/* ALOKA — khối đá năng lượng thấu quang */
@font-face{font-family:"Be Vietnam Pro";src:url(../fonts/BeVietnamPro-Regular.ttf) format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(../fonts/BeVietnamPro-Medium.ttf) format("truetype");font-weight:500;font-display:swap}
@font-face{font-family:"Be Vietnam Pro";src:url(../fonts/BeVietnamPro-SemiBold.ttf) format("truetype");font-weight:600;font-display:swap}
:root{
  --ink:#14110e;--ink2:#1d1814;--ink3:#27211b;
  --cream:#f4eee3;--cream2:#ebe3d4;--paper:#fbf8f2;
  --gold:#be8950;--gold2:#e3b67e;--rust:#683c17;--brown:#683c17;--white:#fffdf9;
  --tx:#efe6d6;--mut:#b4a894;--tx-d:#2a231c;--mut-d:#6d6254;
  --line:rgba(239,230,214,.14);--line-d:rgba(42,35,28,.14);
  --serif:"Cormorant Garamond","Playfair Display",Georgia,"Times New Roman",serif;
  --sans:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --w:1240px;--hd:86px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hd) + 66px);-webkit-text-size-adjust:100%}
body{font-family:var(--sans);font-size:16px;line-height:1.7;color:var(--tx);background:var(--ink);overflow-x:hidden}
img{display:block;max-width:100%;height:auto;-webkit-user-drag:none;-webkit-touch-callout:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--gold2);outline-offset:3px}
.wrap{width:min(var(--w),100% - 48px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;background:var(--gold);color:var(--ink);padding:8px 14px;z-index:99}.skip:focus{top:12px}
svg.i{width:1.15em;height:1.15em;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* chữ */
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:12px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.08;letter-spacing:-.005em}
h2{font-size:clamp(2.1rem,4.4vw,3.5rem)}
h2 em,h1 em{font-style:italic;color:var(--gold2);font-weight:500}
.light h2 em{color:var(--rust)}
.lead{font-size:1.06rem;color:var(--mut);max-width:58ch}
.light .lead{color:var(--mut-d)}
.sec{padding:clamp(72px,9vw,128px) 0}
.sec-head{display:grid;gap:18px;margin-bottom:clamp(36px,5vw,64px)}
.light{background:var(--cream);color:var(--tx-d)}
.light .eyebrow{color:var(--rust)}
.dark2{background:var(--ink2)}

/* nút */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 28px;font-size:14px;font-weight:600;letter-spacing:.04em;border:1px solid transparent;transition:.25s}
.btn-gold{background:var(--gold);color:var(--ink)}.btn-gold:hover{background:var(--gold2)}
.btn-line{border-color:var(--line);color:var(--tx)}.btn-line:hover{border-color:var(--gold2);color:var(--gold2)}
.light .btn-line{border-color:var(--line-d);color:var(--tx-d)}.light .btn-line:hover{border-color:var(--rust);color:var(--rust)}
.link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--gold2);border-bottom:1px solid transparent;transition:.2s}
.link:hover{border-color:currentColor}.link svg{transition:transform .2s}.link:hover svg{transform:translateX(3px)}
.light .link{color:var(--rust)}

