/* s4ba.css — Giao dien BA (dau trang kieu B + bang tra kieu A) cho NHOM DAU THUY LUC.
   Nguon: demo-giao-dien-v2/assets/BA.css (chu site duyet 23/10/2026), SCOPED tuyet doi duoi .s4ba
   (body class, chi them khi s4ba_active_here()). Token --s4-* / font dinh nghia o .s4ba, KHONG ro
   sang trang khac. Media query giu .s4ba o selector BEN TRONG (khong treo truoc @media). */
.s4ba{
  --s4-oxblood:#8C1C2B; --s4-oxblood-dark:#6E1522; --s4-ox-tint:#F6ECEC;
  --s4-charcoal:#17181B; --s4-charcoal2:#202228; --s4-ink:#2B2C30; --s4-ink2:#3C3D42;
  --s4-muted:#6B6C70; --s4-muted2:#A7A8AC;
  --s4-soft:#F7F6F4; --s4-border:#E4E2DD; --s4-cream2:#E9E7E3;
  --s4-copper:#B08D57; --s4-copper-l:#CBAE82; --s4-cop-tint:#F4EEE4;
  --s4-ok:#2E7D4F; --s4-ok-tint:#E9F3EC;
  --f-head:"Barlow Semi Condensed","Be Vietnam Pro",Arial,sans-serif;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
}
.s4ba .s4ba-main{font-family:var(--f-body);color:var(--s4-ink);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
.s4ba .s4ba-main *{box-sizing:border-box;min-width:0}
.s4ba .s4ba-main img{max-width:100%;height:auto;display:block}
.s4ba .s4ba-main a{color:var(--s4-oxblood);text-decoration:none}
.s4ba .s4ba-main button,.s4ba .s4ba-main input,.s4ba .s4ba-main select,.s4ba .s4ba-main textarea{font:inherit;color:inherit}
.s4ba .s4ba-main .sr-only{position:absolute;left:0;top:0;width:1px;height:1px;margin:-1px;padding:0;border:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.s4ba .s4ba-main [hidden]{display:none!important}
.s4ba .a-doc{display:flex;flex-wrap:wrap;gap:4px 14px;padding:8px 0;margin:0 0 14px;border-top:1px solid var(--s4-charcoal);border-bottom:1px solid var(--s4-border);font:500 11.5px/1.4 var(--f-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--s4-ink2)}
.s4ba .a-doc b{color:var(--s4-oxblood);font-weight:700}
.s4ba .a-pn{background:#fff;border:1px solid var(--s4-border);border-radius:4px}
.s4ba .a-sec{margin-top:28px}
.s4ba .a-sh{display:flex;align-items:baseline;gap:10px;padding-bottom:8px;margin-bottom:12px;border-bottom:1px solid var(--s4-border)}
.s4ba .a-sh .n{font:700 12px/1 var(--f-mono);color:var(--s4-copper)}
.s4ba .a-sh p{margin:0 0 0 auto;font-size:13px;color:var(--s4-muted)}
.s4ba .a-note{font-size:13px;color:var(--s4-muted);margin:8px 0 0;line-height:1.55}
.s4ba .a-note .ic{width:14px;height:14px;vertical-align:-2px;color:var(--s4-copper);margin-right:4px}
.s4ba .a-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;background:#fff;border:1px solid var(--s4-border);border-radius:4px;max-width:100%}
.s4ba .a-scroll:focus-visible{outline-offset:-2px}
.s4ba .a-tbl{width:100%;border-collapse:collapse;font-size:14px;line-height:1.45}
.s4ba .a-tbl th,.s4ba .a-tbl td{padding:10px 12px;text-align:left;vertical-align:top;border-bottom:1px solid var(--s4-border)}
.s4ba .a-tbl thead th{font:600 11px/1.3 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--s4-muted);background:#FBFAF8;white-space:nowrap}
.s4ba .a-tbl tbody tr:last-child td,.s4ba .a-tbl tbody tr:last-child th{border-bottom:0}
.s4ba .a-tbl tbody tr:hover td,.s4ba .a-tbl tbody tr:hover th{background:#FCFBF9}
.s4ba .a-tbl td.m,.s4ba .a-tbl th.m{font-family:var(--f-mono);font-size:13px;white-space:nowrap}
.s4ba .a-tbl .stk{position:sticky;left:0;background:#fff;z-index:1;box-shadow:1px 0 0 var(--s4-border)}
.s4ba .a-tbl thead .stk{background:#FBFAF8}
.s4ba .a-tbl .y{color:var(--s4-ok)}
.s4ba .a-tbl .y .ic,.s4ba .a-tbl .no .ic{width:18px;height:18px;display:inline-block;vertical-align:-4px}
.s4ba .a-tbl .no{color:#B9B7B1}
.s4ba .a-tbl .num{text-align:right;font-family:var(--f-mono);font-size:13px;white-space:nowrap}
.s4ba .a-tbl thead th.num{font:600 11px/1.3 var(--f-mono)}
.s4ba .a-tbl .px{font-family:var(--f-mono);font-size:13px;color:var(--s4-charcoal);font-weight:500;white-space:nowrap}
.s4ba .a-tbl .px small{font-size:11.5px;color:var(--s4-muted);font-weight:400}
.s4ba .a-tbl .px-q{font-family:var(--f-body);color:var(--s4-muted);white-space:normal}
.s4ba .a-min{min-width:560px}
.s4ba .a-tools{display:flex;flex-direction:column;gap:10px;margin:18px 0 10px}
.s4ba .a-chips{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.s4ba .a-chips button{flex:none;min-height:44px;padding:0 14px;border:1px solid var(--s4-border);background:#fff;border-radius:4px;font:500 13px/1 var(--f-mono);color:var(--s4-ink2);cursor:pointer}
