/* ===== 全局样式 ===== */
@import url('bootstrap.min.css');
@import url('all.min.css');
@import url('swiper-bundle.min.css');
@import url('variables.css');
@import url('common.css');


body {
  font-family: var(--heading-font);
  /*定义滚动条轨道*/
  /*定义滑块*/
}
body::-webkit-scrollbar {
  width: 12px;
  height: 5px;
}
body::-webkit-scrollbar-track {
  background-color: var(--bs-gray);
}
body::-webkit-scrollbar-thumb {
  border-radius: 10px;
  background: var(--bs-primary);
}
body:hover::-webkit-scrollbar-thumb {
  border-radius: 10px;
  background: var(--bs-primary);
}


/* ===== 动画类 ===== */
.fade-in {
    opacity: 0;
    transition: opacity 0.5s ease-in, transform 0.5s ease-out;
}

.slide-up {
    transform: translateY(20px);
}

/* ===== 顶部信息栏 ===== */
.welcome-text,
.nav-link-secondary,
.divider {
    font-weight: 400;
    font-size: 14px;
    color: #333333;
    line-height: 38px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    letter-spacing: 1px;
    margin: 0;
}

.nav-link-secondary:hover {
    color: var(--primary-color) !important;
}

/* ===== 公司信息区域 ===== */
.container.my-4 p {
    font-size: 14px;
   
    color: #333;
    letter-spacing: 0.5px;
}

.container.my-4 p:first-child {
 
   
font-weight: 800;
font-size: 24px;
color: #000000;
line-height: 33px;
text-align: left;
font-style: normal;
text-transform: none;
   
}

.container.my-4 p:nth-child(2) {
   
font-weight: 500;
font-size: 14px;
color: #999999;
line-height: 18px;
text-align: left;
font-style: normal;
text-transform: none;

}

.container.my-4 p:nth-child(3) {
    font-weight: 400;
    font-size: 16px;
    color: #333333;
    line-height: 22px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

/* ===== 移动端样式优化 ===== */
@media (max-width: 767.98px) {
    /* 全局移动端文字优化 */
    body {
        font-size: 14px !important;
        line-height: 1.6 !important;
        letter-spacing: 0.3px !important;
        padding-top: 60px !important; /* 为固定导航栏预留空间 */
    }
    
    /* 标题层级优化 */
    h1 {
        font-size: 20px !important;
        line-height: 1.4 !important;
        margin-bottom: 12px !important;
        font-weight: 700 !important;
    }
    
    h2 {
        font-size: 18px !important;
        line-height: 1.4 !important;
        margin-bottom: 0px !important;
        font-weight: 600 !important;
    }
    
    h3 {
        font-size: 16px !important;
        line-height: 1.4 !important;
        margin-bottom: 8px !important;
        font-weight: 600 !important;
    }
    
    /* 段落文字优化 */
    p {
        font-size: 14px !important;
        line-height: 1.6 !important;
        margin-bottom: 12px !important;
        letter-spacing: 0.3px !important;
    }
    
    /* 容器内边距优化 */
    .container {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    
    /* 区块间距优化 */
    section {
        padding: 10px 0 !important;
    }
    
    /* 公司信息区域移动端样式 */
    .container.my-4 {
        margin: 0px auto !important;
        padding: 15px !important;
    }
    
    .container.my-4 .col-12.col-md-10 p:nth-child(1) {
        font-size: 16px !important;
        text-align: center !important;
        line-height: 1.5 !important;
        margin-bottom: 10px !important;
    }
    
    .container.my-4 .col-12.col-md-10 p:nth-child(2) {
        font-size: 14px !important;
        text-align: center !important;
        line-height: 1.4 !important;
        margin-bottom: 8px !important;
    }
    
    .container.my-4 .col-12.col-md-10 p:nth-child(3) {
        font-size: 14px !important;
        text-align: center !important;
        line-height: 1.5 !important;
        margin-bottom: 0 !important;
    }
    
    /* 轮播图移动端样式 */
    .swiper-slide-content {
        padding: 20px 15px !important;
    }
    
    .swiper-slide-content h2 {
        font-size: 18px !important;
        line-height: 1.3 !important;
        margin-bottom: 10px !important;
        font-weight: 700 !important;
    }
    
    .swiper-slide-content p {
        font-size: 12px !important;
        line-height: 1.4 !important;
        margin-bottom: 0 !important;
    }
    
    /* 导航栏移动端优化 */
    .navbar-nav .nav-link {
        font-size: 16px !important;
        line-height: 1.4 !important;
        padding: 8px 12px !important;
        letter-spacing: 1px !important;
    }
    
    /* 公司概况标题移动端优化 */
    .company-overview-title h2 {
        font-size: 20px !important;
        line-height: 1.3 !important;
        margin-bottom: 0px !important;
        text-align: left !important;
    }
    
    .company-overview-title .subtitle {
        font-size: 16px !important;
        line-height: 22px !important;
        text-align: left !important;
        margin-bottom: 15px !important;
    }
    
    /* 企业文化标题移动端优化 - 与company-overview-title保持一致 */
    .culture-title h2 {
        font-size: 24px !important;
        line-height: 32px !important;
        text-align: center !important;
    }
    
    .culture-title .subtitle {
        font-size: 16px !important;
        line-height: 22px !important;
        text-align: center !important;
        margin-bottom: 15px !important;
    }
    
    /* 荣誉资质标题移动端优化 - 与culture-title保持一致 */
    .honors-title h2 {
        font-size: 24px !important;
        line-height: 32px !important;
        text-align: center;
    }
    
    .honors-title .subtitle {
        font-size: 16px !important;
        line-height: 22px !important;
        text-align: center !important;
        
    }
    
    /* 专利展示标题移动端优化 - 与company-overview-title保持一致 */
    .patents-title h2 {
        font-size: 24px !important;
        line-height: 32px !important;
    }
    
    .patents-title .subtitle {
        font-size: 16px !important;
        line-height: 22px !important;
        text-align: left !important;
        margin-bottom: 15px !important;
    }
    
    /* 荣誉资质网格移动端优化 - 一排两个 */
    .honors-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
        padding: 0 10px !important;
    }
    
    .honor-certificate {
        max-width: 100% !important;
        height: 120px !important;
    }
    
    .honor-label {
        font-size: 12px !important;
        line-height: 16px !important;
    }
    
    /* 产品展示移动端优化 */
    .product-display-content {
        padding: 20px 0 !important;
    }
    
    .product-block {
        margin-bottom: 20px !important;
    }
    
    .product-label .label-text {
        font-size: 14px !important;
        line-height: 1.4 !important;
        padding: 8px 12px !important;
    }
    
    /* 按钮移动端优化 */
    .btn, .overlay-btn, .view-more-btn {
        font-size: 14px !important;
        line-height: 1.4 !important;
        padding: 10px 20px !important;
        letter-spacing: 0.5px !important;
    }
    
    /* 表格和列表移动端优化 */
    .table {
        font-size: 13px !important;
    }
    
    .list-group-item {
        font-size: 14px !important;
        line-height: 1.5 !important;
        padding: 10px 15px !important;
    }
    
    /* ===== 移动端布局和间距优化 ===== */
    
    /* 行间距优化 */
    .row {
        margin-left: -10px !important;
        margin-right: -10px !important;
    }
    
    .col-12, .col-md-2, .col-md-10, .col-md-8, .col-lg-4, .col-lg-6 {
        padding-left: 10px !important;
        padding-right: 10px !important;
        margin-bottom: 15px !important;
    }
    
    /* 顶部信息栏移动端隐藏优化 */
    header.bg-white {
        display: none !important;
    }
    
    /* Logo区域移动端优化 */
    .container.my-4 .col-12.col-md-2 {
        text-align: center !important;
        margin-bottom: 20px !important;
    }
    
    .container.my-4 .col-12.col-md-2 img {
        width: 150px !important;
        max-width: 100% !important;
    }
    
    /* 轮播图区域优化 */
    .banner-section {
        position: relative !important;
        margin-top: 0 !important; /* 移除顶部边距 */
    }
    
    /* 隐藏banner区域内的导航栏 */
    .banner-section .navbar {
        display: none !important;
    }
    
    /* banner区域需要从顶部开始显示 */
    .banner-section .swiper {
        margin-top: 0 !important;
    }
    
    .swiper-button-next, .swiper-button-prev {
        width: 35px !important;
        height: 35px !important;
    }
    
    .swiper-button-next:after, .swiper-button-prev:after {
        font-size: 14px !important;
    }
    
    /* 产品展示网格优化 */
    .product-display-content {
        display: flex !important;
        flex-direction: column !important;
        gap: 15px !important;
    }
    
    .product-showcase-grid {
        display: flex !important;
        flex-direction: column !important;
        gap: 15px !important;
    }
    
    .product-showcase-item {
        margin-bottom: 15px !important;
    }
    
    
    .application-item {
        margin-bottom: 10px !important;
    }
    
    /* 案例展示网格优化 */
    .case-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
        padding: 15px 0 !important;
    }
    
