/* Trang bài viết chuẩn SEO (public/bai/*.html). Dùng chung biến màu của style.css. */
.bai-bv{max-width:820px;margin:0 auto;padding:8px 0 56px}
.bai-bv h1{font-size:1.9rem;line-height:1.2;margin:14px 0 8px}
.bai-bv h2{font-size:1.3rem;margin:34px 0 10px;scroll-margin-top:100px}
.bai-bv p{font-size:1rem;line-height:1.75;margin:0 0 14px;max-width:68ch}
.bai-bv .meta{font-size:.84rem;color:var(--mute);margin:0 0 18px}
.bai-bv .hero{width:100%;height:auto;aspect-ratio:1200/630;border-radius:var(--r);background:var(--nau-l)}
.bai-bv .small{margin:6px 0 22px}
.bsp-ds{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:0 0 24px}
.bsp{display:flex;flex-direction:column;gap:8px;text-decoration:none;color:var(--ink);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.bsp img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;background:var(--nau-l)}
.bsp span{padding:0 12px 12px;font-size:.92rem;line-height:1.35;font-weight:600}
.bsp:hover{border-color:var(--nau)}
.nguon{margin-top:38px;padding-top:20px;border-top:1px solid var(--line)}
.nguon ol{padding-left:20px;margin:0 0 12px}
.nguon li{font-size:.92rem;line-height:1.6;margin-bottom:6px}
.lq{margin-top:30px}
.lq ul{padding-left:20px}
.lq li{margin-bottom:6px}
@media(min-width:760px){.bsp-ds{grid-template-columns:repeat(4,1fr)}.bai-bv h1{font-size:2.3rem}}