:root{--red:#d62828;--red2:#b01e1e;--dark:#14181f;--gray:#f4f5f7;--line:#e5e7eb;--text:#1f2430;--mut:#6b7280}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--text);background:#fff;line-height:1.5}
a{color:inherit;text-decoration:none}img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}.narrow{max-width:760px;margin:24px auto}
.mut{color:var(--mut);font-size:13px}
.topbar{background:var(--dark);color:#cfd3da;font-size:13px;padding:6px 0}
.topbar .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:4px}
.header{position:sticky;top:0;z-index:20;background:#fff;box-shadow:0 1px 6px rgba(0,0,0,.08)}
.header-in{display:flex;align-items:center;gap:16px;padding-top:12px;padding-bottom:12px}
.logo{font-size:22px;display:flex;align-items:baseline;gap:6px;white-space:nowrap}
.logo b{color:var(--red)}.logo small{font-size:12px;color:var(--mut)}
.search{flex:1;display:flex}
.search input{flex:1;padding:10px 14px;border:2px solid var(--line);border-right:0;border-radius:8px 0 0 8px;font-size:14px;outline:none;min-width:0}
.search input:focus{border-color:var(--red)}
.search button{background:var(--red);color:#fff;border:0;padding:0 20px;border-radius:0 8px 8px 0;cursor:pointer;font-weight:600}
.cart-btn{background:var(--dark);color:#fff;border:0;padding:10px 16px;border-radius:8px;cursor:pointer;font-size:14px;white-space:nowrap}
.cart-btn span{background:var(--red);border-radius:99px;padding:1px 8px;margin-left:4px;font-size:12px}
.nav{background:var(--gray);border-top:1px solid var(--line)}
.nav{position:relative}
.nav .wrap{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;cursor:grab;user-select:none;scroll-behavior:auto}
.nav .wrap::-webkit-scrollbar{display:none}
.nav .wrap.drag{cursor:grabbing}
.nav .wrap a{-webkit-user-drag:none}
.nav a{padding:10px 14px;font-size:14px;font-weight:600;white-space:nowrap;border-bottom:3px solid transparent}
.nav a:hover,.nav a.on{color:var(--red);border-color:var(--red)}
.hero{color:#fff;padding:16px}
.hero-in{display:flex;align-items:center;justify-content:space-between;gap:24px;background:linear-gradient(120deg,#14181f 0%,#2a1215 100%);border-radius:16px;padding:22px 32px!important}
.hero .tag{color:#ff6b6b;font-weight:700;letter-spacing:2px;font-size:13px}
.hero h1{font-size:30px;line-height:1.2;margin:4px 0 6px;max-width:820px}
.hero p{color:#cfd3da;max-width:760px;margin-bottom:12px}
.hero-art{font-size:72px;margin-right:0;filter:drop-shadow(0 10px 30px rgba(214,40,40,.5))}
.btn{display:inline-block;background:var(--red);color:#fff;border:0;padding:11px 24px;border-radius:8px;font-weight:700;cursor:pointer;font-size:15px;text-align:center}
.btn:hover{background:var(--red2)}.btn:disabled{background:#c9ccd3;cursor:not-allowed}
.btn.ghost{background:transparent;border:2px solid #fff;margin-left:8px}.btn.ghost:hover{background:#fff;color:var(--dark)}
.btn.full{width:100%;display:block}.btn.sm{padding:7px 14px;font-size:13px}
.btn.gray{background:#e5e7eb;color:var(--text)}.btn.gray:hover{background:#d1d5db}
.btn.dark{background:var(--dark)}.btn.dark:hover{background:#000}
.perks{display:grid;grid-template-columns:repeat(var(--n,4),1fr);gap:12px;margin:24px auto}
.perks div{background:var(--gray);border-radius:10px;padding:14px;display:flex;flex-direction:column}
.perks small{color:var(--mut)}
.finder{background:#fff7f7;border:1px solid #f3c9c9;border-radius:12px;padding:14px;margin:8px 0 0;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.toolbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin:22px 0 16px}
.toolbar h2 small{font-size:14px;color:var(--mut);font-weight:400;margin-left:6px}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.chk{font-size:14px;display:flex;gap:4px;align-items:center;cursor:pointer}
select,input,textarea{font:inherit}
select{padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;background:#fff}
.grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;display:flex;flex-direction:column;transition:.2s;position:relative}
.card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-3px)}
.thumb{height:150px;display:flex;align-items:center;justify-content:center;font-size:64px;position:relative;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:8px;left:8px;background:var(--red);color:#fff;font-size:12px;font-weight:700;padding:2px 8px;border-radius:6px;z-index:1}
