body {
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}    

header {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 30px 0;
    position: relative;
    z-index: 1;
}

.logo {
    width: 300px;
    height: auto;
    margin-right: 80px;
}

nav {
    margin-left: 20px;
    flex-grow: 1;
    display: block;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-right: 40px;
    position: relative;
    margin-top:45px;
   
}

nav ul li .active{
    color:#00489A;
    font-weight:bolder;
   
}

nav ul li a {
    text-decoration: none;
    color: #333;
     font-size: 17px;
     line-height:200%;
        display:block;
}

.search-icon {
    max-width: 100%;
    height: auto;
    margin-left: 20px;
    cursor: pointer;
}

.request-button {
    background-color: #00489A;
    color: white;
    border: none;
    padding: 10px 10px;
    margin: 0 20px;
    cursor: pointer;
}

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

.dropdown-content {
    display: none;
    position: absolute;
    top: 30px;
    left: 0;
    width: 360px;
    background-color: #ffffff;
    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
    z-index: 2;
    padding: 20px;
}


.dropdown-content .dropdown-row a:hover{background:#efeeee; color:#000}
 
.dropdown-column {
    float: left;
    width: 33.33%;
    box-sizing: border-box;
    padding: 0 10px;
}

.dropdown-column a {
    color: black;
    padding: 8px 10px;
    line-height:180%;
    text-decoration: none;
    display: block;
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* 清除浮动 */
.clearfix::after {
    content: "";
    clear: both;
    display: table;
}

/* 通栏 banner 样式 */
.banner {
     
    color: white;
    padding: 0;
    width: 100%;

    background-size:100%;
      background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
 
}

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

.banner-content h1 {
    font-size: 40px;
    margin-bottom: 20px;
}

.banner-content p {
    margin-bottom: 30px;
}

.banner-button {
    background-color: #e5730c;
    color: white;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 16px;
}

.banner-button a{
   
    color: white;
 
}

      .lang-icon {
            width: 30px;
            height: auto;
            margin: 10px 10px;

            cursor: pointer;
        }
/* 关于我们模块样式 */
.about-us {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    padding: 50px 0;
}

.about-us-left {
    flex: 1;
    padding-right: 50px;
}

.about-us-left h2 {
    font-size: 24px;
    font-weight: lighter;
}

.about-us-title {
    font-size: 35px;
    margin-bottom: 30px;
}

.about-us-blocks {
    display: flex;
    justify-content: space-between;
}

.about-us-block {
    width: 30%;
    text-align: center;
}

.big-orange-number {
    font-size: 40px;
    color: orange;
    display: block;
}

.gray-text {
    font-size: 16px;
    color: gray;
}

.about-us-right {
    flex: 1;
}

/* 产品推荐模块样式 */
/* 产品推荐模块样式 */
.product-recommendation {
    background-color: #B0B3B5;
    width: 100%;
    padding: 50px 0;
}

.product-recommendation-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.product-title {
    color: white;
    text-align: center;
    margin-bottom: 30px;
}


.product-recommendation-content  .index-product-gird {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}


.product-recommendation-content .product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.product-grid2 {
    line-height:150%;
    font-size:18px!important;
    
}

.product-item {
    background-color: white;
    border-radius: 10px;
    display: flex;
    padding: 20px;
    /* 调整为左右布局 */
    flex-direction: row; 
    align-items: center;
}

.product-item img {
    width: 200px;
     display: flex;
    height: 200px;
    margin-left: 20px;
}
.product-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1; /* 让 .product-info 占据剩余空间 */
}    

.product-info h3 {
    font-size: 30px;
    color: black;
    margin: 0;
    margin-bottom: 10px;
}

.product-info p {
    margin: 0;
    text-align:left;
}

.product-info p a{
    color:#fff;
    display:block;
    width:100px;
    height:30px;
    line-height:30px;
    text-align:center;
        background-color: #00489A;
    
}

.all-products-button {
    background-color: yellow;
    color: black;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 16px;
    display: block;
    margin: 30px auto 0;
}    
/* 应用区域模块样式 */
.application-area {
    background-color: white;
    width: 100%;
    padding: 50px 0;
}

.application-content {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

.application-title {
    font-size: 45px;
    color: black;
    text-align: center;
    margin-bottom: 30px;
}

