* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
:root {
	--primary: hsl(215, 60%, 28%);
	--primary-foreground: hsl(210, 40%, 98%);
	--secondary: hsl(25, 95%, 45%);
	--secondary-foreground: hsl(210, 40%, 98%);
	--background: hsl(0, 0%, 100%);
	--foreground: hsl(222, 84%, 4.9%);
	--muted: hsl(210, 40%, 96.1%);
	--muted-foreground: hsl(215, 16%, 46.9%);
	--border: hsl(214, 31.8%, 91.4%);
}

body {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	background: var(--background);
	color: var(--foreground);
	line-height: 1.6;
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 1rem;
}

/* Header */
header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	background: rgba(255, 255, 255, 0.95);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--border);
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
	z-index: 1000;
}

.header-content {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 80px;
	padding: 0 2rem;
}

.logo {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.logo-icon {
	width: 40px;
	height: 40px;
	background: var(--primary);
	border-radius: 8px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: white;
	font-weight: bold;
	font-size: 1.25rem;
}

.logo-text h1 {
	font-size: 1.125rem;
	color: var(--primary);
	font-weight: bold;
}

.logo-text p {
	font-size: 0.625rem;
	color: var(--muted-foreground);
	text-transform: uppercase;
	letter-spacing: 0.1em;
}

nav {
	display: flex;
	gap: 2rem;
}

nav a {
	text-decoration: none;
	color: var(--foreground);
	font-size: 0.875rem;
	font-weight: 500;
	opacity: 0.8;
	transition: all 0.3s;
}

nav a:hover, nav a.active {
	color: var(--primary);
	opacity: 1;
}

.header-actions {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.phone-info {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.phone-icon {
	width: 32px;
	height: 32px;
	border-radius: 50%;
	background: hsl(215, 60%, 28%, 0.1);
	display: flex;
	align-items: center;
	justify-content: center;
}

.phone-text p:first-child {
	font-size: 0.625rem;
	color: var(--muted-foreground);
}

.phone-text p:last-child {
	font-weight: bold;
	color: var(--primary);
}

.btn {
	padding: 0.75rem 1.5rem;
	border-radius: 0.375rem;
	font-weight: bold;
	cursor: pointer;
	transition: all 0.3s;
	border: none;
	font-size: 0.875rem;
	text-decoration: none;
	display: inline-block;
}

.btn-primary {
	background: var(--secondary);
	color: var(--secondary-foreground);
}

.btn-primary:hover {
	opacity: 0.9;
	transform: translateY(-1px);
}

/* Hero Section */
.hero {
	position: relative;
	padding: 8rem 0 4rem;
	overflow: hidden;
	background: linear-gradient(135deg, hsl(215, 60%, 28%, 0.05), hsl(25, 95%, 45%, 0.05));
}

.hero-bg {
	position: absolute;
	inset: 0;
	z-index: 0;
}

.hero-bg img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	opacity: 0.15;
}

.hero-content {
	position: relative;
	z-index: 10;
	text-align: center;
	max-width: 56rem;
	margin: 0 auto;
}

.hero-badge {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	padding: 0.5rem 1rem;
	border-radius: 9999px;
	background: hsl(215, 60%, 28%, 0.1);
	border: 1px solid hsl(215, 60%, 28%, 0.2);
	color: var(--primary);
	font-size: 0.875rem;
	font-weight: 600;
	margin-bottom: 1.5rem;
}

.hero h1 {
	font-size: 3rem;
	font-weight: bold;
	line-height: 1.2;
	margin-bottom: 1.5rem;
	color: var(--primary);
}

.hero h1 .highlight {
	color: var(--secondary);
}
.hero h2 {
	font-size: 3rem;
	font-weight: bold;
	color: var(--foreground);
	margin-bottom: 1.5rem;
	line-height: 1.2;
}

.hero h2 .highlight {
	color: var(--secondary);
}
.hero-description {
	font-size: 1.25rem;
	color: var(--muted-foreground);
	margin-bottom: 2.5rem;
	line-height: 1.8;
}
.hero-stats {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 2rem;
	margin-top: 3rem;
	padding-top: 3rem;
	border-top: 1px solid var(--border);
}
.stat-item {
	text-align: center;
}

