/* Huy Hoàng hhcam v3 | token khoá: spacing bội 8, bo 4/8/16/24, header 72 */
:root{
  --night:#0D0F12;      /* gợi ý thêm: nền hero sâu hơn than */
  --ink:#1E1E1E; --ink-2:#4A4A4A; --mute:#7A7A7A;
  --paper:#F2F2F2; --white:#FFFFFF; --line:#E2E2DE;
  --gold:#E9A92B; --ember:#C8571B;
  --r1:4px; --r2:8px; --r3:16px; --r4:24px;
  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:64px; --s7:96px; --s8:128px;
  --head:72px; --wrap:1240px;
  --f-display:"Archivo",system-ui,sans-serif;
  --f-body:"Be Vietnam Pro",system-ui,sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--f-body);color:var(--ink);background:var(--paper);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--s3)}
.display{font-family:var(--f-display);font-stretch:118%;letter-spacing:-.02em;line-height:1.02;font-weight:800}
.eyebrow{font-family:var(--f-display);font-stretch:112%;font-weight:600;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--ember)}
.dark .eyebrow{color:var(--gold)}

/* ===== Header ===== */
.hdr{position:fixed;inset:0 0 auto 0;height:var(--head);z-index:50;transition:background .4s var(--ease),box-shadow .4s var(--ease)}
.hdr.solid{background:rgba(13,15,18,.86);backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);box-shadow:0 1px 0 rgba(255,255,255,.06)}
.hdr .wrap{height:100%;display:flex;align-items:center;gap:var(--s4)}
.hdr .logo{flex:none;display:block}
.hdr .logo img{height:40px;width:123px}
.nav{display:flex;gap:var(--s3);margin-left:auto}
.nav a{color:rgba(255,255,255,.78);font-size:14px;font-weight:500;padding:var(--s1) 0;position:relative;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.nav a:hover,.nav a.on{color:#fff}.nav a:hover::after,.nav a.on::after{transform:scaleX(1)}
.hdr-call{display:flex;align-items:center;gap:var(--s1);background:var(--gold);color:var(--ink);font-weight:700;font-size:14px;padding:10px 16px;border-radius:999px;white-space:nowrap;transition:transform .2s var(--ease),background .2s}
.hdr-call:hover{background:#f2b93f}.hdr-call:active{transform:scale(.97)}
.burger{display:none;width:40px;height:40px;border-radius:var(--r2);color:#fff}
.burger span{display:block;width:20px;height:2px;background:#fff;margin:5px auto;transition:transform .3s var(--ease),opacity .2s}
.search{position:relative}
.search input{width:220px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);color:#fff;padding:0 16px 0 40px;font:inherit;font-size:14px;outline:none;transition:border-color .2s,width .35s var(--ease)}
.search input::placeholder{color:rgba(255,255,255,.5)}
.search input:focus{border-color:var(--gold);width:260px}
.search svg{position:absolute;left:14px;top:12px;opacity:.6}
.search-res{position:absolute;top:48px;right:0;width:360px;max-height:420px;overflow:auto;background:#fff;border-radius:var(--r3);box-shadow:0 24px 64px rgba(0,0,0,.28);padding:var(--s1);display:none}
.search-res.show{display:block}
.search-res a{display:flex;gap:12px;align-items:center;padding:8px;border-radius:var(--r2);font-size:14px;line-height:1.35}
.search-res a:hover{background:var(--paper)}
.search-res img{width:48px;height:48px;object-fit:contain;background:var(--paper);border-radius:var(--r1)}
.search-res b{display:block;font-size:13px;color:var(--ember)}

/* ===== Hero 3D ===== */
.hero{position:relative;min-height:100svh;background:radial-gradient(120% 80% at 70% 40%,#1a1d22 0%,var(--night) 60%);color:#fff;overflow:hidden;isolation:isolate}
#scene{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:160px;background:linear-gradient(transparent,var(--night));z-index:1;pointer-events:none}
.hero .wrap{position:relative;z-index:2;min-height:100svh;display:grid;grid-template-columns:minmax(0,600px) 1fr;align-items:center;padding-top:var(--head)}
.hero h1{font-size:clamp(34px,4.2vw,60px);margin:var(--s2) 0 var(--s3);text-wrap:balance}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p.lead{font-size:18px;color:rgba(255,255,255,.72);max-width:480px}
.cta-row{display:flex;flex-wrap:wrap;gap:var(--s2);margin-top:var(--s4);align-items:center}
.btn{display:inline-flex;align-items:center;gap:10px;height:56px;padding:0 28px;border-radius:999px;font-weight:700;font-size:16px;transition:transform .2s var(--ease),background .2s,box-shadow .3s}
.btn:active{transform:scale(.97)}
.btn-gold{background:var(--gold);color:var(--ink);box-shadow:0 0 0 0 rgba(233,169,43,.5)}
.btn-gold:hover{box-shadow:0 8px 32px rgba(233,169,43,.35)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:#fff}
.btn-ink{background:var(--ink);color:#fff}.btn-ink:hover{background:#000}
.risk{font-size:13px;color:rgba(255,255,255,.55);margin-top:var(--s2)}
.light .risk{color:var(--mute)}
.hud{position:absolute;z-index:2;pointer-events:none;font-family:var(--f-display);font-stretch:112%;font-size:12px;letter-spacing:.12em;color:rgba(255,255,255,.7)}
.hud.tl{top:calc(var(--head) + 24px);right:var(--s3)}
.hud .rec{display:inline-flex;align-items:center;gap:8px}
.hud .rec i{width:8px;height:8px;border-radius:50%;background:#ff3b30;animation:blink 1.2s steps(2) infinite}
@keyframes blink{50%{opacity:.15}}
.ai-box{position:absolute;z-index:2;border:1.5px solid var(--gold);border-radius:var(--r1);pointer-events:none;opacity:0;transition:opacity .5s}
.ai-box span{position:absolute;top:-22px;left:-1.5px;background:var(--gold);color:var(--ink);font:700 11px/1 var(--f-display);letter-spacing:.08em;padding:5px 6px;border-radius:2px 2px 0 0;white-space:nowrap}
.scroll-hint{position:absolute;left:50%;bottom:32px;z-index:3;transform:translateX(-50%);font-size:12px;letter-spacing:.2em;color:rgba(255,255,255,.5);display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-hint i{width:1px;height:40px;background:linear-gradient(var(--gold),transparent);animation:drip 1.8s var(--ease) infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ===== Story (cuộn, 3D tiếp tục) ===== */
.story{background:var(--night);color:#fff;position:relative}
.story-step{min-height:60vh;display:flex;align-items:center}
.story-step .card{max-width:440px;padding:var(--s4);border-radius:var(--r4);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.story-step .wrap{display:flex;justify-content:flex-start}
.story-step h2{font-size:clamp(28px,3.2vw,44px);margin:var(--s2) 0}
.story-step p{color:rgba(255,255,255,.7)}
.num{font-family:var(--f-display);font-weight:800;font-stretch:125%;font-size:14px;color:var(--gold)}

/* ===== Light sections ===== */
.sec{padding:var(--s7) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s3);margin-bottom:var(--s5)}
.sec-head h2{font-size:clamp(30px,3.4vw,48px);margin-top:var(--s1);text-wrap:balance}
.sec-head p{max-width:420px;color:var(--ink-2)}
.link-more{font-weight:700;border-bottom:2px solid var(--gold);padding-bottom:2px;white-space:nowrap}

/* Danh mục */
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--s2)}
.cat{position:relative;background:var(--white);border-radius:var(--r3);padding:var(--s3);min-height:240px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;border:1px solid var(--line);transition:transform .35s var(--ease),box-shadow .35s,border-color .35s}
.cat:hover{transform:translateY(-4px);box-shadow:0 24px 48px rgba(30,30,30,.1);border-color:transparent}
.cat .n{font-family:var(--f-display);font-stretch:125%;font-weight:800;font-size:13px;color:var(--mute)}
.cat h3{font-family:var(--f-display);font-stretch:112%;font-size:20px;line-height:1.15;margin-top:var(--s2)}
.cat p{font-size:13px;color:var(--ink-2);margin-top:var(--s1);line-height:1.5}
.cat .thumb{position:absolute;right:-16px;bottom:-16px;width:120px;height:120px;object-fit:contain;opacity:.95;mix-blend-mode:multiply;transition:transform .5s var(--ease)}
.cat:hover .thumb{transform:scale(1.08) rotate(-3deg)}
.cat.feat{grid-column:span 1;background:var(--ink);color:#fff;border-color:var(--ink)}
.cat.feat p{color:rgba(255,255,255,.65)}.cat.feat .n{color:var(--gold)}
.cat.feat .thumb{mix-blend-mode:normal;border-radius:var(--r2)}

/* Mốc nghị định */
.decree{background:var(--white);border-radius:var(--r4);padding:var(--s6);display:grid;grid-template-columns:1fr 1.2fr;gap:var(--s6);border:1px solid var(--line)}
.decree h2{font-size:clamp(28px,3vw,44px);margin:var(--s2) 0}
.timeline{display:grid;gap:var(--s2)}
.tl-item{display:grid;grid-template-columns:150px 1fr;gap:var(--s3);padding:var(--s3);border-radius:var(--r3);background:var(--paper)}
.tl-item .d{font-family:var(--f-display);font-stretch:118%;font-weight:800;font-size:24px;line-height:1.1}
.tl-item .d small{display:block;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--ember);margin-bottom:4px}
.tl-item p{font-size:15px;color:var(--ink-2)}
.who{display:flex;flex-wrap:wrap;gap:var(--s1);margin-top:var(--s3)}
.who span{font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;background:var(--paper);border:1px solid var(--line)}
.src{font-size:12px;color:var(--mute);margin-top:var(--s2)}

/* Thẻ sản phẩm */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s3)}
.pc{background:var(--white);border-radius:var(--r3);overflow:hidden;display:flex;flex-direction:column;border:1px solid var(--line);transition:transform .35s var(--ease),box-shadow .35s}
.pc:hover{transform:translateY(-4px);box-shadow:0 24px 48px rgba(30,30,30,.1)}
.pc .ph{position:relative;aspect-ratio:1/1;background:#fff;overflow:hidden}
.pc .ph img{width:100%;height:100%;object-fit:contain;transition:transform .6s var(--ease)}
.pc:hover .ph img{transform:scale(1.05)}
.tag{position:absolute;top:12px;left:12px;background:var(--ember);color:#fff;font:700 12px/1 var(--f-display);padding:6px 8px;border-radius:var(--r1)}
.tag.nd{left:auto;right:12px;background:var(--ink);color:var(--gold)}
.pc .bd{padding:var(--s2) var(--s3) var(--s3);display:flex;flex-direction:column;gap:var(--s1);flex:1}
.pc .br{font-size:12px;font-weight:600;color:var(--mute);letter-spacing:.06em;text-transform:uppercase}
.pc h3{font-size:15px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:42px}
.price{margin-top:auto;display:flex;align-items:baseline;gap:var(--s1);flex-wrap:wrap}
.price b{font-family:var(--f-display);font-stretch:112%;font-size:20px;font-weight:800}
.price s{font-size:13px;color:var(--mute)}
.price .ask{font-size:16px;color:var(--ember)}
.price .off{background:var(--ember);color:#fff;font:700 12px/1 var(--f-display);padding:5px 6px;border-radius:var(--r1)}
.pc .br .ndb{color:var(--ember)}

