/* ========== Banner ========== */
:root {
	--primary: #3b82f6;
}

.banner {
	height: 400px;
	position: relative;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
	background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
}

.banner-bg img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	opacity: 0.4;
	position: absolute;
	inset: 0;
}

.banner-overlay {
	position: absolute;
	inset: 0;
	background: radial-gradient(circle at center, transparent 0%, rgba(15, 23, 42, 0.8) 100%);
}

.banner-content {
	position: relative;
	z-index: 10;
	text-align: center;
}

.banner-title {
	font-size: 56px;
	font-weight: 700;
	margin-bottom: 16px;
	text-shadow: 0 4px 20px rgba(0, 180, 160, 0.3);

	background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 50%, var(--purple) 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;

}

.banner-subtitle {
	font-size: 18px;
	color: rgba(255, 255, 255, 0.8);
	letter-spacing: 4px;
}

/* ========== 导航 ========== */
.category-section {
	padding: 20px 0 0 0;
	border-bottom: 1px solid rgba(0, 0, 0, 0.06);
	position: sticky;
	top: 0;
	background: #fff;
	z-index: 100;
}

.category-list {
	display: flex;
	justify-content: center;
	gap: 200px;
	flex-wrap: wrap;
}

.category-item {
	font-size: 17px;
	font-weight: 500;
	color: var(--fg-muted);
	cursor: pointer;
	padding: 12px 0;
	position: relative;
	transition: all 0.3s ease;
	text-decoration: none;
}

.category-item::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 50%;
	transform: translateX(-50%);
	width: 0;
	height: 3px;
	background: linear-gradient(90deg, var(--blue), var(--purple));
	border-radius: 2px;
	transition: width 0.3s ease;
}

.category-item:hover,
.category-item.active {
	color: var(--primary);
}

.category-item:hover::after,
.category-item.active::after {
	width: 50%;
}




/* ========== 产品概述 ========== */
.overview-box {
	align-items: center;
}

.overview-text-content {
	max-width: 1400px;
	    margin: 0 auto;
}
.overview-visual img{
	max-width: 70%;
}
.overview-desc {
	font-size: 16px;
	color: var(--fg-muted);
	line-height: 2;
	text-align: justify;
	margin-bottom: 30px;
	text-align: center;
	text-indent: 2em;
}

.overview-tags {
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
}

.tag {
	padding: 6px 16px;
	background: rgba(59, 130, 246, 0.08);
	color: var(--blue);
	border-radius: 20px;
	font-size: 13px;
	font-weight: 500;
}

.overview-visual {
	flex: 1;
	max-width: 100%;
	overflow: hidden;
}

.overview-visual img {
	height: auto;
	display: block;
	margin: 0 auto;
}

/* ========== 产品功能 (一行4个) ========== */
.feature-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.feature-card {
	background: #fff;
	border-radius: 16px;
	padding: 28px 24px;
	border: 1px solid rgba(59, 130, 246, 0.15);
	transition: all 0.3s ease;
	position: relative;
	overflow: hidden;
	z-index: 6;
}

.feature-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 15px 40px rgba(59, 130, 246, 0.1);
	border-color: rgba(59, 130, 246, 0.15);
}

.feature-icon {
	width: 48px;
	height: 48px;
	background: linear-gradient(135deg, rgba(0, 180, 160, 0.1), rgba(59, 130, 246, 0.1));
	border-radius: 12px;
	display: flex;
	overflow: hidden;
	align-items: center;
	justify-content: center;
	margin-bottom: 20px;
	color: var(--blue);
}

.feature-icon img {
	width: 100%;
	height: 100%;
}

.feature-title {
	font-size: 18px;
	font-weight: 600;
	color: var(--fg);
	margin-bottom: 12px;
}

.feature-desc {
	font-size: 14px;
	color: var(--fg-muted);
	line-height: 1.8;
}

/* ========== 产品优势 (3列) ========== */
.advantage-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 30px;
}

.advantage-card {
	background: #fff;
	border-radius: 20px;
	padding: 40px 30px;
	border: 1px solid rgba(59, 130, 246, 0.15);
	text-align: center;
	transition: all 0.3s ease;
	position: relative;
	z-index: 6;
}

