.hvac-hero {
	position: relative;
	height: 600px;
	background: linear-gradient(135deg, #0a192f 0%, #172a45 50%, #0a192f 100%);
	overflow: hidden;
}

.hvac-hero-bg {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background-image:
		url('/static/images/霖邻工程/7.31拍摄/DJI_20250729095044_0196_D.jpg');
	background-size: cover;
	background-position: center;
	opacity: 0.3;
}

.hvac-hero-overlay {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: linear-gradient(180deg, rgba(10, 25, 47, 0.8) 0%,
		rgba(10, 25, 47, 0.6) 50%, rgba(10, 25, 47, 0.9) 100%);
}

.hvac-hero-content {
	position: relative;
	z-index: 2;
	max-width: 1400px;
	margin: 0 auto;
	padding: 120px 50px 80px;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
}

.hvac-hero-left h1 {
	font-size: 56px;
	font-weight: 700;
	color: #fff;
	margin-bottom: 20px;
	line-height: 1.2;
}

.hvac-hero-left h1 span {
	color: #64ffda;
}

.hvac-hero-left p {
	font-size: 18px;
	color: rgba(255, 255, 255, 0.8);
	line-height: 1.8;
	margin-bottom: 30px;
}

.hvac-hero-tags {
	display: flex;
	gap: 15px;
	margin-bottom: 40px;
}

.hvac-hero-tag {
	padding: 10px 20px;
	background: rgba(100, 255, 218, 0.1);
	border: 1px solid rgba(100, 255, 218, 0.3);
	border-radius: 8px;
	color: #64ffda;
	font-size: 14px;
}

.hvac-hero-right {
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid rgba(255, 255, 255, 0.1);
	border-radius: 20px;
	padding: 40px;
}

.hvac-stats-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 30px;
}

.hvac-stat-item {
	text-align: center;
	padding: 20px;
	background: rgba(100, 255, 218, 0.05);
	border-radius: 12px;
}

.hvac-stat-number {
	font-size: 42px;
	font-weight: 700;
	color: #64ffda;
	line-height: 1;
}

.hvac-stat-label {
	font-size: 14px;
	color: rgba(255, 255, 255, 0.7);
	margin-top: 10px;
}

/* 服务流程时间线 */
.hvac-process {
	padding: 100px 0;
	background: #f8f9fa;
}

.hvac-process-container {
	max-width: 1400px;
	margin: 0 auto;
	padding: 0 50px;
}

.hvac-process-header {
	text-align: center;
	margin-bottom: 80px;
}

.hvac-process-header h2 {
	font-size: 42px;
	font-weight: 700;
	color: #0a192f;
	margin-bottom: 15px;
}

.hvac-process-header p {
	font-size: 16px;
	color: #666;
}

.hvac-timeline {
	display: flex;
	justify-content: space-between;
	position: relative;
	padding: 40px 0;
}

.hvac-timeline::before {
	content: '';
	position: absolute;
	top: 50%;
	left: 0;
	right: 0;
	height: 4px;
	background: linear-gradient(90deg, #64ffda, #0a192f, #64ffda);
	transform: translateY(-50%);
}

.hvac-timeline-item {
	flex: 1;
	text-align: center;
	position: relative;
	padding: 0 20px;
}

.hvac-timeline-dot {
	width: 60px;
	height: 60px;
	background: #0a192f;
	border: 4px solid #64ffda;
	border-radius: 50%;
	margin: 0 auto 30px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #64ffda;
	font-size: 24px;
	font-weight: 700;
	position: relative;
	z-index: 2;
}

.hvac-timeline-content {
	background: #fff;
	border-radius: 16px;
	padding: 30px;
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.hvac-timeline-content h4 {
	font-size: 18px;
	font-weight: 600;
	color: #0a192f;
	margin-bottom: 10px;
}

.hvac-timeline-content p {
	font-size: 14px;
	color: #666;
	line-height: 1.6;
}

/* 服务模块网格 */
.hvac-modules {
	padding: 100px 0;
	background: #fff;
}

.hvac-modules-container {
	max-width: 1400px;
	margin: 0 auto;
	padding: 0 50px;
}

.hvac-modules-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 60px;
}

.hvac-modules-header h2 {
	font-size: 42px;
	font-weight: 700;
	color: #0a192f;
}

.hvac-modules-header p {
	font-size: 16px;
	color: #666;
	max-width: 500px;
}

.hvac-modules-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 30px;
}

.hvac-module-card {
	background: #f8f9fa;
	border-radius: 20px;
	padding: 40px 30px;
	position: relative;
	overflow: hidden;
	transition: all 0.4s ease;
	border: 2px solid transparent;
}

.hvac-module-card:hover {
	background: #0a192f;
	transform: translateY(-10px);
	border-color: #64ffda;
}

.hvac-module-card:hover .hvac-module-title, .hvac-module-card:hover .hvac-module-desc,
	.hvac-module-card:hover .hvac-module-feature {
	color: #fff;
}

.hvac-module-card:hover .hvac-module-icon {
	color: #64ffda;
}

.hvac-module-icon {
	width: 50px;
	height: 50px;
	color: #0a192f;
	margin-bottom: 25px;
}

.hvac-module-title {
	font-size: 20px;
	font-weight: 600;
	color: #0a192f;
	margin-bottom: 15px;
}

