* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}

body {
	font-family: 'Microsoft YaHei', Arial, sans-serif;
	color: #333;
	line-height: 1.6;
	touch-action: manipulation;
}

/* 头部导航 */
.header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	background: transparent;
	z-index: 1000;
	padding: 20px 0;
	transition: all 0.3s ease;
	height: 90px;
	pointer-events: none;
}

.header * {
	pointer-events: auto;
}

.header.scrolled {
	background: rgba(255, 255, 255, 0.98);
	box-shadow: 0 2px 15px rgba(0,0,0,0.1);
	padding: 15px 0;
}

.header-container {
	max-width: 1600px;
	margin: 0 auto;
	padding: 0 40px;
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.header-right {
	display: flex;
	margin-left: 40px;
	align-items: center;
	gap: 20px;
}

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

.logo img {
	height: 50px;
	width: auto;
	transition: opacity 0.3s ease;
}

.nav {
	display: flex;
	margin-left: auto;
	gap: 60px;
	align-items: center;
}

.nav a {
	text-decoration: none;
	color: white;
	font-size: 15px;
	transition: color 0.3s;
	position: relative;
}

.header.scrolled .nav a {
	color: #333;
}

.nav a:hover {
	color: #F27000;
}

.nav a.active {
	color: #F27000;
}

.header.scrolled .nav a:hover,
.header.scrolled .nav a.active {
	color: #F27000;
}

.nav a.active::after {
	content: '';
	position: absolute;
	bottom: -5px;
	left: 0;
	right: 0;
	height: 2px;
	background: #F27000;
}

.header.scrolled .nav a.active::after {
	background: #F27000;
}

.lang-switch {
	display: flex;
	gap: 10px;
	align-items: center;
}

.lang-switch a {
	color: white;
	text-decoration: none;
	font-size: 14px;
	transition: color 0.3s;
}

.header.scrolled .lang-switch a {
	color: #666;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
	display: none;
	flex-direction: column;
	gap: 5px;
	cursor: pointer;
	padding: 5px;
	z-index: 1001;
}

.mobile-menu-btn span {
	width: 25px;
	height: 3px;
	background: white;
	transition: all 0.3s;
	border-radius: 2px;
}

.header.scrolled .mobile-menu-btn span {
	background: #333;
}

.mobile-menu-btn.active span:nth-child(1) {
	transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.active span:nth-child(2) {
	opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
	transform: rotate(-45deg) translate(7px, -7px);
}

/* 移动端菜单 */
.mobile-nav {
	display: block;
	position: fixed;
	top: 0;
	left: -100%;
	width: 238px;
	height: 100vh;
	background: white;
	box-shadow: 2px 0 10px rgba(0,0,0,0.1);
	transition: left 0.3s ease;
	z-index: 999999;
	padding-top: 80px;
	overflow-y: auto;
	pointer-events: none;
}


.mobile-nav-logo {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 80px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-bottom: 1px solid #f0f0f0;
	background: white;
	z-index: 1;
}

.mobile-nav-logo a {
	display: flex;
	align-items: center;
	justify-content: center;
}

.mobile-nav-logo img {
	height: 45px;
	width: auto;
	object-fit: contain;
}
.mobile-nav.active {
	left: 0;
	pointer-events: auto;
}

.mobile-nav a {
	display: block;
	padding: 15px 30px;
	color: #333;
	text-decoration: none;
	font-size: 16px;
	border-bottom: 1px solid #f0f0f0;
	transition: all 0.3s;
}

.mobile-nav a:hover,
.mobile-nav a.active {
	background: #f8f9fa;
	color: #FF8C00;
	padding-left: 40px;
}

/* 遮罩层 */
.mobile-overlay {
	display: block;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(0,0,0,0.5);
	z-index: 998;
	opacity: 0;
	transition: opacity 0.3s;
	pointer-events: none;
	visibility: hidden;
}

.mobile-overlay.active {
	opacity: 1;
	pointer-events: auto;
	visibility: visible;
}

/* 滚动入场动画 */
.animate-on-scroll {
	opacity: 0;
	transform: translateY(50px);
	transition: opacity 1s cubic-bezier(.38, .32, .36, .98), transform 1s cubic-bezier(.38, .32, .36, .98);
}

.animate-on-scroll.animated {
	opacity: 1;
	transform: translateY(0);
	overflow: hidden;
}

/* 页脚 */
.footer {
	background: #FF8C00;
	color: white;
	padding: 35px 40px 15px;
}

.footer-container {
	max-width: 1600px;
	margin: 0 auto;
	display: grid;
	grid-template-columns: 1fr 1fr 1fr 1.5fr 0.6fr;
	gap: 40px;
	margin-bottom: 20px;
	padding-left: 60px;
}

