/* Giang Tây – website. Nhận diện theo Giang Tay Branding.pdf (đỏ #EA0029, cam #F7941D, vàng #FEDD00, nền kem), font Arial. */
:root{
  /* 09/11/2026 chủ DN thấy màu chưa tươi: đưa đỏ, cam, vàng về sát màu logo, vẫn giữ nền trắng */
  --red:#E11D2E;--red-d:#B91223;--orange:#F7941D;--yellow:#FFCB05;
  --motion:linear-gradient(90deg,#FEDD00 0%,#F7941D 50%,#EA0029 100%);
  --soft:linear-gradient(90deg,#FFF3C9 0%,#FFE0CC 100%);
  --bg:#FFFFFF;--card:#FFFFFF;--g100:#F6F4F2;--g200:#ECE8E4;--g400:#A9A29C;--g600:#6B635D;--text:#2B2522;
  --green:#2A7F2C;--zalo:#0068FF;--shadow:0 1px 6px rgba(60,40,30,.07);--line:1px solid #EFEBE7;--radius:12px;
  --font:Arial,'Helvetica Neue',Helvetica,sans-serif;--wrap:1200px;color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--red)}a:hover{color:var(--red-d)}
svg{width:1em;height:1em;fill:currentColor;vertical-align:-.15em;flex:none}
h1,h2,h3{line-height:1.3;margin:.2em 0 .6em}
h1{font-size:clamp(22px,4vw,32px)}h2{font-size:clamp(19px,3vw,24px)}h3{font-size:18px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;z-index:99;background:#fff;padding:8px}
.muted{color:var(--g600)}.small{font-size:13px}
.ribbon{height:4px;background:var(--motion)}

/* topbar + header */
.topbar{background:var(--soft);color:var(--text);font-size:13px;border-bottom:var(--line)}
.topbar .wrap{display:flex;gap:18px;align-items:center;min-height:32px;flex-wrap:wrap}
.topbar a{color:var(--red-d);text-decoration:none;font-weight:700}
.tb-langs{margin-left:auto;display:flex;gap:6px}.tb-lang{border:1px solid #F4A58F;background:#fff;border-radius:12px;padding:0 8px;white-space:nowrap}
.site-head{background:var(--card);position:relative;z-index:30;box-shadow:var(--shadow)}
.head-row{display:flex;align-items:center;gap:16px;min-height:70px}
.logo img{height:48px;width:auto}
.search{flex:1;display:flex;max-width:520px;margin-left:auto;background:#fff;border-radius:24px;overflow:hidden;border:1px solid var(--g200)}
.search input{flex:1;border:0;background:transparent;padding:10px 16px;font:inherit;color:inherit;min-width:0}
.search button{border:0;background:var(--red);color:#fff;padding:0 18px;cursor:pointer;font-size:18px}
.head-call{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--text);font-weight:700;white-space:nowrap}
.head-call svg{font-size:30px;color:#fff;background:var(--red);border-radius:50%;padding:7px}
.head-call small{display:block;font-weight:400;color:var(--g600);font-size:12px;line-height:1}
.head-cart{position:relative;font-size:28px;color:var(--text);padding:6px}
.cart-count{position:absolute;top:-2px;right:-4px;background:var(--orange);color:#fff;font-size:11px;min-width:18px;height:18px;border-radius:9px;text-align:center;line-height:18px;padding:0 4px}
.nav-btn{display:none;border:0;background:none;font-size:28px;color:var(--text);padding:4px;cursor:pointer}
.main-nav{background:var(--card);border-top:1px solid var(--g200)}
.menu,.menu ul{list-style:none;margin:0;padding:0}
.menu{display:flex;flex-wrap:wrap}
.menu>li{position:relative}
.menu a{display:block;padding:12px 12px;text-decoration:none;color:var(--text);font-weight:700;font-size:14px;text-transform:uppercase}
.menu>li>a:hover,.menu>li:focus-within>a{color:var(--red)}
.menu ul{display:none;position:absolute;left:0;top:100%;min-width:290px;background:var(--card);box-shadow:0 8px 24px rgba(0,0,0,.15);border-top:3px solid var(--red);z-index:40}
.menu ul ul{left:100%;top:0}
.menu li:hover>ul,.menu li:focus-within>ul{display:block}
.menu ul a{text-transform:none;font-weight:400;padding:10px 16px;border-bottom:1px solid var(--g100)}
.menu ul a:hover{background:var(--g100);color:var(--red)}
.sub-toggle{display:none}

