/*  toUp小人*/
    .scroll-to-top {
        position: fixed;
        bottom: 5vh;
        right: -2vw;
        width: auto;
        height: 12vh;
        display: flex;
        align-items: center;
        cursor: pointer;
        z-index: 1100;
        opacity: 0;
        transition: opacity 0.3s ease-in-out;
    }

    .upMan {
        height: 30vh;
        width: auto;
    }

    /*  toUp小人*/
    .scroll-to-top {
        position: fixed;
        bottom: 5vh;
        right: -2vw;
        width: auto;
        height: 12vh;
        display: flex;
        align-items: center;
        cursor: pointer;
        z-index: 1100;
        opacity: 0;
        transition: opacity 0.3s ease-in-out;
    }

    .upMan {
        height: 30vh;
        width: auto;
    }

    /* 页尾 */
    .footer {
        margin-top: 5vh;
        height: auto;
        position: absolute;
        z-index: 999;
        width: 100vw;
        overflow: hidden;
        background-image: url("https://static.igem.wiki/teams/5480/.png");
        background-repeat: no-repeat;
        /* 不重复背景图像 */
        background-position: center;
        /* 图像居中显示 */
        background-size: cover;
        /* 图像缩放以覆盖整个背景区域 */
        height: 39vh;
        display: flex;
    }

    .footercontent {
        color: #fff;
        font-size: 1.1vw;
        margin-top: 24vh;
        margin-left: 2vw;
        line-height: 2vw;

        a {
            font-weight: 600;
            color: #fff;
        }
    }