/* header: nền sáng để logo giữ đúng màu gốc */
.hd{position:fixed;inset:0 0 auto;height:var(--hd);z-index:50;background:rgba(255,253,249,.97);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line-d);transition:box-shadow .3s}
.hd .wrap{height:100%;display:flex;align-items:center;gap:36px}
.brand{display:block;line-height:0}
.brand img{height:62px;width:auto}
.nav{display:flex;gap:30px;margin-left:auto;font-size:14px;font-weight:500}
.nav a{padding:6px 0;color:var(--tx-d);border-bottom:1px solid transparent;transition:.2s}
.nav a:hover,.nav a[aria-current]{color:var(--brown);border-color:var(--brown)}
.hd-act{display:flex;align-items:center;gap:20px}
.tel{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--brown)}
.hd .btn{min-height:42px;padding:0 20px;font-size:13px;background:var(--brown);color:#fffdf9}.hd .btn:hover{background:#7d4a1f}
.burger{display:none;width:44px;height:44px;margin-left:auto;place-items:center}
.burger span{display:block;width:22px;height:1.5px;background:var(--tx-d);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:22px;height:1.5px;background:var(--tx-d);transition:.25s}
.burger span::before{top:-7px}.burger span::after{top:7px}
.hd.open .burger span{background:transparent}.hd.open .burger span::before{top:0;transform:rotate(45deg)}.hd.open .burger span::after{top:0;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:max(680px,100svh);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);background:var(--ink)}
.hero-tx{display:flex;flex-direction:column;justify-content:center;padding:calc(var(--hd) + 56px) clamp(24px,5vw,80px) 56px max(24px,calc((100vw - var(--w))/2));gap:28px;z-index:1}
.hero h1{font-size:clamp(2.8rem,6vw,5.2rem);line-height:1.02}
.hero .sub{font-size:1.12rem;color:var(--mut);max-width:46ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px}
.proof{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px;padding-top:28px;border-top:1px solid var(--line);max-width:600px}
.proof li{display:grid;gap:10px;font-size:13px;line-height:1.5;color:var(--mut)}
.proof svg{width:26px;height:26px;color:var(--gold)}
.proof b{display:block;color:var(--tx);font-weight:600;font-size:13.5px}
.hero-im{position:relative;overflow:hidden}
.hero-im img{width:100%;height:100%;object-fit:cover;object-position:50% 40%;filter:brightness(1.55) contrast(1.06) saturate(1.2);transform-origin:46% 55%;animation:heroZoom 22s ease-in-out infinite alternate}
.hero-im::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;mix-blend-mode:screen;background:radial-gradient(ellipse 34% 30% at 46% 58%,rgba(255,176,84,.5),rgba(255,140,50,.16) 55%,transparent 75%);animation:heroGlow 4.5s ease-in-out infinite alternate}
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.07)}}
@keyframes heroGlow{from{opacity:.55}to{opacity:1}}
@media (prefers-reduced-motion:reduce){.hero-im img,.hero-im::after{animation:none}}
.hero-im::before{content:"";position:absolute;inset:0 auto 0 0;width:32%;background:linear-gradient(90deg,var(--ink),transparent);z-index:1}
.hero-cap{position:absolute;right:28px;bottom:26px;z-index:2;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:rgba(255,255,255,.78)}

/* triết lý */
.tl{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(36px,6vw,96px);align-items:center}
.tl-im{position:relative;aspect-ratio:4/5;overflow:hidden}
.tl-im img{width:100%;height:100%;object-fit:cover}
.tl-tx{display:grid;gap:26px}
.pillars{display:grid;grid-template-columns:1fr 1fr;gap:34px 36px;margin-top:10px}
.pillar{display:grid;gap:10px;padding-top:22px;border-top:1px solid var(--line-d)}
.pillar svg{width:30px;height:30px;color:var(--rust)}
.pillar h3{font-size:1.5rem}
.pillar p{font-size:.95rem;color:var(--mut-d)}
.vow{font-family:var(--serif);font-style:italic;font-size:clamp(1.5rem,2.6vw,2.1rem);color:var(--rust);margin-top:6px}

/* tắt - bật */
.oo{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:clamp(32px,5vw,80px);align-items:center}
.stage{position:relative;aspect-ratio:1;background:#efefef;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:opacity .7s ease}
.stage .im-on{opacity:0}
.stage.is-on .im-on{opacity:1}.stage.is-on .im-off{opacity:0}
.stage::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 50% 56%,rgba(255,190,90,.34),transparent 62%);opacity:0;transition:opacity .7s;mix-blend-mode:multiply}
.stage.is-on::after{opacity:1}
.state{position:absolute;left:20px;top:18px;font-size:11px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:#6b6258}
.oo-ctl{display:grid;gap:32px}
.sw{display:inline-flex;align-items:center;gap:16px;font-size:13px;font-weight:600;letter-spacing:.2em;text-transform:uppercase}
.sw button{position:relative;width:76px;height:38px;border-radius:99px;background:var(--ink3);border:1px solid var(--line);transition:.3s}
.sw button::after{content:"";position:absolute;top:4px;left:4px;width:28px;height:28px;border-radius:50%;background:var(--mut);transition:.3s}
.sw button[aria-pressed=true]{background:var(--gold);border-color:var(--gold)}
.sw button[aria-pressed=true]::after{left:42px;background:var(--ink)}
.sw .l-off{color:var(--tx)}.sw .l-on{color:var(--mut)}.sw.is-on .l-off{color:var(--mut)}.sw.is-on .l-on{color:var(--gold2)}
.grp{display:grid;gap:12px}
.grp>span{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--mut)}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:10px;padding:9px 18px;border:1px solid var(--line);font-size:14px;transition:.2s}
.chip:hover{border-color:var(--gold2)}
.chip[aria-pressed=true]{border-color:var(--gold);background:rgba(199,144,66,.14);color:var(--gold2)}
.chip i{width:14px;height:14px;border-radius:50%;box-shadow:0 0 0 1px rgba(255,255,255,.3)}
.oo-note{font-size:.92rem;color:var(--mut);max-width:44ch}

