:root{
  /* layout: product sheet. Carbon ground like the anodised case; Sipeed red only where MaixStation is the subject */
  --bg:#0d0e0d; --bg2:#141514; --bg3:#1b1c1a; --line:rgba(236,234,226,.09); --line2:rgba(236,234,226,.18);
  --fg:#f1efe9; --fg2:#a9a79f; --fg3:#6d6b65;
  --acc:#e34548; --acc2:#ff7a6b; --accd:rgba(227,69,72,.13); --on-acc:#fff;
  --dgx:#4a4a46;
  --maxw:1180px; --gutter:clamp(18px,4.5vw,48px);
  --display:'Iowan Old Style','Charter',Georgia,'Noto Serif SC','Songti SC','STSong',serif;
  --body:-apple-system,BlinkMacSystemFont,'Segoe UI','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --render-bg:#dedcd8;
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
html,body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
body{background:radial-gradient(1000px 520px at 85% -8%, rgba(227,69,72,.10), transparent 62%),var(--bg)}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{margin:0;line-height:1.04;text-wrap:balance;letter-spacing:-.015em;font-weight:700;font-family:var(--display)}
h2{font-size:clamp(38px,6.2vw,80px)}
h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.02em}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
section{padding-block:clamp(72px,10vw,136px);position:relative;border-top:1px solid var(--line)}
.hero{border-top:0}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--fg2);font-weight:500;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.kicker::before{content:'';width:8px;height:8px;background:var(--acc);border-radius:2px;flex:none}
.sub{font-size:clamp(18px,2.2vw,26px);color:var(--fg2);font-weight:500;margin-top:22px;max-width:40ch;letter-spacing:-.01em;line-height:1.35}
.sub b{color:var(--fg);font-weight:600}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
[lang-zh]{display:none!important}
html[data-lang="zh"] [lang-en]{display:none!important}
html[data-lang="zh"] [lang-zh]{display:inline!important}
html[data-lang="zh"] div[lang-zh],html[data-lang="zh"] p[lang-zh]{display:block!important}
html[data-lang="zh"] h1,html[data-lang="zh"] h2,html[data-lang="zh"] h3{letter-spacing:0;font-weight:900}

/* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.12s}.rv.d2{transition-delay:.24s}.rv.d3{transition-delay:.36s}.rv.d4{transition-delay:.48s}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:rgba(13,14,13,.72);backdrop-filter:blur(16px) saturate(140%);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:58px}
.brand{font-weight:800;letter-spacing:-.01em;font-size:17px;font-family:var(--display);}
.navr{display:flex;align-items:center;gap:10px}
.lang{display:inline-flex;border:1px solid var(--line2);border-radius:999px;overflow:hidden;font-family:var(--mono);font-size:12px}
.lang button{background:none;border:0;color:var(--fg2);padding:6px 12px;cursor:pointer;white-space:nowrap}
.lang button[aria-pressed="true"]{background:var(--fg);color:var(--bg)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--fg);color:var(--bg);text-decoration:none;font-weight:600;padding:14px 22px;border-radius:10px;border:0;cursor:pointer;font-family:var(--body);font-size:15px;transition:transform .2s,box-shadow .2s,background .2s}
.btn:disabled{opacity:.6;cursor:wait;transform:none}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 30px rgba(227,69,72,.25)}
.btn.sm{padding:8px 14px;font-size:13px}
.btn.acc{background:var(--acc);color:var(--on-acc)}
.btn.acc:hover{background:#ec5558}
.btn.ghost{background:transparent;color:var(--fg);border:1px solid var(--line2)}

/* hero */
.hero{padding-block:clamp(56px,9vw,120px) clamp(40px,8vw,100px)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(28px,5vw,72px);align-items:center}
.hero h1{font-size:clamp(46px,5.9vw,84px);line-height:.92;letter-spacing:-.03em}
.hero .tag{font-size:clamp(20px,2.6vw,30px);font-weight:600;color:var(--fg2);margin-top:18px;letter-spacing:-.02em}
.hero .claim{margin-top:40px;font-size:clamp(22px,2.8vw,34px);font-weight:700;letter-spacing:-.025em;line-height:1.15}
.hero .claim em{font-style:normal;color:var(--acc)}
.hero .specs{display:grid;grid-template-columns:repeat(4,auto);justify-content:start;gap:0;margin-top:32px;font-family:var(--mono);font-size:12px;color:var(--fg3);border:1px solid var(--line2);border-radius:10px;overflow:hidden;width:max-content;max-width:100%}
.hero .specs span{padding:10px 16px;border-left:1px solid var(--line2);display:flex;flex-direction:column;gap:2px;letter-spacing:.06em}
.hero .specs span:first-child{border-left:0}
@media (max-width:540px){.hero .specs{grid-template-columns:repeat(2,1fr);width:100%}.hero .specs span:nth-child(3){border-left:0}.hero .specs span:nth-child(n+3){border-top:1px solid var(--line2)}}
.hero .specs b{color:var(--fg);font-weight:600;font-size:18px;letter-spacing:0}
.hero .cta{margin-top:38px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.hero .cta small{color:var(--fg3);font-size:13px}
.heroimg{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:4/4.4;background:var(--bg2)}
.heroimg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scale(1.06);transition:transform 6s ease-out}
.heroimg.in img{transform:scale(1)}
.heroimg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 65%,rgba(13,14,13,.5));pointer-events:none}

/* deposit strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(90deg,var(--accd),transparent 60%)}
.strip .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-block:18px}
.strip .t{font-weight:700;font-size:17px}
.strip .t span{color:var(--acc)}
.strip .s{color:var(--fg2);font-size:13.5px;margin-top:2px}

/* placeholder */
.ph{position:relative;border:1px dashed var(--line2);border-radius:18px;background:repeating-linear-gradient(135deg,var(--bg2) 0 14px,var(--bg3) 14px 28px);display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;color:var(--fg2);min-height:240px}
.ph .lab{position:absolute;top:12px;left:12px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:#f3b23c;border:1px solid #f3b23c;border-radius:4px;padding:2px 8px;background:rgba(13,14,13,.7)}
.ph p{font-size:13.5px;max-width:46ch;line-height:1.5}
.ph p b{display:block;color:var(--fg);margin-bottom:8px;font-size:15px}

