diff --git a/packages/web/src/components/RedeemModal.tsx b/packages/web/src/components/RedeemModal.tsx
index 29bc1e0..31e1b03 100644
--- a/packages/web/src/components/RedeemModal.tsx
+++ b/packages/web/src/components/RedeemModal.tsx
@@ -151,11 +151,20 @@ export default function RedeemModal({ stamp, onRedeem, onClose }: RedeemModalPro
         {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-2">Reward</p>
-            {prize.description ? (
-              <p className="text-sm text-[var(--text-primary)] leading-relaxed">{prize.description}</p>
-            ) : (
-              <p className="text-sm text-[var(--text-muted)]">暂未填写权益说明</p>
+            <p className="text-sm font-medium text-[var(--text-primary)] mb-1">{prize.name}</p>
+            {prize.description && (
+              <p className="text-sm text-[var(--text-secondary)] 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-sm 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">份</span>
+              </span>
+            </div>
           </div>
         ) : (
           <div className="rounded-xl border border-[var(--border-muted)] bg-white p-4 mb-4 text-center">
@@ -171,6 +180,9 @@ export default function RedeemModal({ stamp, onRedeem, onClose }: RedeemModalPro
         {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">该奖品库存已耗尽，暂无法兑换</p>
+        )}
 
         {error && <p className="text-sm text-[var(--terracotta)] mb-3 text-center">{error}</p>}
 
@@ -227,6 +239,7 @@ export default function RedeemModal({ stamp, onRedeem, onClose }: RedeemModalPro
 
               <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-2">Reward</p>
+                <p className="text-sm font-medium text-[var(--text-primary)] mb-1">{prize.name}</p>
                 {prize.description && (
                   <p className="text-sm text-[var(--text-primary)] leading-relaxed">{prize.description}</p>
                 )}
diff --git a/packages/web/src/components/StampPopup.tsx b/packages/web/src/components/StampPopup.tsx
index fc482ce..7a7bc53 100644
--- a/packages/web/src/components/StampPopup.tsx
+++ b/packages/web/src/components/StampPopup.tsx
@@ -49,10 +49,23 @@ export default function StampPopup({ name, imageColor, note, prize, status, onCo
         {note && <p className="text-xs text-[var(--text-muted)] mb-3 leading-relaxed">{note}</p>}
 
         {/* Prize rule (preview only) */}
-        {status === "preview" && prize?.description && (
+        {status === "preview" && prize && (
           <div className="mt-3 mb-1 rounded-xl border border-[var(--jade)] bg-[rgba(45,106,79,0.05)] p-3.5 text-left">
             <p className="text-[10px] tracking-[0.2em] text-[var(--jade)] uppercase mb-2">Reward</p>
-            <p className="text-sm text-[var(--text-primary)] leading-relaxed">{prize.description}</p>
+            <p className="text-sm font-medium text-[var(--text-primary)] mb-1">{prize.name}</p>
+            {prize.description && (
+              <p className="text-sm text-[var(--text-secondary)] leading-relaxed">{prize.description}</p>
+            )}
+            <div className="mt-2.5 pt-2.5 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-sm 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">份</span>
+              </span>
+            </div>
           </div>
         )}