/* layout */
main{padding:16px 16px 40px}
main.with-side{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:28px}
.content{min-width:0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;padding:0;margin:0 0 12px;font-size:13px;color:var(--g600)}
.crumbs li+li:before{content:"›";margin-right:4px}
.crumbs a{color:var(--g600);text-decoration:none}.crumbs a:hover{color:var(--red)}
.side .box{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:var(--line);padding:16px;margin-bottom:18px}
.side h3{font-size:15px;text-transform:uppercase;border-left:4px solid var(--red);padding-left:8px}
.side ul{list-style:none;padding:0;margin:0}.side li{border-bottom:1px dashed var(--g200)}
.side li a{display:block;padding:8px 0;color:var(--text);text-decoration:none;font-size:14px}.side li a:hover{color:var(--red)}
.box.hot{text-align:center;background:var(--soft);color:var(--text)}
.box.hot h3{border:0;color:var(--red);padding:0}
.box.hot .big{display:block;color:var(--red);font-size:24px;font-weight:700;text-decoration:none}

/* buttons, forms */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:24px;background:var(--red);color:#fff;font:700 15px var(--font);padding:11px 20px;cursor:pointer;text-decoration:none;min-height:44px}
.btn:hover{background:var(--red-d);color:#fff}
.btn.ghost{background:transparent;color:var(--red);box-shadow:inset 0 0 0 2px var(--red)}
.btn.ghost:hover{background:var(--red);color:#fff}
.btn.zalo{background:var(--zalo)}.btn.zalo:hover{background:#0050c8}
.btn.buy{background:var(--red);color:#fff}
.btn[disabled]{opacity:.6;cursor:wait}
.gt-form{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:20px 0;display:grid;gap:12px}
.gt-form h2{margin:0}
.gt-form label{display:grid;gap:4px;font-weight:700;font-size:14px}
.gt-form input,.gt-form textarea,.gt-form select,.var select{font:inherit;padding:10px 12px;border:1px solid var(--g200);border-radius:10px;background:var(--bg);color:var(--text);width:100%}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.f-msg{margin:0;font-weight:700}.f-msg.ok{color:var(--green)}.f-msg.err{color:var(--red)}
.f-msg .btn{margin:6px 6px 0 0;font-size:14px;padding:8px 14px;min-height:36px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.grid.posts{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:var(--line);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s}
.card:hover{transform:translateY(-2px)}
.cimg{position:relative;display:block;background:#fff;aspect-ratio:1/1;overflow:hidden}
.acard .cimg{aspect-ratio:4/3}
.cimg img{width:100%;height:100%;object-fit:contain}
.acard .cimg img{object-fit:cover}
.noimg{display:grid;place-items:center;height:100%;background:var(--g100)}.noimg img{width:64px;opacity:.5}
.badge{background:var(--red);color:#fff;font-weight:700;font-size:12px;border-radius:12px;padding:2px 8px}
.cimg .badge{position:absolute;top:8px;left:8px}
.cbody{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.cbody h3{font-size:15px;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cbody h3 a{color:var(--text);text-decoration:none}.cbody h3 a:hover{color:var(--red)}
.cbody time{font-size:12px;color:var(--g600)}
.cbody .desc{font-size:14px;color:var(--g600);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.prices{margin:0;display:flex;align-items:baseline;flex-wrap:wrap;gap:6px}
.price{color:var(--red);font-size:18px}
.prices s{color:var(--g400);font-size:14px}
.pcard .btn.add{margin-top:auto;padding:8px 12px;min-height:38px;font-size:14px}

