:root{
  --paper:#ffffff; --porcelain:#eef1f4; --line:#dde2e8; --ink:#1a2230; --muted:#5b6676;
  --red:#d7141a; --red-dark:#a80f14; --steel:#3d5a80; --steel-soft:#e6edf5; --ok:#1d7a46;
  --r:10px; --wrap:1240px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--porcelain);color:var(--ink);font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:15px;line-height:1.6}
a{color:var(--steel);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
:focus-visible{outline:3px solid var(--steel);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
h1,h2,h3{line-height:1.25;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(22px,3vw,30px)}
h2{font-size:clamp(19px,2.2vw,23px)}
h3{font-size:17px}
p{margin:0 0 1em}
.model{font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* Header */
.topbar{background:var(--ink);color:#c9d2de;font-size:13px}
.topbar .wrap{display:flex;gap:16px;justify-content:space-between;align-items:center;min-height:34px;flex-wrap:wrap}
.topbar a{color:#fff}
.hdr{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.hdr .wrap{display:flex;align-items:center;gap:20px;min-height:68px}
.logo{display:flex;flex-direction:column;line-height:1.1;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo b{font-size:23px;letter-spacing:-.02em}
.logo b span{color:var(--red)}
.logo small{font-size:11.5px;color:var(--muted)}
.search{flex:1;position:relative;max-width:560px}
.search input{width:100%;height:44px;border:1.5px solid var(--line);border-radius:999px;padding:0 48px 0 18px;font:inherit;background:var(--porcelain)}
.search input:focus{border-color:var(--steel);background:#fff;outline:none}
.search button{position:absolute;right:4px;top:4px;height:36px;width:40px;border:0;border-radius:999px;background:var(--ink);color:#fff;cursor:pointer;display:grid;place-items:center}
.sresults{position:absolute;left:0;right:0;top:50px;background:#fff;border:1px solid var(--line);border-radius:var(--r);max-height:420px;overflow:auto;display:none;z-index:60}
.sresults.open{display:block}
.sresults a{display:flex;gap:12px;align-items:center;padding:8px 12px;color:var(--ink);border-bottom:1px solid var(--porcelain)}
.sresults a:hover,.sresults a.act{background:var(--steel-soft);text-decoration:none}
.sresults img{width:44px;height:44px;object-fit:contain}
.sresults .p{margin-left:auto;color:var(--red);font-weight:700;white-space:nowrap}
.hotline{display:flex;flex-direction:column;line-height:1.15;color:var(--ink);white-space:nowrap}
.hotline small{color:var(--muted);font-size:12px}
.hotline b{color:var(--red);font-size:18px}
.cartbtn{position:relative;display:flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;white-space:nowrap}
.cartbtn i{font-style:normal;background:var(--red);color:#fff;border-radius:999px;font-size:12px;min-width:20px;height:20px;display:inline-grid;place-items:center;padding:0 5px}
.menutoggle{display:none;border:0;background:none;font-size:24px;cursor:pointer;color:var(--ink)}
.nav{background:var(--paper);border-bottom:1px solid var(--line)}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:2px;flex-wrap:wrap}
.nav>.wrap>ul>li{position:relative}
.nav>.wrap>ul>li>a,.nav>.wrap>ul>li>span{display:block;padding:11px 14px;color:var(--ink);font-weight:600;cursor:pointer}
.nav li:hover>.drop,.nav li:focus-within>.drop{display:grid}
.drop{display:none;position:absolute;left:0;top:100%;background:#fff;border:1px solid var(--line);border-radius:0 0 var(--r) var(--r);min-width:250px;padding:8px;z-index:50}
.drop a{padding:7px 10px;border-radius:6px;color:var(--ink)}
.drop a:hover{background:var(--porcelain);text-decoration:none}

/* Blocks */
.crumbs{font-size:13px;color:var(--muted);padding-top:12px;padding-bottom:12px}
.crumbs a{color:var(--muted)}
.box{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:18px}
.sec{margin:22px 0}
.sec-h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}
.sec-h h2{margin:0}

