:root{
  --bg:#f6f6f2; --surface:#ffffff; --sunk:#ecece6; --wash:#efefe9;
  --ink:#0f100e; --ink-2:#40443f; --muted:#72766f; --faint:#a4a79f;
  --rule:#deded7; --rule-2:#c9cac2; --grid:#e4e4dd;
  --accent:#1f5fcc; --accent-ink:#1a4fa8;
  --demo:#2a78d6; --self:#eb6834; --guide:#1baf7a; --body:#4a3aa7;
  --s2:#5a5f9e;
  --screen:#151715; --screen-2:#22251f; --screen-ink:#dcdfd9; --screen-muted:#8f948d;
  --note-bg:#fff4cf; --note-ink:#5b4500; --note-rule:#e3c457;
  --shadow:0 1px 2px rgba(15,16,14,.05),0 12px 32px -16px rgba(15,16,14,.18);
  --serif:"Newsreader","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:"IBM Plex Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --font-display:var(--sans); --font-body:var(--sans); --font-mono:var(--mono);
  --text:740px; --wide:740px; --header-h:52px; --gutter:20px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0d0e0d; --surface:#151715; --sunk:#1c1e1b; --wash:#181a17;
    --ink:#ecede8; --ink-2:#b9bdb5; --muted:#878b83; --faint:#5d6159;
    --rule:#262924; --rule-2:#363a34; --grid:#20231f;
    --accent:#76a3f2; --accent-ink:#93b7f6;
    --demo:#3987e5; --self:#d95926; --guide:#199e70; --body:#9085e9;
    --s2:#9a9fe0;
    --screen:#080908; --screen-2:#191c18; --screen-ink:#dcdfd9; --screen-muted:#8f948d;
    --note-bg:#2a2410; --note-ink:#efd88d; --note-rule:#6b5717;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 14px 36px -16px rgba(0,0,0,.7);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0d0e0d; --surface:#151715; --sunk:#1c1e1b; --wash:#181a17;
  --ink:#ecede8; --ink-2:#b9bdb5; --muted:#878b83; --faint:#5d6159;
  --rule:#262924; --rule-2:#363a34; --grid:#20231f;
  --accent:#76a3f2; --accent-ink:#93b7f6;
  --demo:#3987e5; --self:#d95926; --guide:#199e70; --body:#9085e9;
  --s2:#9a9fe0;
  --screen:#080908; --screen-2:#191c18; --screen-ink:#dcdfd9; --screen-muted:#8f948d;
  --note-bg:#2a2410; --note-ink:#efd88d; --note-rule:#6b5717;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 14px 36px -16px rgba(0,0,0,.7);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 32px)}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.72;margin:0;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"kern"}
::selection{background:color-mix(in srgb,var(--demo) 26%,transparent)}
a{color:inherit;text-decoration:underline;text-decoration-color:var(--rule-2);text-decoration-thickness:1px;text-underline-offset:3px;transition:text-decoration-color .15s}
a:hover{text-decoration-color:var(--ink)}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}
button{font:inherit;color:inherit}

.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:saturate(1.4) blur(16px);backdrop-filter:saturate(1.4) blur(16px);border-bottom:1px solid transparent;transition:border-color .2s}
.site.scrolled{border-bottom-color:var(--rule)}
.site-in{margin:0 auto;padding-inline:24px;height:var(--header-h);display:flex;align-items:center;gap:14px}
.brand{font:500 13.5px var(--sans);color:var(--ink);display:flex;align-items:center;gap:10px;text-decoration:none;white-space:nowrap}
.here{display:flex;align-items:center;gap:8px;min-width:0;font:400 13px var(--sans);color:var(--ink-2);background:none;border:0;padding:6px 8px;border-radius:6px;cursor:pointer}
.here .sep{color:var(--rule-2)}
.here .cur{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.here svg{flex:none;transition:transform .2s}
.here[aria-expanded="true"] svg{transform:rotate(180deg)}
.here:hover{background:var(--sunk)}
.site-actions{margin-left:auto;display:flex;gap:6px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:6px;font:500 11.5px var(--mono);letter-spacing:.04em;color:var(--ink-2);background:transparent;border:1px solid var(--rule-2);border-radius:999px;height:28px;padding:0 11px;cursor:pointer;white-space:nowrap;transition:border-color .15s,color .15s,background .15s}
.btn:hover{border-color:var(--ink-2);color:var(--ink)}
.btn.icon{width:28px;padding:0;justify-content:center}
.btn[aria-pressed="true"].notes{background:var(--note-bg);color:var(--note-ink);border-color:var(--note-rule)}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.progress i{display:block;height:100%;width:100%;transform-origin:0 50%;transform:scaleX(0);background:var(--ink)}
@media (max-width:520px){
  :root:root{--header-h:88px}
  .site-in{height:var(--header-h);display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:44px 44px;gap:0 8px;padding-inline:16px}
  .site-identity{grid-column:1;grid-row:1;min-width:0;gap:10px}
  .site-identity .brand{min-width:0;overflow:hidden}
  .site-identity .brand .logo{height:18px;width:auto}
  .brand .bn{display:none}
  .site-actions{grid-column:2;grid-row:1;margin-left:0}
  .theme{gap:0;padding:2px}
  .theme button{min-height:30px;padding-inline:9px;font-size:12px}
  .here{grid-column:1 / -1;grid-row:2;justify-self:start;padding-inline:0;max-width:100%;}
  .here .cur{max-width:calc(100vw - 32px - 24px)}
  .btn.notes .lbl{display:none}
}

.sheet{position:fixed;left:0;right:0;top:calc(env(safe-area-inset-top,0px) + var(--header-h));z-index:39;background:var(--bg);border-bottom:1px solid var(--rule);box-shadow:var(--shadow);max-height:calc(100vh - var(--header-h) - 40px);overflow:auto;padding:14px 24px 24px}
.sheet .toc{max-width:560px;margin:0 auto}

.page{display:grid;padding-block:0 120px;
  grid-template-columns:[full-start] minmax(var(--gutter),1fr) [wide-start] minmax(0,calc((var(--wide) - var(--text))/2)) [text-start] min(var(--text),100% - 2*var(--gutter)) [text-end] minmax(0,calc((var(--wide) - var(--text))/2)) [wide-end] minmax(var(--gutter),1fr) [full-end]}
.page>*{grid-column:text;min-width:0}
.page>.wide{grid-column:wide}
.page>.full{grid-column:full}
@media (max-width:520px){:root{--gutter:16px}}

.toc-rail{display:none}
@media (min-width:1240px){
  :root{--rail:216px}
  .page{padding-left:var(--rail)}
  .toc-rail{display:block;position:fixed;z-index:30;top:calc(var(--header-h) + 40px);left:28px;width:188px;max-height:calc(100vh - var(--header-h) - 72px);overflow:auto;scrollbar-width:none;opacity:0;transform:translateX(-6px);transition:opacity .35s,transform .35s;pointer-events:none}
  .toc-rail::-webkit-scrollbar{display:none}
  .toc-rail{opacity:1;transform:none;pointer-events:auto}
  .here{display:none}
}
.toc-h{font:500 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;display:flex;justify-content:space-between;align-items:baseline}
.toc-h .pct{letter-spacing:0;font-variant-numeric:tabular-nums}
.toc ol{list-style:none;margin:0;padding:0}
.toc>ol{border-left:1px solid var(--rule)}
.toc a{display:flex;gap:10px;align-items:baseline;padding:4px 6px 4px 13px;margin-left:-1px;border-left:1px solid transparent;color:var(--muted);text-decoration:none;font:400 13px/1.4 var(--sans);transition:color .15s,border-color .15s}
.toc a .n{font:400 10.5px var(--mono);color:var(--faint);min-width:16px;transition:color .15s}
.toc a:hover{color:var(--ink)}
.toc a.past{color:var(--ink-2)}
.toc a.on{color:var(--ink);border-left-color:var(--ink)}.toc a.on .n{color:var(--ink)}
.toc ol ol a{padding-left:39px;font-size:12.5px;gap:8px;align-items:center}
.toc ol ol a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c);flex:none;opacity:.45;transition:opacity .15s}
.toc ol ol a.on{border-left-color:var(--c)}.toc ol ol a.on::before,.toc ol ol a.past::before{opacity:1}
.toc .grp{font:500 9.5px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--faint);padding:16px 0 4px 14px}
.rail-foot{margin-top:20px;padding-top:12px;border-top:1px solid var(--rule);display:flex;flex-direction:column;gap:4px;font:400 12px var(--sans)}
.rail-foot a{color:var(--muted);text-decoration:none;padding:2px 0}
.rail-foot a:hover{color:var(--ink)}

