/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Source Han Sans;
}

body {
    color: #333;
    line-height: 1.6;
    background-color: white;
    scroll-behavior: smooth;
}

.containerheader {
    margin: 0 auto;
    padding: 0 15px;
    max-width: 1920px;
    margin-left: 7%
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-nav-container {
    display: flex;
    align-items: center;
    flex: 1;
}

.logo {
    margin-top: 18px;
    margin-bottom: 4px;
    height: 40px;
    margin-right: 81px;
    width: 300px;
}

.nav-main {
    flex: 1;
}

.nav-main ul {
    display: flex;
    list-style: none;
    margin-left: 24%;
}

@media(max-width:1820px) {
    .nav-main ul {
        margin-left: 0%;
    }

    .nav-main>ul>li {
        position: relative;
        margin: 0 15px;
    }
}

@media(max-width:1555px) {
    .nav-main>ul>li {
        position: relative;
        margin: 0 0px;
    }

    .logo {
        margin-right: 50px;
    }

}

.nav-main>ul>li {
    position: relative;
    margin: 0 20px;
}

.nav-main a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    display: block;
    transition: all 0.3s;
}

/* 一级导航 - 20px字体 */
.nav-main>ul>li>a {
    font-size: 20px;
    padding: 12px 0;
    position: relative;
    font-family: Source Han Sans;
    font-size: 20px;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    white-space: nowrap;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #3d3d3d;
}

.nav-main>ul>li>a:hover {
    color: #1e88e5;
}

.nav-main>ul>li>a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: #1e88e5;
    transition: width 0.3s;
}

.nav-main>ul>li>a:hover::after {
    width: 100%;
}

/* 汉堡菜单按钮 - 默认隐藏 */
.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger-menu span {
    height: 3px;
    width: 100%;
    background-color: #333;
    border-radius: 3px;
    transition: all 0.3s;
}

/* 搜索框样式 */
.search-container {
    background-color: #EFEFEF;
    border-radius: 60px;
    width: 210px;
    margin-right: 5%;
}

.search-toggle {
    background: #EFEFEF;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px 10px;
    transition: color 0.3s;
    margin-top: 30%;
    border-radius: 60px;
}

.fas-fa-search {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    background-color: #EFEFEF;
}


.search-box {
    width: 210px;
    right: 0%;
    background: #EFEFEF;
    border-radius: 60px;
    display: flex;

}

.search-input {
    background-color: #EFEFEF;
    border-radius: 60px 0px 0px 60px;
    flex: 1;
    border: none;
    padding: 8px 12px;
    outline: none;

}

.search-submit {
    background-color: #EFEFEF;
    color: white;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 0px 60px 60px 0px;

}



/* 搜索结果面板 */
.search-results {
    margin-right: 8%;
    position: absolute;
    top: 100%;
    width: 260px;
    background: white;
    border-radius: 0px 0px 4px 4px;
    max-height: 600px;
    overflow-y: auto;
    display: none;
    z-index: 1000;
}

.search-results.active {
    display: block;
}

.search-results a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    border-bottom: 1px solid #eee;
    transition: background 0.2s;
}

.search-results a:hover {
    background: #f5f9ff;
    color: #1e88e5;
}

/* 主内容区样式 */
.page-title {
    padding: 0px 0;
    margin-bottom: 0px;
    text-align: center;
    font-size: 50px;
}

.page-title h1 {
    font-size: 50px;
    margin-bottom: 10px;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    list-style: none;
}

.breadcrumb li {
    margin: 0 0px;
}

.breadcrumb a {
    color: #868686;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb li:not(:last-child)::after {
    content: ">";
    margin-left: 10px;
    color: #e3f2fd;
}


@media(max-width:1820px) {
    .nav-main ul {
        margin-left: 0%;
    }

    .nav-main>ul>li {
        margin: 0 15px;
    }
}

@media(max-width:1555px) {
    .nav-main>ul>li {
        margin: 0 10px;
    }

    .logo {
        margin-right: 50px;
    }

}

@media(max-width:1384px) {
    .nav-main>ul>li {
        margin: 0 5px;
    }

    .logo {
        margin-right: 35px;
    }
}

@media(max-width:1384px) {
    .containerheader {
        margin-left: 4%;
        padding: 0px;
    }
}



/* 产品与服务区域 */
.products-services {
    display: flex;
    margin-bottom: 0px;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0);
}

