/* 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: #005AAB;
        color: #f8f9fa;
    }

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

    /* 模块 */
    .mokuai {
        font-size: 20px;
    background: #005ea6;
    width: 30%;
    height: 100px;
    position: absolute;
    float: left;
    margin-top: -34px;
    text-align: right;
    line-height: 105px;
    padding-right: 140px;
    color: #fff;
    font-weight: bolder;
    font-family: Source Han Sans, Geneva, sans-serif;
    }

    /* from表单 */
    .from {
        text-align: end;
    height: 66px;
    display: flex;
    justify-content: flex-end;
    flex-direction: row;
    list-style: none;
     line-height:4;
    }

    .from .title {
        text-align: center;
        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 */
    }

   .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: 30px 0 30px 0px;
        text-align: center;
        padding: 20px 20px;
        position: relative;
    }

    .about-bg {
font-family: Arial Black;
        position: absolute;
        width: 100%;
        top: 20%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 80px;
        color: #edf2f7;
        font-weight: bold;
        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;
    }
    .nr{
        position: relative;
    }
    .nr .nr_a{
        display: flex;
        width: 100%;
        height: 220px;
    }

    .nr .nr_a .nr_img{
        width: 400px;
        height: 100%;
          overflow: hidden;
    }
    .nr .nr_a img{
        width: 400px;
        height: 100%;
          overflow: hidden;
        transition: all 0.3s ease;
    }
    .nr .nr_a img:hover{
        transform: scale(1.1);
    }
   
    .nr .num{
        padding: 10px;
        font-size: 16px;
        font-style: normal;
        font-weight: bold;
        color: #404040;
        transition: all 200ms linear;
    }
    .nr .num:hover{
        text-decoration:underline;
    }

    .nr span{
        position: absolute;
    top: 55px;
    left: 34%;
    }

    .S {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        padding:40px 15%;
        background-color: white;
    }
    .S .S-content{
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }
    .S .S-content .S-content-top{
        width: 100%;
        height: 200px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
   
    .S .S-content .S-content-top > text {
             font-size: 60px;
             color: #f0f5f9;
             font-weight: bold;
             opacity: 0.8;
             margin: 0 auto;
             position: relative;
             top: 0px;
         }
    
        .S .S-content .S-content-top >.black {
             font-size: 24px;
             font-weight: 600;
             margin: 0 auto;
             position: relative;
             top: -30px;
             margin-bottom: 10px;
         }
    
        .S .S-content .S-content-top >.small {
             font-size: 14px;
             margin: 5px auto;
             color: #666666;
             position: relative;
             top: -30px;
         }

         .S .S-content .text{
            width: 1200px;
            line-height: 2;
            font-size: 14px;
            color: #666666;
            margin: 40px 0;
         }

         .S .S-content .Loop{
            width: 1200px;
            margin: 40px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
         }

        .S .S-content .Loop  .list{
            width: 48%;
            border:  1px solid #EEEEEE;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 20px 10px;
            margin: 20px 0;
        }
         .S .S-content .Loop .list > img{
             width: 80px;
             height: 80px;
         }
         .S .S-content .Loop .list .listText{
            width: 100%;
            margin-top:20px ;
            font-size: 14px;
            > span:nth-child(1){
                color: #747474;
                font-weight: 600;
            }
             >span:nth-child(2) {
                 color: #666;
            }
         }
        .S .S-content .Loop .list:hover{
            box-shadow:  0 3px 10px 0 #ccc;
        }
        .S .S-content .dagImg{
            width: 1200px;
            height: 600px;
            border: 3px solid #999999;
            border-radius: 10px;
            overflow: hidden;
        }
        .S .S-content .dagImg img{
           width: 100%;
           height: 100%;
            transition: transform 0.5s ease;
        }
        .S .S-content .dagImg:hover img {
            transform: scale(1.15);
        }



   /* 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;
    }