    .case-item {
        margin-bottom: 10px !important;
    }
    
    /* 主营业务移动端优化 */
    .business-item {
        flex-direction: column !important;
        margin-bottom: 25px !important;
        padding: 15px !important;
        border-radius: 8px !important;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1) !important;
    }
    
    .business-image {
        margin-bottom: 15px !important;
    }
    
    .business-content h3 {
        font-size: 16px !important;
        margin-bottom: 10px !important;
        text-align: center !important;
    }
    
    .business-text {
        font-size: 13px !important;
        line-height: 1.5 !important;
        margin-bottom: 15px !important;
    }
    
    /* 联系信息移动端优化 */
    .contact-info {
        padding: 20px 15px !important;
    }
    
    .contact-item {
        margin-bottom: 20px !important;
        text-align: center !important;
    }
    
    /* 表单移动端优化 */
    .form-control {
        font-size: 14px !important;
        padding: 10px 12px !important;
        margin-bottom: 15px !important;
    }
    
    .form-label {
        font-size: 14px !important;
        margin-bottom: 5px !important;
        font-weight: 500 !important;
    }
    
    /* 页脚移动端优化 */
   
    
    .footer-top {
        padding: 15px 0 !important;
    }
    
    /* 底部导航横向排列 */
    .footer-nav .nav {
        flex-direction: row !important;
        flex-wrap: wrap !important;
        justify-content: center !important;
        gap: 5px !important;
    }
    
    .footer-nav .nav-item {
        flex: 0 0 auto !important;
    }
    
    .footer-nav .nav-link {
        font-size: 13px !important;
        padding: 8px 10px !important;
        white-space: nowrap !important;
        color: #ffffff !important;
    }
    
    .footer-bottom {
        padding: 10px 0 !important;
    }
    
    .copyright {
        font-size: 12px !important;
        line-height: 1.4 !important;
    }
    
    /* 特殊小屏幕优化 */
    @media (max-width: 480px) {
        .container {
            padding-left: 10px !important;
            padding-right: 10px !important;
        }
        
        .swiper-slide-content h2 {
            font-size: 16px !important;
        }
        
        .swiper-slide-content p {
            font-size: 11px !important;
        }
        
        
        .case-grid {
            grid-template-columns: 1fr !important;
        }
        
        h1 {
            font-size: 18px !important;
        }
        
        h2 {
            font-size: 16px !important;
        }
        
        .company-overview-title h2 {
            font-size: 24px !important;
            line-height: 32px !important;
          
        }
        
        /* 发展历程小屏幕优化 */
        .development-history-section {
            padding: 30px 0 !important;
        }
        
        .history-header {
            margin-bottom: 20px !important;
            padding: 0 10px !important;
        }
        
        .history-header h2 {
            font-size: 20px !important;
            line-height: 28px !important;
        }
        
        .history-header .subtitle {
            font-size: 14px !important;
            line-height: 20px !important;
        }
        
        .timeline-container {
            padding: 15px 10px !important;
        }
        
        .timeline-wrapper {
            padding: 20px 0 !important;
        }
        
        .timeline-events {
            display: flex !important;
            flex-direction: column !important;
            gap: 15px !important;
            padding: 15px 10px !important;
            min-height: auto !important;
            width: 100% !important;
            position: relative !important;
        }
        
        /* 小屏隐藏时间轴线条 */
        .timeline-events::before {
            display: none !important;
        }
        
        .timeline-event {
            display: block !important;
            position: relative !important;
            width: 100% !important;
            min-width: auto !important;
            margin-bottom: 0 !important;
            padding-left: 0px !important;
            padding-bottom: 10px !important;
        }
        
        .year-marker {
            position: absolute !important;
            left: -60px !important;
            top: 3px !important;
            font-size: 14px !important;
            line-height: 18px !important;
            min-width: 55px !important;
            white-space: nowrap !important;
            text-align: center !important;
            background: #2E357C !important;
            color: #FFFFFF !important;
            padding: 5px 6px !important;
            border-radius: 15px !important;
            z-index: 3 !important;
            font-weight: 700 !important;
            box-shadow: 0 2px 6px rgba(46, 53, 124, 0.3) !important;
        }
        
        .event-card {
            width: 100% !important;
            max-width: calc(100vw - 75px) !important;
            min-width: auto !important;
            padding: 15px 12px !important;
            font-size: 12px !important;
            min-height: auto !important;
            height: auto !important;
            overflow: visible !important;
            word-break: break-word !important;
            position: relative !important;
            margin-left: 0 !important;
            background: #FFFFFF !important;
            border-radius: 10px !important;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1) !important;
            border-left: 3px solid #2E357C !important;
        }
        
        .node-circle {
            display: none !important;
        }
        
        .event-title {
            font-size: 11px !important;
            line-height: 16px !important;
            margin-bottom: 6px !important;
        }
        
        .event-description {
            font-size: 10px !important;
            line-height: 14px !important;
            word-wrap: break-word !important;
            white-space: normal !important;
            overflow: visible !important;
        }
        
        .event-date {
            font-size: 9px !important;
            line-height: 14px !important;
            margin-bottom: 6px !important;
        }
        
        .node-circle {
            width: 6px !important;
            height: 6px !important;
        }
        
        /* 小屏竖版布局：移除上下交替，统一为左侧布局 */
        .timeline-event.above-line .event-card,
        .timeline-event.below-line .event-card {
            position: relative !important;
            margin: 0 !important;
            max-width: none !important;
            min-height: auto !important;
        }
        
        /* 小屏隐藏时间节点容器 */
        .timeline-node {
            display: none !important;
        }
    }
    
    /* ===== 移动端导航和交互优化 ===== */
    
    /* 移动端专用吸顶导航栏 */
    .mobile-sticky-nav {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 1050 !important;
        padding: 8px 0 !important;
        background: #1e50a2 !important;
        backdrop-filter: blur(10px) !important;
        -webkit-backdrop-filter: blur(10px) !important;
        box-shadow: 0 2px 10px rgba(30, 80, 162, 0.4) !important;
        transition: all 0.3s ease !important;
        border-bottom: 1px solid rgba(255,255,255,0.2) !important;
    }
    
    /* 移动端导航品牌Logo */
    .mobile-sticky-nav .navbar-brand {
        padding: 0 !important;
    }
    
    .mobile-sticky-nav .navbar-brand img {
        height: 30px !important;
        width: auto !important;
        filter: brightness(0) invert(1) !important; /* 白色Logo */
    }
    
    /* 移动端导航切换按钮 */
    .mobile-sticky-nav .navbar-toggler {
        padding: 4px 8px !important;
        font-size: 16px !important;
        border: 1px solid rgba(255,255,255,0.3) !important;
        border-radius: 4px !important;
    }
    
    .mobile-sticky-nav .navbar-toggler:focus {
        box-shadow: 0 0 0 0.2rem rgba(255,255,255,0.25) !important;
    }
    
    /* 移动端导航折叠菜单 */
    .mobile-sticky-nav .navbar-collapse {
        background: #1e50a2 !important;
        margin-top: 10px !important;
        border-radius: 8px !important;
        padding: 15px !important;
        border: 1px solid rgba(255,255,255,0.2) !important;
        box-shadow: 0 4px 15px rgba(30, 80, 162, 0.3) !important;
    }
    
    /* 移动端导航菜单项 */
    .mobile-sticky-nav .navbar-nav {
        flex-direction: column !important;
        gap: 0 !important;
    }
    
    .mobile-sticky-nav .navbar-nav .nav-item {
        width: 100% !important;
        margin: 0 !important;
        border-bottom: 1px solid rgba(255,255,255,0.1) !important;
    }
    
    .mobile-sticky-nav .navbar-nav .nav-item:last-child {
        border-bottom: none !important;
    }
    
    .mobile-sticky-nav .navbar-nav .nav-link {
        width: 100% !important;
        padding: 12px 15px !important;
        font-size: 16px !important;
        color: #ffffff !important;
        text-align: left !important;
        border-radius: 4px !important;
        transition: all 0.3s ease !important;
        text-decoration: none !important;
    }
    
    /* 移动端下拉菜单导航链接样式修正 */
    .mobile-sticky-nav .nav-item.dropdown .nav-link {
        justify-content: center !important;
    }
    
    .mobile-sticky-nav .navbar-nav .nav-link:hover,
    .mobile-sticky-nav .navbar-nav .nav-link.active {
        background: rgba(255,255,255,0.1) !important;
        color: #ffffff !important;
        transform: translateX(5px) !important;
    }
    
    /* 移动端下拉菜单优化 */
    .mobile-sticky-nav .dropdown-menu {
        position: static !important;
        float: none !important;
        background: rgba(255,255,255,0.15) !important;
        border: none !important;
        box-shadow: none !important;
        margin: 5px 0 0 15px !important;
        border-radius: 4px !important;
        border: 1px solid rgba(255,255,255,0.1) !important;
    }
    
    .mobile-sticky-nav .dropdown-item {
        font-size: 14px !important;
        padding: 8px 12px !important;
        color: rgba(255,255,255,0.8) !important;
        text-decoration: none !important;
    }
    