.s4ba .a-chips button[aria-pressed="true"]{background:var(--s4-charcoal);border-color:var(--s4-charcoal);color:#fff}
.s4ba .a-chips button:hover{border-color:var(--s4-charcoal)}
.s4ba .a-search{display:flex;align-items:center;gap:8px}
.s4ba .a-search label{flex:none}
.s4ba .a-search input{flex:1;min-width:0;min-height:44px;padding:0 12px;border:1px solid var(--s4-border);border-radius:4px;background:#fff;font-family:var(--f-mono);font-size:14px}
.s4ba .a-count{font:500 12px/1 var(--f-mono);color:var(--s4-muted)}
.s4ba .a-cat .nm a{color:var(--s4-charcoal);font-weight:600;text-decoration:none}
.s4ba .a-cat .nm a:hover{color:var(--s4-oxblood);text-decoration:underline}
.s4ba .a-cat .gr{font:600 10.5px/1.3 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--s4-oxblood)}
.s4ba .a-cat .use{display:block;font-size:12.5px;color:var(--s4-muted);margin-top:2px}
@media(max-width:759px){.s4ba .a-cat{min-width:0}
.s4ba .a-cat thead{display:none}
.s4ba .a-cat tbody tr{display:grid;grid-template-columns:auto 1fr;gap:3px 10px;padding:12px;border-bottom:1px solid var(--s4-border)}
.s4ba .a-cat tbody tr[hidden]{display:none}
.s4ba .a-cat td{padding:0;border:0}
.s4ba .a-cat td.c-grp,.s4ba .a-cat td.c-nm,.s4ba .a-cat td.c-qc,.s4ba .a-cat td.c-px{grid-column:1/-1}
.s4ba .a-cat td.c-nm .use{font-size:12px}
.s4ba .a-cat td.c-cap,.s4ba .a-cat td.c-tc{font-size:12px;white-space:normal;color:var(--s4-ink2)}
.s4ba .a-cat td.c-cap:empty,.s4ba .a-cat td.c-tc:empty{display:none}
.s4ba .a-cat td.c-cap:empty + td.c-tc{grid-column:1/-1}
.s4ba .a-cat td.c-cap:not(:empty)::after{content:"·";margin-left:10px;color:var(--s4-muted2)}
.s4ba .a-cat td.c-qc{font-size:12.5px;color:var(--s4-muted)}
.s4ba .a-cat td.c-px .px{white-space:normal;font-size:13.5px;font-weight:700}
.s4ba .a-cat td.c-go{display:none}
}
@media(min-width:760px){.s4ba .a-cat td.c-cap:empty::after,.s4ba .a-cat td.c-tc:empty::after{content:"–";color:var(--s4-muted2)}
}
.s4ba .a-kv{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--s4-border);border-radius:4px;background:#fff;margin:16px 0 0}
.s4ba .a-kv div{padding:10px 12px;border-bottom:1px solid var(--s4-border);min-width:0}
.s4ba .a-kv div:nth-child(odd){border-right:1px solid var(--s4-border)}
.s4ba .a-kv dt{font:600 10.5px/1.3 var(--f-mono);letter-spacing:.07em;text-transform:uppercase;color:var(--s4-muted);margin:0 0 3px}
.s4ba .a-kv dd{margin:0;font:500 13.5px/1.4 var(--f-mono);color:var(--s4-charcoal);overflow-wrap:anywhere}
.s4ba .a-kv dd .px{font-family:var(--f-mono)}
.s4ba .a-kv dd small{color:var(--s4-muted);font-size:11.5px}
.s4ba .a-btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.s4ba .a-hero{display:grid;gap:16px}
.s4ba .a-media{margin:0}
.s4ba .a-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px;border:1px solid var(--s4-border)}
.s4ba .a-media figcaption{font-size:12px;color:var(--s4-muted);margin-top:6px}
.s4ba .a-seg{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--s4-charcoal);border-radius:4px;overflow:hidden;margin:16px 0 0}
.s4ba .a-seg button{min-height:48px;border:0;border-right:1px solid var(--s4-charcoal);background:#fff;font:700 14px/1 var(--f-mono);cursor:pointer;color:var(--s4-charcoal)}
.s4ba .a-seg button:last-child{border-right:0}
.s4ba .a-seg button[aria-pressed="true"]{background:var(--s4-charcoal);color:#fff}
.s4ba .a-gp{padding:14px;margin-top:-1px;border-top:0}
.s4ba .a-gp .row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed var(--s4-border);font-size:14px}
.s4ba .a-gp .row:last-of-type{border-bottom:0}
.s4ba .a-gp .row span:first-child{color:var(--s4-muted)}
.s4ba .a-gp .row span:last-child{font-family:var(--f-mono);text-align:right;color:var(--s4-charcoal)}
.s4ba .a-gp .row span.t{font-family:var(--f-body);font-size:13.5px;max-width:60%}
.s4ba .a-gp .big{font:700 22px/1.2 var(--f-mono);color:var(--s4-charcoal);margin:6px 0 2px;letter-spacing:-.02em}
.s4ba .a-gp .big small{font-size:13px;color:var(--s4-muted);font-weight:500}
.s4ba .a-gp .big.px-q{font:600 17px/1.3 var(--f-body);color:var(--s4-ink2)}
.s4ba .a-call{border:1px solid var(--s4-border);border-left:3px solid var(--s4-copper);background:#fff;border-radius:4px;padding:14px 16px}
.s4ba .a-call h3{font-size:16px;margin-bottom:6px;display:flex;gap:8px;align-items:center}