/* Tabs */
.tabs{display:flex;gap:var(--s1);flex-wrap:wrap}
.tab{height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:var(--white);font-weight:600;font-size:14px;transition:background .2s,color .2s,border-color .2s}
.tab.on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* Cam kết */
.promise{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s3)}
.pr{padding:var(--s4) var(--s3);border-top:2px solid var(--ink)}
.pr .ic{width:40px;height:40px;color:var(--ember);margin-bottom:var(--s2)}
.pr h3{font-family:var(--f-display);font-stretch:112%;font-size:20px;line-height:1.2;margin-bottom:var(--s1)}
.pr p{font-size:15px;color:var(--ink-2)}

/* CTA band */
.band{background:var(--ink);color:#fff;border-radius:var(--r4);padding:var(--s6);display:grid;grid-template-columns:1.4fr 1fr;gap:var(--s5);align-items:center;position:relative;overflow:hidden}
.band::before{content:"";position:absolute;width:480px;height:480px;border-radius:50%;right:-120px;top:-180px;background:radial-gradient(circle,rgba(233,169,43,.28),transparent 65%)}
.band h2{font-size:clamp(28px,3.4vw,48px)}
.band .cta-row{margin-top:0;justify-content:flex-end;position:relative}

/* Footer */
.ftr{background:var(--night);color:rgba(255,255,255,.7);padding:var(--s7) 0 var(--s4);margin-top:var(--s7);font-size:14px}
.ftr .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--s5)}
.ftr h4{color:#fff;font-family:var(--f-display);font-stretch:112%;font-size:14px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:var(--s2)}
.ftr li{list-style:none;margin-bottom:10px}
.ftr a:hover{color:var(--gold)}
.ftr .logo img{height:48px;margin-bottom:var(--s2)}
.ftr .base{border-top:1px solid rgba(255,255,255,.08);margin-top:var(--s5);padding-top:var(--s3);display:flex;justify-content:space-between;gap:var(--s2);flex-wrap:wrap;font-size:13px}

/* Thanh gọi trên điện thoại */
.mbar{display:none}

/* ===== Trang danh mục ===== */
.page-hero{background:var(--night);color:#fff;padding:calc(var(--head) + var(--s6)) 0 var(--s6);position:relative;overflow:hidden}
.page-hero h1{font-size:clamp(36px,4.6vw,64px);margin:var(--s2) 0}
.page-hero p{color:rgba(255,255,255,.7);max-width:560px}
.crumb{font-size:13px;color:rgba(255,255,255,.55)}
.crumb a:hover{color:var(--gold)}
.cat-strip{display:flex;gap:var(--s1);overflow-x:auto;padding:var(--s3) 0 0;scrollbar-width:none}
.cat-strip a{flex:none;height:40px;display:flex;align-items:center;padding:0 16px;border-radius:999px;border:1px solid rgba(255,255,255,.16);font-size:14px;font-weight:600;color:rgba(255,255,255,.8)}
.cat-strip a.on{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:var(--s2);margin-bottom:var(--s4);flex-wrap:wrap}
.toolbar select{height:40px;border-radius:999px;border:1px solid var(--line);padding:0 16px;font:inherit;font-size:14px;background:#fff}
.count{font-size:14px;color:var(--ink-2)}
.empty{grid-column:1/-1;text-align:center;padding:var(--s6);color:var(--ink-2)}

/* ===== Trang chi tiết ===== */
.pd{padding:calc(var(--head) + var(--s4)) 0 var(--s6)}
.pd .crumb{color:var(--mute);margin-bottom:var(--s3)}
.pd-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:var(--s6);align-items:start}
.gal{position:sticky;top:calc(var(--head) + var(--s3))}
.gal-main{background:#fff;border-radius:var(--r4);aspect-ratio:1/1;overflow:hidden;border:1px solid var(--line);position:relative}
.gal-main img{width:100%;height:100%;object-fit:contain;transition:opacity .3s,transform .5s var(--ease)}
.gal-main:hover img{transform:scale(1.04)}
.thumbs{display:flex;gap:var(--s1);margin-top:var(--s2);overflow-x:auto}
.thumbs button{flex:none;width:80px;height:80px;border-radius:var(--r2);overflow:hidden;border:2px solid transparent;background:#fff}
.thumbs button.on{border-color:var(--gold)}
.thumbs img{width:100%;height:100%;object-fit:contain}
.pd h1{font-family:var(--f-display);font-stretch:112%;font-size:clamp(28px,2.8vw,40px);line-height:1.12;letter-spacing:-.015em;margin:var(--s1) 0 var(--s3)}
.pd .price b{font-size:36px}
.pd .price .off{background:var(--ember);color:#fff;font:700 13px/1 var(--f-display);padding:6px 8px;border-radius:var(--r1)}
.vat{font-size:13px;color:var(--mute);margin-top:4px}
.feats{list-style:none;margin:var(--s4) 0;display:grid;gap:12px}
.feats li{display:grid;grid-template-columns:24px 1fr;gap:12px;font-size:15px;align-items:start}
.feats li::before{content:"";width:20px;height:20px;margin-top:2px;border-radius:50%;background:var(--gold) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='%231E1E1E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
.buy{display:flex;gap:var(--s2);flex-wrap:wrap}
.buy .btn{flex:1;justify-content:center;min-width:200px}
.pd .risk{color:var(--mute)}
.box{margin-top:var(--s4);border-radius:var(--r3);padding:var(--s3);background:var(--white);border:1px solid var(--line)}
.box h3{font-family:var(--f-display);font-stretch:112%;font-size:16px;margin-bottom:var(--s2)}
.box.nd{background:var(--ink);color:#fff;border-color:var(--ink)}
.box.nd p{color:rgba(255,255,255,.75);font-size:14px}
.box.nd b{color:var(--gold)}
.pol{display:grid;gap:12px;font-size:14px}
.pol div{display:flex;gap:12px;align-items:flex-start}
.pol svg{flex:none;color:var(--ember);margin-top:2px}

/* Modal đặt mua */
.modal{position:fixed;inset:0;z-index:80;display:none;align-items:center;justify-content:center;background:rgba(13,15,18,.6);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:var(--s2)}
.modal.show{display:flex}
.modal .sheet{background:#fff;border-radius:var(--r4);padding:var(--s4);width:100%;max-width:440px;animation:rise .45s var(--ease)}
@keyframes rise{from{opacity:0;transform:translateY(24px) scale(.98)}to{opacity:1;transform:none}}
.modal h3{font-family:var(--f-display);font-stretch:112%;font-size:24px;margin-bottom:var(--s1)}
.modal label{display:block;font-size:13px;font-weight:600;margin:var(--s2) 0 6px}
.modal input,.modal textarea{width:100%;height:48px;border-radius:var(--r2);border:1px solid var(--line);padding:0 14px;font:inherit;outline:none}
.modal textarea{height:80px;padding:12px 14px;resize:none}
.modal input:focus,.modal textarea:focus{border-color:var(--gold)}
.modal .btn{width:100%;justify-content:center;margin-top:var(--s3)}
.note{font-size:12px;color:var(--mute);margin-top:var(--s2)}

/* Hiện dần khi cuộn */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width:1100px){
  .search{display:none}
  .cats{grid-template-columns:repeat(3,1fr)}
  .grid{grid-template-columns:repeat(3,1fr)}
  .promise{grid-template-columns:repeat(2,1fr)}
  .decree{grid-template-columns:1fr;padding:var(--s5)}
}
@media (max-width:860px){
  .nav,.hdr-call{display:none}
  .burger{display:block;margin-left:auto}
  .nav.open{display:flex;position:fixed;top:var(--head);left:0;right:0;flex-direction:column;gap:0;background:var(--night);padding:var(--s2) var(--s3) var(--s4);border-top:1px solid rgba(255,255,255,.08)}
  .nav.open a{padding:var(--s2) 0;font-size:18px;border-bottom:1px solid rgba(255,255,255,.06)}
  .hero .wrap{grid-template-columns:1fr;align-items:end;padding-bottom:var(--s7)}
  .hero p.lead{font-size:16px}
  .hud.tl{display:none}
  .grid{grid-template-columns:repeat(2,1fr);gap:var(--s2)}
  .cats{grid-template-columns:repeat(2,1fr)}
  .cat{min-height:200px}
  .sec{padding:var(--s6) 0}
  .sec-head{flex-direction:column;align-items:flex-start}
  .band{grid-template-columns:1fr;padding:var(--s5) var(--s3)}
  .band .cta-row{justify-content:flex-start}
  .ftr .cols{grid-template-columns:1fr 1fr}
  .pd-grid{grid-template-columns:1fr;gap:var(--s4)}
  .gal{position:static}
  .story-step{min-height:56vh}
  .story-step:nth-child(even) .wrap{justify-content:flex-start}
  .tl-item{grid-template-columns:1fr;gap:var(--s1)}
  .mbar{display:grid;grid-template-columns:1fr 1fr;gap:var(--s1);position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px var(--s2) calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line)}
  .mbar a{height:48px;border-radius:999px;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px}
  .mbar .c1{background:var(--gold);color:var(--ink)}.mbar .c2{background:var(--ink);color:#fff}
  .ftr{padding-bottom:calc(var(--s7) + 40px)}
}
@media (max-width:480px){
  .wrap{padding:0 var(--s2)}
  .cats{grid-template-columns:1fr 1fr;gap:var(--s1)}
  .cat{padding:var(--s2);min-height:180px}.cat h3{font-size:17px}.cat p{display:none}.cat .thumb{width:96px;height:96px}
  .pc .bd{padding:12px}
  .pc h3{font-size:14px}
  .price b{font-size:17px}
  .btn{height:52px;padding:0 22px;font-size:15px}
  .cta-row .btn{width:100%;justify-content:center}
  .ftr .cols{grid-template-columns:1fr}
  .decree{padding:var(--s4) var(--s2)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
}

