:root{--ink:#1c1c1e;--ink2:#4a4a4f;--mut:#8e8e93;--line:#e4e1dc;--paper:#fbfaf8;--desk:#2b2b2d;--acc:#b5502f;--bar:48px;--chap:42px}
*{box-sizing:border-box}html,body{height:100%}
body{margin:0;background:var(--desk);color:var(--ink);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow:hidden;overscroll-behavior:none}
img{max-width:100%;height:auto;display:block}button{font-family:inherit;cursor:pointer}a{color:inherit}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
/* bar */
.bar{position:fixed;top:0;left:0;right:0;height:var(--bar);display:flex;align-items:center;gap:6px;padding:0 8px;background:#1f1f21;color:#fff;z-index:30;padding-top:env(safe-area-inset-top)}
.bar .logo{height:16px;width:auto;filter:invert(1);margin:0 6px}.bar .pg{font-size:12px;color:#aeaeb2;letter-spacing:.04em;white-space:nowrap}.bar .sp{flex:1}
.ib{width:38px;height:38px;border:0;border-radius:10px;background:none;color:#fff;display:grid;place-items:center;position:relative}.ib:hover{background:#333}
.ib.inq b{position:absolute;top:3px;right:1px;background:var(--acc);color:#fff;font-size:10px;min-width:17px;height:17px;border-radius:9px;display:grid;place-items:center;padding:0 4px}
.chap{position:fixed;top:var(--bar);left:0;right:0;height:var(--chap);display:flex;gap:4px;align-items:center;overflow-x:auto;scrollbar-width:none;padding:0 8px;background:#1f1f21;border-top:1px solid #333;z-index:29}.chap::-webkit-scrollbar{display:none}
.chap button{flex:none;border:0;background:none;color:#aeaeb2;font-size:13px;padding:6px 11px;border-radius:999px;white-space:nowrap}.chap button.on{background:#fff;color:var(--ink);font-weight:600}
.filterpill{position:fixed;top:calc(var(--bar) + var(--chap) + 6px);left:50%;transform:translateX(-50%);z-index:28;background:var(--acc);color:#fff;border-radius:999px;font-size:12px;padding:4px 6px 4px 12px;display:flex;gap:6px;align-items:center}.filterpill button{border:0;background:rgba(255,255,255,.25);color:#fff;border-radius:999px;width:20px;height:20px;line-height:1}
/* stage */
.stage{position:fixed;top:calc(var(--bar) + var(--chap));bottom:3px;left:0;right:0;display:flex;align-items:center;justify-content:center}
.book{position:relative;width:100%;height:100%;overflow:hidden}
.page{position:absolute;inset:0;background:var(--paper);overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;display:flex;flex-direction:column;transition:transform .35s cubic-bezier(.2,.7,.2,1),opacity .35s}
.page.in-r{transform:translateX(40px);opacity:0}.page.in-l{transform:translateX(-40px);opacity:0}
.turn{display:none}
.progress{position:fixed;left:0;right:0;bottom:0;height:3px;background:#3a3a3c;z-index:20}.progress i{display:block;height:100%;background:var(--acc);width:0;transition:width .3s}
@media(min-width:900px){
  .stage{bottom:14px;top:calc(var(--bar) + var(--chap) + 14px)}
  .book{width:min(calc(100vw - 150px),calc((100vh - 140px)*1.48));height:min(calc(100vh - 140px),calc((100vw - 150px)/1.48));border-radius:4px;box-shadow:0 30px 60px rgba(0,0,0,.45),0 0 0 1px rgba(0,0,0,.2)}
  .turn{display:grid;place-items:center;position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:0;background:rgba(255,255,255,.1);color:#fff;font-size:30px;line-height:1}.turn:hover{background:rgba(255,255,255,.22)}.turn.prev{left:22px}.turn.next{right:22px}.turn:disabled{opacity:.2}
}
/* page chrome */
.ph{display:flex;justify-content:space-between;align-items:center;padding:16px 22px 0;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--mut)}.ph b{color:var(--acc);font-weight:600}
.pf{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding:10px 22px 14px;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}.pf img{height:11px;width:auto;opacity:.7}
.pbody{padding:14px 22px;flex:1}
h1,h2,h3{margin:0;letter-spacing:-.015em;line-height:1.12;font-weight:600}
.kicker{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--acc);font-weight:600;margin-bottom:10px}
p{color:var(--ink2);margin:0 0 .9em}
/* cover */