/* photo */
.photo{position:relative;border-radius:14px;border:1px solid var(--line);overflow:hidden;background:var(--bg2)}
.photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.82) contrast(1.04)}
.r43{aspect-ratio:4/3}.r1{aspect-ratio:1}.r169{aspect-ratio:16/9}.r21{aspect-ratio:21/9}

/* tiny */
.sizes{display:flex;align-items:flex-end;gap:clamp(14px,4vw,56px);margin-top:56px;padding-bottom:18px;border-bottom:1px solid var(--line2);justify-content:flex-start;flex-wrap:wrap}
.sz{display:flex;flex-direction:column;align-items:center;gap:14px}
.sz .cube{border:1.5px solid var(--fg3);border-radius:8px;background:var(--bg2);transform-origin:bottom;transform:scaleY(0);transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.sizes.in .sz .cube{transform:none}
.sz.me .cube{border-color:var(--acc);background:var(--accd);box-shadow:0 0 40px rgba(227,69,72,.15)}
.sz .l{font-family:var(--mono);font-size:12px;color:var(--fg3);text-align:center;line-height:1.5}
.sz .l b{display:block;color:var(--fg);font-size:14px}
.sz.me .l b{color:var(--acc)}
.tiny-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,4vw,56px);align-items:end;margin-top:20px}

/* powerful */
.pw-head{display:grid;grid-template-columns:1fr auto;align-items:end;gap:20px}
.specline{font-family:var(--mono);font-size:13px;color:var(--fg3);display:flex;flex-wrap:wrap;gap:8px 20px;justify-self:end}
.specline b{color:var(--fg);font-weight:600;font-size:14px}
.charts{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:56px}
.chart{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:28px}
.chart h3{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.chart h3 small{font-family:var(--mono);font-size:11px;color:var(--fg3);font-weight:500;letter-spacing:.08em}
.metric{margin-top:26px}
.metric .mt{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--fg3);text-transform:uppercase;margin-bottom:12px}
.bar{display:grid;grid-template-columns:92px 1fr 70px;align-items:center;gap:12px;margin-bottom:10px}
.bar .who{color:var(--fg3);font-family:var(--mono);font-size:12px}
.bar.me .who{color:var(--fg)}
.bar .track{height:22px;background:rgba(255,255,255,.04);border-radius:6px;overflow:hidden}
.bar .fill{height:100%;border-radius:6px;background:var(--dgx);transform-origin:left;transform:scaleX(0);transition:transform 1.1s cubic-bezier(.2,.7,.2,1) .15s}
.bar.me .fill{background:var(--acc)}
.chart.in .bar .fill{transform:none}
.bar .val{font-family:var(--mono);font-weight:600;text-align:right;font-size:18px;color:var(--fg3)}
.bar.me .val{color:var(--fg)}
.bar .val.cnt{font-variant-numeric:tabular-nums}
.chart-foot{font-family:var(--mono);font-size:11.5px;color:var(--fg3);margin-top:16px;letter-spacing:.06em}

/* scalable topology */
.topo{margin-top:56px;background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:clamp(18px,3vw,40px);overflow:hidden}
.topo{overflow-x:auto}.topo svg{width:100%;min-width:720px;height:auto;display:block}
.topo .node{fill:var(--bg);stroke:var(--line2);stroke-width:1.2}
.topo .node.hi{stroke:var(--acc)}
.topo .chip{fill:var(--bg3);stroke:var(--fg3);stroke-width:1}
.topo .chip.hi{stroke:var(--acc);fill:rgba(227,69,72,.08)}
.topo .lnk{stroke:var(--acc);stroke-width:2;stroke-linecap:round;stroke-dasharray:6 8;animation:dash 2.4s linear infinite}
.topo .lnk.soft{stroke:var(--fg3);opacity:.6;animation-duration:4s}
@keyframes dash{to{stroke-dashoffset:-28}}
.topo .mem{font:700 30px var(--display);fill:var(--fg);letter-spacing:-.03em}
.topo .mdl{font:600 13px var(--body);fill:var(--acc)}
.topo .cap{font:500 11px var(--mono);fill:var(--fg3);letter-spacing:.1em}
.topo .how{font:500 12px var(--body);fill:var(--fg2)}
.topo .tier{opacity:0;transition:opacity .9s ease}
.topo.in .tier{opacity:1}
.topo.in .tier:nth-child(2){transition-delay:.15s}.topo.in .tier:nth-child(3){transition-delay:.3s}.topo.in .tier:nth-child(4){transition-delay:.45s}.topo.in .tier:nth-child(5){transition-delay:.6s}
@media (prefers-reduced-motion:reduce){.topo .lnk{animation:none}}
.topo-note{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.topo-note .photo{aspect-ratio:16/9}

/* efficient */
.eff{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:56px}
.effc{border-radius:16px;border:1px solid var(--line);padding:32px;min-height:340px;display:flex;flex-direction:column;background:var(--bg2)}
.effc.me{border-color:rgba(227,69,72,.45);box-shadow:inset 0 0 80px rgba(227,69,72,.06)}
.effc .who{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--fg3);text-transform:uppercase}
.effc .w{font-size:clamp(64px,9vw,120px);font-weight:800;letter-spacing:-.03em;line-height:1;margin-top:10px;font-family:var(--display);}
.effc.me .w{color:var(--acc)}
.effc .d{color:var(--fg2);font-size:15px;margin-top:8px}
.effc .ph{margin-top:auto;min-height:150px}

/* portable */
.port-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:18px;margin-top:56px;align-items:stretch}
.port-right{display:flex;flex-direction:column;gap:18px}
.ports{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:21/7;background:var(--bg2)}
.ports img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 55%}
.callouts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:4px}
.co{border-top:1px solid var(--line2);padding-top:14px}
.co .k{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--acc);text-transform:uppercase}
.co b{display:block;font-size:17px;margin-top:6px;font-weight:700}
.co span{display:block;color:var(--fg2);font-size:14px;margin-top:4px}

