* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

a{text-decoration:none}

:root {
	--primary: #003366;
	--secondary: #e74c3c;
	--accent: #3498db;
	--light: #f8f9fa;
	--dark: #2c3e50;
	--gray: #6c757d;
}

body {
	color: #333;
	line-height: 1.6;
	background-color: #fff;
}

.container {
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 20px;
}

.btn {
	display: inline-block;
	background-color: var(--secondary);
	color: white;
	padding: 12px 30px;
	text-decoration: none;
	border-radius: 4px;
	font-weight: 600;
	transition: all 0.3s ease;
	border: none;
	cursor: pointer;
}

.btn:hover {
	background-color: #c0392b;
	transform: translateY(-2px);
	box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-outline {
	background-color: transparent;
	border: 2px solid white;
	color: white;
}

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

section {
	padding: 80px 0;
}

.section-title {
	text-align: center;
	margin-bottom: 50px;
}

.section-title h2 {
	font-size: 36px;
	color: var(--primary);
	margin-bottom: 15px;
	position: relative;
}

.section-title h2:after {
	content: '';
	position: absolute;
	bottom: -10px;
	left: 50%;
	transform: translateX(-50%);
	width: 80px;
	height: 3px;
	background-color: var(--secondary);
}

.section-title p {
	color: var(--gray);
	max-width: 700px;
	margin: 20px auto 0;
}

/* Header Styles */
header {
	background-color: #fff;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
	position: sticky;
	top: 0;
	z-index: 1000;
}

.header-top {
	background-color: var(--primary);
	color: white;
	padding: 8px 0;
	font-size: 14px;
}

.header-top .container {
	display: flex;
	justify-content: space-between;
}

.header-top a {
	color: white;
	text-decoration: none;
	margin-left: 15px;
	transition: color 0.3s;
}

.header-top a:hover {
	color: var(--accent);
}

.header-main {
	padding: 15px 0;
}

.header-main .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

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

.logo img {
	height: 50px;
	margin-right: 10px;
}

.logo h1 {
	font-size: 22px;
	color: var(--primary);
	font-weight: 700;
}

nav ul {
	display: flex;
	list-style: none;
}

nav ul li {
	margin-left: 25px;
	position: relative;
}

nav ul li a {
	text-decoration: none;
	color: #333;
	font-weight: 500;
	font-size: 16px;
	transition: color 0.3s;
	padding: 5px 0;
}

nav ul li a:hover,nav ul li a.on {
	color: var(--secondary);
}

nav ul li a:after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 0;
	height: 2px;
	background-color: var(--secondary);
	transition: width 0.3s;
}

nav ul li a:hover:after {
	width: 100%;
}

/* 下拉菜单样式 */
nav ul li.dropdown {
	position: relative;
}

.dropdown-menu {
	display: none;
	position: absolute;
	top: 100%;
	left: 0;
	background-color: white;
	min-width: 200px;
	box-shadow: 0 8px 16px rgba(0,0,0,0.1);
	border-radius: 4px;
	z-index: 1001;
	padding: 10px 0;
}

.dropdown-menu li {
	margin: 0;
	padding: 0;
}

.dropdown-menu li a {
	display: block;
	padding: 10px 20px;
	color: #333;
	text-decoration: none;
	transition: all 0.3s;
	border-bottom: 1px solid #f0f0f0;
	font-size: 14px;
}

.dropdown-menu li:last-child a {
	border-bottom: none;
}

.dropdown-menu li a:hover {
	background-color: #f8f9fa;
	color: var(--secondary);
	padding-left: 25px;
}

nav ul li.dropdown:hover .dropdown-menu {
	display: block;
}

/* 下拉箭头样式 */
.dropdown > a i {
	margin-left: 5px;
	font-size: 12px;
	transition: transform 0.3s;
}

.dropdown:hover > a i {
	transform: rotate(180deg);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
	display: none;
	background: none;
	border: none;
	font-size: 24px;
	color: var(--primary);
	cursor: pointer;
}

/* 移动端关闭按钮 - 只在移动端显示 */
.mobile-close-btn {
	display: none;
	position: absolute;
	top: 20px;
	right: 20px;
	background: none;
	border: none;
	font-size: 24px;
	color: var(--primary);
	cursor: pointer;
}

