/* XiaoYa Tech: shared stylesheet (plain CSS, self-hosted font, no CDN).
   Theme: ONE theme per page that follows the system (light / dark tokens below).
   Accent: the logo's signal blue, used for links + focus only. CTAs are ink pills.
   Shape rule: interactive controls = full pill; media + panels = 20px; inputs = 12px.
   Z-index scale: skip link 300, nav 100. Nothing else is layered. */
@font-face{font-family:"Geist";src:url(../fonts/Geist-Variable.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{
  --bg:#fafafa; --surface:#f0f1f2; --raise:#ffffff; --ink:#111214; --ink-2:#34373b; --muted:#5f6368; --line:#dcdfe2; --line-2:#c4c8cc;
  --accent:#0066cc; --cta-bg:#111214; --cta-fg:#fafafa; --field:#ffffff; --err:#c4001a; --err-bg:#fff4f5;
  --chroma:#00b140; --on-chroma:#0a0f0b;
  --shade:0 1px 2px rgba(17,18,20,.04),0 12px 32px -12px rgba(17,18,20,.14);
  --nav-h:56px; --gutter:24px; --r:20px; --r-in:12px;
  --sans:"Geist",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  color-scheme:light dark;
}
:lang(zh-Hant){--sans:"Geist",-apple-system,BlinkMacSystemFont,"PingFang TC","Hiragino Sans CNS","Noto Sans CJK TC","Microsoft JhengHei",sans-serif}
@media (prefers-color-scheme:dark){
  :root{--bg:#0c0d0e; --surface:#151618; --raise:#1c1d20; --ink:#eceef0; --ink-2:#c9ccd0; --muted:#9a9ea4; --line:#2a2d31; --line-2:#3a3e43;
    --accent:#3d9bff; --cta-bg:#eceef0; --cta-fg:#0c0d0e; --field:#151618; --err:#ff7b7b; --err-bg:#2a1416;
    --shade:0 0 0 1px rgba(255,255,255,.06)}
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav-h) + 16px)}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.55;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;font-feature-settings:"ss01"}
img,svg{display:block;max-width:100%}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:.2em}
h1,h2,h3,h4,p,ol,ul,dl,dd,figure{margin:0}
ol,ul{padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.ic{width:1.1em;height:1.1em;flex:none}
.skip{position:absolute;left:12px;top:-60px;z-index:300;background:var(--cta-bg);color:var(--cta-fg);padding:8px 14px;border-radius:999px}
.skip:focus{top:8px}
.ph{display:inline-block}
.tbd{color:var(--muted)}
.status{font-size:14px;font-weight:500;color:var(--muted);margin-left:10px;white-space:nowrap;letter-spacing:0}

/* ---------- nav ---------- */
.nav-sentinel{position:absolute;top:0;height:1px;width:1px}
.nav{position:sticky;top:0;z-index:100;height:var(--nav-h);background:color-mix(in srgb,var(--bg) 82%,transparent);
  -webkit-backdrop-filter:saturate(160%) blur(18px);backdrop-filter:saturate(160%) blur(18px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.stuck{border-bottom-color:var(--line)}
@supports not (background:color-mix(in srgb,red 50%,blue)){.nav{background:var(--bg)}}
.nav-in{max-width:1168px;height:100%;margin:0 auto;padding:0 var(--gutter);display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:16px;font-weight:600;letter-spacing:-.01em;margin-right:auto;white-space:nowrap}
.brand:hover{text-decoration:none}
.brand svg{width:24px;height:24px;flex:none}
.nav-links{display:flex;align-items:center;gap:26px}
.nav a.nl,.nav .lang{font-size:14px;color:var(--ink-2)}
.nav a.nl:hover,.nav .lang:hover{color:var(--ink);text-decoration:none}
.nav .lang{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:999px;border:1px solid var(--line-2);font-size:13px}
.nav-cta{font-size:14px;font-weight:500;line-height:1;padding:9px 16px;border-radius:999px;background:var(--cta-bg);color:var(--cta-fg);white-space:nowrap;transition:transform .25s var(--ease),opacity .2s}
.nav-cta:hover{text-decoration:none;opacity:.88}
.nav-cta:active{transform:scale(.97)}
.nav-cta.nav-cta-plain{background:none;color:var(--ink);padding:9px 0;font-weight:600}
.nav-cta.nav-cta-plain:hover{text-decoration:underline;opacity:1}
.nav-tog{display:none;width:36px;height:36px;margin-right:-8px;border:0;background:none;color:var(--ink);cursor:pointer;align-items:center;justify-content:center;border-radius:999px}
.nav-tog .ic{width:18px;height:18px;transition:transform .3s var(--ease)}
.nav-tog[aria-expanded=true] .ic{transform:rotate(180deg)}
.nav-menu{display:none}
@media (max-width:833px){
  .nav-in{gap:14px}
  .nav-links{display:none}
  .nav-tog{display:inline-flex}
  .nav-menu{position:absolute;left:0;right:0;top:var(--nav-h);background:var(--bg);padding:4px var(--gutter) 20px;border-bottom:1px solid var(--line)}
  .nav-menu.open{display:block}
  .nav-menu a{display:block;padding:14px 0;font-size:19px;font-weight:500;color:var(--ink);border-bottom:1px solid var(--line)}
  .nav-menu a:last-child{border-bottom:0}
}

