.single-post h1.entry-title {
    font-size: 48px;
    color: var(--primary-red);
}

.single-post .entry-content h2 { font-size: 36px; }
.single-post .entry-content h3 { font-size: 32px; }

.single-post .entry-content p,
.single-post .entry-content li {
    font-size: 22px;
    line-height: 1.3;
}

/* รูป */
.single-post .entry-content img {
    max-width: 100%;
    margin: 0 auto 25px;
    display: block;
}

/* Sticky เฉพาะ PC */
@media (min-width: 1024px) {
    .single-post .post-sidebar {
        position: sticky;
        top: 120px;
    }
}