prize.name,
+        },
+        include: { stamp: { select: { name: true } } },
+      });
+    });
+
+    res.json({
+      success: true,
+      data: {
+        id: redemption.id,
+        stampId: redemption.stampId,
+        stampName: redemption.stamp.name,
+        prizeName: redemption.prizeName,
+        redeemedAt: redemption.redeemedAt.toISOString(),
+      },
+    });
+  } catch (e) {
+    if (e instanceof RedeemError) {
+      res.status(e.status).json({ success: false, error: { code: e.code, message: e.message } });
+      return;
+    }
+    throw e;
   }
-
-  const collectionCount = await prisma.collection.count({ where: { userId: req.userId! } });
-  if (collectionCount < rule.threshold) {
-    res.status(400).json({
-      success: false,
-      error: { code: "INSUFFICIENT", message: `需要收集 ${rule.threshold} 枚图章，当前只有 ${collectionCount} 枚` },
-    });
-    return;
-  }
-
-  const redemption = await prisma.$transaction(async (tx) => {
-    // Deduct the oldest N collections (chronological order by collectedAt)
-    const toDelete = await tx.collection.findMany({
-      where: { userId: req.userId! },
-      orderBy: { collectedAt: "asc" },
-      take: rule.threshold,
-      select: { id: true },
-    });
-    await tx.collection.deleteMany({
-      where: { id: { in: toDelete.map((c) => c.id) } },
-    });
-    const record = await tx.redemption.create({
-      data: { userId: req.userId!, ruleId: rule.id, stampCount: rule.threshold },
-    });
-    return record;
-  });
-
-  res.json({
-    success: true,
-    data: {
-      id: redemption.id,
-      ruleName: rule.name,
-      stampCount: redemption.stampCount,
-      redeemedAt: redemption.redeemedAt.toISOString(),
-    },
-  });
 });
 
 router.get("/history", requireAuth, async (req, res) => {
   const records = await prisma.redemption.findMany({
     where: { userId: req.userId! },
-    include: { rule: { select: { name: true } } },
+    include: { stamp: { select: { name: true } } },
     orderBy: { redeemedAt: "desc" },
   });
 
   const data = records.map((r) => ({
     id: r.id,
-    ruleName: r.rule.name,
-    stampCount: r.stampCount,
+    stampId: r.stampId,
+    stampName: r.stamp.name,
+    prizeName: r.prizeName,
     redeemedAt: r.redeemedAt.toISOString(),
   }));
 
   res.json({ success: true, data });
 });
 
+class RedeemError extends Error {
+  constructor(
+    public code: string,
+    message: string,
+    public status: number,
+  ) {
+    super(message);
+  }
+}
+
 export default router;

packages/server/src/routes/stamps.ts

@@ -8,20 +8,25 @@ router.get("/", optionalAuth, async (req, res) => {
   const stamps = await prisma.stamp.findMany({
     where: { enabled: true },
     orderBy: { sortOrder: "asc" },
+    include: { prize: true },
   });
 
-  let collections: Set<string> = new Set();
-  let collectionMap: Map<string, Date> = new Map();
+  const collectionMap = new Map<string, Date>();
+  const redeemedSet = new Set<string>();
 
   if (req.userId) {
-    const userCollections = await prisma.collection.findMany({
-      where: { userId: req.userId },
-      select: { stampId: true, collectedAt: true },
-    });
-    userCollections.forEach((c) => {
-      collections.add(c.stampId);
-      collectionMap.set(c.stampId, c.collectedAt);
-    });
+    const [userCollections, userRedemptions] = await Promise.all([
+      prisma.collection.findMany({
+        where: { userId: req.userId },
+        select: { stampId: true, collectedAt: true },
+      }),
+      prisma.redemption.findMany({
+        where: { userId: req.userId },
+        select: { stampId: true },
+      }),
+    ]);
+    userCollections.forEach((c) => collectionMap.set(c.stampId, c.collectedAt));
+    userRedemptions.forEach((r) => redeemedSet.add(r.stampId));
   }
 
   const data = stamps.map((s) => ({
@@ -31,8 +36,18 @@ router.get("/", optionalAuth, async (req, res) => {
     imageColor: s.imageColor,
     imageGrey: s.imageGrey,
     sortOrder: s.sortOrder,
-    collected: collections.has(s.id),
+    collected: collectionMap.has(s.id),
     collectedAt: collectionMap.get(s.id)?.toISOString() ?? null,
+    redeemed: redeemedSet.has(s.id),
+    prize: s.prize
+      ? {
+          id: s.prize.id,
+          name: s.prize.name,
+          description: s.prize.description,
+          stock: s.prize.stock,
+          enabled: s.prize.enabled,
+        }
+      : null,
   }));
 
   res.json({ success: true, data });

packages/server/src/seed.ts

@@ -22,7 +22,7 @@ const stampData = [
 async function seed() {
   console.log("Seeding database...");
 
-  // Clear existing stamps (cascades to collections)
+  // Clear existing stamps (cascades to collections + prize)
   await prisma.stamp.deleteMany();
 
   const stamps = await Promise.all(
@@ -34,34 +34,20 @@ async function seed() {
           imageColor: `/uploads/stamps/stamp-${pos}-color.jpg`,
           imageGrey: `/uploads/stamps/stamp-${pos}-grey.jpg`,
           sortOrder: idx + 1,
+          prize: {
+            create: {
+              name: `${s.name} · 纪念章`,
+              description: `在「${s.name}」集到的专属纪念奖品`,
+              stock: 100,
+              enabled: true,
+            },
+          },
         },
       });
     }),
   );
 
-  console.log(`Created ${stamps.length} stamps`);
-
-  // Create redemption rules if none exist
-  const existingRules = await prisma.redemptionRule.count();
-  if (existingRules === 0) {
-    const rules = await Promise.all([
-      prisma.redemptionRule.create({
-        data: { name: "纪念书签", description: "精美城市纪念书签一枚", threshold: 4, sortOrder: 1 },
-      }),
-      prisma.redemptionRule.create({
-        data: { name: "手绘明信片套装", description: "一套 5 张手绘城市明信片", threshold: 8, sortOrder: 2 },
-      }),
-      prisma.redemptionRule.create({
-        data: { name: "限定徽章礼盒", description: "城市限定版金属徽章礼盒", threshold: 12, sortOrder: 3 },
-      }),
-      prisma.redemptionRule.create({
-        data: { name: "城市记忆礼包", description: "包含纪念 T 恤、帆布袋和城市画册", threshold: 16, sortOrder: 4 },
-      }),
-    ]);
-    console.log(`Created ${rules.length} redemption rules`);
-  } else {
-    console.log(`Kept existing ${existingRules} redemption rules`);
-  }
+  console.log(`Created ${stamps.length} stamps with prizes`);
 
   console.log("\nStamp IDs for testing:");
   stamps.forEach((s) => {

packages/shared/src/types.ts

@@ -4,6 +4,14 @@ export type ApiResponse<T = unknown> = {
   error?: { code: string; message: string };
 };
 
