/* 顶部导航 */
.header {
	position: fixed;
	width: 100%;
	top: 0;
	z-index: 1000;
	transition: top 1s;
}

.header_scroll {
	top: -80px;
	box-shadow: 0px 4px 8px 0px rgba(0, 0, 0, 0.1);
	background: #fff;
}

.header_scroll .nav a {
	color: #0A2342;
}

.header .container {
	margin: 0 auto;
	width: 1200px;
	height: 160px;
}

.nav {
	flex: 1;
	text-align: right;
	position: relative;
}

.nav li {
	
	display: inline-block;
	vertical-align: middle;
	padding-left: 48px;
	line-height: 80px;
}

.nav a {
	font-size: 15px;
	color: #fff;
	padding: 5px 0;
}

.nav a:hover,
.nav a.active {
	opacity: 0.8;
}

.nav li .nav_tit {
	color: #fff;
}
.header_scroll .nav li .nav_tit{
	color: #0A2342;
}

.header_scroll .nav_item p a{
	color: #77879C;
}

.header_scroll .nav_item p a:hover{
	color: #1a1a1a;
}

.nav li:hover .n-section {
	display: flex;
}

.nav li:hover .n-section {
	display: flex;
}

.nav li:nth-child(2) .n-section::after{
	background: #F8FAFC url(../images/icon-about.png) bottom right/269px 44px no-repeat;
}

.nav li:nth-child(3) .n-section::after{
	background: #F8FAFC url(../images/icon-news.png) bottom right/138px 138px no-repeat;
}

.nav li:nth-child(4) .n-section::after{
	background: #F8FAFC url(../images/icon-product.png) bottom right/128px 128px no-repeat;
}

.nav li:nth-child(5) .n-section::after{
	background: #F8FAFC url(../images/icon-party.png) bottom right/138px 138px no-repeat;
}


.header-right {
	height: 80px;
	line-height: 80px;
	font-size: 12px;
	color: #fff;
	border-bottom: 1px solid #eee;
	text-align: right;
}

.header-right span {
	display: inline-block;
	vertical-align: middle;
	padding: 0 5px;
}

.lang {
	cursor: pointer;
	transition: color 0.3s;
}

.lang:hover {
	color: #fff;
}

.lang-divider {
	color: #fff;
}

/* 轮播图 */
.banner {
	position: relative;
	z-index: 1;
	height: 1000px;
	transition: height 1s;
}

.banner_scroll {
	height: 500px;
}

.banner_img {
	height: 100%;
	background-position: center bottom;
	background-size: 1920px auto;
	background-repeat: no-repeat;
}

/* 通用标题样式 */
.section-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 30px;
}

.section-header.center {
	flex-direction: column;
	text-align: center;
}

.section-title {
	font-size: 24px;
	font-weight: bold;
	color: #0A2342;
	position: relative;
}

.section-title::before {
	content: '';
	position: absolute;
	left: 0;
	bottom: -5px;
	width: 69px;
	height: 4px;
	background: #0A2342;
}

.section-header.center .section-title {
	padding-left: 0;
}

.section-header.center .section-title::before {
	display: none;
}

.section-subtitle {
	margin-top: 10px;
	font-size: 16px;
}

.view-more {
	color: #0A2342;
	font-size: 13px;
	transition: color 0.3s;
}

.view-more:hover {
	color: #003366;
}

/* 新闻中心 */
.news-section {
	padding: 60px 0;
	background: #F8FAFC;
}

.news-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 15px;
}

.news-card {
	position: relative;
	cursor: pointer;
	transition: transform 0.3s;
}

.news-card:hover {
	transform: translateY(-5px);
}

.n-tag{
	position: absolute;
	top: 0;
	left: 10px;
	width: 28px;
	height: 34px;
	line-height: 14px;
	color: #fff;
	font-size: 12px;
	text-align: center;
	z-index: 10;
	background: url(../images/icon-bq.png) center no-repeat;
}

.news-img {
	width: 100%;
	height: 236px;
	overflow: hidden;
	margin-bottom: 15px;
}

.news-img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.3s;
}

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

.news-title {
	font-size: 20px;
	font-weight: normal;
	color: #0A2342;
	line-height: 1.5;
	margin-bottom: 8px;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.news-date {
	font-size: 12px;
	color: #999;
}

/* 关于我们 */
.about-section {
	padding: 60px 0;
}

.about-content {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 70px;
	align-items: start;
}

.about-left .section-title {
	margin-bottom: 20px;
}

.about-desc {
	padding-top: 10px;
	color: #2B3D53;
	font-size: 16px;
	line-height: 1.8;
	margin-bottom: 25px;
}

.about-tabs {
	display: flex;
	gap: 20px;
	margin-bottom: 30px;
}

.tab-item {
	padding: 15px 20px;
	border-left: 4px solid #003366;
	transition: all 0.3s;
}

.tab-name {
	display: block;
	font-weight: bold;
	font-size: 18px;
	margin-bottom: 5px;
}

.tab-desc {
	font-size: 16px;
}

.about-stats {
	display: flex;
	gap: 60px;
}

.stat-num {
	display: block;
	font-size: 28px;
	font-weight: bold;
	color: #003366;
	margin-bottom: 5px;
}

.stat-label {
	font-size: 16px;
}

.about-right {
	position: relative;
}

.about-img-main {
	width: 564;
	height: 343px;
	overflow: hidden;
}

.about-img-main img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.about-card {
	position: absolute;
	bottom: -80px;
	left: -30px;
	background: #0A2342;
	color: #fff;
	padding: 25px;
	width: 360px;
	height: 225px;
}

.card-icon {
	width: 48px;
	height: 48px;
	margin-bottom: 15px;
	background: url(../images/icon-qyzz.png) center no-repeat;
}

.about-card h4 {
	font-size: 16px;
	margin-bottom: 15px;
}

.about-card p {
	font-size: 16px;
}

/* 产品+服务 */
.products-section {
	padding: 60px 0;
	background: url(../images/bg-cpfw.png) center bottom/100% auto no-repeat;
}

.products-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 20px;
}

.product-card {
	position: relative;
	overflow: hidden;
	cursor: pointer;
}

.product-img {
	width: 100%;
	height: 380px;
	overflow: hidden;
}

.product-img img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.3s;
}

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

.product-info {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
	padding: 40px 15px 15px;
	color: #fff;
}

.product-icon {
	width: 24px;
	height: 24px;
	margin-bottom: 8px;
}

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

.product-info h3 {
	font-size: 20px;
	font-weight: normal;
	margin-bottom: 8px;
}

.product-link {
	font-size: 16px;
	color: #fff;
}

.product-link:hover {
	color: rgba(255, 255, 255, 0.8);
	transition: color 0.3s;
}

/* 响应式设计 */
@media (max-width: 992px) {
	.news-grid {
		grid-template-columns: repeat(2, 1fr);
	}

	.about-content {
		grid-template-columns: 1fr;
	}

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

	.footer-content {
		grid-template-columns: 1fr;
		text-align: center;
	}

	.footer-right {
		justify-content: center;
	}
}

@media (max-width: 576px) {
	.nav ul {
		display: none;
	}

	.banner {
		height: 300px;
	}

	.banner-title {
		font-size: 20px;
	}

	.news-grid,
	.products-grid {
		grid-template-columns: 1fr;
	}

	.about-stats {
		flex-direction: column;
		gap: 20px;
	}
}