/* bộ sưu tập */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tab{padding:12px 22px;border:1px solid var(--line-d);font-size:14px;font-weight:600;transition:.2s;display:grid;gap:0;text-align:left;line-height:1.35}
.tab small{font-weight:400;font-size:12px;color:var(--mut-d)}
.tab:hover{border-color:var(--rust)}
.tab[aria-selected=true]{background:var(--ink);border-color:var(--ink);color:var(--cream)}
.tab[aria-selected=true] small{color:var(--gold2)}
.tab-note{color:var(--mut-d);margin-bottom:34px;min-height:1.7em}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px 28px}
.card{display:grid;gap:16px;align-content:start}
.card[hidden]{display:none}
.card-im{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--ink2)}
.card-im img{width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.card:hover .card-im img{transform:scale(1.05)}
.tag{position:absolute;left:14px;top:14px;padding:5px 12px;background:rgba(20,17,14,.78);backdrop-filter:blur(6px);color:var(--gold2);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase}
.card h3{font-size:1.7rem}
.card .en{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--mut-d);margin-top:4px}
.card p{color:var(--mut-d);font-size:.95rem}
.card-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-top:12px;border-top:1px solid var(--line-d);font-size:13px;color:var(--mut-d)}
.card-meta .link{font-size:13px}

/* không gian */
.kg{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.kg a{position:relative;display:block;aspect-ratio:3/4;overflow:hidden;background:var(--ink3)}
.kg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.kg a::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(14,11,8,.9))}
.kg a:hover img{transform:scale(1.06)}
.kg-tx{position:absolute;left:20px;right:20px;bottom:18px;z-index:1;display:grid;gap:6px}
.kg-tx h3{font-size:1.6rem}
.kg-tx p{font-size:.88rem;color:var(--mut);line-height:1.5;max-height:0;opacity:0;overflow:hidden;transition:.4s}
.kg a:hover p,.kg a:focus-visible p{max-height:90px;opacity:1}
.kg-tx span{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold2)}

/* faq */
.fq{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(32px,6vw,96px);align-items:start}.fq .sec-head{margin-bottom:0;position:sticky;top:calc(var(--hd) + 24px)}
.faq{border-top:1px solid var(--line-d)}
.faq details{border-bottom:1px solid var(--line-d)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 0;font-family:var(--serif);font-size:1.55rem;line-height:1.25}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--sans);font-size:1.5rem;color:var(--rust);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 40px 26px 0;color:var(--mut-d)}

/* liên hệ */
.ct{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(36px,6vw,90px)}
.ct-info{display:grid;gap:30px;align-content:start}
.ct-list{display:grid;gap:18px}
.ct-list li{display:flex;gap:16px;align-items:flex-start;color:var(--mut)}
.ct-list svg{width:22px;height:22px;color:var(--gold);margin-top:3px}
.ct-list b{display:block;color:var(--tx);font-weight:600}
form{display:grid;gap:18px;padding:clamp(24px,3.5vw,44px);background:var(--ink2);border:1px solid var(--line)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:grid;gap:8px;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}
input,select,textarea{width:100%;padding:13px 14px;font:inherit;font-size:15px;letter-spacing:0;text-transform:none;font-weight:400;color:var(--tx);background:var(--ink);border:1px solid var(--line);border-radius:0;transition:.2s}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--gold)}
textarea{min-height:110px;resize:vertical}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--mut) 50%),linear-gradient(135deg,var(--mut) 50%,transparent 50%);background-position:calc(100% - 20px) 55%,calc(100% - 14px) 55%;background-size:6px 6px;background-repeat:no-repeat}
.fn{font-size:12.5px;color:var(--mut);letter-spacing:0;text-transform:none;font-weight:400}
.ok{display:none;color:var(--gold2);font-size:14px}.ok.show{display:block}