/* Sân khấu 3D: canvas dính, hero và các bước cuộn chạy bên trên */
.stage{position:relative;background:radial-gradient(120% 70% at 70% 20%,#1b1e24 0%,var(--night) 55%);color:#fff}
/* Khung 3D chỉ phủ đúng phần nền tối, canvas dính bên trong nên không thể trôi xuống phần sản phẩm */
.stage-bg{position:absolute;top:0;left:0;right:0;bottom:120px;z-index:0;overflow:clip;pointer-events:none}
.stage #scene{position:sticky;top:0;display:block;width:100%;height:100svh;transition:opacity .2s linear}
.stage .hero{background:none;min-height:100svh}
.stage .hero::after{display:none}
.stage .story{background:none;position:relative;z-index:2}
.stage::after{content:"";display:block;height:120px;background:linear-gradient(var(--night),var(--paper))}
.specs{display:flex;gap:var(--s3);margin-top:var(--s4);flex-wrap:wrap}
.specs div{font-size:13px;color:rgba(255,255,255,.6)}
.specs b{display:block;font-family:var(--f-display);font-stretch:118%;font-size:22px;color:#fff;font-weight:800}

/* Điện thoại: camera 3D lên nửa trên, phủ tối dưới chữ để đọc rõ */
@media (max-width:860px){
  .stage .hero::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(13,15,18,0) 0%,rgba(13,15,18,0) 30%,rgba(13,15,18,.82) 52%,rgba(13,15,18,.94) 100%);pointer-events:none}
  .hero .eyebrow{font-size:11px}
  .story-step .card{background:rgba(13,15,18,.78)}
}
h1,h2{text-wrap:balance}
/* sửa vòng 2 */
.hdr .wrap{gap:var(--s3)}
.nav{gap:20px}
.search input{width:180px}.search input:focus{width:220px}
.hdr-call{flex:none}
@media (max-width:1320px){.search{display:none}}
.story-step .wrap{width:100%}
.pd-grid>div{min-width:0}
@media (max-width:480px){.hero .eyebrow{display:none}}

/* ===== Tiện ích đa chức năng ===== */
html.lock{overflow:hidden}
.search{display:none!important}
.hdr-tools{display:flex;gap:var(--s1);margin-left:var(--s1)}
.ib{width:44px;height:44px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;color:#fff;border:1px solid rgba(255,255,255,.16);position:relative;transition:background .2s,border-color .2s,transform .2s var(--ease)}
.ib:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3)}.ib:active{transform:scale(.94)}
.ib.dark{color:var(--ink);border-color:var(--line)}.ib.dark:hover{background:var(--paper)}
.badge{position:absolute;top:-4px;right:-4px;min-width:20px;height:20px;padding:0 5px;border-radius:999px;background:var(--gold);color:var(--ink);font:700 11px/20px var(--f-display);text-align:center}
@media (max-width:860px){.hdr-tools{margin-left:auto}.burger{margin-left:0}.ib{width:40px;height:40px}}

/* Tìm kiếm toàn màn hình */
.sov{position:fixed;inset:0;z-index:90;background:rgba(13,15,18,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:none;justify-content:center;align-items:flex-start;padding:10vh var(--s2) var(--s2)}
.sov.show{display:flex}
.sov-in{width:100%;max-width:720px;background:#fff;border-radius:var(--r4);padding:var(--s2);box-shadow:0 32px 80px rgba(0,0,0,.35);animation:rise .4s var(--ease);max-height:80vh;display:flex;flex-direction:column}
.sov-bar{display:flex;align-items:center;gap:12px;padding:0 4px 0 12px;border:2px solid var(--ink);border-radius:999px;height:56px;color:var(--ink)}
.sov-bar input{flex:1;border:0;outline:0;font:inherit;font-size:17px;height:100%;background:none;min-width:0}
.sov-bar .ib{width:44px;height:44px;border:0}
.sov-chips{display:flex;gap:var(--s1);flex-wrap:wrap;margin:var(--s2) 0}
.sov-chips a{font-size:13px;font-weight:600;padding:7px 12px;border-radius:999px;background:var(--paper);border:1px solid var(--line)}
.sov-chips a:hover{border-color:var(--gold)}
.sov-res{overflow:auto;margin:0 -8px;padding:0 8px}
.sov-h{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--mute);margin:var(--s1) 0}
.sov-res a{display:grid;grid-template-columns:56px 1fr auto;gap:var(--s2);align-items:center;padding:8px;border-radius:var(--r2);font-size:14px;line-height:1.35}
.sov-res a:hover{background:var(--paper)}
.sov-res img{width:56px;height:56px;object-fit:contain;background:var(--paper);border-radius:var(--r2)}
.sov-res em{display:block;font-style:normal;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}
.sov-res b{font-family:var(--f-display);font-stretch:112%;white-space:nowrap}
.sov-empty{padding:var(--s3) var(--s1);color:var(--ink-2)}.sov-empty a{font-weight:700;color:var(--ember)}

/* Liên hệ nổi */
.fab{position:fixed;right:20px;bottom:24px;z-index:55;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.fab>*{width:52px;height:52px;border-radius:999px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.22);transition:transform .25s var(--ease)}
.fab>*:hover{transform:translateY(-2px) scale(1.04)}
.fb-call{width:auto;padding:0 18px 0 16px;gap:8px;background:var(--gold);color:var(--ink);font-weight:700;font-size:15px;animation:ring 3s ease-in-out infinite}
@keyframes ring{0%,100%{box-shadow:0 8px 24px rgba(0,0,0,.22),0 0 0 0 rgba(233,169,43,.55)}50%{box-shadow:0 8px 24px rgba(0,0,0,.22),0 0 0 12px rgba(233,169,43,0)}}
.fb-zalo{background:#fff}.fb-zalo svg{width:30px;height:30px}
.fb-mess{background:#fff;color:#0866FF}
.fb-tv{background:var(--ink);color:var(--gold)}
.fb-up{background:#fff;color:var(--ink);opacity:0;pointer-events:none;transform:translateY(8px)}
.fb-up.on{opacity:1;pointer-events:auto;transform:none}

/* Giỏ hàng */
.drw-ov{position:fixed;inset:0;z-index:84;background:rgba(13,15,18,.5);opacity:0;pointer-events:none;transition:opacity .3s}
.drw-ov.show{opacity:1;pointer-events:auto}
.drw{position:fixed;top:0;right:0;bottom:0;z-index:85;width:min(420px,100%);background:#fff;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .45s var(--ease);box-shadow:-24px 0 64px rgba(0,0,0,.2)}
.drw.show{transform:none}
.drw-hd{display:flex;align-items:center;justify-content:space-between;gap:var(--s2);padding:var(--s3) var(--s3) var(--s2)}
.sheet .drw-hd{padding:0 0 var(--s2)}
.drw-hd h3{font-family:var(--f-display);font-stretch:112%;font-size:22px}
.drw-list{flex:1;overflow:auto;padding:0 var(--s3)}
.drw-empty{color:var(--ink-2);padding:var(--s4) 0}
.ci{display:grid;grid-template-columns:72px 1fr;gap:var(--s2);padding:var(--s2) 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.4}
.ci img{width:72px;height:72px;object-fit:contain;background:var(--paper);border-radius:var(--r2)}
.ci a{font-weight:600}.ci b{display:block;font-family:var(--f-display);font-stretch:112%;margin:4px 0 8px}
.qty{display:flex;align-items:center;gap:8px}
.qty button{width:30px;height:30px;border-radius:var(--r2);border:1px solid var(--line);font-size:16px}
.qty span{min-width:20px;text-align:center;font-weight:700}
.qty .rm{width:auto;border:0;color:var(--mute);font-size:13px;margin-left:auto;text-decoration:underline}
.drw-ft{padding:var(--s3);border-top:1px solid var(--line);background:var(--paper)}
.sum{display:flex;justify-content:space-between;align-items:baseline;font-size:15px}
.sum b{font-family:var(--f-display);font-stretch:112%;font-size:22px}
.vatn{font-size:12px;color:var(--mute);margin:6px 0 var(--s2)}

/* Thẻ sản phẩm: so sánh, thêm giỏ */
.cmpb{position:absolute;right:12px;bottom:12px;display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px 0 10px;border-radius:999px;background:rgba(255,255,255,.94);border:1px solid var(--line);font-size:12px;font-weight:700;color:var(--ink);opacity:0;transform:translateY(6px);transition:opacity .25s,transform .25s var(--ease),background .2s}
.cmpb i{width:14px;height:14px;border-radius:4px;border:2px solid var(--ink-2);position:relative}
.cmpb.on{opacity:1;transform:none;background:var(--ink);color:#fff;border-color:var(--ink)}
.cmpb.on i{border-color:var(--gold);background:var(--gold)}
.cmpb.on i::after{content:"";position:absolute;left:3px;top:0;width:4px;height:7px;border:solid var(--ink);border-width:0 2px 2px 0;transform:rotate(45deg)}
.pc:hover .cmpb,.pc:focus-within .cmpb{opacity:1;transform:none}
@media (hover:none){.cmpb{opacity:1;transform:none}}
.cmpb.inline{position:static;opacity:1;transform:none}
.pc-ft{margin-top:auto;display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s1)}
.pc-ft .price{margin-top:0}
.qadd{flex:none;width:36px;height:36px;border-radius:999px;background:var(--ink);color:var(--gold);font:700 20px/1 var(--f-display);transition:transform .2s var(--ease),background .2s}
.qadd:hover{background:#000;transform:scale(1.06)}

/* Thanh so sánh */
.cmpbar{position:fixed;left:50%;bottom:24px;z-index:56;transform:translate(-50%,140%);display:flex;align-items:center;gap:var(--s3);background:var(--ink);color:#fff;padding:12px 12px 12px 16px;border-radius:var(--r3);box-shadow:0 20px 50px rgba(0,0,0,.35);transition:transform .45s var(--ease);max-width:calc(100% - 32px)}
.cmpbar.show{transform:translate(-50%,0)}
.cb-items{display:flex;gap:var(--s1)}
.cb-i{position:relative;width:56px;height:56px;border-radius:var(--r2);background:#fff}
.cb-i img{width:100%;height:100%;object-fit:contain;border-radius:var(--r2)}
.cb-i button{position:absolute;top:-6px;right:-6px;width:22px;height:22px;border-radius:999px;background:var(--ember);color:#fff;display:flex;align-items:center;justify-content:center}
.cb-i button svg{width:12px;height:12px}
.cb-i.empty{background:none;border:1.5px dashed rgba(255,255,255,.3);font-size:10px;color:rgba(255,255,255,.55);display:flex;align-items:center;justify-content:center;text-align:center;line-height:1.2}
.cb-act{display:flex;align-items:center;gap:var(--s2)}
.cb-act span{font-size:13px;color:rgba(255,255,255,.7);white-space:nowrap}
.cb-act .btn{height:44px;padding:0 20px;font-size:14px}
.cb-act .btn[disabled]{opacity:.45;cursor:not-allowed}
.lnk{font-size:13px;font-weight:600;text-decoration:underline;text-underline-offset:3px;color:inherit;opacity:.8}
.lnk:hover{opacity:1}

