:root{
  --bg:#FFFFFF; --stage:#F2F2F0; --ink:#1A1A1A; --mute:#73736F; --line:#E6E6E2; --brand:#8F1A2B;
  --font:"Manrope","Noto Sans JP",system-ui,-apple-system,"Hiragino Sans",sans-serif;
  --wrap:1240px; --pad:clamp(16px,4vw,48px);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 var(--font);-webkit-font-smoothing:antialiased}
body.ja{font-family:"Noto Sans JP","Manrope",system-ui,"Hiragino Sans",sans-serif}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
a{color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
svg{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
svg.ill,svg.still{stroke:none;width:100%;height:auto;display:block}

.wordmark{font-weight:700;letter-spacing:.34em;font-size:17px;text-decoration:none;padding-left:.34em}
.wordmark.big{font-size:clamp(34px,6vw,56px);letter-spacing:.42em;font-weight:600}

.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--ink);color:#fff;border-radius:999px;padding:14px 28px;font-weight:600;font-size:15px;text-decoration:none;transition:background .15s}
.btn:hover{background:#000}
.btn:disabled{opacity:.45;cursor:wait}
.btn.wide{width:100%}
.lnk{color:var(--mute);font-size:14px;text-decoration:underline;text-underline-offset:3px}
.x{width:40px;height:40px;border-radius:50%;font-size:24px;line-height:1;color:var(--mute);display:grid;place-items:center}
.x:hover{background:var(--stage);color:var(--ink)}

/* màn chọn ngôn ngữ */
.gate{min-height:100vh;min-height:100dvh;display:grid;place-items:center;padding:32px var(--pad)}
.gate-in{width:100%;max-width:720px;text-align:center}
.gate-still{background:var(--stage);border-radius:32px;padding:32px 24px 8px;margin:36px 0 40px}
.gate-langs{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.lang-btn{min-width:150px;padding:14px 22px;border:1px solid var(--line);border-radius:999px;font-weight:600;font-size:16px;transition:.15s}
.lang-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* đầu trang */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--line)}
.top-in{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);height:64px;display:flex;align-items:center;gap:16px}
.top-r{margin-left:auto;display:flex;align-items:center;gap:10px}
.pmode{display:flex;background:var(--stage);border-radius:999px;padding:3px}
.pmode button{padding:7px 14px;border-radius:999px;font-size:14px;font-weight:600;color:var(--mute)}
.pmode button[aria-checked="true"]{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.lang-sel{height:38px;border:0;background:transparent;font-weight:600;font-size:14px;padding:0 4px;cursor:pointer}
.cart-btn{display:flex;align-items:center;gap:8px;height:38px;padding:0 6px 0 16px;border-radius:999px;background:var(--ink);color:#fff;font-weight:600;font-size:14px}
.cart-btn .n{min-width:26px;height:26px;border-radius:13px;background:#fff;color:var(--ink);display:grid;place-items:center;font-size:13px;padding:0 6px}

/* hero */
.hero{max-width:var(--wrap);margin:0 auto;padding:clamp(32px,6vw,80px) var(--pad) 40px;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(24px,4vw,64px);align-items:center}
.hero h1{font-size:clamp(34px,5.2vw,64px);line-height:1.04;letter-spacing:-.035em;font-weight:600;margin:0 0 20px}
body.ja .hero h1{letter-spacing:-.01em;line-height:1.2;font-size:clamp(28px,4vw,48px)}
.hero p{color:var(--mute);font-size:18px;max-width:34ch;margin:0 0 32px}
.hero-stage{background:var(--stage);border-radius:32px;padding:clamp(24px,4vw,56px) clamp(16px,3vw,40px) 12px}

.facts{max-width:var(--wrap);margin:0 auto;padding:8px var(--pad) 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,3vw,48px)}
.facts div{border-top:1px solid var(--ink);padding-top:14px}
.facts h3{margin:0 0 4px;font-size:16px;font-weight:600}
.facts p{margin:0;color:var(--mute);font-size:14px;max-width:32ch}