.badge.out{background:#4b5563;left:auto;right:8px}.badge.in{position:static;margin-left:8px;display:inline-block}
.info{padding:12px;display:flex;flex-direction:column;gap:4px;flex:1}
.brand{font-size:12px;color:var(--mut)}
.info h3{font-size:15px;line-height:1.3;min-height:40px}
.fit{font-size:12px;color:var(--mut)}
.price{margin-top:auto;padding-top:6px}.price b{color:var(--red);font-size:18px}
.price s{color:var(--mut);font-size:13px;margin-left:6px}
.price.big b{font-size:28px}
.stars{color:#f59e0b;font-size:13px}
.add{margin:0 12px 12px;background:var(--dark);color:#fff;border:0;padding:9px;border-radius:8px;cursor:pointer;font-weight:600}
.add:hover{background:var(--red)}.add:disabled{background:#c9ccd3;cursor:not-allowed}
.empty{text-align:center;color:var(--mut);padding:40px;grid-column:1/-1}
.contact{background:var(--gray);margin-top:48px;padding:40px 0}
.contact-in{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.contact h2{margin-bottom:12px}.contact p{margin:6px 0}
.cform{display:flex;flex-direction:column;gap:10px}
.cform input,.cform textarea,.f input,.f textarea,.f select,.rvform input,.rvform textarea,.rvform select,.coupon input{padding:10px 12px;border:1px solid var(--line);border-radius:8px;color:var(--text);width:100%}
.footer{background:var(--dark);color:#9aa0ab;font-size:14px;margin-top:40px}
.fgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px;padding-top:28px;padding-bottom:20px}
.fgrid b{color:#fff;display:block;margin-bottom:8px}.fgrid a{display:block;padding:2px 0}.fgrid a:hover{color:#fff}.fgrid p{margin:3px 0}
.copy{text-align:center;padding:12px;border-top:1px solid #272c36;font-size:13px}
.float{position:fixed;right:14px;bottom:16px;display:flex;flex-direction:column;gap:10px;z-index:30}
.float a{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px;box-shadow:0 4px 12px rgba(0,0,0,.3)}
.float .fz{background:#0068ff}.float .fc{background:#16a34a;font-size:22px}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);opacity:0;pointer-events:none;transition:.25s;z-index:40}
.overlay.on{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(400px,100%);background:#fff;z-index:50;transform:translateX(100%);transition:.3s;display:flex;flex-direction:column}
.drawer.on{transform:none}
.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:16px;border-bottom:1px solid var(--line);font-size:18px}
.drawer-head button{background:none;border:0;font-size:20px;cursor:pointer}
.drawer-body{flex:1;overflow:auto;padding:12px 16px}
.ci{display:flex;gap:10px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.ci .ic{font-size:30px;width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:8px;flex:none;overflow:hidden}
.ci .ic img{width:100%;height:100%;object-fit:cover}
.ci .t{flex:1;font-size:14px}.ci .t b{display:block}.ci .t span{color:var(--red);font-weight:700}.ci .t em{color:#b45309;font-size:12px;font-style:normal;display:block}
.qty{display:flex;align-items:center;gap:6px}
.qty button{width:28px;height:28px;border:1px solid var(--line);background:#fff;border-radius:6px;cursor:pointer}
.qty input{width:44px;text-align:center;border:1px solid var(--line);border-radius:6px;padding:5px}
.drawer-foot{padding:16px;border-top:1px solid var(--line)}
.total{display:flex;justify-content:space-between;margin-bottom:10px;font-size:17px}.total b{color:var(--red)}
.link{display:block;margin:10px auto 0;background:none;border:0;color:var(--mut);cursor:pointer;text-decoration:underline}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--dark);color:#fff;padding:10px 20px;border-radius:8px;z-index:90;font-size:14px;animation:t 2.4s forwards}
.toast.err{background:var(--red)}
@keyframes t{0%,80%{opacity:1}100%{opacity:0}}
/* trang sản phẩm */
.pdp{padding-top:16px}.crumb{font-size:13px;color:var(--mut);margin-bottom:12px}.crumb a:hover{color:var(--red)}
.pgrid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.pmain{border-radius:14px;overflow:hidden;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center}
.pmain img{width:100%;height:100%;object-fit:cover}.emo{font-size:150px}
.thumbs{display:flex;gap:8px;margin-top:8px;overflow-x:auto}