.sidebar {
    width: 300px;
    background-color: #f5f5f5;
    padding: 20px 0;
    border-right: 1px solid #eee;
}

.sidebar-header {
    padding: 0 20px 15px;
    border-bottom: 1px solid #ddd;
    margin-bottom: 15px;
}

.sidebar-header h2 {
    color: #1e88e5;
    font-size: 22px;
}

.submenu {
    list-style: none;
}

.submenu li {
    margin-bottom: 5px;
    position: relative;
}

.submenu>li>a {
    display: block;
    padding: 12px 20px;
    text-decoration: none;
    color: #555;
    transition: all 0.3s;
    position: relative;
    font-weight: 500;
    border-left: 4px solid transparent;
}

.submenu>li>a:hover,
.submenu>li>a.active {
    font-family: Source Han Sans;
    font-size: 22px;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;

    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #242424;
}

/* 三级导航 - 直接显示，不需要展开收起，去除圈点 */
.sub-submenu {
    list-style: none;
    padding-left: 30px;
    margin: 5px 0 15px 0;
}

.sub-submenu li {
    margin-bottom: 3px;
}

.sub-submenu a {
    display: block;
    padding: 8px 15px 8px 5px;
    text-decoration: none;
    color: #777;
    transition: all 0.2s;
    font-size: 14px;
    border-left: 2px solid transparent;
    position: relative;
}

.sub-submenu a:hover,
.sub-submenu a.active {
    color: #1e88e5;
    background-color: #f5f9ff;
    border-left-color: #1e88e5;
}

/* 内容区域样式 */
.content {
    flex: 1;
    padding: 30px;
}

.content-section {
    margin-bottom: 40px;
    scroll-margin-top: 120px;
}


.content-section h2 {
    font-size: 50px;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e3f2fd;
    text-align: center;
}



.content-section p {
    color: #3e3e3e;
}

.content-section h3 {
    color: #333;
    margin: 25px 0 15px;
    font-size: 35px;
}

@media (max-width: 768px) {
    .content-section h3 {
        font-size: 15px;
    }

    .content-section p {
        font-size: 12px;
    }
}


.content-section h4 {
    color: #333;
    margin: 25px 0 15px;
    font-size: 24px;
}

.anli-category-header h4 {
    margin: 0px;
    text-align: center;
}

@media (max-width: 768px) {
    .content-section h4 {
        font-size: 12px;
    }

}

.guihua_liucheng {
    height: 223px;

    width: 753px;
    max-width: 100%;
    /* 图片最大宽度不超过容器 */
    height: auto;
    /* 高度自动调整保持比例 */
    display: block;
    /* 避免图片下方出现间隙 */
}

.zhinengzhizao_chenshudu {
    height: 359px;
    margin-top: 35px;
    width: 748px;
    max-width: 100%;
    /* 图片最大宽度不超过容器 */
    height: auto;
    /* 高度自动调整保持比例 */
    display: block;
    /* 避免图片下方出现间隙 */
}

.service-desc {
    margin-bottom: 30px;
    line-height: 1.8;
}

.feature-list {
    list-style: none;
    margin: 20px 0;
}

.feature-list li {
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
}

.feature-list li:before {
    content: "•";
    color: #1e88e5;
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

/* 产品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;

}

/* 产品网格-行业解决方案 */
.product-grid-hy {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.product-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
}

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

.product-img {
    height: 300px;
    width: 340;
    background-color: #eee;
    background-position: center;
    background-size: cover;
}

.product-content {
    padding: 20px;
}

.product-content h3 {
    margin-bottom: 10px;
    color: #333;
}

.product-content p {
    color: #666;
    margin-bottom: 15px;
    font-size: 14px;
}

.product-link {
    display: inline-block;
    color: #1e88e5;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
}

.product-link:hover {
    text-decoration: underline;
}

/* 页脚样式 */
footer {
    padding: 10px 10px 20px;

    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-family: Source Han Sans;
    margin-bottom: 0px;
    padding-bottom: 0px;
    color: #097adc;
    font-size: 22px;
    font-weight: normal;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 768px) {
    .footer-section h3 {
        font-size: 12px;
    }

    .footer-content {

        margin-bottom: 5px;
    }
}

.footer-section h3 .toggle-icon {
    font-size: 12px;
    display: none;
    transition: transform 0.3s ease;
    margin-right: 20px;
}