/* agent */
.agent{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,64px);align-items:center;margin-top:56px}
.rows{display:grid;gap:22px}
.row b{display:block;font-size:19px;font-weight:700;letter-spacing:-.01em}
.row span{display:block;color:var(--fg2);font-size:15px;margin-top:4px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.chip{font-family:var(--mono);font-size:12px;border:1px solid var(--line2);border-radius:999px;padding:6px 12px;color:var(--fg2)}

/* price */
.price{margin-top:56px;background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:clamp(18px,3vw,36px)}
.price{overflow-x:auto}.price svg{width:100%;min-width:640px;height:auto;display:block}
.price .pt{opacity:0;transition:opacity .6s ease}.price.in .pt{opacity:1}
.price.in .pt:nth-of-type(2){transition-delay:.2s}.price.in .pt:nth-of-type(3){transition-delay:.4s}.price.in .pt:nth-of-type(4){transition-delay:.6s}
.price .pl{stroke-dasharray:1000;stroke-dashoffset:1000;transition:stroke-dashoffset 1.6s cubic-bezier(.2,.7,.2,1) .2s}
.price.in .pl{stroke-dashoffset:0}
.price-note{color:var(--fg2);font-size:15px;margin-top:18px;max-width:66ch}

/* line art (efficient) */
.art{margin-top:auto;padding-top:24px}
.art svg{width:100%;height:auto;display:block}
.art .ln{fill:none;stroke:var(--fg3);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.art .ln.hi{stroke:var(--acc)}
.art .cable{fill:none;stroke:var(--acc);stroke-width:1.6;stroke-dasharray:5 6;animation:dash 2.4s linear infinite}
.art text{font:500 11px var(--mono);fill:var(--fg3);letter-spacing:.08em}
@media (prefers-reduced-motion:reduce){.art .cable{animation:none}}

/* screen mock (agent) */
.screen{aspect-ratio:4/3;border-radius:16px;background:radial-gradient(120% 90% at 30% 20%,#232421,#0a0a09 70%);border:1px solid var(--line);display:grid;place-items:center;padding:clamp(18px,4vw,40px)}
.lcd{width:min(100%,380px);aspect-ratio:240/284;border-radius:20px;background:#050505;border:10px solid #2a2b29;box-shadow:0 30px 80px rgba(0,0,0,.6),0 0 60px rgba(227,69,72,.08);padding:22px 20px;display:flex;flex-direction:column;gap:12px;font-family:var(--mono)}
.lcd .top{display:flex;justify-content:space-between;font-size:11px;color:var(--fg3);letter-spacing:.12em}
.lcd .top b{color:var(--acc);font-weight:600}
.lcd .mdl{font-family:var(--body);font-weight:800;font-size:clamp(17px,2vw,21px);color:var(--fg);line-height:1.15;margin-top:6px}
.lcd .tps{font-size:clamp(46px,6vw,64px);font-weight:600;color:var(--acc);line-height:1;margin-top:auto;font-variant-numeric:tabular-nums}
.lcd .tps small{font-size:13px;color:var(--fg3);margin-left:6px;font-weight:500}
.lcd .ip{font-size:12px;color:var(--fg2)}
.lcd .meter{height:6px;border-radius:3px;background:rgba(255,255,255,.06);overflow:hidden}
.lcd .meter i{display:block;height:100%;width:72%;background:var(--acc);border-radius:3px}

/* paid banner */
.paid{background:var(--acc);color:var(--on-acc);font-weight:700;text-align:center;padding:12px var(--gutter);font-size:15px}

/* token mix */
.mix{margin-top:40px;max-width:900px}
.mix .bar2{display:flex;height:14px;border-radius:7px;overflow:hidden;background:rgba(255,255,255,.05)}
.mix .bar2 i{display:block;height:100%}
.mix .lg{display:flex;flex-wrap:wrap;gap:8px 24px;margin-top:10px;font-family:var(--mono);font-size:12.5px;color:var(--fg2)}
.mix .lg b{color:var(--fg)}

/* configs */
.cfgs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:56px}
.cfg.feat{border-color:rgba(227,69,72,.45);box-shadow:inset 0 0 80px rgba(227,69,72,.06)}
.cfg{border:1px solid var(--line);border-radius:16px;padding:26px 22px;background:var(--bg2);display:flex;flex-direction:column;gap:8px;min-height:230px;transition:transform .3s,border-color .3s}
.cfg:hover{transform:translateY(-4px);border-color:var(--line2)}
.cfg .ico{width:44px;height:44px;border-radius:12px;background:var(--accd);color:var(--acc);display:grid;place-items:center;margin-bottom:10px}
.cfg .ico svg{width:24px;height:24px}
.cfg .k{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--acc);text-transform:uppercase}
.cfg h3{font-size:20px;margin-top:4px;line-height:1.15;}
.cfg .m{font-family:var(--mono);font-size:13px;color:var(--fg)}
.cfg p{color:var(--fg2);font-size:14px;margin-top:auto}

/* carousel */
.carousel{position:relative;margin-top:22px;border-radius:16px;overflow:hidden;background:var(--bg2);aspect-ratio:4/3;max-height:min(78vh,900px)}
.carousel .track{display:flex;height:100%;transition:transform .7s cubic-bezier(.2,.7,.2,1)}
.carousel figure{flex:0 0 100%;margin:0;position:relative;height:100%}
.carousel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.carousel figcaption{position:absolute;left:18px;bottom:16px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--fg);background:rgba(13,14,13,.6);backdrop-filter:blur(8px);padding:6px 10px;border-radius:8px}
.cbtn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:1px solid var(--line2);background:rgba(13,14,13,.55);backdrop-filter:blur(8px);color:var(--fg);font-size:26px;line-height:1;cursor:pointer;display:grid;place-items:center;transition:background .2s}
.cbtn:hover{background:rgba(227,69,72,.2)}
.cbtn.prev{left:14px}.cbtn.next{right:14px}
.dots{position:absolute;right:18px;bottom:18px;display:flex;gap:6px}
.dots button{width:8px;height:8px;border-radius:50%;border:0;background:rgba(255,255,255,.3);cursor:pointer;padding:0;transition:background .2s,width .2s}
.dots button[aria-selected="true"]{background:var(--acc);width:22px;border-radius:4px}
@media (max-width:900px){.carousel{aspect-ratio:3/4;max-height:none}}