.s4ba .a-call h3 .ic{width:18px;height:18px;color:var(--s4-copper)}
.s4ba .a-call p:last-child{margin-bottom:0}
.s4ba .a-faq{border:1px solid var(--s4-border);border-radius:4px;background:#fff}
.s4ba .a-faq details{border-bottom:1px solid var(--s4-border)}
.s4ba .a-faq details:last-child{border-bottom:0}
.s4ba .a-faq summary{list-style:none;cursor:pointer;display:flex;gap:10px;align-items:flex-start;padding:14px;min-height:48px;font-weight:600;color:var(--s4-charcoal)}
.s4ba .a-faq summary::-webkit-details-marker{display:none}
.s4ba .a-faq summary .q{font:700 12px/1.6 var(--f-mono);color:var(--s4-copper);flex:none}
.s4ba .a-faq summary::after{content:"+";margin-left:auto;font:500 18px/1 var(--f-mono);color:var(--s4-muted)}
.s4ba .a-faq details[open] summary::after{content:"−"}
.s4ba .a-faq .ans{padding:0 14px 14px 40px;font-size:15px;color:var(--s4-ink2)}
.s4ba .a-faq .ans p:last-child{margin:0}
.s4ba .a-by{display:flex;gap:12px;align-items:flex-start;font-size:13.5px;color:var(--s4-ink2);padding:12px 14px}
.s4ba .a-by b{color:var(--s4-charcoal)}
.s4ba .a-by .ic{width:22px;height:22px;color:var(--s4-oxblood);flex:none;margin-top:2px}
.s4ba .a-ct{display:grid;gap:0}
.s4ba .a-ct > div{padding:14px;border-bottom:1px solid var(--s4-border)}
.s4ba .a-ct > div:last-child{border-bottom:0}
.s4ba .a-ct .tel{font:700 20px/1.2 var(--f-mono);color:var(--s4-charcoal);text-decoration:none}
.s4ba .a-rel a{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--s4-border);text-decoration:none;color:var(--s4-charcoal);min-height:52px}
.s4ba .a-rel a:last-child{border-bottom:0}
.s4ba .a-rel a:hover{background:#FCFBF9}
.s4ba .a-rel .nm{font-weight:600}
.s4ba .a-rel .sub{display:block;font:500 12px/1.4 var(--f-mono);color:var(--s4-muted)}
.s4ba .a-rel .ic{width:18px;height:18px;flex:none;color:var(--s4-oxblood)}
.s4ba .a-two{display:grid;gap:16px}
.s4ba .a-two>*,.s4ba .a-side>*,.s4ba .a-hero>*{min-width:0}
.s4ba .a-list{margin:0;padding-left:18px}
.s4ba .a-list li{margin:0 0 6px}
@media(min-width:760px){.s4ba .vA{padding-top:22px}
.s4ba .vA h1{font-size:40px}
.s4ba .vA h2{font-size:24px}
.s4ba .a-tools{flex-direction:row;align-items:center;justify-content:space-between}
.s4ba .a-chips{flex-wrap:wrap;overflow:visible}
.s4ba .a-search{min-width:320px}
.s4ba .a-kv{grid-template-columns:repeat(3,1fr)}
.s4ba .a-kv div:nth-child(odd){border-right:0}
.s4ba .a-kv div{border-right:1px solid var(--s4-border)}
.s4ba .a-kv div:nth-child(3n){border-right:0}
.s4ba .a-two{grid-template-columns:1fr 1fr}
.s4ba .a-ct{grid-template-columns:repeat(3,1fr)}
.s4ba .a-ct > div{border-bottom:0;border-right:1px solid var(--s4-border)}
.s4ba .a-ct > div:last-child{border-right:0}
}
@media(min-width:1024px){.s4ba .vA h1{font-size:44px}
.s4ba .a-hero{grid-template-columns:5fr 7fr;gap:28px;align-items:start}
.s4ba .a-kv.k6{grid-template-columns:repeat(6,1fr)}
.s4ba .a-kv.k6 div{border-bottom:0;border-right:1px solid var(--s4-border)}
.s4ba .a-kv.k6 div:last-child{border-right:0}
.s4ba .a-side{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:start}
.s4ba .a-sticky{position:sticky;top:16px}
}
.s4ba .vB{background:#fff;color:var(--s4-ink);padding-bottom:0}
.s4ba .vB .w{max-width:1200px;margin:0 auto;padding:0 16px}
.s4ba .vB h1,.s4ba .vB h2,.s4ba .vB h3{font-family:var(--f-head);margin:0;color:var(--s4-charcoal);letter-spacing:-.005em}
.s4ba .vB h1{font-size:34px;line-height:1.05;font-weight:700;text-wrap:balance}
.s4ba .vB h2{font-size:26px;line-height:1.15;font-weight:700}
.s4ba .vB h3{font-size:19px;line-height:1.2;font-weight:600}
.s4ba .vB p{margin:0 0 12px}
.s4ba .b-kick{display:inline-block;font:700 12px/1.2 var(--f-body);letter-spacing:.12em;text-transform:uppercase;color:var(--s4-oxblood);margin:0 0 8px}
.s4ba .b-sec{padding:40px 0}
.s4ba .b-sec.alt{background:var(--s4-soft)}
.s4ba .b-sh{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:8px 16px;margin-bottom:18px}
.s4ba .b-sh p{margin:6px 0 0;color:var(--s4-muted);max-width:60ch}
.s4ba .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 20px;border-radius:8px;font:700 16px/1 var(--f-head);text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background-color .15s,border-color .15s,color .15s}
.s4ba .btn .ic{width:18px;height:18px}