.footer-section h3 {
	font-size: 16px;
	margin-bottom: 18px;
	font-weight: bold;
}

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

.footer-section ul li {
	margin-bottom: 8px;
}

.footer-section a {
	color: rgba(255,255,255,0.9);
	text-decoration: none;
	font-size: 13px;
	transition: color 0.3s;
}

.footer-section a:hover {
	color: white;
}

.footer-section p {
	color: rgba(255,255,255,0.9);
	font-size: 13px;
	line-height: 1.8;
	margin-bottom: 8px;
}

.footer-section:nth-child(4) {
	border-right: 1px solid rgba(255,255,255,0.3);
	padding-right: 40px;
}

.footer-section:nth-child(4) p:last-child {
	white-space: nowrap;
}

.footer-section:nth-child(5) {
	padding-left: 40px;
}

.footer-logo {
	width: 110px;
	height: 120px;
	display: flex;
	align-items: center;
	justify-content: center;
	margin: 0;
}

.footer-logo img {
	width: 110px;
	height: 120px;
}

.footer-bottom {
	text-align: center;
	padding-top: 15px;
	border-top: 1px solid rgba(255,255,255,0.3);
	font-size: 13px;
	color: rgba(255,255,255,0.9);
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.footer-bottom p {
	margin: 0;
}

.footer-links {
	display: flex;
	gap: 15px;
}

.footer-links a {
	color: rgba(255,255,255,0.9);
	text-decoration: none;
	font-size: 13px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
	.nav {
		display: none;
	}

	.mobile-menu-btn {
		display: flex;
	}

	.mobile-nav {
		display: block;
	}

	.mobile-overlay {
		display: block;
	}

	.footer-container {
		grid-template-columns: repeat(2, 1fr);
	}

	.footer-section:nth-child(4) {
		border-right: none;
		padding-right: 0;
	}

	.footer-section:nth-child(5) {
		padding-left: 0;
		margin-bottom: 0;
	}
}

@media (max-width: 768px) {
	.footer-container {
		grid-template-columns: 1fr;
	}

	.footer-bottom {
		flex-direction: column;
		gap: 15px;
	}

	/* 头部优化 */
	.header-container {
		padding: 0 15px;
	}

	.logo img {
		height: 40px;
	}
	.header { height: 66px; padding: 8px 0; }
	.header.scrolled { padding: 6px 0; }
	.nav { gap: 15px; }
	.nav a { font-size: 12px; }
	.logo img { height: 38px; }


	/* 页脚优化 - 手机端居中排版，主从层次设计 */
	.footer {
		padding: 50px 20px 20px;
	}

	.footer-container {
		padding-left: 0;
		gap: 40px;
	}

	.footer-section {
		text-align: center;
	}

	/* Logo区域 - 主要层次（最突出） */
	.footer-section:nth-child(5) {
		order: -2;
		margin-bottom: 10px;
	}

	.footer-logo {
		width: 140px;
		height: 150px;
		margin: 0 auto;
	}

	.footer-logo img {
		width: 140px;
		height: 150px;
	}

	/* 联系我们 - 主要层次（强调） */
	.footer-section:nth-child(4) {
		order: -1;
		margin-bottom: 20px;
		padding-bottom: 30px;
		border-bottom: 1px solid rgba(255,255,255,0.2);
	}

	.footer-section:nth-child(4) h3 {
		font-size: 18px;
		margin-bottom: 20px;
		font-weight: bold;
	}

	.footer-section:nth-child(4) p {
		font-size: 14px;
		line-height: 2;
	}

	.footer-section:nth-child(4) p[style*="font-size: 15px"] {
		font-size: 20px !important;
		font-weight: bold;
		color: white;
		margin-bottom: 20px;
	}

	/* 其他导航区域 - 次要层次（常规） */
	.footer-section:nth-child(1),
	.footer-section:nth-child(2),
	.footer-section:nth-child(3) {
		opacity: 0.85;
	}

	.footer-section h3 {
		font-size: 15px;
		margin-bottom: 15px;
		font-weight: 500;
	}

	.footer-section ul {
		display: flex;
		flex-direction: column;
		align-items: center;
	}

	.footer-section p,
	.footer-section a {
		font-size: 13px;
	}

	.footer-bottom {
		font-size: 11px;
		gap: 10px;
	}

	.footer-bottom p {
		text-align: center;
	}

	.footer-links {
		gap: 10px;
		flex-wrap: wrap;
		justify-content: center;
	}

	.footer-links a {
		font-size: 11px;
	}
}

/* 1024px平板优化 */
@media (max-width: 1024px) and (min-width: 769px) {
	.header-container {
		padding: 0 20px;
	}

	.footer-container {
		padding-left: 20px;
		gap: 30px;
	}
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
	.footer-section:nth-child(4) p:last-child {
		white-space: normal;
	}
}

