/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

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

/* 导航栏样式 */
.navbar {
     background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1000;
}

.nav-container {
	//max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    text-decoration: none;
    padding: 5px 0;
}

.logo img{
	height:50px;
}

/* 桌面端菜单样式 */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
      display: flex;
    align-items: center;
    padding: 20px 15px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: #007bff;
}

.nav-link i {
    margin-left: 5px;
    font-size: 12px;
}

/* 二级和三级菜单 */
.submenu {
    position: absolute;
    background-color: #fff;
    min-width: 220px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    list-style: none;
    padding: 0;
    margin: 0;
    border-radius: 4px;
    overflow: hidden;
    z-index: 100;
}

/* 一级菜单 */
.submenu-level1 {
    top: 100%;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.nav-item-has-children:hover .submenu-level1 {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu-level2 {
    top: 0;
    left: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all 0.3s ease;
}
.submenu-item-has-children {
    position: relative;
}

.submenu-item-has-children:hover .submenu-level2 {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.nav-item:hover > .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu-item:hover > .submenu-level2 {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.submenu-link {
     display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    color: #555;
    text-decoration: none;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.2s;
}

.submenu-link:hover {
    background-color: #f8f9fa;
    color: #007bff;
}

.submenu-link i {
    font-size: 10px;
    color: #999;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 菜单遮罩层 */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    z-index: 999;
}

.menu-overlay.active {
    display: block;
}

/* Banner样式 */
.banner {
    position: relative;
	width: 100%;
  height: 660px;
    overflow: hidden;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    background-size: cover;
    background-position: center;
}

.banner-slide.active {
    opacity: 1;
}

.banner-content {
	display: flex;
    flex-direction: column;  /* 垂直排列 */
    justify-content: center; /* 垂直居中 */
    align-items: center;     /* 水平居中 */
    text-align: center;
	color:#fff;
	height:400px;
}

.banner-title {
     font-size: 70px;
    margin-bottom: 20px;
	 font-family: "Microsoft YaHei";
	width:100%;
}

.banner-desc {
    font-size: 36px;
  font-family: "Microsoft YaHei";
  color: rgb(255, 255, 255);
  text-transform: uppercase;
  line-height: 0.306;
}

.banner-btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: #007bff;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    transition: background-color 0.3s;
}

.banner-btn:hover {
    background-color: #0056b3;
}

.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
}

.banner-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 0 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.banner-indicator.active {
    background-color: #fff;
}

/* 内容区域 */
.content {
   // max-width: 1200px;
    margin: 0 auto;
    padding: 0 0px;
	width:1200px;
}

.section-title {
    font-size: 30px;
    margin: 30px 0;
    text-align: center;
	font-family: "Microsoft YaHei";
	color: rgb(92 90 90);
	text-transform: uppercase;
	font-weight: 400;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: #fff;
    border-radius: 8px;
  //  padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
  //  transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 40px;
    color: #007bff;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.feature-desc {
	font-size: 18px;
    color: #666;
    line-height: 1.6;
	margin-bottom: 30px;
}

/* 页脚 */
footer {
    background-color: #f8f9fa;
    padding: 40px 0;
    margin-top: 50px;
}

.footer-content {
	background-color: rgb(49, 49, 49);
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.footer-column h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #333;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #007bff;
}

.copyright {
	background-color: rgb(49, 49, 49);
    text-align: center;
    border-top: 1px solid #e9ecef;
    color: #666;
}

/* 移动端样式 */
@media (max-width: 992px) {
	
	
	
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -80%; /* 修改为只显示80%宽度 */
        width: 80%; /* 修改为只显示80%宽度 */
        height: 100vh;
        background-color: #fff;
        flex-direction: column;
        transition: left 0.3s ease;
        overflow-y: auto;
        padding: 20px 0;
        z-index: 1000;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav-link {
        padding: 15px 20px;
        justify-content: space-between;
    }
    
    .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        display: none;
        width: 100%;
        background-color: #f8f9fa;
        border-radius: 0;
    }
    
    .submenu.active{
        display: block;
    }
	
	.submenu-level2 {
        left: 0;
        background-color: #f0f0f0;
    }
    
    .submenu-link {
        padding-left: 40px;
    }
    
    .submenu-level2 .submenu-link {
        padding-left: 60px;
    }
    
    .banner {
        height: 400px;
    }
    
    .banner-content {
        left: 30px;
        bottom: 80px;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .banner-desc {
        font-size: 16px;
		line-height: 18px;
        width: 80%;
    }
}

@media (max-width: 576px) {
    .banner {
        height: 300px;
    }
	
    
    .banner-content {
        left: 20px;
        bottom: 60px;
    }
    
    .banner-title {
        font-size: 22px;
    }
    
    .banner-desc {
        font-size: 14px;
		line-height: 18px;
        width: 80%;
    }
    
