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

body {
	background-color: #f5f7fa;
	color: #333;
	line-height: 1.6;
}

.container {
	width: 85%;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 15px;
}



/*图片样式*/
.image-container img {
	max-width: 100%;
	/* 设置图片的最大宽度为容器宽度的80% */
	height: auto;
	border-radius: 8px;
}

/*字体样式*/
/* 
    .section-content 样式
    调整"Industry Solutions"部分的外边距，使其与背景和底部内容紧密连接。
*/
.section-content {
	margin-top: 50px;
	/* 调整顶部外边距 */
	margin-bottom: -50px;
	/* 调整底部外边距 */
}

/* 
    .content-box 样式
    为内容框添加背景色、内边距、圆角和阴影，使其在页面上更加突出。
*/
.content-box {
	background-color: #f8f9fa;
	/* 浅灰色背景 */
	padding: 30px;
	/* 内边距 */
	border-radius: 8px;
	/* 圆角 */
	box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
	/* 轻微阴影 */
}

/* 
    .content-box h3 样式
    设置标题的颜色、底部间距和字体大小，使其更加醒目。
*/
.content-box h3 {
	color: #003366;
	/* 深蓝色标题 */
	margin-bottom: 15px;
	/* 标题与段落之间的间距 */
	font-size: 20px;
	/* 标题字体大小 */
}

/* 
    .content-box p 样式
    设置段落文字的颜色、行高和字体大小，提高可读性。
*/
.content-box p {
	color: #333;
	/* 深灰色文字 */
	line-height: 1.6;
	/* 行高 */
	font-size: 16px;
	/* 文字大小 */
}

/* 导航栏样式 */
header {
	background-color: #003366;
	color: white;
	padding: 15px 0;
	position: sticky;
	top: 0;
	z-index: 100;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

nav {
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.logo {
	font-size: 24px;
	font-weight: bold;
}

.nav-links {
	display: flex;
	list-style: none;
}

.nav-links li {
	margin-left: 20px;
}

.nav-links a {
	color: white;
	text-decoration: none;
	font-size: 14px;
	font-weight: 500;
	transition: color 0.3s;
}

.nav-links a:hover {
	color: #4dabf7;
}

/* 子菜单样式 */
.submenu {
	display: none;
	position: absolute;
	background-color: white;
	border-radius: 5px;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
	padding: 10px 0;
	margin-top: 5px;
	width: 200px;
	z-index: 100;
	transition: all 0.3s ease;
}

.nav-links li:hover .submenu {
	display: block;
}

.submenu li {
	margin: 0;
	padding: 10px 20px;
	width: 85%;
	transition: background-color 0.3s;
}

.submenu li:hover {
	background-color: #f0f0f0;
}

.submenu li a {
	color: #333;
	text-decoration: none;
	font-size: 14px;
	transition: color 0.3s;
}

.submenu li a:hover {
	color: #003366;
}

.submenu {
	display: none;
	transition: opacity 0.3s ease;
	/* 添加透明度过渡动画 */
}

.submenu.open {
	display: block;
	opacity: 1;
}

.has-submenu:not(.hover) .submenu {
	opacity: 0;
}


/* 主要内容区域样式 */
.section {
	padding: 60px 0;
	background-color: white;
	border-radius: 8px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
	margin-bottom: 30px;
}

.section-title {
	font-size: 28px;
	margin-bottom: 30px;
	color: #003366;
	text-align: center;
	font-weight: 600;
}

/* 产品分类样式 */
.product-category {
	margin-bottom: 60px;
}

.category-title {
	font-size: 24px;
	color: #003366;
	margin-bottom: 30px;
	padding-bottom: 10px;
	border-bottom: 2px solid #f0f0f0;
}

/* 产品网格样式 */
.products-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
	gap: 30px;
}

.product-card {
	background-color: 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(-5px);
	box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.product-card img {
	width: 100%;
	height: 180px;
	object-fit: cover;
}

.product-card h3 {
	font-size: 18px;
	color: #003366;
	padding: 15px;
	background-color: #f8f9fa;
	margin: 0;
}

.product-card ul {
	list-style: none;
	padding: 15px;
}

.product-card ul li {
	margin-bottom: 8px;
	font-size: 14px;
	color: #555;
	position: relative;
	padding-left: 15px;
}

.product-card ul li:before {
	content: "•";
	color: #003366;
	position: absolute;
	left: 0;
}

/* 时间线样式 */
.timeline-container {
	position: relative;
	max-width: 800px;
	margin: 0 auto;
}

.timeline-container::before {
	content: '';
	position: absolute;
	top: 0;
	bottom: 0;
	left: 50%;
	width: 2px;
	background-color: #e0e0e0;
	transform: translateX(-50%);
}

.timeline-item {
	position: relative;
	width: 50%;
	padding: 20px 40px;
	box-sizing: border-box;
}

.timeline-item:nth-child(even) {
	float: right;
}

.timeline-item::after {
	content: '';
	position: absolute;
	width: 10px;
	height: 10px;
	background-color: #003366;
	border-radius: 50%;
	top: 20px;
	left: 50%;
	transform: translateX(-50%);
}

.timeline-content {
	background-color: white;
	padding: 20px;
	border-radius: 8px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.timeline-content h3 {
	font-size: 18px;
	color: #003366;
	margin-bottom: 5px;
}

.timeline-content p {
	font-size: 14px;
	color: #555;
}

/* 应用程序样式 */
.applications-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
	gap: 20px;
	margin-bottom: 30px;
}

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

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

.application-card h3 {
	font-size: 18px;
	color: #003366;
	padding: 15px;
	background-color: #f8f9fa;
	margin: 0;
}

.application-card p {
	font-size: 14px;
	color: #555;
	padding: 15px;
}

.application-card img {
	width: 100%;
	height: 150px;
	object-fit: cover;
}

/* 页脚样式 */
footer {
	background-color: #003366;
	color: white;
	padding: 20px 0;
	text-align: center;
	margin-top: 30px;
}

/* 响应式调整 */
@media (max-width: 992px) {

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

	.timeline-item {
		width: 100%;
		padding: 20px;
	}
}

@media (max-width: 768px) {
	.nav-links {
		display: none;
	}

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