/* faq */
.faq{max-width:860px;margin-top:40px}
details{border-top:1px solid var(--line2);padding:22px 0}
details:last-child{border-bottom:1px solid var(--line2)}
summary{cursor:pointer;font-weight:600;font-size:clamp(18px,2vw,22px);list-style:none;display:flex;justify-content:space-between;gap:16px;letter-spacing:-.01em}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';font-family:var(--mono);color:var(--fg3);flex:none;transition:transform .3s}
details[open] summary::after{transform:rotate(45deg)}
details div{color:var(--fg2);font-size:16px;margin-top:12px;max-width:66ch;line-height:1.6}

/* reserve */
.reserve{background:linear-gradient(180deg,transparent,var(--accd) 50%,transparent)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:40px 0 0;padding:0;list-style:none;max-width:960px}
.step{border:1px solid var(--line2);border-radius:16px;padding:18px;background:rgba(13,14,13,.5)}
.step b{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--acc);margin-bottom:10px}
.step span{color:var(--fg2);font-size:14px}
.survey{margin-top:36px;display:grid;gap:18px;max-width:900px}
fieldset{border:1px solid var(--line);border-radius:16px;padding:18px 20px;margin:0;background:rgba(13,14,13,.5)}
legend{font-weight:700;font-size:15px;padding:0 8px}
.opts{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px;margin-top:6px}
.opts label{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--fg2);padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);cursor:pointer;transition:border-color .2s,color .2s}
.opts label:has(:checked){border-color:var(--acc);color:var(--fg)}
.opts input{accent-color:var(--acc)}
.opts label:has(:disabled){opacity:.45;cursor:not-allowed}
input[type=text],input[type=email],textarea{width:100%;background:var(--bg);border:1px solid var(--line2);border-radius:10px;color:var(--fg);padding:11px 13px;font:inherit;font-size:14px}
textarea{min-height:90px;resize:vertical}
.hint{font-size:12.5px;color:var(--fg3);margin-top:6px}
.toast{margin-top:12px;color:var(--acc);font-size:14px}

/* community */
.links{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.links a svg{width:18px;height:18px;color:var(--acc)}
.links a{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line2);border-radius:999px;padding:11px 18px;text-decoration:none;color:var(--fg);font-size:14px;transition:background .2s}
.links a:hover{background:var(--bg3)}
footer{padding-block:28px 48px;border-top:1px solid var(--line);color:var(--fg3);font-size:12.5px}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}

@media (max-width:900px){
  .hero .wrap,.charts,.eff,.agent,.tiny-grid,.topo-note,.port-grid{grid-template-columns:1fr}
  .heroimg{order:-1;aspect-ratio:4/3.4}
  .cfgs{grid-template-columns:1fr 1fr}
  .callouts,.steps{grid-template-columns:1fr}
  .pw-head{grid-template-columns:1fr}.specline{justify-self:start}
  .ports{aspect-ratio:16/9}
}
@media (max-width:540px){.sz .cube{transform:scale(.7)!important;transform-origin:bottom}.sizes{gap:6px}.cfgs{grid-template-columns:1fr}.bar{grid-template-columns:70px 1fr 56px}.bar .val{font-size:15px}}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px}

/* reserve page */
.rs-head{padding-block:clamp(48px,7vw,88px) clamp(28px,4vw,44px);border-top:0}
.rs-head h1{font-size:clamp(40px,6.4vw,84px);letter-spacing:-.03em;line-height:.95}
.rs-head .lede{font-size:clamp(17px,2vw,21px);color:var(--fg2);margin-top:20px;max-width:52ch;line-height:1.5}
.rs-head .lede b{color:var(--fg);font-weight:600}
.rs-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:clamp(20px,4vw,48px);align-items:start}
.rs-body{padding-block:0 clamp(72px,10vw,120px);border-top:0}
.rs-aside{position:sticky;top:84px;display:grid;gap:14px}
.rs-aside .card{border:1px solid var(--line2);border-radius:14px;padding:20px;background:var(--bg2)}
.rs-aside h3{font-size:15px;font-family:var(--body);letter-spacing:0;font-weight:600;margin-bottom:12px}
.rs-aside ol{margin:0;padding:0;list-style:none;display:grid;gap:12px;counter-reset:s}
.rs-aside li{display:grid;grid-template-columns:26px 1fr;gap:8px;color:var(--fg2);font-size:14px;line-height:1.45;counter-increment:s}
.rs-aside li::before{content:counter(s);font-family:var(--mono);font-size:12px;color:var(--acc);border:1px solid var(--line2);border-radius:6px;height:22px;display:grid;place-items:center}
.rs-aside p{color:var(--fg2);font-size:13.5px;line-height:1.5;margin:0}
.rs-aside .amt{display:flex;align-items:baseline;gap:10px;font-family:var(--display);font-weight:800}
.rs-aside .amt b{font-size:44px;letter-spacing:-.02em}
.rs-aside .amt span{color:var(--fg3);font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.08em}
.notice{border:1px solid rgba(227,69,72,.45);background:var(--accd);border-radius:12px;padding:14px 16px;font-size:14px;color:var(--fg);line-height:1.5}
.done{border:1px solid var(--line2);border-radius:14px;padding:28px;background:var(--bg2)}
.done h2{font-size:clamp(28px,4vw,40px)}
.done p{color:var(--fg2);margin-top:12px;max-width:56ch}
@media (max-width:900px){.rs-grid{grid-template-columns:1fr}.rs-aside{position:static}}

