.blog-detail{padding:86px 0}.blog-detail__inner{max-width:720px}.blog-detail h1{font-size:42px;line-height:1.14;font-weight:800}.blog-detail__meta{color:var(--brand-text-secondary);border-bottom:1px solid var(--brand-border);padding-bottom:18px}.blog-detail__content{margin:30px 0;color:var(--brand-text)}.post-nav{display:flex;justify-content:space-between;gap:20px;margin:24px 0}.comment-box{background:var(--brand-bg-alt);border-radius:var(--brand-radius);padding:28px}@media (max-width:640px){.post-nav{flex-direction:column}.blog-detail h1{font-size:32px}}