.s4ba .btn-ox{background:var(--s4-oxblood);color:#fff!important}
.s4ba .btn-ox:hover{background:var(--s4-oxblood-dark)}
.s4ba .btn-line{background:#fff;border-color:var(--s4-border);color:var(--s4-charcoal)!important}
.s4ba .btn-line:hover{border-color:var(--s4-charcoal)}
.s4ba .btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff!important}
.s4ba .btn-ghost:hover{background:rgba(255,255,255,.1)}
.s4ba .btn-zalo{background:#0068FF;color:#fff!important}
.s4ba .btn-zalo:hover{background:#0053cc}
.s4ba .px-dl{margin-top:10px;padding:12px 14px;background:var(--s4-cop-tint);border:1px solid #E6DAC6;border-radius:8px;font-size:14px;color:var(--s4-ink)}
.s4ba .px-dl p{margin:0}
.s4ba .px-note{font-size:12.5px;color:var(--s4-muted);margin:6px 0 0}
.s4ba .b-hero{background:var(--s4-charcoal);padding:16px 0 0;color:#EDEDEF}
.s4ba .b-hero-card{position:relative;border-radius:14px;overflow:hidden;min-height:420px;display:flex;align-items:flex-end}
.s4ba .b-hero-card>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.s4ba .b-hero-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,24,27,.15) 0%,rgba(23,24,27,.55) 45%,rgba(23,24,27,.92) 100%)}
.s4ba .b-hero-in{position:relative;z-index:1;padding:22px 18px}
.s4ba .b-hero .s4n-rmbc,.s4ba .b-hero .s4n-rmbc a,.s4ba .b-hero .s4n-rmbc .last{color:#D5D6D9}
.s4ba .b-tag{display:inline-block;background:var(--s4-oxblood);color:#fff;font:700 12px/1 var(--f-body);letter-spacing:.06em;text-transform:uppercase;padding:7px 10px;border-radius:6px;margin-bottom:12px}
.s4ba .b-hero h1{color:#fff}
.s4ba .b-hero p.sub{color:#E3E4E6;font-size:16px;margin:12px 0 0;max-width:60ch}
.s4ba .b-hero .btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.s4ba .b-hero .btns .btn{flex:1 1 180px}
.s4ba .b-hero .btns .px-dl{flex-basis:100%}
.s4ba .b-pr-chip{display:inline-flex;flex-wrap:wrap;gap:4px 8px;align-items:baseline;margin-top:14px;padding:8px 12px;border-radius:8px;background:rgba(23,24,27,.7);border:1px solid #3A3C42;font-size:13px;color:#C9CBD0}
.s4ba .b-pr-chip .px{font:700 18px/1.2 var(--f-head);color:#fff}
.s4ba .b-pr-chip .px small{font:500 12px var(--f-body);color:#B9BCC2}
.s4ba .b-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:16px 0 24px}
.s4ba .b-st{background:#202228;border:1px solid #33363D;border-radius:10px;padding:12px}
.s4ba .b-st b{display:block;font:700 28px/1 var(--f-head);color:#fff}
.s4ba .b-st b em{font-style:normal;color:var(--s4-copper-l)}
.s4ba .b-st span{display:block;font-size:12.5px;color:#B9BCC2;margin-top:6px;line-height:1.35}
.s4ba .b-tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.s4ba .b-tile{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:170px;border-radius:12px;overflow:hidden;text-decoration:none;color:#fff;background:var(--s4-charcoal)}
.s4ba .b-tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .3s}
.s4ba .b-tile:hover img{transform:scale(1.03)}
.s4ba .b-tile::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,24,27,0) 30%,rgba(23,24,27,.9) 100%)}
.s4ba .b-tile .t{position:relative;z-index:1;padding:12px}
.s4ba .b-tile b{display:block;font:700 18px/1.15 var(--f-head)}
.s4ba .b-tile span{display:block;font-size:12.5px;color:#E3E4E6;margin-top:4px;line-height:1.35}
.s4ba .b-tile.plain{background:var(--s4-soft);border:1px solid var(--s4-border);border-top:3px solid var(--s4-oxblood);color:var(--s4-charcoal)}
@media(max-width:639px){.s4ba .b-tile.plain{min-height:132px}
}
.s4ba .b-tile.plain::after{display:none}
.s4ba .b-tile.plain span{color:var(--s4-muted)}
.s4ba .b-tile.plain .ic{width:28px;height:28px;color:var(--s4-oxblood);margin:12px 12px auto}
.s4ba .b-tabs{display:flex;gap:6px;overflow-x:auto;border-bottom:1px solid var(--s4-border);margin-bottom:18px;scrollbar-width:thin}
.s4ba .b-tabs button{flex:none;min-height:48px;padding:0 16px;border:0;border-bottom:3px solid transparent;background:transparent;font:700 16px/1 var(--f-head);color:var(--s4-muted);cursor:pointer}
.s4ba .b-tabs button[aria-selected="true"]{color:var(--s4-charcoal);border-bottom-color:var(--s4-oxblood)}
.s4ba .b-banner{position:relative;border-radius:12px;overflow:hidden;margin-bottom:14px;min-height:140px;display:flex;align-items:flex-end;background:var(--s4-charcoal)}
.s4ba .b-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.s4ba .b-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(23,24,27,.88),rgba(23,24,27,.25))}
