Change Font Family on AMP mode

/* Change Font Family on AMP mode */
function add_custom_css_for_amp_mode() {
    ?>
    /* Font Familiy in Article */
    body .amp-wp-article,
    body .amp-wp-article p {
        font-family: "Poppins";
    }
    <?php
}
add_action( 'amp_post_template_css', 'add_custom_css_for_amp_mode' );