    .banner-btn {
        padding: 8px 20px;
        font-size: 14px;
    }
}

/* 汉堡菜单动画 */
.rotate-down {
    transform: rotate(45deg) translate(5px, 5px);
}

.rotate-up {
    transform: rotate(-45deg) translate(7px, -6px);
}

.hide {
    opacity: 0;
}

.feature-image {
	background-image: linear-gradient(rgba(0,0,0,0), rgba(0,0,0,0)), url('../image/2026031001.jpg');
	width: 100%;
	height: 0;    
	padding-top: 31.65%;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
}

/* 核心业务概览样式 */
.business-section {
    //max-width: 1200px;
	width:1200px;
    margin: 0px auto;
    padding: 0 0px;
    position: relative;
}

.news-section {
    //max-width: 1200px;
	width:100%;
    margin: 60px auto;
    //padding: 0 20px;
    position: relative;
}



.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-subtitle {
    color: #666;
    font-size: 16px;
    margin-top: 10px;
}

.business-slider-container {
    position: relative;
    overflow: hidden;
    padding: 10px 0 20px;
}


.news-slider-container {
	position: relative;
    overflow: hidden;
    padding: 30px 0;
}

.business-slider, .news-slider {
    display: flex;
    transition: transform 0.5s ease;
    gap: 20px;
}

/* 核心业务卡片 - 3张并排 */
.business-card {
    flex: 0 0 calc(33.333% - 14px);
    background: #fff;
  //  border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.business-image {
    width: 100%;
    height: 600px;
    overflow: hidden;
	position: relative; /* 添加相对定位 */
}

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

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

.business-content {
    padding: 20px;
}

.business-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.business-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.learn-more {
    color: #007bff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.learn-more:hover {
    color: #0056b3;
}

.learn-more i {
    font-size: 12px;
}

/* 新闻动态卡片 - 5张，中间加大 */
.news-card {
    flex: 0 0 calc(20% - 16px);
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s;
	height: 320px;
}

.news-card-large {
    flex: 0 0 calc(30% - 14px);
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0,123,255,0.15);
    border: 2px solid #007bff;
    z-index: 2;
}

.news-card-large .news-image {
    height: 200px;
}

.news-card-large .news-content h3 {
    font-size: 18px;
    color: #007bff;
}

.news-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
}

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

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

.news-content {
    padding: 15px;
}

.news-date {
    color: #999;
    font-size: 12px;
    display: block;
    margin-bottom: 8px;
}

.news-content h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #333;
    line-height: 1.4;
}

.news-content p {
    color: #666;
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    color: #007bff;
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.read-more:hover {
    color: #0056b3;
}

/* 轮播按钮 */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 70px;
    border-radius: 8px;
    background: #fff;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    transition: all 0.3s;
}

.slider-btn:hover {
    background: #007bff;
    color: #fff;
}

.slider-btn-left {
    left: -13px;
}

.slider-btn-right {
    right: -13px;
}

/* 指示点 */
.business-dots, .news-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: all 0.3s;
}

.dot.active {
    background: #007bff;
    width: 20px;
    border-radius: 10px;
}

/* 移动端样式 */
@media (max-width: 992px) {
    .business-card {
        flex: 0 0 calc(50% - 10px);
    }
    
    .news-card {
        flex: 0 0 calc(40% - 12px);
    }
    
    .news-card-large {
        flex: 0 0 calc(60% - 12px);
    }
    
    .slider-btn {
        width: 35px;
        height: 35px;
    }
    
    .slider-btn-left {
        left: -10px;
    }
    
    .slider-btn-right {
        right: -10px;
    }
}

@media (max-width: 768px) {
    .business-card {
        flex: 0 0 calc(100% - 0px);
    }
    
    .news-card {
        flex: 0 0 calc(70% - 10px);
    }
    
    .news-card-large {
        flex: 0 0 calc(90% - 10px);
    }
    
    .slider-btn {
        display: none;
    }
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: center;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: white;
    font-size: 26px;
    font-weight: 500;
}

.business-card:hover .image-caption {
    transform: translateY(0);
}



















/* 新闻轮播样式 */
.news-section {
	width:100%;
   // max-width: 1200px;
    margin: 60px auto;
    padding: 0 0px;
    position: relative;
}

.news-carousel-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 30px 0;
}

.news-carousel-track-wrapper {
    overflow: hidden;
    width: 100%;
}

.news-carousel-track {
    display: flex;
    transition: transform 0.5s ease;
    gap: 20px;
}

.news-card {
    flex: 0 0 calc(20% - 16px); /* 5张卡片，减去gap */
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    //opacity: 0.7;
    transform: scale(0.9);
}

.news-card.active {
    transform: scale(1.1);
    opacity: 1;
    box-shadow: 0 10px 25px rgba(0,123,255,0.2);
    border: 2px solid #007bff;
    z-index: 2;
}

.news-card .news-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
}

.news-card.active .news-image {
    height: 170px;
}

.news-card .news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-content {
    padding: 15px;
}