+export type PrizeInfo = {
+  id: string;
+  name: string;
+  description: string | null;
+  stock: number;
+  enabled: boolean;
+};
+
 export type StampWithStatus = {
   id: string;
   name: string;
@@ -13,19 +21,15 @@ export type StampWithStatus = {
   sortOrder: number;
   collected: boolean;
   collectedAt: string | null;
-};
-
-export type RedemptionRuleInfo = {
-  id: string;
-  name: string;
-  description: string | null;
-  threshold: number;
+  redeemed: boolean;
+  prize: PrizeInfo | null;
 };
 
 export type RedemptionRecord = {
   id: string;
-  ruleName: string;
-  stampCount: number;
+  stampId: string;
+  stampName: string;
+  prizeName: string;
   redeemedAt: string;
 };
 

packages/web/src/App.tsx

@@ -11,7 +11,6 @@ import Dashboard from "./admin/Dashboard";
 import StampList from "./admin/StampList";
 import ArticleList from "./admin/ArticleList";
 import MusicList from "./admin/MusicList";
-import RuleList from "./admin/RuleList";
 import UsersList from "./admin/UsersList";
 import RedemptionLog from "./admin/RedemptionLog";
 
@@ -39,7 +38,6 @@ export default function App() {
             <Route path="/admin/stamps" element={<StampList />} />
             <Route path="/admin/articles" element={<ArticleList />} />
             <Route path="/admin/music" element={<MusicList />} />
-            <Route path="/admin/rules" element={<RuleList />} />
             <Route path="/admin/users" element={<UsersList />} />
             <Route path="/admin/redemptions" element={<RedemptionLog />} />
           </Route>

packages/web/src/admin/AdminLayout.tsx

@@ -6,9 +6,8 @@ const navItems = [
   { path: "/admin/stamps", label: "图章管理", eyebrow: "02", tag: "Stamps" },
   { path: "/admin/articles", label: "文章管理", eyebrow: "03", tag: "Articles" },
   { path: "/admin/music", label: "音乐管理", eyebrow: "04", tag: "Music" },
-  { path: "/admin/rules", label: "兑换规则", eyebrow: "05", tag: "Rules" },
-  { path: "/admin/users", label: "用户管理", eyebrow: "06", tag: "Users" },
-  { path: "/admin/redemptions", label: "兑换记录", eyebrow: "07", tag: "Log" },
+  { path: "/admin/users", label: "用户管理", eyebrow: "05", tag: "Users" },
+  { path: "/admin/redemptions", label: "兑换记录", eyebrow: "06", tag: "Log" },
 ];
 
 export default function AdminLayout() {

packages/web/src/admin/RedemptionLog.tsx

@@ -5,11 +5,10 @@ import { TableCard, TableHeadRow } from "./StampList";
 
 type RedemptionRecord = {
   id: string;
-  userId: string;
-  stampCount: number;
   redeemedAt: string;
   user: { username: string; phone: string };
-  rule: { name: string };
+  stampName: string;
+  prizeName: string;
 };
 
 type Stats = {
@@ -44,7 +43,7 @@ export default function RedemptionLog() {
   return (
     <>
       <PageHeader
-        eyebrow="07 · Log"
+        eyebrow="06 · Log"
         title="兑换记录"
         caption="账户、图章收集与兑换的完整轨迹"
       />
@@ -119,7 +118,7 @@ export default function RedemptionLog() {
             ) : (
               <table className="w-full">
                 <thead>
-                  <TableHeadRow cols={["用户", "手机号", "兑换奖品", "扣除枚数", "时间"]} />
+                  <TableHeadRow cols={["用户", "手机号", "图章", "奖品", "时间"]} />
                 </thead>
                 <tbody>
                   {records.map((r, i) => (
@@ -137,16 +136,10 @@ export default function RedemptionLog() {
                         <span className="text-sm text-[var(--text-secondary)] font-mono">{r.user.phone}</span>
                       </td>
                       <td className="px-5 py-4">
-                        <span className="text-sm text-[var(--text-secondary)]">{r.rule.name}</span>
+                        <span className="text-sm text-[var(--text-secondary)]">{r.stampName}</span>
                       </td>
-                      <td className="px-5 py-4 text-center w-[140px]">
-                        <span
-                          className="inline-flex items-baseline gap-1 text-[var(--terracotta)]"
-                          style={{ fontFamily: "'Playfair Display', serif" }}
-                        >
-                          <span className="text-xl font-semibold leading-none">−{r.stampCount}</span>
-                          <span className="text-[10px] tracking-[0.2em] uppercase opacity-70">枚</span>
-                        </span>
+                      <td className="px-5 py-4">
+                        <span className="text-sm text-[var(--text-primary)] font-medium">{r.prizeName}</span>
                       </td>
                       <td className="px-5 py-4 text-right w-[200px]">
                         <span className="text-xs text-[var(--text-muted)] font-mono">

packages/web/src/admin/RuleForm.tsx

@@ -1,132 +0,0 @@
-import { useState, useEffect } from "react";
-import Modal from "./Modal";
-import { adminFetch } from "./adminApi";
-import { useToast } from "./Toast";
-import { Field, ErrorRow, FormFooter, fieldCls } from "./FormPrimitives";
-
-type Rule = {
-  id: string;
-  name: string;
-  description: string | null;
-  threshold: number;
-  enabled: boolean;
-  sortOrder: number;
-};
-
-type Props = {
-  open: boolean;
-  id: string | null;
-  onClose: () => void;
-  onSaved: () => void;
-};
-
-export default function RuleForm({ open, id, onClose, onSaved }: Props) {
-  const toast = useToast();
-  const [name, setName] = useState("");
-  const [description, setDescription] = useState("");
-  const [threshold, setThreshold] = useState(1);
-  const [sortOrder, setSortOrder] = useState(0);
-  const [saving, setSaving] = useState(false);
-  const [error, setError] = useState("");
-
-  const isEdit = !!id;
-
-  useEffect(() => {
-    if (!open) return;
-    setError("");
-    if (!id) {
-      setName(""); setDescription(""); setThreshold(1); setSortOrder(0);
-      return;
-    }
-    adminFetch<Rule[]>("/rules").then((rules) => {
-      const rule = rules.find((r) => r.id === id);
-      if (rule) {
-        setName(rule.name);
-        setDescription(rule.description || "");
-        setThreshold(rule.threshold);
-        setSortOrder(rule.sortOrder);
-      }
-    });
-  }, [open, id]);
-
-  const handleSave = async () => {
-    setError("");
-    if (!name.trim()) return setError("请输入奖品名称");
-    setSaving(true);
-    try {
-      const body = {
-        name: name.trim(),
-        description: description.trim() || undefined,
-        threshold,
-        sortOrder,
-      };
-      if (isEdit) {
-        await adminFetch(`/rules/${id}`, { method: "PUT", body: JSON.stringify(body) });
-      } else {
-        await adminFetch("/rules", { method: "POST", body: JSON.stringify(body) });
-      }
-      toast.show("已保存");
-      onSaved();
-      onClose();
-    } catch (e) {
-      setError(e instanceof Error ? e.message : "保存失败");
-    } finally {
-      setSaving(false);
-    }
-  };
-
-  return (
-    <Modal
-      open={open}
-      onClose={onClose}
-      size="md"
-      eyebrow={isEdit ? "Edit Rule" : "New Rule"}
-      title={isEdit ? "编辑兑换规则" : "添加兑换规则"}
-    >
-      <div className="px-7 py-6 space-y-5">
-        <Field label="奖品名称" required>
-          <input
-            value={name}
-            onChange={(e) => setName(e.target.value)}
-            placeholder="如：城市限定明信片"
-            className={fieldCls}
-          />
-        </Field>
-
-        <Field label="奖品描述">
-          <textarea
-            value={description}
-            onChange={(e) => setDescription(e.target.value)}
-            rows={3}
-            placeholder="选填"
-            className={fieldCls + " resize-none"}
-          />
-        </Field>
-
-        <div className="grid grid-cols-2 gap-5">
-          <Field label="所需图章数" required hint="≥ 1">
-            <input
-              type="number"
-              min={1}
-              value={threshold}
-              onChange={(e) => setThreshold(Number(e.target.value))}
-              className={fieldCls + " w-full"}
-            />
-          </Field>
-          <Field label="排序" hint="数字小的在前">
-            <input
-              type="number"
-              value={sortOrder}
-              onChange={(e) => setSortOrder(Number(e.target.value))}
-              className={fieldCls + " w-full"}
-            />
-          </Field>
-        </div>
-
-        {error && <ErrorRow text={error} />}
-      </div>
-
-      <FormFooter onCancel={onClose} onSave={handleSave} saving={saving} primaryLabel={isEdit ? "保存" : "创建"} />
-    </Modal>
-  );
-}