/* ---------- type ---------- */
.h-xl{font-size:clamp(34px,4.6vw,60px);line-height:1.12;font-weight:650;letter-spacing:-.022em;text-wrap:balance}
.h-l{font-size:clamp(30px,3.6vw,46px);line-height:1.15;font-weight:650;letter-spacing:-.02em}
.h-m{font-size:clamp(22px,2.2vw,28px);line-height:1.25;font-weight:600;letter-spacing:-.01em}
.copy{margin-top:20px;max-width:34em;font-size:clamp(17px,1.5vw,20px);line-height:1.65;color:var(--muted);text-wrap:pretty}
.copy b{color:var(--ink);font-weight:600}
.foot{margin-top:36px;font-size:13px;color:var(--muted)}
sup.fn{font-size:.5em;margin-left:2px;vertical-align:super;line-height:0;color:var(--muted);font-weight:500}

/* ---------- buttons ---------- */
.ctas{display:flex;flex-wrap:wrap;align-items:center;gap:14px 26px;margin-top:36px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:16px;font-weight:500;line-height:1.2;padding:14px 26px;border-radius:999px;background:var(--cta-bg);color:var(--cta-fg);border:0;cursor:pointer;white-space:nowrap;
  transition:transform .3s var(--ease),opacity .2s}
.btn:hover{text-decoration:none;opacity:.88;transform:translateY(-1px)}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.45;cursor:progress;transform:none}
.btn-block{display:flex;width:100%;padding:17px 26px}
.off{font-size:15px;color:var(--muted)}
.more{display:inline-flex;align-items:center;gap:6px;font-size:16px;font-weight:500}
.more .ic{transition:transform .3s var(--ease)}
.more:hover .ic{transform:translateX(3px)}

/* ---------- reveal ---------- */
@media (prefers-reduced-motion:no-preference){
  .js .rv{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
  .js .rv.in{opacity:1;transform:none}
}

/* ---------- layout ---------- */
.s{padding:clamp(88px,11vw,150px) var(--gutter)}
.s-tint{background:var(--surface)}
.w{max-width:1120px;margin:0 auto}

/* ---------- hero (split: copy left, stage right) ---------- */
.hero{padding:clamp(32px,5vw,72px) var(--gutter) clamp(40px,5vw,72px)}
.hero-in{max-width:1168px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.22fr);gap:clamp(40px,5.6vw,80px);align-items:center}
.hero h1{font-weight:inherit}
.h1-brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:600;letter-spacing:-.005em;color:var(--ink-2)}
.h1-brand svg{width:30px;height:30px}
.h1-tag{display:block;margin-top:22px;font-size:clamp(46px,6.2vw,86px);line-height:1.08;font-weight:700;letter-spacing:-.035em;color:var(--ink)}
.lede{margin-top:24px;font-size:clamp(18px,1.6vw,21px);line-height:1.55;color:var(--muted);max-width:26em}
.stage{position:relative;aspect-ratio:800/580;border-radius:var(--r);overflow:hidden;background:var(--chroma);box-shadow:var(--shade)}
.stage>svg{width:100%;height:100%}
.stage .hd{fill:#fff}
@media (prefers-reduced-motion:no-preference){
  .hero-txt>*{animation:rise .9s var(--ease) both}
  .hero-txt>:nth-child(2){animation-delay:.08s}.hero-txt>:nth-child(3){animation-delay:.16s}.hero-txt>:nth-child(4){animation-delay:.24s}
  .hero-stage{animation:rise 1s var(--ease) .1s both}
  .hero-stage .duck path{stroke-dasharray:1;animation:draw 1.5s var(--ease) .45s both}
  .hero-stage .eye{animation:fade .4s ease 1.5s both}
  .hero-stage .sel{animation:fade .5s ease 1.7s both}
  .mark-xl .mk-l path{stroke-dasharray:1;animation:draw 1.6s var(--ease) .2s both}
  .mark-xl .mk-eye,.mark-xl .sig{animation:fade .45s ease 1.4s both}
}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes draw{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* studio hero: copy left, the duck mark right */
.hero-studio .h1-en{font-family:var(--sans);font-size:clamp(18px,1.6vw,22px);font-weight:500;color:var(--muted);letter-spacing:-.01em}
.hero-studio .hero-in{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}
.hero-studio .h1-tag{font-size:clamp(60px,8.4vw,120px);letter-spacing:-.04em;white-space:nowrap}
.hero-mark{display:grid;place-items:center;aspect-ratio:1;border-radius:var(--r);background:var(--surface)}
.mark-xl{width:62%;height:auto;color:var(--ink)}