/* footer: nền sáng, logo giữ đúng màu gốc */
.ft{background:var(--white);border-top:1px solid var(--line-d);padding:72px 0 28px;color:var(--mut-d);font-size:14px}
.ft-g{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.ft img{height:84px;width:auto;margin-bottom:18px}
.ft h4{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--tx-d);margin-bottom:16px;font-weight:600}
.ft li{margin-bottom:10px}.ft a:hover{color:var(--brown)}
.ft-b{margin-top:52px;padding-top:22px;border-top:1px solid var(--line-d);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px}

/* dock liên hệ nổi */
.dock{position:fixed;right:18px;bottom:22px;z-index:40;display:grid;gap:10px}
.dock a{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;box-shadow:0 8px 24px rgba(0,0,0,.4);transition:transform .2s}
.dock a:hover{transform:scale(1.08)}
.dock .zl{background:#0068ff;color:#fff;font-weight:700;font-size:13px;letter-spacing:.02em}
.dock .ph{background:var(--gold);color:var(--ink)}.dock svg{width:22px;height:22px}

/* trang trong */
.page-hd{padding:calc(var(--hd) + 56px) 0 48px;background:var(--ink2)}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--mut);margin-bottom:26px}
.crumb a:hover{color:var(--gold2)}.crumb li+li::before{content:"/";margin-right:8px;opacity:.5}
.pd{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(32px,5vw,80px);align-items:start}
.gal-main{aspect-ratio:4/5;overflow:hidden;background:var(--ink3)}
.gal-main img{width:100%;height:100%;object-fit:cover}
.thumbs{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap}
.thumbs button{width:84px;aspect-ratio:1;overflow:hidden;border:1px solid transparent;opacity:.6;transition:.2s}
.thumbs button[aria-current=true],.thumbs button:hover{opacity:1;border-color:var(--gold)}
.thumbs img{width:100%;height:100%;object-fit:cover}
.pd-info{display:grid;gap:24px;position:sticky;top:calc(var(--hd) + 24px)}
.pd-info h1{font-size:clamp(2.4rem,4.6vw,3.8rem)}
.pd-en{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.pd-cau{font-family:var(--serif);font-style:italic;font-size:1.6rem;color:var(--gold2);line-height:1.25}
.pd-info p{color:var(--mut)}
.spec{border-top:1px solid var(--line)}
.spec div{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.spec .kts{display:grid;grid-template-columns:1fr;gap:8px;padding:0;border:0}.spec dt{color:var(--mut)}.spec dd{color:var(--tx)}.spec dd small{display:block;color:var(--mut);font-size:12.5px}
.pd-cta{display:flex;flex-wrap:wrap;gap:12px}
.pd-note{font-size:12.5px;color:var(--mut)}
.oo-mini{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.oo-mini figure{display:grid;gap:12px}
.oo-mini .pair{display:grid;grid-template-columns:1fr 1fr}
.oo-mini .pair img{aspect-ratio:1;object-fit:contain;width:100%}
.oo-mini figcaption{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut-d);display:flex;justify-content:space-between}
.cap-row{display:flex;justify-content:space-between;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--mut-d);padding:0 4px}
.band{padding:clamp(56px,7vw,96px) 0;text-align:center;background:linear-gradient(180deg,var(--ink),var(--ink2))}
.band h2{margin-bottom:22px}.band .lead{margin:0 auto 30px}

/* chuyển động */
.rv{opacity:0;transform:translateY(22px);transition:opacity .8s ease,transform .8s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.rv{opacity:1;transform:none}}