.hero{padding-block:clamp(56px,9vw,120px) 0;display:grid;grid-template-columns:minmax(0,1fr);gap:0}
.epigraph{margin:0 0 34px;max-width:34em}
.epigraph blockquote{margin:0;font:italic 400 clamp(17px,1.7vw,19.5px)/1.45 var(--serif);color:var(--ink-2);text-wrap:balance}
.epigraph .by{margin:8px 0 0;font:400 12.5px/1.45 var(--sans);color:var(--muted)}
.epigraph .by::before{content:"— "}
h1{font-family:var(--serif);font-weight:350;font-size:clamp(50px,8.4vw,112px);line-height:.96;letter-spacing:-.03em;margin:0;text-wrap:balance}
h1 em{font-style:italic}
.eyebrow{display:flex;align-items:center;gap:12px;margin:0 0 22px;font:600 11.5px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--ink)}
.eyebrow::before{content:"";flex:0 0 28px;height:3px;background:var(--ln-sec-bar,var(--ink))}
.hero-row{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;margin-top:40px;padding-top:22px;border-top:1px solid var(--ink)}
.standfirst{font:400 clamp(19px,1.9vw,22px)/1.5 var(--sans);color:var(--ink-2);margin:0;max-width:40em;text-wrap:pretty;letter-spacing:-.005em}
.meta{display:grid;grid-auto-flow:column;grid-template-rows:auto auto;justify-content:start;gap:2px 40px;margin:0;font:400 13px/1.45 var(--sans);color:var(--ink-2)}
.meta dt{font:500 10.5px/1.9 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.meta dd{margin:0}
@media (max-width:520px){.hero-row{gap:24px}.meta{grid-auto-flow:row;grid-template-rows:none;grid-template-columns:auto 1fr;gap:6px 16px}}

.keys{margin:28px 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--rule)}
.key{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px 0;color:inherit;text-decoration:none;border-right:1px solid var(--rule);margin-right:22px}
.key:last-child{border-right:0;margin-right:0}
.key .v{font:350 clamp(36px,4vw,50px)/1 var(--serif);letter-spacing:-.03em;font-variant-numeric:lining-nums tabular-nums;display:flex;align-items:baseline;gap:8px}
.key .v small{font:400 13px var(--sans);letter-spacing:0;color:var(--muted)}
.key .d{font:400 13.5px/1.5 var(--sans);color:var(--ink-2)}
.key .go{margin-top:auto;font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:7px;transition:color .15s}
.key .go i{width:6px;height:6px;border-radius:50%}
.key:hover .go{color:var(--ink)}
@media (max-width:900px){.keys{grid-template-columns:repeat(2,minmax(0,1fr))}.key:nth-child(2){border-right:0;margin-right:0}.key:nth-child(n+3){border-top:1px solid var(--rule)}}
@media (max-width:440px){.key{padding-right:14px;margin-right:14px}.key .d{font-size:12.5px}}

h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,3.6vw,42px);line-height:1.1;letter-spacing:-.02em;margin:120px 0 26px;text-wrap:balance}
h2 .sec{display:flex;align-items:center;gap:10px;font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
h2 .sec b{font-weight:500;color:var(--ink)}
h2 .sec b{font-variant-numeric:tabular-nums}
h2 .sec b::before{content:"§ ";color:var(--muted);font-weight:400}
h2 .sec::after{content:"";flex:0 0 18px;height:1px;background:var(--rule-2)}
h3{font-family:var(--sans);font-weight:600;font-size:19px;line-height:1.35;letter-spacing:-.01em;margin:48px 0 12px;text-wrap:balance}
p{margin:0 0 22px}
section>p,section>ul{color:var(--ink-2)}
section>p b,section>p i{color:var(--ink)}
.lead-in{font-weight:600;color:var(--ink)}
.subsec h3 .sn{font:500 12px var(--mono);letter-spacing:.1em;color:var(--muted);margin-right:12px;vertical-align:2px;font-variant-numeric:tabular-nums}
.cite{font:400 .9em var(--sans);color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.cite a{color:var(--accent-ink);font-weight:500;text-decoration:none;padding:0 1px;border-radius:3px;cursor:pointer}
.cite a:hover,.cite a:focus-visible{background:color-mix(in srgb,var(--accent) 14%,transparent);text-decoration:underline;text-underline-offset:2px}
.cite-flash{animation:citeflash 1.8s ease-out}
@keyframes citeflash{0%,30%{background:color-mix(in srgb,var(--accent) 18%,transparent)}100%{background:transparent}}

.part-open{margin:160px 0 0;padding-top:20px;border-top:1px solid var(--ink);display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:16px 48px;align-items:end}
.part-open .pn{grid-column:1/-1;font:500 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.part-open .pt{font:350 clamp(42px,5.8vw,76px)/1 var(--serif);letter-spacing:-.03em;margin:0;text-wrap:balance}
.part-open .pd{font:400 16px/1.55 var(--sans);color:var(--ink-2);margin:0;max-width:44ch}
.part-open .bar4{grid-column:1/-1;display:flex;gap:4px;width:96px;height:3px;margin-top:4px}.part-open .bar4 i{flex:1;border-radius:2px}
.part-open + section h2{margin-top:72px}
@media (max-width:720px){.part-open{grid-template-columns:minmax(0,1fr)}}

.fig{margin:48px 0 56px}
.fig-body{min-width:0;position:relative}
figcaption{max-width:var(--text);margin:18px 0 0;font:400 13.5px/1.6 var(--sans);color:var(--muted)}
figcaption b{color:var(--ink);font-weight:500}
figcaption .fn{font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin-right:10px}
.chart{width:100%;min-height:200px;position:relative}
.chart svg,.diagram svg{display:block;width:100%;height:auto;overflow:visible;font-variant-numeric:tabular-nums}
.chart text,.diagram text,.fig svg text{font-family:var(--sans)}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,360px),1fr));gap:36px 48px;align-items:start}
.grid2>*{min-width:0}
.fig-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px 24px;padding-top:14px;border-top:1px solid var(--ink);margin-bottom:22px}
.fig-head>div:first-child{min-width:0;flex:1 1 320px}
.panel-title{font:600 15px/1.35 var(--sans);margin:0 0 4px;color:var(--ink);letter-spacing:-.005em}
.panel-sub{font:400 13px/1.5 var(--sans);color:var(--muted);margin:0}
.legend{display:flex;flex-wrap:wrap;gap:6px 18px;font:400 12.5px var(--sans);color:var(--ink-2);margin:0 0 12px}
.legend i{display:inline-block;width:16px;height:2px;border-radius:1px;vertical-align:middle;margin-right:7px}
.legend i.dash{background:repeating-linear-gradient(90deg,currentColor 0 4px,transparent 4px 7px)!important}
.legend i.sq{width:9px;height:9px;border-radius:2px}
.legend i.dot{width:8px;height:8px;border-radius:50%}
.axis-t{font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;fill:var(--muted)}
.seg{display:inline-flex;padding:2px;border-radius:999px;background:var(--sunk);gap:2px;flex:none}
.seg button{border:0;background:transparent;font:500 11.5px var(--sans);color:var(--muted);padding:5px 12px;border-radius:999px;cursor:pointer;white-space:nowrap;transition:background .15s,color .15s}
.seg button:hover{color:var(--ink)}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.data-tgl{margin-top:14px;font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:none;border:0;padding:4px 0;cursor:pointer;display:inline-flex;gap:6px;align-items:center}
.data-tgl:hover{color:var(--ink)}
.data-tgl::before{content:"+";font-size:13px;width:10px}
.data-tgl[aria-expanded="true"]::before{content:"−"}
.data-tbl{overflow-x:auto;margin-top:8px}
.data-tbl table{min-width:0;font-size:12.5px}
.data-tbl td,.data-tbl th{padding:6px 10px}