.thumbs img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:2px solid transparent;cursor:pointer}.thumbs img.on{border-color:var(--red)}
.pright{display:flex;flex-direction:column;gap:10px}.pright h1{font-size:26px;line-height:1.25}
.stock.ok{color:#15803d}.stock.low{color:#b45309}.stock.out{color:#b91c1c;font-weight:700}
.chip{display:inline-block;background:var(--gray);border-radius:99px;padding:2px 10px;font-size:12px;margin:2px 4px 2px 0}
.buyrow{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.buyrow .qty input{width:54px;padding:9px 4px}
.pperks{list-style:none;font-size:14px;color:var(--mut);display:flex;flex-direction:column;gap:3px}
.pbox2{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin:20px 0}
.pbox2 h2{margin-bottom:10px;font-size:19px}.pbox2 h3{margin:14px 0 6px}.pbox2 p{margin:6px 0}
.spec{width:100%;border-collapse:collapse;font-size:14px}.spec th,.spec td{padding:8px;border:1px solid var(--line);text-align:left}.spec th{background:var(--gray);width:35%}
.rv{border-bottom:1px solid var(--line);padding:8px 0}.st{color:#f59e0b}.rate{font-size:14px}
.rvform{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
/* thanh toán */
.co{display:grid;grid-template-columns:1.2fr 1fr;gap:20px;margin:24px auto}
.box{background:#fff;border-radius:12px;padding:20px;box-shadow:0 1px 6px rgba(0,0,0,.08);border:1px solid var(--line)}
.box h2{font-size:18px;margin-bottom:14px}.side{align-self:start}
.f{display:flex;flex-direction:column;gap:4px;margin-bottom:12px;font-size:13px;color:var(--mut)}
.pay{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.pay label{display:flex;gap:10px;align-items:flex-start;border:1px solid var(--line);border-radius:8px;padding:10px;cursor:pointer;font-size:14px}
.pay label:has(input:checked){border-color:var(--red);background:#fff5f5}.pay small{color:var(--mut)}
.bank{display:none;background:var(--gray);border-radius:8px;padding:10px;font-size:13px;margin-bottom:14px}
.line{display:flex;justify-content:space-between;gap:10px;padding:6px 0;font-size:14px}
.line.t{border-top:1px solid var(--line);margin-top:6px;padding-top:10px;font-size:18px}.line.t b{color:var(--red)}
.coupon{display:flex;gap:8px;margin:10px 0 4px}
.err{color:var(--red);font-size:13px;margin:4px 0 10px;min-height:0}
.box.ok{max-width:480px;margin:50px auto;text-align:center}.bigi{font-size:60px}
.code{background:var(--gray);display:inline-block;padding:6px 16px;border-radius:8px;font-weight:700;font-size:20px;margin:10px 0}
.prose p{margin:10px 0}.prose h1{margin-bottom:10px}
.tl{display:flex;gap:6px;margin:14px 0;flex-wrap:wrap}.tl span{padding:6px 12px;border-radius:99px;background:var(--gray);font-size:13px;color:var(--mut)}.tl span.on{background:var(--red);color:#fff;font-weight:700}
@media(max-width:800px){
 .header-in{flex-wrap:wrap}.search{order:3;flex-basis:100%}
 .hero h1{font-size:26px}.hero-art{font-size:64px;margin:0}
 .perks{grid-template-columns:1fr 1fr}.contact-in,.pgrid,.co,.fgrid{grid-template-columns:1fr}
 .topbar .wrap span:last-child{display:none}.emo{font-size:100px}
}

.cbtns{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.cb{display:block;text-align:center;padding:13px;border-radius:10px;color:#fff;font-weight:700;font-size:16px}
.cb.zl{background:#0068ff}.cb.fb{background:#1877f2}.cb.tl{background:#16a34a}.cb:hover{opacity:.9}
.float .ff{background:#1877f2;font-size:22px;font-family:Georgia,serif}
.hero .btn{padding:8px 20px;font-size:14px}
.hero .tag{font-size:12px}

.navb{position:absolute;top:0;bottom:0;width:44px;border:0;cursor:pointer;font-size:22px;color:var(--dark);z-index:2;display:none}
.navb.l{left:0;background:linear-gradient(90deg,var(--gray) 55%,transparent)}
.navb.r{right:0;background:linear-gradient(270deg,var(--gray) 55%,transparent)}
.navb:hover{color:var(--red)}.navb.on{display:block}
@media(max-width:1100px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:850px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:560px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.info h3{font-size:14px}}

[hidden]{display:none!important}
.pager{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin:26px 0}
.pager button,.pager span{min-width:38px;height:38px;padding:0 10px;border:1px solid var(--line);background:#fff;border-radius:8px;font:inherit;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.pager span{border:0;cursor:default;min-width:20px;padding:0}