/* responsive */
@media (max-width:1080px){
  .grid{grid-template-columns:repeat(2,1fr)}.kg{grid-template-columns:repeat(2,1fr)}
  .ft-g{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .hero{grid-template-columns:1fr;min-height:0}
  .hero-im{order:-1;height:66svh;min-height:400px;margin-top:var(--hd)}
  .hero-im img{width:125%;max-width:none;object-position:0% 14%;transform-origin:58% 52%}
  .hero-im::after{background:radial-gradient(ellipse 40% 26% at 58% 50%,rgba(255,176,84,.5),rgba(255,140,50,.16) 55%,transparent 75%)}
  .hero-im::before{inset:auto 0 0 0;width:auto;height:18%;background:linear-gradient(0deg,var(--ink),transparent)}
  .hero-tx{padding:20px 24px 48px;margin-top:0}
  .tl,.oo,.ct,.pd,.fq{grid-template-columns:1fr}.fq .sec-head{position:static;margin-bottom:28px}
  .tl-im{aspect-ratio:4/3}.pd-info{position:static}
  .pillars{grid-template-columns:1fr}
  .proof{grid-template-columns:1fr;gap:16px}.proof li{grid-template-columns:34px 1fr;align-items:start;gap:14px}
  .kg-tx p{max-height:90px;opacity:1}
  .hero-cap{display:none}
}
@media (max-width:560px){
  .wrap{width:calc(100% - 32px)}.grid{grid-template-columns:1fr}.row2{grid-template-columns:1fr}
  .kg{grid-template-columns:1fr 1fr;gap:10px}.kg-tx{left:12px;right:12px}.kg-tx h3{font-size:1.25rem}.kg-tx p{display:none}
  .ft-g{grid-template-columns:1fr}.tab{flex:1 1 calc(50% - 8px)}
  .dock{right:12px;bottom:14px}.dock a{width:46px;height:46px}
  .spec div{grid-template-columns:100px 1fr}
}

/* video */
.vid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:clamp(24px,4vw,56px);align-items:start}
.vplay{--ar:1.7778;aspect-ratio:var(--ar);width:min(100%,calc(76vh * var(--ar)));max-height:76vh;margin-inline:auto;background:#000;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.vplay video{width:100%;height:100%;object-fit:contain;display:block}
.vcap{padding-top:22px}.vcap h3{font-size:1.9rem;margin-bottom:8px}.vcap p{color:var(--mut)}
.vlist{display:grid;gap:12px}
.vit{display:grid;grid-template-columns:128px 1fr;gap:16px;align-items:center;text-align:left;padding:10px;border:1px solid var(--line);transition:.2s}
.vit:hover{border-color:var(--gold2)}.vit[aria-pressed=true]{border-color:var(--gold);background:rgba(199,144,66,.1)}
.vit img{width:128px;height:72px;object-fit:cover}
.vit b{display:block;font-weight:600;font-size:14.5px;line-height:1.4}.vit small{color:var(--mut);font-size:12.5px}
@media (max-width:820px){.vid{grid-template-columns:1fr}}

/* bảng mã, sắc đá */
.tbl{overflow-x:auto;border:1px solid var(--line-d);background:var(--paper)}
.tbl table{width:100%;border-collapse:collapse;font-size:14px;min-width:760px}
.tbl th{padding:13px 16px;text-align:left;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut-d);border-bottom:1px solid var(--line-d);background:var(--cream2);white-space:nowrap}
.tbl td{padding:13px 16px;border-bottom:1px solid var(--line-d);vertical-align:middle;color:var(--tx-d)}
.tbl tr:last-child td{border-bottom:0}
.tbl td b{color:var(--brown);letter-spacing:.02em;white-space:nowrap}
.tbl a{border-bottom:1px solid var(--line-d)}.tbl a:hover{color:var(--brown);border-color:var(--brown)}
.tbl .lh{color:var(--brown);font-weight:600;white-space:nowrap}
.tbl-note{margin-top:14px;font-size:13px;color:var(--mut-d);max-width:80ch}
.mchip{display:inline-flex;align-items:center;gap:7px;margin:2px 10px 2px 0;font-size:13px;white-space:nowrap}
.mchip i{width:13px;height:13px;border-radius:50%;box-shadow:0 0 0 1px rgba(0,0,0,.25)}
.mgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px}
.mcard h3{font-size:1.7rem;margin-top:16px}
.mcard .mnghia{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut-d);margin:3px 0 12px}
.mcard p{font-size:.93rem;color:var(--mut-d);margin-top:6px}.mcard p b{color:var(--tx-d);font-weight:600}
.msw{height:120px;position:relative;display:flex;justify-content:space-between;align-items:flex-end;padding:10px 14px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;font-weight:600;color:rgba(255,255,255,.88)}
.msw span:last-child{color:rgba(30,18,6,.85)}
.dark2 .mcard h3,.pd-info .tbl{color:inherit}
.tbl-sp{background:rgba(255,255,255,.04);border-color:var(--line)}
.tbl-sp th{background:rgba(255,255,255,.06);color:var(--mut);border-color:var(--line)}
.tbl-sp td{color:var(--tx);border-color:var(--line)}.tbl-sp td b{color:var(--gold2)}
.tbl-sp table{min-width:540px}
.dark2 .mcard h3{color:var(--tx)}.dark2 .mcard .mnghia{color:var(--mut)}
.dark2 .mcard p{color:var(--mut)}.dark2 .mcard p b{color:var(--tx)}
.spec dd.mc{display:flex;flex-wrap:wrap;gap:4px 0}
.sec:not(.light) .mcard h3{color:var(--tx)}.sec:not(.light) .mcard .mnghia{color:var(--mut)}
.sec:not(.light) .mcard p{color:var(--mut)}.sec:not(.light) .mcard p b{color:var(--tx)}