.anim .bar{transform-box:fill-box;transform-origin:50% 100%;transform:scaleY(0);transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.anim .hb{transform-box:fill-box;transform-origin:0 50%;transform:scaleX(0);transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.anim .ln{stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.3s cubic-bezier(.3,.6,.2,1)}
.anim .fade{opacity:0;transition:opacity .6s ease .5s}
.anim .rad{transform:scale(.2);opacity:0;transition:transform .9s cubic-bezier(.2,.7,.2,1),opacity .5s}
.anim.in .bar,.anim.in .hb{transform:none}.anim.in .ln{stroke-dashoffset:0}.anim.in .fade{opacity:1}.anim.in .rad{transform:none;opacity:1}
.xh{pointer-events:none;opacity:0;transition:opacity .12s}.xh.on{opacity:1}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

.c-demo{background:var(--demo)} .c-self{background:var(--self)} .c-guide{background:var(--guide)} .c-body{background:var(--body)}
.fam{display:inline-flex;align-items:center;gap:7px;font:500 13px var(--sans);color:var(--ink-2)}
.fam i{width:8px;height:8px;border-radius:50%;display:inline-block;flex:none}
.cap{margin-top:112px;padding-top:18px;border-top:1px solid var(--fc,var(--ink));position:relative}
.cap::before{content:"";position:absolute;left:0;top:-2px;width:64px;height:3px;background:var(--fc)}
.cap .fam{font:500 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--fc);margin-bottom:12px}
.cap .fam i{background:var(--fc)}
.cap h3{margin-top:0;font:400 clamp(28px,3.2vw,36px)/1.1 var(--serif);letter-spacing:-.018em}
.cap h3 .sn{display:block;font:500 11px var(--mono);letter-spacing:.12em;color:var(--muted);margin-bottom:12px;font-variant-numeric:tabular-nums}
.cap h3 .sn::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--fc);margin-right:9px;vertical-align:1px}
.measure{font:400 14.5px/1.65 var(--sans);color:var(--ink-2);margin:26px 0;padding:16px 0 16px 20px;border-left:2px solid var(--fc,var(--ink))}
.measure b{color:var(--ink);font:500 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;display:block;margin-bottom:6px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,170px),1fr));gap:0 28px;border-top:1px solid var(--rule);margin:24px 0 0}
.stat{padding:16px 0 14px}
.stat .v{font:350 40px/1 var(--serif);letter-spacing:-.03em;font-variant-numeric:lining-nums tabular-nums}
.stat .l{font:400 13px/1.5 var(--sans);color:var(--ink-2);margin-top:8px}
.tbl-wrap{overflow-x:auto;margin:0;border-top:1px solid var(--ink)}
table{border-collapse:collapse;width:100%;font:400 14px/1.5 var(--sans);min-width:640px}
th,td{text-align:left;vertical-align:top;padding:12px 14px 12px 0;border-bottom:1px solid var(--rule)}
th{font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding-top:12px}
td.num{font-variant-numeric:tabular-nums;font-family:var(--mono);font-size:13px;white-space:nowrap}
td .fam{margin:0;white-space:nowrap}
.win{color:var(--ink);font-weight:600}
.sub{display:block;color:var(--muted);font-size:12px}
ul.clean{padding-left:0;margin:0 0 22px;list-style:none;display:grid;gap:14px}
ul.clean li{padding-left:22px;position:relative}
ul.clean li::before{content:"";position:absolute;left:2px;top:.66em;width:8px;height:8px;border-radius:50%;background:var(--c,var(--ink-2))}
.pull{margin:48px 0;padding:0;border:0;font:400 clamp(23px,2.6vw,28px)/1.3 var(--serif);letter-spacing:-.012em;color:var(--ink);text-wrap:balance}
.pull::before{content:"";display:block;width:40px;height:1px;background:var(--ink);margin-bottom:20px}
.didnot{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:0 32px;margin:10px 0 28px}
.didnot div{padding:14px 0 14px 26px;border-top:1px solid var(--rule);font:400 14.5px/1.55 var(--sans);color:var(--ink-2);position:relative}
.didnot div::before{content:"✕";position:absolute;left:2px;top:14px;font:500 12px var(--mono);color:var(--muted)}
.didnot b{color:var(--ink);font-weight:600;display:block;margin-bottom:2px}
#refs h2{font-size:clamp(28px,3vw,34px)}
.refs{font:400 13.5px/1.6 var(--sans);color:var(--ink-2);padding-left:30px;margin:0 0 40px}
.refs li{margin-bottom:8px;padding-left:6px;border-radius:4px;transition:background .6s}
.refs li:target,.refs li.hit{background:color-mix(in srgb,var(--accent) 12%,transparent)}
.refs .back{font:500 11px var(--mono);margin-left:6px;text-decoration:none;color:var(--accent-ink);white-space:nowrap}
.refs .back[hidden]{display:none}
.refs li::marker{font:400 11.5px var(--mono);color:var(--muted)}
.refs a{color:var(--accent-ink)}
#cite{font:500 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.bib-wrap{position:relative}
pre.bib{background:var(--wash);border-radius:6px;padding:18px;overflow-x:auto;font:400 12.5px/1.65 var(--mono);color:var(--ink-2);margin:0}
.bib-wrap .btn{position:absolute;top:10px;right:10px;background:var(--bg)}
footer{margin-top:96px;padding-top:20px;border-top:1px solid var(--rule);font:400 11px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.note{display:block;margin:20px 0;padding:12px 16px;background:var(--note-bg);color:var(--note-ink);border-left:2px solid var(--note-rule);font:400 13px/1.65 var(--sans);border-radius:0 4px 4px 0}
.note::before{content:"草稿备注 · ";font-weight:600}
body.hide-notes .note{display:none}
.ph{background:var(--note-bg);color:var(--note-ink);border-radius:3px;padding:0 3px}
body.hide-notes .ph{background:none;color:inherit;padding:0}
.tip{position:fixed;pointer-events:none;z-index:60;background:var(--ink);color:var(--bg);font:400 12px/1.5 var(--sans);padding:8px 11px;border-radius:5px;opacity:0;transition:opacity .12s;max-width:270px;box-shadow:var(--shadow)}
.tip.on{opacity:1}
.tip b{font-weight:600}
.tip .row{display:flex;align-items:center;gap:8px;justify-content:space-between}
.tip .row i{width:7px;height:7px;border-radius:50%;flex:none}
.tip .row span{flex:1}
.tip .row em{font-style:normal;font-variant-numeric:tabular-nums;font-weight:600}
.refpop{position:fixed;z-index:60;max-width:340px;background:var(--surface);color:var(--ink-2);border:1px solid var(--rule-2);border-radius:6px;box-shadow:var(--shadow);padding:10px 12px;font:400 13px/1.5 var(--sans);opacity:0;pointer-events:none;transition:opacity .12s}
.refpop.on{opacity:1}
.refpop b{font:500 10.5px var(--mono);color:var(--muted);display:block;margin-bottom:3px}
@media (max-width:640px){body{font-size:16.5px}h2{margin-top:88px}.cap{margin-top:88px}.part-open{margin-top:112px}.fig{margin:36px 0 44px}.stat .v{font-size:36px}}