.stat-number {
	font-size: 2rem;
	font-weight: bold;
	color: var(--primary);
	margin-bottom: 0.5rem;
}

.stat-label {
	font-size: 0.875rem;
	color: var(--muted-foreground);
}

.hero p {
	font-size: 1.125rem;
	color: var(--muted-foreground);
	margin-bottom: 2.5rem;
	line-height: 1.75;
}

.hero-actions {
	display: flex;
	gap: 1rem;
	justify-content: center;
	flex-wrap: wrap;
}

.btn-lg {
	padding: 1.25rem 2.5rem;
	font-size: 1.125rem;
}

.btn-outline {
	background: transparent;
	border: 2px solid var(--primary);
	color: var(--primary);
}

.btn-outline:hover {
	background: var(--primary);
	color: white;
}

/* Testing Categories */
.testing-categories {
	padding: 5rem 0;
	background: var(--background);
}

.section-header {
	text-align: center;
	max-width: 42rem;
	margin: 0 auto 4rem;
}

.section-header h2 {
	font-size: 2.5rem;
	font-weight: bold;
	color: var(--primary);
	margin-bottom: 1rem;
}

.section-divider {
	width: 5rem;
	height: 0.375rem;
	background: var(--secondary);
	margin: 0 auto 1.5rem;
}

.section-header p {
	font-size: 1.125rem;
	color: var(--muted-foreground);
	line-height: 1.75;
}

.category-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 2rem;
}

.category-card {
	background: white;
	border: 1px solid var(--border);
	border-radius: 12px;
	overflow: hidden;
	transition: all 0.3s;
	cursor: pointer;
}

.category-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 4px;
	background: var(--secondary);
	transform: scaleX(0);
	transition: transform 0.3s;
}

.category-card:hover {
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
	border-color: hsl(215, 60%, 28%, 0.3);
	transform: translateY(-4px);
}

.category-card:hover::before {
	transform: scaleX(1);
}

.category-image {
	position: relative;
	height: 200px;
	overflow: hidden;
}

.category-image img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.5s;
}

.category-card:hover .category-image img {
	transform: scale(1.05);
}

.category-image::after {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.2) 50%, transparent);
}

.category-title-overlay {
	position: absolute;
	bottom: 1rem;
	left: 1rem;
	right: 1rem;
	color: white;
	font-size: 1.5rem;
	font-weight: bold;
	text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8), 0 1px 3px rgba(0, 0, 0, 0.9);
	z-index: 10;
	line-height: 1.3;
}

.category-content {
	padding: 2rem;
}

.category-card h3 {
	font-size: 1.25rem;
	font-weight: bold;
	color: var(--primary);
	margin-bottom: 1rem;
}

.category-items {
	list-style: none;
	margin-bottom: 1.5rem;
}

.category-items li {
	padding: 0.5rem 0;
	color: var(--muted-foreground);
	font-size: 0.875rem;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.category-items li::before {
	content: '';
	width: 4px;
	height: 4px;
	background: var(--secondary);
	border-radius: 50%;
	flex-shrink: 0;
}

.category-link {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	color: var(--primary);
	font-weight: bold;
	font-size: 0.875rem;
	text-decoration: none;
	transition: all 0.3s;
}

.category-link:hover {
	color: var(--secondary);
	gap: 0.75rem;
}
.process-all {
	padding: 5rem 0;
	background: var(--background);
}
.process-steps {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 2rem;
	margin-top: 3rem;
}

.process-step {
	text-align: center;
	position: relative;
}

.process-step::after {
	content: '→';
	position: absolute;
	top: 2rem;
	right: -1rem;
	font-size: 2rem;
	color: var(--secondary);
	opacity: 0.3;
}

.process-step:last-child::after {
	display: none;
}

.process-number {
	width: 64px;
	height: 64px;
	background: var(--primary);
	color: white;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.5rem;
	font-weight: bold;
	margin: 0 auto 1rem;
}

.process-step h4 {
	font-size: 1.125rem;
	font-weight: bold;
	color: var(--foreground);
	margin-bottom: 0.5rem;
}