/* ---------- live: local (statement + pipeline) ---------- */
.pipe{display:flex;align-items:center;flex-wrap:wrap;gap:12px 28px;margin-top:clamp(48px,6vw,80px)}
.pipe li{display:flex;flex-direction:column;gap:6px}
.pipe b{font-size:clamp(40px,5.6vw,76px);line-height:1;font-weight:700;letter-spacing:-.03em}
.pipe span{font-size:15px;color:var(--muted)}
.pipe-ar{width:clamp(28px,3vw,40px);height:clamp(28px,3vw,40px);color:var(--line-2);margin-bottom:28px}
.aside{display:flex;gap:12px;align-items:flex-start;margin-top:clamp(48px,6vw,72px);padding-top:24px;border-top:1px solid var(--line);max-width:44em;font-size:16px;color:var(--muted)}
.aside .ic{margin-top:3px;width:20px;height:20px;color:var(--ink-2)}
.aside b{color:var(--ink);font-weight:600}

/* ---------- live: performance (one big number, two quiet ones) ---------- */
.perf{display:grid;grid-template-columns:1.35fr 1fr;gap:20px;margin-top:clamp(48px,6vw,80px)}
.stat .pre{font-size:15px;font-weight:500;color:var(--muted)}
.stat .num{font-size:clamp(64px,7.4vw,104px);font-weight:650;letter-spacing:-.05em;line-height:1;margin-top:8px;font-variant-numeric:tabular-nums}
.stat .num small{font-size:.34em;letter-spacing:-.01em;margin-left:.12em;font-weight:600}
.stat .d{margin-top:12px;font-size:16px;color:var(--muted)}
.stat-hero{background:var(--raise);border-radius:var(--r);padding:clamp(28px,4vw,52px);display:flex;flex-direction:column;justify-content:flex-end;min-height:360px;box-shadow:var(--shade)}
.stat-hero .num{font-size:clamp(110px,15vw,210px);letter-spacing:-.06em}
.perf-side{display:grid;grid-template-rows:1fr 1fr;gap:20px}
.perf-side .stat{padding:28px 4px 0;border-top:1px solid var(--line-2)}

/* ---------- live: green screen (sticky heading + list) ---------- */
.split-aside{display:grid;grid-template-columns:5fr 6fr;gap:clamp(40px,7vw,120px);align-items:start}
.aside-h{position:sticky;top:calc(var(--nav-h) + 48px)}
.lst .li{padding:32px 0;border-top:1px solid var(--line)}
.lst .li:first-child{padding-top:0;border-top:0}
.lst h3{font-size:clamp(24px,2.4vw,32px);font-weight:650;letter-spacing:-.015em;line-height:1.2}
.lst p{margin-top:10px;color:var(--muted);max-width:30em}