/* Bảng so sánh */
.sheet.wide{max-width:960px;max-height:88vh;overflow:auto}
.cmpt table{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
.cmpt{overflow-x:auto}
.cmpt th,.cmpt td{padding:12px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
.cmpt tbody th{width:120px;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.cmpt thead th{font-weight:600;line-height:1.35}
.cmpt thead img{width:120px;height:120px;object-fit:contain;background:var(--paper);border-radius:var(--r2);margin-bottom:8px}
.cmpt thead span{display:block}
.cmpt .pz{font-family:var(--f-display);font-stretch:112%;font-size:18px;display:block}
.cmpt s{font-size:12px;color:var(--mute)}
.cmpt ul{padding-left:18px;display:grid;gap:4px}
.cmp-b{display:flex;flex-direction:column;gap:8px}
.btn.sm{height:40px;padding:0 16px;font-size:13px;justify-content:center}

/* Form tư vấn */
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg button{height:38px;padding:0 14px;border-radius:999px;border:1px solid var(--line);font-size:13px;font-weight:600;transition:background .2s,color .2s,border-color .2s}
.seg button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.sheet{max-height:92vh;overflow:auto}

/* Trang chi tiết */
.btn-line{border:1.5px solid var(--ink);color:var(--ink)}.btn-line:hover{background:var(--ink);color:#fff}
.btn.wide{width:100%;justify-content:center;margin-top:var(--s2)}
.pd-act{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s3);margin-top:var(--s3);color:var(--ink-2)}

/* Bộ lọc danh mục */
.filters{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s2) var(--s4);margin:-8px 0 var(--s4);padding:var(--s2) var(--s3);background:#fff;border:1px solid var(--line);border-radius:var(--r3)}
.filters:empty{display:none}
.fg{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.fg>span{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--mute);margin-right:4px}
.chip{height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--paper);font-size:13px;font-weight:600;transition:background .2s,color .2s,border-color .2s}
.chip.on{background:var(--gold);border-color:var(--gold);color:var(--ink)}

/* Thông báo nhỏ */
.toast{position:fixed;left:50%;top:88px;z-index:95;transform:translate(-50%,-12px);opacity:0;background:var(--ink);color:#fff;padding:12px 18px;border-radius:999px;font-size:14px;font-weight:600;transition:opacity .3s,transform .3s var(--ease);box-shadow:0 12px 32px rgba(0,0,0,.25)}
.toast.in{opacity:1;transform:translate(-50%,0)}

.ftr .soc{display:flex;gap:var(--s2);margin-top:var(--s1)}
.ftr .soc a{border-bottom:1px solid rgba(255,255,255,.25);padding-bottom:2px}

@media (max-width:860px){
  .fab{bottom:calc(84px + env(safe-area-inset-bottom));right:12px;gap:8px}
  .fab>*{width:46px;height:46px}
  .fb-call{display:none}
  .fb-tv{display:none}
  .cmpbar{bottom:calc(84px + env(safe-area-inset-bottom));gap:var(--s2);padding:10px}
  .cmpbar .cb-act span,.cmpbar .lnk{display:none}
  .cb-i{width:44px;height:44px}
  .filters{padding:var(--s2);gap:var(--s2)}
  .buy .btn{min-width:0}
}
@media (max-width:480px){
  .qadd{width:32px;height:32px;font-size:18px}
  .pc .bd{padding:12px 12px 14px}
  .cmpb span{display:none}.cmpb{padding:0 9px;height:30px;right:8px;bottom:8px}
  .sov{padding-top:var(--s2)}
}
/* sửa vòng 2 tiện ích */
.fb-call{width:52px;padding:0;position:relative}
.fb-call span{position:absolute;right:62px;top:50%;transform:translateY(-50%) translateX(8px);white-space:nowrap;background:var(--ink);color:#fff;font-size:14px;padding:8px 12px;border-radius:999px;opacity:0;pointer-events:none;transition:opacity .2s,transform .25s var(--ease)}
.fb-call:hover span,.fb-call:focus-visible span{opacity:1;transform:translateY(-50%)}
.cmp-b{flex-direction:row;flex-wrap:wrap}
.cmp-b .btn{flex:1;min-width:120px}
.sov-bar input::-webkit-search-cancel-button{-webkit-appearance:none;display:none}
.cmp-b{flex-direction:column}.cmp-b .btn{width:100%;flex:none}
@media (max-width:860px){
  .fab .fb-zalo,.fab .fb-mess{display:none}
  .mbar{grid-template-columns:1fr 1fr 48px}
  .mbar .c3{background:#fff;border:1px solid var(--line);color:#0866FF;padding:0}
  .mbar .c2 svg{width:24px;height:24px;border-radius:6px}
}

/* ===== Nút nổi đồng bộ màu web (than + vàng) ===== */
.zt{font-family:var(--f-display);font-stretch:118%;font-weight:800;font-size:12px;letter-spacing:.02em;line-height:1}
.fab>*{border:1px solid rgba(233,169,43,.28)}
.fb-call{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.fb-zalo,.fb-mess,.fb-tv{background:var(--ink);color:var(--gold)}
.fb-zalo .zt{font-size:13px}
.fb-zalo:hover,.fb-mess:hover,.fb-tv:hover{background:#000;border-color:var(--gold)}
.fb-up{background:var(--ink);color:#fff;border-color:rgba(255,255,255,.14)}
@media (max-width:860px){
  .mbar .c2{background:var(--ink);color:#fff}
  .mbar .c2 .zt{display:inline-flex;align-items:center;justify-content:center;height:24px;padding:0 6px;border-radius:6px;background:var(--gold);color:var(--ink);font-size:10px}
  .mbar .c3{background:var(--ink);border:0;color:var(--gold)}
}

/* ===== Chân trang mới ===== */
.ftr{position:relative;overflow:hidden;padding:0 0 var(--s4);background:var(--night);color:rgba(255,255,255,.66)}
.ftr::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 85% 20%,rgba(233,169,43,.10),transparent 70%),radial-gradient(40% 40% at 0% 100%,rgba(200,87,27,.10),transparent 70%);pointer-events:none}
.ftr>*{position:relative}
.ftr-cta{background:linear-gradient(100deg,var(--gold) 0%,#F0B94A 55%,#E9A92B 100%);color:var(--ink)}
.fc-in{display:flex;align-items:center;justify-content:space-between;gap:var(--s4);padding:var(--s5) 0}
.fc-in .eyebrow{color:var(--ink);opacity:.7}
.fc-in h3{font-size:clamp(24px,2.6vw,36px);margin-top:var(--s1);max-width:640px;text-wrap:balance}
.fc-act{display:flex;gap:var(--s2);flex-wrap:wrap;flex:none}
.fc-act .btn-gold{background:var(--ink);color:var(--gold)}
.fc-act .btn-gold:hover{background:#000;box-shadow:none}
.fc-act .btn-ghost{border-color:rgba(30,30,30,.4);color:var(--ink)}
.fc-act .btn-ghost:hover{border-color:var(--ink);background:rgba(255,255,255,.25)}
.ftr-trust{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s2);padding:var(--s5) 0;border-bottom:1px solid rgba(255,255,255,.08)}
.ftr-trust div{display:grid;grid-template-columns:44px 1fr;column-gap:14px;align-items:center}
.ftr-trust svg{grid-row:span 2;width:44px;height:44px;padding:10px;border-radius:12px;background:rgba(233,169,43,.1);color:var(--gold);border:1px solid rgba(233,169,43,.22)}
.ftr-trust b{color:#fff;font-family:var(--f-display);font-stretch:112%;font-size:15px}
.ftr-trust span{font-size:13px;line-height:1.4}
.ftr .cols{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:var(--s5);padding:var(--s6) 0 var(--s4)}
.ftr h4{color:#fff;position:relative;padding-bottom:12px;margin-bottom:var(--s2)}
.ftr h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--gold);border-radius:2px}
.ftr li{margin-bottom:12px}
.ftr ul a{transition:color .2s,padding .25s var(--ease)}
.ftr .cols ul a:hover{color:var(--gold)}
.ftr .cols>div:nth-child(2) a,.ftr .cols>div:nth-child(3) a{display:inline-flex;align-items:center;gap:8px}
.ftr .cols>div:nth-child(2) a:hover,.ftr .cols>div:nth-child(3) a:hover{padding-left:6px}
.ftr li em{font-style:normal;font-family:var(--f-display);font-size:11px;font-weight:700;min-width:22px;height:18px;padding:0 6px;border-radius:999px;background:rgba(255,255,255,.08);color:rgba(255,255,255,.6);display:inline-flex;align-items:center;justify-content:center}
.ftr-brand .logo img{height:52px;width:auto;margin-bottom:var(--s3)}
.ftr-brand p{max-width:340px;line-height:1.7}
.ftr .soc{display:flex;gap:10px;margin-top:var(--s3)}
.ftr .soc a{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:var(--gold);padding:0;transition:background .2s,transform .25s var(--ease),border-color .2s}
.ftr .soc a:hover{background:var(--gold);color:var(--ink);border-color:var(--gold);transform:translateY(-2px)}
.ftr .soc svg{width:18px;height:18px}
.ftr-contact li{display:grid;grid-template-columns:20px 1fr;gap:12px;align-items:start;line-height:1.5}
.ftr-contact svg{width:18px;height:18px;color:var(--gold);margin-top:2px}
.ftr-contact .big{font-family:var(--f-display);font-stretch:118%;font-weight:800;font-size:22px;color:#fff;line-height:1.1}
.ftr-contact .big:hover{color:var(--gold)}
.ftr-mark{font-family:var(--f-display);font-stretch:125%;font-weight:800;font-size:clamp(64px,13vw,200px);line-height:.8;letter-spacing:-.03em;text-align:center;color:transparent;-webkit-text-stroke:1px rgba(233,169,43,.18);user-select:none;margin:var(--s2) 0 var(--s3);white-space:nowrap}
.ftr .base{margin-top:0;border-top:1px solid rgba(255,255,255,.08);color:rgba(255,255,255,.45)}
@media (max-width:1100px){.ftr-trust{grid-template-columns:repeat(2,1fr);row-gap:var(--s3)}.ftr .cols{grid-template-columns:1fr 1fr}}
@media (max-width:860px){.fc-in{flex-direction:column;align-items:flex-start;padding:var(--s4) 0}.ftr{padding-bottom:calc(var(--s5) + 64px)}}
@media (max-width:480px){.ftr-trust{grid-template-columns:1fr}.ftr .cols{grid-template-columns:1fr;gap:var(--s4)}.fc-act{width:100%}.fc-act .btn{flex:1;justify-content:center}.ftr-mark{-webkit-text-stroke-width:.7px}}
.ftr-mark{font-size:min(11.5vw,170px);font-stretch:110%;letter-spacing:-.02em;overflow:hidden}
@media (max-width:600px){
  .fc-act{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%}
  .fc-act .btn{width:100%;padding:0 12px;font-size:14px;justify-content:center;white-space:nowrap}
  .fc-act .btn-gold{grid-column:1/-1}
}
.ftr-mark{line-height:1.05;padding-top:.12em;overflow:visible}
.cmpbar{visibility:hidden;transform:translate(-50%,200%)}
.cmpbar.show{visibility:visible;transform:translate(-50%,0)}