    .mobile-sticky-nav .dropdown-item:hover,
    .mobile-sticky-nav .dropdown-item:focus {
        background: rgba(255,255,255,0.1) !important;
        color: #ffffff !important;
    }
    
    /* 移动端触摸优化 */
    .btn, .overlay-btn, .view-more-btn {
        min-height: 44px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        touch-action: manipulation !important;
    }
    
    .mobile-sticky-nav .nav-link, 
    .mobile-sticky-nav .dropdown-item {
        min-height: 44px !important;
        display: flex !important;
        align-items: center !important;
        touch-action: manipulation !important;
    }
    
    /* 确保移动端导航在所有页面都固定在顶部 */
    @media (max-width: 767.98px) {
        /* 页面内容向下偏移，为固定导航栏留出空间 */
        .banner-section {
            margin-top: 0 !important;
        }
        
        /* 确保公司信息区域也有适当的顶部间距 */
        .container.my-4 {
            margin-top: 20px !important;
        }
    }
    
    /* 图片懒加载和触摸优化 */
    img {
        touch-action: manipulation !important;
        user-select: none !important;
    }
    
    /* 轮播图触摸优化 */
    .swiper {
        touch-action: pan-y !important;
    }
    
    .swiper-slide {
        touch-action: manipulation !important;
    }
    
    /* 产品展示悬停效果移动端禁用 */
    .product-image-container:hover .image-overlay {
        opacity: 0 !important;
        visibility: hidden !important;
    }
    
    /* 移动端显示产品信息的替代方案 */
    .product-image-container {
        position: relative !important;
    }
    
    .product-mobile-info {
        position: absolute !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        background: linear-gradient(transparent, rgba(0,0,0,0.8)) !important;
        color: white !important;
        padding: 15px 10px 10px !important;
        font-size: 12px !important;
        line-height: 1.3 !important;
    }
    
    /* 表单输入优化 */
    .form-control:focus {
        border-color: var(--primary-color) !important;
        box-shadow: 0 0 0 0.2rem rgba(30, 80, 162, 0.25) !important;
    }
    
    /* 滚动优化 */
    body {
        -webkit-overflow-scrolling: touch !important;
        scroll-behavior: smooth !important;
    }
    
    /* 防止双击缩放 */
    * {
        touch-action: manipulation !important;
    }
    
    /* 选择文本优化 */
    .navbar, .swiper, .product-image-container {
        -webkit-user-select: none !important;
        -moz-user-select: none !important;
        -ms-user-select: none !important;
        user-select: none !important;
    }
    
    /* 最终移动端性能优化 */
    
    /* GPU加速优化 */
    .swiper, .navbar-collapse, .product-image-container {
        -webkit-transform: translateZ(0) !important;
        transform: translateZ(0) !important;
        -webkit-backface-visibility: hidden !important;
        backface-visibility: hidden !important;
    }
    
    /* 字体渲染优化 */
    body, p, h1, h2, h3, .nav-link {
        -webkit-font-smoothing: antialiased !important;
        -moz-osx-font-smoothing: grayscale !important;
        text-rendering: optimizeLegibility !important;
    }
    
    /* 内容可访问性优化 */
    .btn:focus, .nav-link:focus, .form-control:focus {
        outline: 2px solid var(--primary-color) !important;
        outline-offset: 2px !important;
    }
    
    /* 加载状态优化 */
    img {
        opacity: 1 !important;
        transition: opacity 0.3s ease !important;
    }
    
    img[loading="lazy"] {
        opacity: 0 !important;
    }
    
    img[loading="lazy"].loaded {
        opacity: 1 !important;
    }
    
    /* 移动端内容优先级 */
    .d-none.d-md-block {
        display: none !important;
    }
    
    /* 关键内容优化 */
    .container.my-4 {
        will-change: transform !important;
    }
    
    .swiper-slide-content {
        will-change: opacity !important;
    }
    
    /* 公司徽章移动端字体和图标优化 */
    .company-badge {
        font-size: 14px !important;
        padding: 6px 12px !important;
        gap: 6px !important;
        min-width: 120px !important;
        white-space: nowrap !important;
        text-align: center !important;
    }
    
    .company-badge::before {
        width: 12px !important;
        height: 12px !important;
        background: radial-gradient(circle at center, #3B4284 0, #3B4284 3px, transparent 3px) !important;
    }
    
    .company-overview-badges {
        gap: 12px !important;
    }
    
    /* 关于我们标题中的英文副标题移动端调整 */
    .company-overview-text h3 span {
        font-size: 12px !important;
    }
    
    /* 公司概况标题移动端间距优化 */
    .company-overview-header {
        margin-bottom: 10px !important;
    }
    
    /* view-more按钮移动端字体优化 */
    .view-more {
        font-size: 14px !important;
    }
    
    /* 公司统计数据移动端布局优化 */
    .company-stats {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
        margin-top: 20px !important;
    }
    
    .company-stats .stat-item {
        text-align: center !important;
        margin-bottom: 0 !important;
    }
    
    /* 统计数字移动端样式优化 */
    .stat-number {
        line-height: unset !important;
    }
    
    /* 产品展示内容移动端间距优化 */
    .product-display-content {
        margin-top: 10px !important;
    }
    
    /* 产品解决方案移动端背景优化 */
    .product-solution-section {
        background-image: url('../images/yddjjfabj.jpg') !important;
        background-repeat: no-repeat !important;
        background-position: center center !important;
        background-size: cover !important;
        background-attachment: scroll !important;
        min-height: 300px !important;
    }
    
    /* 增加特异性确保移动端背景生效 */
    body .product-solution-section {
        background-image: url('../images/yddjjfabj.jpg') !important;
        background-repeat: no-repeat !important;
        background-position: center center !important;
        background-size: 100% 100% !important;
    }
    
    /* 解决方案内容移动端间距优化 */
    .solution-content {
        margin-top: 200px !important;
    }
    
    /* banner标题移动端优化 */
    .nybanner {
        font-size: 18px !important;
        line-height: 60px !important;
    }
    
    /* banner线条移动端优化 */
    .nyborder {
        height: 1px !important;
        border-width: 1px !important;
    }
    
    /* 发展历程移动端优化 */
    .development-history-section {
        padding: 40px 0 !important;
        overflow: hidden !important;
    }
    
    .history-header {
        margin-bottom: 30px !important;
        padding: 0 15px !important;
    }
    
    .history-header h2 {
        font-size: 24px !important;
        line-height: 32px !important;
    }
    
    .history-header .subtitle {
        font-size: 16px !important;
        line-height: 22px !important;
    }
    
    .timeline-container {
        padding: 20px 15px !important;
        overflow-x: visible !important;
        overflow-y: visible !important;
        -webkit-overflow-scrolling: touch !important;
        position: relative !important;
        min-height: auto !important;
    }
    
    /* 移除水平滚动提示 - 改为竖版布局 */
    
    .timeline-wrapper {
        padding: 30px 0 !important;
    }
    
    .timeline-events {
        display: flex !important;
        flex-direction: column !important;
        gap: 20px !important;
        padding: 20px 15px !important;
        min-height: auto !important;
        width: 100% !important;
        position: relative !important;
    }
    
    .timeline-event {
        display: block !important;
        position: relative !important;
        width: 100% !important;
        min-width: auto !important;
        margin-bottom: 0 !important;
       
    }
    
    .year-marker {
        position: absolute !important;
        left: -70px !important;
        top: 5px !important;
        font-size: 16px !important;
        line-height: 20px !important;
        min-width: 60px !important;
        white-space: nowrap !important;
        text-align: center !important;
        background: #2E357C !important;
        color: #FFFFFF !important;
        padding: 6px 8px !important;
        border-radius: 20px !important;
        z-index: 3 !important;
        font-weight: 700 !important;
        box-shadow: 0 3px 8px rgba(46, 53, 124, 0.3) !important;
    }
    
    .event-card {
        width: 100% !important;
        max-width: calc(100vw - 90px) !important;
        min-width: auto !important;
        padding: 18px 16px !important;
        font-size: 13px !important;
        max-height: none !important;
        min-height: auto !important;
        height: auto !important;
        overflow: visible !important;
        word-break: break-word !important;
        position: relative !important;
        margin-left: 0 !important;
        background: #FFFFFF !important;
        border-radius: 12px !important;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1) !important;
        border-left: 4px solid #2E357C !important;
    }
    
    .event-title {
        font-size: 13px !important;
        line-height: 18px !important;
        margin-bottom: 8px !important;
    }
    
    .event-description {
        font-size: 11px !important;
        line-height: 16px !important;
        max-height: none !important;
        overflow: visible !important;
        word-wrap: break-word !important;
        white-space: normal !important;
        text-overflow: unset !important;
        display: block !important;
    }
    
    .event-date {
        font-size: 11px !important;
        line-height: 16px !important;
        margin-bottom: 8px !important;
    }
    
    .nav-arrow {
        width: 28px !important;
        height: 28px !important;
        display: none !important;
    }
    
    /* 移动端隐藏时间轴线条 */
    .timeline-events::before {
        display: none !important;
    }
    