/* ===== menu theo bốn loại sản phẩm ===== */
.nav{align-items:center;gap:26px;align-self:stretch}
.nv{position:relative;display:flex;align-items:center}
.nv-top{display:inline-flex;align-items:center;gap:8px}
.nv-ic{display:none}
.nv-tg{display:none}
.nv-sub{display:none;position:absolute;top:100%;left:-18px;min-width:300px;padding:10px;background:var(--white);box-shadow:0 18px 40px rgba(0,0,0,.18);border-top:2px solid var(--brown);z-index:60;gap:2px}
.nav .nv-sub a{display:grid;gap:1px;padding:10px 12px;border:0;color:var(--tx-d);line-height:1.35}
.nav .nv-sub a b{font-weight:600;font-size:14px}
.nav .nv-sub a small{font-size:12px;color:var(--mut-d);font-weight:400}
.nav .nv-sub a:hover{background:var(--cream);color:var(--brown)}
.nav .nv-sub .all{border-bottom:1px solid var(--line-d);margin-bottom:6px;color:var(--brown);font-weight:600;font-size:14px}
@media (min-width:1181px){.nv:hover .nv-sub,.nv:focus-within .nv-sub{display:grid}}
@media (max-width:1180px){.nv-ic{display:inline-block}}

/* thanh chọn nhanh dưới tiêu đề */
.subnav{position:sticky;top:var(--hd);z-index:30;background:rgba(29,24,20,.97);backdrop-filter:blur(10px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.subnav .wrap{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.subnav .wrap::-webkit-scrollbar{display:none}
.subnav a{display:flex;align-items:center;gap:9px;padding:15px 18px;font-size:13.5px;font-weight:600;white-space:nowrap;color:var(--mut);border-bottom:2px solid transparent;transition:.2s}
.subnav a:hover{color:var(--gold2);border-color:var(--gold)}
.subnav svg{width:1.25em;height:1.25em}

/* bốn loại trên trang chủ */
.mods{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.mod{display:grid;grid-template-rows:auto 1fr;background:var(--ink);color:var(--tx);overflow:hidden;transition:transform .4s,box-shadow .4s}
.mod:hover{transform:translateY(-4px);box-shadow:0 24px 50px rgba(0,0,0,.28)}
.mod-im{aspect-ratio:4/5;overflow:hidden;background:var(--ink3)}
.mod-im img{width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.mod:hover .mod-im img{transform:scale(1.05)}
.mod-b{padding:20px 20px 22px;display:grid;gap:12px;align-content:start}
.mod-t{display:flex;align-items:center;gap:12px}
.mod-ic{width:30px;height:30px;color:var(--gold2)}
.mod-t h3{font-size:2.1rem;color:var(--tx)}
.mod-b p{font-size:.9rem;color:var(--mut);line-height:1.55}
.mod-n{display:flex;flex-wrap:wrap;gap:6px}
.mod-n span{font-size:11.5px;padding:3px 9px;border:1px solid var(--line);color:var(--mut)}
.mod-f{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:6px;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--mut)}
.mod .mod-f .link{color:var(--gold2);font-size:13px}
@media (max-width:1180px){.mods{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.mods{grid-template-columns:1fr}.mod{grid-template-columns:128px 1fr;grid-template-rows:none}.mod-im{aspect-ratio:auto;height:100%}.mod-b{padding:14px 14px 16px}.mod-b p{display:none}.mod-t h3{font-size:1.7rem}.mod-f .link{display:none}}