.st-anim [data-step]{transition:opacity .45s ease,transform .55s cubic-bezier(.2,.7,.2,1),clip-path .75s cubic-bezier(.3,.6,.2,1),filter .45s}
.st-anim [data-step]:not(.st-on){opacity:0;transform:translateY(8px)}
.replay{display:inline-flex;align-items:center;gap:6px;flex:none;font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:none;border:1px solid var(--rule-2);border-radius:999px;padding:5px 11px 5px 9px;cursor:pointer;transition:color .15s,border-color .15s,opacity .3s}
.replay:hover{color:var(--ink);border-color:var(--ink-2)}
.replay svg{display:block}
figure:not(.st-done) .replay{opacity:.45}
@media (prefers-reduced-motion: reduce){.replay{display:none}}
.duo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 32px}
.duo>div{min-width:0}
@media (max-width:640px){.duo{grid-template-columns:minmax(0,1fr);gap:32px}}

figure[data-fig="figure8"] .chart svg{overflow:visible}
figure[data-fig="figure8"] .fama8-grid{gap:36px 40px}
@media (min-width:761px){figure[data-fig="figure8"] .fama8-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
figure[data-fig="figure8"] .fama-ps{min-height:4.5em}
figure[data-fig="figure8"] .fama8-key{margin:4px 0 10px;font-size:12px;gap:4px 16px}
.fama8-ring{width:9px!important;height:9px!important;border-radius:50%!important;border:1.75px solid var(--muted);box-sizing:border-box;background:none}
.fama8-fill{background:var(--ink-2)}
@media (max-width:760px){figure[data-fig="figure8"] .fama-ps{min-height:0}}

.fama-pt{font:600 14.5px/1.35 var(--sans);color:var(--ink);margin:0 0 2px}
.fama-ps{font:400 12.5px/1.5 var(--sans);color:var(--muted);margin:0 0 6px}
figure[data-fig="figure9"] .fama-ladders{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 32px}
@media (max-width:640px){figure[data-fig="figure9"] .fama-ladders{grid-template-columns:minmax(0,1fr)}}
figure[data-fig="figure9"] .fama-ps{margin-bottom:14px}
figure[data-fig="figure9"] .chart,figure[data-fig="figure9b"] .chart{min-height:0}
figure[data-fig="figure9b"] .fig-head .legend{flex-basis:100%}
.legend i.fama-iv{width:16px;height:7px;border-radius:4px;background:var(--demo);opacity:.22}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .legend i.fama-iv{opacity:.34}}
:root[data-theme="dark"] .legend i.fama-iv{opacity:.34}
.fama-hit{cursor:default}

.fama-tbl{border-top:1px solid var(--ink)}
.fama-tbl table{min-width:0;width:100%;table-layout:fixed;font:400 14px/1.55 var(--sans)}
.fama-tbl col{width:auto}
.fama-tbl th{padding:14px 18px 12px 0;border-bottom:1px solid var(--rule-2)}
.fama-tbl td{padding:18px 18px 20px 0;color:var(--ink-2);border-bottom:1px solid var(--rule)}
.fama-tbl th:nth-child(1){width:19%}.fama-tbl th:nth-child(2){width:23%}.fama-tbl th:nth-child(3){width:17%}.fama-tbl th:nth-child(4){width:30%}.fama-tbl th:nth-child(5){width:11%}
.fama-tbl th:last-child,.fama-tbl td:last-child{padding-right:0}
.fama-tbl tbody tr{transition:background .15s}
.fama-tbl tbody tr:hover{background:color-mix(in srgb,var(--c) 5%,transparent)}
.fama-fam{display:inline-flex;align-items:baseline;gap:7px;white-space:nowrap;font:500 14.5px/1.35 var(--sans);color:var(--ink)}
.fama-fam i{width:8px;height:8px;border-radius:50%;background:var(--c);flex:none;align-self:center}
.fama-fam b{font:500 11px var(--mono);letter-spacing:.08em;color:var(--ink)}
.fama-fam .fama-sep{color:var(--faint)}
.fama-tbl td.fama-ch{color:var(--ink);font:400 17px/1.3 var(--serif);letter-spacing:-.003em}
.fama-tbl td.fama-p0{font-size:13.5px}
.fama-mode{display:inline-flex;align-items:center;gap:6px;font:500 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);white-space:nowrap}
.fama-mode::before{content:"";width:12px;height:2px;border-radius:1px;background:var(--ink-2)}
.fama-mode.stream::before{background:repeating-linear-gradient(90deg,var(--ink-2) 0 2px,transparent 2px 4px)}
@media (max-width:760px){
  .fama-tbl table,.fama-tbl tbody,.fama-tbl tr,.fama-tbl td{display:block;width:auto!important}
  .fama-tbl thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .fama-tbl tbody tr{padding:18px 0 16px 16px;border-bottom:1px solid var(--rule);position:relative}
  .fama-tbl tbody tr::before{content:"";position:absolute;left:0;top:21px;bottom:18px;width:2px;border-radius:1px;background:var(--c)}
  .fama-tbl tbody tr:hover{background:none}
  .fama-tbl td{border:0;padding:0 0 10px}
  .fama-tbl td::before{content:attr(data-l);display:block;font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
  .fama-tbl td.fama-f::before{display:none}
  .fama-tbl td.fama-f{padding-bottom:12px}
  .fama-tbl .fama-fam{font-size:16px}
  .fama-tbl .fama-fam i{display:none}
  .fama-tbl td:last-child{padding-bottom:0}
}

.eff-co,.eff-an,.eff-rd,.eff-sw{transition:opacity .45s ease}

figure[data-fig="figure12"] .famb-clips{margin-top:28px}
figure[data-fig="figure12"] #famb-retry-wrap,figure[data-fig="figure13"] #famb-corr-wrap{position:relative}