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

.application-item {
    position: relative;
    overflow: hidden;
    background-color: rgba(204, 204, 204, 0.5);
    transition: transform 0.3s ease;
  
    
}

.application-item img {
    width: 100%;
    height:300px;
    display: block;
    opacity: 1;

}

.application-item:hover {
    transform: scale(1.05);
    background-color: rgba(204, 204, 204, 0);
}

.overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 100%;
    opacity: 1;
}

.overlay h3 {
    font-size: 30px;
    color: white;
    margin-bottom: 30px;
}

.overlay h3 a{
    
    color: white;
 
}


.read-more {
    color: yellow;
}

/* SOLUTIONS 部分样式 */
.solutions {
    width: 100%;
    padding: 50px 0;
    /* 添加背景图片 */
    background-image: url('/skin/images/index00.jpg');
    /* 设置背景固定 */
    background-attachment: fixed;
    /* 让背景覆盖整个元素 */
    background-size: 100%;
    
    /* 背景居中 */
    background-position: center;
}

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

.white-block {
    background-color: white;
    padding: 40px;
    width: 50%;
}

.white-block h2 {
    margin-top: 0;
}

.slogan {
    font-size: 40px;
}

.description {
    font-size: 14px;
    color: gray;
}

.contact-button {
    background-color: #00489A;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    margin-top: 20px;
}

.contact-button a{
   color:#fff;
}

/* 留言部分样式 */
.message-section {
    background-color: #efefef;
    width: 100%;
    padding: 50px 0;
}

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

.message-title {
    font-size: 40px;
    text-align: center;
}

.message-subtitle {
    font-size: 20px;
    color: gray;
    text-align: center;
}


.message-content img{max-width:10%; height:auto}
.message-form {
    display: flex;
    flex-direction: column;
      width:60%;
    margin:0 auto;
}
.message-form .formname{height:40px; line-height:150%; padding-left:10px}
.message-form span{ display:block; float:left; width:auto; height:40px; line-height:40px; margin-right:5px; padding-left:5px}
.message-form .red{color:#ff0000}
.message-form input,
.message-form textarea {
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    width:90%;
}

.message-button {
    background-color: yellow;
    color: black;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 16px;
    align-self: center;
}

/* footer 部分样式 */
.footer {
    background-color: #00489A;
    width: 100%;
    padding: 50px 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
}

.footer-module {
    color: white;
}

.footer-module h3 {
    margin-bottom: 10px;
}
.footer-module h3 a{
    color:#fff;
}


.footer-module ul {
    list-style-type: none;
    padding: 0;
}

.footer-module ul li {
    margin-bottom: 5px;
}

.footer-module ul li a {
    color: white;
    text-decoration: none;
}

/* 版权部分样式 */
.copyright {
    color: white;
    text-align: center;
    margin-top: 20px;
    border-top:1px solid #fff;
}

/* 弹窗模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 3;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
}

.modal-content img{width:100px; height:auto}
.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

/* 搜索弹窗样式 */
.search-modal {
    display: none;
    position: fixed;
    z-index: 4;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(128, 128, 128, 0.8);
}

.search-modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    max-width: 600px;
}

.search-form {
    display: flex;
}

.search-form input {
    flex-grow: 1;
    padding: 10px;
    border: none;
    border-radius: 4px 0 0 4px;
}

.search-submit-button {
    background-color: white;
    color: black;
    border: none;
    padding: 10px 20px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

/* 手机端菜单样式 */
.mobile-menu-button {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    cursor: pointer;
    margin-left: auto;
}

.bar {
    width: 100%;
    height: 3px;
    background-color: blue;
    border-radius: 3px;
}

@media (max-width: 768px) {
    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
        z-index: 2;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li {
        margin: 10px;
    }

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

    .search-icon {
        margin-left: 10px;
    }

    .request-button {
        display: none;
    }

    /* 手机端关于我们模块调整为一行一列上下结构 */
    .about-us {
        flex-direction: column;
    }
    .about-us-left {
        padding-right: 0;
        margin-bottom: 20px;
    }