.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brand .logo{display:block;line-height:0}
.brand .logo img{height:20px;width:auto}
.brand .bsep{width:1px;height:18px;background:var(--line2)}
.back{display:inline-flex;gap:6px;color:var(--fg2);text-decoration:none;font-size:14px;margin-bottom:22px}
.back:hover{color:var(--fg)}
.hero-copy{container-type:inline-size;min-width:0}
.hero .hero-copy h1{font-size:min(14.5cqi,96px)}
.notice b{font-weight:600}
@media (max-width:540px){.brand{gap:9px}.brand .logo img{height:16px}.brand .bsep{height:14px}.nav .btn.sm{padding:8px 12px}.back-top{display:none}}

/* reserve flow */
.stepper{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:0;padding:0;list-style:none;scroll-margin-top:80px}
.stepper li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--fg3);padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg2);min-width:0}
.stepper li i{font-style:normal;font-family:var(--mono);font-size:12px;width:20px;height:20px;border-radius:6px;display:grid;place-items:center;border:1px solid var(--line2);flex:none}
.stepper li[aria-current]{color:var(--fg);border-color:rgba(227,69,72,.55)}
.stepper li[aria-current] i{background:var(--acc);border-color:var(--acc);color:var(--on-acc)}
.stepper li.done{color:var(--fg2)}
.stepper li.done i{color:var(--acc);border-color:rgba(227,69,72,.55)}
.panel{border:1px solid var(--line2);border-radius:16px;padding:clamp(20px,3vw,32px);background:var(--bg2);display:grid;gap:14px}
.panel h2{font-size:clamp(26px,3.4vw,36px)}
.panel p{color:var(--fg2);max-width:60ch;line-height:1.55}
.panel p b{color:var(--fg);font-weight:600}
.panel a{color:var(--fg)}
.lab{font-size:13px;color:var(--fg2)}
.code-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.code-row input{flex:1 1 180px;max-width:260px;font-family:var(--mono);font-size:22px;letter-spacing:.4em;padding:12px 14px;background:var(--bg);border:1px solid var(--line2);border-radius:10px;color:var(--fg)}
.linkbtn{background:none;border:0;color:var(--fg2);padding:6px 0;font:inherit;font-size:13.5px;cursor:pointer;text-decoration:underline;text-underline-offset:3px;justify-self:start}
.linkbtn:disabled{cursor:default;text-decoration:none;color:var(--fg3)}
.ok-line{color:#5fc28a;font-size:14px;font-weight:600}
.pay-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.soon{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--acc);border:1px solid rgba(227,69,72,.5);border-radius:6px;padding:4px 8px}
.voucher{display:flex;align-items:center;gap:14px;flex-wrap:wrap;border:1px dashed rgba(227,69,72,.6);border-radius:12px;padding:16px 18px;background:var(--bg)}
.voucher code{font-family:var(--mono);font-size:clamp(22px,3vw,30px);letter-spacing:.08em;color:var(--fg)}
.demo{font-size:13px;color:var(--fg2);border:1px dashed var(--line2);border-radius:10px;padding:10px 14px}
.demo b{font-family:var(--mono);color:#f0b33c;letter-spacing:.12em;margin-right:6px}
@media (max-width:540px){.stepper{grid-template-columns:repeat(2,1fr)}}

/* figures: full images, never cropped; caption under each */
.fig{margin:0;border:1px solid var(--line2);border-radius:12px;padding:8px;background:var(--bg2);min-width:0}
.fig img{width:100%;height:auto;display:block;border-radius:6px}
.fig.render img,.fig.render .vbox{background:var(--render-bg)}
.fig figcaption{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--fg3);margin-top:8px;padding-inline:2px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.hero-fig{align-self:center}
.views{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-top:22px}
.views .vbox{aspect-ratio:4/3;border-radius:6px;display:grid;place-items:center;padding:10%}
.views .vbox img{background:none;border-radius:0;max-height:100%;width:auto;max-width:100%;object-fit:contain}
.topo-note .fig{align-self:start}
.port-grid{align-items:start}
.carousel{aspect-ratio:16/10}
.carousel img{object-fit:contain;background:var(--bg2)}
.carousel figure.render img{background:var(--render-bg);padding:5% 8%}
@media (max-width:900px){.carousel{aspect-ratio:4/3}.views{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:540px){.views{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:900px){.hero-fig{order:-1}}
/* type from the design export */
.hero .tag{font-family:var(--display);font-style:italic;font-weight:400;letter-spacing:-.01em}
.hero .claim{font-family:var(--display);font-weight:700;letter-spacing:-.015em;line-height:1.2}
.sub{letter-spacing:0}
/* five views: equal boxes */
.views .vbox{position:relative;padding:0}
.views .vbox img{position:absolute;inset:12%;width:76%;height:76%;max-height:none;object-fit:contain}
/* size blocks: keep three in one row */
.sizes{gap:clamp(12px,2.6vw,34px);flex-wrap:nowrap}
.sz .l{max-width:150px}
@media (max-width:540px){.sizes{flex-wrap:wrap}}
@media (max-width:540px){.views figure:first-child{grid-column:span 2}}
@media (max-width:430px){.brand .bsep,.brand .bname{display:none}}
.fig.render.white img,.carousel figure.render.white img{background:#fff}
.dots{background:rgba(13,14,13,.5);padding:6px 9px;border-radius:999px;backdrop-filter:blur(6px)}

/* scalable: two figures share one image height; width follows each image's aspect ratio */
.topo-note{display:flex;gap:18px;align-items:flex-start}
.topo-note .fig{flex:var(--ar,1) 1 0;min-width:0}
@media (max-width:540px){.topo-note{flex-direction:column}.topo-note .fig{flex:none;width:100%}.topo-note .fig.white{width:100%;align-self:stretch}}