.pager button:hover:not(:disabled){border-color:var(--red);color:var(--red)}
.pager button.on{background:var(--red);border-color:var(--red);color:#fff}
.pager button:disabled{opacity:.4;cursor:not-allowed}
.trk{border:1px solid var(--line);border-radius:10px;padding:12px;margin-top:12px}

.track-btn{border:2px solid var(--dark);color:var(--dark);padding:8px 14px;border-radius:8px;font-size:14px;font-weight:600;white-space:nowrap}
.track-btn:hover{background:var(--dark);color:#fff}
@media(max-width:800px){.track-btn{padding:8px 10px}}

.paybox{text-align:center;margin:14px 0}
.qr{width:min(260px,100%);margin:8px auto;background:#fff;padding:6px;border:1px solid var(--line);border-radius:12px}
.qr svg{width:100%;height:auto;display:block}
/* ---- chống chữ dài làm tràn / kéo ngang trên điện thoại ---- */
html,body{max-width:100%;overflow-x:clip}
body{overflow-wrap:anywhere}
img,svg,video,canvas{max-width:100%}
.card,.info,.pright,.ci .t,.box,.pbox2,.line span,.wrap>*{min-width:0}
.info h3,.info .fit,.pright h1,.crumb,.pbox2 p,.spec td,.spec th,.ci .t b,.line span,.paybox,.bank,.err,.code{overflow-wrap:anywhere;word-break:break-word}
.spec{table-layout:fixed}
.code{max-width:100%}
.nav a,.nav .wrap{overflow-wrap:normal}
@media(max-width:800px){
 .hero{padding:12px}.hero-in{flex-direction:column;align-items:flex-start;padding:18px 18px!important}
 .hero .btn{margin:4px 8px 4px 0}.hero .btn.ghost{margin-left:0}
 .hero h1{font-size:24px}.hero-art{display:none}
 .pright h1{font-size:21px}.price.big b{font-size:24px}
 .buyrow .btn{flex:1 1 140px}
 .toolbar{gap:8px}.filters select{max-width:100%;min-width:0;flex:1 1 130px}
 .finder .filters{width:100%}.finder select{flex:1 1 130px;min-width:0}
}
@media(max-width:560px){.header-in{gap:10px}.logo{font-size:19px}.logo small{display:none}.track-btn,.cart-btn{flex:1;text-align:center}.perks{gap:8px}.perks div{padding:10px}}
@media(max-width:560px){.logo{flex:1 1 100%}.track-btn,.cart-btn{flex:1 1 0;padding:10px 6px;font-size:14px;white-space:nowrap}.header-in{padding-top:8px;padding-bottom:8px}}
.nav .wrap>*{flex:none;min-width:auto;white-space:nowrap}
.price{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 6px}.price s{margin-left:0}
.price b,.price s,.line span:last-child,.line b,.total b,.badge,.cart-btn span{white-space:nowrap;overflow-wrap:normal;word-break:normal}
.line>span:first-child{flex:1 1 0;min-width:0}
.line>span:last-child,.line>b{flex:none;min-width:auto;text-align:right}
/* ---- sản phẩm dễ nhìn hơn (ảnh đủ khung, thẻ gọn) ---- */
.thumb:has(img){background:#fff!important}
.thumb img{object-fit:contain;padding:6px}
.cart-fab{display:none}
@media(max-width:800px){
 .header{position:static}
 .grid{gap:10px}
 .thumb{height:auto;aspect-ratio:1/1;font-size:56px}
 .info{padding:10px 10px 6px;gap:3px}
 .info .brand{font-size:11px}
 .info h3{font-size:14px;line-height:1.3;min-height:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
 .info .fit{font-size:11.5px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
 .price{padding-top:4px}.price b{font-size:16px}.price s{font-size:12px}
 .add{margin:0 10px 10px;padding:9px 4px;font-size:13px}
 .badge{font-size:11px;padding:1px 6px}
 .cart-fab{display:flex;position:fixed;left:14px;bottom:16px;z-index:30;align-items:center;gap:6px;background:var(--dark);color:#fff;border:0;border-radius:99px;padding:12px 16px;font-size:15px;font-weight:700;box-shadow:0 4px 12px rgba(0,0,0,.35);cursor:pointer}
 .cart-fab span{background:var(--red);border-radius:99px;padding:0 8px;font-size:13px;min-width:22px;text-align:center}
}
@media(max-width:560px){
 .header-in{flex-wrap:wrap;align-items:center}
 .logo{flex:1 1 auto;font-size:19px}
 .track-btn,.cart-btn{flex:none;padding:8px 10px;font-size:0;line-height:1}
 .track-btn::before{content:"📦";font-size:21px}
 .cart-btn::before{content:"🛒";font-size:21px}
 .cart-btn span{font-size:12px;margin-left:4px;vertical-align:middle}
}
@media(max-width:800px){
 .toolbar .filters{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:8px}.toolbar .filters .chk{grid-column:1/-1}.toolbar .filters select{width:100%}
 body{padding-bottom:70px}
}