    /* 手机端产品区域内容模块调整为一行一列布局 */
    .product-grid {
        grid-template-columns: 1fr;
    }
    .product-item {
        flex-direction: column;
    }
    .product-item img {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    
    /* 产品详情内容部分调整为上下结构 */
    .product-detail-content {
        flex-direction: column;
    }

    .product-image-section {
        width: 100%!important;
        display：flex;
        margin-bottom: 30px;
    }

    .thumbnails {
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
    }

    .thumbnails img {
        width: 18%;
    }

    .main-image {
        width: 100%;
        margin-top: 20px;
    }

    .product-info-section {
        width: 100%!important;
        padding-left: 0!important;
    }

    /* 底部 footer 部分版权上面内容调整为 1 行 1 列布局 */
    .footer-content {
        flex-direction: column;
    }

    .footer-module {
        margin-bottom: 20px;
    }
}

nav.show {
    display: block;
}

/* 关于我们页面中间内容区域样式 */
.about-us-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 20px;
}

/* 面包屑导航容器样式 */
.breadcrumb-container {
    background-color: #f7f7f7;
    width: 100%;
}

/* 面包屑导航内容样式 */
.breadcrumb-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 20px;
}

.breadcrumb-content a {
    color: #333;
    text-decoration: none;
}

.breadcrumb-content span {
    color: #999;
}
.about-us-title {
    margin-bottom: 30px;
}

.about-us-title h2 {
    font-size: 30px;
    margin: 0;
}

.about-us-text p {
    line-height: 1.6;
    margin-bottom: 20px;
}

/* 产品中心页面样式 */
/* 产品中心页面样式 */
.product-center {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    padding: 50px 0;
}

.product-menu {
    width: 25%;
    padding-right: 20px;
}

.product-menu img{max-width:100%; height:auto}

/* 大标题样式 */
.product-menu-title {
    font-size: 24px;
    margin-bottom: 10px;
}

/* 横线样式 */
.product-menu-divider {
    border: none;
    border-bottom: 1px solid #ccc;
    margin-bottom: 20px;
}

.product-nav {
    list-style-type: none;
    padding: 0;
}

.product-nav li {
    margin-bottom: 10px;
}

.product-nav li ul {
    list-style-type: none;
    padding-left: 20px;
    display: none;
}

.toggle {
    cursor: pointer;
    margin-right: 10px;
}

.product-display {
    width: 75%;
}

.product-display-title {
    font-size: 24px;
    margin-bottom: 10px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.product-item {
    text-align: center;
    display: block; /* 使用 flex 布局 */
    flex-direction: row; /* 子元素水平排列 */
    align-items: center; /* 垂直居中对齐 */
    width: 90%;
    padding: 0;
    justify-content: space-between; /* 子元素之间保持一定间距 */
}


.index-product-gird .product-item {
    text-align: center;
    display: flex; /* 使用 flex 布局 */
    flex-direction: row; /* 子元素水平排列 */
    align-items: center; /* 垂直居中对齐 */
    width: 100%;
    justify-content: space-between; /* 子元素之间保持一定间距 */
}

.index-product-gird .product-item img {
    max-width: 50%; /* 可根据实际情况调整图片宽度 */
    display: block;
    height: auto;
    margin-right: 10px; /* 图片右侧添加间距 */
}

.product-item img {
    max-width: 100%; /* 可根据实际情况调整图片宽度 */
    display: block;
    height: auto;
    clear: both;
    margin-right: 10px; /* 图片右侧添加间距 */
}

.index-product-gird  .product-item h3 {
    margin: 0;
    width:100%;

    text-align:left;
}

.index-product-gird  .product-item h3 a{
    color:#000;
     text-align:left;
}


.product-item h3 {
    margin: 0;
    width:100%;
  font-weight: lighter;
    font-size: 15px;
    line-height: 30px;
    height: 30px;
    text-align:center;
}

.pagination {
    margin-top: 20px;
    text-align: center;
}

.pagination a {
    color: black;
    padding: 8px 16px;
    text-decoration: none;
    transition: background-color.3s;
}

.pagination a.active {
    background-color: #4CAF50;
    color: white;
}

.pagination a:hover:not(.active) {
    background-color: #ddd;
}

/* 产品分类 a 标签样式 */
.product-nav a {
    color: black;
    text-decoration: none;
}