.famb13-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,1fr);gap:0;align-items:stretch}
.famb13-ladder{padding-right:40px;border-right:1px solid var(--rule);display:flex;flex-direction:column}
.famb13-chart{padding-left:40px}
.famb13-chart .panel-sub{margin-bottom:14px}
.famb-steps{list-style:none;margin:6px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 34px;counter-reset:st}
.famb-steps li{position:relative;display:flex;flex-direction:column;min-width:0;cursor:default}
.famb-steps li+li::before{content:"";position:absolute;left:-26px;top:var(--ay,80px);width:18px;height:1px;background:var(--ink-2)}
.famb-steps li+li::after{content:"";position:absolute;left:-13px;top:calc(var(--ay,80px) - 3px);width:6px;height:6px;border-top:1px solid var(--ink-2);border-right:1px solid var(--ink-2);transform:rotate(45deg)}
.famb-steps .k{font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--guide)}
.famb-steps .cond{font:400 12px/1.4 var(--sans);color:var(--muted);margin-top:3px;min-height:1.4em}
.famb-steps .v{font:400 58px/1 var(--serif);letter-spacing:-.025em;font-variant-numeric:lining-nums tabular-nums;color:var(--ink);margin-top:12px}
.famb-steps li[data-i="0"] .v{color:var(--guide)}
.famb-steps .m{position:relative;display:block;height:6px;border-radius:3px;background:var(--sunk);margin:14px 0 12px}
.famb-steps .m .f{position:absolute;left:0;top:0;bottom:0;width:var(--v,0%);border-radius:3px;background:var(--guide);transform-origin:0 50%}
.famb-steps li[data-i="1"] .m .f{opacity:.8}.famb-steps li[data-i="2"] .m .f{opacity:.62}
.famb-steps .m .ci{position:absolute;top:-4px;height:14px;left:var(--lo,0%);width:calc(var(--hi,0%) - var(--lo,0%));border-left:1px solid var(--ink-2);border-right:1px solid var(--ink-2)}
.famb-steps .m .ci::before{content:"";position:absolute;left:0;right:0;top:6.5px;height:1px;background:var(--ink-2)}
.famb-steps .l{font:400 13px/1.5 var(--sans);color:var(--ink-2)}
.famb-steps li:hover .v{color:var(--guide)}
.anim .famb-steps .m .f{transform:scaleX(0);transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.anim .famb-steps li[data-i="1"] .m .f{transition-delay:.12s}.anim .famb-steps li[data-i="2"] .m .f{transition-delay:.24s}
.anim.in .famb-steps .m .f{transform:none}
.famb-lat{margin-top:auto;padding-top:16px;border-top:1px solid var(--rule)}
.famb-lat .row{display:flex;align-items:baseline;gap:16px}
.famb-lat-svg{margin-top:10px}
.famb-lat-svg svg{display:block;width:100%;height:auto;overflow:visible}
.famb13-ladder .famb-steps{margin-bottom:28px}
.famb-lat .v{font:400 40px/1 var(--serif);letter-spacing:-.015em;color:var(--ink);white-space:nowrap;font-variant-numeric:lining-nums tabular-nums}
.famb-lat .l{font:400 13px/1.45 var(--sans);color:var(--ink-2)}
.famb13-clips{margin-top:36px;padding-top:16px;border-top:1px solid var(--rule)}
@media (max-width:860px){
  .famb13-grid{grid-template-columns:minmax(0,1fr)}
  .famb13-ladder{padding-right:0;border-right:0}
  .famb13-chart{padding-left:0;margin-top:32px;padding-top:16px;border-top:1px solid var(--rule)}
}
@media (max-width:560px){
  .famb-steps{grid-template-columns:minmax(0,1fr);gap:0}
  .famb-steps li{display:grid;grid-template-columns:96px minmax(0,1fr);grid-template-areas:"v k" "v cond" "v m" "v l";column-gap:16px;padding:14px 0;border-top:1px solid var(--rule)}
  .famb-steps li:first-child{border-top:0;padding-top:4px}
  .famb-steps .v{grid-area:v;font-size:46px;margin-top:2px}
  .famb-steps .k{grid-area:k}.famb-steps .cond{grid-area:cond}.famb-steps .m{grid-area:m;margin:10px 0 8px}.famb-steps .l{grid-area:l}
  .famb-steps li+li::before,.famb-steps li+li::after{display:none}
  .famb13-ladder .famb-steps{margin-bottom:18px}
}

figure[data-fig="figure14"] .fig-head{margin-bottom:22px}
.famb14-scroll{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;scrollbar-width:thin}
.famb14-in{min-width:740px}
.famb14-clips{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.famb14-clip{transition:opacity .2s}
.famb14-clip .vid .play{display:block}
.famb14-clip .clip-cap{margin-top:9px;text-align:center;font-size:12px;line-height:1.45}
.famb14-clip .clip-cap b{font-size:12.5px}
.famb14-clip .clip-cap .n{font-size:11px}
.famb14.hov .famb14-clip:not(.on){opacity:.5}
.famb14-hint{display:none;margin:-8px 0 12px;font:400 10.5px var(--mono);letter-spacing:.06em;color:var(--muted)}
.famb14.scrolls .famb14-hint{display:block}

.film{aspect-ratio:16/9;border-radius:8px}
.film .film-snd{position:absolute;z-index:4;top:12px;right:12px;display:inline-flex;align-items:center;gap:7px;margin:0;cursor:pointer;
  font:500 10.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--screen-ink);padding:6px 10px 6px 8px;border:0;border-radius:999px;
  background:rgba(10,11,10,.55);box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:background .15s}
.film .film-snd:hover{background:rgba(10,11,10,.75)}
.film .film-snd:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.film .film-ico{width:15px;height:12px;background:currentColor;
  -webkit-mask:var(--film-ico) center/contain no-repeat;mask:var(--film-ico) center/contain no-repeat;
  --film-ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 16'%3E%3Cpath d='M1 5h4l5-4v14l-5-4H1z' fill='black'/%3E%3Cpath d='M14 5l5 6M19 5l-5 6' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E")}
.film .film-snd[aria-pressed="true"] .film-ico{--film-ico:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 16'%3E%3Cpath d='M1 5h4l5-4v14l-5-4H1z' fill='black'/%3E%3Cpath d='M13 4.5a5 5 0 0 1 0 7M15.5 2a8.5 8.5 0 0 1 0 12' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E")}
.film.vid.live .scrub .hit{pointer-events:auto;cursor:pointer}
.film .scrub .hit{position:absolute;left:0;right:0;top:-11px;bottom:-11px}
@container (max-width:420px){.film .film-snd{top:8px;right:8px;padding:5px 8px 5px 7px;font-size:9.5px}}