/* 手机端 footer 折叠菜单 */
@media (max-width: 768px) {
	.footer-collapsible .footer-collapse-title {
		display: flex;
		align-items: center;
		justify-content: space-between;
		padding-bottom: 10px;
		border-bottom: 1px solid rgba(255,255,255,0.2);
		margin-bottom: 0;
		user-select: none;
	}
	.footer-collapse-icon {
		display: inline-block;
		width: 10px;
		height: 10px;
		border-right: 2px solid rgba(255,255,255,0.8);
		border-bottom: 2px solid rgba(255,255,255,0.8);
		transform: rotate(45deg);
		transition: transform 0.3s ease;
		flex-shrink: 0;
		margin-left: 8px;
	}
	.footer-collapsible.footer-open .footer-collapse-icon {
		transform: rotate(-135deg);
	}
	.footer-collapse-body {
		overflow: hidden;
		max-height: 0;
		transition: max-height 0.35s ease;
		margin-top: 0;
	}
	.footer-collapsible.footer-open .footer-collapse-body {
		margin-top: 8px;
	}
}
/* 全局分页箭头按钮 */
.page-arrow {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border-radius: 50%;
	background-color: #e6e6e6;
	color: #999;
	text-decoration: none;
	transition: all 0.3s ease;
	cursor: pointer;
	border: none;
	outline: none;
	margin: 0 5px;
}
.page-arrow svg {
	width: 20px;
	height: 20px;
	fill: currentColor;
	transition: fill 0.3s ease;
}
.page-arrow:hover {
	background-color: #F27000;
	color: #fff;
	transform: translateY(-2px);
	box-shadow: 0 4px 10px rgba(242,112,0,0.3);
}
.page-arrow:active {
	transform: translateY(0);
}
.page-arrow.disabled {
	background-color: #f5f5f5;
	color: #ccc;
	cursor: not-allowed;
	pointer-events: none;
}

/* ========================================
   关于我们页面样式
   ======================================== */

/* Banner区域 */
.banner-nei {
	height: 600px;
	background: url('../images/banner_nei.jpg') center/cover;
	display: flex;
	align-items: center;
	justify-content: center;
	color: white;
	position: relative;
}

.banner-nei h1 {
	font-size: 48px;
	font-weight: bold;
	letter-spacing: 8px;
	text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}
@media (max-width: 1024px) { .banner-nei { height: 420px; } .banner-nei h1 { font-size: 36px; letter-spacing: 6px; } }
@media (max-width: 768px) { .banner-nei { height: 280px; } .banner-nei h1 { font-size: 28px; letter-spacing: 4px; } }
@media (max-width: 480px) { .banner-nei { height: 182px; } .banner-nei h1 { font-size: 22px; letter-spacing: 3px; } }

.about-banner {
	height: 600px;
	background: url('../images/aboutusbg.jpg') center/cover;
	display: flex;
	align-items: center;
	justify-content: center;
	color: white;
	position: relative;
}

.about-banner h1 {
	font-size: 48px;
	font-weight: bold;
	letter-spacing: 8px;
	text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

/* 导航标签 */
.about-tabs {
	background: white;
	border-bottom: 1px solid #e0e0e0;
	position: sticky;
	top: 90px;
	z-index: 100;
}

.about-tabs-container {
	max-width: 1600px;
	margin: 0 auto;
	display: flex;
	justify-content: center;
	gap: 60px;
	padding: 0 40px;
}

.about-tab {
	padding: 25px 0;
	cursor: pointer;
	position: relative;
	transition: all 0.3s;
}

.about-tab h6 {
	font-size: 16px;
	color: #666;
	margin: 0;
	font-weight: 400;
}

.about-tab h6 a {
	color: inherit;
	text-decoration: none;
}

.about-tab.active h6 {
	color: #FF8C00;
	font-weight: 500;
}

.about-tab.active::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	height: 3px;
	background: #FF8C00;
}

.about-tab:hover h6 {
	color: #FF8C00;
}

/* 关于我们内容区 */
.about-intro {
	padding: 100px 40px;
	background: white;
}

.about-intro-container {
	max-width: 1600px;
	margin: 0 auto;
	display: block;
}

.about-intro-full {
	width: 100%;
}

.about-intro-full h2 {
	font-size: 32px;
	color: #333;
	margin-bottom: 30px;
	font-weight: 400;
}

.about-intro-left h2 {
	font-size: 32px;
	color: #333;
	margin-bottom: 30px;
	font-weight: 400;
}

.about-intro-left p {
	font-size: 14px;
	color: #666;
	line-height: 2;
	margin-bottom: 20px;
	text-align: justify;
}

.about-intro-right {
	position: relative;
}

.about-intro-image {
	width: 100%;
	height: 450px;
	background: url('../images/company_v5.jpg') center/cover;
}