packages/web/src/admin/RuleList.tsx

@@ -1,151 +0,0 @@
-import { useState, useEffect } from "react";
-import { adminFetch } from "./adminApi";
-import { useToast } from "./Toast";
-import RuleForm from "./RuleForm";
-import PageHeader, {
-  PrimaryButton,
-  StatusChip,
-  ActionButton,
-  EmptyState,
-  LoadingBlock,
-  IconEdit,
-  IconDelete,
-} from "./PageHeader";
-import { TableCard, TableHeadRow } from "./StampList";
-
-type Rule = {
-  id: string;
-  name: string;
-  description: string | null;
-  threshold: number;
-  enabled: boolean;
-  sortOrder: number;
-};
-
-export default function RuleList() {
-  const toast = useToast();
-  const [rules, setRules] = useState<Rule[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [formState, setFormState] = useState<{ open: boolean; id: string | null }>({ open: false, id: null });
-
-  const fetchRules = async () => {
-    try {
-      const data = await adminFetch<Rule[]>("/rules");
-      setRules(data);
-    } finally {
-      setLoading(false);
-    }
-  };
-
-  useEffect(() => {
-    fetchRules();
-  }, []);
-
-  const handleDelete = async (id: string, name: string) => {
-    if (!confirm(`确定删除规则「${name}」？`)) return;
-    try {
-      await adminFetch(`/rules/${id}`, { method: "DELETE" });
-      toast.show("已删除");
-      fetchRules();
-    } catch (e) {
-      toast.show(e instanceof Error ? e.message : "删除失败", "error");
-    }
-  };
-
-  const handleToggle = async (id: string, enabled: boolean) => {
-    await adminFetch(`/rules/${id}`, {
-      method: "PUT",
-      body: JSON.stringify({ enabled: !enabled }),
-    });
-    fetchRules();
-  };
-
-  return (
-    <>
-      <PageHeader
-        eyebrow="05 · Rules"
-        title="兑换规则"
-        caption="设置可兑换的奖品与所需图章数"
-        action={<PrimaryButton onClick={() => setFormState({ open: true, id: null })}>添加规则</PrimaryButton>}
-      />
-
-      {loading ? (
-        <LoadingBlock />
-      ) : (
-        <TableCard>
-          {rules.length === 0 ? (
-            <EmptyState
-              message="尚未创建兑换规则"
-              action={
-                <PrimaryButton onClick={() => setFormState({ open: true, id: null })}>
-                  添加第一条规则
-                </PrimaryButton>
-              }
-            />
-          ) : (
-            <table className="w-full">
-              <thead>
-                <TableHeadRow cols={["奖品", "描述", "所需图章", "状态", "操作"]} />
-              </thead>
-              <tbody>
-                {rules.map((rule, i) => (
-                  <tr
-                    key={rule.id}
-                    className="border-t border-[var(--border-muted)] hover:bg-white/60 transition-colors animate-admin-row"
-                    style={{ animationDelay: `${Math.min(i, 12) * 0.03}s` }}
-                  >
-                    <td className="px-5 py-4">
-                      <p className="text-[15px] font-medium text-[var(--text-primary)]">{rule.name}</p>
-                    </td>
-                    <td className="px-5 py-4">
-                      <p className="text-sm text-[var(--text-muted)] max-w-[340px] truncate">
-                        {rule.description || "—"}
-                      </p>
-                    </td>
-                    <td className="px-5 py-4 text-center w-[140px]">
-                      <div className="inline-flex items-baseline gap-1.5">
-                        <span
-                          className="text-2xl text-[var(--terracotta)] leading-none"
-                          style={{ fontFamily: "'Playfair Display', serif", fontWeight: 600 }}
-                        >
-                          {rule.threshold}
-                        </span>
-                        <span className="text-[10px] tracking-[0.2em] uppercase text-[var(--text-muted)]">
-                          枚
-                        </span>
-                      </div>
-                    </td>
-                    <td className="px-5 py-4 text-center w-[110px]">
-                      <StatusChip enabled={rule.enabled} onClick={() => handleToggle(rule.id, rule.enabled)} />
-                    </td>
-                    <td className="px-5 py-4 w-[140px]">
-                      <div className="flex items-center justify-end gap-1">
-                        <ActionButton title="编辑" onClick={() => setFormState({ open: true, id: rule.id })}>
-                          {IconEdit}
-                        </ActionButton>
-                        <ActionButton
-                          title="删除"
-                          variant="danger"
-                          onClick={() => handleDelete(rule.id, rule.name)}
-                        >
-                          {IconDelete}
-                        </ActionButton>
-                      </div>
-                    </td>
-                  </tr>
-                ))}
-              </tbody>
-            </table>
-          )}
-        </TableCard>
-      )}
-
-      <RuleForm
-        open={formState.open}
-        id={formState.id}
-        onClose={() => setFormState({ open: false, id: null })}
-        onSaved={fetchRules}
-      />
-    </>
-  );
-}

packages/web/src/admin/StampForm.tsx

@@ -4,6 +4,14 @@ import { adminFetch } from "./adminApi";
 import { useToast } from "./Toast";
 import { Field, ErrorRow, FormFooter, HintRow, fieldCls } from "./FormPrimitives";
 
+type Prize = {
+  id: string;
+  name: string;
+  description: string | null;
+  stock: number;
+  enabled: boolean;
+};
+
 type Stamp = {
   id: string;
   name: string;
@@ -12,6 +20,7 @@ type Stamp = {
   imageGrey: string;
   sortOrder: number;
   enabled: boolean;
+  prize: Prize | null;
 };
 
 type Props = {
@@ -32,6 +41,11 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
   const [saving, setSaving] = useState(false);
   const [error, setError] = useState("");
 