/* Hero: model finder */
.hero{background:var(--ink);color:#fff;border-radius:var(--r);padding:28px;margin:18px 0;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:28px;align-items:center}
.hero h1{font-size:clamp(24px,3.4vw,36px);margin-bottom:.35em}
.hero p{color:#c9d2de;max-width:52ch}
.finder{display:flex;gap:8px;margin-top:14px;max-width:520px}
.finder input{flex:1;height:50px;border-radius:999px;border:0;padding:0 20px;font:inherit;font-size:16px}
.finder button{height:50px;border:0;border-radius:999px;padding:0 22px;background:var(--red);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.finder-hint{font-size:13px;color:#9aa7b8;margin-top:8px}
.finder-hint button{background:none;border:0;color:#fff;font:inherit;text-decoration:underline;cursor:pointer;padding:0 2px}
.hero-models{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hero-models a{background:#fff;border-radius:var(--r);padding:12px;color:var(--ink);display:grid;grid-template-columns:64px 1fr;gap:10px;align-items:center}
.hero-models a:hover{text-decoration:none;outline:2px solid var(--red)}
.hero-models img{width:64px;height:64px;object-fit:contain}
.hero-models .m{font-weight:700;font-size:13px;overflow-wrap:anywhere}
.hero-models .pr{color:var(--red);font-weight:700}

.perks{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 18px}
.perks div{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;font-size:14px}
.perks b{display:block}

.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:10px}
.cats a{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:12px 8px;text-align:center;color:var(--ink);font-weight:600;font-size:14px}
.cats a:hover{border-color:var(--red);text-decoration:none}
.cats img{width:72px;height:72px;object-fit:contain;margin:0 auto 6px}
.cats small{display:block;color:var(--muted);font-weight:400}

/* Product grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:14px;display:flex;flex-direction:column;position:relative}
.card:hover{border-color:#b7c2cf}
.card .img{aspect-ratio:1;display:grid;place-items:center;margin-bottom:10px}
.card .img img{max-height:100%;object-fit:contain}
.card .m{font-weight:800;font-size:16px;color:var(--ink);word-break:break-word}
.card .t{font-size:13.5px;color:var(--muted);line-height:1.4;margin:2px 0 8px;min-height:2.8em}
.card a.cover{position:absolute;inset:0;z-index:1}
.card .chips{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:8px}
.chip{display:inline-block;font-size:12px;border-radius:999px;padding:2px 9px;background:var(--steel-soft);color:var(--steel);font-weight:600}
.price{margin-top:auto}
.price .now{color:var(--red);font-size:19px;font-weight:800}
.price .old{color:var(--muted);text-decoration:line-through;font-size:13px;margin-left:6px}
.off{position:absolute;top:10px;left:10px;background:var(--red);color:#fff;font-weight:700;font-size:12px;border-radius:6px;padding:2px 7px}

/* Category toolbar */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:0 0 12px}
.toolbar .chipbtn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;font:inherit;font-size:14px;cursor:pointer;color:var(--ink)}
.toolbar .chipbtn[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.toolbar select{margin-left:auto;height:36px;border:1px solid var(--line);border-radius:999px;padding:0 12px;font:inherit;background:#fff}
.subcats{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 14px}
.subcats a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;color:var(--ink);font-size:14px}
.subcats a.cur{border-color:var(--red);color:var(--red)}

/* Product page */
.pd{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}
.gallery .main{aspect-ratio:1;background:#fff;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--r)}
.gallery .main img{max-height:100%;object-fit:contain}
.thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.thumbs button{width:68px;height:68px;border:1.5px solid var(--line);border-radius:8px;background:#fff;padding:4px;cursor:pointer}
.thumbs button[aria-current="true"]{border-color:var(--red)}
.thumbs img{width:100%;height:100%;object-fit:contain}
.pinfo .model-big{overflow-wrap:anywhere;font-size:clamp(28px,4vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.05;margin-bottom:6px;word-break:break-word}
.pinfo h1{font-size:18px;font-weight:600;color:var(--muted)}
.pricebox{background:var(--porcelain);border-radius:var(--r);padding:16px;margin:14px 0}
.pricebox .now{color:var(--red);font-size:32px;font-weight:800;line-height:1.1}
.pricebox .old{color:var(--muted);font-size:14px}
.pricebox .old s{margin-right:6px}
.save{color:var(--ok);font-weight:700}
.specs-mini{list-style:none;padding:0;margin:0 0 14px;display:grid;grid-template-columns:1fr 1fr;gap:6px}
.specs-mini li{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:14px}
.specs-mini b{display:block;font-size:12px;color:var(--muted);font-weight:500}
.actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;flex-direction:column;min-height:52px;border-radius:var(--r);border:0;font:inherit;font-weight:700;cursor:pointer;padding:8px 14px;text-align:center;line-height:1.2}
.btn small{font-weight:400;font-size:12px;opacity:.9}
.btn:hover{text-decoration:none}
.btn-red{background:var(--red);color:#fff;grid-column:1/-1}
.btn-red:hover{background:var(--red-dark)}
.btn-dark{background:var(--ink);color:#fff}
.btn-line{background:#fff;color:var(--ink);border:1.5px solid var(--ink)}
.assure{list-style:none;padding:0;margin:14px 0 0;font-size:14px}
.assure li{padding:6px 0 6px 24px;position:relative;border-top:1px dashed var(--line)}
.assure li:before{content:"✓";position:absolute;left:2px;color:var(--ok);font-weight:800}
.pcontent{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:18px;margin-top:18px;align-items:start}
.article{max-width:76ch}
.article h2{margin-top:1.2em}
.feat{list-style:none;padding:0;margin:0 0 1em}
.feat li{padding:10px 0;border-bottom:1px solid var(--porcelain)}
.feat li b{display:block}
.tbl{width:100%;border-collapse:collapse;font-size:14px;margin:0 0 1em}
.tbl th,.tbl td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.tbl th{background:var(--porcelain);font-weight:600}
.tbl td.r{text-align:right;white-space:nowrap}
.tbl-wrap{overflow-x:auto}
.faq details{border:1px solid var(--line);border-radius:8px;margin-bottom:8px;background:#fff}
.faq summary{padding:12px 14px;font-weight:600;cursor:pointer}
.faq details>div{padding:0 14px 12px}
.side .box h3{margin-bottom:8px}
.mini{display:grid;grid-template-columns:56px 1fr;gap:10px;align-items:center;padding:8px 0;border-top:1px solid var(--porcelain);color:var(--ink)}
.mini img{width:56px;height:56px;object-fit:contain}
.mini b{display:block;font-size:13.5px}
.mini span{color:var(--red);font-weight:700;font-size:14px}
.techlinks{display:flex;flex-wrap:wrap;gap:6px}

