@media screen and (min-width: 769px) {
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    ul>li {
        list-style: none;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

   /* img {
        display: block;
    }*/

    body {
        position: relative;
        min-width: 1400px;
        background-color: #EAEFF7;
        display: flex;
        flex-direction: column;
        min-height: 100vh;
    }

    /* 电脑手机样式切换需要隐藏的部分 */
    .mobile {
        display: none !important;
    }

    /* AI链接 */
    .AI-box {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 99;
    }

    .AI-box img {
        display: block;
        width: 80px;
        height: 80px;
    }

    body>header {
        position: relative;
        min-width: 1200px;
        height: 783px;
        background-image: url(../imgs/header-bg.jpg);
        background-size: 100% 100%;
        background-repeat: no-repeat;
        padding-top: 23px;
    }

    body>header .nav-container {
        display: flex;
        align-items: center;
        height: 58px;
        width: 1200px;
        margin: 0 auto;
    }

    .nav-container .logo {
        margin-right: 51px;
        width: 368px;
        height: 58px;
    }

    .nav-container .logo img {
        width: 368px;
        height: 58px;
    }

    .nav-container .nav {
        display: flex;
        white-space: nowrap;
    }

    .nav-item {
        margin-right: 27px;
        color: #FFFFFF;
        font-size: 20px;
    }

    .nav>li {
        position: relative;
    }

    .nav .nav-children {
        position: absolute;
        display: none;
        flex-direction: column;
        justify-content: space-between;
        background: #FFFFFF;
        border-radius: 10px;
        font-size: 16px;
        color: #000000;
        width: max-content;
        white-space: nowrap;
        text-align: center;
        padding: 15px 30px;
        left: calc((100% - 27px) / 2);
        transform: translate(-50%, 0);
        z-index: 10;
    }

    .nav .nav-children>li:not(:first-child) {
        margin-top: 14px;
    }

    .nav .nav-children>li:hover {
        color: #2D6AB0;
    }

    .nav>li:hover .nav-children {
        display: flex;
    }

    body>main {
        margin-top: -287px;
        margin-bottom: 30px;
        flex: 1;
    }

    .main-container {
        position: relative;
        width: 1200px;
        min-height: 972px;
        margin: 0 auto;
        background: #FFFFFF;
        box-shadow: 0px 4px 20px 0px rgba(165, 194, 227, 0.24);
        border-radius: 10px;
    }

    .main-container>header {
        position: absolute;
        top: 34px;
        left: 34px;
        color: #383838;
        font-size: 24px;
    }



    .main-container>.tag-container {
        position: absolute;
        top: 41px;
        left: 34px;
        display: flex;
        align-items: center;
    }

    .main-container>.tag-container .tag {
        width: 3px;
        height: 15px;
        background: #3770BB;
        margin-right: 14px;
    }

    .main-container>.tag-container .tag-text {
        font-weight: 600;
        font-size: 16px;
        color: #000000;
    }

    .main-container>.artical-container {
        width: 100%;
        padding: 74px 34px 34px 34px;
    }

    .main-container>.artical-container .artical {
        border-top: 1px solid #E2E7F0;
    }

    footer {
        height: 122px;
        background: #212933;
        font-size: 12px;
        color: #687082;
    }

    footer>.footer-container {
        width: 1200px;
        margin: 0 auto;
        padding: 30px 0;
    }
}