/**
 * 产品详情 SKU — 系统功能层（布局 / 选中态钩子 / 未选提示动画）
 * 视觉覆盖：主题 css/xy-commerce-skin.css
 * 依赖：#xy-product-skus、.xy-product-price-amount、.xy-sku-id-input
 */
.xy-product-skus {
	margin: 12px 0 14px;
	width: 100%;
	max-width: 100%;
	box-sizing: border-box;
}
.xy-sku-chips {
	display: flex;
	flex-wrap: wrap;
	gap: var(--xy-sku-chip-gap, 8px);
	list-style: none;
	margin: 0;
	padding: 0;
}
.xy-sku-chip {
	appearance: none;
	-webkit-appearance: none;
	margin: 0;
	padding: var(--xy-sku-chip-pad, 8px 14px);
	min-height: 36px;
	border: var(--xy-sku-chip-border-width, 1.5px) solid var(--xy-sku-chip-border, #ccc);
	border-radius: var(--xy-sku-chip-radius, 8px);
	background: var(--xy-sku-chip-bg, #fff);
	color: var(--xy-sku-chip-fg, #222);
	font-size: var(--xy-sku-chip-size, 13px);
	line-height: 1.3;
	cursor: pointer;
	transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
	box-sizing: border-box;
	text-align: left;
	display: inline-flex;
	align-items: center;
	gap: 8px;
	max-width: 100%;
}
.xy-sku-chip.has-media {
	padding: 6px 12px 6px 6px;
}
.xy-sku-chip-media {
	flex: 0 0 auto;
	width: 36px;
	height: 36px;
	border-radius: 6px;
	overflow: hidden;
	background: var(--xy-sku-chip-media-bg, #f3f3f3);
	border: 1px solid var(--xy-sku-chip-media-border, #e6e6e6);
}
.xy-sku-chip-media img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}
.xy-sku-chip:hover {
	border-color: var(--xy-sku-chip-border-hover, var(--xy-skin-primary, #888));
	background: var(--xy-sku-chip-bg-hover, #fafafa);
}
.xy-sku-chip:focus {
	outline: none;
	box-shadow: var(--xy-sku-chip-focus-shadow, 0 0 0 3px rgba(0, 0, 0, 0.12));
}
.xy-sku-chip.is-on {
	border-color: var(--xy-sku-chip-on-border, var(--xy-skin-primary, #666));
	background: var(--xy-sku-chip-on-bg, #f5f5f5);
	color: var(--xy-sku-chip-on-fg, #111);
	box-shadow: var(--xy-sku-chip-on-shadow, inset 0 0 0 1px var(--xy-skin-primary, #666));
	font-weight: 600;
}
.xy-sku-chip.is-on .xy-sku-chip-price {
	color: var(--xy-sku-chip-on-fg, #111);
}
.xy-sku-chip-name {
	display: inline;
}
.xy-sku-chip-price {
	display: inline;
	margin-left: 6px;
	font-weight: 600;
	color: var(--xy-sku-chip-price-fg, #555);
	font-variant-numeric: tabular-nums;
}
.xy-product-skus.is-need .xy-sku-chips {
	animation: xy-sku-shake 0.35s ease;
}
@keyframes xy-sku-shake {
	0%, 100% { transform: translateX(0); }
	25% { transform: translateX(-4px); }
	75% { transform: translateX(4px); }
}
@media (max-width: 640px) {
	.xy-sku-chip {
		flex: 1 1 calc(50% - 8px);
		min-width: 120px;
	}
}