.footer-section h3:hover::after {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;

    transition: background-color 0.3s;
}

.footer-section ul {
    list-style: none;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    overflow: hidden;
}

.footer-section li {
    margin-bottom: 2px;
    margin-top: 2px;
    font-family: Source Han Sans;
}

.footer-section a {
    color: #555;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 18px;
    display: block;
    padding: 0px 0;
}

.footer-sectionright {
    border-right: 1px solid #d8d8d8;
    padding-bottom: 30%;
}

@media (max-width: 768px) {
    .footer-section a {
        font-size: 10px;
    }

    .footer-sectionright {
        border-right: 0px;
        border-bottom: 1px solid #d8d8d8;
        padding-bottom: 2%;
    }

}

.footer-section a:hover {
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #37474f;
    font-size: 14px;
    color: #aaa;
}

.footer-icon-item {
    font-size: 22px;
    color: #097adc;
    font-family: Source Han Sans;
    display: flex;
    align-items: center;
    margin-bottom: 5px;
}

@media (max-width: 768px) {
    .footer-icon-item {
        font-size: 12px;
    }


}

.footer-section p {
    font-size: 18px;
    color: #555;
}

@media (max-width: 768px) {
    .footer-section p {
        font-size: 10px;
        color: #555;
    }
}

.footer-custom-icon {
    width: 24px;
    height: 24px;
    margin-right: 10px;
    object-fit: contain;
}

@media (max-width: 768px) {
    .footer-custom-icon {
        width: 12px;
        height: 12px;
    }
}

/* 响应式设计 页脚*/

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .footer-section h3 .toggle-icon {
        display: block;
    }

    .footer-section ul {
        max-height: 0;
        opacity: 0;
    }

    .footer-section.active ul {
        max-height: 500px;
        opacity: 1;
        margin-top: 10px;
    }

    .footer-section.active h3 .toggle-icon {
        transform: rotate(90deg);
    }
}

/* 响应式设计 */

@media (max-width: 768px) {
    .container {
        padding: 0 0px;
    }

    .logo-nav-container {
        width: 100%;
    }

    .nav-main ul {
        flex-direction: column;
    }

    .nav-main>ul>li {
        margin: 0;
        border-bottom: 1px solid #eee;
    }

    .nav-main>ul>li>a {
        padding: 15px;
        font-size: 18px;
    }

    .search-container {
        margin-left: 0;
        width: 50%;
        display: none;
    }

    .search-box {
        position: static;
        transform: none;
        width: 100%;
        display: none;
    }

    .search-box.active {
        width: 100%;
        display: flex;
    }

    .search-results {
        width: 100%;
    }

    .clickable-card {
        width: 175px;
        height: 163px;
    }

    .content-section h1 {
        font-size: 50px;
        font-weight: bold;
        line-height: normal;
        letter-spacing: 0em;
        margin-bottom: 20px;
        padding-bottom: 10px;
        border-bottom: 2px solid #e3f2fd;
        text-align: center;
        margin-top: 20px;
    }

    .content-section h2 {
        font-size: 15px;
        font-weight: bold;
        line-height: normal;
        letter-spacing: 0em;
        margin-bottom: 0px;
        padding-bottom: 0px;
        border-bottom: 0px solid #e3f2fd;
        text-align: center;
        margin-top: 20px;
    }

    .content {
        padding: 0px;
    }

    .product-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 5px;
        margin-top: 10px;
        /* max-height: 300px;*/
        max-width: 180;
    }

    /* 产品网格-行业解决方案 */
    .product-grid-hy {
        grid-template-columns: repeat(3, 1fr);
        gap: 2px;
        margin-top: 1%;
        margin-left: 3%;
    }

    .sub-submenu {
        padding-left: 20px;
    }

    .content-section {
        scroll-margin-top: 180px;
    }
}

/* 返回顶部按钮样式 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, #4a7be4, #1927ec);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
}

.arrow {
    width: 20px;
    height: 20px;
    border-top: 3px solid #fff;
    border-right: 3px solid #fff;
    transform: rotate(-45deg);
    margin-top: 5px;
}

/* 自适应视频尺寸 */
.responsive-video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 卡片基础样式 */
.clickable-card {
    display: block;

    background-color: white;
    border-radius: 20px;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0);
    text-decoration: none;
    color: #333;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

/* 卡片悬停效果 
.clickable-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}*/

/* 图片容器 */
.card-image-container {
    width: 80%;
    height: 80%;
    margin: 30px auto 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
}