/* home */
.hero{position:relative;margin:0 -16px 16px;border-radius:0}
.slides{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.slides::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:start}
.slide img{width:100%;aspect-ratio:1920/600;object-fit:cover}
.dots{position:absolute;bottom:10px;left:0;right:0;display:flex;justify-content:center;gap:6px}
.dots button{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.6);padding:0;cursor:pointer}
.dots button.on{background:var(--red);width:24px;border-radius:5px}
.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0 0 24px}
.quick a{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:var(--line);padding:14px;text-decoration:none;color:var(--text);border-top:4px solid var(--orange)}
.quick a:nth-child(2n){border-top-color:var(--red)}
.quick b{display:block;color:var(--red)}.quick span{font-size:13px;color:var(--g600)}
.hsec{margin:28px 0}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:2px solid var(--g200);margin-bottom:16px}
.sec-head h2{margin:0 0 -2px;padding-bottom:8px;border-bottom:3px solid var(--red);text-transform:uppercase}
.sec-head a{font-weight:700;text-decoration:none;white-space:nowrap}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.why-grid div{background:#FFF9F3;border-radius:var(--radius);padding:16px;border:var(--line)}
.why-grid b{display:block;color:var(--red);margin-bottom:4px}.why-grid span{font-size:14px;color:var(--g600)}

/* listings */
.group{margin:8px 0 28px}
.group h2 a{color:var(--text);text-decoration:none;border-left:5px solid var(--red);padding-left:10px;text-transform:uppercase}
.more{text-align:right;margin:10px 0 0}.more a{font-weight:700;text-decoration:none}
.empty{background:var(--card);padding:20px;border-radius:var(--radius)}

/* article + product */
.post,.product,.tabs{background:var(--card);border-radius:var(--radius);box-shadow:none;border:var(--line);padding:20px}
.post .meta{color:var(--g600);font-size:14px;margin-top:-8px}
.prose{overflow-wrap:anywhere}
.prose img{margin:12px auto;border-radius:8px}
.prose table{border-collapse:collapse;width:100%;display:block;overflow-x:auto;margin:12px 0}
.prose td,.prose th{border:1px solid var(--g200);padding:6px 8px;vertical-align:top}
.prose h2{color:var(--red);margin-top:1.2em}.prose h3{margin-top:1em}
.prose iframe,.video iframe{width:100%;aspect-ratio:16/9;height:auto;border:0;border-radius:8px}
.prose blockquote{border-left:4px solid var(--orange);margin:12px 0;padding:4px 14px;background:var(--g100)}
.toc{background:var(--g100);border-radius:10px;padding:10px 16px;margin:0 0 16px}
.toc summary{font-weight:700;cursor:pointer}
.toc ol{margin:8px 0 0;padding-left:20px}.toc li.h3{margin-left:16px;list-style:circle}
.toc a{color:var(--text);text-decoration:none}.toc a:hover{color:var(--red)}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;background:var(--soft);border:var(--line);border-radius:var(--radius);padding:16px 18px;margin:24px 0;color:#2D1F18}
.cta b{display:block;font-size:18px}.cta span{font-size:14px}
.cta-btns{display:flex;gap:8px;flex-wrap:wrap}
.cta .btn{background:var(--red);color:#fff}.cta .btn.zalo{background:var(--zalo);color:#fff}
.share{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px;margin:12px 0}
.share a,.share button{border:1px solid var(--g200);border-radius:16px;padding:4px 12px;text-decoration:none;color:var(--text);background:var(--card);font:inherit;cursor:pointer}
.related{margin-top:24px}.related ul{padding-left:20px}
.product{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:24px;margin-bottom:20px}
.gallery .g-main{background:#fff;border-radius:10px;overflow:hidden;aspect-ratio:1/1}
.gallery .g-main img{width:100%;height:100%;object-fit:contain}
.g-thumbs{display:flex;gap:8px;margin-top:8px;overflow-x:auto}
.g-thumbs button{flex:0 0 64px;height:64px;border:2px solid var(--g200);border-radius:8px;padding:0;background:#fff;cursor:pointer;overflow:hidden}
.g-thumbs button.on{border-color:var(--red)}
.g-thumbs img{width:100%;height:100%;object-fit:contain}
.p-info h1{font-size:clamp(20px,3vw,26px)}
.p-price .price{font-size:28px}
.code{color:var(--g600);font-size:14px}
.var{display:grid;gap:4px;font-weight:700;font-size:14px;margin:8px 0}
.qty-row label{display:flex;align-items:center;gap:10px;font-weight:700;font-size:14px}
.qty{display:inline-flex;border:1px solid var(--g200);border-radius:22px;overflow:hidden}
.qty button{width:40px;height:40px;border:0;background:var(--g100);font-size:20px;cursor:pointer;color:var(--text)}
.qty input{width:56px;text-align:center;border:0;font:inherit;background:var(--card);color:var(--text)}
.buy-btns{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
.buy-alt{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:14px}
.buy-alt a{text-decoration:none;font-weight:700;display:inline-flex;gap:6px;align-items:center}
.buy-alt a:nth-child(2){color:var(--zalo)}
.p-info .short{margin-top:16px;border-top:1px solid var(--g200);padding-top:8px;font-size:15px}
.p-info .short h2{font-size:18px}
.tab-list{display:flex;gap:4px;overflow-x:auto;border-bottom:2px solid var(--g200);margin:-4px 0 12px}
.tab-list button{border:0;background:none;font:700 15px var(--font);padding:10px 14px;color:var(--g600);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;white-space:nowrap}
.tab-list button[aria-selected="true"]{color:var(--red);border-bottom-color:var(--red)}
.tab-title{display:none}
.no-js .tab-pane[hidden]{display:block}.no-js .tab-title{display:block}