    .node-circle {
        display: none !important;
    }
    
    /* 竖版布局：移除上下交替，统一为左侧布局 */
    .timeline-event.above-line .event-card,
    .timeline-event.below-line .event-card {
        position: relative !important;
        margin: 0 !important;
        max-width: none !important;
        min-height: auto !important;
    }
    
    /* 移动端隐藏时间节点容器 */
    .timeline-node {
        display: none !important;
    }
}

/* ===== 联系我们标题区域样式 ===== */
.company-overview-title {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: wrap !important;
}

.title-left {
    flex: 1 !important;
}




/* 移动端联系标题优化 */
@media (max-width: 767.98px) {
    .company-overview-title {
        display: initial !important;
        flex-direction: unset !important;
        text-align: left !important;
        gap: unset !important;
    }
    
    .company-overview-title h2 {
        text-align: left !important;
    }
    
    /* 确保所有页面的标题都左对齐 */
    body .contact-section .company-overview-title h2,
    body .about-section .company-overview-title h2,
    body section .company-overview-title h2,
    body .company-overview-title h2 {
        text-align: left !important;
    }
    
    .title-right {
        margin-left: 0 !important;
        margin-top: 15px !important;
    }
    
    .title-qr-code {
        width: 200px !important;
        height: 200px !important;
    }
}

/* ===== 联系信息水平排版样式（高优先级） ===== */
section.contact-section .contact-content .contact-item .contact-info {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    margin-bottom: 8px !important;
    gap: 8px !important;
    padding: 5px 0 !important;
}

section.contact-section .contact-content .contact-item .contact-info .contact-icon-img {
    width: 20px !important;
    height: 20px !important;
    flex-shrink: 0 !important;
    object-fit: contain !important;
    margin-right: 0 !important;
}

section.contact-section .contact-content .contact-item .contact-info span {
    flex: 1 !important;
    line-height: 1.4 !important;
    margin: 0 !important;
}

/* 更强的特异性覆盖 */
#contact .contact-content .contact-info {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    margin-bottom: 8px !important;
    gap: 8px !important;
}

#contact .contact-content .contact-info .contact-icon-img {
    width: 20px !important;
    height: 20px !important;
    flex-shrink: 0 !important;
    object-fit: contain !important;
}

/* 最高优先级样式 */
body section.contact-section#contact .contact-content .contact-item .contact-info {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 15px !important;
}

/* 强制覆盖第3116行的样式 */
.contact-section .contact-info {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    font-family: inherit !important;
    font-weight: normal !important;
    font-size: inherit !important;
    gap: 8px !important;
    margin-bottom: 8px !important;
}

/* ===== 分部信息保持原样式 ===== */
.branch-address {
    font-size: 12px;
    line-height: 14px;
}

.branch-phone {
    font-size: inherit;
}

/* ===== 联系我们页面移动端优化 ===== */
@media (max-width: 767.98px) {
    /* 联系我们标题区域移动端优化 */
    .contact-section .company-overview-title {
        margin-bottom: 20px !important;
    }
    
    .contact-section .company-overview-title h2 {
        font-size: 24px !important;
    }
    
    .contact-section .company-overview-title .subtitle {
        font-size: 14px !important;
    }
    
    .contact-section .title-qr-code {
        width: 80px !important;
        height: 80px !important;
    }
    
    /* 联系内容区域移动端优化 */
    .contact-content {
        padding: 0 10px !important;
    }
    
    .contact-content .row.mb-4 {
        margin-bottom: 20px !important;
    }
    
    /* 联系项目移动端优化 */
    .contact-item {
        margin-bottom: 20px !important;
        padding: 15px !important;
 
    }
    
    .contact-title {
        font-size: 18px !important;
        font-weight: 600 !important;
        margin-bottom: 12px !important;
        text-align: center !important;
        color: #1e50a2 !important;
    }
    
    /* 联系信息水平排版移动端优化 */
    .contact-content .contact-info {
        display: flex !important;
        align-items: center !important;
        margin-bottom: 10px !important;
        padding: 5px 0 !important;
        gap: 10px !important;
    }
    
    .contact-content .contact-info .contact-icon-img {
        width: 20px !important;
        height: 20px !important;
        flex-shrink: 0 !important;
        object-fit: contain !important;
    }
    
    .contact-content .contact-info span {
        flex: 1 !important;
        font-size: 16px !important;
        line-height: 1.4 !important;
    }
    
    /* 分部地址特殊样式 */
    .contact-content .contact-info span[style*="font-size: 12px"] {
        font-size: 14px !important;
        line-height: 1.3 !important;
    }
    
    /* 友智分部移动端布局优化 */
    .contact-item .row .col-lg-6 {
        margin-bottom: 15px !important;
        padding: 0 5px !important;
    }
    
    .contact-item .row .col-lg-6:last-child {
        margin-bottom: 0 !important;
    }
    
    /* 地图区域移动端优化 */
    .contact-map {
        margin-top: 20px !important;
    }
    
    .contact-map #allmap {
        height: 300px !important;
        border-radius: 8px !important;
    }
    
    /* 浮动联系信息框移动端隐藏 */
    .floating-contact-info {
        display: none !important;
    }
}

/* 超小屏幕优化 (480px以下) */
@media (max-width: 480px) {
    .contact-section .title-qr-code {
        width: 200px !important;
        height: 200px !important;
    }
    
    .contact-content {
        padding: 0 5px !important;
    }
    
    .contact-item {
        padding: 12px !important;
    }
    
    .contact-title {
        font-size: 16px !important;
    }
    
    .contact-content .contact-info span {
        font-size: 15px !important;
    }
    
    .contact-content .contact-info span[style*="font-size: 12px"] {
        font-size: 13px !important;
    }
    
    .contact-map #allmap {
        height: 250px !important;
    }
    
    /* 超小屏幕底部导航优化 */
    .footer-nav .nav-link {
        font-size: 12px !important;
        padding: 6px 8px !important;
    }
}

/* 移动端联系信息优化 */
@media (max-width: 767.98px) {
    section.contact-section .contact-content .contact-item .contact-info,
    #contact .contact-content .contact-info {
        flex-direction: row !important;
        text-align: left !important;
        justify-content: flex-start !important;
        display: flex !important;
        align-items: center !important;
    }
}

.vertical-divider {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, #ddd, transparent);
}

/* ===== 导航栏样式 ===== */
.navbar-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 0;
}

.navbar-nav .nav-item {
    flex: 0 1 auto;
    text-align: center;
    margin: 0 10px;
    position: relative;
}

.navbar-nav .nav-link {
    width: 100%;
    height: 28px;
    font-weight: 400;
    font-size: 20px;
    color: #C1C1C1;
    line-height: 28px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    letter-spacing: 2px;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.navbar-nav .nav-link.active {
    color: #ffffff !important;
}

/* ===== 公司概况区域 ===== */
.company-overview-section {
    padding: 80px 0;
    background: #ffffff;
}

.company-overview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 60px;
}

.company-overview-title {
    flex-direction: row;
    align-items: center;
    gap: 15px;
    
}



.company-overview-title h2 {
    font-family: PingFang SC, PingFang SC;
    font-weight: 800;
    font-size: 40px;
    color: #2E357C;
    line-height: 56px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin: 0;
    display: block;
}

.company-overview-title .subtitle {
    font-family: PingFang SC, PingFang SC;
    font-weight: 300;
    font-size: 30px;
    color: #999999;
    line-height: 42px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin: 0;
    padding: 0;
    position: relative;
}



.company-overview-badges {
    display: flex;
    gap: 20px;
}

.company-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 4px;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 25px;
    color: #3B4284;
    line-height: 40px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

.company-badge::before {
    content: "";
    width: 20px;
    height: 20px;
    border: 1px solid #3B4284;
    border-radius: 50%;
    margin-right: 8px;
    display: inline-block;
    position: relative;
    background: radial-gradient(circle at center, #3B4284 0, #3B4284 5px, transparent 5px);
}

.company-overview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.company-overview-image {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.company-overview-image img {
    width: auto;
    height: auto;
    max-width: 100%;
    display: block;
    transition: transform 0.3s ease;
}

.company-overview-image:hover img {
    transform: scale(1.05);
}

.company-overview-text {
    padding: 0 20px;
}

.company-overview-text h3 {
    font-family: OPPOSans, OPPOSans;
    font-weight: bold;
    font-size: 40px;
    color: #333333;
    line-height: 56px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin: 0 0 15px 0;
}

.company-overview-text h3 span {
    font-family: PingFang SC, PingFang SC;
    font-weight: 300;
    font-size: 30px;
    color: #999999;
    line-height: 42px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-left: 15px;
    position: relative;
}

.company-overview-text h3 span::before {
    content: "—";
    color: #999999;
    margin-right: 15px;
    font-weight: 300;
}

.company-overview-text .text-subtitle {
    font-size: 1rem;
    color: #999999;
    font-weight: 400;
    margin: 0 0 30px 0;
    position: relative;
}

.company-overview-text .text-subtitle::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: #1e50a2;
}

.company-overview-text .company-description {
    font-size: 1rem;
    line-height: 1.8;
    color: #333333;
    margin-bottom: 25px;
    text-align: justify;
}

.company-overview-text .company-description p {
    text-indent: 2em;
    margin-bottom: 0;
    color: #999999;
}