.process-step p {
	color: var(--muted-foreground);
	font-size: 0.875rem;
}

/* Advantages */
.advantages {
	padding: 5rem 0;
	background: var(--background);
}
.advantages_all {
	padding: 5rem 0;
	background: var(--muted);
}
.advantage-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 2rem;
	margin-top: 3rem;
}

.advantage-item {
	display: flex;
	gap: 1rem;
	padding: 2rem;
	background: white;
	border: 1px solid var(--border);
	border-radius: 1rem;
	transition: all 0.3s;
}

.advantage-item:hover {
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
	border-color: var(--secondary);
}
.advantages-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 2rem;
}
.advantage-icon {
	flex-shrink: 0;
	width: 50px;
	height: 50px;
	background: hsl(25, 95%, 45%, 0.1);
	border-radius: 10px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.5rem;
}

.advantage-content h4 {
	font-size: 1.125rem;
	font-weight: bold;
	color: var(--primary);
	margin-bottom: 0.5rem;
}

.advantage-content p {
	font-size: 0.875rem;
	color: var(--muted-foreground);
	line-height: 1.6;
}
.advantage-card {
	background: white;
	padding: 2rem;
	border-radius: 12px;
	text-align: center;
	transition: all 0.3s;
}

.advantage-card:hover {
	transform: translateY(-4px);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
	width: 64px;
	height: 64px;
	background: hsl(25, 95%, 45%, 0.1);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0 auto 1.5rem;
	font-size: 2rem;
}

.advantage-card h3 {
	font-size: 1.125rem;
	font-weight: bold;
	color: var(--primary);
	margin-bottom: 0.75rem;
}

.advantage-card p {
	color: var(--muted-foreground);
	font-size: 0.875rem;
	line-height: 1.6;
}
/* Lead Form */
/* Contact Form */
.contact-section {
	padding: 5rem 0;
	background: var(--muted);
}

.contact-container {
	background: white;
	border-radius: 16px;
	overflow: hidden;
	box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
	margin: 0 auto;
}
.contact-info {
	background: var(--primary);
	color: var(--primary-foreground);
	padding: 3rem;
	width: 100%;
}
.contact-info h3 {
	font-size: 2rem;
	margin-bottom: 1.5rem;
}

.contact-info p {
	opacity: 0.9;
	margin-bottom: 6px;
	line-height: 1.8;
}

.contact-item {
	display: flex;
	align-items: center;
	gap: 1rem;
	margin-bottom: 1.5rem;
}

/* Submit item styles */
.contact-item.submit-item {
	flex-direction: column;
	align-items: center;
	text-align: center;
	gap: 0;
	margin-top: 2rem;
}

.contact-item.submit-item .submit-btn {
	max-width: 280px;
	width: 100%;
	text-align: center;
	display: block;

}

.contact-item.submit-item p {
	width: 100%;
	word-wrap: break-word;
	line-height: 1.4;
}

.contact-icon {
	width: 48px;
	height: 48px;
	background: rgba(255, 255, 255, 0.1);
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.25rem;
}

.submit-btn {
	width: 100%;
	padding: 1rem;
	background: var(--secondary);
	color: white;
	border: none;
	border-radius: 0.375rem;
	font-weight: bold;
	font-size: 1rem;
	cursor: pointer;
	transition: all 0.3s;
	text-decoration: none;
}
.submit-btn:hover {
	opacity: 0.9;
	transform: translateY(-2px);
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.lead-form-section {
	padding: 5rem 0;
	background: linear-gradient(135deg, var(--primary), hsl(215, 60%, 35%));
	color: white;
}

.lead-form-container {
	max-width: 600px;
	margin: 0 auto;
	text-align: center;
}

.lead-form-container h2 {
	font-size: 2.5rem;
	font-weight: bold;
	margin-bottom: 1rem;
}

.lead-form-container p {
	font-size: 1.125rem;
	opacity: 0.9;
	margin-bottom: 2.5rem;
}

.lead-form {
	background: white;
	padding: 2.5rem;
	border-radius: 1rem;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.form-group {
	margin-bottom: 1.5rem;
	text-align: left;
}

.form-group label {
	display: block;
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--primary);
	margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
	width: 100%;
	padding: 0.875rem;
	border: 2px solid var(--border);
	border-radius: 0.5rem;
	font-size: 0.875rem;
	transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
	outline: none;
	border-color: var(--primary);
	box-shadow: 0 0 0 3px hsl(215, 60%, 28%, 0.1);
}