.s4ba .b-banner p{position:relative;z-index:1;margin:0;padding:14px 16px;color:#fff;font-size:14.5px;max-width:52ch}
.s4ba .b-banner p b{font:700 18px/1.2 var(--f-head);display:block;margin-bottom:4px}
.s4ba .b-grid{display:grid;grid-template-columns:1fr;gap:12px}
.s4ba .b-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--s4-border);border-radius:12px;overflow:hidden;min-width:0}
.s4ba .b-card .ph{aspect-ratio:16/10;background:var(--s4-soft);overflow:hidden}
.s4ba .b-card .ph img{width:100%;height:100%;object-fit:cover}
.s4ba .b-card .bd{padding:14px;display:flex;flex-direction:column;gap:8px;flex:1}
.s4ba .b-card .gr{font:700 11.5px/1.2 var(--f-body);letter-spacing:.08em;text-transform:uppercase;color:var(--s4-oxblood)}
.s4ba .b-card h3 a{color:var(--s4-charcoal);text-decoration:none}
.s4ba .b-card h3 a:hover{color:var(--s4-oxblood)}
.s4ba .b-chips{display:flex;flex-wrap:wrap;gap:6px}
.s4ba .b-chips span{font:500 12.5px/1 var(--f-mono);padding:6px 8px;border-radius:6px;background:var(--s4-soft);border:1px solid var(--s4-border);color:var(--s4-ink2)}
.s4ba .b-pack{display:flex;gap:8px;align-items:center;font-size:13.5px;color:var(--s4-ink2)}
.s4ba .b-pack .ic{width:20px;height:20px;color:var(--s4-copper);flex:none}
.s4ba .b-price{margin-top:auto;padding-top:10px;border-top:1px dashed var(--s4-border)}
.s4ba .b-price .px{display:block;font:700 22px/1.2 var(--f-head);color:var(--s4-charcoal);letter-spacing:-.01em}
.s4ba .b-price .px small{font:500 13px var(--f-body);color:var(--s4-muted)}
.s4ba .b-price .px.px-q{font:600 17px/1.3 var(--f-head);color:var(--s4-ink2)}
.s4ba .b-act{display:flex;gap:8px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.s4ba .b-chk{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-size:14px;font-weight:600;color:var(--s4-charcoal);cursor:pointer}
.s4ba .b-chk input{width:20px;height:20px;accent-color:var(--s4-oxblood);margin:0}
.s4ba .b-more{font-weight:700;font-size:14px;color:var(--s4-oxblood);text-decoration:none;display:inline-flex;align-items:center;gap:6px;min-height:44px}
.s4ba .b-more .ic{width:16px;height:16px}
.s4ba .b-card.row{flex-direction:row}
.s4ba .b-card.noimg .bd{padding-top:16px}
.s4ba .b-log{background:var(--s4-charcoal);color:#D5D6D9}
.s4ba .b-log h2{color:#fff}
.s4ba .b-log .grid{display:grid;gap:16px}
.s4ba .b-log figure{margin:0;border-radius:12px;overflow:hidden}
.s4ba .b-log figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.s4ba .b-log figcaption{font-size:12px;color:#A7A8AC;padding:6px 2px 0}
.s4ba .b-kho{display:grid;gap:10px;margin-top:14px}
.s4ba .b-kho div{display:flex;gap:10px;background:#202228;border:1px solid #33363D;border-radius:10px;padding:12px}
.s4ba .b-kho .ic{width:20px;height:20px;color:var(--s4-copper-l);flex:none;margin-top:2px}
.s4ba .b-kho b{color:#fff;display:block;font-weight:600}
.s4ba .b-kho a{color:#fff;font:700 18px/1.3 var(--f-head);text-decoration:none}
.s4ba .b-quote{display:grid;gap:16px}
.s4ba .b-qbox{background:#fff;border:1px solid var(--s4-border);border-radius:12px;padding:16px}
.s4ba .b-qbox h3{margin-bottom:10px}
.s4ba #qlist{margin:0;padding:0;list-style:none}
.s4ba #qlist li{padding:10px 0;border-bottom:1px solid var(--s4-border);font-weight:600;font-size:14.5px}
.s4ba #qlist li.empty{font-weight:400;color:var(--s4-muted)}
.s4ba .b-form{display:grid;gap:12px}
.s4ba .b-form label{display:block;font-size:13.5px;font-weight:600;color:var(--s4-charcoal);margin-bottom:5px}
.s4ba .b-form input,.s4ba .b-form select,.s4ba .b-form textarea{width:100%;min-height:48px;padding:10px 12px;border:1px solid #CFCCC5;border-radius:8px;background:#fff;font-size:16px}
.s4ba .b-form textarea{min-height:90px;resize:vertical}
.s4ba .b-form .two{display:grid;gap:12px}
.s4ba .b-form .hint{font-size:12.5px;color:var(--s4-muted);margin:4px 0 0}
.s4ba .b-form button[disabled]{opacity:.55;cursor:not-allowed}
.s4ba .b-soon{font-size:12.5px;color:var(--s4-muted);background:var(--s4-soft);border:1px dashed #CFCCC5;border-radius:8px;padding:8px 10px}
.s4ba .b-pd{display:grid;gap:18px;padding:16px 0 8px}
.s4ba .b-gal .main{border-radius:12px;overflow:hidden;background:var(--s4-soft);aspect-ratio:4/3}
.s4ba .b-gal .main img{width:100%;height:100%;object-fit:cover}
