body {
    margin: 0; /* 清除默认边距 */
    display: flex;
    flex-direction: column; /* 垂直排列 */
}

#main {
    flex: 1; /* 占据剩余空间 */
    /*min-height: 600px;*/
    background-image: url(/static/images/frontbg.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-size: 100% 100%;
}

#main_Title {
    height: 180px;
    color: #fff;
    text-align: center;
    font-weight: bold;
    padding-top: 70px;
    padding-bottom: 40px;
    width: 968px;
    margin: auto;
}

#cnTitle {
    font-size: 72px;
}

#enTitle {
    font-size: 36px;
}
#dvAI {
    display: inline-block;
}

#dvAImobile {
    display: none;
}

@media only screen and (max-width: 1200px) {
    .nav-logo {
        display: none;
    }

    .nav-list {
        width: 100%;
    }

    #main {
        background-image: none;
    }

    body {
        background-image: url(/static/images/PhoneBackImg.png);
        background-repeat: no-repeat;
        background-size: contain;
        background-color: #fff;
    }

    .nav {
        background: none;
    }

    .divphone {
        display: block !important;
    }

    .divphone {
        height: 45px;
        line-height: 45px;
    }

    .layui-nav {
        display: none;
    }

    #main_Title {
        width: 100%;
        height: 66px;
        padding-top: 20px !important;
        padding-bottom: 0px !important;
    }

        #main_Title > img {
            width: 100%;
        }

    #cnTitle {
        font-family: Microsoft YaHei;
        font-size: 26px !important;
        font-weight: 700;
    }

    #enTitle {
        font-family: Microsoft YaHei;
        font-size: 13px !important;
    }

    .nav .layui-nav {
        top: 45px;
        background-color: #fff;
        padding-top: 20px;
        padding-bottom: 20px;
        z-index: 1000;
        border-bottom-left-radius: 8px;
        border-bottom-right-radius: 8px;
    }

    .layui-nav {
        padding: 0 15px;
    }

    .nav .layui-nav .layui-nav-item {
        line-height: 50px;
        border-bottom: 1px solid #DBDBDB;
    }

        .nav .layui-nav .layui-nav-item a {
            font-size: 16px;
            color: #000000;
            padding-left: 12px;
        }

        .nav .layui-nav .layui-this a, .nav .layui-nav .layui-nav-item:hover a {
            color: #004E7B !important;
        }

    .ti-arrow-right {
        display: none;
    }

    .layui-nav > li > a:after {
        background-color: #fff;
    }

    .footer-area {
        display: none;
    }

    .modal-overlay {
        position: fixed; /* 或 absolute，取决于你的布局 */
        top: 45px;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.5); /* 半透明黑色 */
        z-index: 100; /* 确保它在其他内容之上 */
    }

    .scrollnav {
        position: inherit;
    }
    #dvAI{
        display:none !important;
    }
    #dvAI2{display:none !important;}
    /*#dvAImobile {
        display: inline-block !important;
    }*/
    #dvAImobile {
        display: inline-block;
        position: absolute;
        right: 10px;
        top: 5px;
        cursor: pointer;
        width: 40px;
        text-align: center;
    }
    #dvAImobile>div>img {
        width:40px;
        height:30px;
    }
        #dvAImobile > .dvAIWord {
            font-size: 10px;
            color: #fff;
            margin-top: -5px;
            font-family: Source Han Sans;
            font-weight: normal;
        }
}