/* contact, cart */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:24px;align-items:start}
.contact-info{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:20px 0}
.contact-info svg{color:var(--red)}
.map iframe{width:100%;height:360px;border:0;border-radius:var(--radius)}
.cart{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px 16px}
.cart-item{display:grid;grid-template-columns:64px 1fr auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--g100)}
.cart-item img{width:64px;height:64px;object-fit:contain;background:#fff;border-radius:8px}
.cart-item .t{font-weight:700;font-size:14px}.cart-item .t a{color:var(--text);text-decoration:none}
.cart-item .rm{border:0;background:none;color:var(--g600);cursor:pointer;font-size:13px;text-decoration:underline}
.cart-total{display:flex;justify-content:space-between;font-size:18px;padding:12px 0 4px}
.cart-total b{color:var(--red)}
.search.big{max-width:640px;margin:0 0 20px}
.search.big .btn{border-radius:0}
.nf{text-align:center;padding:30px 0}.nf .search{margin:20px auto}

/* footer */
.site-foot{background:#F7F4F1;color:var(--g600);margin-top:20px;font-size:14px;border-top:var(--line)}
.site-foot a{color:var(--text)}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:24px;padding-top:28px;padding-bottom:20px}
.site-foot h3{color:var(--text);font-size:15px;text-transform:uppercase;border-bottom:2px solid var(--orange);display:inline-block;padding-bottom:4px}
.foot-logo{height:51px;width:auto;margin-bottom:8px}
.foot-links{list-style:none;padding:0}.foot-links li{padding:3px 0}
.social a{display:inline-flex;gap:6px;align-items:center;margin-right:12px;text-decoration:none}
.yt-thumb img{border-radius:8px;margin-top:8px}
.copy{text-align:center;border-top:var(--line);padding:12px 16px 80px;font-size:13px}
.float-btns{position:fixed;right:16px;bottom:24px;display:flex;flex-direction:column;gap:10px;z-index:25}
.float-btns a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 4px 12px rgba(0,0,0,.25);font-size:26px}
.fb-zalo{background:var(--zalo)}.fb-zalo svg{font-size:40px}
.fb-call{background:var(--red);animation:ring 2s infinite}
@keyframes ring{0%,100%{box-shadow:0 0 0 0 rgba(234,0,41,.5)}50%{box-shadow:0 0 0 12px rgba(234,0,41,0)}}
.bottom-bar{display:none}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:#3a322e;color:#fff;padding:10px 18px;border-radius:24px;z-index:60;font-size:14px;box-shadow:0 4px 16px rgba(0,0,0,.3)}

