/* Bài viết SEO (Đợt 28, scripts/bai-viet.mjs) — dùng chung biến màu/chữ của web/home.css */
.bv-nav { display: flex; align-items: center; gap: 18px; font-weight: 600; font-size: 14px; }
.bv-nav .nav-cta { padding: 9px 18px; border-radius: 999px; background: var(--wine); color: #fff; }
.bv { padding: 28px var(--gut) 64px; }
.bv article { max-width: 720px; margin: 0 auto; }
.bv-crumb { font-size: 13px; color: var(--muted); margin: 0 0 14px; }
.bv-crumb a { color: var(--wine); font-weight: 600; }
.bv h1 { font: 500 clamp(30px, 6vw, 46px)/1.15 var(--serif); text-wrap: balance; margin-bottom: 16px; }
.bv h2 { font: 500 clamp(22px, 4vw, 28px)/1.25 var(--serif); margin: 40px 0 12px; text-wrap: balance; }
.bv p, .bv li { font-size: 16.5px; line-height: 1.75; text-wrap: pretty; }
.bv-lead { font-size: 18px !important; color: var(--muted); }
.bv ul, .bv ol { padding-left: 22px; display: grid; gap: 6px; }
.bv a:not(.btn) { color: var(--wine); text-decoration: underline; text-underline-offset: 3px; }
.bv code { font-size: .9em; background: var(--bg2); padding: 2px 6px; border-radius: 6px; word-break: break-all; }
.bv table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 12px 0; display: block; overflow-x: auto; }
.bv th, .bv td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.bv thead th { font-size: 13px; color: var(--muted); }
.bv tbody th { font-weight: 600; white-space: nowrap; }
.loi { position: relative; margin: 12px 0; padding: 18px 20px 18px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; }
.loi blockquote { margin: 0; padding-right: 64px; font: italic 400 17px/1.7 var(--serif); }
.chep { position: absolute; top: 12px; right: 12px; border: 1.5px solid var(--wine); background: transparent; color: var(--wine); border-radius: 999px; padding: 5px 12px; font-size: 13px; font-weight: 600; min-height: 32px; }
.chep:hover { background: rgba(122,31,43,.06); }
.mau { margin: 12px 0; padding: 16px 20px; border-left: 3px solid var(--rose); background: var(--card); border-radius: 0 14px 14px 0; font-style: italic; }
.tip { padding: 14px 18px; border-radius: 14px; background: var(--bg2); font-size: 15px !important; }
.cta { margin: 44px 0 8px; padding: 28px 24px; border-radius: 24px; color: #f6e4c8; background: linear-gradient(150deg, #3a1d24, #1d1316); }
.cta h2 { margin: 0 0 8px; color: #fff; }
.cta p { color: #e8d6bf; margin: 0 0 18px; }
.cta-b { display: flex; flex-wrap: wrap; gap: 10px; }
.cta .btn--line { color: var(--gold); border-color: var(--gold); }
.bv .faq details { margin-bottom: 8px; }
.bv-more { display: grid; gap: 8px; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); }
.bv-more b { font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.foot small a { text-decoration: underline; }
@media (max-width: 420px) { .bv-nav a:not(.nav-cta) { display: none; } }