.campaign-intro-letter {
    max-width: 1200px;
    margin: 60px auto 80px auto;
    color: #1a3a6b;
}

.campaign-intro-letter p {
    font-size: 1.5rem;
    line-height: 1.9;
    color: #1a3a6b;
    margin-bottom: 24px;
}

.campaign-intro-letter p:first-child {
    font-size: 1.7rem;
    font-weight: 600;
    margin-bottom: 28px;
}

@media (max-width: 768px) {
    .campaign-intro-letter {
        margin: 40px auto 60px auto;
    }

    .campaign-intro-letter p {
        font-size: 1.2rem;
    }

    .campaign-intro-letter p:first-child {
        font-size: 1.4rem;
    }
}