+  const [prizeName, setPrizeName] = useState("");
+  const [prizeDescription, setPrizeDescription] = useState("");
+  const [prizeStock, setPrizeStock] = useState(0);
+  const [prizeEnabled, setPrizeEnabled] = useState(true);
+
   const isEdit = !!currentId;
 
   useEffect(() => {
@@ -44,6 +58,10 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
       setSortOrder(0);
       setImageColor("");
       setImageGrey("");
+      setPrizeName("");
+      setPrizeDescription("");
+      setPrizeStock(0);
+      setPrizeEnabled(true);
       return;
     }
     adminFetch<Stamp[]>("/stamps").then((stamps) => {
@@ -54,6 +72,17 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
         setSortOrder(stamp.sortOrder);
         setImageColor(stamp.imageColor);
         setImageGrey(stamp.imageGrey);
+        if (stamp.prize) {
+          setPrizeName(stamp.prize.name);
+          setPrizeDescription(stamp.prize.description || "");
+          setPrizeStock(stamp.prize.stock);
+          setPrizeEnabled(stamp.prize.enabled);
+        } else {
+          setPrizeName("");
+          setPrizeDescription("");
+          setPrizeStock(0);
+          setPrizeEnabled(true);
+        }
       }
     });
   }, [open, id]);
@@ -87,6 +116,10 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
       setError("请输入图章名称");
       return;
     }
+    if (isEdit && prizeName.trim() && prizeStock < 0) {
+      setError("库存不能为负数");
+      return;
+    }
     setSaving(true);
     try {
       const payload = { name: name.trim(), note: note.trim() || undefined, sortOrder };
@@ -95,6 +128,17 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
           method: "PUT",
           body: JSON.stringify(payload),
         });
+        if (prizeName.trim()) {
+          await adminFetch(`/stamps/${currentId}/prize`, {
+            method: "PUT",
+            body: JSON.stringify({
+              name: prizeName.trim(),
+              description: prizeDescription.trim() || undefined,
+              stock: prizeStock,
+              enabled: prizeEnabled,
+            }),
+          });
+        }
         toast.show("已保存");
         onSaved();
         onClose();
@@ -104,7 +148,7 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
           body: JSON.stringify(payload),
         });
         setCurrentId(stamp.id);
-        toast.show("已创建，现在可以上传图片");
+        toast.show("已创建，现在可以上传图片与配置奖品");
         onSaved();
       }
     } catch (e) {
@@ -121,7 +165,7 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
       size="md"
       eyebrow={isEdit ? "Edit Stamp" : "New Stamp"}
       title={isEdit ? "编辑图章" : "添加图章"}
-      subtitle={isEdit ? "调整信息与上传图片" : "先保存基础信息，再上传图章图片"}
+      subtitle={isEdit ? "调整信息、上传图片并配置关联奖品" : "先保存基础信息，再上传图片与配置奖品"}
     >
       <div className="px-7 py-6 space-y-5">
         <Field label="名称" required>
@@ -153,22 +197,79 @@ export default function StampForm({ open, id, onClose, onSaved }: Props) {
         </Field>
 
         {isEdit ? (
-          <div className="grid grid-cols-2 gap-5">
-            <ImageSlot
-              label="彩色图章"
-              kind="color"
-              image={imageColor}
-              onUpload={(f) => handleUpload(f, "imageColor")}
-            />
-            <ImageSlot
-              label="灰色图章"
-              kind="grey"
-              image={imageGrey}
-              onUpload={(f) => handleUpload(f, "imageGrey")}
-            />
-          </div>
+          <>
+            <div className="grid grid-cols-2 gap-5">
+              <ImageSlot
+                label="彩色图章"
+                kind="color"
+                image={imageColor}
+                onUpload={(f) => handleUpload(f, "imageColor")}
+              />
+              <ImageSlot
+                label="灰色图章"
+                kind="grey"
+                image={imageGrey}
+                onUpload={(f) => handleUpload(f, "imageGrey")}
+              />
+            </div>
+
+            <div className="pt-4 mt-2 border-t border-dashed border-[var(--border-muted)]">
+              <div className="flex items-baseline justify-between mb-3">
+                <span className="text-[13px] font-medium text-[var(--text-secondary)]">关联奖品</span>
+                <span
+                  className="text-[9px] tracking-[0.3em] uppercase text-[var(--gold)]"
+                  style={{ fontFamily: "'Playfair Display', serif" }}
+                >
+                  Prize
+                </span>
+              </div>
+
+              <div className="space-y-4">
+                <Field label="奖品名称" hint="留空表示此图章暂不提供兑换">
+                  <input
+                    value={prizeName}
+                    onChange={(e) => setPrizeName(e.target.value)}
+                    placeholder="如：朝天宫纪念书签"
+                    className={fieldCls}
+                  />
+                </Field>
+
+                <Field label="奖品描述">
+                  <textarea
+                    value={prizeDescription}
+                    onChange={(e) => setPrizeDescription(e.target.value)}
+                    rows={2}
+                    placeholder="选填，展示在用户兑换页"
+                    className={fieldCls + " resize-none"}
+                  />
+                </Field>
+
+                <div className="flex items-end gap-5">
+                  <Field label="库存" hint="≥ 0，兑换后自动扣减">
+                    <input
+                      type="number"
+                      min={0}
+                      value={prizeStock}
+                      onChange={(e) => setPrizeStock(Math.max(0, Number(e.target.value)))}
+                      className={fieldCls + " w-32"}
+                    />
+                  </Field>
+
+                  <label className="flex items-center gap-2 pb-[10px] cursor-pointer">
+                    <input
+                      type="checkbox"
+                      checked={prizeEnabled}
+                      onChange={(e) => setPrizeEnabled(e.target.checked)}
+                      className="w-4 h-4 accent-[var(--jade)]"
+                    />
+                    <span className="text-[13px] text-[var(--text-secondary)]">启用兑换</span>
+                  </label>
+                </div>
+              </div>
+            </div>
+          </>
         ) : (
-          <HintRow text="保存基础信息后，即可上传图章图片" />
+          <HintRow text="保存基础信息后，即可上传图章图片并配置关联奖品" />
         )}
 