/* ---------- live: ×66 ledger ---------- */
.count-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(40px,6vw,96px);align-items:center}
.ledger{background:var(--raise);border-radius:var(--r);padding:clamp(24px,3.4vw,44px);box-shadow:var(--shade);display:grid;grid-template-columns:auto 1fr;column-gap:24px}
.ledger-k{display:grid;grid-template-rows:auto auto;row-gap:18px;align-content:start;padding-top:10px;font-size:14px;color:var(--muted)}
.ledger-k span:first-child{height:clamp(34px,4.2vw,56px);display:flex;align-items:center}
.ledger ol{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.ledger li{display:grid;grid-template-rows:auto auto;row-gap:18px;padding-top:10px}
.combo{font-size:clamp(34px,4.2vw,56px);line-height:1;font-weight:650;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.inc{font-size:20px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums}
.ledger-sum{grid-column:1/-1;margin-top:28px;padding-top:24px;border-top:1px solid var(--line);font-size:clamp(20px,2vw,26px);font-weight:650;display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.ledger-sum .sum-n{font-variant-numeric:tabular-nums;color:var(--accent);display:inline-block;min-width:1.3em;text-align:center}
.ledger-sum small{font-size:13px;font-weight:400;color:var(--muted)}
@media (prefers-reduced-motion:no-preference){
  .js .ledger li{opacity:0;transform:translateY(10px);transition:opacity .6s var(--ease),transform .6s var(--ease);transition-delay:calc(var(--i) * 160ms + 150ms)}
  .js .ledger.in li{opacity:1;transform:none}
}

/* ---------- live: rules ---------- */
.rules-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(32px,5vw,72px);margin-top:clamp(48px,6vw,80px);align-items:start}
.ex{width:100%;border-collapse:collapse;font-size:16px;background:var(--raise);border-radius:var(--r);overflow:hidden;box-shadow:var(--shade)}
.ex caption{caption-side:bottom;text-align:left;padding-top:12px;font-size:13px;color:var(--muted)}
.ex th,.ex td{text-align:left;padding:16px 20px;vertical-align:top}
.ex thead th{font-size:13px;font-weight:500;color:var(--muted);padding-top:20px;padding-bottom:10px}
.ex tbody tr{border-top:1px solid var(--line)}
.ex tbody th{font-weight:600}
.ex td{color:var(--ink-2)}
.rf-list{display:grid;grid-template-columns:1fr 1fr;gap:32px 28px}
.rf h3{font-size:19px;font-weight:600;letter-spacing:-.005em;line-height:1.3}
.rf p{margin-top:8px;font-size:15px;color:var(--muted);line-height:1.6}
.wip{margin-top:clamp(48px,6vw,72px);display:grid;grid-template-columns:200px 1fr;gap:28px;padding:28px 0 0;border-top:1px solid var(--line)}
.wip-h{font-size:15px;font-weight:600;color:var(--muted)}
.wip-in{display:grid;grid-template-columns:1fr 1fr;gap:28px}

/* ---------- live: plugins (two-cell bento) ---------- */
.plugs{display:grid;grid-template-columns:1.1fr 1fr;gap:20px;margin-top:clamp(48px,6vw,80px)}
.plug{background:var(--raise);border-radius:var(--r);padding:clamp(30px,4vw,48px);display:flex;flex-direction:column;min-height:440px;box-shadow:var(--shade)}
.plug h3{font-size:clamp(30px,3.4vw,44px);font-weight:700;letter-spacing:-.025em;line-height:1.1}
.plug p{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.6;max-width:28em}
.plug-g{background:var(--chroma);color:var(--on-chroma);box-shadow:none}
.plug-g p{color:var(--on-chroma);opacity:.86}
.plug-vis{margin-top:auto;padding-top:40px;display:flex;align-items:flex-end;gap:10px}
.tier{flex:1;border-radius:14px;padding:16px 14px;display:flex;flex-direction:column;justify-content:flex-end}
.tier b{display:block;font-size:20px;font-weight:650}
.tier span{display:block;margin-top:2px;font-size:13px}
.tier.t1{height:92px;background:rgba(255,255,255,.4)}
.tier.t2{height:132px;background:rgba(255,255,255,.72)}
.tier.t3{height:176px;background:var(--on-chroma);color:#fff}
.lockvis{align-items:center;gap:22px}
.lockvis .ic{width:76px;height:76px;color:var(--ink)}
.lockvis .n{font-size:76px;font-weight:650;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.lockvis .ops{display:grid;grid-template-columns:auto auto;gap:4px 14px;font-size:14px;color:var(--muted);white-space:nowrap}
.lockvis .ops b{font-weight:500;color:var(--ink);font-variant-numeric:tabular-nums}
.link-line{margin-top:28px;font-size:17px;color:var(--muted)}
.link-line b{color:var(--ink)}