/* 图片样式 */
.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

@media (max-width: 768px) {
    .card-image-container {
        width: 89px;
        height: 86px;
        border-radius: 10px;
    }

    .card-image {
        border-radius: 10px;
    }
}

/* 悬停时图片放大效果 */
.clickable-card:hover .card-image {
    transform: scale(1.1);
}

/* 卡片内容区域 */
.card-content {
    padding: 0 20px;
    text-align: center;
}

/* 卡片标题 */
.card-title {
    font-size: 22px;
}

@media (max-width: 768px) {
    .card-title {
        font-size: 12px;
    }
}

.custom-icon {
    width: 24px;
    height: 24px;

    object-fit: contain;
}

/* 不同图标的颜色样式 */
.check-icon {
    filter: hue-rotate(120deg) saturate(200%);
}

.warning-icon {
    filter: hue-rotate(40deg) saturate(200%);
}

.info-icon {
    filter: hue-rotate(200deg) saturate(200%);
}

.star-icon {
    filter: hue-rotate(300deg) saturate(200%);
}


/*   <!-- 行业解决方案卡片--> */
.main-card {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0);
}

/* 背景图片样式 */
.card-background {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

/* 悬停时背景放大效果 */
.main-card:hover .card-background {
    transform: scale(1.05);
}

/* 内置小卡片 */
.inner-card {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    height: 30%;
    background: rgba(0, 0, 0, 0.6);
    /* 透明度调整为60% */
    /*backdrop-filter: blur(8px); /* 增加模糊度 */
    /*-webkit-backdrop-filter: blur(8px); /* Safari兼容 */
    border-radius: 20px;
    padding: 20px;
    box-sizing: border-box;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    /* 添加半透明边框 */
    transition: all 0.3s ease;
}

/* 悬停时小卡片效果 */
.main-card:hover .inner-card {
    /*background: rgba(255, 255, 255, 0.95);*/
    transform: translateX(-50%) translateY(-10px);
}

/* 小卡片标题 */
.inner-title {
    font-size: 30px;
    font-weight: bold;
    color: white;
    margin-bottom: 4px;
    text-align: center;
}

/* 小卡片描述 */
.inner-description {
    font-size: 14px;
    color: white;
    line-height: 1.5;
    text-align: center;
}

@media (max-width: 768px) {
    .main-card {
        width: 115px;
        height: 123px;
    }

    .inner-title {
        font-size: 8px;
        margin-top: -12px;
    }

    .inner-description {
        font-size: 4px;
    }

    .inner-card {
        width: 102px;
        height: 42px;
        border-radius: 10px;
        bottom: 10px;
    }
}

/* 整体链接效果 */
.card-link {
    text-decoration: none;
    display: block;
}

/*成功案例相关样式*/
.anli-divbody {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;

    width: 100%;
}

/* 内容区域样式 */
.anli-content {
    flex: 1;
    padding: 0px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-auto-rows: calc(204 / 400 * min(100%, 400px));
    justify-content: center;
    row-gap: 50px;
    column-gap: 0;
    max-height: 750px;
}

.anli-card {
    width: 100%;
    height: 100%;
    padding-bottom: 51%;
    /* 204/400=0.51 */
    position: relative;
    overflow: hidden;
    border: none;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    text-decoration: none;
}

.anli-category-header {
    background: white;
    padding: 0px 0px;
    border-bottom: 1px solid #e1e4e8;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    display: none;
}

@media(max-width:768px) {
    .anli-category-header {
        display: inline
    }
}

.anli-category-header h4 {
    margin: 0px；
}

.anli-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    z-index: 1;
}

/* 第一个卡片的颜色填充样式 */
.anli-card-color-fill {
    width: 100%;
    height: 100%;
    position: absolute;
    z-index: 1;
    background-color: #bf0d0d;
    opacity: 1;
}

.anli-card-content {
    position: relative;
    z-index: 2;
    text-align: left;
    color: white;
    width: 100%;
    height: 50%;
    padding-left: 0%;
}

.anli-card-title {
    font-family: Source Han Sans;
    font-size: 24px;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;

    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #ffffff;
    margin-left: 10%;
    margin-right: 20%;
    margin-top: 10%;
}

.anli-card-desc {
    font-family: Source Han Sans;
    font-size: 16px;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;