/* ===== Thanh ưu đãi trên cùng ===== */
:root{--top:36px}
.topbar{position:fixed;top:0;left:0;right:0;height:var(--top);z-index:51;background:#0a0b0d;color:rgba(255,255,255,.82);font-size:13px;border-bottom:1px solid rgba(233,169,43,.18);transition:transform .35s var(--ease)}
.topbar .wrap{height:100%;display:flex;align-items:center;gap:12px}
.tb-tag{flex:none;background:var(--gold);color:var(--ink);font:700 11px/1 var(--f-display);letter-spacing:.08em;text-transform:uppercase;padding:5px 8px;border-radius:4px}
.tb-rot{position:relative;flex:1;height:20px;overflow:hidden}
.tb-rot span{position:absolute;inset:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;opacity:0;transform:translateY(100%);transition:opacity .4s,transform .45s var(--ease)}
.tb-rot span.on{opacity:1;transform:none}
.topbar a{flex:none;color:var(--gold);font-weight:700;border-bottom:1px solid rgba(233,169,43,.4)}
.hdr{top:var(--top);transition:top .35s var(--ease),background .4s var(--ease),box-shadow .4s var(--ease)}
html.bar-off .topbar{transform:translateY(-100%)}
html.bar-off .hdr{top:0}
.hero .wrap{padding-top:calc(var(--head) + var(--top))}
.page-hero{padding-top:calc(var(--head) + var(--top) + var(--s6))}
.pd{padding-top:calc(var(--head) + var(--top) + var(--s4))}
.hud.tl{top:calc(var(--head) + var(--top) + 24px);transition:opacity .4s}
@media (max-width:860px){.nav.open{top:calc(var(--head) + var(--top))}html.bar-off .nav.open{top:var(--head)}.topbar a{display:none}}

/* ===== Tab nhóm hàng ở đầu trang (kính mờ, vệt sáng chạy theo) ===== */
.htabs{position:relative;display:inline-flex;gap:4px;padding:4px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);margin-bottom:var(--s4);max-width:100%;overflow-x:auto;scrollbar-width:none}
.htabs::-webkit-scrollbar{display:none}
.htabs button{position:relative;z-index:1;flex:none;height:40px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:600;color:rgba(255,255,255,.7);transition:color .3s}
.htabs button.on{color:var(--ink)}
.htabs button:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.hglow{position:absolute;left:4px;top:4px;height:40px;border-radius:999px;background:linear-gradient(180deg,#F3BE52,var(--gold));box-shadow:0 0 24px rgba(233,169,43,.55),inset 0 1px 0 rgba(255,255,255,.5);transition:transform .5s var(--ease),width .5s var(--ease)}
.hswap{transition:opacity .22s,transform .22s var(--ease)}
.hswap.out{opacity:0;transform:translateY(8px)}
.hero h1{min-height:3.06em}

/* Quạt sản phẩm 3D */
.showcase{position:absolute;z-index:2;top:calc(var(--head) + var(--top));bottom:0;right:0;width:50%;display:flex;align-items:center;justify-content:center;perspective:1400px;pointer-events:none;opacity:0;transition:opacity .45s}
.showcase.show{opacity:1;pointer-events:auto}
.showcase.away{opacity:0!important;pointer-events:none}
.sc-stage{position:relative;width:300px;height:420px;transform-style:preserve-3d;transform:rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .25s ease-out}
.sc-card{position:absolute;inset:0;background:#fff;border-radius:var(--r4);overflow:hidden;color:var(--ink);box-shadow:0 30px 70px rgba(0,0,0,.45),0 0 0 1px rgba(255,255,255,.08);display:flex;flex-direction:column;transition:transform .7s var(--ease),filter .4s,box-shadow .3s;will-change:transform}
.showcase:not(.show) .sc-card{transform:translateY(40px) scale(.9)!important}
.sc-card.c0{transform:translateX(0) translateZ(60px);z-index:3}
.sc-card.c1{transform:translateX(-62%) translateZ(-40px) rotateY(24deg);z-index:2;filter:brightness(.82)}
.sc-card.c2{transform:translateX(62%) translateZ(-40px) rotateY(-24deg);z-index:2;filter:brightness(.82)}
.sc-card:hover{filter:none;z-index:4}
.sc-card.c1:hover{transform:translateX(-66%) translateZ(80px) rotateY(10deg)}
.sc-card.c2:hover{transform:translateX(66%) translateZ(80px) rotateY(-10deg)}
.sc-card.c0:hover{transform:translateZ(110px)}
.sc-img{height:250px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}
.sc-img img{width:100%;height:100%;object-fit:contain}
.sc-bd{padding:14px 18px 18px;display:flex;flex-direction:column;gap:4px;flex:1;border-top:1px solid var(--line)}
.sc-bd span{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}
.sc-bd>b{font-size:14px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sc-pr{font-family:var(--f-display);font-stretch:112%;font-weight:800;font-size:18px;display:flex;align-items:center;gap:8px;margin-top:auto}
.sc-pr em{font-style:normal;font-size:11px;background:var(--ember);color:#fff;padding:4px 6px;border-radius:4px}

/* Dòng quà tặng */
.gift{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:#9a5a0c;background:#FBF1DC;border:1px solid #F1D9A6;border-radius:8px;padding:5px 8px;line-height:1.3;min-width:0}
.gift svg{flex:none;color:var(--ember)}
.gift span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.gift b{flex:none;margin-left:auto;font-size:11px;color:var(--ember)}
.pc .gift{margin-top:2px}

/* Khung quà tặng ở trang chi tiết */
.giftbox{margin:0 0 var(--s4);padding:var(--s3);border-radius:var(--r3);background:linear-gradient(135deg,#FFF8EA,#FBEFD4);border:1px solid #F1D9A6;position:relative;overflow:hidden}
.giftbox::after{content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,rgba(233,169,43,.35),transparent 70%)}
.giftbox h3{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-stretch:112%;font-size:17px;margin-bottom:12px}
.giftbox h3 span{width:32px;height:32px;border-radius:10px;background:var(--gold);color:var(--ink);display:flex;align-items:center;justify-content:center}
.giftbox h3 svg{width:18px;height:18px}
.giftbox ul{list-style:none;display:grid;gap:8px}
.giftbox li{display:flex;gap:10px;font-weight:600;font-size:15px}
.giftbox li::before{content:"";flex:none;width:8px;height:8px;margin-top:8px;border-radius:2px;background:var(--ember);transform:rotate(45deg)}
.giftbox p{font-size:12px;color:#7a6a4f;margin-top:12px}

/* Mục ưu đãi */
.ud-box{background:linear-gradient(180deg,#fff,#FFFBF2);border:1px solid #F1D9A6;border-radius:var(--r4);padding:var(--s5)}
.ud-box .sec-head{margin-bottom:var(--s3)}
.ud-box .tabs{margin-bottom:var(--s4)}
.tab small{font-size:11px;opacity:.6;margin-left:2px}
.ud-more{grid-column:1/-1;justify-self:center;margin-top:var(--s2)}

/* Nút vàng kiểu liquid (học từ Liquid button) */
.btn-gold{position:relative;overflow:hidden;isolation:isolate}
.btn-gold::before{content:"";position:absolute;inset:-2px;z-index:-1;background:radial-gradient(120px 60px at var(--lx,50%) 120%,rgba(255,255,255,.55),transparent 70%);opacity:0;transition:opacity .3s}
.btn-gold::after{content:"";position:absolute;top:0;bottom:0;left:-60%;width:50%;z-index:-1;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);transition:left .7s var(--ease)}
.btn-gold:hover::after{left:120%}
.btn-gold:hover::before{opacity:1}

@media (max-width:1100px){.showcase{width:46%}.sc-stage{width:250px;height:370px}.sc-img{height:210px}}
@media (max-width:860px){
  .showcase{top:calc(var(--head) + var(--top) + 8px);bottom:auto;height:300px;width:100%;left:0}
  .sc-stage{width:170px;height:250px}
  .sc-img{height:150px}.sc-bd{padding:10px 12px 12px}.sc-bd>b{font-size:12px}.sc-pr{font-size:14px}.sc-card .gift{display:none}
  .sc-card.c1{transform:translateX(-70%) translateZ(-40px) rotateY(22deg)}
  .sc-card.c2{transform:translateX(70%) translateZ(-40px) rotateY(-22deg)}
  .htabs{margin-bottom:var(--s3)}
  .htabs button{height:36px;padding:0 12px;font-size:13px}
  .hglow{height:36px}
  .hero h1{min-height:0}
  .ud-box{padding:var(--s4) var(--s2)}
}
@media (max-width:480px){.hero .eyebrow{display:none}.hero h1{font-size:30px}}
/* sửa vòng 2 đầu trang nhiều nhóm */
.showcase{width:44%;right:4%}
.sc-card.c1{transform:translateX(-54%) translateZ(-40px) rotateY(22deg)}
.sc-card.c2{transform:translateX(54%) translateZ(-40px) rotateY(-22deg)}
.sc-card.c1:hover{transform:translateX(-58%) translateZ(80px) rotateY(10deg)}
.sc-card.c2:hover{transform:translateX(58%) translateZ(80px) rotateY(-10deg)}
@media (max-width:860px){
  .hero .wrap{padding-bottom:var(--s4)}
  .scroll-hint{display:none}
  .hero p.lead{display:none}
  .showcase{top:calc(var(--head) + var(--top) + 4px);height:280px;width:100%;right:auto;left:0}
  .sc-stage{width:150px;height:226px}
  .sc-img{height:132px}
  .sc-card.c1{transform:translateX(-66%) translateZ(-40px) rotateY(22deg)}
  .sc-card.c2{transform:translateX(66%) translateZ(-40px) rotateY(-22deg)}
}
.sc-bd .gift span{text-transform:none;letter-spacing:0;font-size:12px;font-weight:600;color:inherit}

