/* ===== 产品中心：左侧主推大图 + 右侧 2×2 产品卡片 ===== */

.lunbo {
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	box-sizing: border-box;
	padding: 28px 4%;
	margin-top: 2%;
}

.showcase {
	width: 100%;
	/* max-width: 1256px;
	height: min(500px, 62vh); */
	min-height: 400px;
	display: flex;
	gap: 18px;
}

/* 左侧主推产品 */
.showcase-main {
	position: relative;
	flex: 0 0 37%;
	overflow: hidden;
	background: #111;
}

.showcase-main img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}



.showcase-btns {
	position: absolute;
		left: 50%;
		bottom: 24px;
		transform: translateX(-50%);
		z-index: 2;
		display: flex;
		flex-direction: column;
		align-items: center;
		gap: 14px;
}

.showcase-btns h3 {
	font-size: 22px;
	font-weight: 700;
	color: #222;
	margin: 0;
	line-height: 1.3;
	text-shadow: 0 1px 4px rgba(0,0,0,.5);	
}

.showcase-btns h3 em{
	font-style: normal;
	font-size: 11px;
	font-weight: 400;
	color: #aaa;
	letter-spacing: 1px;
	margin-left: 4px;
}


.showcase-btns .showcase-desc {
	font-size: 13px;
	color: #999;
	margin: 4px 0 0;
	line-height: 1.5;
	text-shadow: 0 1px 4px rgba(0,0,0,.5);
}

.showcase-btns .btn-row {
	display: flex;
	gap: 14px;
}


.showcase-btns a {
	display: inline-block;
	padding: 10px 26px;
	font-size: 13px;
	line-height: 1;
	text-decoration: none;
	transition: all .3s;
}



.btn-inquiry {
	background: #e60012;
	color: #fff;
}

.btn-inquiry:hover {
	background: #c3000f;
}

.btn-more {
	background: #fff;
	color: #333;
	border: 1px solid #d9d9d9;
}

.btn-more:hover {
	background: #e60012;
	color: #fff;
	border-color: #e60012;
}

/* 右侧产品卡片（2×2 网格：气动 / 电动 / 自力式 / 科里奥利） */
.showcase-cards {
	flex: 1;
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	grid-template-rows: repeat(2, 1fr);
	gap: 18px;
}

.showcase-card {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	text-align: left;
	background: #fff;
	border: 1px solid #ececec;
	text-decoration: none;
	transition: box-shadow .3s, transform .3s;
	min-height: 0;
}

.showcase-card:hover {
	box-shadow: 0 8px 24px rgba(0, 0, 0, .08);
	transform: translateY(-4px);
}

.showcase-card .pic {
	width: 100%;
	flex: 1;
	overflow: hidden;
	min-height: 0;
}

.showcase-card h3,
.showcase-card .showcase-desc,
.showcase-card .card-btn {
	padding-left: 16px;
	padding-right: 16px;
}

.showcase-card .pic img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.showcase-card h3 {
	margin: 10px 0 6px;
	font-family: inherit;
	font-size: 20px;
	font-weight: 700;
	color: #222;
}

.showcase-card h3 em {
	font-style: normal;
	font-size: 11px;
	font-weight: 400;
	color: #aaa;
	letter-spacing: 1px;
	margin-left: 4px;
}

.showcase-card .showcase-desc {
	font-size: 13px;
	color: #888;
	line-height: 1.6;
	margin: 0 0 10px;
}

.showcase-card .card-btn {
	display: inline-block;
	font-size: 13px;
	line-height: 1.4;
	color: #888;
	text-decoration: none;
	transition: color .3s;
}

.showcase-card:hover .card-btn {
	color: #e60012;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
	.lunbo {
		padding: 24px 4%;
	}

	.showcase {
		flex-direction: column;
		height: auto;
		min-height: 0;
	}

	.showcase-main {
		flex: none;
		height: 260px;
	}

	.showcase-cards {
		grid-template-columns: 1fr 1fr;
	}

	.showcase-card .pic {
		flex: none;
		height: 180px;
	}
}

@media (max-width: 520px) {
	.showcase-cards {
		grid-template-columns: 1fr;
	}
}