         {error && <ErrorRow text={error} />}

packages/web/src/admin/StampList.tsx

@@ -24,6 +24,13 @@ type Stamp = {
   imageGrey: string;
   sortOrder: number;
   enabled: boolean;
+  prize: {
+    id: string;
+    name: string;
+    description: string | null;
+    stock: number;
+    enabled: boolean;
+  } | null;
 };
 
 export default function StampList() {
@@ -102,7 +109,7 @@ export default function StampList() {
           ) : (
             <table className="w-full">
               <thead>
-                <TableHeadRow cols={["图章", "名称 · 备注", "排序", "状态", "操作"]} />
+                <TableHeadRow cols={["图章", "名称 · 备注", "奖品 · 库存", "排序", "状态", "操作"]} />
               </thead>
               <tbody>
                 {stamps.map((stamp, i) => (
@@ -130,6 +137,32 @@ export default function StampList() {
                         </p>
                       )}
                     </td>
+                    <td className="px-5 py-4 w-[220px]">
+                      {stamp.prize ? (
+                        <>
+                          <p className="text-sm text-[var(--text-primary)] truncate max-w-[200px]">
+                            {stamp.prize.name}
+                          </p>
+                          <p className="text-xs mt-0.5">
+                            <span
+                              style={{
+                                color:
+                                  stamp.prize.stock > 0
+                                    ? "var(--text-muted)"
+                                    : "var(--terracotta)",
+                              }}
+                            >
+                              库存 {stamp.prize.stock}
+                            </span>
+                            {!stamp.prize.enabled && (
+                              <span className="ml-2 text-[var(--text-muted)]">· 已禁用</span>
+                            )}
+                          </p>
+                        </>
+                      ) : (
+                        <span className="text-xs text-[var(--text-muted)]/70 italic">未配置</span>
+                      )}
+                    </td>
                     <td className="px-5 py-4 text-center w-[80px]">
                       <span
                         className="text-[13px] text-[var(--text-secondary)]"

packages/web/src/components/RedeemModal.tsx

@@ -1,26 +1,34 @@
 import { useEffect, useState } from "react";
-import type { RedemptionRuleInfo } from "@stamp/shared";
+import type { StampWithStatus } from "@stamp/shared";
 
 type RedeemModalProps = {
-  rules: RedemptionRuleInfo[];
-  collectedCount: number;
-  onRedeem: (ruleId: string) => Promise<void>;
+  stamp: StampWithStatus;
+  onRedeem: (stampId: string) => Promise<void>;
   onClose: () => void;
 };
 
 const CONFIRM_COUNTDOWN = 5;
 
-export default function RedeemModal({ rules, collectedCount, onRedeem, onClose }: RedeemModalProps) {
-  const [redeeming, setRedeeming] = useState<string | null>(null);
-  const [error, setError] = useState("");
-  const [confirmRuleId, setConfirmRuleId] = useState<string | null>(null);
+type Mode = "redeemed" | "sold-out" | "unavailable" | "ready";
+
+function resolveMode(stamp: StampWithStatus): Mode {
+  if (stamp.redeemed) return "redeemed";
+  if (!stamp.prize || !stamp.prize.enabled) return "unavailable";
+  if (stamp.prize.stock <= 0) return "sold-out";
+  return "ready";
+}
+
+export default function RedeemModal({ stamp, onRedeem, onClose }: RedeemModalProps) {
+  const [confirming, setConfirming] = useState(false);
   const [countdown, setCountdown] = useState(CONFIRM_COUNTDOWN);
+  const [redeeming, setRedeeming] = useState(false);
+  const [error, setError] = useState("");
 
-  const confirmRule = confirmRuleId ? rules.find((r) => r.id === confirmRuleId) : null;
+  const mode = resolveMode(stamp);
+  const prize = stamp.prize;
 
-  // 5-second countdown that restarts each time the confirm panel opens
   useEffect(() => {
-    if (!confirmRuleId) return;
+    if (!confirming) return;
     setCountdown(CONFIRM_COUNTDOWN);
     const interval = setInterval(() => {
       setCountdown((c) => {
@@ -32,39 +40,57 @@ export default function RedeemModal({ rules, collectedCount, onRedeem, onClose }
       });
     }, 1000);
     return () => clearInterval(interval);
-  }, [confirmRuleId]);
+  }, [confirming]);
 
-  const openConfirm = (ruleId: string) => {
+  const openConfirm = () => {
+    if (mode !== "ready") return;
     setError("");
-    setConfirmRuleId(ruleId);
+    setConfirming(true);
   };
 
   const cancelConfirm = () => {
     if (redeeming) return;
-    setConfirmRuleId(null);
+    setConfirming(false);
   };
 
   const doRedeem = async () => {
-    if (!confirmRule || countdown > 0) return;
-    setRedeeming(confirmRule.id);
+    if (countdown > 0 || redeeming || mode !== "ready") return;
+    setRedeeming(true);
     setError("");
     try {
-      await onRedeem(confirmRule.id);
+      await onRedeem(stamp.id);
       onClose();
     } catch (e) {
       setError(e instanceof Error ? e.message : "兑换失败");
-      setConfirmRuleId(null);
+      setConfirming(false);
     } finally {
-      setRedeeming(null);
+      setRedeeming(false);
     }
   };
 
+  const buttonCopy = () => {
+    switch (mode) {
+      case "redeemed":
+        return "已兑换";
+      case "sold-out":
+        return "已兑完";
+      case "unavailable":
+        return "暂无奖品";
+      case "ready":
+        return "立即兑换";
+    }
+  };
+
+  const buttonBg = mode === "ready" ? "var(--jade)" : mode === "redeemed" ? "var(--gold)" : "var(--border-muted)";
+  const buttonColor = mode === "ready" || mode === "redeemed" ? "white" : "var(--text-muted)";
+
   return (
-    <div className="fixed inset-0 z-50 flex items-end justify-center animate-overlay-fade"
+    <div
+      className="fixed inset-0 z-50 flex items-end justify-center animate-overlay-fade"
       style={{ backgroundColor: "var(--overlay)" }}
       onClick={(e) => {
         if (e.target !== e.currentTarget) return;
-        if (confirmRuleId) return; // Don't dismiss during confirm flow
+        if (confirming) return;
         onClose();
       }}
     >
@@ -78,57 +104,75 @@ export default function RedeemModal({ rules, collectedCount, onRedeem, onClose }
           </button>
         </div>
 
-        <p className="text-sm text-[var(--text-secondary)] mb-4">
-          当前已收集 <span className="font-semibold text-[var(--jade)]">{collectedCount}</span> 枚图章
-        </p>
-
-        {error && (
-          <p className="text-sm text-[var(--terracotta)] mb-3">{error}</p>
-        )}
-
-        <div className="space-y-3">
-          {rules.map((rule) => {
-            const canRedeem = collectedCount >= rule.threshold;
-            return (
-              <div
-                key={rule.id}
-                className="flex items-center justify-between p-4 rounded-xl border"
-                style={{
-                  borderColor: canRedeem ? "var(--jade)" : "var(--border-muted)",
-                  backgroundColor: canRedeem ? "rgba(45, 106, 79, 0.05)" : "white",
-                }}
-              >
-                <div className="flex-1 min-w-0 mr-3">
-                  <p className="text-sm font-medium text-[var(--text-primary)] truncate">
-                    {rule.name}
-                  </p>
-                  {rule.description && (
-                    <p className="text-xs text-[var(--text-muted)] mt-0.5 truncate">{rule.description}</p>
-                  )}
-                  <p className="text-xs text-[var(--text-muted)] mt-1">
-                    需要 {rule.threshold} 枚图章
-                  </p>
-                </div>
-                <button
-                  onClick={() => openConfirm(rule.id)}
-                  disabled={!canRedeem || !!redeeming}
-                  className="shrink-0 px-4 py-2 rounded-lg text-sm font-medium transition-colors"
-                  style={{
-                    backgroundColor: canRedeem ? "var(--jade)" : "var(--border-muted)",
-                    color: canRedeem ? "white" : "var(--text-muted)",
-                  }}
-                >
-                  兑换
-                </button>
-              </div>
-            );
-          })}
+        {/* Stamp header */}
+        <div className="flex items-center gap-4 mb-5">
+          <div
+            className="w-16 h-16 rounded-full bg-white overflow-hidden flex items-center justify-center border border-[var(--border-muted)] shrink-0"
+            style={{ boxShadow: "0 2px 6px rgba(212,165,116,0.25), inset 0 0 0 1px rgba(212,165,116,0.15)" }}
+          >
+            <img src={stamp.imageColor} alt={stamp.name} className="w-[92%] h-[92%] object-contain" />
+          </div>
+          <div className="min-w-0">
+            <p className="text-[10px] tracking-[0.25em] uppercase text-[var(--gold)] mb-0.5">Stamp</p>
+            <p className="text-base font-semibold text-[var(--text-primary)] truncate">{stamp.name}</p>
+            {stamp.collectedAt && (
+              <p className="text-xs text-[var(--text-muted)] mt-0.5">
+                收集于 {new Date(stamp.collectedAt).toLocaleDateString("zh-CN")}
+              </p>
+            )}
+          </div>
         </div>
 