/* tiny: front view to scale (MaixStation render; Mac mini and DGX Spark drawn from published dimensions) */
.front-cmp{container-type:inline-size;margin-top:clamp(36px,5vw,56px);padding:clamp(18px,3vw,36px) clamp(14px,3vw,36px) 18px;border:1px solid var(--line2);border-radius:12px;background:var(--bg2)}
.fc-row{--mm:calc(100cqi / 440);display:flex;align-items:flex-end;justify-content:center;gap:calc(var(--mm) * 18);padding-bottom:12px;border-bottom:1px solid var(--line2)}
.fc{margin:0;display:flex;flex-direction:column;align-items:center;gap:12px}
.fc-box{width:calc(var(--mm) * var(--w));height:calc(var(--mm) * var(--h));position:relative}
.fc.me .fc-box img{width:100%;height:100%;object-fit:fill;display:block}
.fc-box.macmini{background:linear-gradient(180deg,#e4e5e7,#c4c6c9 70%,#b3b5b8);border-radius:calc(var(--mm) * 6)}
.fc-box.macmini i{position:absolute;bottom:calc(var(--mm) * 18);height:calc(var(--mm) * 3);background:#3a3b3d;border-radius:99px}
.fc-box.macmini .p1{left:calc(var(--mm) * 20);width:calc(var(--mm) * 8)}
.fc-box.macmini .p2{left:calc(var(--mm) * 32);width:calc(var(--mm) * 8)}
.fc-box.macmini .p3{left:calc(var(--mm) * 46);width:calc(var(--mm) * 3.5)}
.fc-box.macmini .led{right:calc(var(--mm) * 14);width:calc(var(--mm) * 1.5);height:calc(var(--mm) * 1.5);background:#f4f4f4}
.fc-box.dgx{border-radius:calc(var(--mm) * 3);background:radial-gradient(circle at 50% 50%,#3b3326 0 26%,transparent 30%) 0 0/calc(var(--mm) * 3.2) calc(var(--mm) * 3.2),linear-gradient(180deg,#c9a65c,#9c7b3c)}
.fc figcaption{font-family:var(--mono);font-size:clamp(9px,2.6cqi,12px);color:var(--fg3);text-align:center;line-height:1.5;white-space:nowrap}
.fc figcaption b{display:block;color:var(--fg);font-size:clamp(10px,3cqi,14px)}
.fc.me figcaption b{color:var(--acc)}
.fc-note{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--fg3);margin-top:10px;text-align:right}
.vol{display:grid;gap:12px;align-content:center}
.vrow{display:grid;grid-template-columns:96px 1fr 74px;align-items:center;gap:12px;font-family:var(--mono);font-size:12.5px;color:var(--fg3)}
.vrow .t{height:12px;background:rgba(255,255,255,.05);border-radius:4px;overflow:hidden}
.vrow .t i{display:block;height:100%;background:var(--dgx);border-radius:4px}
.vrow.me{color:var(--fg)}.vrow.me .t i{background:var(--acc)}
.vrow .v{text-align:right}
.vol .sub{margin-top:12px}
.tiny-grid{align-items:center}
/* phone */
@media (max-width:540px){
  section{padding-block:56px}
  .hero{padding-block:24px 48px}
  .lcd{width:min(100%,260px)}
  .screen{aspect-ratio:auto;padding:28px 18px}
  .vrow{grid-template-columns:84px 1fr 66px;font-size:11.5px}
  .front-cmp{padding-inline:10px}
}
.fc-box.photo-box img{width:100%;height:100%;object-fit:contain;object-position:center bottom;display:block}

/* my codes floating widget */
.codes-fab{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:50;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.fab-btn{display:inline-flex;align-items:center;gap:8px;background:var(--acc);color:var(--on-acc);border:0;border-radius:999px;padding:11px 16px;font:600 14px var(--body);cursor:pointer;box-shadow:0 10px 30px rgba(0,0,0,.45)}
.fab-btn b{background:rgba(255,255,255,.22);border-radius:999px;padding:1px 8px;font-family:var(--mono);font-size:12px}
.fab-panel{width:min(320px,calc(100vw - 32px));max-height:min(60vh,420px);overflow:auto;background:var(--bg2);border:1px solid var(--line2);border-radius:14px;padding:14px;box-shadow:0 18px 50px rgba(0,0,0,.55)}
.fab-head{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--fg3);margin-bottom:10px}
.fab-panel ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.fab-panel li{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);border-radius:10px;padding:8px 10px;background:var(--bg)}
.fab-panel li code{font-family:var(--mono);font-size:15px;letter-spacing:.06em;color:var(--fg)}
.fab-panel li button{background:none;border:1px solid var(--line2);border-radius:8px;color:var(--fg2);font:500 12px var(--body);padding:4px 9px;cursor:pointer}
.fab-note{font-size:12px;color:var(--fg3);margin-top:10px;line-height:1.5}
/* front comparison sits on white: the product photos keep their studio white and soft shadows */
.front-cmp{background:#fff;border-color:rgba(0,0,0,.08)}
.front-cmp .fc-row{border-bottom-color:rgba(0,0,0,.12)}
.front-cmp .fc figcaption{color:#6b6b68}
.front-cmp .fc figcaption b{color:#1a1a19}
.front-cmp .fc.me figcaption b{color:var(--acc)}
.front-cmp .fc-note{color:#8a8985}
/* Pay buttons carry the provider's own logo, so they stay white in both themes; the QR panel needs a white quiet zone too */
.btn.paylogo{background:#fff;color:#1a1a1a;border:1px solid #d9d9d9;padding:12px 20px;gap:14px;min-height:52px}
.btn.paylogo:hover{background:#f4f4f4;box-shadow:0 4px 14px rgba(0,0,0,.18)}
.btn.paylogo:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn.paylogo img{display:block;height:22px;width:auto}
.btn.paylogo .amt{font-family:var(--mono, 'JetBrains Mono', monospace);font-weight:700;font-size:16px;padding-left:14px;border-left:1px solid #ddd;color:#1a1a1a}
.wxbox{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin-top:18px;padding:18px;border:1px solid var(--line2, rgba(128,128,128,.3));border-radius:12px}
.wxqr{width:196px;height:196px;flex:none;background:#fff;border-radius:8px;padding:10px;box-sizing:border-box}
.wxqr svg,.wxqr img{display:block;width:100%;height:100%}
.wxtext{display:flex;flex-direction:column;gap:8px;min-width:0;flex:1 1 220px;font-size:14px;line-height:1.6}
.wxtext b{font-size:16px}
.wxwait{opacity:.75}

