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1fr;grid-gap:12px;gap:12px;margin-bottom:14px}.hd-khai-niem{border-radius:12px;background:var(--bg);padding:14px}.hd-khai-niem p{margin:6px 0 0;font-size:14px;line-height:1.55}.hd-kn-nhan{display:inline-block;font-size:12px;font-weight:800;color:#fff;background:var(--brand);border-radius:6px;padding:2px 8px}.hd-kn-kr{background:#fff;color:var(--brand-ink);border:1px solid var(--brand)}.hd-vd{color:var(--muted);font-style:italic}.hd-quy-tac{font-size:14px;line-height:1.6;margin:0 0 16px}.hd-meo{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px;gap:10px;font-size:13px;line-height:1.5;margin-bottom:14px}.hd-meo>div{border:1px dashed var(--input);border-radius:10px;padding:10px 12px}.hd-cach{padding:14px}.hd-cach p{margin:6px 0 0;font-size:14px;line-height:1.65}.hd-cach-nhan{font-size:12px;font-weight:800;color:var(--brand);text-transform:uppercase;letter-spacing:.04em}.hd-o-ds{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}.hd-o-ds span{font-size:13px;background:var(--bg);border-radius:8px;padding:4px 9px;color:var(--muted)}.hd-o-ds b{color:var(--ink);font-weight:700}.hd-tai{display:flex;align-items:center;gap:14px;padding:14px 16px;margin-bottom:14px;border-color:var(--brand);background:var(--brand-bg)}.hd-tai-nut{text-decoration:none;display:inline-flex;align-items:center;flex-shrink:0;min-height:44px}.hd-cau{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px;margin-bottom:10px}.hd-cau-o{padding:10px 12px}.hd-cau-o small{display:block;font-size:11px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.hd-cau-o span{font-size:14px;font-weight:600}.hd-cuoi{text-align:center;padding:16px 0}@media (max-width:640px){.hd-khung{padding:0 14px}.hd-hero{padding:24px 0 16px}.hd-hero h1{font-size:26px}.hd-hero p{font-size:15px}.hd-lo-trinh{grid-template-columns:1fr 1fr;gap:8px}.hd-muc{padding:18px 16px}.hd-muc-dau{display:grid;grid-template-columns:40px 1fr;grid-gap:6px 12px;gap:6px 12px}.hd-tg{grid-column:2;justify-self:start}.hd-bang{font-size:12.5px}.hd-cau,.hd-hai,.hd-meo{grid-template-columns:1fr}.hd-tai{flex-direction:column;align-items:stretch}.hd-tai-nut{justify-content:center}.hd-top .hd-mo{min-height:36px;padding:6px 12px}}