.pca-wrap {
	width: 100%;
}

.pca-all-link {
	display: block;
	font-size: 18px;
	font-weight: 700;
	color: #333333;
	text-decoration: none;
	padding: 16px 0;
	border-bottom: 1px solid #e5e5e5;
	transition: color 0.2s ease;
}

.pca-all-link:hover {
	color: #b8860b;
}

.pca-parent-item {
	border-bottom: 1px solid #e5e5e5;
	border-bottom-style: solid;
}

.pca-parent-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 20px 0;
	cursor: default;
}

.pca-parent-item.has-children .pca-parent-head {
	cursor: pointer;
}

.pca-parent-title {
	font-size: 18px;
	font-weight: 700;
	color: #b8860b;
	text-decoration: none;
	position: relative;
	transition: color 0.2s ease;
}

.pca-parent-head {
	gap: 12px;
	transition: background-color 0.3s ease;
}

.pca-parent-title::after {
	content: '';
	position: absolute;
	left: 0;
	bottom: -2px;
	width: 100%;
	height: 2px;
	background-color: #b8860b;
	opacity: 0;
	transition: opacity 0.3s ease;
}

.pca-parent-title:hover::after {
	opacity: 1;
}

/* 关闭下划线时隐藏 ::after */
[class*="pca-underline-"].pca-underline- .pca-parent-title::after,
.pca-underline- .pca-parent-title::after {
	display: none;
}

.pca-parent-title:hover {
	color: #996600;
}

.pca-toggle-icon {
	flex-shrink: 0;
	margin-left: 12px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 14px;
	color: #999999;
	transition: transform 0.6s ease, color 0.6s ease;
}

.pca-toggle-icon svg {
	width: 14px;
	height: 14px;
	transition: fill 0.3s ease;
}

.pca-parent-item.is-open .pca-toggle-icon {
	transform: rotate(90deg);
}

/* 手风琴收缩/展开过渡 */
.pca-children-wrap {
	overflow: hidden;
	max-height: 0;
	transition: max-height 0.35s ease;
}

.pca-parent-item.is-open .pca-children-wrap {
	max-height: 800px;
	transition: max-height 0.5s ease;
}

.pca-children {
	display: flex;
	flex-direction: column;
	padding: 0 0 16px 0;
	border-top: 1px solid #e5e5e5;
}

.pca-child-link {
	display: block;
	font-size: 14px;
	color: #666666;
	text-decoration: none;
	padding: 6px 0 6px 20px;
	transition: color 0.2s ease;
}

.pca-child-link:hover {
	color: #b8860b;
}