/* intro: pinned scroll story */
.intro{border-top:0;padding-block:0;position:relative}
.intro .stage{position:relative}
.intro .beat{display:flex;flex-direction:column;justify-content:center;gap:clamp(14px,2vw,26px);min-height:72vh;padding-block:clamp(40px,8vh,90px)}
.intro p{margin:0;font-family:var(--display);letter-spacing:-.025em;line-height:1.08;text-wrap:balance;max-width:18ch}
.intro .q{font-size:clamp(40px,7vw,96px);font-weight:700}
.intro .q + .q{color:var(--fg2)}
.intro .cost{font-size:clamp(36px,6.2vw,84px);font-weight:700;display:flex;flex-direction:column;gap:.12em;max-width:none}
.intro .cost .tmr{color:var(--acc);font-size:1.25em}
.intro .fact{font-size:clamp(26px,3.8vw,50px);font-weight:600;max-width:24ch}
.intro .fact.dim{color:var(--fg3)}
.intro .turn{font-size:clamp(56px,11vw,150px);font-weight:800;letter-spacing:-.04em}
.intro .vow{font-size:clamp(34px,5.4vw,72px);font-weight:700;max-width:20ch}
.intro .free{font-size:clamp(22px,2.8vw,34px);font-weight:600;color:var(--acc)}
html[data-lang="zh"] .intro p{max-width:none;letter-spacing:0}
.intro-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter) 24px}
.intro .dots{display:flex;gap:8px}
.intro .dots i{width:22px;height:3px;border-radius:2px;background:var(--line2);transition:background .4s}
.intro .dots i.on{background:var(--acc)}
.intro .skip{background:transparent;border:1px solid var(--line2);color:var(--fg2);border-radius:999px;padding:8px 16px;font:500 13px var(--body);cursor:pointer;transition:color .2s,border-color .2s}
.intro .skip:hover{color:var(--fg);border-color:var(--fg2)}

/* pinned mode (JS on, motion allowed): progress is driven by scroll position */
.intro.pinned{height:calc(5 * 50vh + 100vh);height:calc(5 * 50svh + 100svh)}
.intro.pinned .stage{position:sticky;top:58px;height:calc(100vh - 58px);height:calc(100svh - 58px);display:flex;flex-direction:column;overflow:hidden}
.intro.pinned .beats{position:relative;flex:1;width:100%}
.intro.pinned .beat{position:absolute;inset:0;padding-inline:var(--gutter);min-height:0;pointer-events:none}
.intro.pinned .ln{will-change:opacity,transform}
.intro.pinned .cost .ln{display:block}
.intro-bar{transition:opacity .4s}
.intro.pinned.intro-end .intro-bar{opacity:0;pointer-events:none}
.intro .snap{position:absolute;left:0;width:1px;height:1px;scroll-snap-align:start;pointer-events:none}
html.intro-snap{scroll-snap-type:y proximity;scroll-padding-top:58px}
@media (max-width:540px){.intro-bar{padding-bottom:18px}.intro .dots i{width:16px}}
.intro .dots{position:static}
@media (max-width:540px){html[data-lang="zh"] .intro .turn{font-size:clamp(40px,12vw,56px)}}

/* intro -> reveal hand-off */
.intro .cue{position:relative;width:2px;height:0;margin-top:clamp(18px,3vh,32px);background:linear-gradient(var(--acc),rgba(227,69,72,0));border-radius:2px}
.intro .cue::after{content:"";position:absolute;left:50%;bottom:0;width:8px;height:8px;margin-left:-4px;border-radius:50%;background:var(--acc);box-shadow:0 0 18px 4px rgba(227,69,72,.55);animation:cueGlow 2.4s ease-in-out infinite}
@keyframes cueGlow{0%,100%{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}
.intro:not(.pinned) .cue{height:72px}
.hero.rise .hero-copy,.hero.rise .hero-fig{will-change:opacity,transform,filter;transform-origin:center 60%}
@media (prefers-reduced-motion:reduce){.intro .cue::after{animation:none}}
.hero.rise .hero-copy,.hero.rise .hero-fig{transition:none}
.intro .dots{background:none;padding:0;backdrop-filter:none;border-radius:0}

/* intro controls moved out of the hand-off zone */
.intro-bar{display:none}
.idots{position:absolute;right:clamp(10px,2.4vw,28px);top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;transition:opacity .4s;z-index:2}
.idots i{width:3px;height:16px;border-radius:2px;background:var(--line2);transition:background .4s}
.idots i.on{background:var(--acc)}
.intro:not(.pinned) .idots{display:none}
.intro.intro-end .idots{opacity:0}
.nav .skip{background:transparent;border:0;color:var(--fg2);font:500 13px var(--body);cursor:pointer;padding:6px 4px;white-space:nowrap;transition:opacity .3s,color .2s}
.nav .skip:hover{color:var(--fg)}
html.past-intro .nav .skip{opacity:0;pointer-events:none}
@media (max-width:420px){.nav .skip{font-size:12px;padding:6px 2px}}

/* red cue: a short line left of the last sentence, original whole-line breathing */
.intro .free{display:flex;align-items:stretch;gap:.6em}
.intro .free .cue{position:static;flex:none;width:2px;height:auto;margin:0;background:none;border-radius:0;transform-origin:top}
.intro .free .cue::before{content:"";display:block;width:100%;height:100%;background:linear-gradient(var(--acc),rgba(227,69,72,.15));transform-origin:top;animation:cue 2.2s ease-in-out infinite}
.intro .free .cue::after{content:none}
@keyframes cue{0%,100%{opacity:.25;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){.intro .free .cue::before{animation:none}}

/* reveal overlaps the last pinned screen so the product cross-fades in place */
html.intro-snap .hero{margin-top:calc(-100vh + 58px);margin-top:calc(-100svh + 58px);position:relative;z-index:3;scroll-snap-align:start}