/* kích thước và mã */
.sz-grp{margin-bottom:44px}
.sz-h{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;font-size:1.9rem;margin-bottom:18px}
.sz-h a:hover{color:var(--gold2)}
.sz-h small{font-family:var(--sans);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.szs{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.sz{display:grid;gap:14px;padding:18px;background:var(--ink2);border:1px solid var(--line);transition:.25s;align-content:start}
.sz:target,.sz:hover{border-color:var(--gold)}
.sz-fig{height:132px;display:grid;place-items:end center;background:radial-gradient(circle at 50% 80%,rgba(190,137,80,.22),transparent 70%)}
.sz-fig svg{width:120px;height:120px;stroke:var(--mut);stroke-width:1.2;fill:none}
.sz-fig svg .f{fill:rgba(227,182,126,.55);stroke:var(--gold2)}
.sz-code{display:block;font-size:1.25rem;color:var(--gold2);letter-spacing:.04em}
.sz-kt{display:block;font-size:14px}
.sz-w{display:block;font-size:12.5px;color:var(--mut)}
.sz-c{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}
.sz-c div{display:flex;gap:8px}
.sdot{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,var(--a) 0 45%,var(--b) 55%);box-shadow:0 0 0 1px rgba(255,255,255,.35);transition:.2s}
.sdot[aria-pressed=true]{box-shadow:0 0 0 2px var(--ink2),0 0 0 4px var(--gold2);transform:scale(1.1)}
.sz-ask{min-height:44px;padding:0 16px;font-size:13px}
.light .sz{background:var(--paper);border-color:var(--line-d);color:var(--tx-d)}
.light .sz:target,.light .sz:hover{border-color:var(--rust)}
.light .sz-code{color:var(--brown)}
.light .sz-fig svg{stroke:var(--mut-d)}
.light .sz-fig svg .f{fill:rgba(190,137,80,.45);stroke:var(--rust)}
.light .sz-w,.light .sz-c{color:var(--mut-d)}
.light .sz-h small{color:var(--rust)}
.light .sz-h a:hover{color:var(--rust)}
.light .sdot[aria-pressed=true]{box-shadow:0 0 0 2px var(--paper),0 0 0 4px var(--rust)}
.light .tbl-note{color:var(--mut-d)}
.sec:not(.light) .tbl-note{color:var(--mut)}

/* mã trong thẻ sắc đá và thông số */
.cchips{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:14px}
.cchips span{width:100%;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut-d)}
.cchip{padding:5px 10px;border:1px solid var(--line-d);font-size:12.5px;font-weight:600;color:var(--brown);transition:.2s}
.cchip:hover{background:var(--brown);color:#fff}
.pd-info .cchip{border-color:var(--line);color:var(--gold2)}
.pd-info .cchip:hover{background:var(--gold);color:var(--ink)}
.spec dd.cchips{display:flex}

/* phối cảnh không gian */
.gals{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gi{position:relative;display:block;aspect-ratio:4/5;overflow:hidden;background:var(--ink3)}
.gi img{width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.gi:hover img{transform:scale(1.05)}
.gi::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(14,11,8,.88))}
.gi span{position:absolute;left:16px;right:16px;bottom:14px;z-index:1;display:grid}
.gi b{font-family:var(--serif);font-weight:500;font-size:1.45rem}
.gi small{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold2)}
@media (max-width:1080px){.gals{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.gals{gap:10px}.gi span{left:10px;right:10px}.gi b{font-size:1.15rem}}