    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #ffffff;
    margin-left: 10%;
    margin-right: 10%;
}

/* 响应式布局调整 */
@media (min-width: 768px) {
    .anli-divbody {
        max-height: 100%;

    }

    .anli-nav-container {
        width: 200px;
        height: 50vh;
        padding: 20px 0;
    }

    .anli-content {
        grid-template-columns: repeat(2, 1fr);

    }
}

.index-anli-nav-tabs-container {
    display: flex;
    flex-direction: column;
    max-width: 100%;

    background: white;
    position: relative;
}

@media (min-width: 768px) {
    .index-anli-nav-tabs-container {
        flex-direction: row;
    }
}

@media (max-width: 768px) {
    .anli-content {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 89px;
        row-gap: 10px;
    }

    .anli-card-title {
        font-size: 15px;

        margin-left: 10%;
        margin-right: 20%;
        margin-top: 10%;
    }

    .anli-card-desc {
        font-family: Source Han Sans;
        font-size: 6px;

        margin-left: 10%;
        margin-right: 10%;
    }
}



/* 移动端菜单按钮 */
.index-anli-mobile-menu-btn {
    display: block;

    left: 15px;
    width: 40px;
    background: #f8f9fa;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin-top: -7%;
    float: right;
}

@media (min-width: 768px) {
    .index-anli-mobile-menu-btn {
        display: none;
    }
}

/* 三横线图标 */
.index-anli-menu-icon {
    display: block;
    width: 18px;
    height: 18px;
    margin: 4px auto;
    position: relative;
}

.index-anli-menu-icon span {
    display: block;
    width: 100%;
    height: 2px;
    background: #333;
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

.index-anli-menu-icon span:nth-child(1) {
    top: 4px;
}

.index-anli-menu-icon span:nth-child(2) {
    top: 11px;
}

.index-anli-menu-icon span:nth-child(3) {
    top: 18px;
}

/* 激活状态的菜单图标 */
.index-anli-mobile-menu-btn.active .index-anli-menu-icon span:nth-child(1) {
    transform: rotate(45deg);
    top: 11px;
}

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

.index-anli-mobile-menu-btn.active .index-anli-menu-icon span:nth-child(3) {
    transform: rotate(-45deg);
    top: 11px;
}

/* 侧边栏导航 */
.index-anli-nav-tabs-sidebar {
    background: white;
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 99;
    min-width: 200px;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    font-family: Source Han Sans;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    padding-left: 5px;

}

@media (max-width: 768px) {
    .index-anli-nav-tabs-sidebar {
        margin-top: 4%;
    }
}

@media (min-width: 768px) {
    .index-anli-nav-tabs-sidebar {
        position: static;
        transform: none;
        box-shadow: none;
        height: auto;
        margin-top: 2%;
    }
}

/* 显示侧边栏 */
.index-anli-nav-tabs-sidebar.show {
    transform: translateX(0);
}

/* 遮罩层 */
.index-anli-mobile-mask {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 98;
    transition: opacity 0.3s ease;
    opacity: 0;
}

.index-anli-mobile-mask.show {
    display: block;
    opacity: 1;
}

/* 内容区域 */
.index-anli-nav-tab-content {
    flex: 1;

    padding: 5%;
    /* 为移动端菜单按钮留出空间 */
}

@media (min-width: 768px) {
    .index-anli-nav-tab-content {
        padding: 20px;
        padding-left: 80px;
    }
}

/* 导航项样式保持不变 */
.index-anli-nav-primary-item {
    display: block;
    width: 100%;
    padding: 0px 8px 0px 8px;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    color: #333;
    transition: all 0.3s ease;
    position: relative;
    text-decoration: none;
    font-size: 22px;
    font-weight: normal;
    line-height: normal;
}

@media (max-width: 768px) {
    .index-anli-nav-primary-item {
        font-size: 18px;
    }
}

.index-anli-nav-primary-item:after {

    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%) rotate(90deg);
    transition: transform 0.3s ease;
    font-size: 35px;
}

.index-anli-nav-primary-item.collapsed:after {
    transform: translateY(-50%) rotate(0deg);
}

.index-anli-nav-secondary-container {
    display: block;
    background: white;
}

.index-anli-nav-primary-item.collapsed+.index-anli-nav-secondary-container {
    display: none;
}