.hvac-module-desc {
	font-size: 14px;
	color: #666;
	line-height: 1.7;
	margin-bottom: 20px;
}

.hvac-module-features {
	list-style: none;
	padding: 0;
}

.hvac-module-feature {
	font-size: 13px;
	color: #888;
	padding: 8px 0;
	padding-left: 20px;
	position: relative;
}

.hvac-module-feature::before {
	content: '→';
	position: absolute;
	left: 0;
	color: #64ffda;
}

/* 核心服务突出卡片 */
.hvac-module-card.featured {
	background: linear-gradient(135deg, #0a192f 0%, #172a45 100%);
	border-color: #64ffda;
}

.hvac-module-card.featured .hvac-module-title, .hvac-module-card.featured .hvac-module-desc,
	.hvac-module-card.featured .hvac-module-feature {
	color: #fff;
}

.hvac-module-card.featured .hvac-module-icon {
	color: #64ffda;
}

.hvac-module-badge {
	position: absolute;
	top: 20px;
	right: 20px;
	padding: 6px 12px;
	background: rgba(100, 255, 218, 0.2);
	border-radius: 6px;
	color: #64ffda;
	font-size: 12px;
}

/* 案例展示 */
.hvac-cases {
	padding: 100px 0;
	background: linear-gradient(135deg, #0a192f 0%, #172a45 100%);
}

.hvac-cases-container {
	max-width: 1400px;
	margin: 0 auto;
	padding: 0 50px;
}

.hvac-cases-header {
	text-align: center;
	margin-bottom: 60px;
}

.hvac-cases-header h2 {
	font-size: 42px;
	font-weight: 700;
	color: #fff;
	margin-bottom: 15px;
}

.hvac-cases-header p {
	font-size: 16px;
	color: rgba(255, 255, 255, 0.7);
}

.hvac-cases-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 30px;
}

.hvac-case-card {
	background: rgba(255, 255, 255, 0.05);
	border: 1px solid rgba(255, 255, 255, 0.1);
	border-radius: 20px;
	overflow: hidden;
	transition: all 0.4s ease;
}

.hvac-case-card:hover {
	transform: translateY(-10px);
	border-color: #64ffda;
}

.hvac-case-image {
	height: 200px;
	background-size: cover;
	background-position: center;
}

.hvac-case-content {
	padding: 30px;
}

.hvac-case-title {
	font-size: 18px;
	font-weight: 600;
	color: #fff;
	margin-bottom: 10px;
}

.hvac-case-desc {
	font-size: 14px;
	color: rgba(255, 255, 255, 0.7);
	line-height: 1.6;
	margin-bottom: 20px;
}

.hvac-case-tags {
	display: flex;
	gap: 10px;
}

.hvac-case-tag {
	padding: 6px 12px;
	background: rgba(100, 255, 218, 0.1);
	border-radius: 6px;
	color: #64ffda;
	font-size: 12px;
}

/* 联系区域 */
.hvac-contact {
	padding: 80px 0;
	background: #f8f9fa;
}

.hvac-contact-container {
	max-width: 1400px;
	margin: 0 auto;
	padding: 0 50px;
}

.hvac-contact-box {
	background: #fff;
	border-radius: 20px;
	padding: 60px;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 60px;
	align-items: center;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.hvac-contact-left h2 {
	font-size: 36px;
	font-weight: 700;
	color: #0a192f;
	margin-bottom: 20px;
}

.hvac-contact-left p {
	font-size: 16px;
	color: #666;
	line-height: 1.8;
}

.hvac-contact-right {
	display: flex;
	gap: 20px;
}

.hvac-contact-btn {
	padding: 15px 30px;
	border-radius: 12px;
	font-size: 16px;
	font-weight: 600;
	text-decoration: none;
	transition: all 0.3s ease;
}

.hvac-contact-btn.primary {
	background: #0a192f;
	color: #64ffda;
}

.hvac-contact-btn.primary:hover {
	background: #172a45;
	transform: translateY(-3px);
}

.hvac-contact-btn.secondary {
	background: transparent;
	color: #0a192f;
	border: 2px solid #0a192f;
}

.hvac-contact-btn.secondary:hover {
	background: #0a192f;
	color: #64ffda;
}

@media ( max-width : 1024px) {
	.hvac-hero-content {
		grid-template-columns: 1fr;
		text-align: center;
	}
	.hvac-modules-grid, .hvac-cases-grid {
		grid-template-columns: repeat(2, 1fr);
	}
	.hvac-timeline {
		flex-direction: column;
		gap: 40px;
	}
	.hvac-timeline::before {
		top: 0;
		bottom: 0;
		left: 50%;
		width: 4px;
		height: 100%;
		transform: translateX(-50%);
	}
	.hvac-contact-box {
		grid-template-columns: 1fr;
		text-align: center;
	}
	.hvac-contact-right {
		justify-content: center;
	}
}

@media ( max-width : 768px) {
	.hvac-hero {
		height: 500px;
	}
	.hvac-hero-left h1 {
		font-size: 36px;
	}
	.hvac-modules-grid, .hvac-cases-grid {
		grid-template-columns: 1fr;
	}
	.hvac-stats-grid {
		grid-template-columns: 1fr;
	}
}