body {
    margin: 0;
    padding: 0;
}

.box {
    max-width: 700px;
    margin: 0 auto;
    padding: 0 1rem;
}

.title22 {
    font-size: 20px;
    padding: 1rem 0 0 0;
    font-weight: bold;
}
ul{
    padding: 1rem;
}

.footerli{
    margin-top: 2rem;
    width: 100%;
    display: flex;
    justify-content: space-evenly;
    a{
        color: #727171;
    }
}

@media screen and (max-width:700px) {
    .footerli{
        margin-top: 1rem;
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        a{
            margin-top: 1rem;
            color: #727171;
            text-align: center;
        }
    }
    .titlebox2{
        font-size: 16px;
        font-weight: bold;
    }
    .title2{
        font-size: 15px;
        padding: 0.6rem 0;
    }
    .bluexian{
        height: 2px;
    }
    p{
        font-size: 14px;
    }
}