.s4ba .b-gal .th{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px}
.s4ba .b-gal .th button{padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;cursor:pointer;aspect-ratio:1;background:none;min-height:44px}
.s4ba .b-gal .th button[aria-pressed="true"]{border-color:var(--s4-oxblood)}
.s4ba .b-gal .th img{width:100%;height:100%;object-fit:cover}
.s4ba .b-gal figcaption{font-size:12px;color:var(--s4-muted);margin-top:6px}
.s4ba .b-buy .brand{font-size:13px;color:var(--s4-muted);margin-bottom:6px}
.s4ba .b-buy .brand b{color:var(--s4-charcoal)}
.s4ba .b-buy .lead{color:var(--s4-ink2);margin:10px 0 0}
.s4ba .b-stock{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:6px 12px;border-radius:999px;background:var(--s4-ok-tint);color:var(--s4-ok);font-size:13.5px;font-weight:600}
.s4ba .b-stock .ic{width:16px;height:16px}
.s4ba .b-gsel{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0 10px}
.s4ba .b-gsel button{min-height:48px;border:1px solid var(--s4-border);border-radius:8px;background:#fff;font:700 16px/1 var(--f-head);cursor:pointer;color:var(--s4-charcoal)}
.s4ba .b-gsel button[aria-pressed="true"]{border:2px solid var(--s4-oxblood);background:var(--s4-ox-tint);color:var(--s4-oxblood)}
.s4ba .b-packs{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.s4ba .b-pk{border:1px solid var(--s4-border);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:6px;background:#fff}
.s4ba .b-pk .ic{width:28px;height:28px;color:var(--s4-copper)}
.s4ba .b-pk .l{font-weight:700;color:var(--s4-charcoal)}
.s4ba .b-pk .px{font:700 21px/1.15 var(--f-head);color:var(--s4-charcoal)}
.s4ba .b-pk .px small{display:none}
.s4ba .b-pk .px.px-q{font:600 15px/1.3 var(--f-body);color:var(--s4-ink2)}
.s4ba .b-buy .btns{display:grid;gap:8px;margin-top:14px}
.s4ba .b-buy .btns .row2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.s4ba .b-ship{display:grid;gap:6px;margin-top:14px;padding:12px;border-radius:10px;background:var(--s4-soft);font-size:13.5px;color:var(--s4-ink2)}
.s4ba .b-ship div{display:flex;gap:8px}
.s4ba .b-ship .ic{width:16px;height:16px;color:var(--s4-oxblood);flex:none;margin-top:3px}
.s4ba .b-use{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.s4ba .b-use div{border:1px solid var(--s4-border);border-radius:12px;padding:14px;background:#fff}
.s4ba .b-use b{display:block;font:700 24px/1 var(--f-head);color:var(--s4-oxblood)}
.s4ba .b-use span{display:block;font-size:14px;color:var(--s4-ink2);margin-top:6px;line-height:1.4}
.s4ba .b-use em{display:block;font-style:normal;font:500 12px var(--f-mono);color:var(--s4-muted);margin-top:6px}
.s4ba .b-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--s4-border);border-radius:12px;background:#fff;max-width:100%}
.s4ba .b-tbl{width:100%;border-collapse:collapse;font-size:14.5px;min-width:560px}
.s4ba .b-tbl th,.s4ba .b-tbl td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--s4-border);vertical-align:top}
.s4ba .b-tbl thead th{background:var(--s4-charcoal);color:var(--s4-copper-l);font-size:12.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}
.s4ba .b-tbl tbody tr:last-child>*{border-bottom:0}
.s4ba .b-tbl .m{font-family:var(--f-mono);font-size:13.5px;white-space:nowrap}
.s4ba .b-tbl .stk{position:sticky;left:0;background:#fff;box-shadow:1px 0 0 var(--s4-border)}
.s4ba .b-tbl thead .stk{background:var(--s4-charcoal)}
.s4ba .b-tbl .px{white-space:nowrap}
.s4ba .b-tbl .px small{color:var(--s4-muted);font-size:12px}
.s4ba .b-tbl .y{color:var(--s4-ok);font-weight:700}
.s4ba .b-tbl .no{color:#B9B7B1}
.s4ba .b-tbl .y .ic,.s4ba .b-tbl .no .ic{width:18px;height:18px;display:inline-block;vertical-align:-4px}
.s4ba .b-call{border-radius:12px;background:var(--s4-cop-tint);border:1px solid #E6DAC6;padding:16px}
.s4ba .b-call h3{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:18px}
.s4ba .b-call h3 .ic{width:20px;height:20px;color:var(--s4-copper)}
.s4ba .b-call p:last-child{margin:0}
.s4ba .b-faq details{border:1px solid var(--s4-border);border-radius:12px;background:#fff;margin-bottom:8px}
.s4ba .b-faq summary{list-style:none;cursor:pointer;padding:14px 16px;min-height:52px;display:flex;align-items:center;gap:12px;font:600 18px/1.25 var(--f-head);color:var(--s4-charcoal)}
.s4ba .b-faq summary::-webkit-details-marker{display:none}