:root{--tp-paper:#faf5e9;--tp-fold:#eae1ce;--tp-edge:#e1e0d9;--tp-bluewash:#dcebf6;--tp-orangewash:#f6d7b2;--tp-greenwash:#dfede1;--tp-tea:#b76632;--tp-teawash:#edc793;--tp-shadow:#c7c6bf}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--tp-paper:#302e27;--tp-fold:#464135;--tp-edge:#4b4b45;--tp-bluewash:#283a4b;--tp-orangewash:#513e2e;--tp-greenwash:#2e4137;--tp-tea:#e1aa6a;--tp-teawash:#705539;--tp-shadow:#101113}}
:root[data-theme="dark"]{--tp-paper:#302e27;--tp-fold:#464135;--tp-edge:#4b4b45;--tp-bluewash:#283a4b;--tp-orangewash:#513e2e;--tp-greenwash:#2e4137;--tp-tea:#e1aa6a;--tp-teawash:#705539;--tp-shadow:#101113}
#co01-tea-play{--t-bg:var(--bg);--t-ink:var(--ink);--t-muted:var(--muted);--t-paper:var(--tp-paper);--t-fold:var(--tp-fold);--t-edge:var(--tp-edge);--t-blue:var(--demo);--t-bluewash:var(--tp-bluewash);--t-orange:var(--self);--t-orangewash:var(--tp-orangewash);--t-green:var(--guide);--t-greenwash:var(--tp-greenwash);--t-tea:var(--tp-tea);--t-teawash:var(--tp-teawash);--t-shadow:var(--tp-shadow);
  --t-serif:Georgia,"Times New Roman",serif;position:relative;max-width:720px;margin:0 0 30px;color:var(--t-ink);overflow:hidden;padding-bottom:10px}
#co01-tea-play *{box-sizing:border-box}
#co01-tea-play .tea-theatre{position:relative;height:300px}
#co01-tea-play .tea-world{display:block;width:100%;height:100%}
#co01-tea-play .tea-aside{position:absolute;left:0;right:0;bottom:7px;text-align:center;font:italic 14px/1.3 var(--t-serif);color:var(--t-muted);pointer-events:none}
#co01-tea-play button{font:inherit;-webkit-tap-highlight-color:transparent;color:var(--t-ink);cursor:pointer}
#co01-tea-play .tea-interrupt{position:absolute;right:4%;top:13px;border:1px solid var(--t-green);border-radius:46% 48% 43% 45%;padding:13px 22px 12px;background:var(--t-greenwash);transform:rotate(4deg);box-shadow:2px 4px 0 color-mix(in srgb,var(--t-green) 15%,transparent);min-height:54px;line-height:1.2}
#co01-tea-play .tea-interrupt span{display:block;font:italic 17px var(--t-serif)}
#co01-tea-play .tea-interrupt small{display:block;font-size:11px;margin-top:5px;color:var(--t-muted)}
#co01-tea-play .tea-interrupt[hidden]{display:none}
#co01-tea-play .tea-interrupt:hover{transform:rotate(0deg) translateY(-2px)}
#co01-tea-play .tea-drawer{width:min(480px,96%);position:relative;margin:2px auto 0;background:var(--t-paper);box-shadow:0 5px 10px color-mix(in srgb,var(--t-shadow) 16%,transparent)}
#co01-tea-play .tea-seam{position:absolute;height:3px;left:-9px;right:-9px;top:-2px;border-radius:50%;background:var(--t-ink);z-index:2;opacity:.8}
#co01-tea-play .tea-inside{height:18px;overflow:hidden;position:relative;background:repeating-linear-gradient(0deg,transparent 0,transparent 44px,color-mix(in srgb,var(--t-fold) 38%,transparent) 44px,color-mix(in srgb,var(--t-fold) 38%,transparent) 45px)}
#co01-tea-play .tea-scraps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;padding:20px 21px 17px;transform:translateY(-3px)}
#co01-tea-play .tea-scrap{--angle:-5deg;position:relative;display:flex;flex-direction:column;align-items:center;min-width:0;min-height:118px;border:0;border-radius:1px;background:var(--t-bg);box-shadow:1px 3px 0 color-mix(in srgb,var(--t-shadow) 25%,transparent);padding:6px 4px 12px;transform:rotate(var(--angle));transition:transform .25s cubic-bezier(.2,.8,.3,1.2),box-shadow .2s;user-select:none}
#co01-tea-play .tea-scrap:before{content:"";position:absolute;top:-6px;width:28px;height:12px;background:color-mix(in srgb,var(--t-orangewash) 62%,transparent);transform:rotate(7deg)}
#co01-tea-play .tea-scrap canvas{display:block;width:100%;height:57px;margin-bottom:3px}
#co01-tea-play .tea-scrap strong{font-family:var(--t-serif);font-size:13px;font-weight:400;line-height:17px;text-align:center}
#co01-tea-play .tea-scrap small{font-size:10px;line-height:14px;color:var(--t-muted);margin-top:4px;text-align:center}
#co01-tea-play .tea-try{--angle:3deg;background:color-mix(in srgb,var(--t-orangewash) 30%,var(--t-bg));margin-top:5px}
#co01-tea-play .tea-guide{--angle:-2deg;background:color-mix(in srgb,var(--t-greenwash) 50%,var(--t-bg))}
#co01-tea-play .tea-scrap:hover{transform:translateY(-7px) rotate(0deg)}
#co01-tea-play .tea-scrap[aria-pressed="true"]{transform:translateY(-5px) rotate(0deg);box-shadow:1px 5px 0 color-mix(in srgb,var(--t-ink) 25%,transparent)}
#co01-tea-play .tea-pull{display:flex;flex-direction:column;align-items:center;gap:6px;justify-content:center;min-height:44px;width:100%;border:0;border-top:1px solid var(--t-fold);background:var(--t-paper);font:italic 13px/1.3 var(--t-serif);padding:8px 0 12px;cursor:grab;touch-action:none;user-select:none;clip-path:polygon(0 0,100% 0,99.8% 94%,89% 92%,75% 98%,63% 94%,52% 98%,40% 93%,25% 98%,12% 95%,.3% 98%)}
#co01-tea-play .tea-pull:active{cursor:grabbing}
#co01-tea-play .tea-grip{height:3px;width:23px;border-top:1px solid var(--t-muted);border-bottom:1px solid var(--t-muted);opacity:.6}
#co01-tea-play :focus-visible{outline:2px solid var(--t-blue);outline-offset:2px}
:root .hero>h1+.epigraph{margin:40px 0 0}
@media (max-width:480px){#co01-tea-play{margin-bottom:22px}#co01-tea-play .tea-theatre{height:180px}#co01-tea-play .tea-aside{font-size:12px;bottom:4px}#co01-tea-play .tea-drawer{width:100%;margin-top:6px}#co01-tea-play .tea-scraps{gap:7px;padding:19px 7px 14px}#co01-tea-play .tea-scrap{padding-left:2px;padding-right:2px;min-height:117px}#co01-tea-play .tea-scrap strong{font-size:12px;line-height:16px}#co01-tea-play .tea-scrap small{font-size:11px;line-height:13px}#co01-tea-play .tea-interrupt{right:1%;top:-3px;padding:10px 13px}#co01-tea-play .tea-interrupt span{font-size:14px}#co01-tea-play .tea-interrupt small{font-size:11px}:root .hero>h1+.epigraph{margin-top:30px}}
@media (prefers-reduced-motion:reduce){#co01-tea-play *{transition:none!important}}