/* Cart */
.cart-row{display:grid;grid-template-columns:72px 1fr auto auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--porcelain)}
.cart-row img{width:72px;height:72px;object-fit:contain}
.qty{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px}
.qty button{border:0;background:none;width:32px;height:32px;cursor:pointer;font-size:16px}
.qty span{min-width:24px;text-align:center}
.form label{display:block;font-weight:600;margin:10px 0 4px}
.form input,.form textarea,.form select{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font:inherit}
.total{font-size:20px;font-weight:800;color:var(--red)}
.empty{text-align:center;padding:30px}

/* Footer */
.ftr{background:var(--ink);color:#c9d2de;margin-top:30px;padding:30px 0 90px;font-size:14px}
.ftr a{color:#fff}
.ftr .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:24px}
.ftr h3{color:#fff;font-size:15px}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr li{margin:4px 0}
.ftr .note{border-top:1px solid #2f3a4b;margin-top:22px;padding-top:14px;font-size:12.5px;color:#8f9bad}
.float{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;gap:10px;z-index:70}
.float a{width:52px;height:52px;border-radius:999px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px}
.float .z{background:#0068ff}
.float .c{background:var(--red)}
.mobbar{display:none}
.map{width:100%;height:320px;border:0;border-radius:var(--r)}
.seo-art{max-width:80ch}
.tag-list a{display:inline-block;margin:0 6px 6px 0}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;opacity:0;transition:opacity .2s;z-index:90;pointer-events:none}
.toast.show{opacity:1}

@media (max-width:980px){
  .hero{grid-template-columns:1fr}
  .pd,.pcontent{grid-template-columns:1fr}
  .ftr .cols{grid-template-columns:1fr 1fr}
  .perks{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .hdr .wrap{flex-wrap:wrap;gap:10px;padding-top:8px;padding-bottom:8px}
  .search{order:5;flex-basis:100%;max-width:none}
  .hotline{display:none}
  .menutoggle{display:block;margin-left:auto}
  .nav{display:none}
  .nav.open{display:block}
  .nav ul{flex-direction:column}
  .drop{position:static;display:grid;border:0;padding:0 0 6px 14px}
  .grid{grid-template-columns:repeat(2,1fr);gap:8px}
  .card{padding:10px}
  .card .m{font-size:14px}
  .price .now{font-size:16px}
  .price .old{display:block;margin:0}
  .hero{padding:20px}
  .hero-models{grid-template-columns:1fr}
  .finder{flex-direction:column}
  .finder input{flex:none;width:100%}
  .topbar .wrap>span:first-child{display:none}
  .topbar .wrap{justify-content:center}
  .ftr .cols{grid-template-columns:1fr}
  .float{display:none}
  .mobbar{display:grid;grid-template-columns:1fr 1fr;position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line)}
  .mobbar a{padding:12px;text-align:center;font-weight:700;color:#fff}
  .mobbar .c{background:var(--red)} .mobbar .z{background:#0068ff}
  .cart-row{grid-template-columns:56px 1fr;}
  .specs-mini{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* Logo Bếp Xanh */
.logo{display:block;flex:none;width:200px;height:54px;background:url(/assets/logo-bepxanh.png?v=2) left center/contain no-repeat;position:relative}
.logo b,.logo small{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (max-width:720px){.logo{width:150px;height:40px}}