/* thông báo nhỏ */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,30px);opacity:0;pointer-events:none;z-index:80;max-width:min(92vw,440px);padding:14px 20px;background:var(--gold);color:var(--ink);font-size:14px;font-weight:600;line-height:1.5;box-shadow:0 14px 40px rgba(0,0,0,.4);transition:.3s}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* điện thoại và máy tính bảng: menu mở rộng (đặt cuối file để thắng quy tắc máy tính) */
@media (max-width:1180px){
  .nav,.tel{display:none}.burger{display:grid}
  .hd-act .btn{display:none}
  .brand img{height:50px}
  .hd.open .nav{display:block;position:absolute;top:var(--hd);left:0;right:0;max-height:calc(100svh - var(--hd));overflow-y:auto;background:var(--white);padding:4px 24px 28px;box-shadow:0 12px 24px rgba(0,0,0,.12)}
  .nv{display:grid;grid-template-columns:1fr 52px;align-items:stretch;border-bottom:1px solid var(--line-d)}
  .nav .nv-top{padding:17px 0;font-size:17px;font-weight:600;gap:14px;border:0}
  .nv-ic{width:24px;height:24px;color:var(--brown)}
  .nv-tg{display:block;position:relative;min-height:56px}
  .nv-tg::before{content:"";position:absolute;left:50%;top:50%;width:9px;height:9px;margin:-7px 0 0 -5px;border-right:2px solid var(--brown);border-bottom:2px solid var(--brown);transform:rotate(45deg);transition:transform .25s}
  .nv.open .nv-tg::before{transform:rotate(-135deg);margin-top:-2px}
  .nav .nv-sub{display:none;position:static;grid-column:1/-1;box-shadow:none;border:0;padding:0 0 14px 38px;min-width:0;background:transparent}
  .nv.open .nv-sub{display:grid}
  .nav .nv-sub a{padding:11px 0;border-bottom:1px solid var(--line-d);font-size:15px}
  .nav .nv-sub a:last-child{border:0}
  .nav .nv-o{display:block;padding:17px 0;border-bottom:1px solid var(--line-d);font-size:17px;font-weight:600}
}
@media (max-width:560px){.szs{grid-template-columns:1fr 1fr;gap:10px}.sz{padding:12px;gap:10px}.sz-fig{height:100px}.sz-fig svg{width:100px;height:100px}.sz-code{font-size:1.05rem}.sz-kt{font-size:13px}.sz-c span{display:none}.sz-c{justify-content:flex-start}.sdot{width:24px;height:24px}.sz-ask{min-height:40px;padding:0 6px;font-size:12px}.sz-h{font-size:1.5rem}}

/* nút menu có chữ cho khách dễ tìm */
.burger{width:auto;grid-auto-flow:column;gap:12px;padding:0 14px 0 12px;border:1px solid var(--brown);border-radius:2px;place-items:center;height:44px}
.burger em{font-style:normal;font-size:13px;font-weight:600;letter-spacing:.02em;color:var(--brown);white-space:nowrap}
.hd.open .burger{background:var(--brown)}.hd.open .burger em{color:#fff}.hd.open .burger span::before,.hd.open .burger span::after{background:#fff}
@media (max-width:400px){.burger{padding:0 10px;gap:9px}.burger em{font-size:12px}.brand img{height:44px}}

.vlist{max-height:560px;overflow-y:auto;padding-right:4px}
@media (max-width:820px){.vlist{max-height:none;grid-auto-flow:row}}

/* lời nhắn cạnh nút Zalo */
.dock{position:fixed}
.dock .dock-tip{position:absolute;right:64px;top:2px;width:max-content;max-width:176px;padding:11px 30px 11px 15px;border-radius:16px 16px 4px 16px;background:#fffdf9;color:var(--tx-d);font-size:13px;line-height:1.4;font-weight:500;box-shadow:0 10px 30px rgba(0,0,0,.35);display:block;width:auto;height:auto;transition:opacity .3s,transform .3s;animation:tipIn .6s .8s both,tipPulse 3.2s 2s infinite}
.dock .dock-tip b{color:var(--brown);font-weight:700}
.dock .dock-tip:hover{transform:none}
.dock .dock-tip .x{position:absolute;right:8px;top:5px;width:20px;height:20px;line-height:18px;text-align:center;font-style:normal;font-size:17px;color:var(--mut-d);cursor:pointer}
.dock .dock-tip.off{opacity:0;pointer-events:none;transform:translateX(8px)}
@keyframes tipIn{from{opacity:0;transform:translateX(10px)}to{opacity:1;transform:none}}
@keyframes tipPulse{0%,100%{box-shadow:0 10px 30px rgba(0,0,0,.35)}50%{box-shadow:0 10px 30px rgba(0,0,0,.35),0 0 0 6px rgba(190,137,80,.28)}}
@media (max-width:560px){.dock .dock-tip{right:56px;max-width:150px;font-size:12.5px;padding:9px 26px 9px 12px}}
@media (prefers-reduced-motion:reduce){.dock .dock-tip{animation:none}}
.dock .dock-tip{display:block;width:172px;max-width:none;height:auto;place-items:initial;text-align:left;white-space:normal}
@media (max-width:560px){.dock .dock-tip{width:154px;max-width:none}}