/* Full-Screen Banner Styles */
.fullscreen-banner {
	position: relative;
	height: 85vh;
	min-height: 600px;
	overflow: hidden;
	margin: 0;
	padding:0;
}

.banner-container {
	display: flex;
	width: 300%;
	height: 100%;
	transition: transform 0.8s ease-in-out;
}

.banner-slide {
	width: 33.333%;
	height: 100%;
	position: relative;
	background-size: cover;
	background-position: center;
}

.banner-content {
	position: absolute;
	top: 50%;
	left: 10%;
	transform: translateY(-50%);
	color: white;
	max-width: 600px;
	text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.banner-content h2 {
	font-size: 42px;
	margin-bottom: 20px;
	line-height: 1.2;
}

.banner-content p {
	font-size: 20px;
	margin-bottom: 30px;
	line-height: 1.5;
}

.banner-nav {
	position: absolute;
	bottom: 40px;
	left: 50%;
	transform: translateX(-50%);
	display: flex;
	gap: 10px;
}

.banner-dot {
	width: 14px;
	height: 14px;
	border-radius: 50%;
	background-color: rgba(255, 255, 255, 0.5);
	cursor: pointer;
	transition: background-color 0.3s, transform 0.3s;
}

.banner-dot.active {
	background-color: white;
	transform: scale(1.2);
}

.banner-arrow {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	background-color: rgba(0, 0, 0, 0.3);
	color: white;
	width: 60px;
	height: 60px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 24px;
	cursor: pointer;
	transition: background-color 0.3s;
	z-index: 10;
}

.banner-arrow:hover {
	background-color: rgba(0, 0, 0, 0.6);
}

.banner-arrow.prev {
	left: 30px;
}

.banner-arrow.next {
	right: 30px;
}

/* About Section */
.about {
	padding: 80px 0;
	background-color: var(--light);
}

.about-content {
	display: flex;
	align-items: center;
	gap: 40px;
}

.about-text {
	flex: 1;
}

.about-text h3 {
	font-size: 32px;
	margin-bottom: 20px;
	color: var(--primary);
}

.about-text p {
	margin-bottom: 20px;
	color: #555;
}

.about-image {
	flex: 1;
	border-radius: 8px;
	overflow: hidden;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.about-image img {
	width: 100%;
	height: auto;
	display: block;
}

/* Products Section */
.products-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 30px;
}

.product-card {
	background: white;
	border-radius: 8px;
	overflow: hidden;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
	transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
	transform: translateY(-10px);
	box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.product-image {
	height: 220px;
	overflow: hidden;
}

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

.product-card:hover .product-image img {
	transform: scale(1.1);
}

.product-info {
	padding: 25px;
}

.product-info h3 {
	font-size: 20px;
	margin-bottom: 10px;
	color: var(--primary);
}

.product-info p {
	color: var(--gray);
	margin-bottom: 20px;
}

/* Contact Section */
.contact {
	padding: 80px 0;
	background-color: var(--primary);
	color: white;
}

.contact .section-title h2 {
	color: white;
}

.contact-info {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 30px;
}

.contact-item {
	flex: 1;
	min-width: 250px;
	display: flex;
	align-items: flex-start;
	gap: 15px;
}

.contact-icon {
	background-color: var(--secondary);
	width: 50px;
	height: 50px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 20px;
	flex-shrink: 0;
}

.contact-details h3 {
	margin-bottom: 10px;
	font-size: 18px;
}

/* Footer */
footer {
	background-color: #002244;
	color: white;
	padding: 40px 0 20px;
	text-align: center;
}

.footer-content {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 30px;
	margin-bottom: 30px;
}

.footer-column {
	flex: 1;
	min-width: 200px;
}

.footer-column h3 {
	font-size: 18px;
	margin-bottom: 20px;
	position: relative;
	padding-bottom: 10px;
}

.footer-column h3:after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 40px;
	height: 2px;
	background-color: var(--secondary);
}

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

.footer-column ul li {
	margin-bottom: 10px;
}

.footer-column ul li a {
	color: #ccc;
	text-decoration: none;
	transition: color 0.3s;
}

.footer-column ul li a:hover {
	color: white;
}

.copyright {
	/* padding-top: 20px; */
	/* border-top: 1px solid rgba(255, 255, 255, 0.1); */
	font-size: 14px;
	color: #aaa;
}