+        {/* Prize card */}
+        {prize ? (
+          <div className="rounded-xl border border-[var(--jade)] bg-[rgba(45,106,79,0.05)] p-4 mb-4">
+            <p className="text-[10px] tracking-[0.2em] text-[var(--jade)] uppercase mb-1.5">Reward</p>
+            <p className="text-sm font-semibold text-[var(--text-primary)]">{prize.name}</p>
+            {prize.description && (
+              <p className="text-xs text-[var(--text-muted)] mt-1 leading-relaxed">{prize.description}</p>
+            )}
+            <div className="mt-3 pt-3 border-t border-[var(--jade)]/15 flex items-baseline justify-between">
+              <span className="text-xs text-[var(--text-muted)]">剩余库存</span>
+              <span
+                className="text-xl font-semibold"
+                style={{ color: prize.stock > 0 ? "var(--jade)" : "var(--terracotta)" }}
+              >
+                {prize.stock}
+                <span className="text-xs font-normal text-[var(--text-muted)] ml-1">枚</span>
+              </span>
+            </div>
+          </div>
+        ) : (
+          <div className="rounded-xl border border-[var(--border-muted)] bg-white p-4 mb-4 text-center">
+            <p className="text-sm text-[var(--text-muted)]">该图章暂未配置奖品</p>
+          </div>
+        )}
+
+        {mode === "redeemed" && (
+          <p className="text-xs text-[var(--text-muted)] text-center mb-4">你已经兑换过这枚图章对应的奖品</p>
+        )}
+        {mode === "sold-out" && (
+          <p className="text-xs text-[var(--terracotta)] text-center mb-4">奖品库存已耗尽</p>
+        )}
+
+        {error && <p className="text-sm text-[var(--terracotta)] mb-3 text-center">{error}</p>}
+
+        <button
+          onClick={openConfirm}
+          disabled={mode !== "ready"}
+          className="w-full py-3.5 rounded-xl text-sm font-medium transition-all disabled:cursor-not-allowed"
+          style={{
+            backgroundColor: buttonBg,
+            color: buttonColor,
+            boxShadow: mode === "ready" ? "0 2px 8px rgba(45,106,79,0.25)" : "none",
+          }}
+        >
+          {buttonCopy()}
+        </button>
       </div>
 
-      {/* Confirmation dialog — centered over the sheet, highest priority */}
-      {confirmRule && (
+      {/* Confirmation dialog */}
+      {confirming && prize && (
         <div
           className="fixed inset-0 z-[60] flex items-center justify-center px-5 py-6 animate-overlay-fade"
           style={{ backgroundColor: "rgba(26, 26, 46, 0.6)" }}
@@ -138,17 +182,18 @@ export default function RedeemModal({ rules, collectedCount, onRedeem, onClose }
             className="w-full max-w-sm bg-[var(--bg-cream)] rounded-2xl animate-scale-in overflow-hidden"
             style={{ boxShadow: "0 24px 60px rgba(26,26,46,0.35)" }}
           >
-            {/* Warning at the top — most prominent, filled terracotta */}
-            <div
-              className="px-5 py-4"
-              style={{
-                backgroundColor: "var(--terracotta)",
-                color: "#fff",
-              }}
-            >
+            {/* Warning */}
+            <div className="px-5 py-4" style={{ backgroundColor: "var(--terracotta)", color: "#fff" }}>
               <div className="flex gap-3">
-                <svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2.2"
-                  className="shrink-0 mt-0.5">
+                <svg
+                  width="22"
+                  height="22"
+                  viewBox="0 0 24 24"
+                  fill="none"
+                  stroke="currentColor"
+                  strokeWidth="2.2"
+                  className="shrink-0 mt-0.5"
+                >
                   <path d="M12 9v4M12 17h.01M10.29 3.86L1.82 18a2 2 0 001.71 3h16.94a2 2 0 001.71-3L13.71 3.86a2 2 0 00-3.42 0z" />
                 </svg>
                 <div className="flex-1">
@@ -160,50 +205,37 @@ export default function RedeemModal({ rules, collectedCount, onRedeem, onClose }
               </div>
             </div>
 
-            {/* Body */}
             <div className="px-5 pt-5 pb-5">
               <h3 className="text-base font-semibold text-[var(--text-primary)] mb-4">确认兑换</h3>
 
-              {/* Reward */}
               <div className="rounded-xl border border-[var(--jade)] bg-[rgba(45,106,79,0.05)] p-3.5 mb-3">
                 <p className="text-[10px] tracking-[0.2em] text-[var(--jade)] uppercase mb-1">Reward</p>
-                <p className="text-sm font-semibold text-[var(--text-primary)]">{confirmRule.name}</p>
-                {confirmRule.description && (
-                  <p className="text-xs text-[var(--text-muted)] mt-0.5">{confirmRule.description}</p>
+                <p className="text-sm font-semibold text-[var(--text-primary)]">{prize.name}</p>
+                {prize.description && (
+                  <p className="text-xs text-[var(--text-muted)] mt-0.5">{prize.description}</p>
                 )}
               </div>
 
-              {/* Deduction summary */}
               <div className="rounded-xl border border-[var(--border-default)] bg-white p-3.5 mb-2">
-                <div className="flex items-baseline justify-between">
-                  <span className="text-xs text-[var(--text-muted)]">将扣除</span>
-                  <span className="text-xl font-semibold text-[var(--terracotta)]">{confirmRule.threshold}</span>
-                </div>
-                <p className="text-xs text-[var(--text-muted)] mt-1 leading-relaxed">
-                  按收集顺序扣除最早的 {confirmRule.threshold} 枚，剩余{" "}
-                  <span className="font-medium text-[var(--text-secondary)]">
-                    {collectedCount - confirmRule.threshold}
-                  </span>{" "}
-                  枚将继续保留。
+                <p className="text-xs text-[var(--text-muted)] leading-relaxed">
+                  兑换后，「<span className="font-medium text-[var(--text-secondary)]">{stamp.name}</span>」图章将
+                  <span className="font-medium text-[var(--jade)]">保持彩色点亮</span>并标记为「已兑换」，此奖品不可再次兑换。
                 </p>
               </div>
 