/* 数据统计区 */
.about-stats-section {
	background: white;
	padding: 0 40px 80px;
}

.about-stats-container {
	max-width: 1600px;
	margin: 0 auto;
	display: flex;
	border-top: 1px solid #e0e0e0;
	border-bottom: 1px solid #e0e0e0;
}

.about-stat-item {
	flex: 1;
	padding: 45px 30px;
	position: relative;
	display: flex;
	flex-direction: row-reverse;
	align-items: center;
	justify-content: flex-end;
	gap: 20px;
}

.about-stat-item:not(:last-child)::after {
	content: '';
	position: absolute;
	right: 0;
	top: 30%;
	bottom: 30%;
	width: 1px;
	background: #e0e0e0;
}

.about-stat-icon {
	width: 50px;
	height: 50px;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
}

.about-stat-icon svg {
	width: 45px;
	height: 45px;
}

.about-stat-content {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}

.about-stat-number {
	font-size: 36px;
	font-weight: bold;
	color: #333;
	line-height: 1;
	margin-bottom: 6px;
}

.about-stat-number sub {
	font-size: 13px;
	font-weight: normal;
	color: #999;
	vertical-align: baseline;
	margin-left: 2px;
}

.about-stat-label {
	font-size: 11px;
	color: #999;
	line-height: 1.4;
}

/* 关于我们页面 - 响应式设计 */
@media (max-width: 1024px) {
	.about-intro-container {
		grid-template-columns: 1fr;
	}

	.about-tabs-container {
		gap: 30px;
	}

	.about-stats-container {
		flex-wrap: nowrap;
	}

	.about-stat-item {
		flex: 1 1 25%;
		min-width: 0;
		padding: 30px 10px;
		gap: 12px;
	}
}

@media (max-width: 768px) {
	.about-banner {
		height: 300px;
	}

	.about-banner h1 {
		font-size: 32px;
		letter-spacing: 4px;
		padding: 0 20px;
	}

	.about-tabs {
		top: 60px;
	}

	.about-tabs-container {
		gap: 15px;
		padding: 0 20px;
		overflow-x: auto;
		justify-content: flex-start;
	}

	.about-tab {
		padding: 20px 0;
		white-space: nowrap;
	}

	.about-tab h6 {
		font-size: 14px;
	}

	.about-intro {
		padding: 60px 20px;
	}

	.about-intro-container {
		gap: 40px;
	}

	.about-intro-left h2 {
		font-size: 24px;
	}

	.about-intro-left p {
		font-size: 13px;
		line-height: 1.8;
	}

	.about-intro-image {
		height: 300px;
	}

	.about-stats-section {
		padding: 0 20px 60px;
	}

	.about-stats-container {
		flex-direction: row;
		align-items: stretch;
		flex-wrap: nowrap;
	}

	.about-stat-item {
		flex: 1 1 25%;
		min-width: 0;
		max-width: none;
		padding: 20px 8px;
		justify-content: center;
		gap: 8px;
	}

	.about-stat-item:not(:last-child)::after {
		width: 1px;
		height: auto;
		top: 30%;
		bottom: 30%;
		left: auto;
		right: 0;
	}

	.about-stat-icon {
		width: 32px;
		height: 32px;
	}

	.about-stat-icon svg {
		width: 28px;
		height: 28px;
	}

	.about-stat-content {
		align-items: flex-start;
		text-align: left;
	}

	.about-stat-number {
		font-size: 20px;
	}

	.about-stat-number sub {
		font-size: 11px;
	}

	.about-stat-label {
		font-size: 10px;
	}
}

@media (max-width: 480px) {
	.about-stats-section {
		padding: 0 12px 40px;
	}

	.about-stats-container {
		display: grid;
		grid-template-columns: 1fr 1fr;
		flex-direction: unset;
		border-top: 1px solid #e0e0e0;
		border-bottom: 1px solid #e0e0e0;
	}

	.about-stat-item {
		padding: 20px 12px;
		justify-content: flex-start;
		gap: 10px;
		flex-direction: row;
		align-items: center;
	}

	.about-stat-item:not(:last-child)::after {
		display: none;
	}

	.about-stat-item:nth-child(1),
	.about-stat-item:nth-child(2) {
		border-bottom: 1px solid #e0e0e0;
	}

	.about-stat-item:nth-child(1),
	.about-stat-item:nth-child(3) {
		border-right: 1px solid #e0e0e0;
	}

	.about-stat-icon {
		width: 36px;
		height: 36px;
		flex-shrink: 0;
	}

	.about-stat-icon img {
		height: 30px !important;
	}

	.about-stat-number {
		font-size: 22px;
	}

	.about-stat-number sub {
		font-size: 11px;
	}

	.about-stat-label {
		font-size: 11px;
		color: #999;
	}
}