.cover{background:#111;color:#fff}.cover .cimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85}.cover .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.25),rgba(0,0,0,.15) 40%,rgba(0,0,0,.8))}
.cover .cin{position:relative;margin-top:auto;padding:28px 26px 34px}.cover .clogo{height:30px;width:auto;margin-bottom:22px}.cover h1{font-size:clamp(34px,6vw,64px);font-weight:300;letter-spacing:-.02em}.cover h1 b{font-weight:700}
.cover .sub{color:rgba(255,255,255,.85);font-size:13px;letter-spacing:.24em;text-transform:uppercase;margin-top:14px}.cover .ctop{position:relative;padding:20px 26px;font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:rgba(255,255,255,.8);display:flex;justify-content:space-between}
.cover .start{margin-top:22px;display:inline-flex;gap:8px;align-items:center;border:1px solid rgba(255,255,255,.6);color:#fff;background:none;border-radius:999px;padding:10px 18px;font-size:14px}
/* toc */
.toc h2{font-size:clamp(26px,3.4vw,38px);font-weight:300;margin-bottom:18px}.toc ol{list-style:none;padding:0;margin:0}
.toc li button{width:100%;display:flex;align-items:baseline;gap:10px;border:0;background:none;padding:11px 0;border-bottom:1px solid var(--line);text-align:left;color:var(--ink);font-size:16px}
.toc li button .n{font-size:12px;color:var(--acc);font-weight:700;width:26px}.toc li button .t{flex:1}.toc li button .c{font-size:12px;color:var(--mut)}.toc li button .p{font-variant-numeric:tabular-nums;color:var(--mut);font-size:13px;min-width:28px;text-align:right}
.toc .sub{padding-left:36px}.toc .sub button{font-size:14px;padding:7px 0;color:var(--ink2)}
.toc .series{margin-top:22px}.toc .series h3{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--mut);font-weight:600;margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:6px}.chips button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 11px;font-size:12.5px;color:var(--ink2)}.chips button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
@media(min-width:900px){.toc .pbody{display:grid;grid-template-columns:1.2fr 1fr;gap:44px;padding:20px 44px}.toc .series{margin-top:0}}
/* company */
.co .pbody{display:flex;flex-direction:column;gap:18px}.co h2{font-size:clamp(24px,3vw,34px);font-weight:300}.co h2 b{font-weight:700}
.vbox{position:relative;border-radius:6px;overflow:hidden;background:#000;aspect-ratio:16/9}.vbox video,.vbox img{width:100%;height:100%;object-fit:cover}.vbox .vph{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:6px;color:#fff;background:rgba(0,0,0,.45);font-size:13px}
.vbox .play{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-items:center}.vbox .play:after{content:"";border-left:16px solid var(--ink);border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:4px}
.fimg{border-radius:6px;overflow:hidden}.fimg img{width:100%;aspect-ratio:3/2;object-fit:cover}
.addr{display:grid;gap:8px;font-size:13.5px;margin:0}.addr div{display:grid;grid-template-columns:80px 1fr;gap:8px}.addr b{font-weight:600}.addr span{color:var(--ink2)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.stats div{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 8px;text-align:center}.stats b{display:block;font-size:clamp(17px,2.2vw,24px);white-space:nowrap}.stats span{font-size:11px;color:var(--mut);letter-spacing:.04em}
.certs{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 10px}.cert{text-align:center;font-size:10px;line-height:1.3;color:var(--ink2)}.cert .box{aspect-ratio:3/4;border:1.5px dashed #cfcac2;border-radius:4px;display:grid;place-content:center;color:var(--mut);font-size:10.5px;padding:6px;margin-bottom:4px}.cert.audit .box{border:0;background:linear-gradient(160deg,#1c1c1e,#3a3a3c);color:#fff;font-weight:700;font-size:15px}.cert img{width:100%;aspect-ratio:3/4;object-fit:contain;background:#fff;border:1px solid var(--line);margin-bottom:4px}@media(min-width:700px){.certs{grid-template-columns:repeat(4,1fr);gap:10px}.cert{font-size:10.5px}}@media(min-width:900px){.co3.co .pbody{align-items:start}}