.index-anli-nav-secondary-item {
    display: block;
    /*width: fit-content;*/
    padding: 2px 8px 2px 8px;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    border-radius: 20px;
    color: #878787;
    transition: all 0.3s ease;
    position: relative;
    text-decoration: none;
    font-size: 18px;
    font-weight: normal;
    line-height: normal;
    margin-top: 6px;
    margin-bottom: 6px;
}

.index-anli-nav-primary-item:hover::before,
.index-anli-nav-primary-item.active::before {
    content: "";
    position: absolute;
    left: 20px;
    right: 25px;
    top: 50%;
    height: 100%;

    border-radius: 4px;
    transform: translateY(-50%);
    z-index: -1;
}



.index-anli-nav-secondary-item:hover::before,
.index-anli-nav-secondary-item.active::before {
    content: "";
    position: absolute;
    left: 30px;
    right: 20px;
    top: 50%;
    height: 100%;
    background: linear-gradient(110deg, #D9EBFF -54%, rgba(160, 206, 255, 0) 91%);
    border-radius: 4px;
    transform: translateY(-50%);
    z-index: -1;
}

.index-anli-nav-primary-item.active {
    background: none;
    color: #333;
    font-weight: bold;
}

.index-anli-nav-secondary-item.active {
    background: linear-gradient(110deg, #D9EBFF -54%, rgba(160, 206, 255, 0) 91%);
    color: #007bff;
}

.index-anli-nav-tab-panel {
    display: none;
    min-height: 750px;
}

@media(max-width:768px) {
    .index-anli-nav-tab-panel {
        min-height: 300px;
    }
}

.index-anli-nav-tab-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.index-anli-nav-tab-title {
    margin-bottom: 15px;
    color: #333;
}

.index-anli-nav-tab-text {
    color: #666;
    line-height: 1.6;
}

/* 底部指示点样式 */
.tab-indicators {
    position: absolute;
    bottom: 15px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 10px;
    z-index: 10;
}

@media(min-width:768px) {
    .tab-indicators {
        left: 25%;
    }


}

.tab-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ccc;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-indicator.active {
    background: #2b52ae;
    transform: scale(1.2);
}

/* 导航箭头 */
.tab-nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.tab-nav-arrow:hover {
    background: linear-gradient(45deg, #4a7be4, #1927ec);
    ;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.tab-nav-arrow.prev {
    left: 20%;
}

.tab-nav-arrow.next {
    right: -2%;
}


.tab-nav-arrow {
    background: linear-gradient(45deg, #7fa3f0, #1927ec);
}

.tab-nav-arrow i {
    font-size: 1.2rem;
    color: #2b52ae;
}

.tab-nav-arrow-i-left {
    width: 20px;
    height: 20px;
    border-top: 3px solid white;
    border-left: 3px solid white;
    transform: rotate(-45deg);
    margin-left: 5px;
}

.tab-nav-arrow-i-right {
    width: 20px;
    height: 20px;
    border-right: 3px solid white;
    border-bottom: 3px solid white;
    transform: rotate(-45deg);
    margin-right: 5px;
}

@media (max-width: 768px) {

    .tab-nav-arrow {
        width: 30px;
        height: 30px;
    }

    .tab-nav-arrow.prev {
        left: 0%;
    }

    .tab-nav-arrow.next {
        right: 0%;
    }

    .tab-nav-arrow-i-left {
        width: 10px;
        height: 10px;
        border-top: 2px solid white;
        border-left: 2px solid white;
        transform: rotate(-45deg);
        margin-left: 2px;
    }

    .tab-nav-arrow-i-right {
        width: 10px;
        height: 10px;
        border-right: 2px solid white;
        border-bottom: 2px solid white;
        transform: rotate(-45deg);
        margin-right: 2px;
    }

    .tab-indicators {
        bottom: 0px;
    }
}

@media (max-width: 768px) {
    .header-top {
        position: relative;
        align-items: flex-start;
    }

    .logo {
        margin-right: 0;
        z-index: 1001;
    }

    /* 显示汉堡菜单按钮 */
    .hamburger-menu {
        display: flex;
        z-index: 1001;
        margin-right: 10px;
        width: 18px;
        height: 12.6px;
        margin-top: 5px;
    }

    /* 导航菜单样式 - 默认隐藏 */
    .nav-main {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: white;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 1000;
        padding: 80px 20px 20px;
        overflow-y: auto;
    }

