body.single .slf-article__title {
    max-width: 24ch;
    font-size: clamp(1.85rem, 3.5vw, 3rem);
    line-height: 1.08;
    letter-spacing: -.03em;
}

@media (max-width: 620px) {
    body.single .slf-article__title {
        font-size: 1.65rem;
        line-height: 1.12;
    }
}