.form-group textarea {
	min-height: 100px;
	resize: vertical;
}

.form-submit {
	width: 100%;
	padding: 1.25rem;
	background: var(--secondary);
	color: white;
	border: none;
	border-radius: 0.5rem;
	font-size: 1.125rem;
	font-weight: bold;
	cursor: pointer;
	transition: all 0.3s;
}

.form-submit:hover {
	background: hsl(25, 95%, 40%);
	transform: translateY(-2px);
	box-shadow: 0 10px 30px rgba(230, 119, 23, 0.3);
}

.form-note {
	margin-top: 1rem;
	font-size: 0.75rem;
	color: var(--muted-foreground);
}

/* Footer */
footer {
	background: hsl(222, 47%, 4%);
	color: hsl(215, 20%, 65%);
	padding: 3rem 0 1rem;
}

.footer-content {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 3rem;
	margin-bottom: 3rem;
}

.footer-section h4 {
	color: white;
	font-weight: bold;
	margin-bottom: 1.5rem;
}

.footer-section ul {
	list-style: none;
}

.footer-section ul li {
	margin-bottom: 1rem;
}

.footer-section a {
	color: hsl(215, 20%, 65%);
	text-decoration: none;
	font-size: 0.875rem;
	transition: color 0.3s;
}

.footer-section a:hover {
	color: var(--secondary);
}

.footer-bottom {
	padding-top: 2rem;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	text-align: center;
}

.footer-bottom p {
	font-size: 0.75rem;
	margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
	.header-content {
		padding: 0 1rem;
	}

	nav, .phone-info {
		display: none;
	}

	.hero {
		padding: 6rem 0 3rem;
	}

	.hero h1 {
		font-size: 2rem;
	}

	.hero p {
		font-size: 1rem;
	}

	.section-header h2 {
		font-size: 2rem;
	}

	.process-step::after {
		display: none;
	}

	/* Contact info responsive */
	.contact-info {
		padding: 2rem;
	}

	.contact-info h3 {
		font-size: 1.5rem;
	}

	.contact-item {
		flex-direction: column;
		align-items: flex-start;
		gap: 0.5rem;
	}

	.contact-icon {
		width: 40px;
		height: 40px;
		font-size: 1rem;
	}

	.contact-section {
		padding: 3rem 0;
	}

	/* Submit item responsive */
	.contact-item.submit-item .submit-btn {
		max-width: 240px;
		font-size: 0.875rem;
		padding: 0.875rem;
	}

	.contact-item.submit-item p {
		font-size: 0.6875rem;
		line-height: 1.3;
	}
	.btn {
		padding: 0.15rem 0.5rem;
	}
}

/* 默认：PC显示，移动端隐藏 */
 .icon-pc {
	 display: block !important;
 }
.icon-m {
	display: none !important;
}
.icon-m a {
	display: flex;
	flex-direction: column;
	align-items: center;
	color: #ff6600;
	text-decoration: none;
	font-size: 18px;
}
.footer-section-pc {
	display: block !important;
}
.footer-section-m {
	display: none !important;
}
/* 屏幕小于 768px 时（移动端）切换显示 */
@media (max-width: 768px) {
	.icon-pc {
		display: none !important;
	}
	.logo-icon{
		background: var(--secondary);
	}
	.icon-m {
		display: block !important;
	}
	.footer-section-pc {
		display: none !important;
	}
	.footer-section-m {
		display: block !important;
	}
	.footer-content {
		/* 移动端改为 2列网格，实现你要的排版 */
		grid-template-columns: 1fr 1fr;
	}
	/* 第1个元素 → 独占第一行 */
	.footer-content > *:nth-child(1) {
		grid-column: 1 / -1;
		min-width: 250px;
	}
	/* 第2、3个元素 → 并排第二行 */
	.footer-content > *:nth-child(2),
	.footer-content > *:nth-child(3) {
		grid-column: span 1;
	}
	/* 第4个元素 → 独占第三行 */
	.footer-content > *:nth-child(4) {
		grid-column: 1 / -1;
		min-width: 250px;
	}
}