    .nav-main.active {
        right: 0;
    }

    .nav-main ul {
        flex-direction: column;
    }

    .nav-main>ul>li {
        margin: 0;
        border-bottom: 1px solid #eee;
    }

    .nav-main>ul>li>a {
        padding: 15px;
        font-size: 18px;
    }

    /* 汉堡菜单动画 */
    .hamburger-menu.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger-menu.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* 遮罩层 */
    .overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
    }

    .overlay.active {
        opacity: 1;
        visibility: visible;
    }



}

@media (max-width: 768px) {
    .nav-main {
        width: 85%;
    }

    .logo {
        margin-top: 1px;
        margin-bottom: 1px;
        height: 23.1px;
        width: 160px;
    }

    .page-title h1 {
        font-size: 25px;
        margin-bottom: 10px;
    }
}

.breadcrumb {
    display: flex;
    justify-content: center;
    list-style: none;
    font-size: 20px;
    margin-left: 20px;
    font-weight: bold;
    line-height: normal;
}

.breadcrumb li {
    margin-left: 0px;
    text-decoration: none;
    /* 去除下划线 */
}

.breadcrumb li a {
    margin-left: 0px;
    text-decoration: none;
    /* 去除下划线 */
}




/* 居中选项卡容器 */
.tabs-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 选项卡标题组 */
.tabs-header {
    display: flex;
    justify-content: center;
    width: 100%;
    margin-bottom: -41px;
}

/* 选项卡样式 */
.tab {
    padding: 12px 24px;
    cursor: pointer;
    position: relative;
    font-weight: 500;
    color: var(--secondary-text);
    transition: all var(--transition-duration) ease;
    text-align: center;
    width: 180px;
    height: 40px;
    background: var(--inactive-bg);
    border: 1px solid var(--border-color);
    border-bottom: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab:hover {
    color: var(--primary-color);
    background: #d9e9ff;
}

.tab.active {
    background: var(--active-bg);
    color: white;
}

/* 内容区域 */
.tab-content {
    display: none;
    width: 100%;
    padding: 20px;
    animation: fadeIn 0.4s ease;

    background: white;
    padding-top: 42px;
}

.tab-content.active {
    display: block;
}

/* 公共样式 */
.tab-title {
    margin-bottom: 16px;
    font-size: 20px;
    font-weight: 500;
}

.tab-text {
    color: var(--secondary-text);
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .tab {

        font-size: 10px;
        width: 100px;
        height: 30px;

    }

    .tabs-header {
        margin-bottom: -31px;
    }

    .tab-content {
        padding: 42px 16px 16px 16px;
    }
}


.news-container {
    max-width: 900px;
    width: 100%;
    background: white;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0);
}

.news-header {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #eaeaea;
}

.news-title {
    font-size: 2.2rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

.news-subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
    font-weight: normal;
}

.news-cards-container {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 30px;
}

.news-card {
    display: flex;
    background: white;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;

    border-bottom: 1px solid black;
    padding: 1% 0% 3% 1%;
    text-decoration: none;
}

.news-card:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.news-card.selected {
    box-shadow: 0 0 0 3px #3498db, 0 5px 15px rgba(0, 0, 0, 0.1);
    border-color: #3498db;
}

.news-card-img {
    width: 288px;
    height: 252px;
    flex-shrink: 0;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.news-card-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-grow: 1;
    padding-left: 1%;
}

.news-card-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 12px;
    line-height: 1.3;
    text-align: center;
}

.news-card-desc {
    color: #5a6c7d;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.news-card-meta {
    text-align: right;
    color: #7f8c8d;
    font-size: 0.9rem;
}

.news-card-date {
    margin-right: 20px;
}

.news-card-category {
    color: #3498db;
    font-weight: 500;
}

.news-selection-info {
    padding: 20px;
    background: #f8f9fa;
    text-align: center;
    border: 1px solid #eaeaea;
    border-radius: 4px;
}

.news-selection-text {
    font-size: 1.1rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.news-selected-id {
    font-weight: bold;
    color: #3498db;
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .news-container {
        padding: 20px;
    }

    .news-card {
        flex-direction: column;
    }

    .news-card-img {
        width: 100%;
        height: 200px;
    }

    .news-title {
        font-size: 1.8rem;
    }

    .news-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .news-card-img {
        height: 180px;
    }

