.footer{
    text-align: center;
    display: flex;
    align-items: center;
    background: rgba(4, 84, 37, 1);
    height: 179px;
    color: #fff;
    justify-content: center;
    line-height: 32px;
}
.footer a{
    color: #fff;
}
.footer a:hover{
    color: #f2ff00;
}
/* 自定义返回顶部按钮样式 */
#backToTop {
    position: fixed;
    bottom: 50px;
    right: 50px;
    width: 50px;
    height: 50px;
    background-color:  rgba(3, 108, 46, 1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    display: none; /* 初始隐藏 */
}