.s4ba .b-faq summary::after{content:"";margin-left:auto;flex:none;width:10px;height:10px;border-right:2px solid var(--s4-oxblood);border-bottom:2px solid var(--s4-oxblood);transform:rotate(45deg);transition:transform .2s}
.s4ba .b-faq details[open] summary::after{transform:rotate(-135deg)}
.s4ba .b-faq .ans{padding:0 16px 14px;color:var(--s4-ink2)}
.s4ba .b-faq .ans p:last-child{margin:0}
.s4ba .b-howto{display:grid;gap:16px;align-items:start}
.s4ba .b-howto figure{margin:0;border-radius:12px;overflow:hidden;max-width:360px}
.s4ba .b-howto figure img{width:100%;aspect-ratio:3/4;object-fit:cover}
.s4ba .b-steps{counter-reset:s;list-style:none;margin:0;padding:0;display:grid;gap:10px}
.s4ba .b-steps li{counter-increment:s;display:grid;grid-template-columns:36px 1fr;gap:12px;padding:14px;border:1px solid var(--s4-border);border-radius:12px;background:#fff}
.s4ba .b-steps li::before{content:counter(s);width:36px;height:36px;border-radius:50%;background:var(--s4-oxblood);color:#fff;font:700 18px/36px var(--f-head);text-align:center}
.s4ba .b-steps b{display:block;color:var(--s4-charcoal);font-family:var(--f-head);font-size:18px}
@media(min-width:640px){.s4ba .b-grid{grid-template-columns:1fr 1fr}
.s4ba .b-tiles{grid-template-columns:repeat(3,1fr)}
.s4ba .b-form .two{grid-template-columns:1fr 1fr}
.s4ba .b-kho{grid-template-columns:1fr 1fr}
.s4ba .b-use{grid-template-columns:repeat(4,1fr)}
}
@media(min-width:1024px){.s4ba .vB h1{font-size:52px}
.s4ba .vB h2{font-size:34px}
.s4ba .b-sec{padding:56px 0}
.s4ba .b-hero{padding-top:18px}
.s4ba .b-hero-card{min-height:520px}
.s4ba .b-hero-in{padding:40px 44px;max-width:760px}
.s4ba .b-stats{grid-template-columns:repeat(6,1fr);gap:12px}
.s4ba .b-st b{font-size:36px}
.s4ba .b-tiles{grid-template-columns:repeat(6,1fr)}
.s4ba .b-tile{min-height:240px}
.s4ba .b-grid{grid-template-columns:repeat(3,1fr);gap:16px}
.s4ba .b-log .grid{grid-template-columns:1.1fr 1fr 1fr;align-items:start}
.s4ba .b-quote{grid-template-columns:1fr 1.4fr;gap:24px}
.s4ba .b-pd{grid-template-columns:1.1fr 1fr;gap:36px;padding-top:24px}
.s4ba .b-howto{grid-template-columns:320px 1fr;gap:28px}
.s4ba .b-two{display:grid;grid-template-columns:1fr 1fr;gap:24px}
}
.s4ba .b-two>*,.s4ba .b-pd>*,.s4ba .b-quote>*,.s4ba .b-log .grid>*,.s4ba .b-howto>*{min-width:0}
.s4ba .vB .m{font-family:var(--f-mono);font-size:.92em;letter-spacing:-.01em}
.s4ba .vB .k{font:600 11px/1.3 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--s4-muted)}
.s4ba .vB .a-scroll,.s4ba .vB .a-kv,.s4ba .vB .a-pn,.s4ba .vB .a-faq{border-radius:12px}
.s4ba .vB .a-sh h2{font-size:24px}
.s4ba .vB .a-note{font-size:13.5px}
@media(max-width:759px){.s4ba .a-stack{min-width:0!important}
.s4ba .a-stack thead{display:none}
.s4ba .a-stack tbody tr{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px;padding:12px 14px;border-bottom:1px solid var(--s4-border)}
.s4ba .a-stack tbody tr:last-child{border-bottom:0}
.s4ba .a-stack tbody tr>*{padding:0;border:0;text-align:left!important;white-space:normal!important}
.s4ba .a-stack tbody tr>th{grid-column:1/-1;font:700 15px/1.3 var(--f-body);color:var(--s4-charcoal);position:static!important;box-shadow:none!important;background:none!important}
.s4ba .a-stack tbody tr>td::before{content:attr(data-l);display:block;font:600 10.5px/1.3 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--s4-muted);margin-bottom:2px}
.s4ba .a-stack tbody tr>td.w2{grid-column:1/-1}
.s4ba .a-stack .y,.s4ba .a-stack .no{display:flex;flex-direction:column}
.s4ba .a-stack.s3 tbody tr{grid-template-columns:repeat(3,1fr)}
}
.s4ba .ba-cats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.s4ba .ba-cat{display:flex;flex-direction:column;background:#fff;border:1px solid var(--s4-border);border-radius:12px;overflow:hidden;text-decoration:none;color:var(--s4-charcoal);min-width:0}
.s4ba .ba-cat:hover{border-color:var(--s4-oxblood)}
.s4ba .ba-cat .ph{aspect-ratio:16/10;overflow:hidden;background:var(--s4-soft)}
.s4ba .ba-cat .ph img{width:100%;height:100%;object-fit:cover}
.s4ba .ba-cat .bd{padding:10px 12px 12px;display:flex;flex-direction:column;gap:4px;flex:1}
.s4ba .ba-cat b{font:700 17px/1.2 var(--f-head)}
.s4ba .ba-cat .n{font:500 12px/1.3 var(--f-mono);color:var(--s4-muted)}
.s4ba .ba-cat .d{font-size:12.5px;color:var(--s4-ink2);line-height:1.4}