@media(min-width:900px){.co .pbody{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center;padding:16px 44px}.co.rev .pbody>:first-child{order:2}}
/* chapter */
.chapter{background:#151515;color:#fff}.chapter .cimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.6}.chapter .shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.75),rgba(0,0,0,.1))}
.chapter .cin{position:relative;margin:auto 0;padding:30px 26px}.chapter .num{font-size:clamp(60px,10vw,120px);font-weight:200;line-height:1;color:rgba(255,255,255,.9)}.chapter h2{font-size:clamp(30px,5vw,56px);font-weight:300;margin:6px 0 10px}.chapter p{color:rgba(255,255,255,.8)}
.chapter .chips button{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);color:#fff}
/* product */
.prod .pbody{display:flex;flex-direction:column;gap:14px;padding-top:10px}
.gal{position:relative;background:#f1efeb;border-radius:4px;overflow:hidden;aspect-ratio:4/3;touch-action:pan-y}.gal img{width:100%;height:100%;object-fit:contain}
.gal .gn{position:absolute;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;border:0;background:rgba(255,255,255,.88);font-size:18px;line-height:1}.gal .gn.p{left:8px}.gal .gn.n{right:8px}
.gal .cnt{position:absolute;bottom:8px;right:10px;font-size:11px;background:rgba(0,0,0,.5);color:#fff;border-radius:999px;padding:2px 8px}
.ths{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;margin-top:6px}.ths img{width:58px;height:44px;object-fit:cover;border-radius:3px;opacity:.55;border:1.5px solid transparent;flex:none;cursor:pointer}.ths img.on{opacity:1;border-color:var(--ink)}
.model{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--acc)}.prod h2{font-size:clamp(22px,2.6vw,30px);margin:4px 0 2px}.prod .meta{font-size:12px;color:var(--mut);letter-spacing:.04em}
table.spec{width:100%;border-collapse:collapse;font-size:12.5px}table.spec th{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);font-weight:600;text-align:left;padding:6px 6px 6px 0;border-bottom:1.5px solid var(--ink)}table.spec td{padding:7px 6px 7px 0;border-bottom:1px solid var(--line);vertical-align:top}table.spec td.num{white-space:pre-line;font-variant-numeric:tabular-nums}
.tw{overflow-x:auto}
dl.kv{margin:0;font-size:12.5px}dl.kv dt{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);font-weight:600;margin-top:10px}dl.kv dd{margin:3px 0 0;color:var(--ink2);white-space:pre-line;overflow-wrap:anywhere}
.more{border:0;background:none;color:var(--acc);font-size:12px;font-weight:600;padding:2px 0}
.oem{font-size:12px;color:var(--ink2);border-left:2px solid var(--acc);padding:2px 0 2px 10px}
.addbox{display:grid;gap:8px}
.szpick{display:grid;gap:5px;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--mut);font-weight:600}
.szpick select,.szcustom{height:36px;border:1px solid var(--line);border-radius:10px;padding:0 10px;font-size:13px;color:var(--ink);width:100%;background:#fff;font-family:inherit;letter-spacing:0;text-transform:none;font-weight:400}
.acts{display:flex;gap:8px;flex-wrap:wrap}.btn{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:9px 15px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn.dk{background:var(--ink);border-color:var(--ink);color:#fff}.btn.wa{background:#1fa855;border-color:#1fa855;color:#fff}.btn.in{background:var(--acc);border-color:var(--acc);color:#fff}
.same h4{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);margin:4px 0 8px;font-weight:600}.same .row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.same button{border:0;background:none;padding:0;text-align:left}.same img{aspect-ratio:4/3;object-fit:cover;border-radius:3px;background:#eee}.same span{display:block;font-size:10.5px;font-weight:600;color:var(--ink2);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media(min-width:900px){
  .prod .pbody{display:grid;grid-template-columns:1.35fr 1fr;gap:30px;padding:10px 30px 4px;min-height:0;overflow:hidden}
  .prod .left{display:flex;flex-direction:column;min-height:0}.prod .gal{aspect-ratio:auto;flex:1;min-height:0}