/* ===== Đầu trang v3: kéo xoay camera, băng chuyền 3D ===== */
.stage::after{height:80px}
.hero .wrap{pointer-events:none}
.hero-txt{pointer-events:auto}
.hero .specs{display:flex;gap:var(--s3);margin-top:var(--s3);flex-wrap:wrap}
.hero .specs:empty{display:none}
.hero .specs div{font-size:12px;color:rgba(255,255,255,.6);padding-left:12px;border-left:2px solid var(--gold)}
.hero .specs b{display:block;font-family:var(--f-display);font-stretch:118%;font-size:20px;color:#fff;font-weight:800;line-height:1.2}
.drag3d{position:absolute;z-index:3;top:calc(var(--head) + var(--top));bottom:0;right:0;width:50%;cursor:grab;touch-action:pan-y;opacity:0;pointer-events:none;transition:opacity .4s}
.drag3d.on{opacity:1;pointer-events:auto}
.drag3d.grab{cursor:grabbing}
.d3hint{position:absolute;left:50%;top:18%;transform:translateX(-50%);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:8px;pointer-events:none;white-space:nowrap}
.d3hint::before,.d3hint::after{content:"";width:24px;height:1px;background:rgba(233,169,43,.6)}
.cam-strip{position:absolute;left:50%;bottom:72px;transform:translateX(-50%);display:flex;align-items:center;gap:8px;padding:8px;border-radius:999px;background:rgba(13,15,18,.55);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);cursor:default;white-space:nowrap}
.cam-strip>span{font-size:12px;color:rgba(255,255,255,.6);padding:0 8px 0 10px}
.cam-strip a{position:relative;display:block;width:48px;height:48px;border-radius:12px;background:#fff;overflow:hidden;border:2px solid transparent;transition:border-color .2s,transform .25s var(--ease)}
.cam-strip a:hover{border-color:var(--gold);transform:translateY(-3px)}
.cam-strip img{width:100%;height:100%;object-fit:cover}
.cam-strip i{position:absolute;bottom:58px;left:50%;transform:translateX(-50%) translateY(4px);background:var(--ink);color:#fff;font-style:normal;font-size:12px;padding:6px 10px;border-radius:8px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}
.cam-strip a{overflow:visible}.cam-strip img{border-radius:10px}
.cam-strip a:hover i{opacity:1;transform:translateX(-50%)}

.showcase{z-index:3;flex-direction:column;gap:var(--s3);perspective:1600px}
.cf{position:relative;width:100%;height:440px;display:flex;align-items:center;justify-content:center;transform-style:preserve-3d;touch-action:pan-y;cursor:grab;user-select:none;-webkit-user-select:none}
.cf.grab{cursor:grabbing}
.cf-track{position:relative;width:260px;height:400px;transform-style:preserve-3d}
.cf-card{position:absolute;inset:0;background:#fff;border-radius:var(--r4);overflow:hidden;color:var(--ink);box-shadow:0 30px 70px rgba(0,0,0,.45);display:flex;flex-direction:column;will-change:transform;transition:filter .3s,box-shadow .3s;-webkit-user-drag:none}
.cf-card.front{box-shadow:0 36px 80px rgba(0,0,0,.55),0 0 0 2px var(--gold)}
.cf-card .sc-img{height:230px}
.cf-card img{pointer-events:none}
.cf-ctl{display:flex;align-items:center;gap:var(--s2)}
.cf-btn{width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;color:#fff;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);transition:background .2s,border-color .2s}
.cf-btn:hover{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.cf-n{min-width:56px;text-align:center;font-family:var(--f-display);font-stretch:118%;font-weight:800;color:#fff;font-size:15px}
.cf-all{font-size:13px;font-weight:700;color:var(--gold);border-bottom:1px solid rgba(233,169,43,.4);margin-left:var(--s1)}
@media (max-width:1100px){.cf-track{width:220px;height:350px}.cf-card .sc-img{height:190px}.cf{height:380px}}
@media (max-width:860px){
  .drag3d{top:calc(var(--head) + var(--top));height:250px;bottom:auto;width:100%;left:0}
  .d3hint{top:auto;bottom:6px}
  .cam-strip{display:none}
  .hero .specs{gap:var(--s2);margin-top:var(--s2)}
  .hero .specs b{font-size:16px}
  .showcase{height:330px;gap:8px}
  .cf{height:270px}
  .cf-track{width:160px;height:250px}
  .cf-card .sc-img{height:136px}
  .cf-all{display:none}
  .cf-btn{width:36px;height:36px}
}
.cf-track{pointer-events:none}
.cf-card{pointer-events:auto}
@media (max-width:860px){.showcase{height:300px}.cf{height:240px}.cf-track{width:146px;height:226px}.cf-card .sc-img{height:120px}}
.hero .wrap{z-index:4}
.hero-txt{position:relative}
@media (max-width:860px){.drag3d{height:220px}}
.drag3d,.cf{user-select:none;-webkit-user-select:none}
@media (max-width:480px){.hero .specs{display:grid;grid-template-columns:repeat(4,auto);gap:10px}.hero .specs div{padding-left:8px;font-size:10px}.hero .specs b{font-size:14px}}

/* ===== Nền đầu trang danh mục: đường đêm + ánh vàng + 3 sản phẩm thật ===== */
.page-hero{isolation:isolate;min-height:420px}
.page-hero .wrap{position:relative;z-index:2}
.ph-bg{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.ph-glow{position:absolute;inset:0;background:radial-gradient(45% 70% at 78% 55%,rgba(233,169,43,.22),transparent 70%),radial-gradient(30% 50% at 95% 10%,rgba(200,87,27,.18),transparent 70%)}
.ph-road{position:absolute;left:-10%;right:-10%;bottom:-40%;height:120%;transform:perspective(520px) rotateX(62deg);transform-origin:50% 100%;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);background-size:64px 64px;
  -webkit-mask-image:linear-gradient(to top,#000 10%,transparent 75%);mask-image:linear-gradient(to top,#000 10%,transparent 75%);animation:roadmove 3.5s linear infinite}
@keyframes roadmove{to{background-position:0 64px,0 0}}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;z-index:1;background:linear-gradient(90deg,transparent,rgba(233,169,43,.6),transparent)}
.ph-stack{position:absolute;z-index:1;right:max(24px,calc((100vw - var(--wrap))/2 + 24px));top:calc(var(--head) + var(--top) + 28px);bottom:36px;width:min(40vw,500px);perspective:1200px}
.phs{position:absolute;top:50%;width:200px;aspect-ratio:1;border-radius:var(--r4);background:#fff;overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,.5),0 0 0 1px rgba(255,255,255,.08);transition:transform .5s var(--ease)}
.phs img{width:100%;height:100%;object-fit:contain}
.phs.s0{right:150px;transform:translateY(-50%) rotateY(-14deg) translateZ(40px);z-index:3}
.phs.s1{right:300px;transform:translateY(-58%) rotateY(18deg) scale(.82);z-index:2;filter:brightness(.8)}
.phs.s2{right:0;transform:translateY(-42%) rotateY(-24deg) scale(.82);z-index:2;filter:brightness(.8)}
.phs:hover{filter:none;transform:translateY(-54%) scale(1.04);z-index:4}
.page-hero h1,.page-hero p{max-width:620px}
@media (max-width:1100px){.ph-stack{width:44vw}.phs{width:160px}.phs.s0{right:110px}.phs.s1{right:220px}}
@media (max-width:860px){.ph-stack{display:none}.page-hero{min-height:0}.ph-glow{background:radial-gradient(70% 60% at 85% 20%,rgba(233,169,43,.2),transparent 70%)}}
@media (prefers-reduced-motion:reduce){.ph-road{animation:none}}
.ph-road{background-image:linear-gradient(rgba(233,169,43,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.09) 1px,transparent 1px)}

/* ===== Bài mô tả sản phẩm (sinh từ Excel) ===== */
.mota{padding-top:0}
.mota-in{background:#fff;border:1px solid var(--line);border-radius:var(--r4);padding:var(--s6)}
.mota-in>h2{font-size:clamp(26px,2.6vw,38px);margin:var(--s1) 0 var(--s4);max-width:820px}
.md{max-width:820px;font-size:16px;line-height:1.75;color:var(--ink-2)}
.md h2{font-family:var(--f-display);font-stretch:112%;font-size:24px;color:var(--ink);margin:var(--s5) 0 var(--s2);line-height:1.25}
.md h3{font-family:var(--f-display);font-stretch:108%;font-size:18px;color:var(--ink);margin:var(--s4) 0 var(--s1);padding-left:14px;border-left:3px solid var(--gold)}
.md p{margin-bottom:var(--s2)}
.md ul{margin:0 0 var(--s2) 20px}
.md li{margin-bottom:6px}
.md-tb{overflow-x:auto;margin:var(--s2) 0 var(--s3);border:1px solid var(--line);border-radius:var(--r3)}
.md table{width:100%;border-collapse:collapse;font-size:15px}
.md th,.md td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.md tr:last-child th,.md tr:last-child td{border-bottom:0}
.md th{width:38%;background:var(--paper);color:var(--ink);font-weight:600}
@media (max-width:860px){.mota-in{padding:var(--s4) var(--s2)}.md{font-size:15px}.md th{width:42%}.md th,.md td{padding:10px 12px}}

