/* 基础样式重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: "Microsoft YaHei", "SimHei", sans-serif;
    }

    body {
        /* width: 1200px; */
        margin: 0 auto;
    }

    a {
        text-decoration: none;
    }

    /* 页头容器 */
    .header-container {
        position: relative;
        background: url('../images/bgimg.png') no-repeat;
        background-position: 50% 50%;
        background-size: cover;
        opacity: 1;
        /* 米黄色背景 */
        padding: 0 50px;
        width: 100% !important;
        height: 480px !important;
        z-index: 0 !important;
        top: 0;
        left: 0;
    }

    /* 顶部信息栏 */
    .top-bar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 80px;
        /* 固定高度 */
    }

    /* 左侧logo区域 */
    .logo-box {
        display: flex;
        align-items: center;
        width: 33%;
    }

    .logo-img {
        width: 60px;
        height: 60px;
        margin-right: 12px;
        background-size: contain;
    }

    .logo-text {
        line-height: 1.3;
    }

    .company-name {
        font-size: 20px;
        color: #005ea6;
        /* 主色调蓝色 */
        font-weight: bold;
    }

    .english-name {
        font-size: 12px;
        color: #666;
    }

    /* 右侧功能区 */
    .right-function {
        width: 100%;
        display: flex;
        gap: 25px;
        flex-direction: row;
        justify-content: flex-end;
        flex-wrap: wrap;
        align-items: center;
        margin-left: -25px;
    }


    /* 快捷链接 */
    .quick-links {
        display: flex;
        gap: 25px;
    }

    .quick-links a {
line-height: 2;
    height: 25px;
    padding-left: 25px;
    border-left-width: 1px;
    border-left-style: solid;
    border-left-color: #EEEEEE;
        color: #333;
        text-decoration: none;
        font-size: 14px;
    }

    .quick-links a:hover {
        color: #005ea6;
    }

    /* 搜索框 */
    .search-container {
        display: flex;
        align-items: center;
    }

    .search-input {
        width: 180px;
        height: 30px;
        padding: 0 10px;
        border: 1px solid #ccc;
        border-right: none;
        outline: none;
        font-size: 13px;
    }

    .search-btn {
        height: 30px;
        padding: 0 12px;
        background-color: #005ea6;
        color: white;
        border: none;
        cursor: pointer;
        font-size: 14px;
    }

  /* 主导航栏 */
    .navbar {
        padding: 0;
    }

    .nav-list {
        display: flex;
        list-style: none;
        align-items: center;
    }

    .nav-item {
        position: relative;
    }

    .nav-link {
        display: block;
        padding: 16px 0px;
        color: #333;
        padding-left: 41px;
        text-decoration: none;
        transition: color 0.3s ease;
        position: relative;
        font-family: 'Noto Sans CJK';
        font-size: 16px;
        color: #333;
        font-weight: normal;
        font-style: normal;
    }

    .nav-link:hover {
    }

    .dropdown-menu {
        position: absolute;
        top: 113%;
        left: -3px;
        background-color: #fff;
        min-width: 150px;
        /* box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08); */
        border-radius: 0 0 4px 4px;
        visibility: hidden;
        opacity: 0;
        transform: translateY(10px);
        transition: all 0.3s ease;
        z-index: 100;
    }

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

    /*         
        .dropdown-menu.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        } */

    .dropdown-item {
        text-align: center;
        display: block;
        padding: 12px 20px;
        color: #666;
        text-decoration: none;
        transition: all 0.2s ease;
        /* border-bottom: 1px solid #f0f0f0; */
    }

    .dropdown-item:hover {
        background-color: #1890ff;
        color: #f8f9fa;
    }

    .dropdown-item:last-child {
        border-bottom: none;
    }

    /* 模块 */
    .mokuai {
        background: #005ea6;
        width: 30%;
        height: 100px;
        position: absolute;
        float: left;
        margin-top: -34px;
        z-index: 10px;
        text-align: center;
        line-height: 105px;
        padding-right: 20px;
        color: #fff;
        font-size: 20px;
        font-weight: bolder;
    }

    /* from表单 */
    .from {
        text-align: end;
        height: 66px;
        display: flex;
        justify-content: flex-end;
        flex-direction: row;
        list-style: none;

    }

    .from .title {
        text-align: center;
        line-height: 3;
        display: inline-block;
        width: 118px;
        color: #4a4a4a;
        border-bottom: 3px solid transparent;
        /* 透明边框，为了切换时更平滑 */
        transition: all 0.3s ease;
        /* 过渡效果，切换更平滑 */
        font-size: 16px;
        font-weight: 400;
    }

    .from .active {
        border-bottom: 3px solid green;
    }

    .from .title:hover {
        color: #1890ff;
        border-bottom: 3px solid green;
        /* transition: border 0.3s ease; */
    }

    /* 标题标签 */
    /* 标签标题 */
    .about-section {
        margin: 60px 0 30px 0px;
        text-align: center;
        padding: 20px 20px;
        position: relative;
    }

    .about-bg {
        position: absolute;
        width: 100%;
        top: 20%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 54px;
        color: #edf2f7;
        font-weight: bolder;
        z-index: -1;
    }

    .about-title {
        font-size: 32px;
        font-weight: bold;
        color: #333;
        /* margin-bottom: 20px; */
    }

    .wenzi {
        text-align: center;
        width: 850px;
        height: 69px;
        margin: 0 auto;
        color: #666666;
        font-size: 14px;
        line-height: 2;
    }