/* ===== Trang sản phẩm: nội dung SEO ===== */
.article .lead{font-size:16.5px;line-height:1.7}
.ico{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--steel-soft);color:var(--steel);flex:none}
.ico svg{width:24px;height:24px}
.ico-spin svg{animation:icSpin 6s linear infinite}
.ico-pulse svg{animation:icPulse 2.2s ease-in-out infinite}
.ico-bob svg{animation:icBob 2.6s ease-in-out infinite}
.ico-flicker{color:var(--red);background:#fdeaea}
.ico-flicker svg{animation:icFlicker 1.6s ease-in-out infinite;transform-origin:50% 90%}
.ico-drive svg{animation:icDrive 2.4s ease-in-out infinite}
.ico-ring svg{animation:icRing 2.8s ease-in-out infinite;transform-origin:50% 50%}
@keyframes icSpin{to{transform:rotate(360deg)}}
@keyframes icPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.14)}}
@keyframes icBob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
@keyframes icFlicker{0%,100%{transform:scaleY(1)}40%{transform:scaleY(1.12) skewX(-3deg)}70%{transform:scaleY(.94) skewX(2deg)}}
@keyframes icDrive{0%,100%{transform:translateX(-2px)}50%{transform:translateX(3px)}}
@keyframes icRing{0%,60%,100%{transform:rotate(0)}65%{transform:rotate(-14deg)}75%{transform:rotate(12deg)}85%{transform:rotate(-8deg)}}
.qgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:16px 0 8px}
.q{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:var(--r);padding:10px}
.q b{display:block;font-size:14px;line-height:1.3}
.q small{color:var(--muted);font-size:12.5px;line-height:1.3;display:block}
.fgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:0 0 1em}
.fcard{border:1px solid var(--line);border-radius:var(--r);padding:14px;background:linear-gradient(180deg,#fff,#f7f9fb)}
.fcard h3{font-size:15.5px;margin:10px 0 4px}
.fcard p{margin:0;font-size:14px;color:#3a4555}
.steps{counter-reset:s;list-style:none;padding:0;margin:0 0 1em}
.steps li{counter-increment:s;position:relative;padding:10px 0 10px 44px;border-bottom:1px dashed var(--line)}
.steps li:before{content:counter(s);position:absolute;left:0;top:8px;width:30px;height:30px;border-radius:999px;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700;font-size:14px}
.pricecard{display:flex;gap:14px;align-items:flex-start;background:var(--porcelain);border-radius:var(--r);padding:16px;margin:0 0 1em}
.pricecard p{margin:0 0 4px}
.pricecard .big{font-size:18px}
.pricecard .big b{color:var(--red);font-size:24px}
.wgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:0 0 1em}
.w{border:1px solid var(--line);border-radius:var(--r);padding:12px;text-align:center}
.w .ico{margin:0 auto 8px}
.w b{display:block;font-size:14.5px}
.w small{color:var(--muted);font-size:13px;line-height:1.4;display:block;margin-top:2px}
.tbl tr.me td{background:#fff8e6}
.note-s{font-size:13px;color:var(--muted)}
.kwtags{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:16px 0 0;font-size:13.5px}
.kwtags span{color:var(--muted)}
.kwtags a{border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:var(--ink)}
.kwtags a:hover{border-color:var(--red);color:var(--red);text-decoration:none}
@media (max-width:720px){.qgrid,.wgrid{grid-template-columns:1fr 1fr}.fgrid{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){.ico svg{animation:none!important}}
.pc{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 1em}
.pc>div{border:1px solid var(--line);border-radius:var(--r);padding:12px 14px}
.pc h3{margin:0 0 6px}
.pros,.notes{list-style:none;padding:0;margin:0}
.pros li{display:flex;gap:8px;align-items:center;padding:5px 0;font-size:14.5px}
.pros .ico{width:28px;height:28px;border-radius:8px;background:#e7f5ed;color:var(--ok)}
.pros .ico svg{width:16px;height:16px}
.notes li{padding:5px 0 5px 18px;position:relative;font-size:14.5px}
.notes li:before{content:"!";position:absolute;left:2px;color:var(--red);font-weight:800}
@media (max-width:720px){.pc{grid-template-columns:1fr}}
@media (max-width:720px){.q{flex-direction:column;align-items:flex-start;gap:6px}}