.news-date {
    color: #999;
    font-size: 12px;
    display: block;
    margin-bottom: 8px;
}

.news-content h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #333;
    line-height: 1.4;
}

.news-card.active .news-content h3 {
    color: #007bff;
    font-size: 18px;
}

.news-content p {
    color: #666;
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 轮播按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #fff;
    border: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    transition: all 0.3s;
}

.carousel-btn:hover {
    background: #007bff;
    color: #fff;
}

.carousel-btn-left {
    left: -20px;
}

.carousel-btn-right {
    right: -20px;
}

/* 指示点 */
.news-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.news-indicators .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ddd;
    cursor: pointer;
    transition: all 0.3s;
}

.news-indicators .dot.active {
    background: #007bff;
    width: 20px;
    border-radius: 10px;
}

/* 移动端样式 */
@media (max-width: 992px) {
    .news-card {
        flex: 0 0 calc(33.333% - 14px);
    }
    .carousel-btn-left {
        left: -10px;
    }
    .carousel-btn-right {
        right: -10px;
    }
}

@media (max-width: 768px) {
    .news-card {
        flex: 0 0 calc(50% - 10px);
    }
}

@media (max-width: 576px) {
    .news-card {
        flex: 0 0 calc(100% - 0px);
    }
    .carousel-btn {
        display: none;
    }
}



/* 轮播容器：居中 + 限制宽度 + 相对定位 */
        .news-carousel {
           // width: 90%;
           // max-width: 1200px;
          //  margin: 50px auto;
            position: relative;
            height: 400px; /* 轮播高度，可自定义 */
            overflow: hidden;
        }

        /* 卡片列表：绝对定位 + 居中 + 3D变换开启 */
        .carousel-list {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            display: flex;
            justify-content: center;
            align-items: center;
            perspective: 1000px; /* 开启3D透视，增强堆叠感 */
        }

        /* 单个卡片：基础样式 + 过渡动画 */
        .carousel-item {
            position: absolute;
            width: 650px; /* 卡片宽度，可自定义 */
            height: 380px; /* 卡片高度，可自定义 */
           // border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            transition: all 0.5s ease; /* 切换动画 */
            cursor: pointer;
        }

        /* 卡片图片：铺满容器 */
        .carousel-item img {
            width: 100%;
            height: 100%;
            object-fit: cover; /* 保持图片比例，裁剪多余部分 */
        }

        /* 轮播控制按钮 */
        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255,255,255,0.8);
            border: none;
            font-size: 24px;
            cursor: pointer;
            z-index: 10;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        .prev-btn { left: 0px; }
        .next-btn { right: 0px; }

        /* 初始堆叠位置：5张卡片的层级/位置/大小 */
        /* 第1张：左2位，层级1，缩小 */
        .carousel-item:nth-child(1) {
            z-index: 1;
            transform: translate(-120%, 0) scale(0.7);
        }
        /* 第2张：左1位，层级2，稍缩小 */
        .carousel-item:nth-child(2) {
            z-index: 2;
            transform: translate(-60%, 0) scale(0.85);
        }
        /* 第3张：中间，层级3，最大（最高） */
        .carousel-item:nth-child(3) {
            z-index: 3;
            transform: translate(0, 0) scale(1);
        }
        /* 第4张：右1位，层级2，稍缩小 */
        .carousel-item:nth-child(4) {
            z-index: 2;
            transform: translate(60%, 0) scale(0.85);
        }
        /* 第5张：右2位，层级1，缩小 */
        .carousel-item:nth-child(5) {
            z-index: 1;
            transform: translate(120%, 0) scale(0.7);
        }
		 .img-caption {
            position: absolute; /* 绝对定位 */
            bottom: 0; /* 贴紧卡片底部 */
            left: 0;
            right: 0; /* 铺满卡片宽度 */
            padding: 8px 15px; /* 上下内边距，增加文字区域高度 */
            background-color: rgba(0, 0, 0, 0.6); /* 半透明黑底，提升文字可读性 */
            color: #fff; /* 白色文字 */
            font-size: 20px; /* 文字大小 */
            text-align: center; /* 文字居中 */
            z-index: 1; /* 保证文字在图片上方 */
			display: -webkit-box;
			-webkit-line-clamp: 1;
			-webkit-box-orient: vertical;
        }

        /* 响应式：小屏幕缩小卡片尺寸 */
        @media (max-width: 900px) {
            .carousel-item {
                width: 160px;
                height: 220px;
            }
            .carousel-item:nth-child(1) { transform: translate(-180px, 0) scale(0.7); }
            .carousel-item:nth-child(2) { transform: translate(-90px, 0) scale(0.85); }
            .carousel-item:nth-child(4) { transform: translate(90px, 0) scale(0.85); }
            .carousel-item:nth-child(5) { transform: translate(180px, 0) scale(0.7); }
			.img-caption { font-size: 12px; } /* 小屏幕缩小文字 */		 
			.news-carousel{height:200px;}
        }