  .prod .right{overflow-y:auto;padding-right:6px;display:flex;flex-direction:column;gap:12px;min-height:0}
}
/* back cover */
.back{background:#1c1c1e;color:#fff}.back .pbody{display:flex;flex-direction:column;gap:18px;justify-content:center;padding:26px}.back h2{font-size:clamp(26px,3.6vw,40px);font-weight:300}.back p{color:#c7c7cc}
.clist{display:grid;gap:12px;margin:0}.clist div{display:grid;grid-template-columns:92px 1fr;gap:10px;font-size:14px}.clist dt{color:#8e8e93;font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding-top:2px}.clist dd{margin:0;color:#fff;overflow-wrap:anywhere}.clist a{color:#fff}
.back .blogo{height:24px;width:auto;filter:invert(1)}
@media(min-width:900px){.back .pbody{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;padding:30px 54px}}
/* sheets */
.sheet{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.5);display:flex;justify-content:center;align-items:flex-start}.sheet[hidden]{display:none}
.sheet-in{background:#fff;width:min(640px,100%);max-height:100%;display:flex;flex-direction:column;border-radius:0 0 16px 16px}
.sheet.right{justify-content:flex-end;align-items:stretch}.sheet.right .sheet-in{width:min(420px,100%);border-radius:0;max-height:none;height:100%}
.sh-head{display:flex;gap:8px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line)}.sh-head input{flex:1;height:40px;border:1px solid var(--line);border-radius:10px;padding:0 12px;font-size:16px}.sh-head h3{flex:1;font-size:17px}
.x{border:0;background:#f2f2f4;width:34px;height:34px;border-radius:50%;font-size:22px;line-height:1}
.sh-filter{padding:8px 14px;font-size:13px;color:var(--ink2)}.sh-filter select{margin-left:6px;height:32px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.results{overflow-y:auto;padding:0 14px 14px}.res{display:grid;grid-template-columns:64px 1fr auto;gap:10px;align-items:center;width:100%;border:0;background:none;padding:8px 0;border-bottom:1px solid var(--line);text-align:left}.res img{width:64px;height:48px;object-fit:cover;border-radius:4px;background:#eee}.res b{display:block;font-size:12px;color:var(--acc)}.res span{font-size:13px}.res i{font-style:normal;font-size:12px;color:var(--mut)}
.inqlist{flex:1;overflow-y:auto;padding:4px 14px}.it{display:grid;grid-template-columns:56px 1fr 62px;gap:8px 10px;align-items:start;padding:10px 0;border-bottom:1px solid var(--line)}.it img{width:56px;height:42px;object-fit:cover;border-radius:4px;background:#eee}.it .im{min-width:0;display:grid;gap:4px}.it b{display:block;font-size:12px;color:var(--acc)}.it span{font-size:12.5px}.it select,.it input[type=text]{width:100%;max-width:100%;height:30px;border:1px solid var(--line);border-radius:8px;padding:0 6px;font-size:12px;background:#fff;font-family:inherit}.it input[type=number]{width:62px;height:30px;border:1px solid var(--line);border-radius:8px;padding:0 6px;font-size:14px}.it .rm{grid-column:2;justify-self:start;border:0;background:none;color:var(--mut);font-size:11.5px;padding:0}
.empty{color:var(--mut);text-align:center;padding:30px 10px;font-size:14px}
.inqform{padding:12px 14px calc(14px + env(safe-area-inset-bottom));border-top:1px solid var(--line);display:grid;gap:8px}.inqform input,.inqform textarea{border:1px solid var(--line);border-radius:10px;padding:9px 11px;font-size:15px;width:100%;font-family:inherit}.g2{display:grid;grid-template-columns:1fr 1fr;gap:8px}.lnk{border:0;background:none;color:var(--mut);font-size:12px}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:#fff;border-radius:999px;padding:9px 16px;font-size:13px;opacity:0;transition:opacity .25s;z-index:60;pointer-events:none}.toast.show{opacity:1}

[hidden]{display:none!important}
.prod .right>*{flex:none}

.szfixed{display:flex;align-items:center;height:36px;border:1px solid var(--line);border-radius:10px;padding:0 10px;font-size:13px;color:var(--ink);background:#f7f7f8;letter-spacing:0;text-transform:none;font-weight:400}
table.spec.dims td:first-child{color:var(--ink2)}table.spec.dims td.num{text-align:right;white-space:nowrap}