/* ---------- live: five steps (one row) ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:28px;margin-top:clamp(48px,6vw,80px);padding-top:28px;border-top:1px solid var(--line)}
.step h3{font-size:clamp(22px,2vw,26px);font-weight:650;letter-spacing:-.015em}
.step p{margin-top:10px;font-size:15px;line-height:1.6;color:var(--muted)}

/* ---------- live: specs (three grouped clusters) ---------- */
.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(28px,4vw,56px);margin-top:clamp(40px,5vw,64px);align-items:start}
.sg h3{font-size:15px;font-weight:600;color:var(--muted);padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--line-2)}
.spec{padding:16px 0}
.spec dt{font-size:14px;color:var(--muted)}
.spec dd{margin-top:4px}
.spec dd li{font-size:16px;line-height:1.55}
.spec dd li+li{margin-top:2px}
.spec .status{font-size:13px;margin-left:8px}

/* ---------- live: faq (heading + accordion) ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 7fr;gap:clamp(32px,6vw,96px);align-items:start}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:24px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:clamp(18px,1.6vw,20px);font-weight:600;letter-spacing:-.005em}
.faq summary::-webkit-details-marker{display:none}
.faq-ic{width:20px;height:20px;color:var(--muted);transition:transform .3s var(--ease)}
.faq details[open] .faq-ic{transform:rotate(180deg)}
.faq details p{padding:0 44px 26px 0;font-size:16px;line-height:1.7;color:var(--ink-2)}

/* ---------- live: closing CTA (the one centred block) ---------- */
.end{text-align:center;display:flex;flex-direction:column;align-items:center}
.end .copy{margin-left:auto;margin-right:auto}
.end .ctas{justify-content:center}
.appicon{width:112px;height:112px;margin-bottom:28px}

/* ---------- studio ---------- */
.prod{display:grid;gap:clamp(32px,4vw,56px)}
.prod-stage{aspect-ratio:16/7}
.prod-txt{display:grid;grid-template-columns:1fr 1fr;gap:12px clamp(32px,5vw,80px);align-items:end}
.prod-txt .h-xl{grid-column:1}
.prod-tag{grid-column:1;font-size:clamp(20px,2vw,26px);font-weight:600;color:var(--ink-2);letter-spacing:-.01em}
.prod-txt .copy{grid-column:2;grid-row:1/span 2;margin:0;align-self:end}
.prod-txt .ctas{grid-column:2;margin-top:8px}
.duo{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(40px,7vw,120px);align-items:start}
.duo-a{padding:28px;border-radius:var(--r);background:var(--surface)}
.duo-a p{margin-top:8px;color:var(--muted)}
.clist{margin-top:36px;max-width:440px}
.clist li{display:flex;justify-content:space-between;gap:16px;padding:16px 0;border-top:1px solid var(--line);font-size:17px}
.clist b{font-weight:600}

/* ---------- footer ---------- */
.ft{border-top:1px solid var(--line);background:var(--bg);color:var(--muted);font-size:13px;line-height:1.6;padding:56px var(--gutter) 32px}
.ft-in{max-width:1120px;margin:0 auto}
.ft-top{display:grid;grid-template-columns:1fr 2fr;gap:40px}
.ft-mark{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:15px}
.ft-mark svg{width:24px;height:24px}
.ft-brand p{margin-top:12px;font-size:14px;color:var(--ink-2)}
.ft-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:24px}
.ft-cols h4{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:12px}
.ft-cols li{margin-bottom:8px}
.ft a{color:var(--ink-2)}
.ft a:hover{color:var(--ink)}
.ft-notes{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);font-size:12px}
.ft-notes p+p{margin-top:6px}
.ft-bot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;margin-top:20px;font-size:12px}
.ft-lang a+a{margin-left:18px}
.ft-lang a[aria-current]{color:var(--muted);pointer-events:none}