/* ===== So sánh v2 ===== */
#cmpM .sheet.wide{max-width:1120px;padding:var(--s4) var(--s4) var(--s3)}
.cmp-tool{display:flex;flex-wrap:wrap;align-items:center;gap:var(--s3);margin-bottom:var(--s2)}
.sw{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:600;cursor:pointer}
.sw input{position:absolute;opacity:0;pointer-events:none}
.sw i{position:relative;width:40px;height:22px;border-radius:999px;background:var(--line);transition:background .2s}
.sw i::after{content:"";position:absolute;left:3px;top:3px;width:16px;height:16px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .25s var(--ease)}
.sw input:checked+i{background:var(--ink)}.sw input:checked+i::after{transform:translateX(18px);background:var(--gold)}
.sw input:focus-visible+i{outline:2px solid var(--gold);outline-offset:2px}
.sw small{color:var(--mute);font-weight:500}
.cmp-tool .lnk{color:var(--ink-2)}
.cmp-warn{font-size:13px;background:#FFF4E5;border:1px solid #F1D9A6;color:#8a5a12;padding:8px 12px;border-radius:var(--r2);margin-bottom:var(--s2)}
.cmp-scroll{overflow:auto;max-height:68vh;border:1px solid var(--line);border-radius:var(--r3)}
.cmpt table{min-width:0;width:100%;border-collapse:separate;border-spacing:0;font-size:14px}
.cmpt th,.cmpt td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left;background:#fff}
.cmpt tbody th{position:sticky;left:0;z-index:1;width:150px;min-width:130px;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:none;color:var(--ink-2);background:#FAFAF8}
.cmpt thead th{position:sticky;top:0;z-index:2;background:#fff;box-shadow:0 1px 0 var(--line);min-width:210px}
.cmpt thead th.corner{left:0;z-index:3;min-width:130px;font-size:12px;color:var(--mute);vertical-align:bottom;background:#FAFAF8}
.cmpt thead th a{display:block}
.cmpt thead img{width:100%;max-width:150px;height:auto;aspect-ratio:1;object-fit:contain;background:var(--paper);border-radius:var(--r2);margin:0 0 8px}
.cmpt thead span{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:14px;font-weight:600;line-height:1.35;margin-bottom:10px;min-height:38px}
.cmpt thead .btn{width:100%}
.cmpt thead th{position:sticky}
.cmp-x{position:absolute;top:8px;right:8px;width:28px;height:28px;border-radius:50%;background:var(--paper);display:flex;align-items:center;justify-content:center;color:var(--ink-2)}
.cmp-x svg{width:14px;height:14px}.cmp-x:hover{background:var(--ember);color:#fff}
.cmpt tr.grp th{position:sticky;left:0;background:var(--ink);color:var(--gold);font-family:var(--f-display);font-stretch:112%;font-size:12px;letter-spacing:.12em;text-transform:uppercase;padding:9px 14px}
.cmpt tr.diff td{background:#FFFCF4}
.cmpt tr.same td{color:var(--ink-2)}
.cmpt table.only-diff tr.same{display:none}
.cmpt .pz{display:block;font-family:var(--f-display);font-stretch:112%;font-size:20px;color:var(--ink)}
.cmpt s{font-size:12px;color:var(--mute);margin-right:6px}
.cmpt .best{display:inline-block;margin-top:4px;font-size:11px;font-weight:700;background:#E6F4EA;color:#1E7A3C;padding:3px 8px;border-radius:999px}
.cmpt .off{display:inline-block;background:var(--ember);color:#fff;font:700 12px/1 var(--f-display);padding:5px 7px;border-radius:4px}
.cmpt .na{color:#b3b3ad;font-size:13px}
.cmpt ul{padding-left:16px;display:grid;gap:4px;margin:0}
.cmpt ul.gl li::marker{color:var(--ember)}
.cmpt th.add,.cmpt td.add{min-width:200px;background:#FAFAF8}
.cmpt th.add>span{display:block;font-size:12px;font-weight:700;color:var(--mute);margin-bottom:8px}
.sug{display:grid;grid-template-columns:40px 1fr 20px;gap:8px;align-items:center;width:100%;text-align:left;padding:6px;border-radius:var(--r2);border:1px solid var(--line);background:#fff;margin-bottom:6px;font-size:12px;line-height:1.3}
.sug img{width:40px;height:40px;object-fit:contain;border-radius:6px;background:var(--paper)}
.sug i{font-style:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sug b{color:var(--ember);font-size:18px}
.sug:hover{border-color:var(--gold)}
@media (max-width:860px){
  #cmpM{padding:0;align-items:flex-end}
  #cmpM .sheet.wide{max-width:none;border-radius:var(--r4) var(--r4) 0 0;padding:var(--s3) var(--s2) var(--s2);max-height:94vh}
  .cmp-scroll{max-height:72vh}
  .cmpt thead th{min-width:150px}
  .cmpt tbody th,.cmpt thead th.corner{width:96px;min-width:96px;padding:10px}
  .cmpt th,.cmpt td{padding:10px;font-size:13px}
  .cmpt thead img{max-width:110px}
  .cmpt .pz{font-size:16px}
  .cmpt th.add,.cmpt td.add{min-width:160px}
}
.sw i{display:inline-block;flex:none}
.cmpt tr.grp th{z-index:1}
.cmpt table.only-diff tr.grp.allsame{display:none}
.sw{gap:12px}

/* ===== Khung chọn máy để so sánh ===== */
.cb-add{width:56px;height:56px;border-radius:var(--r2);border:1.5px dashed rgba(255,255,255,.35);color:rgba(255,255,255,.75);font-size:10px;line-height:1.2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;transition:border-color .2s,color .2s}
.cb-add b{font-size:18px;color:var(--gold);line-height:1}
.cb-add:hover{border-color:var(--gold);color:#fff}
.sheet.pick{max-width:860px;width:100%;display:flex;flex-direction:column;max-height:90vh;padding:var(--s4) var(--s4) 0}
.pk-bar{display:flex;gap:var(--s2);margin-bottom:var(--s2)}
.pk-s{flex:1;position:relative;color:var(--ink)}
.pk-s svg{position:absolute;left:14px;top:14px;width:18px;height:18px;stroke:var(--ink-2)}
.pk-s input{width:100%;height:46px;border-radius:999px;border:1.5px solid var(--line);padding:0 16px 0 42px;font:inherit;font-size:15px;outline:none}
.pk-s input:focus{border-color:var(--gold)}
.pk-bar select{height:46px;border-radius:999px;border:1.5px solid var(--line);padding:0 14px;font:inherit;font-size:14px;background:#fff}
.pk-cats{margin-bottom:var(--s2);flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.pk-cats .tab{flex:none}
.pk-list{flex:1;overflow:auto;margin:0 calc(-1 * var(--s4));padding:0 var(--s4);border-top:1px solid var(--line)}
.pk-row{display:grid;grid-template-columns:84px 1fr auto;gap:var(--s2);align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.pk-row.on{background:linear-gradient(90deg,#FFF8EA,transparent)}
.pk-img img{width:84px;height:84px;object-fit:contain;background:var(--paper);border-radius:var(--r2)}
.pk-info{min-width:0;display:flex;flex-direction:column;gap:4px}
.pk-br{font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.pk-n{font-weight:600;font-size:15px;line-height:1.35}
.pk-n:hover{color:var(--ember)}
.pk-spec{display:flex;flex-wrap:wrap;gap:6px}
.pk-spec span{font-size:12px;color:var(--ink-2);background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:3px 8px;max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pk-info .gift{align-self:flex-start;max-width:100%}
.pk-pr{display:flex;flex-direction:column;align-items:flex-end;gap:4px;text-align:right;min-width:140px}
.pk-pr b{font-family:var(--f-display);font-stretch:112%;font-size:18px}
.pk-pr>span{font-size:12px;color:var(--ember)}.pk-pr s{color:var(--mute)}
.pk-btn{margin-top:4px;height:36px;padding:0 16px;border-radius:999px;border:1.5px solid var(--ink);font-weight:700;font-size:13px;transition:background .2s,color .2s}
.pk-btn:hover:not([disabled]){background:var(--ink);color:#fff}
.pk-row.on .pk-btn{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.pk-btn[disabled]{opacity:.4;cursor:not-allowed}
.pk-ft{display:flex;align-items:center;justify-content:space-between;gap:var(--s2);padding:var(--s2) 0 var(--s3);border-top:1px solid var(--line)}
.pk-sel{display:flex;align-items:center;gap:8px}
.pk-sel>span{font-size:13px;color:var(--ink-2);margin-left:4px}
.pk-chip{position:relative;width:48px;height:48px;border-radius:var(--r2);background:var(--paper);border:1px solid var(--line)}
.pk-chip img{width:100%;height:100%;object-fit:contain;border-radius:var(--r2)}
.pk-chip button{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;background:var(--ember);color:#fff;display:flex;align-items:center;justify-content:center}
.pk-chip button svg{width:11px;height:11px}
.pk-chip.empty{border-style:dashed;display:flex;align-items:center;justify-content:center;color:var(--mute);font-size:13px}
.pk-ft .btn[disabled]{opacity:.5;cursor:not-allowed}
.pk-all{display:block;width:100%;margin-bottom:8px;font-size:12px;font-weight:700;color:var(--ember);text-decoration:underline;text-underline-offset:3px;text-align:left}
@media (max-width:860px){
  #pickM{padding:0;align-items:flex-end}
  .sheet.pick{max-width:none;border-radius:var(--r4) var(--r4) 0 0;padding:var(--s3) var(--s2) 0;max-height:94vh}
  .pk-list{margin:0 calc(-1 * var(--s2));padding:0 var(--s2)}
  .pk-bar{flex-direction:column;gap:8px}.pk-bar select{height:40px}
  .pk-row{grid-template-columns:64px 1fr;row-gap:8px}
  .pk-img img{width:64px;height:64px}
  .pk-pr{grid-column:1/-1;flex-direction:row;align-items:center;justify-content:space-between;min-width:0;text-align:left}
  .pk-pr .pk-btn{margin:0 0 0 auto}
  .pk-spec span{max-width:200px}
  .pk-chip{width:40px;height:40px}
  .pk-ft .btn{height:46px;padding:0 18px;font-size:14px}
}
.pk-bar,.pk-cats,.pk-ft,.sheet.pick .drw-hd{flex:none}
.pk-cats{min-height:44px;align-items:center}
.pk-chip.blank{border-style:dashed;display:flex;align-items:center;justify-content:center;color:var(--mute);font-size:13px;padding:0}
@media (max-width:860px){.pk-sel>span{display:none}.pk-cats{min-height:40px}.pk-cats .tab{height:36px;padding:0 14px;font-size:13px}}
/* đầu cột so sánh gọn */
.cmpt thead th.ph2{min-width:220px;padding:12px 40px 12px 14px;vertical-align:top}
.ch-top{display:grid!important;grid-template-columns:52px 1fr;gap:10px;align-items:center}
.cmpt thead .ch-top img{width:52px;height:52px;max-width:none;margin:0;border-radius:8px}
.cmpt thead .ch-top span{min-height:0;margin:0;font-size:13px;-webkit-line-clamp:2}
.ch-pr{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 8px;margin:10px 0 8px}
.ch-pr b{font-family:var(--f-display);font-stretch:112%;font-size:18px;color:var(--ink)}
.ch-pr s{font-size:12px;color:var(--mute);font-weight:400}
.ch-pr em{font-style:normal;font-size:11px;font-weight:700;background:#E6F4EA;color:#1E7A3C;padding:2px 8px;border-radius:999px}
.ch-cart{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:999px;background:var(--gold);color:var(--ink);font-size:12px;font-weight:700}
.ch-cart svg{width:14px;height:14px}
.ch-cart:hover{background:#f2b93f}
.cmp-x{top:10px;right:8px;width:24px;height:24px}
.cmpt thead th.corner{vertical-align:middle}
.cmpt th.add{padding:12px}
.cmpt th.add .sug{grid-template-columns:32px 1fr 16px;padding:5px;margin-bottom:4px}
.cmpt th.add .sug img{width:32px;height:32px}
.cmpt th.add .sug:nth-of-type(n+4){display:none}
@media (max-width:860px){.cmpt thead th.ph2{min-width:160px;padding:10px 30px 10px 10px}.ch-top{grid-template-columns:40px 1fr}.cmpt thead .ch-top img{width:40px;height:40px}.ch-pr b{font-size:15px}.ch-cart{height:28px;padding:0 10px;font-size:11px}}