.s4ba .ba-cat .px{margin-top:auto;padding-top:6px;font:700 15px/1.3 var(--f-head);color:var(--s4-charcoal)}
.s4ba .ba-cat .px small{font:500 11.5px var(--f-body);color:var(--s4-muted)}
.s4ba .ba-cat .px.px-q{font:600 13.5px/1.3 var(--f-body);color:var(--s4-ink2)}
.s4ba .ba-cat.on{border:2px solid var(--s4-oxblood)}
.s4ba .ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.s4ba .ba-p{display:flex;flex-direction:column;background:#fff;border:1px solid var(--s4-border);border-radius:12px;overflow:hidden;min-width:0}
.s4ba .ba-p .ph{display:block;aspect-ratio:1;background:var(--s4-charcoal)}
.s4ba .ba-p .ph img{width:100%;height:100%;object-fit:cover}
.s4ba .ba-p .bd{padding:10px 10px 12px;display:flex;flex-direction:column;gap:5px;flex:1}
.s4ba .ba-p .gr{font:700 10.5px/1.2 var(--f-body);letter-spacing:.07em;text-transform:uppercase;color:var(--s4-oxblood)}
.s4ba .ba-p h3{font:600 15.5px/1.25 var(--f-head);margin:0}
.s4ba .ba-p h3 a{color:var(--s4-charcoal);text-decoration:none}
.s4ba .ba-p h3 a:hover{color:var(--s4-oxblood)}
.s4ba .ba-p .cap{font:500 12px/1.3 var(--f-mono);color:var(--s4-ink2)}
.s4ba .ba-p .pr{margin-top:auto;padding-top:6px;border-top:1px dashed var(--s4-border)}
.s4ba .ba-p .px{display:block;font:700 15px/1.3 var(--f-head);color:var(--s4-charcoal)}
.s4ba .ba-p .px small{font:500 11.5px var(--f-body);color:var(--s4-muted)}
.s4ba .ba-p .px.px-q{font:600 13.5px/1.3 var(--f-body);color:var(--s4-ink2)}
.s4ba .ba-p .b-chk{min-height:44px;font-size:13px;gap:8px}
.s4ba .ba-more{display:flex;justify-content:center;margin-top:14px}
.s4ba .ba-more .btn{min-width:240px}
@media(min-width:640px){.s4ba .ba-cats{grid-template-columns:repeat(3,1fr)}
.s4ba .ba-grid{grid-template-columns:repeat(3,1fr);gap:12px}
}
@media(min-width:1024px){.s4ba .ba-grid{grid-template-columns:repeat(4,1fr);gap:16px}
.s4ba .ba-p h3{font-size:17px}
.s4ba .ba-p .px{font-size:17px}
.s4ba .ba-p .bd{padding:12px 14px 14px}
}


/* ===== S4BA — bo sung: breadcrumb, o giu cho anh, khoi khong gia, phieu ===== */
.s4ba .s4ba-bc{font:500 13px/1.4 var(--f-body);color:var(--s4-muted);margin:0 0 4px;display:flex;flex-wrap:wrap;gap:4px 6px;align-items:center}
.s4ba .s4ba-bc a{color:var(--s4-muted)}
.s4ba .s4ba-bc a:hover{color:var(--s4-oxblood)}
.s4ba .s4ba-bc .sep{color:var(--s4-muted2)}
.s4ba .s4ba-bc .last{color:var(--s4-ink2);font-weight:600}
.s4ba .b-hero .s4ba-bc,.s4ba .b-hero .s4ba-bc a,.s4ba .b-hero .s4ba-bc .last{color:#D5D6D9}
.s4ba .b-hero .s4ba-bc a:hover{color:#fff}

/* o giu cho anh (card chuyen muc + anh chinh SP) — khung sach, KHONG anh Weebly cu */
.s4ba .ba-p .ph-empty{display:flex;align-items:center;justify-content:center;background:var(--s4-soft);border-bottom:1px solid var(--s4-border)}
.s4ba .s4ba-ph{display:flex;align-items:center;justify-content:center;background:var(--s4-soft);border:1px dashed var(--s4-border)}
.s4ba .ph-in{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--s4-muted);text-align:center;padding:14px;font:500 12.5px/1.35 var(--f-mono);letter-spacing:.02em}
.s4ba .ph-in .ic{width:34px;height:34px;color:var(--s4-copper)}
.s4ba .s4ba-ph .ph-in .ic{width:48px;height:48px}

/* SP khong co gia cong bo */
.s4ba .s4ba-noprice{margin:14px 0 0;padding:12px 14px;border:1px solid var(--s4-border);border-left:3px solid var(--s4-oxblood);border-radius:10px;background:var(--s4-soft)}
.s4ba .s4ba-noprice b{display:block;font:700 18px/1.2 var(--f-head);color:var(--s4-charcoal)}
.s4ba .s4ba-noprice span{display:block;font-size:13.5px;color:var(--s4-ink2);margin-top:3px}

/* chua day cho nut noi Zalo/Goi (KHONG them thanh dinh day) */
.s4ba .s4ba-main{padding-bottom:84px}
@media(min-width:1024px){.s4ba .s4ba-main{padding-bottom:0}}

/* trang thai hop «Nhan gia dai ly» (toggle .open) + honeypot form */
.s4ba .px-dl{display:none}
.s4ba .px-dl.open{display:block}
.s4ba .b-form{position:relative}

/* An toolbar WooCommerce/Flatsome thua trong shop-header khi BA active (body.s4ba):
   result-count «Showing 1-12 of 15 results», o «Default sorting», phan trang mac dinh.
   BA da co luoi 15 SP rieng + chip loc rieng. Scoped .s4ba (CSS chi nap khi BA active) ->
   KHONG anh huong nhom khac. Rollback = tat co S4BA_THUYLUC (het nap CSS nay). */
.s4ba .woocommerce-result-count,
.s4ba .woocommerce-ordering,
.s4ba nav.woocommerce-pagination{display:none!important}