-              <p className="text-[11px] text-[var(--text-muted)] text-center mb-4">
-                一旦确认，图章将立即扣除，此操作不可撤销
-              </p>
+              <p className="text-[11px] text-[var(--text-muted)] text-center mb-4">一旦确认，操作不可撤销</p>
 
-              {/* Buttons */}
               <div className="flex gap-2.5">
                 <button
                   onClick={cancelConfirm}
-                  disabled={!!redeeming}
+                  disabled={redeeming}
                   className="flex-1 py-3 rounded-xl text-sm font-medium border border-[var(--border-default)] text-[var(--text-secondary)] bg-white disabled:opacity-40"
                 >
                   取消
                 </button>
                 <button
                   onClick={doRedeem}
-                  disabled={countdown > 0 || !!redeeming}
+                  disabled={countdown > 0 || redeeming}
                   className="flex-[1.3] py-3 rounded-xl text-sm font-medium transition-colors"
                   style={{
                     backgroundColor: countdown > 0 || redeeming ? "var(--border-default)" : "var(--jade)",
@@ -211,11 +243,7 @@ export default function RedeemModal({ rules, collectedCount, onRedeem, onClose }
                     boxShadow: countdown > 0 || redeeming ? "none" : "0 2px 8px rgba(45,106,79,0.25)",
                   }}
                 >
-                  {redeeming
-                    ? "兑换中..."
-                    : countdown > 0
-                      ? `请阅读提示 ${countdown}s`
-                      : "确认兑换"}
+                  {redeeming ? "兑换中..." : countdown > 0 ? `请阅读提示 ${countdown}s` : "确认兑换"}
                 </button>
               </div>
             </div>

packages/web/src/components/StampCard.tsx

@@ -3,10 +3,11 @@ type StampCardProps = {
   imageColor: string;
   imageGrey: string;
   collected: boolean;
+  redeemed?: boolean;
   onClick?: () => void;
 };
 
-export default function StampCard({ name, imageColor, imageGrey, collected, onClick }: StampCardProps) {
+export default function StampCard({ name, imageColor, imageGrey, collected, redeemed, onClick }: StampCardProps) {
   const src = collected ? imageColor : imageGrey;
 
   return (
@@ -43,13 +44,22 @@ export default function StampCard({ name, imageColor, imageGrey, collected, onCl
           />
         </div>
 
-        {collected && (
+        {collected && !redeemed && (
           <div className="absolute top-0 right-0 w-4 h-4 rounded-full bg-[var(--jade)] flex items-center justify-center shadow-sm z-10">
             <svg width="10" height="10" viewBox="0 0 24 24" fill="none" stroke="white" strokeWidth="3">
               <polyline points="20 6 9 17 4 12" />
             </svg>
           </div>
         )}
+
+        {redeemed && (
+          <div
+            className="absolute -top-1 right-0 px-1.5 py-[1px] rounded-full text-[9px] font-semibold leading-tight shadow-sm z-10"
+            style={{ backgroundColor: "var(--gold)", color: "white", letterSpacing: "0.05em" }}
+          >
+            已兑换
+          </div>
+        )}
       </div>
 
       <span

packages/web/src/components/StampGrid.tsx

@@ -16,7 +16,8 @@ export default function StampGrid({ stamps, onStampClick }: StampGridProps) {
           imageColor={stamp.imageColor}
           imageGrey={stamp.imageGrey}
           collected={stamp.collected}
-          onClick={() => onStampClick?.(stamp)}
+          redeemed={stamp.redeemed}
+          onClick={stamp.collected ? () => onStampClick?.(stamp) : undefined}
         />
       ))}
     </div>

packages/web/src/pages/AlbumPage.tsx

@@ -1,6 +1,6 @@
 import { useState, useEffect } from "react";
 import { useNavigate } from "react-router-dom";
-import type { StampWithStatus, RedemptionRuleInfo, RedemptionRecord } from "@stamp/shared";
+import type { StampWithStatus, RedemptionRecord } from "@stamp/shared";
 import { apiFetch } from "../lib/api";
 import { useAuth } from "../lib/auth";
 import StampGrid from "../components/StampGrid";
@@ -11,27 +11,25 @@ export default function AlbumPage() {
   const navigate = useNavigate();
   const { user, isLoading: authLoading } = useAuth();
   const [stamps, setStamps] = useState<StampWithStatus[]>([]);
-  const [rules, setRules] = useState<RedemptionRuleInfo[]>([]);
   const [history, setHistory] = useState<RedemptionRecord[]>([]);
   const [loading, setLoading] = useState(true);
-  const [showRedeem, setShowRedeem] = useState(false);
+  const [selectedStampId, setSelectedStampId] = useState<string | null>(null);
   const [showRegister, setShowRegister] = useState(false);
 
   const collectedCount = stamps.filter((s) => s.collected).length;
+  const selectedStamp = selectedStampId ? stamps.find((s) => s.id === selectedStampId) ?? null : null;
 
   const fetchData = async () => {
     setLoading(true);
     try {
-      const [stampsData, rulesData] = await Promise.all([
-        apiFetch<StampWithStatus[]>("/stamps"),
-        apiFetch<RedemptionRuleInfo[]>("/redemption/rules"),
-      ]);
+      const stampsData = await apiFetch<StampWithStatus[]>("/stamps");
       setStamps(stampsData);
-      setRules(rulesData);
 
       if (user) {
         const historyData = await apiFetch<RedemptionRecord[]>("/redemption/history");
         setHistory(historyData);
+      } else {
+        setHistory([]);
       }
     } catch {
       // Stamps endpoint works without auth
@@ -44,20 +42,21 @@ export default function AlbumPage() {
     if (!authLoading) fetchData();
   }, [authLoading, user]);
 
-  const handleRedeem = async (ruleId: string) => {
+  const handleRedeem = async (stampId: string) => {
     await apiFetch("/redemption/redeem", {
       method: "POST",
-      body: JSON.stringify({ ruleId }),
+      body: JSON.stringify({ stampId }),
     });
     await fetchData();
   };
 
-  const handleRedeemClick = () => {
+  const handleStampClick = (stamp: StampWithStatus) => {
     if (!user) {
       setShowRegister(true);
       return;
     }
-    setShowRedeem(true);
+    if (!stamp.collected) return;
+    setSelectedStampId(stamp.id);
   };
 
   if (loading || authLoading) {
@@ -108,40 +107,18 @@ export default function AlbumPage() {
             style={{ width: stamps.length ? `${(collectedCount / stamps.length) * 100}%` : "0%" }}
           />
         </div>
+        {collectedCount > 0 && (
+          <p className="mt-3 text-[11px] text-[var(--text-muted)] leading-relaxed">
+            点击已点亮的图章，即可兑换对应奖品
+          </p>
+        )}
       </div>
 
       {/* Stamp Grid */}
       <div className="px-4 pb-6">
-        <StampGrid stamps={stamps} />
+        <StampGrid stamps={stamps} onStampClick={handleStampClick} />
       </div>
 