.vid{position:relative;display:block;aspect-ratio:16/9;width:100%;border-radius:6px;overflow:hidden;isolation:isolate;container-type:inline-size;
  color:var(--screen-ink);background:radial-gradient(120% 95% at 50% 4%,var(--screen-2) 0%,var(--screen) 72%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.vid::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,transparent 0 61%,rgba(255,255,255,.028) 61% 100%),
             radial-gradient(70% 55% at 50% 61%,rgba(255,255,255,.035),transparent 70%)}
.vid::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;border-radius:inherit;
  background:linear-gradient(180deg,rgba(0,0,0,.28),transparent 26%,transparent 58%,rgba(0,0,0,.42))}
.vid>video,.vid>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;display:block}
.vid .tag{position:absolute;z-index:3;top:12px;left:12px;max-width:calc(100% - 24px);display:inline-flex;align-items:center;gap:7px;
  font:500 10px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--screen-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  padding:5px 8px 5px 7px;border-radius:3px;background:rgba(10,11,10,.5);box-shadow:inset 0 0 0 1px rgba(255,255,255,.09);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.vid .tag::before{content:"";width:6px;height:6px;border-radius:50%;flex:none;background:var(--c,var(--screen-muted))}
.vid .tag:has(i)::before{display:none}
.vid .tag i{width:6px;height:6px;border-radius:50%;flex:none}
.vid .tc{position:absolute;z-index:3;top:13px;right:13px;font:400 10.5px/1 var(--mono);letter-spacing:.04em;color:var(--screen-muted);font-variant-numeric:tabular-nums}
.vid .play{position:absolute;z-index:3;left:50%;top:46%;width:46px;height:46px;margin:-23px 0 0 -23px;border-radius:50%;
  background:rgba(255,255,255,.08);box-shadow:inset 0 0 0 1px rgba(255,255,255,.2);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  transition:transform .25s cubic-bezier(.2,.7,.2,1),background .25s}
.vid .play::after{content:"";position:absolute;left:52%;top:50%;width:13px;height:15px;transform:translate(-45%,-50%);background:var(--screen-ink);clip-path:polygon(0 0,100% 50%,0 100%)}
.vid:hover .play{transform:scale(1.07);background:rgba(255,255,255,.14)}
.vid .shot{position:absolute;z-index:3;left:14px;right:14px;bottom:27px;margin:0;font:400 12.5px/1.45 var(--sans);color:var(--screen-ink);opacity:.72;text-wrap:pretty;
  display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.vid .scrub{position:absolute;z-index:3;left:14px;right:14px;bottom:15px;height:2px;border-radius:1px;background:rgba(255,255,255,.16)}
.vid .scrub::before{content:"";position:absolute;left:0;top:0;bottom:0;width:var(--p,0%);border-radius:1px;background:var(--screen-ink);opacity:.75}
.vid .scrub i::after{content:"";position:absolute;inset:-8px -7px}
.vid .scrub i{position:absolute;top:-3px;width:2px;height:8px;margin-left:-1px;border-radius:1px;background:var(--c,var(--screen-ink))}
.vid .scrub:not(:has(i))::after{content:"";position:absolute;left:0;top:-2px;width:6px;height:6px;border-radius:50%;background:var(--screen-ink);opacity:.8}
.vid .pip{position:absolute;z-index:3;top:10px;right:10px;width:40%;aspect-ratio:16/9;border-radius:4px;overflow:hidden;
  background:radial-gradient(120% 120% at 30% 10%,#3a3e37,#232621 70%);box-shadow:0 0 0 1px rgba(255,255,255,.22),0 6px 18px -6px rgba(0,0,0,.6)}
.vid .pip>video,.vid .pip>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.vid .pip span{position:absolute;left:6px;bottom:5px;right:6px;font:500 8.5px/1.2 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--screen-ink);opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vid .pip::after{content:"";position:absolute;left:50%;top:40%;width:7px;height:8px;transform:translate(-40%,-50%);background:var(--screen-ink);opacity:.7;clip-path:polygon(0 0,100% 50%,0 100%)}
.vid:has(.pip) .tag{max-width:calc(60% - 22px)}
@container (max-width:300px){
  .vid .tag{top:9px;left:9px;font-size:9.5px;padding:4px 7px 4px 6px}
  .vid .tc{top:10px;right:10px}
  .vid .play{top:40%;width:34px;height:34px;margin:-17px 0 0 -17px}.vid .play::after{width:10px;height:11px}
  .vid .shot{left:11px;right:11px;bottom:22px;font-size:11.5px;-webkit-line-clamp:3}
  .vid .scrub{left:11px;right:11px;bottom:12px}
}
@container (max-width:480px){.vid .tc{display:none}.vid .pip{width:34%;top:8px;right:8px}}
@container (max-width:200px){.vid .play{display:none}.vid .shot{font-size:10.5px;line-height:1.38;bottom:20px}.vid .pip span{font-size:7.5px}}
@container (min-width:640px){
  .vid .tag{top:18px;left:20px;font-size:10.5px;padding:6px 10px 6px 9px}
  .vid .tc{top:20px;right:20px;font-size:11px}
  .vid .play{width:76px;height:76px;margin:-38px 0 0 -38px}.vid .play::after{width:20px;height:23px}
  .vid .shot{left:22px;right:auto;max-width:min(66ch,72%);bottom:42px;font-size:14px;line-height:1.5}
  .vid .scrub{left:22px;right:22px;bottom:24px;height:3px}
  .vid .scrub i{top:-4px;height:11px;width:3px;margin-left:-1.5px}
}

.clip{min-width:0;position:relative}
.clip-cap{margin:10px 0 0;font:400 13px/1.5 var(--sans);color:var(--muted);text-wrap:pretty}
.clip-cap b{display:block;font-weight:500;color:var(--ink);font-size:13.5px;margin-bottom:1px}
.clip-cap .n{font:400 12px var(--mono);color:var(--ink-2);font-variant-numeric:tabular-nums;white-space:nowrap}
.clips{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:24px 20px;align-items:start}

.reel{position:relative;container-type:inline-size;--gap:20px;--card:clamp(260px,calc((100cqw - 2*var(--gap))/3),340px)}
.reel-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 14px}
.reel-bar .reel-l{font:500 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.reel-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex:none}
.reel-nav[hidden]{display:none}
.reel-count{font:400 11px var(--mono);letter-spacing:.06em;color:var(--muted);font-variant-numeric:tabular-nums;margin-right:8px;white-space:nowrap}
.reel-btn{width:32px;height:32px;border-radius:50%;border:1px solid var(--rule-2);background:transparent;color:var(--ink);display:inline-grid;place-items:center;cursor:pointer;padding:0;transition:border-color .15s,background .15s,color .15s,opacity .15s}
.reel-btn:hover:not(:disabled){border-color:var(--ink);background:var(--surface)}
.reel-btn:disabled{opacity:.35;cursor:default}
.reel-btn svg{display:block}
.reel-track{display:flex;gap:var(--gap);overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-behavior:smooth;overscroll-behavior-x:contain;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;outline:none;
  --fr:0px;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - var(--fr)),transparent 100%);mask-image:linear-gradient(90deg,#000 calc(100% - var(--fr)),transparent 100%)}
.reel-track::-webkit-scrollbar{display:none}
.reel-track:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px}
.reel:not(.at-end) .reel-track{--fr:min(56px,calc(var(--bleed,0px) + 24px))}
.reel-track>*{flex:0 0 var(--card);scroll-snap-align:start}
@media (max-width:600px){.reel{--gap:14px;--card:78vw}}
@media (min-width:761px){
  .reel.grid4 .reel-track{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px var(--gap);overflow:visible;-webkit-mask-image:none;mask-image:none;margin-right:0!important;padding-right:0!important}
}

.media-call{margin:0;display:flex;flex-direction:column;align-items:flex-end;text-align:right;flex:none}
.media-call .v{font:400 30px/1 var(--serif);letter-spacing:-.01em;color:var(--ink);font-variant-numeric:lining-nums tabular-nums}
.media-call .l{font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:6px}
.media-gap{margin-top:44px}

figure[data-fig="video1"]{margin-top:40px}
.media-hv{border-radius:8px}
@media (max-width:640px){.media-hv{aspect-ratio:4/5}.media-hv .shot{-webkit-line-clamp:9}}
.media-kinds{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0 24px;margin-top:18px}
.media-kinds>div{border-top:1px solid var(--rule);padding-top:12px;position:relative;min-width:0}
.media-kinds>div::before{content:"";position:absolute;left:0;top:-1px;width:28px;height:2px;background:var(--c)}
.media-kinds p{margin:0;font:400 13px/1.45 var(--sans);color:var(--ink-2);display:flex;gap:10px;align-items:baseline}
.media-kinds p+p{margin-top:4px}
.media-kinds .media-k{font:500 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin-bottom:6px;align-items:center;gap:8px}
.media-kinds .media-k::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c);flex:none}
.media-t{font:400 11px var(--mono);color:var(--muted);font-variant-numeric:tabular-nums;flex:none}
@media (max-width:760px){.media-kinds{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px}}

.media-chain .clip+.clip::before{content:"";position:absolute;top:0;left:calc(-1*var(--gap));width:var(--gap);height:0;padding-top:56.25%;background:var(--muted);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10' viewBox='0 0 14 10'%3E%3Cpath d='M1 5h11M8 1l4 4-4 4' fill='none' stroke='black' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px 10px no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10' viewBox='0 0 14 10'%3E%3Cpath d='M1 5h11M8 1l4 4-4 4' fill='none' stroke='black' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px 10px no-repeat}
.media-chain .clip:first-child .vid{box-shadow:inset 0 0 0 1px rgba(255,255,255,.06),0 0 0 1.5px var(--bg),0 0 0 2.5px var(--body)}
.media-chain{--gap:28px}
@media (max-width:600px){.media-chain{--gap:22px}}