    /* 视频 */
    .video{
        width: 1200px;
        height: 400px;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-top: 60px;
    }
    .videoson{
        width: 732px;
        height: 438px;
        background-color: black;
    }
    video{
        width: 100%;
        height: 100%;
        position: relative;
        overflow: hidden;
    }


        .pause-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 80px;
            height: 80px;
            background-color: #1E242C;
            border-radius: 50%;
            border: 2px solid rgb(255, 255, 255,0.8);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            z-index: 2;
            /* 按钮在最上层 */
        }
    
        .pause-btn:hover {
            background-color: rgba(249, 249, 249,0.3);
        }
    
        .pause-btn::before {
            content: '';
            width: 0;
            height: 0;
            border-top: 18px solid transparent;
            border-bottom: 18px solid transparent;
            border-left: 28px solid #fff;
            margin-left: 4px;
        }
        .video-container {
            position: relative;
            width: 100%;
            height: 100%;
        }
    
        /* 视频元素样式 */
        #myVideo {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display:block;
        }
    
        /* 加载中提示（过渡状态） */
        .loading {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            z-index: 1;
            display: none;
            /* 初始隐藏 */
        }
        .loading::before {
            content: '';
            width: 40px;
            height: 40px;
            border: 4px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s ease-in-out infinite;
            margin-right: 12px;
        }
        
        /* 旋转动画关键帧 */
        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

                .video-wrapper.error-active #myVideo {
                    display: none;
                    /* 直接隐藏视频元素（包含控制栏） */
                }
    
        /* 错误提示样式（最终状态，模拟你提供的图） */
        .error-message {
            position: absolute;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background-color: rgba(0, 0, 0, 0.8);
                color: #fff;
                padding: 20px;
                border-radius: 0;
                /* 取消圆角，占满容器 */
                z-index: 15;
                display: none;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                text-align: center;
        }
    
        .error-message p {
            margin-top: 20px;
            font-size: 16px;
            line-height: 1.5;
        }
    
        .error-close {
            position: absolute;
                top: 50%;
                right: 50%;
                font-size: 24px;
                cursor: pointer;
        }



/* 新闻 */
 .container {
     width: 100%;
     display: flex;
     flex-direction: column;
     justify-content: center;
     align-items: center;
     margin-top: 80px;
 }

 .list {
     width: 100%;
     display: flex;
     justify-content: space-between;
     flex-wrap: wrap;
 }

 .list>li {
     width: 280px;
     height: 280px;
     margin: 10px;
 }

 .list>li a {
     width: 100%;
     height: 100%;
 }

 .list>li a>.img {
     width: 100%;
     height: 180px;
     overflow: hidden;
 }

 .list>li a>.img img {
     width: 100%;
     height: 100%;
 }

 .list>li a>.img img:hover {
     transform: scale(1.1) !important;
     transition: all 0.4s linear;
 }

 .list>li a>span:nth-child(2) {
     margin: 0;
    padding: 0;
    padding-top: 5px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
    -moz-text-overflow: ellipsis;
    font-size: 14px;
    color: #404040;
    text-align: left;
    font-weight: normal;
    font-style: normal;
    text-decoration: none;
    font-family: Tahoma;
    line-height: 28px;
    transition: color 200ms 
linear;
 }

 .list>li a>span:nth-child(2):hover {
     text-decoration: underline;
 }

 .list>li a>span:nth-child(3) {
     display: block;
     font-size: 12px;
     color: #999999;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
     width: 100%;

 }

 .list>li a>span:nth-child(4) {
     font-size: 12px;
     color: #999999;
 }

 .list>li:nth-child(9) a span:nth-child(3) {
     display: block;
     width: 160px;
     height: 18px;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
 }


 /* 分页样式 */
 .pagination {
     display: flex;
     justify-content: center;
     align-items: center;
     gap: 8px;
 }

 .pagination button {
     padding: 6px 12px;
     border: 1px solid #ddd;
     background-color: #fff;
     color: #333;
     cursor: pointer;
     font-size: 14px;
     border-radius: 4px;
     transition: all 0.2s;
 }

 .pagination button:hover {
     background-color: #eee;
 }

 .pagination button.active {
     color: #666;
     background-color: #eee;
 }

 .pagination button:disabled {
     color: #666;
     cursor: not-allowed;
     border-color: #eee;
 }

 .page-numbers {
     display: flex;
     gap: 8px;
 }













    /* footer */
    .footer {
        margin-top: 50px;
        /* background-color: #0066cc; */
        color: #fff;
        font-size: 14px;
        padding: 20px 0;
        text-align: center;
    }

    /* 顶部链接区域 */
    .footer-nav {
        background-color: rgb(0, 90, 171);
        line-height: 4;
        font-weight: normal;
        font-style: normal;
        font-family: 'Noto Sans CJK';
    }

    .footer-nav a {
        font-weight: normal;
        font-style: normal;
        font-family: 'Noto Sans CJK';
        color: #fff;
        text-decoration: none;
        margin: 0 12px;
    }

    .footer-nav a:hover {
        text-decoration: underline;
    }

    /* 备案资质区域 */
    .footer-info {
        line-height: 25px;
        background-color: rgb(0, 90, 171);
        margin-bottom: 15px;
        font-weight: normal;
        font-style: normal;
        font-family: 'Noto Sans CJK';
    }

    .footer-info img {
        vertical-align: middle;
        margin-right: 5px;
        width: 14px;
        height: 16px;
    }

    /* 底部IPv6说明 */
    .footer-ipv6 {
        line-height: 2;
        font-weight: normal;
        font-style: normal;
        font-family: 'Noto Sans CJK';
        font-size: 12px;
        color: #999;
    }