-      {/* Redeem Section */}
-      {rules.length > 0 && (() => {
-        const availableCount = rules.filter((r) => collectedCount >= r.threshold).length;
-        const canRedeem = availableCount > 0;
-        return (
-          <div className="px-6 pb-6">
-            <button
-              onClick={handleRedeemClick}
-              disabled={!canRedeem}
-              className="w-full py-3.5 rounded-xl text-sm font-medium transition-all disabled:cursor-not-allowed flex items-center justify-center gap-2"
-              style={{
-                backgroundColor: canRedeem ? "var(--jade)" : "var(--border-muted)",
-                color: canRedeem ? "white" : "var(--text-muted)",
-                boxShadow: canRedeem ? "0 2px 8px rgba(45,106,79,0.25)" : "none",
-              }}
-            >
-              <span>{canRedeem ? "兑换奖品" : "继续收集以解锁奖品"}</span>
-              {canRedeem && (
-                <span className="text-xs px-2 py-0.5 rounded-full bg-white/20">
-                  {availableCount} 个可兑换
-                </span>
-              )}
-            </button>
-          </div>
-        );
-      })()}
-
       {/* Redemption History */}
       {history.length > 0 && (
         <div className="px-6 pb-8">
@@ -149,13 +126,13 @@ export default function AlbumPage() {
           <div className="space-y-2">
             {history.map((r) => (
               <div key={r.id} className="flex items-center justify-between py-2 px-3 bg-white/60 rounded-lg">
-                <div>
-                  <p className="text-sm text-[var(--text-primary)]">{r.ruleName}</p>
+                <div className="min-w-0">
+                  <p className="text-sm text-[var(--text-primary)] truncate">{r.prizeName}</p>
                   <p className="text-xs text-[var(--text-muted)]">
-                    {new Date(r.redeemedAt).toLocaleDateString("zh-CN")}
+                    {r.stampName} · {new Date(r.redeemedAt).toLocaleDateString("zh-CN")}
                   </p>
                 </div>
-                <span className="text-xs text-[var(--jade)]">已兑换</span>
+                <span className="text-xs text-[var(--jade)] shrink-0 ml-3">已兑换</span>
               </div>
             ))}
           </div>
@@ -163,12 +140,11 @@ export default function AlbumPage() {
       )}
 
       {/* Modals */}
-      {showRedeem && (
+      {selectedStamp && (
         <RedeemModal
-          rules={rules}
-          collectedCount={collectedCount}
+          stamp={selectedStamp}
           onRedeem={handleRedeem}
-          onClose={() => setShowRedeem(false)}
+          onClose={() => setSelectedStampId(null)}
         />
       )}
 

prisma/migrations/20260420071500_add_prize_and_restructure_redemption/migration.sql

@@ -0,0 +1,60 @@
+-- CreateTable
+CREATE TABLE "Prize" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "stampId" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "description" TEXT,
+    "stock" INTEGER NOT NULL DEFAULT 0,
+    "enabled" BOOLEAN NOT NULL DEFAULT true,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" DATETIME NOT NULL,
+    CONSTRAINT "Prize_stampId_fkey" FOREIGN KEY ("stampId") REFERENCES "Stamp" ("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Prize_stampId_key" ON "Prize"("stampId");
+
+-- Backfill: create a default Prize for every existing Stamp
+INSERT INTO "Prize" ("id", "stampId", "name", "description", "stock", "enabled", "createdAt", "updatedAt")
+SELECT
+    lower(hex(randomblob(4))) || '-' || lower(hex(randomblob(2))) || '-' || lower(hex(randomblob(2))) || '-' || lower(hex(randomblob(2))) || '-' || lower(hex(randomblob(6))),
+    s."id",
+    s."name" || ' · 纪念章',
+    '在「' || s."name" || '」集到的专属纪念奖品',
+    100,
+    true,
+    CURRENT_TIMESTAMP,
+    CURRENT_TIMESTAMP
+FROM "Stamp" s;
+
+-- Drop legacy rows: old Redemption records (ruleId/stampCount model) cannot be mapped to the new
+-- one-stamp-one-prize schema, and RedemptionRule is being retired. Intentional data loss.
+DELETE FROM "Redemption";
+DELETE FROM "RedemptionRule";
+
+-- RedefineTable Redemption
+PRAGMA defer_foreign_keys=ON;
+PRAGMA foreign_keys=OFF;
+
+CREATE TABLE "new_Redemption" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "userId" TEXT NOT NULL,
+    "stampId" TEXT NOT NULL,
+    "prizeId" TEXT NOT NULL,
+    "prizeName" TEXT NOT NULL,
+    "redeemedAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT "Redemption_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
+    CONSTRAINT "Redemption_stampId_fkey" FOREIGN KEY ("stampId") REFERENCES "Stamp" ("id") ON DELETE RESTRICT ON UPDATE CASCADE,
+    CONSTRAINT "Redemption_prizeId_fkey" FOREIGN KEY ("prizeId") REFERENCES "Prize" ("id") ON DELETE RESTRICT ON UPDATE CASCADE
+);
+DROP TABLE "Redemption";
+ALTER TABLE "new_Redemption" RENAME TO "Redemption";
+
+CREATE UNIQUE INDEX "Redemption_userId_stampId_key" ON "Redemption"("userId", "stampId");
+CREATE INDEX "Redemption_userId_idx" ON "Redemption"("userId");
+
+-- DropTable (now safe, no more FK references)
+DROP TABLE "RedemptionRule";
+
+PRAGMA foreign_keys=ON;
+PRAGMA defer_foreign_keys=OFF;

prisma/schema.prisma

@@ -29,6 +29,21 @@ model Stamp {
   createdAt   DateTime     @default(now())
   updatedAt   DateTime     @updatedAt
   collections Collection[]
+  redemptions Redemption[]
+  prize       Prize?
+}
+
+model Prize {
+  id          String       @id @default(uuid())
+  stampId     String       @unique
+  name        String
+  description String?
+  stock       Int          @default(0)
+  enabled     Boolean      @default(true)
+  createdAt   DateTime     @default(now())
+  updatedAt   DateTime     @updatedAt
+  stamp       Stamp        @relation(fields: [stampId], references: [id], onDelete: Cascade)
+  redemptions Redemption[]
 }
 
 model Collection {
@@ -43,27 +58,18 @@ model Collection {
   @@index([userId])
 }
 
-model RedemptionRule {
-  id          String       @id @default(uuid())
-  name        String
-  description String?
-  threshold   Int
-  enabled     Boolean      @default(true)
-  sortOrder   Int          @default(0)
-  createdAt   DateTime     @default(now())
-  updatedAt   DateTime     @updatedAt
-  redemptions Redemption[]
-}
-
 model Redemption {
-  id         String         @id @default(uuid())
+  id         String   @id @default(uuid())
   userId     String
-  ruleId     String
-  stampCount Int
-  redeemedAt DateTime       @default(now())
-  user       User           @relation(fields: [userId], references: [id], onDelete: Cascade)
-  rule       RedemptionRule @relation(fields: [ruleId], references: [id])
+  stampId    String
+  prizeId    String
+  prizeName  String
+  redeemedAt DateTime @default(now())
+  user       User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+  stamp      Stamp    @relation(fields: [stampId], references: [id])
+  prize      Prize    @relation(fields: [prizeId], references: [id])
 
+  @@unique([userId, stampId])
   @@index([userId])
 }