.product-nav a:hover {
    color: red;
}

.product-nav a:visited {
    color: black;
}
/* 主体内容样式 */
.product-detail-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 20px;
}

.product-detail-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.product-image-section {
    width: 50%;
    display: flex;
}

.thumbnails {
    width: 20%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.thumbnails img {
    width: 100%;
    height: auto;
    cursor: pointer;
}

.main-image {
    width: 80%;
    position: relative;
}

.main-image img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease-in-out;
}

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

.product-info-section {
    width: 50%;
    padding-left: 30px;
}

.product-info-section .product-title {
    color: #000;
    text-align: center;
    margin-bottom: 30px;
}
.product-title {
    font-size: 45px;
    margin-bottom: 40px;
}

.product-description {
    margin-bottom: 20px;
}

.product-list {
    list-style-type: disc;
    padding-left: 20px;
    margin-bottom: 20px;
}

.get-quote-button {
    background-color: blue;
    color: white;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 16px;
}

.product-description-section {
    margin-top: 50px;
}

.description-title {
    font-size: 24px;
    margin-bottom: 20px;
}

.description-text {
    line-height: 1.6;
}

/* 新闻列表主体内容样式 */
.news-list-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 20px;
    display: flex;
}

.news-menu {
    width: 25%;
    padding-right: 20px;
}

.news-menu-title {
    font-size: 24px;
    margin-bottom: 10px;
}

.news-menu-divider {
    border: none;
    border-bottom: 1px solid #ccc;
    margin-bottom: 20px;
}

.news-nav {
    list-style-type: none;
    padding: 0;
}

.news-nav li {
    margin-bottom: 10px;
}

.news-nav li ul {
    list-style-type: none;
    padding-left: 20px;
    display: none;
}

 
.news-display {
    width: 75%;
}

.news-display-title {
    font-size: 24px;
    margin-bottom: 10px;
}

.news-items {
    display: flex;
    flex-direction: column;
}

.news-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.news-title {
    text-decoration: none;
    color: #333;
    font-size: 16px;
}

.news-date {
    color: #999;
    font-size: 14px;
}

/* 新闻列表主体内容样式 */
.news-list-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 20px;
    display: flex;
}

.news-menu {
    width: 25%;
    padding-right: 20px;
}

.news-menu-title {
    font-size: 24px;
    margin-bottom: 10px;
}

.news-menu-divider {
    border: none;
    border-bottom: 1px solid #ccc;
    margin-bottom: 20px;
}

.news-nav {
    list-style-type: none;
    padding: 0;
}

.news-nav li {
    margin-bottom: 10px;
}

.news-nav li ul {
    list-style-type: none;
    padding-left: 20px;
    display: none;
}

.toggle {
    cursor: pointer;
    margin-right: 10px;
}

.news-display {
    width: 75%;
}

.news-display-title {
    font-size: 24px;
    margin-bottom: 10px;
}

.news-items {
    display: flex;
    flex-direction: column;
}

.news-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.news-title {
    text-decoration: none;
    color: #333;
    font-size: 16px;
}

.news-date {
    color: #999;
    font-size: 14px;
}

.pagination{display:inline-block;padding-left:0;margin:20px 0;border-radius:4px;}
.pagination>li{display:inline;}
.pagination>li>a,.pagination>li>span{position:relative;float:left;padding:6px 12px;line-height:1.42857;text-decoration:none;color:#337ab7;background-color:#fff;border:1px solid #ddd;margin-left:-1px;}
.pagination>li:first-child>a,.pagination>li:first-child>span{margin-left:0;border-bottom-left-radius:4px;border-top-left-radius:4px;}
.pagination>li:last-child>a,.pagination>li:last-child>span{border-bottom-right-radius:4px;border-top-right-radius:4px;}
.pagination>li>a:focus,.pagination>li>a:hover,.pagination>li>span:focus,.pagination>li>span:hover{z-index:2;color:#23527c;background-color:#eee;border-color:#ddd;}
.pagination>.active>a,.pagination>.active>a:focus,.pagination>.active>a:hover,.pagination>.active>span,.pagination>.active>span:focus,.pagination>.active>span:hover{z-index:3;color:#fff;background-color:#337ab7;border-color:#337ab7;cursor:default;}