/* danh mục */
.catalog{max-width:var(--wrap);margin:0 auto;padding:clamp(40px,6vw,72px) var(--pad) 72px}
.cat-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}
.cat-head h2{font-size:clamp(28px,3.4vw,40px);letter-spacing:-.03em;font-weight:600;margin:0;line-height:1}
.search{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--ink);padding:6px 0;width:min(320px,50%)}
.search svg{width:18px;height:18px;flex:none}
.search input{border:0;outline:0;background:transparent;width:100%;font-size:15px}
.tabs{display:flex;gap:24px;overflow-x:auto;border-bottom:1px solid var(--line);margin-bottom:32px;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{flex:none;padding:12px 0;font-size:15px;font-weight:500;color:var(--mute);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button:hover{color:var(--ink)}
.tabs button.on{color:var(--ink);border-color:var(--ink);font-weight:600}

.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:40px 24px}
.tile{cursor:pointer;outline-offset:6px;border-radius:20px}
.stage{position:relative;background:var(--stage);border-radius:20px;aspect-ratio:1/1;display:grid;place-items:center;overflow:hidden;margin-bottom:14px}
.stage .ill{width:78%;transition:transform .35s ease}
.stage img{width:100%;height:100%;object-fit:cover}
.tile:hover .ill{transform:scale(1.04)}
.quick{position:absolute;right:12px;bottom:12px;width:40px;height:40px;border-radius:50%;background:#fff;display:grid;place-items:center;box-shadow:0 1px 4px rgba(0,0,0,.12);transition:.15s}
.quick svg{width:20px;height:20px;stroke-width:2}
.quick:hover{background:var(--ink);color:#fff}
.tile h3{font-size:15px;font-weight:600;line-height:1.35;margin:0 0 4px}
.meta{color:var(--mute);font-size:13px;margin:0 0 6px}
.price{margin:0;display:flex;align-items:baseline;gap:3px}
.price b{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.price span{color:var(--mute);font-size:13px}
.alt{margin:2px 0 0;color:var(--mute);font-size:13px;font-variant-numeric:tabular-nums}
.msg{grid-column:1/-1;text-align:center;color:var(--mute);padding:48px 0}
.skel .stage{animation:pulse 1.4s infinite}
.skel i{display:block;height:12px;border-radius:6px;background:var(--stage);margin:8px 0;width:70%}
@keyframes pulse{50%{opacity:.6}}

/* bảng chi tiết sản phẩm */
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.32);opacity:0;pointer-events:none;transition:opacity .2s;z-index:40}
.scrim.open{opacity:1;pointer-events:auto}
.sheet{position:fixed;z-index:41;left:50%;top:50%;transform:translate(-50%,-50%);width:min(920px,calc(100% - 32px));max-height:calc(100dvh - 48px);overflow:auto;background:#fff;border-radius:28px;display:grid;grid-template-columns:1fr 1fr;animation:pop .22s ease}
@keyframes pop{from{opacity:0;transform:translate(-50%,-48%)}}
.sheet>.x{position:absolute;right:14px;top:14px;z-index:2}
.sheet-stage{background:var(--stage);display:grid;place-items:center;padding:40px;min-height:360px}
.sheet-stage .ill{width:88%}
.sheet-stage img{width:100%;height:100%;object-fit:cover}
.sheet-body{padding:40px 36px 32px}
.sheet h2{font-size:28px;line-height:1.15;letter-spacing:-.02em;font-weight:600;margin:0 0 18px}
.vars{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.vars button{border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:14px}
.vars button.on{border-color:var(--ink);background:var(--ink);color:#fff}
.pack{margin:0 0 12px;font-size:14px}
.prows{border-top:1px solid var(--line);margin-bottom:20px}
.prow{display:grid;grid-template-columns:72px 1fr;align-items:baseline;padding:12px 0;border-bottom:1px solid var(--line);color:var(--mute)}
.prow b{font-size:20px;color:var(--mute);font-weight:600;font-variant-numeric:tabular-nums}
.prow b small{font-size:13px;font-weight:500}
.prow em{grid-column:2;font-style:normal;font-size:13px}
.prow.on{color:var(--ink)}
.prow.on b{color:var(--ink);font-size:26px}
.buy{display:flex;gap:10px}
.step{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;flex:none}
.step button{width:42px;height:48px;font-size:20px}
.step input{width:44px;text-align:center;border:0;height:48px;background:transparent;-moz-appearance:textfield}
.step input::-webkit-inner-spin-button{display:none}
.step.sm button{width:32px;height:32px;font-size:16px}
.step.sm span{min-width:22px;text-align:center;font-weight:600;font-size:14px}
.hint{color:var(--mute);font-size:13px;margin:10px 0 0}