/* ---------- order ---------- */
.co{padding:clamp(48px,7vw,96px) var(--gutter) clamp(80px,9vw,128px)}
.co-in{max-width:1120px;margin:0 auto}
.co-head{max-width:640px}
.co-head p{margin-top:14px;font-size:19px;color:var(--muted);line-height:1.5}
.co-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:clamp(32px,6vw,96px);align-items:start;margin-top:clamp(40px,5vw,64px)}
.notice{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border-radius:var(--r-in);padding:16px 18px;font-size:14px;line-height:1.6;color:var(--ink-2)}
.notice .ic{margin-top:2px;width:18px;height:18px;color:var(--ink-2)}
.co-sec{border:0;margin:0;padding:0;margin-top:56px;min-width:0}
.co-sec legend{padding:0;float:left;width:100%}
.co-sec legend+*{clear:both}
.co-sec h2{font-size:clamp(22px,2.4vw,28px);font-weight:650;letter-spacing:-.015em;line-height:1.25;margin-bottom:20px}
.opt{display:block;position:relative;cursor:pointer}
.opt+.opt{margin-top:12px}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt-box{display:flex;align-items:center;justify-content:space-between;gap:16px;border:1px solid var(--line-2);border-radius:var(--r-in);padding:18px;background:var(--field);transition:border-color .2s,box-shadow .2s}
.opt input:checked+.opt-box{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.opt input:focus-visible+.opt-box{outline:2px solid var(--accent);outline-offset:3px}
.opt-box b{display:block;font-size:17px;font-weight:600}
.opt-box small{display:block;margin-top:3px;font-size:14px;color:var(--muted)}
.opt-box .r{font-size:14px;color:var(--muted);text-align:right;white-space:nowrap}
.pm{display:flex;align-items:center;gap:14px}
.pm-ic{width:32px;height:32px;border-radius:8px;display:grid;place-items:center;color:#fff;font-size:15px;font-weight:600;flex:none}
.pm-wx{background:#07a150}.pm-ali{background:#1666dd}
.fld{margin-bottom:20px}
.fld>label,.fld>.lbl{display:block;margin-bottom:8px;font-size:14px;font-weight:500;color:var(--ink-2)}
.fld input,.fld textarea{width:100%;border:1px solid var(--line-2);border-radius:var(--r-in);background:var(--field);padding:13px 14px;font-size:17px;line-height:1.35;outline:0;transition:border-color .15s,box-shadow .15s}
.fld input::placeholder,.fld textarea::placeholder{color:var(--muted);opacity:1}
.fld textarea{resize:vertical;min-height:110px}
.fld input:focus,.fld textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 24%,transparent)}
.fld.invalid input,.fld.invalid textarea{border-color:var(--err);background:var(--err-bg)}
.fld .err,.agree .err{display:block;font-style:normal;font-size:13px;color:var(--err);margin-top:6px}
.fld .err:empty,.agree .err:empty{display:none}
.hint{font-size:13px;color:var(--muted);margin-top:8px}
.seg{display:flex;background:var(--surface);border-radius:999px;padding:4px}
.seg label{flex:1;position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0}
.seg span{display:block;text-align:center;padding:9px 6px;border-radius:999px;font-size:15px;color:var(--ink-2)}
.seg input:checked+span{background:var(--raise);color:var(--ink);font-weight:600;box-shadow:var(--shade)}
.seg input:focus-visible+span{outline:2px solid var(--accent)}
.qty{display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:999px;padding:5px;background:var(--field)}
.qty .qc{display:flex;align-items:center;gap:4px}
.qty button{width:38px;height:38px;border-radius:999px;border:0;background:var(--surface);font-size:20px;line-height:1;cursor:pointer;color:var(--ink)}
.qty button:hover{background:var(--line)}
.qty button:active{transform:scale(.95)}
.fld .qty input{width:56px;text-align:center;border:0;padding:0;font-size:17px;background:none;box-shadow:none;-moz-appearance:textfield;appearance:textfield;font-variant-numeric:tabular-nums}
.qty input::-webkit-inner-spin-button,.qty input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.via{margin-top:14px;font-size:13px;color:var(--muted)}
.agree{display:flex;gap:12px;align-items:flex-start;margin-top:40px;font-size:15px;color:var(--ink-2);flex-wrap:wrap;cursor:pointer}
.agree input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--ink);flex:none}
.agree span{flex:1}
.agree .err{flex-basis:100%;padding-left:30px;margin-top:0}
.co-submit{margin-top:28px}
.sum{position:sticky;top:calc(var(--nav-h) + 24px);background:var(--surface);border-radius:var(--r);padding:28px}
.sum-hd{display:flex;align-items:center;gap:14px;padding-bottom:20px;border-bottom:1px solid var(--line-2)}
.sum-hd img{width:56px;height:56px}
.sum-hd b{display:block;font-size:17px}
.sum-hd small{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.sum dl>div{display:flex;justify-content:space-between;gap:12px;padding:12px 0;font-size:15px}
.sum dl>div+div{border-top:1px solid var(--line)}
.sum dt{color:var(--muted)}
.sum dd{text-align:right}
.sum .total{padding-top:18px;font-size:17px;font-weight:650}
.sum .total dt{color:var(--ink)}
.sum-note{margin-top:8px;font-size:13px;color:var(--muted)}
.res{max-width:760px}
.res:focus{outline:0}
.res h2{font-size:clamp(28px,3.4vw,40px);font-weight:650;letter-spacing:-.02em;line-height:1.15}
.res .pending{margin-top:20px}
.res-grid{display:grid;grid-template-columns:200px 1fr;gap:32px;margin-top:32px;align-items:start}
.qr-ph{aspect-ratio:1;border:1px dashed var(--line-2);border-radius:var(--r-in);display:grid;place-content:center;text-align:center;padding:16px;font-size:13px;color:var(--muted);gap:6px}
.qr-ph .x{font-size:28px;color:var(--line-2);line-height:1}
.res p{font-size:17px;color:var(--ink-2);line-height:1.6}
.res h3{font-size:17px;margin-top:20px}
.order-text{margin:20px 0 0;background:var(--surface);border-radius:var(--r-in);padding:16px 18px;font-family:inherit;font-size:14px;line-height:1.75;white-space:pre-wrap;word-break:break-word}
.res-actions{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;margin-top:24px}
.linkbtn{border:0;background:none;color:var(--accent);font-size:16px;cursor:pointer;padding:0}
.linkbtn:hover{text-decoration:underline}
.contact-list li{display:flex;gap:12px;padding:6px 0;font-size:14px}
.contact-list b{min-width:3em;font-weight:600}