    .news-title {
        font-size: 1.6rem;
    }

    .news-card-title {
        font-size: 1.2rem;
    }

    .news-card-desc {
        font-size: 0.95rem;
    }

    .news-selection-text {
        font-size: 1rem;
    }

    .news-card-meta {
        font-size: 0.6rem;
    }
}

/* 卡片组件样式 - 所有类名都添加了about前缀 */
.about-container {
    width: 100%;
    padding: 20px 0;
}

.about-title {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 2.5rem;
}

.about-cards-container {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    margin-left: 15%;
    margin-right: 15%;
    margin-top: -45%;
}



.about-cards-wrapper {
    display: flex;
    transition: transform 0.5s ease;
    gap: 30px;
}

.about-card {
    flex: 0 0 calc(33.333% - 14px);
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    padding: 30px;
    display: flex;
    flex-direction: column;

    align-items: center;
    text-align: center;
    border-radius: 20px;
    min-height: 600px;
    background: rgba(0, 0, 0, 0.25);
    color: #000000;

}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}


.about-card-title {
    font-size: 50px;
    margin-bottom: 15px;
    margin-top: 10%;
    color: white;
    opacity: 1;
}

.about-card-text {
    color: white;
    line-height: 1.6;
    font-size: 14px;
    opacity: 1;
}

.about-indicators {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    gap: 10px;
}

.about-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #bdc3c7;
    cursor: pointer;
    transition: background 0.3s ease;
}

.about-indicator.active {
    background: #3498db;
}

.about-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: none;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 10;
    transition: background 0.3s ease;
}

.about-nav-btn:hover {
    background: white;
}

.about-prev {
    left: 10px;

}

.about-next {
    right: 10px;
}

/* 移动端样式 */
@media (max-width: 768px) {


    .about-card-title {
        font-size: 18px;
        color: white;
        opacity: 1;
        margin-top: 1%;
        margin-bottom: 1%;
    }

    .about-card-text {
        color: white;
        font-size: 8px;
        opacity: 1;
    }

    .about-card {
        flex: 0 0 100%;
        max-height: 100px;
        min-height: 92px;
        padding: 5px;
    }

    .about-nav-btn {
        display: flex;
    }

}



/* 平板端样式 */
@media (max-width: 1024px) and (min-width: 769px) {
    .about-card {
        flex: 0 0 calc(50% - 10px);
    }
}

/* PC端隐藏指示器 */
@media (min-width: 769px) {
    .about-indicators {
        display: none;
    }
}

/* IPC3000SMART */
.IPC3000SMART-card-container {
    display: grid;
    grid-template-columns: repeat(3, 270px);

    gap: 20px;
    justify-content: center;
}

.IPC3000SMART-card {
    width: 220px;
    border: 1px solid #ddd;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    border-bottom: 0px;
}

.IPC3000SMART-card-image {
    width: 200px;
    height: 191px;
    margin: 10px auto 0;
    background-color: white;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.IPC3000SMART-card-image img {
    width: 100%;
    height: 100%;

    object-fit: contain;
    /* 修改为contain保持比例 */
    object-position: center;
    /* 图片居中显示 */
}

.IPC3000SMART-card-link {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #136FD2;
    text-align: center;
    padding: 3px 15px;
    white-space: nowrap;
    border-radius: 10px;
}

.IPC3000SMART-card-link a {
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
}

.IPC3000SMART-card-link a:hover {
    text-decoration: underline;
}

.IPC3000SMART-card-title {
    width: 220px;
    height: 35px;
    background-color: #6596EC;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: bold;
    border-top: 1px solid #eee;
    margin-top: auto;

    line-height: 35px;
}

/* 响应式设计 - 移动设备 (小于768px) */
@media (max-width: 768px) {
    .content-section {
        padding: 1px;
    }

    .IPC3000SMART-card-container {
        grid-template-columns: 1fr 1fr;
        gap: 5px;
    }

    .nav-link {
        font-size: 12px;
    }

    .IPC3000SMART-card {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .IPC3000SMART-card-image {
        width: calc(100% - 20px);
        height: 90px;
    }

    .IPC3000SMART-card-title {
        width: 100%;
        font-size: 9px;
    }

    .IPC3000SMART-card-link {
        padding: 0px 5px;
        border-radius: 5px;
        line-height: 14px;
    }

    .IPC3000SMART-card-link a {
        font-size: 9px;
    }

    .IPC3000SMART-card-title {
        height: 20px;
        line-height: 10px;
        font-weight: normal;
    }
}