From d63aeef45b29de9fc68f1bd062508cefa47037a9 Mon Sep 17 00:00:00 2001
From: pllx <pllx@users.noreply.github.com>
Date: Tue, 28 Apr 2026 13:12:56 +0800
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---
 resources/js/chat-room/shop-controls.js | 53 ++++++++++++++++++++++++-
 1 file changed, 51 insertions(+), 2 deletions(-)

diff --git a/resources/js/chat-room/shop-controls.js b/resources/js/chat-room/shop-controls.js
index d6fa2f4..e7d9e4a 100644
--- a/resources/js/chat-room/shop-controls.js
+++ b/resources/js/chat-room/shop-controls.js
@@ -548,9 +548,17 @@ async function confirmAndBuyItem(item) {
         }
     }
 
-    const validityText = buildValidityText(item);
     const isDecoration = DECORATION_TYPE_TO_SLOT[item.type] && item.type !== "sign_repair";
-    const stackingHint = isDecoration ? "\\n\\n💡 已激活的同款续购自动叠加天数，可多次购买" : "";
+    if (isDecoration) {
+        const unitPrice = Number(item.price || 0);
+        quantity = await promptDecorationQuantity(item);
+        if (quantity === null || quantity === undefined) {
+            return;
+        }
+    }
+
+    const validityText = buildValidityText(item);
+    const stackingHint = isDecoration ? "\\n💡 已激活同款续购自动叠加天数，可多次购买" : "";
     const confirmMessage = `确认花费 💰 ${Number(Number(item.price || 0) * quantity).toLocaleString()} 金币购买\\n【${item.name}】${quantity > 1 ? ` × ${quantity}` : ""}${validityText ? `\\n${validityText}` : ""}${stackingHint}\\n\\n确定购买吗？`;
     const confirmed = await confirmShopPurchase(confirmMessage);
 
@@ -559,6 +567,47 @@ async function confirmAndBuyItem(item) {
     }
 }
 
+/**
+ * 装饰品数量输入弹窗（参照补签卡样式）。
+ *
+ * @param {Record<string, any>} item 装饰品数据
+ * @returns {Promise<number|null>} 返回数量，取消返回 null
+ */
+async function promptDecorationQuantity(item) {
+    const unitPrice = Number(item.price || 0);
+    const validityText = buildValidityText(item);
+    const validHint = validityText ? `\\n有效期：${validityText}` : "";
+    const promptPromise = window.chatDialog?.prompt(
+        `请输入要购买的份数（1-99份）：\\n单价 ${unitPrice.toLocaleString()} 金币${validHint}\\n💡 已激活同款续购自动叠加天数，可多次购买`,
+        '1',
+        `购买 ${item.name}`,
+        '#7c3aed',
+    );
+
+    const inputEl = document.getElementById('global-dialog-input');
+    const previousInputStyle = inputEl?.getAttribute('style') || '';
+
+    if (inputEl) {
+        inputEl.style.minHeight = '40px';
+        inputEl.style.height = '40px';
+        inputEl.style.resize = 'none';
+        inputEl.style.overflow = 'hidden';
+    }
+
+    const rawQuantity = await promptPromise;
+
+    if (inputEl) inputEl.setAttribute('style', previousInputStyle);
+    if (rawQuantity === null || rawQuantity === undefined) return null;
+
+    const quantity = Number.parseInt(String(rawQuantity).trim(), 10);
+    if (!Number.isInteger(quantity) || quantity < 1 || quantity > 99) {
+        window.chatDialog?.alert('购买数量必须是 1 到 99 之间的整数。', '数量不正确', '#cc4444');
+        return null;
+    }
+
+    return quantity;
+}
+
 /**
  * 通用数量输入弹窗。
  *