/* giỏ hàng */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(440px,100%);background:#fff;z-index:41;transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;padding:20px 24px 24px;overflow-y:auto}
.drawer.open{transform:none}
.d-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.d-head h2{margin:0;font-size:22px;letter-spacing:-.02em;font-weight:600}
.d-head .x{margin-left:auto}
.tag{font-size:12px;font-weight:600;background:var(--stage);padding:4px 10px;border-radius:999px}
.lines{list-style:none;margin:0;padding:0}
.line{display:grid;grid-template-columns:64px 1fr auto;gap:14px;align-items:start;padding:16px 0;border-bottom:1px solid var(--line)}
.l-art{width:64px;height:64px;border-radius:12px;background:var(--stage);display:grid;place-items:center;overflow:hidden}
.l-art .ill{width:84%}
.l-art img{width:100%;height:100%;object-fit:cover}
.l-name{display:flex;flex-direction:column;min-width:0;gap:1px}
.l-name b{font-size:14px;font-weight:600;line-height:1.3}
.l-name small{color:var(--mute);font-size:12px}
.l-ctl{display:flex;align-items:center;gap:14px;margin-top:8px}
.l-amt{font-variant-numeric:tabular-nums;font-size:15px;font-weight:600}
.freebar{margin:18px 0 4px}
.freebar p{margin:0 0 8px;font-size:13px;font-weight:600}
.freebar span{display:block;height:4px;border-radius:2px;background:var(--stage);overflow:hidden}
.freebar i{display:block;height:100%;background:var(--ink)}
.sums{display:grid;grid-template-columns:1fr auto;gap:8px 0;margin:18px 0 20px;font-variant-numeric:tabular-nums;font-size:15px}
.sums dt{color:var(--mute)}
.sums dd{margin:0;text-align:right;font-weight:600}
.sums .tot{font-size:18px;font-weight:700;color:var(--ink);padding-top:12px;border-top:1px solid var(--ink);margin-top:4px}
.drawer .btn.wide{margin-top:auto}

/* đặt hàng */
.checkout{max-width:1100px;margin:0 auto;padding:24px var(--pad) 80px}
.back{margin-bottom:24px}
.co-grid{display:grid;gap:clamp(24px,5vw,72px);grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);align-items:start}
.checkout h1{font-size:clamp(28px,3.4vw,40px);letter-spacing:-.03em;font-weight:600;margin:0 0 28px;line-height:1.1}
.sum{position:sticky;top:88px;background:var(--stage);border-radius:24px;padding:28px}
.sum h2{margin:0 0 4px;font-size:20px;font-weight:600}
.sum .line{grid-template-columns:52px 1fr auto;border-color:#E0E0DC}
.sum .l-art{width:52px;height:52px;background:#fff}
.f{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.f>span{font-size:13px;font-weight:600}
.f input,.f select,.f textarea{border:1px solid var(--line);border-radius:12px;padding:13px 14px;background:#fff;width:100%;min-width:0}
.f input:focus,.f select:focus,.f textarea:focus{outline:0;border-color:var(--ink)}
.f small{color:var(--mute);font-size:12px}
.f.bad input,.f.bad select{border-color:#B3261E}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.seg button{border:1px solid var(--line);border-radius:12px;padding:13px 10px;font-weight:600;font-size:14px}
.seg button[aria-pressed="true"]{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.radio{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;margin-bottom:8px}
.radio input{grid-row:span 2;accent-color:var(--ink);width:18px;height:18px}
.radio b{font-weight:600;font-size:15px}
.radio small{color:var(--mute)}
.radio.on{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.err{color:#B3261E;font-weight:600;font-size:14px;margin:0 0 12px;min-height:0}
.err:empty{display:none}

