/* 產品內頁：四分頁導覽（購買指南／商品評論／常見問題／實績案例） */
/* 桌面端樣式（對齊截圖：文字+底線指示） */
.product-tabs { margin: 48px 0 16px; }
.product-tabs-nav {
	display: flex;
	align-items: center;
	gap: 28px;
	border-bottom: 1px solid #ddd;
	padding-bottom: 8px;
}
.product-tabs-nav .tab-item {
	appearance: none;
	-webkit-appearance: none;
	background: transparent !important; /* 強制無背景 */
	border: 0 !important;
	box-shadow: none !important;
	border-radius: 0 !important;
	padding: 6px 0;
	font-size: 15px;
	color: #000 !important; /* 強制黑字 */
	cursor: pointer;
	position: relative;
	text-decoration: none !important;
	transition: none !important; /* 關閉所有過渡動畫 */
}
.product-tabs-nav .tab-item:hover,
.product-tabs-nav .tab-item:focus,
.product-tabs-nav .tab-item:active {
	background: transparent !important; /* 不要任何背景色 */
	box-shadow: none;
	border: 0;
	color: #000; /* 非選取在互動狀態也保持黑色 */
	transform: none !important; /* 關閉縮放/位移等特效 */
	text-decoration: none !important;
}
/* 強制所有狀態皆為黑字，且無藍色底線/背景 */
.product-tabs-nav .tab-item[aria-selected="true"],
.product-tabs-nav .tab-item.active,
.product-tabs-nav .tab-item.active:hover,
.product-tabs-nav .tab-item:hover,
.product-tabs-nav .tab-item:focus,
.product-tabs-nav .tab-item:active { color: #000 !important; background: transparent !important; box-shadow: none !important; }
.product-tabs-nav .tab-item.active::after { display: none !important; }

/* 行動端：保持同行顯示，自動縮放寬度 */
@media (max-width: 768px) {
	.product-tabs {
		margin-top: 32px;
	}
	.product-tabs-nav {
		gap: 4px;
		flex-wrap: nowrap;
	}
	.product-tabs-nav .tab-item {
		flex: 1;
		padding: 10px 4px;
		font-size: 13px;
		white-space: nowrap;
		overflow: hidden;
		text-overflow: ellipsis;
		min-width: 0;
		text-align: center;
	}
}

/* 超小螢幕：進一步縮小間距和字體 */
@media (max-width: 480px) {
	.product-tabs-nav {
		gap: 2px;
	}
	.product-tabs-nav .tab-item {
		padding: 8px 2px;
		font-size: 12px;
	}
}

/* 極小螢幕：最小化但保持可讀性 */
@media (max-width: 360px) {
	.product-tabs-nav .tab-item {
		padding: 6px 1px;
		font-size: 11px;
	}
}

/* 工具類：隱藏舊的內部錨點導覽 */
.product-anchor-nav { display: none !important; }


/* 選取狀態：藍色文字與藍色底線 */
.product-tabs-nav .tab-item.active,
.product-tabs-nav .tab-item[aria-selected="true"] {
	color: #2a63a6 !important;
	background: transparent !important;
}

/* 內頁四區塊：隱藏任何殘留標題/開合 UI */
.case-studies-header,
.purchase-guide-header,
.taincom-reviews-header { display: none !important; }
.product-tabs-nav .tab-item.active::after,
.product-tabs-nav .tab-item[aria-selected="true"]::after {
	content: '';
	display: block !important;
	position: absolute;
	left: 0;
	bottom: -9px;
	height: 3px;
	width: 100%;
	background: #2a63a6;
}

/* 產品簡介分頁樣式 */
.product-tab-content {
	margin-top: 24px;
	margin-bottom: 40px;
}

.short-description-section {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

.short-description-content {
	font-size: 1rem;
	color: #666;
	line-height: 1.8;
}

.short-description-content p {
	margin-bottom: 16px;
}

.short-description-content p:last-child {
	margin-bottom: 0;
}

@media (max-width: 768px) {
	.product-tab-content {
		margin-top: 20px;
		margin-bottom: 32px;
	}
	
	.short-description-section {
		padding: 0 16px;
	}
	
	.short-description-content {
		font-size: 0.95rem;
		line-height: 1.7;
	}
}