.company-overview-text .company-description br + * {
    text-indent: 2em;
}

.company-overview-text .view-more {
    display: inline-block;
    color: #2E357C;
    text-decoration: none;
    font-weight: bold;
    font-size: 20px;
    transition: color 0.3s ease;
}

.company-overview-text .view-more:hover {
    color: #0d3a7a;
    text-decoration: underline;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 60px;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 75px;
    color: #2E357C;
    line-height: 105px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin-bottom: 10px;
}

.stat-label {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 20px;
    color: #333333;
    line-height: 28px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .company-overview-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .company-overview-header {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
    
    .company-overview-badges {
        gap: 15px;
    }
    
    .company-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .company-overview-section {
        padding: 60px 0;
    }
    
    .company-overview-title h2 {
        font-size: 2rem;
    }
    
    .company-overview-text h3 {
        font-size: 1.5rem;
    }
    
    .company-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* ===== 横幅区域 ===== */
.banner-section {
    position: relative;
    width: 100%;
    overflow: hidden;
}

/* ===== 导航栏覆盖样式 ===== */
/* 主营业务导航项样式 - 文字和箭头平行排列 */
.nav-item.dropdown{
    display: flex;
    gap: 0px;
}

.daohangxialaitubiao{
    font-weight: 400;
    font-size: 20px;
    color: #C1C1C1;
    line-height: 28px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    letter-spacing: 2px;
    transition: all 0.3s ease;
}
.nav-item.dropdown .nav-link {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 5px;
    padding: 0;
}

.nav-item.dropdown .nav-link a {
    text-decoration: none;
    color: white;
    padding: 0.5rem 1rem;
    margin: 0;
}

.nav-item.dropdown .nav-link .dropdown-toggle {
    padding: 0.5rem 0.5rem;
    margin-left: 0;
    border: none;
    background: none;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    position: relative;
    top: 1px;
}

.nav-item.dropdown .nav-link .dropdown-toggle span {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid white;
    margin-left: 0;
}

.navbar-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    background: transparent;
    border: none;
    border-bottom: 2px solid #C1C1C1;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

/* ===== 导航栏吸顶样式 ===== */
.navbar-overlay.sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #3B4284;
    border-bottom: 2px solid #3B4284;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.5rem 0;
}

.navbar-overlay.sticky .navbar-nav .nav-link {
    color: #ffffff !important;
}

.navbar-overlay.sticky .navbar-nav .nav-link:hover,
.navbar-overlay.sticky .navbar-nav .nav-link.active {
    color: #ffffff !important;
    transform: translateY(-2px);
}

.navbar-overlay.sticky .dropdown-menu {
    background-color: rgba(59, 66, 132, 0.95);
    border: 1px solid #3B4284;
}

.navbar-overlay.sticky .dropdown-item {
    color: #ffffff !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar-overlay.sticky .dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff !important;
}

/* 吸顶时的过渡动画 */
.navbar-overlay {
    transition: all 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* 吸顶时的下拉菜单动画 */
.navbar-overlay.sticky .dropdown-menu {
    transition: all 0.3s ease;
    transform-origin: top center;
}

/* 确保吸顶时导航栏在所有元素之上 */
.navbar-overlay.sticky {
    z-index: 1000;
}

/* ===== 质量认证区域 ===== */
.certification-section {
    padding: 80px 0;
    background: #ffffff;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-family: PingFang SC, PingFang SC;
    font-weight: 800;
    font-size: 40px;
    color: #333333;
    line-height: 56px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin: 0 0 10px 0;
}

.section-header .subtitle {
    font-family: PingFang SC, PingFang SC;
    font-weight: 300;
    font-size: 30px;
    color: #999999;
    line-height: 42px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin: 0;
}

/* 质量认证区域内容 */
.certification-section .certification-swiper-container {
    margin-top: 40px;
}

.certification-swiper-container {
    position: relative;
    padding: 0 10px;

    margin: 40px auto;
}

.certification-swiper {
    overflow: hidden;
}

.certificate-item {
    position: relative;
    background: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 180px;
    height: 260px;
    overflow: hidden;
}

.certificate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #3B4284;
}

.certificate-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.certificate-label {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 14px;
    color: #333333;
    line-height: 20px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin-top: 10px;
}

/* ===== 合作伙伴区域 ===== */
.partners-section {
    padding: 80px 0;
    background: #F6F6F6;
}

.partners-swiper-container {
    position: relative;
    padding: 0 0px;

    margin: 40px auto;
    overflow: hidden;
}

.partners-swiper {
    overflow: hidden;
}

.partners-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 20px;
    width: 100%;
    overflow: hidden;
    position: relative;
}

.partners-row {
    display: flex;
    gap: 20px;
    flex-wrap: nowrap;
    width: max-content;
    min-width: 100%;
    justify-content: flex-start;
    will-change: transform;
    animation: partners-marquee var(--marquee-duration, 26s) linear infinite;
}

.partners-row:nth-child(1) {
    justify-content: flex-start;
    padding-left: 0;
}

.partners-row:nth-child(2) {
    justify-content: flex-start;
    padding-left: 60px;
}

.partners-row:nth-child(3) {
    justify-content: flex-start;
    padding-left: 0;
}

.partners-row:nth-child(4) {
    justify-content: flex-start;
    padding-left: 60px;
}

.partner-item {
    background: #ffffff;
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    width: 200px;
    flex-shrink: 0;
    border: 1px solid #f0f0f0;
}

.partner-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    border-color: #3B4284;
}

.partner-logo {
    max-width: 100%;
    max-height: 100%;
}

/* 轮播导航按钮样式 */
.certification-next,
.certification-prev,
.partners-next,
.partners-prev {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: #3B4284;
    border-radius: 50%;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.certification-next:hover,
.certification-prev:hover,
.partners-next:hover,
.partners-prev:hover {
    background: #2E357C;
    transform: translateY(-50%) scale(1.1);
}

.certification-next,
.partners-next {
    right: 0;
}

.certification-prev,
.partners-prev {
    left: 0;
}

.certification-next::after,
.certification-prev::after,
.partners-next::after,
.partners-prev::after {
    font-size: 16px;
    font-weight: bold;
}

.certification-next::after,
.partners-next::after {
    content: "›";
}

.certification-prev::after,
.partners-prev::after {
    content: "‹";
}

/* SEO优化辅助类 */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .certification-swiper-container,
    .partners-swiper-container {
        padding: 0 40px;
    }
    
    .certificate-item {
        width: 180px;
        height: 250px;
    }
    
    .partners-grid {
        gap: 15px;
    }
    
    .partners-row {
        gap: 15px;
    }
    
    .partners-row:nth-child(2),
    .partners-row:nth-child(4) {
        padding-left: 45px;
    }
}

@media (max-width: 991px) {
    .certificate-item {
        width: 160px;
        height: 220px;
    }
    
    .partners-grid {
        gap: 12px;
    }
    
    .partners-row {
        gap: 12px;
    }
    
    .partners-row:nth-child(2),
    .partners-row:nth-child(4) {
        padding-left: 35px;
    }
    
    .partner-item {
        height: 80px;
        width: 150px;
        padding: 15px;
    }
    
    .partner-logo {
        width: 60px;
        height: 45px;
    }
}

@media (max-width: 768px) {
    .certification-section,
    .partners-section {
        padding: 60px 0;
    }
    
    .section-header h2 {
        font-size: 28px;
        line-height: 40px;
    }
    
    .section-header .subtitle {
        font-size: 20px;
        line-height: 28px;
    }
    
    .certificate-item {
        width: 140px;
        height: 200px;
        padding: 8px;
    }
    
    .certificate-image {
        height: 100%;
    }
    
    .partners-grid {
        gap: 10px;
    }
    
    .partners-row {
        gap: 10px;
    }
    
    .partners-row:nth-child(2),
    .partners-row:nth-child(4) {
        padding-left: 25px;
    }
    
    .partner-item {
        height: 70px;
        width: 120px;
        padding: 10px;
    }
    
    .partner-logo {
        width: 50px;
        height: 35px;
    }
    
    .certification-swiper-container,
    .partners-swiper-container {
        padding: 0 20px;
    }
}

@media (max-width: 576px) {
    .partners-grid {
        gap: 8px;
    }
    
    .partners-row {
        gap: 8px;
    }
    
    .partners-row:nth-child(2),
    .partners-row:nth-child(4) {
        padding-left: 20px;
    }
    
    .partner-item {
        height: 60px;
        width: 100px;
        padding: 8px;
    }
    
    .partner-logo {
        width: 40px;
        height: 30px;
    }
}

.navbar-overlay .navbar-nav .nav-link {
    font-weight: 400;
    font-size: 20px;
    color: #C1C1C1;
    line-height: 28px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    letter-spacing: 2px;
    transition: all 0.3s ease;
}

/* 主营业务单独样式 */
.navbar-overlay .navbar-nav .nav-item.dropdown .nav-link {
    font-weight: 400;
    font-size: 20px;
    color: #C1C1C1;
    line-height: 28px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    padding-right: 5px;
    margin-left: 15px;
}

