fix: 商品售罄判断统一抽离为 computed 并完善空值处理

Jacob

2026-10-13 1d3f1ad9b368d1e15391e26d16497b8940cb5c74

 components/personalAndShareCoupon/index.vue
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@@ -409,7 +409,7 @@
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 		.box {
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 			width: 600rpx;
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 			padding: 90rpx 0 70rpx 0;
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-			background: url("https://ossacmall.bluedeer.com.cn/app/static/images/confirm_bg.png") center 0rpx/100% auto no-repeat;
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+			background: url("https://ossacmall.bluedeer.com.cn/app/static/images/confirm_bg.png") center 0rpx / 100% auto no-repeat;
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 			background-color: #f5f5f5;
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 			position: absolute;
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 			left: 50%;