.advantage-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 50%;
	transform: translateX(-50%);
	width: 60px;
	height: 4px;
	background: linear-gradient(90deg, var(--cyan), var(--blue));
	border-radius: 0 0 4px 4px;
	opacity: 0;
	transition: opacity 0.3s;
}

.advantage-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 20px 50px rgba(59, 130, 246, 0.08);
}

.advantage-card:hover::before {
	opacity: 1;
}

.advantage-icon {
	width: 64px;
	height: 64px;
	background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(59, 130, 246, 0.1));
	border-radius: 50%;
	margin: 0 auto 24px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--purple);
}

.advantage-icon img {
	width: 100%;
	height: 100%;
}

.advantage-title {
	font-size: 20px;
	font-weight: 600;
	color: var(--fg);
	margin-bottom: 16px;
}

.advantage-desc {
	font-size: 14px;
	color: var(--fg-muted);
	line-height: 1.9;
}

/* ========== 应用场景 (2列，图文穿插) ========== */
.scenario-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 40px;
}

.scenario-card {
	background: #fff;
	border-radius: 20px;
	overflow: hidden;
	border: 1px solid rgba(59, 130, 246, 0.15);
	transition: all 0.3s ease;
	position: relative;
	z-index: 6;
}

.scenario-card:hover {
	box-shadow: 0 15px 40px rgba(59, 130, 246, 0.08);
	transform: translateY(-4px);
}

.scenario-header {
	background: linear-gradient(165deg, #00d4c0 0%, #5aa3fa 50%, #9b6ff8 100%);
	padding: 24px 30px;
	border-bottom: 1px solid rgba(59, 130, 246, 0.05);
	display: flex;
	align-items: center;
	gap: 15px;
}

.scenario-icon {
	width: 40px;
	height: 40px;
	background: #fff;
	border-radius: 10px;
	display: flex;
	overflow: hidden;
	align-items: center;
	justify-content: center;
	color: var(--blue);
	box-shadow: 0 4px 10px rgba(59, 130, 246, 0.1);
}

.scenario-icon img {
	width: 100%;
	height: 100%;
}

.scenario-title {
	font-size: 18px;
	font-weight: 600;
	color: #fff;
}

.scenario-body {
	padding: 30px;
}

.scenario-desc {
	font-size: 15px;
	color: var(--fg-muted);
	line-height: 1.9;
	text-align: justify;
}

/* ========== 响应式 ========== */
@media (max-width: 1200px) {
	.feature-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 1024px) {
	.overview-box {
		flex-direction: column;
	}

	.overview-visual {
		max-width: 100%;
		width: 100%;
	}

	.advantage-grid,
	.scenario-grid {
		grid-template-columns: 1fr;
	}

	.advantage-grid,
	.feature-grid,
	.scenario-grid {
		gap: 20px;
	}
}

@media (max-width: 768px) {
	.container {
		padding: 0 20px;
	}
.overview-text-content{
	max-width: 100%;
	margin-bottom: 25px;
}
	.banner-title {
		font-size: 26px;
	}

	.overview-desc {
		font-size: 14px;
		margin-bottom: 0;
	}

	.overview-box {
		gap: 20px;
	}

	.advantage-title {
		font-size: 18px;
	}

	.feature-card {
		padding: 20px;
		display: flex;
		flex-wrap: wrap;
	}

	.advantage-card,
	.scenario-body {
		padding: 20px;
	}

	.feature-title {
		margin-bottom: 20px;
		align-self: center;
		margin-left: 15px;
	}

	.banner-title {
		font-size: 26px;
	}

	.banner-subtitle {
		font-size: 15px;
		letter-spacing: 2px;
	}

	.feature-grid {
		grid-template-columns: 1fr;
	}

	.category-list {
		justify-content: space-between;
		gap: 0;
	}

	.category-section {
		padding: 0;
	}

	.scenario-desc {
		font-size: 14px;
	}

	.category-item {
		font-size: 15px
	}

	.banner {
		height: 250px;
	}
}