.navbar-overlay .navbar-nav .nav-link:hover,
.navbar-overlay .navbar-nav .nav-link.active {
    color: #ffffff !important;
    transform: translateY(-2px);
}

.navbar-overlay .navbar-nav .nav-link.active {
    font-weight: 600;
    color: #ffffff !important;
}

/* ===== 下拉菜单样式 ===== */
.dropdown-toggle::after {
    display: inline-block;
    margin-left: 0.255em;
    vertical-align: 0.255em;
    content: "";
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
}

.dropdown-toggle .fas.fa-chevron-down {
    transition: transform 0.3s ease;
}

.dropdown.show .fas.fa-chevron-down {
    transform: rotate(180deg);
}

.dropdown-menu {
    background-color: #ECA031;
    border: none;
    border-radius: 8px;
    margin-top: 0;
    padding: 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    min-width: 200px;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    color: #fff !important;
    font-size: 16px;
    padding: 12px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    letter-spacing: 1px;
    text-align: center;
}

.dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff !important;
}

.dropdown-item:last-child {
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

/* ===== 轮播图样式 ===== */
.banner-swiper {
    width: 100%;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.banner-swiper .swiper-slide {
    width: 100%;
    position: relative;
}

.swiper-slide {
    position: relative;
}

.swiper-slide-img {
    width: 100%;
    height: auto;
    display: block;
}

.swiper-slide-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;

    padding: 80px 0 40px 0;
}

.swiper-slide-content h2 {
    font-family: PingFang SC, PingFang SC;
    font-weight: 800;
    font-size: 65px;
    color: #FFFFFF;
    line-height: 91px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    max-width: 800px;
    margin: 0 auto 1rem;
    letter-spacing: 1px;
    text-decoration: underline;
    text-decoration-color: #FFFFFF;
    text-decoration-thickness: 4px;
    text-underline-offset: 15px;
}

.swiper-slide-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    max-width: 600px;
    margin: 0 auto 2rem;
    letter-spacing: 0.5px;
}

.swiper-slide-content .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ===== 轮播导航按钮 ===== */
.swiper-button-next,
.swiper-button-prev {
    color: #ffffff !important;
    width: 60px !important;
    height: 60px !important;
    background: rgba(0, 0, 0, 0.4) !important;
    border-radius: 50% !important;
    transition: all 0.3s ease !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 24px !important;
    font-weight: bold !important;
    border: 2px solid rgba(255, 255, 255, 0.3) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    z-index: 10 !important;
    opacity: 0.8 !important;
    position: absolute !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    cursor: pointer !important;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background: rgba(0, 0, 0, 0.6) !important;
    opacity: 1 !important;
    transform: translateY(-50%) scale(1.1) !important;
}

.swiper-button-next::after,
.swiper-button-prev::after {
    font-size: 20px !important;
    font-weight: bold !important;
}

.swiper-button-next::after {
    content: "›" !important;
}

.swiper-button-prev::after {
    content: "‹" !important;
}

.swiper-button-next {
    right: 30px !important;
}

.swiper-button-prev {
    left: 30px !important;
}

/* ===== 区块标题 ===== */
.section-title {
    position: relative;
    margin-bottom: 3rem;
    letter-spacing: 1px;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 1rem;
}

/* ===== 产品卡片 ===== */
.product-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

/* ===== 产品展示区域 ===== */
.product-display-section {
    padding: 80px 0;
    background: #f5f5f5;
}

.product-display-header {
    text-align: left;
    margin-bottom: 60px;
}

.product-display-title {
    font-family: PingFang SC, PingFang SC;
    font-weight: 800;
    font-size: 40px;
    color: #333333;
    line-height: 56px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin: 0 0 10px 0;
}

.product-display-subtitle {
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 18px;
    color: #999999;
    line-height: 26px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin: 0;
}

.product-display-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
    margin-top: 50px;
}

.product-block {
    background: #e8e8e8;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    min-height: 400px;
}

/* 动龙门系列样式 */

.product-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-name {
    font-family: PingFang SC, PingFang SC;
    font-weight: 700;
    font-size: 28px;
    color: #333333;
    line-height: 40px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin: 0 0 20px 0;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
}

.product-features li {
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 16px;
    color: #333333;
    line-height: 24px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
}

.feature-icon {
    color: #000000;
    margin-right: 8px;
    font-size: 14px;
    line-height: 24px;
}

.learn-more-btn {
    display: inline-block;
    background: #ff0000;
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 4px;
    text-decoration: none;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 16px;
    line-height: 24px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    transition: background-color 0.3s ease;
    align-self: flex-end;
}

.learn-more-btn:hover {
    background: #cc0000;
    color: #ffffff;
    text-decoration: none;
}

/* 图片容器和遮罩层 */
.product-image-container {
    position: relative;
    overflow: hidden;
    height: 100%;
}

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

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.product-image-container:hover .image-overlay {
    opacity: 1;
}

.product-image-container:hover .product-image {
    transform: scale(1.05);
}

.overlay-content {
    text-align: center;
    color: #ffffff;
    padding: 20px;
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 16px;
    color: #FFFFFF;
    line-height: 30px;
}



.overlay-content p {
    
    max-width: 80%;
    text-align: left;
    font-style: normal;
    text-transform: none;
}




.overlay-btn {
    display: block;
    margin-left: auto;
    color: #ffffff;
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 18px;
    line-height: 25px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}



/* 产品标签 */
.product-label {
    position: absolute;
    bottom: 0px;
    left: 0px;
    background: rgba(255, 255, 255, 0.95);
    padding: 8px 12px;
    z-index: 10;
    
   
}

.product-label span {
    color: #2E357C;
    font-size: 18px;
    line-height: 26px;
    white-space: nowrap;
}

.product-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 1);
}

/* 左上角产品图标 */
.product-icon {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 15;
    width: 78.861px;
    height: 67.858px;
}

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

/* 设备面板中的产品图标 */
.equipment-panel .product-icon {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 15;
    width: 78.861px;
    height: 67.858px;
}

.equipment-panel .product-icon svg {
    width: 100%;
    height: 100%;
}

.product-image-container:hover .product-label {
    opacity: 0;
    pointer-events: none;
}

.label-icon {
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 32px;
    color: #ffffff;
    line-height: 40px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin-bottom: 8px;
}

.label-text {
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    font-size: 18px;
    color: #ffffff;
    line-height: 24px;
    text-align: center;
    font-style: normal;
    text-transform: none;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .product-display-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-block:first-child {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-info {
        order: 2;
    }
    
    .product-image-container {
        order: 1;
        height: 300px;
    }
}

@media (max-width: 768px) {
    /* 在移动端隐藏产品展示模块 */
    .product-display-section {
        display: none !important;
    }
    
    .product-display-title {
        font-size: 2rem;
    }
    
    .product-name {
        font-size: 1.5rem;
    }
    
    .product-features li {
        font-size: 14px;
    }
    
    .product-image-container {
        height: 250px;
    }
}

/* ===== 产品整体解决方案区域 ===== */
.product-solution-section {
    padding: 80px 0;
    background: url('../images/jjfabg.jpg') no-repeat top center;
    background-size: cover;
    background-repeat: no-repeat;
}

/* 产品整体解决方案标题样式 */
.product-solution-section .company-overview-title h2 {
    font-family: OPPOSans, OPPOSans;
    font-weight: 800;
    font-size: 40px;
    color: #FFFFFF;
    line-height: 56px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

/* 产品整体解决方案副标题样式 */
.product-solution-section .company-overview-title .subtitle {
    font-family: PingFang SC, PingFang SC;
    font-weight: 300;
    font-size: 30px;
    color: #FFFFFF;
    line-height: 42px;
    text-align: left;
    font-style: normal;
    text-transform: none;
}

.product-solution-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.product-solution-section .container {
    position: relative;
    z-index: 2;
}

.solution-content {
    margin-top: 600px;
}

/* 顶部：电动汽车底盘和焊接应用 */
.solution-top-section {
    margin-bottom: 60px;
}

.ev-chassis-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.ev-chassis-image {
    position: relative;
    width: 100%;
    height: 400px;
    background: #e9ecef;
    border-radius: 8px;
    overflow: hidden;
}

/* 电动汽车底盘可视化 */
.chassis-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.chassis-frame {
    position: relative;
    width: 80%;
    height: 70%;
    background: #d1d3d4;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chassis-body {
    position: absolute;
    width: 90%;
    height: 60%;
    background: #b8b9ba;
    border-radius: 6px;
    top: 20%;
}

.battery-pack {
    position: absolute;
    width: 60%;
    height: 25%;
    background: #2c3e50;
    border-radius: 4px;
    top: 35%;
    left: 20%;
    border: 2px solid #34495e;
}

.control-box {
    position: absolute;
    width: 15%;
    height: 20%;
    background: #95a5a6;
    border-radius: 4px;
    top: 15%;
    left: 10%;
    border: 2px solid #7f8c8d;
}

.motor-housing {
    position: absolute;
    width: 18%;
    height: 22%;
    background: #7f8c8d;
    border-radius: 4px;
    top: 15%;
    right: 10%;
    border: 2px solid #6c7b7d;
}