/* in-place FAQ under the benchmark charts */
.pfaq{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:40px}
.pfaq .qa{border-top:1px solid var(--line2);padding-top:18px;display:flex;flex-direction:column;gap:10px}
.pfaq h3{font-size:clamp(17px,1.6vw,20px);line-height:1.3;letter-spacing:-.01em}
.pfaq p{color:var(--fg2);font-size:15px;line-height:1.55;margin:0}
.pfaq .math{font-family:var(--mono);font-size:12px;color:var(--fg3);line-height:1.7;letter-spacing:.02em;margin-top:2px}
@media (max-width:900px){.pfaq{grid-template-columns:1fr;gap:6px}}

/* front panel with aligned port labels */
.portfig .pv{background:var(--render-bg);border-radius:6px;padding:7% 6% 0}
.portfig .pv img{background:none;border-radius:0}
.plabels{position:relative;list-style:none;margin:0;padding:0;height:68px}
.plabels li{position:absolute;left:calc(var(--x) * 1%);transform:translateX(-50%);font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:#3a3a37;white-space:nowrap;text-align:center}
.plabels li::before{content:"";position:absolute;left:50%;bottom:100%;width:1px;background:rgba(0,0,0,.35)}
.plabels li.a{top:14px}.plabels li.a::before{height:12px;margin-bottom:2px}
.plabels li.b{top:40px}.plabels li.b::before{height:38px;margin-bottom:2px}
@media (max-width:540px){.plabels{height:60px}.plabels li{font-size:9.5px;letter-spacing:0}.plabels li.a{top:12px}.plabels li.a::before{height:10px}.plabels li.b{top:34px}.plabels li.b::before{height:32px}}

/* range bars: solid to today's low, lighter to the high */
.chart .bar{grid-template-columns:92px 1fr 128px}
.bar.rng .fill{background:rgba(227,69,72,.35);display:flex}
.bar.rng .fill i{display:block;height:100%;background:var(--acc);border-radius:6px 0 0 6px}
.bar.rng .val{font-size:16px;white-space:nowrap}
.chart-foot{text-transform:none;letter-spacing:.02em;line-height:1.6}
@media (max-width:540px){.chart .bar{grid-template-columns:70px 1fr 96px}.bar.rng .val{font-size:12.5px}}

/* agent ready: two rings around the device */
.eco{position:relative;width:min(100%,760px);aspect-ratio:1;margin:40px auto 0}
.eco .ring{position:absolute;border-radius:50%;border:1px dashed var(--line2);left:50%;top:50%;transform:translate(-50%,-50%)}
.eco .r1{width:54%;height:54%}
.eco .r2{width:82%;height:82%}
.eco .ring b{position:absolute;left:50%;top:0;transform:translate(-50%,-50%);background:var(--bg);padding:2px 10px;font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg3);white-space:nowrap}
.eco .r1 b{color:var(--fg2)}
.eco .dev{position:absolute;left:50%;top:50%;width:30%;transform:translate(-50%,-50%);container-type:inline-size;filter:drop-shadow(0 18px 30px rgba(0,0,0,.5))}
.eco .dev img{width:100%;display:block;border-radius:6%}
.tlcd{position:absolute;left:50%;top:47%;width:52%;aspect-ratio:240/280;transform:translate(-50%,-50%);background:#06090c;border-radius:6cqw;box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);padding:5cqw 4.5cqw;display:flex;flex-direction:column;gap:2.4cqw;font-family:var(--mono);color:#e8f0f2}
.tlcd .t1{display:flex;justify-content:space-between;font-size:4.2cqw;color:#9aa6ab}
.tlcd .live{color:#4cc38a}
.tlcd .t2{font-size:5.4cqw;background:rgba(255,255,255,.06);border-radius:2cqw;padding:1.6cqw 2cqw;text-align:center}
.tlcd .t3{font-size:4.6cqw;color:#cfd8db;margin-top:1cqw}
.tlcd .t4{font-size:13cqw;font-weight:600;color:var(--acc);line-height:1;margin-top:auto}
.tlcd .t4 small{font-size:4.2cqw;color:#9aa6ab;margin-left:1.5cqw}
.tiles{list-style:none;margin:0;padding:0}
.tile{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);width:13.5%;aspect-ratio:1;background:#f4f3ef;border-radius:18%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6%;box-shadow:0 8px 24px rgba(0,0,0,.35);transition:transform .25s}
.tile:hover{transform:translate(-50%,-50%) scale(1.06)}
.tile img{width:46%;height:46%;object-fit:contain}
.tile span{font:600 clamp(9px,1.3vw,12px)/1.1 var(--body);color:#1b1c1a;text-align:center;padding-inline:4px}
.tile.f{width:12.5%;background:#fff}
.eco-rows{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:40px}
.eco-rows .row b{display:block;font-size:18px;font-weight:700;margin-bottom:6px}
.eco-rows .row span{color:var(--fg2);font-size:15px}
@media (max-width:640px){
  .eco{aspect-ratio:auto;display:flex;flex-direction:column;align-items:center;gap:22px}
  .eco .ring{display:none}
  .eco .dev{position:relative;left:auto;top:auto;transform:none;width:62%}
  .tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;width:100%}
  .tiles::before{grid-column:1/-1;font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg3)}
  html[data-lang="en"] .tiles.fw::before{content:"Inference frameworks"} html[data-lang="zh"] .tiles.fw::before{content:"推理框架"}
  html[data-lang="en"] .tiles.ag::before{content:"Agents"} html[data-lang="zh"] .tiles.ag::before{content:"智能体"}
  .tile,.tile.f{position:relative;left:auto;top:auto;transform:none;width:auto}
  .tile:hover{transform:none}
  .eco-rows{grid-template-columns:1fr}
}
.eco .dev img{height:auto;aspect-ratio:1}

/* inline "Other" input inside its option */
.opts label.has-oth{gap:8px}
.opts label.has-oth .oth{flex:1;min-width:0;width:auto;background:transparent;border:0;border-bottom:1px solid var(--line2);border-radius:0;padding:2px 2px;font:inherit;font-size:14px;color:var(--fg);margin:0}
.opts label.has-oth .oth:focus{outline:none;border-bottom-color:var(--acc)}

fieldset.miss{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc)}
fieldset{transition:border-color .3s,box-shadow .3s}

legend .req{color:var(--acc);font-style:normal;margin-left:4px}