.pay-by-parts {
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #333;
    max-width: 100%;
}

    .pay-by-parts summary {
        font-weight: bold;
        font-size: 17px;
        cursor: pointer;
        margin-top: 10px;
        color: #0077cc;
    }

    .pay-by-parts details {
        margin-top: 15px;
    }

    .pay-by-parts div {
        padding: 10px 0;
    }

    .pay-by-parts a {
        color: #0077cc;
        text-decoration: underline;
    }

@media screen and (max-width: 600px) {
    .pay-by-parts {
        font-size: 15px;
    }

        .pay-by-parts summary {
            font-size: 16px;
        }
}