.chassis-wheels {
    position: absolute;
    width: 100%;
    height: 100%;
}

.wheel {
    position: absolute;
    width: 12%;
    height: 12%;
    background: #2c3e50;
    border-radius: 50%;
    border: 3px solid #34495e;
}

.wheel-front-left {
    top: 5%;
    left: 5%;
}

.wheel-front-right {
    top: 5%;
    right: 5%;
}

.wheel-rear-left {
    bottom: 5%;
    left: 5%;
}

.wheel-rear-right {
    bottom: 5%;
    right: 5%;
}

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

/* 焊接点标记 */
.welding-points {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.welding-point {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.point-marker {
    width: 12px;
    height: 12px;
    background: #ff0000;
    border: 2px solid #ffffff;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    animation: pulse 2s infinite;
}

.point-label {
    background: rgba(0, 0, 0, 0.8);
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* 中间：搅拌摩擦焊接设备和工具 */
.solution-middle-section {
    margin-bottom: 20px;
    text-align: center;
}

.arrow-down {
   padding-top: 60px;
    margin-bottom: 40px;
    animation: bounce 2s infinite;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.arrow-down svg {
    width: 100%;
    height: auto;
    max-width: 90px;
    max-height: 38px;
}



@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.equipment-panels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.equipment-panel {
    background: #ffffff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 2px solid #e9ecef;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.equipment-panel:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.panel-number {
    position: absolute;
    top: -15px;
    left: 20px;
    background: #2E357C;
    color: #ffffff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(46, 53, 124, 0.3);
    font-family: Arial, sans-serif;
}

.panel-title {
    font-family: PingFang SC, PingFang SC;
    font-weight: 700;
    font-size: 20px;
    color: #333333;
    text-align: center;
    margin-bottom: 20px;
    margin-top: 10px;
}

.panel-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
}

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

.equipment-panel:hover .equipment-img {
    transform: scale(1.05);
}

.youzhi-logo {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: #ffffff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

/* 设备占位符样式 */
.equipment-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.equipment-icon {
    font-size: 48px;
    opacity: 0.6;
}

/* 冷却板占位符样式 */
.plate-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.plate-icon {
    font-size: 36px;
    opacity: 0.6;
}

/* 底部：电池包冷却板焊接 */
.solution-bottom-section {
    text-align: center;
}

.arrow-up {
    margin-top: 40px;
   margin-bottom: 60px;
    animation: bounce 2s infinite reverse;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.arrow-up svg {
    width: 100%;
    height: auto;
    max-width: 90px;
    max-height: 38px;
}

/* 电池包冷却板焊接图片 */
.dch-image {
    width: 100%;
    height: auto;
    margin: 0 auto;
    display: block;
}



.cooling-plate-types {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin: 0 auto;
   
}

.cooling-plate-types .company-badge{
    font-size: 36px;
    color: #fff;
}

.cooling-plate-types .company-badge::before{
    border: 1px solid #fff;

    background: radial-gradient(circle at center, #ffffff 0, #ffffff 5px, transparent 5px);
}

.plate-image {
    width: 100%;
    height: 180px;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

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

.cooling-plate-type:hover .plate-img {
    transform: scale(1.05);
}

.plate-title {
    font-family: PingFang SC, PingFang SC;
    font-weight: 600;
    font-size: 18px;
    color: #333333;
    text-align: center;
    line-height: 1.4;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .equipment-panels {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cooling-plate-types {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .ev-chassis-container {
        padding: 20px;
    }
    
    .ev-chassis-image {
        height: 300px;
    }
    
    .product-solution-section {
        min-height: auto;
        padding: 60px 0;
        background-size: cover;
        background-position: center center;
        background-attachment: scroll;
        /* 确保背景图片在平板上完全显示 */
        background-repeat: no-repeat;
    }
    
    .dch-image {
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .product-solution-section {
        padding: 40px 0;
        min-height: auto;
        background-size: cover;
        background-position: center center;
        background-attachment: scroll;
        background-repeat: no-repeat;
        /* 移动端优化：确保图片内容完整显示 */
    }
    
    .ev-chassis-image {
        height: 250px;
    }
    
    .dch-image {
        max-width: 400px;
        border-radius: 8px;
    }
    
    .equipment-panel {
        padding: 20px;
    }
    
    .panel-image {
        height: 150px;
    }
    
    .cooling-plate-type {
        padding: 20px;
    }
    
    .plate-image {
        height: 140px;
    }
    
    .arrow-down,
    .arrow-up {
        font-size: 36px;
    }
    
    .chassis-frame {
        width: 90%;
        height: 80%;
    }
    
    .welding-point {
        transform: scale(0.8);
    }
    
    .point-label {
        font-size: 12px;
        padding: 4px 8px;
    }
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    /* 横幅区域 */
    .banner-section {
        /* 移除固定高度，让banner自适应 */
        height: auto;
    }
    
    /* 移动端吸顶样式调整 */
    .navbar-overlay.sticky {
        padding: 0.3rem 0;
    }
    
    .navbar-overlay.sticky .navbar-nav .nav-link {
        font-size: 16px;
        padding: 0.5rem 0.3rem;
    }
    
    /* 导航栏覆盖 */
    .navbar-overlay {
        padding: 0.5rem 0;
        border-bottom: 2px solid #C1C1C1;
    }
    
    /* 轮播内容 */
    .swiper-slide-content {
        padding-top: 60px;
    }
    
    .swiper-slide-content h2 {
        font-family: PingFang SC, PingFang SC;
        font-weight: 800;
        font-size: 40px;
        color: #FFFFFF;
        line-height: 56px;
        text-align: center;
        font-style: normal;
        text-transform: none;
        letter-spacing: 0.5px;
        text-decoration: underline;
        text-decoration-color: #FFFFFF;
        text-decoration-thickness: 3px;
        text-underline-offset: 10px;
    }
    
    .swiper-slide-content p {
        font-size: 1rem;
        letter-spacing: 0.3px;
    }
    
    /* 轮播导航按钮 */
    .swiper-button-next,
    .swiper-button-prev {
        width: 50px !important;
        height: 50px !important;
        font-size: 20px !important;
    }
    
    .swiper-button-next::after,
    .swiper-button-prev::after {
        font-size: 16px !important;
    }
    
    /* 垂直分隔线 */
    .vertical-divider {
        display: none;
    }
    
    /* 导航栏 */
    .navbar {
        padding: 0.5rem 0;
    }
    
    /* 横幅轮播 */
    .banner-swiper {
        /* 移除固定高度，让banner自适应 */
        height: auto;
    }
}

@media (max-width: 991px) {
    .dropdown-menu {
        background-color: transparent;
        border: none;
        box-shadow: none;
    }
    
    .dropdown-item {
        color: #C1C1C1 !important;
        padding: 8px 15px;
        border-bottom: 1px solid rgba(193, 193, 193, 0.1);
    }
}

/* ===== 产品展示区域样式 ===== */
.product-showcase-container {
    background: #f8f9fa;
    padding: 10px 0;
    border-radius: 10px;
}

.product-showcase-title {
    text-align: center;
    margin-bottom: 40px;
}

.product-showcase-title h2 {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin: 0;
    letter-spacing: 1px;
}

.product-showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 0 auto;
    padding: 0 5px;
}

.product-showcase-item {
    background: #fff;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-showcase-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.product-item-title {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    text-align: left;
    letter-spacing: 0.5px;
}

.product-item-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-features li {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 8px;
    text-align: left;
    letter-spacing: 0.3px;
}

.product-image-wrapper {
    margin: 15px 0;
    text-align: center;
}

.product-showcase-image {
    width: 100%;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    position: relative; /* Added for absolute positioning of icon */
}

.product-number-icon {
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: 10;
    width: 60px;
    height: 50px;

}

.product-number-icon svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.4));
    transition: transform 0.3s ease;
}

.product-number-icon:hover svg {
    transform: scale(1.1);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
}

.product-number-icon text {
    font-family: Arial, sans-serif;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.product-showcase-image:hover {
    transform: scale(1.02);
}

.product-showcase-image img {
    width: 100%;
    height: auto;
    border-radius: 6px;
    display: block;
}

.learn-more-link {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    margin-top: 10px;
    display: inline-block;
    transition: color 0.3s ease;
    letter-spacing: 0.5px;
}

.learn-more-link:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .product-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .product-showcase-title h2 {
        font-size: 28px;
    }
    
    .product-item-title {
        font-size: 22px;
    }
}

@media (max-width: 768px) {
    .product-showcase-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .product-showcase-container {
        padding: 30px 0;
    }
    
    .product-showcase-title h2 {
        font-size: 24px;
    }
    
    .product-item-title {
        font-size: 20px;
    }
    
    .product-features li {
        font-size: 13px;
    }
}

/* ===== 联系我们区域样式 ===== */
.contact-section {
    padding: 80px 0;
    background: #fff;
}

.contact-content {
    margin-top: 50px;
}

/* 统一的联系信息样式 */
.contact-info {
    display: flex;
    align-items: center;
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 18px;
    color: #2E357C;
    line-height: 28px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    flex-direction: row;
    justify-content: center;
    align-content: center;
    gap: 0px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: 12px;
    padding: 20px;
    height: 100%;
    min-height: 120px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon-img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    margin-right: 8px;
}