/* 移动端菜单遮罩 */
.nav-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0,0,0,0.5);
	z-index: 1001;
	display: none;
}

/* 响应式调整 - 移动端头部优化 */
@media (max-width: 992px) {
	.fullscreen-banner {
		height: 70vh;
	}
	
	.banner-content h2 {
		font-size: 36px;
	}
	
	.banner-content p {
		font-size: 18px;
	}
}

@media (max-width: 768px) {
	/* 移动端头部优化 */
	.header-top {
		padding: 6px 0;
		font-size: 12px;
	}
	
	.header-top .container {
		flex-direction: row;
		text-align: center;
		gap: 5px;
	}
	
	.header-top .social-links {
		/* margin-top: 5px; */
	}
	
	.header-main {
		padding: 10px 0;
	}
	
	.header-main .container {
		flex-direction: row;
		justify-content: space-between;
	}
	
	.logo {
		flex: 1;
	}
	
	.logo h1 {
		font-size: 16px;
	}
	
	.logo img {
		height: 35px;
		margin-right: 8px;
	}
	
	/* 移动端菜单按钮 */
	.mobile-menu-toggle {
		display: block;
	}
	
	/* 移动端导航菜单 */
	nav {
		position: fixed;
		top: 0;
		right: -100%;
		width: 80%;
		max-width: 300px;
		height: 100vh;
		background-color: white;
		box-shadow: -5px 0 15px rgba(0,0,0,0.1);
		transition: right 0.3s ease;
		z-index: 1002;
		padding: 80px 20px 20px;
		overflow-y: auto;
	}
	
	nav.active {
		right: 0;
	}
	
	/* 移动端关闭按钮 - 只在移动端显示 */
	.mobile-close-btn {
		display: block;
	}
	
	nav ul {
		flex-direction: column;
		align-items: flex-start;
		width: 100%;
	}
	
	nav ul li {
		margin: 0;
		width: 100%;
		border-bottom: 1px solid #f0f0f0;
	}
	
	nav ul li a {
		display: block;
		padding: 12px 15px;
		width: 100%;
		font-size: 16px;
	}
	
	nav ul li.dropdown > a {
		display: flex;
		justify-content: space-between;
		align-items: center;
	}
	
	nav ul li.dropdown > a:after {
		display: none;
	}
	
	/* 移动端下拉菜单 */
	.dropdown-menu {
		position: static;
		box-shadow: none;
		border-radius: 0;
		width: 100%;
		margin-top: 0;
		background-color: #f8f9fa;
		border: none;
		display: none;
		padding: 0;
	}
	
	.dropdown-menu.show {
		display: block;
	}
	
	.dropdown-menu li a {
		padding: 12px 25px;
		border-bottom: 1px solid #e9ecef;
		color: #495057;
		font-weight: 500;
	}
	
	.dropdown-menu li:last-child a {
		border-bottom: none;
	}
	
	.dropdown-menu li a:hover {
		background-color: var(--primary);
		color: white;
		padding-left: 25px;
	}
	
	/* 移动端下拉箭头样式 */
	.dropdown > a i {
		transition: transform 0.3s ease;
	}
	
	.dropdown.active > a i {
		transform: rotate(180deg);
	}
	
	/* 移动端菜单遮罩 */
	.nav-overlay.active {
		display: block;
	}
	
	.about-content {
		flex-direction: column;
	}
	
	.fullscreen-banner {
		height: 60vh;
		min-height: 500px;
	}
	
	.banner-content {
		left: 5%;
		right: 5%;
		text-align: center;
	}
	
	.banner-content h2 {
		font-size: 28px;
	}
	
	.banner-content p {
		font-size: 16px;
	}
	
	.banner-arrow {
		width: 45px;
		height: 45px;
		font-size: 18px;
	}
	
	.banner-arrow.prev {
		left: 15px;
	}
	
	.banner-arrow.next {
		right: 15px;
	}
	
	.banner-nav {
		bottom: 20px;
	}
}

@media (max-width: 480px) {
	.fullscreen-banner {
		height: 50vh;
		min-height: 400px;
	}
	
	.banner-content h2 {
		font-size: 24px;
	}
	
	.banner-content p {
		font-size: 14px;
	}
	
	.logo h1 {
		font-size: 14px;
	}
	
	.header-top {
		font-size: 11px;
	}
}