/* ===== Menu danh mục nổi bật + bảng xổ sản phẩm ===== */
.hdr .wrap{position:static}
.nav{gap:2px;align-self:stretch;align-items:stretch}
.nv{position:static;display:flex;align-items:center}
.nav .nv>a{display:flex;align-items:center;gap:7px;padding:8px 11px;border-radius:999px;color:rgba(255,255,255,.86);font-size:14px;font-weight:600;border:1px solid transparent;transition:background .2s,border-color .2s,color .2s}
.nav .nv>a::after{display:none}
.nv-ic{display:inline-flex;font-style:normal}
.nv-ic svg{width:18px;height:18px;color:var(--gold)}
.nv>a em{font-style:normal;font:700 10px/1 var(--f-display);min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:rgba(233,169,43,.18);color:var(--gold);display:inline-flex;align-items:center;justify-content:center}
.nav .nv:hover>a,.nav .nv>a.on,.nav .nv:focus-within>a{background:rgba(233,169,43,.13);border-color:rgba(233,169,43,.45);color:#fff}
.nav .nv>a.on{box-shadow:inset 0 -2px 0 var(--gold)}
.mega{position:absolute;left:0;right:0;top:100%;padding-top:0;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s,transform .25s var(--ease),visibility 0s .25s;pointer-events:none}
.nv:hover .mega,.nv:focus-within .mega{opacity:1;visibility:visible;transform:none;transition:opacity .2s .08s,transform .25s var(--ease) .08s;pointer-events:auto}
.mega-in{max-width:var(--wrap);margin:0 auto;background:#fff;border-radius:0 0 var(--r4) var(--r4);box-shadow:0 30px 60px rgba(0,0,0,.28);display:grid;grid-template-columns:260px 1fr;overflow:hidden;color:var(--ink)}
.mg-head{background:var(--ink);color:#fff;padding:var(--s4);display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.mg-ic{width:44px;height:44px;border-radius:12px;background:rgba(233,169,43,.15);display:flex;align-items:center;justify-content:center}
.mg-ic svg{width:24px;height:24px;color:var(--gold)}
.mg-head b{font-family:var(--f-display);font-stretch:112%;font-size:20px;line-height:1.2}
.mg-head p{font-size:13px;color:rgba(255,255,255,.65);line-height:1.5;margin-bottom:6px}
.mg-list{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s2);padding:var(--s3)}
.nav .mg-list a{display:flex;flex-direction:column;gap:6px;padding:10px;border-radius:var(--r3);border:1px solid var(--line);color:var(--ink);font-size:13px;font-weight:600;line-height:1.35;white-space:normal;transition:border-color .2s,transform .25s var(--ease)}
.nav .mg-list a::after{display:none}
.nav .mg-list a:hover{border-color:var(--gold);transform:translateY(-2px)}
.mg-list img{width:100%;aspect-ratio:1;object-fit:contain;background:var(--paper);border-radius:var(--r2)}
.mg-list span{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mg-list b{font-family:var(--f-display);font-stretch:112%;font-size:15px;color:var(--ember)}
@media (max-width:1400px){.nv>a em{display:none}.nav .nv>a{padding:8px 9px;font-size:13.5px}}
@media (max-width:1200px){.nv-ic{display:none}}
@media (max-width:860px){
  .mega{display:none}
  .nav.open .nv{display:block}
  .nav.open .nv>a{border-radius:0;padding:var(--s2) 0;font-size:17px;border:0;border-bottom:1px solid rgba(255,255,255,.06);background:none;gap:12px}
  .nav.open .nv-ic{display:inline-flex}.nav.open .nv-ic svg{width:22px;height:22px}
  .nav.open .nv>a em{display:inline-flex;margin-left:auto}
}
/* chừa chỗ cho nút gọi trên đầu trang */
.hdr .wrap{max-width:1360px;gap:var(--s2)}
.nv>a em{display:none}
.nav .nv>a{padding:8px 10px;font-size:13.5px}
.nav .nv:last-child{display:none}
.hdr-call{padding:10px 14px;font-size:13.5px}
@media (max-width:1320px){.hdr-call{font-size:0;gap:0;width:44px;height:44px;padding:0;justify-content:center}.hdr-call svg{width:18px;height:18px}}
@media (max-width:1200px){.nv-ic{display:none}.nav .nv>a{padding:8px}}
@media (max-width:860px){.nav.open .nv:last-child{display:block}.nav.open .nv>a em{display:inline-flex;margin-left:auto}}

/* ===== Sửa theo kết quả đo Lighthouse ===== */
:root{--mute:#666662;--ember-t:#A9470F}
.eyebrow{color:var(--ember-t)}
.dark .eyebrow,.stage .eyebrow,.page-hero .eyebrow,.band .eyebrow,.ftr .eyebrow,.mota-in .eyebrow{color:var(--gold)}
.mota-in .eyebrow,.ud-box .eyebrow,.light .eyebrow{color:var(--ember-t)}
.tag,.price .off,.pd .price .off,.cmpt .off,.sc-pr em{background:#B04A13}
.price .ask,.mg-list b,.pk-pr>span,.gift b,.gift svg{color:var(--ember-t)}
.pd .crumb,.pd .crumb a,.vat,.price s,.note{color:var(--mute)}
.sr{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.giftbox h2.bx-t{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-stretch:112%;font-size:17px;margin-bottom:12px}
.giftbox h2.bx-t span{width:32px;height:32px;border-radius:10px;background:var(--gold);color:var(--ink);display:flex;align-items:center;justify-content:center}
.giftbox h2.bx-t svg{width:18px;height:18px}
.box h2.bx-t{font-family:var(--f-display);font-stretch:112%;font-size:16px;margin-bottom:var(--s2)}
/* ảnh tĩnh của camera 3D trên điện thoại, thay bằng 3D khi khách chạm hoặc cuộn */
@media (max-width:860px){html:not(.live3d) .stage-bg{background:url(../img/cam3d-m.webp) center 36px/390px auto no-repeat}}

/* v17: thẻ danh mục có khung ảnh riêng, không đè chữ */
.cat{justify-content:flex-start;gap:var(--s2);min-height:0}
.cat .thumb{position:static;display:block;width:100%;height:150px;margin-top:auto;object-fit:contain;background:#fff;border-radius:var(--r2);padding:8px;mix-blend-mode:normal;opacity:1;transform:none}
.cat:not(.feat) .thumb{background:var(--paper)}
.cat:hover .thumb{transform:scale(1.03)}
.cat p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
@media (max-width:560px){.cat .thumb{height:110px}}
/* v17: mega menu gọn, hiện chậm hơn để lướt qua không bật */
.mega-in{grid-template-columns:220px 1fr;border-radius:0 0 var(--r3) var(--r3);box-shadow:0 18px 40px rgba(0,0,0,.22)}
.mg-head{padding:var(--s2) var(--s3);gap:6px;justify-content:center}
.mg-ic{display:none}
.mg-head b{font-size:16px}
.mg-head p{display:none}
.mg-list{grid-template-columns:repeat(2,1fr);gap:8px;padding:var(--s2)}
.nav .mg-list a{flex-direction:row;align-items:center;gap:10px;padding:6px 10px 6px 6px;font-size:13px}
.nav .mg-list a:hover{transform:none;background:var(--paper)}
.mg-list img{width:52px;height:52px;flex:none;aspect-ratio:auto;border-radius:8px}
.mg-list span{flex:1;-webkit-line-clamp:2}
.mg-list b{font-size:13px;flex:none;white-space:nowrap}
.nv:hover .mega,.nv:focus-within .mega{transition:opacity .18s .25s,transform .22s var(--ease) .25s,visibility 0s .25s}

/* v18: trang sản phẩm phân cấp nút, thông số chính, thanh đáy có giá */
.buy2{display:grid;grid-template-columns:1.4fr 1fr;gap:var(--s1);margin-top:var(--s3)}
.buy2 .btn{height:54px;font-size:16px;justify-content:center}
.buy2 #buy{font-weight:800}
.ks{margin-top:var(--s3);border:1px solid var(--line);border-radius:var(--r3);padding:var(--s2) var(--s3);background:#fff}
.ks dl{display:grid;grid-template-columns:1fr 1fr;gap:10px var(--s3)}
.ks dl div{min-width:0}
.ks dt{font-size:12px;color:var(--mute);font-weight:600}
.ks dd{margin:2px 0 0;font-size:14px;font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ks a{display:inline-block;margin-top:10px;font-size:13px;font-weight:700;color:var(--ember-t);text-decoration:underline;text-underline-offset:3px}
.cmpb.inline span{display:inline!important}
@media (max-width:860px){
  .mbar.mb-p{grid-template-columns:1fr 1.1fr 48px 48px;align-items:center}
  .mbar.mb-p .mp{display:flex;flex-direction:column;line-height:1.1}
  .mbar.mb-p .mp b{font-family:var(--f-display);font-stretch:112%;font-size:17px;color:var(--ember-t)}
  .mbar.mb-p .mp span{font-size:11px;font-weight:700;color:var(--ember-t)}
  .mbar.mb-p button.c1{height:48px;border:0;border-radius:999px;background:var(--gold);color:var(--ink);font-weight:800;font-size:16px}
  .mbar.mb-p .c3{width:48px;padding:0;background:var(--ink);color:var(--gold)}
  .mbar.mb-p .c3 svg{width:22px;height:22px}
}
@media (max-width:560px){
  .buy2{grid-template-columns:1fr}
  .ks{padding:var(--s2)}
  .ks dl{grid-template-columns:1fr 1fr;gap:8px 12px}
  /* trang chủ: mỗi nhóm thành hàng vuốt ngang */
  body[data-page=home] #g-nd,body[data-page=home] #g-cam,body[data-page=home] #g-and,body[data-page=home] #g-ud{display:grid;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:68%;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;margin:0 calc(-1*var(--s2));padding:4px var(--s2) 8px;gap:12px}
  body[data-page=home] #g-nd>*,body[data-page=home] #g-cam>*,body[data-page=home] #g-and>*,body[data-page=home] #g-ud>*{scroll-snap-align:start}
  body[data-page=home] #g-nd::-webkit-scrollbar,body[data-page=home] #g-cam::-webkit-scrollbar,body[data-page=home] #g-and::-webkit-scrollbar,body[data-page=home] #g-ud::-webkit-scrollbar{display:none}
}
/* v18: ngăn bóng giỏ hàng (đang đóng) tràn vào mép phải màn hình */
.drw:not(.show){box-shadow:none}
@media (max-width:560px){body[data-page=home] #g-nd,body[data-page=home] #g-cam,body[data-page=home] #g-and,body[data-page=home] #g-ud{scroll-padding-inline:var(--s2)}}
.ks+.giftbox{margin-top:var(--s2)}