/* VLN trang SKU (đặc tả 4.4). REF: CSS bản duyệt, giới hạn trong .vln-sku */
.vln-sku{--red:#c42129;--ink:#232927;--muted:#727872;--line:#e7e8e3;font-family:Arial,Helvetica,sans-serif;color:var(--ink)}
.vln-sku h3{text-transform:none;color:var(--ink)}
.vln-sku .section-title{display:flex;justify-content:space-between;align-items:end;gap:15px;margin:40px 0 21px}
.vln-sku .muted{color:var(--muted);font-size:12px;line-height:1.6}
@media(max-width:700px){
.vln-sku .section-title{margin-top:30px;align-items:center}
.vln-sku .section-title>.muted{display:none}
}
.vln-sku .tech-request form>.muted{font-size:10px}
.vln-sku .sku-facts{display:grid;grid-template-columns:1fr 1fr;gap:25px 22px;padding:24px 0;border-top:1px solid #e6e8e3;border-bottom:1px solid #e6e8e3;margin:24px 0}
.vln-sku .sku-fact{display:flex;align-items:flex-start;gap:13px;min-width:0}
.vln-sku .sku-fact svg{width:30px;height:30px;flex:none;color:#4f5756}
.vln-sku .sku-fact strong{display:block;font-size:13px;margin:0 0 6px}
.vln-sku .sku-fact span{display:block;font-size:13px;line-height:1.65;overflow-wrap:anywhere;color:#606962}
.vln-sku .sku-fact.missing span{color:#959b94;font-size:12px}
.vln-sku .sku-fact.missing svg{color:#a1a8a0}
.vln-sku .sku-related{background:#f2f5f7;border-radius:14px;padding:24px;margin:25px 0}
.vln-sku .sku-related .section-title{margin:0 0 18px}
.vln-sku .sku-related h3,.vln-sku .sku-delivery h3,.vln-sku .sku-catalog h3{font-size:22px;margin:0}
.vln-sku .related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.vln-sku .sku-delivery{padding:15px 0 25px}
.vln-sku .delivery-empty{border:1px dashed #d5d9d2;border-radius:9px;background:#fafbf8;padding:26px;font-size:13px;color:#778171}
.vln-sku .delivery-empty small{display:block;font-size:11px;margin-top:9px;line-height:1.7}
.vln-sku .sku-catalog{border:1px solid #e1e5dc;border-radius:10px;padding:25px}
.vln-sku .sku-catalog>div{display:flex;gap:15px;align-items:center}
.vln-sku .sku-catalog svg{width:30px;height:30px;color:var(--red)}
.vln-sku .sku-catalog h3 small{display:block;font-size:12px;font-weight:400;color:#7d8578;margin-top:6px}
.vln-sku .catalog-download{display:flex;align-items:center;justify-content:space-between;padding:16px;border:1px solid #e3e5df;border-radius:6px;margin-top:15px;color:var(--red);font-size:13px}
@media(max-width:700px){
.vln-sku .sku-facts{gap:22px 15px;padding:20px 0;margin:20px 0}
.vln-sku .sku-fact{gap:9px}
.vln-sku .sku-fact svg{width:25px;height:25px}
.vln-sku .sku-fact strong{font-size:12px}
.vln-sku .sku-fact span{font-size:12px}
.vln-sku .sku-related{padding:16px;margin:20px 0}
.vln-sku .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.vln-sku .sku-related h3,.vln-sku .sku-delivery h3,.vln-sku .sku-catalog h3{font-size:20px}
.vln-sku .sku-catalog{padding:18px}
.vln-sku .delivery-empty{padding:20px;font-size:12px}
}
/* ---------- Điều chỉnh ---------- */
.vln-sku .related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
@media (max-width:849px){.vln-sku .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.vln-sku .muted{color:var(--muted);font-size:13px}
.vln-sku .delivery-empty{border:1px dashed #d8ddd2;border-radius:10px;padding:18px;color:#6d7767;font-size:13px}
.vln-sku .delivery-empty small{display:block;margin-top:6px;color:#959b94}
.vln-sku .delivery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.vln-sku .catalog-download{display:inline-flex;gap:8px;margin:12px 12px 0 0;padding:9px 14px;border:1px solid var(--red);border-radius:6px;color:var(--red);font-weight:600}
.vln-sku.container{padding-top:10px;padding-bottom:20px}
/* ---------- Thông số bắt buộc (13/10): thương hiệu, kích thước, tình trạng, trọng lượng, đóng gói ---------- */
.vln-sku .vln-spec{margin:22px 0;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:14px}
.vln-sku .spec-brand{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.vln-sku .spec-brand>span,.vln-sku .spec-row dt{color:var(--muted);font-weight:400}
.vln-sku .spec-brand>span{min-width:130px}
.vln-sku .brand-chip{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.vln-sku a.brand-chip:hover b{color:var(--red)}
.vln-sku .brand-chip b{font-size:15px}
.vln-sku .brand-logo{width:auto;max-width:96px;height:40px;object-fit:contain;border:1px solid var(--line);border-radius:6px;padding:4px 6px;background:#fff}
.vln-sku .brand-mono{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:6px;background:#f2f5f7;border:1px solid var(--line);font-weight:700;font-size:14px;color:#4f5756;letter-spacing:.5px}
.vln-sku .brand-chip.na b{font-weight:400;color:#959b94;font-size:13px}
.vln-sku .spec-list{margin:0;padding:0}
.vln-sku .spec-row{display:grid;grid-template-columns:minmax(130px,42%) 1fr;gap:12px;padding:7px 0;margin:0}
.vln-sku .spec-row dt,.vln-sku .spec-row dd{margin:0;font-size:14px;line-height:1.5}
.vln-sku .spec-row dd{color:var(--ink);font-weight:600;overflow-wrap:anywhere}
.vln-sku .spec-row dd.na{color:#9aa097;font-weight:400;font-style:italic;font-size:13px}
.vln-sku .spec-row dd.stock.in{color:#1e8a4c}
.vln-sku .spec-row dd.stock.out{color:var(--red)}
.vln-sku .spec-row dd.stock.back{color:#b06d00}
.vln-sku .spec-box{margin-top:16px;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.vln-sku .spec-box-t{background:#f2f5f7;padding:10px 14px;font-weight:700;font-size:14px}
.vln-sku .spec-box .spec-list{padding:6px 14px}
.vln-sku .spec-box .spec-row+.spec-row{border-top:1px dashed var(--line)}
@media(max-width:700px){
.vln-sku .vln-spec{margin:18px 0;padding:16px 0}
.vln-sku .spec-brand>span{min-width:0}
.vln-sku .spec-row{grid-template-columns:minmax(110px,45%) 1fr}
.vln-sku .spec-row dt,.vln-sku .spec-row dd{font-size:13px}
}
.vln-sku .spec-row dt,.vln-sku .spec-row dd,.vln-sku .spec-brand>span,.vln-sku .spec-box-t{text-transform:none;letter-spacing:0}