.contact-title {
    font-family: PingFang SC, PingFang SC;
    font-weight: bold;
    font-size: 24px;
    color: #333333;
    line-height: 28px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    margin-bottom: 20px;
}

/* 二维码区域样式 */
.qr-code-item{
    align-items: center;
    text-align: center;
}

.qr-code-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 地图区域样式 */
.contact-map {
    height: 500px;
    background: #e9ecef;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.map-container {
    width: 100%;
    height: 100%;
    position: relative;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* 百度地图容器样式 */
#allmap {
    width: 100% !important;
    height: 500px !important;
    border-radius: 12px;
    overflow: hidden;
}

/* 确保地图控件样式正确 */
.BMapLabel {
    border: none !important;
    background: transparent !important;
}

/* 漂浮的联系信息框样式 */
.floating-contact-info {
    position: absolute;
    top:40px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    padding: 25px;
    max-width: 280px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 50;
    transition: all 0.3s ease;
}

.floating-contact-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.contact-info-section {
    margin-bottom: 40px;
}

.contact-info-section:last-child {
    margin-bottom: 0;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-icon {
    width: 22px;
    height: 22px;
    background: #666;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-icon img {
    width: 14px;
    height: 14px;
    color: white;
}

.contact-icon svg {
    width: 14px;
    height: 14px;
    fill: white;
}

.contact-icon i {
    color: white;
    font-size: 11px;
}

.contact-details {
    flex: 1;
}

.contact-label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.2;
}

.contact-value {
    font-size: 12px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 3px;
}

.contact-value:last-child {
    margin-bottom: 0;
}

.contact-divider {
    height: 1px;
    background: #e0e0e0;
    margin: 20px 0;
    width: 100%;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .floating-contact-info {
        position: relative;
        top: auto;
        right: auto;
        margin: 20px auto;
        max-width: 100%;
        width: calc(100% - 40px);
        padding: 20px;
    }
    
    .contact-info-section {
        margin-bottom: 15px;
    }
    
    .contact-info-item {
        gap: 12px;
    }
    
    .contact-icon {
        width: 20px;
        height: 20px;
    }
    
    .contact-icon i {
        font-size: 10px;
    }
    
    .contact-label {
        font-size: 13px;
        margin-bottom: 5px;
    }
    
    .contact-value {
        font-size: 11px;
        margin-bottom: 2px;
    }
    
    .contact-divider {
        margin: 15px 0;
    }
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px;
}

.company-location {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(46, 53, 124, 0.9);
    color: #ffffff;
    padding: 15px;
    border-radius: 8px;
    max-width: 300px;
    backdrop-filter: blur(10px);
}

.location-info h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.location-info p {
    font-size: 14px;
    margin-bottom: 5px;
    opacity: 0.9;
}

.headquarters-info {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-radius: 8px;
    max-width: 280px;
    backdrop-filter: blur(10px);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item i {
    color: var(--primary-color);
    font-size: 16px;
    width: 20px;
}

.info-item span {
    font-size: 14px;
    color: #333333;
    line-height: 1.4;
}

/* ===== 底部样式 ===== */
.footer {
    background: #2E357C;
    color: #ffffff;
}

.footer-top {
    padding: 15px 0;
    background: #2E357C;
}

.footer-bottom {
    padding: 20px 0;
    background: #000000;
}

.footer-logo h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
    letter-spacing: 1px;
}

.footer-nav .nav {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-nav .nav-item {
    display: flex;
    align-items: center;
}

.footer-nav .nav-link {
    font-family: PingFang SC, PingFang SC;
    font-weight: 300;
    font-size: 20px;
    color: #999999;
    line-height: 28px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    padding: 8px 12px;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-nav .nav-link:hover {
    color: #C1C1C1 !important;
}

.nav-divider {
    font-size: 16px;
    font-weight: 300;
    margin: 0 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
}

.copyright {
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    font-size: 14px;
    color: #ffffff;
    line-height: 20px;
    text-align: center;
    font-style: normal;
    text-transform: none;
    margin: 0;
    letter-spacing: 0.5px;
}

/* 响应式设计 */
@media (max-width: 991px) {
    .contact-map {
        height: 400px;
    }
    
    .footer-nav .nav {
        gap: 8px;
    }
    
    .footer-nav .nav-link {
        font-size: 14px;
        padding: 6px 10px;
    }
}

@media (max-width: 768px) {
    .contact-section {
        padding: 60px 0;
    }
    
    .contact-item {
        padding: 20px 15px;
        gap: 12px;
        margin-bottom: 15px;
        min-height: 120px;
    }
    
    .contact-icon {
        width: 50px;
        height: 50px;
    }
    
    .contact-icon-img {
        width: 24px;
        height: 24px;
    }
    
    .qr-code-placeholder {
        width: 50px;
        height: 50px;
    }
    
    .qr-code-img {
        width: 25px;
        height: 25px;
    }
    
    .contact-title {
        font-size: 16px;
    }
    
    .contact-info {
        font-size: 13px;
    }
    
    .contact-map {
        height: 350px;
    }
    
    .company-location,
    .headquarters-info {
        position: relative;
        top: auto;
        bottom: auto;
        left: auto;
        right: auto;
        margin: 10px;
        max-width: none;
    }
    
    .footer-top {
        padding: 30px 0;
    }
    
    .footer-bottom {
        padding: 15px 0;
    }
    
    .footer-logo h3 {
        font-size: 20px;
        text-align: center;
        margin-bottom: 20px;
    }
    
    .footer-nav .nav {
        justify-content: center;
        gap: 5px;
    }
    
    .footer-nav .nav-link {
        font-size: 13px;
        padding: 5px 8px;
    }
    
    .nav-divider {
        font-size: 13px;
        margin: 0 3px;
    }
    
    .copyright {
        font-size: 12px;
    }
}

/* 图片模态框样式 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease-in-out;
}

.modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: 20px;
    box-sizing: border-box;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10000;
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    backdrop-filter: blur(10px);
}

.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.modal-image {
    max-width: 90%;
    max-height: 80%;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease-in-out;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.modal-image:hover {
    transform: scale(1.02);
}

.modal-title {
    color: #fff;
    font-size: 24px;
    font-weight: 600;
    margin-top: 20px;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease-in-out 0.1s both;
}

/* 认证图片悬停效果 */
.certificate-image {
    cursor: pointer;
    transition: all 0.3s ease;
}

.certificate-image:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-content {
        padding: 10px;
    }
    
    .close-btn {
        top: 10px;
        right: 15px;
        font-size: 30px;
        width: 40px;
        height: 40px;
    }
    
    .modal-image {
        max-width: 95%;
        max-height: 70%;
    }
    
    .modal-title {
        font-size: 18px;
        margin-top: 15px;
    }
}

@media (max-width: 480px) {
    .modal-image {
        max-width: 98%;
        max-height: 60%;
    }
    
    .modal-title {
        font-size: 16px;
        margin-top: 10px;
    }
}

@keyframes partners-marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 移动端背景图片自适应优化 */
@media (max-width: 480px) {
    .product-solution-section {
        padding: 30px 0;
        background-size: cover;
        background-position: center top;
        background-attachment: scroll;
        background-repeat: no-repeat;
        min-height: 60vh;
        /* 小屏幕优化：重点显示图片上半部分 */
    }
}

/* 超小屏幕优化 */
@media (max-width: 360px) {
    .product-solution-section {
        padding: 20px 0;
        background-size: auto 100%;
        background-position: center top;
        background-attachment: scroll;
        background-repeat: no-repeat;
        min-height: 50vh;
        /* 超小屏幕：使用auto 100%保持图片比例 */
    }
}

/* 横向显示的手机优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .product-solution-section {
        background-size: 100% auto;
        background-position: center center;
        min-height: 80vh;
        /* 横屏时优化背景图片显示 */
    }
}

/* 高分辨率移动设备优化 */
@media (max-width: 768px) and (-webkit-min-device-pixel-ratio: 2) {
    .product-solution-section {
        background-size: cover;
        background-position: center center;
        /* 高分辨率设备保持cover模式获得最佳效果 */
    }
}

/* 针对iPhone等窄屏设备的特殊优化 */
@media (max-width: 414px) and (max-height: 896px) {
    .product-solution-section {
        background-size: cover;
        background-position: center 30%;
        /* 针对iPhone等设备调整焦点位置 */
    }
}


.factory-gallery {
    margin: 2em 0 1em 0;
}
.factory-gallery-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}
.factory-gallery-item {
    flex: 1 1 200px;
    max-width: 23%;
    min-width: 180px;
    box-sizing: border-box;
    margin: 0;
}
.factory-gallery-item img.responsive-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
@media (max-width: 900px) {
    .factory-gallery-item {
        max-width: 48%;
    }
}
@media (max-width: 600px) {
    .factory-gallery-row {
        gap: 10px;
    }
    .factory-gallery-item {
        max-width: 100%;
        min-width: 0;
    }
}