/* hoàn tất */
.done{max-width:620px;margin:0 auto;padding:40px var(--pad) 80px;text-align:center}
.done-stage{background:var(--stage);border-radius:28px;padding:28px 20px 6px;margin-bottom:32px}
.done h1{font-size:clamp(28px,4vw,40px);letter-spacing:-.03em;font-weight:600;margin:0 0 12px;line-height:1.1}
.ono{font-size:18px}
.ono b{font-size:22px}
.banks{text-align:left;border-top:1px solid var(--ink);padding-top:16px;margin:24px 0}
.banks p{margin:0 0 10px}
.bank{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:12px 0;border-bottom:1px solid var(--line)}
.bank span{font-weight:700;font-size:18px;font-variant-numeric:tabular-nums}
.bank small{grid-column:1/-1;color:var(--mute)}
.muted{color:var(--mute);font-size:13px}
.done .btn{margin-top:24px}

/* chân trang */
.foot{background:var(--stage);margin-top:40px}
.foot-in{max-width:var(--wrap);margin:0 auto;padding:48px var(--pad);display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:24px;font-size:14px;color:var(--mute)}
.foot .wordmark{color:var(--ink)}
.foot p{margin:0}
.foot a{color:var(--ink);font-weight:600;text-decoration:none}

#toast{position:fixed;left:50%;bottom:96px;transform:translate(-50%,16px);background:var(--ink);color:#fff;padding:12px 20px;border-radius:999px;font-weight:600;font-size:14px;opacity:0;pointer-events:none;transition:.2s;z-index:60}
#toast.on{opacity:1;transform:translate(-50%,0)}

@media (max-width:1000px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}.foot-in{grid-template-columns:1fr 1fr}}
@media (max-width:820px){
  .hero{grid-template-columns:1fr;padding-top:28px}
  .hero p{margin-bottom:24px}
  .co-grid{grid-template-columns:1fr}
  .sum{position:static}
  .sheet{grid-template-columns:1fr;top:auto;bottom:0;left:0;transform:none;width:100%;max-height:92dvh;border-radius:24px 24px 0 0;animation:up .25s ease}
  @keyframes up{from{transform:translateY(40px);opacity:0}}
  .sheet-stage{min-height:0;padding:24px 24px 8px}
  .sheet-stage .ill{width:56%}
  .sheet-body{padding:20px 20px 28px}
  .sheet h2{font-size:22px}
}
@media (max-width:640px){
  .top-in{height:56px;gap:8px}
  .wordmark{font-size:15px;letter-spacing:.26em}
  .pmode button{padding:6px 10px;font-size:13px}
  .cart-btn{padding:0 4px 0 12px;font-size:13px}
  .lang-sel{padding:0}
  .facts{grid-template-columns:1fr;gap:14px}
  .cat-head{flex-direction:column;align-items:stretch}
  .search{width:100%}
  .tabs{gap:18px;margin-bottom:20px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 12px}
  .stage{border-radius:16px;margin-bottom:10px}
  .quick{width:34px;height:34px;right:8px;bottom:8px}
  .tile h3{font-size:14px}
  .price b{font-size:16px}
  .row2{grid-template-columns:1fr}
  .drawer{padding:16px}
  .foot-in{grid-template-columns:1fr}
}
@media (max-width:380px){.cart-btn{font-size:0;gap:0;padding:0 4px}.cart-btn .n{font-size:13px}}
body.ja h1,body.ja h2,body.ja h3{word-break:keep-all;line-break:strict}
body.ja .hero p,body.ja .facts p{max-width:none}