/* tablet & phone */
@media (max-width:1000px){
  main.with-side{grid-template-columns:1fr}
  .side{display:none}
  .head-call span{display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .quick,.why-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:16px;padding-bottom:62px}
  .topbar .tb-mail{display:none}
  .head-row{min-height:60px;gap:10px;flex-wrap:wrap}
  .nav-btn{display:block}
  .logo img{height:40px}
  .head-call{margin-left:auto}
  .head-call svg{font-size:26px}
  .head-cart{display:none}
  .search{order:5;flex-basis:100%;max-width:none;margin:0 0 10px}
  .main-nav{display:none;position:fixed;inset:0 0 0 0;top:0;background:rgba(0,0,0,.45);z-index:50;border:0}
  .main-nav.open{display:block}
  .main-nav .wrap{background:var(--card);height:100%;width:min(86vw,340px);overflow-y:auto;padding:12px 0}
  .menu{display:block}
  .menu li{border-bottom:1px solid var(--g100)}
  .menu a{padding:13px 16px}
  .menu ul,.menu ul ul{position:static;display:none;box-shadow:none;border:0;min-width:0;background:var(--g100)}
  .menu li:hover>ul,.menu li:focus-within>ul{display:none}
  .menu li.open>ul{display:block}
  .has-sub{position:relative}
  .sub-toggle{display:block;position:absolute;right:0;top:0;width:48px;height:46px;border:0;background:none;font-size:18px;color:var(--g600);cursor:pointer}
  .menu ul a{padding-left:28px}.menu ul ul a{padding-left:40px}
  .product,.contact-grid,.f2{grid-template-columns:1fr}
  .post,.product,.tabs{padding:14px;border-radius:10px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .grid.posts{grid-template-columns:1fr}
  .grid.posts .acard{flex-direction:row}
  .grid.posts .acard .cimg{flex:0 0 120px;aspect-ratio:auto;min-height:100px}
  .grid.posts .cbody .desc{-webkit-line-clamp:2;font-size:13px}
  .cbody{padding:10px}
  .cbody h3{font-size:14px}
  .price{font-size:16px}
  .quick a{padding:10px}.quick b{font-size:14px}
  .hero{margin-top:-16px}
  .foot-grid{grid-template-columns:1fr}
  .float-btns{display:none}
  .bottom-bar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;background:var(--card);box-shadow:0 -2px 12px rgba(0,0,0,.12);z-index:40;padding-bottom:env(safe-area-inset-bottom,0)}
  .bottom-bar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:7px 0;color:var(--text);text-decoration:none;font-size:12px;position:relative;min-height:56px}
  .bottom-bar a svg{font-size:22px}
  .bottom-bar a:first-child{color:var(--red)}
  .bottom-bar a:nth-child(2){color:var(--zalo)}.bottom-bar a:nth-child(2) svg{font-size:28px}
  .bottom-bar .cart-count{top:4px;right:calc(50% - 22px)}
  .copy{padding-bottom:16px}
  .cta{flex-direction:column;align-items:stretch}.cta-btns .btn{flex:1}
}
@media print{.topbar,.site-head,.side,.site-foot,.float-btns,.bottom-bar,.cta,.share{display:none!important}}
.hb-photos{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.hb-photos figure{margin:0}.hb-photos img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:8px}.hb-photos figcaption{font-size:13px;color:var(--g600);margin-top:4px}@media(max-width:640px){.hb-photos{grid-template-columns:repeat(2,1fr)}}