/* ---------- responsive (explicit collapse per section) ---------- */
@media (max-width:1068px){
  .steps{grid-template-columns:repeat(3,1fr);row-gap:36px}
  .specs{grid-template-columns:1fr 1fr}
  .rules-grid{grid-template-columns:1fr}
}
@media (max-width:833px){
  .hero-in,.hero-studio .hero-in{grid-template-columns:1fr;gap:44px}
  .hero-studio .hero-mark{max-width:420px;width:100%}
  .perf,.split-aside,.count-grid,.plugs,.faq-grid,.duo,.co-grid,.ft-top{grid-template-columns:1fr}
  .aside-h{position:static}
  .stat-hero{min-height:280px}
  .perf-side{grid-template-rows:none;grid-template-columns:1fr 1fr}
  .plug{min-height:0}
  .wip{grid-template-columns:1fr;gap:16px}
  .prod-txt{grid-template-columns:1fr}
  .prod-txt .copy,.prod-txt .ctas{grid-column:1;grid-row:auto}
  .prod-txt .copy{margin-top:8px}
  .sum{position:static;order:-1}
  .sum-note{display:none}
}
@media (max-width:767px){
  :root{--gutter:20px}
  .h1-tag{font-size:clamp(44px,12.4vw,64px)}
  .hero-studio .h1-tag{font-size:clamp(60px,18vw,88px)}
  .pipe{flex-direction:column;align-items:flex-start;gap:6px}
  .pipe-ar{transform:rotate(90deg);margin:4px 0 4px 6px;width:24px;height:24px}
  .perf-side{grid-template-columns:1fr}
  .rf-list,.wip-in{grid-template-columns:1fr;gap:24px}
  .ex th,.ex td{padding:13px 14px;font-size:15px}
  .ledger{column-gap:14px}
  .ledger-k{font-size:13px}
  .combo{font-size:30px}
  .inc{font-size:17px}
  .ledger-k span:first-child{height:30px}
  .steps,.specs{grid-template-columns:1fr;gap:24px}
  .specs{gap:36px}
  .lockvis{gap:14px;flex-wrap:wrap}
  .lockvis .ic{width:52px;height:52px}
  .lockvis .n{font-size:56px}
  .tier{padding:12px 10px}.tier b{font-size:17px}
  .prod-stage{aspect-ratio:4/3}
  .res-grid{grid-template-columns:1fr}
  .res-grid .qr-ph{max-width:200px}
  .ft-bot{flex-direction:column}
  .faq details p{padding-right:0}
}
@media (max-width:640px){.ft-cols{grid-template-columns:1fr 1fr}}
@media (prefers-reduced-transparency:reduce){.nav{background:var(--bg);-webkit-backdrop-filter:none;backdrop-filter:none}}