.media-cfs{display:grid;grid-template-columns:minmax(0,1fr);gap:56px}
.media-cf{min-width:0}
.media-cf .fig-head{margin-bottom:18px}
.media-cf .fig-head>div:first-child{flex-basis:160px}
.media-cf-start{width:calc(50% - 8px);margin:0 auto}
.media-cf-start .vid{aspect-ratio:16/7;background:linear-gradient(180deg,var(--screen-2),var(--screen))}
.media-cf-start .shot{bottom:12px}
.vid.still{background:var(--screen)}
.vid.still::before{display:none}
.vid.still>img{object-position:50% 62%}
.media-fork{position:relative;height:34px}
.media-fork::before{content:"";position:absolute;left:50%;top:0;height:14px;border-left:1px solid var(--rule-2)}
.media-fork::after{content:"";position:absolute;left:25%;right:25%;top:14px;bottom:0;border:1px solid var(--rule-2);border-bottom:0;border-radius:6px 6px 0 0}
.media-cf-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:6px}
.media-cf-col{min-width:0}
.media-step{margin:6px 0;text-align:center;font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.media-ro{box-shadow:inset 0 0 0 1px rgba(255,255,255,.06),0 0 0 1.5px var(--bg),0 0 0 2.5px var(--c)}
@media (max-width:720px){.media-cf .fig-head{margin-bottom:14px}}
.media-cf-shown{margin:8px 0 0;display:flex;align-items:center;justify-content:center;gap:5px;font:400 13px/1.4 var(--sans);color:var(--ink-2)}
.media-cf-shown span{font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-right:4px}
@media (max-width:560px){
  .media-cf-start{width:100%}
  .media-fork{height:16px}
  .media-fork::after{display:none}
  .media-fork::before{height:16px}
  .media-cf-cols{grid-template-columns:minmax(0,1fr);gap:20px}
}
.media-cf-call .l{max-width:10.5em;font:400 12.5px/1.4 var(--sans);letter-spacing:0;text-transform:none;color:var(--muted);margin-top:6px;text-wrap:balance}
@media (max-width:600px){.media-cf-call{flex-direction:row;align-items:baseline;gap:10px}.media-cf-call .l{max-width:none;margin-top:0}}
.media-a .vid{aspect-ratio:4/3}
.media-a .vid .play{top:52%}
.media-a .vid .pip{width:44%}
@container (max-width:340px){.vid .pip span{font-size:7.5px;left:5px;right:5px}}
@media (max-width:600px){.media-call{align-items:flex-start;text-align:left}}
@media (min-width:761px){.media-dyn .vid{aspect-ratio:2/1}}

@media (min-width:640px){figure[data-fig="figure12"] .clips{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px 16px}}

figure[data-fig="video4"] .v4-how{list-style:none;margin:28px 0 0;padding:14px 0 0;border-top:1px solid var(--rule);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 28px;counter-reset:none}
figure[data-fig="video4"] .v4-how li{position:relative;display:flex;flex-direction:column;gap:2px;font:400 12.5px/1.45 var(--sans);color:var(--muted);padding-left:0}
figure[data-fig="video4"] .v4-how li+li::before{content:"→";position:absolute;left:-20px;top:17px;color:var(--faint);font-size:13px}
figure[data-fig="video4"] .v4-how .k{font:500 10px var(--mono);letter-spacing:.1em;color:var(--faint)}
figure[data-fig="video4"] .v4-how b{font:600 13.5px/1.35 var(--sans);color:var(--ink-2)}
figure[data-fig="video4"] .v4-how li.on b{color:var(--ink)}
figure[data-fig="video4"] .v4-how li.on .k{color:var(--body)}
@media (max-width:600px){
  figure[data-fig="video4"] .v4-how{grid-template-columns:1fr;gap:12px}
  figure[data-fig="video4"] .v4-how li+li::before{content:none}
}

.media-dm-tabs{position:relative;display:flex;gap:0 24px;margin:-4px -2px 26px;padding:0;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;overscroll-behavior-x:contain;
  box-shadow:inset 0 -1px 0 var(--rule);--fl:0px;--fr:0px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 var(--fl),#000 calc(100% - var(--fr)),transparent);mask-image:linear-gradient(90deg,transparent,#000 var(--fl),#000 calc(100% - var(--fr)),transparent)}
.media-dm-tabs::-webkit-scrollbar{display:none}
.media-dm-tabs.more{--fr:44px}
.media-dm-tabs.less{--fl:28px}
.media-dm-tab{flex:none;position:relative;display:inline-flex;align-items:baseline;gap:7px;margin:0;padding:10px 2px 12px;border:0;background:none;cursor:pointer;white-space:nowrap;
  font:500 13.5px/1.2 var(--sans);color:var(--muted);transition:color .15s}
.media-dm-tab:hover{color:var(--ink)}
.media-dm-tab::after{content:"";position:absolute;left:2px;right:2px;bottom:0;height:2px;border-radius:1px;background:var(--ink);transform:scaleX(0);transform-origin:0 50%;transition:transform .3s cubic-bezier(.2,.7,.2,1)}
.media-dm-tab[aria-selected="true"]{color:var(--ink)}
.media-dm-tab[aria-selected="true"]::after{transform:none}
.media-dm-tab:focus-visible{outline-offset:-2px}
.media-dm-tab .n{font:400 10.5px/1 var(--mono);color:var(--faint);font-variant-numeric:tabular-nums;transition:color .15s}
.media-dm-tab[aria-selected="true"] .n{color:var(--muted)}
.media-dm-panel{--c:var(--demo);animation:media-dm-in .35s ease both}
.media-dm-panel:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:4px}
@keyframes media-dm-in{from{opacity:0}to{opacity:1}}
.media-dm-set{display:grid;grid-template-columns:minmax(0,1fr) 64px minmax(0,1fr);align-items:stretch}
.media-dm-set[hidden]{display:none}
.media-dm-p,.media-dm-r{display:flex;flex-direction:column;min-width:0}
.media-dm-h{display:flex;align-items:center;justify-content:space-between;gap:10px;height:26px;margin:0 0 10px;white-space:nowrap;
  font:500 10px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.media-dm-h>span:first-child{min-width:0;overflow:hidden;text-overflow:ellipsis}
.media-dm-p .clip{flex:1 1 auto;display:flex;flex-direction:column}
.media-dm-p .vid{flex:1 1 auto;aspect-ratio:auto;min-height:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.06),0 0 0 1.5px var(--bg),0 0 0 2.5px var(--c)}
.media-dm-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));gap:12px;aspect-ratio:16/9}
.media-dm-grid .clip{display:flex;flex-direction:column;min-height:0}
.media-dm-grid .vid{flex:1 1 auto;aspect-ratio:auto;min-height:0}
.media-dm-to{position:relative;--y:calc(36px + (100% - 36px)/2)}
.media-dm-to::before{content:"";position:absolute;left:14px;right:15px;top:var(--y);height:1px;background:var(--muted)}
.media-dm-to::after{content:"";position:absolute;right:15px;top:var(--y);width:7px;height:7px;border-top:1px solid var(--muted);border-right:1px solid var(--muted);transform:rotate(45deg);transform-origin:100% 0}
.media-dm-p{container-type:inline-size}
@container (max-width:340px){.media-dm-h:has(.media-dm-pick) .media-dm-x{display:none}}
.media-dm-pick{padding:2px}
.media-dm-pick button{font-size:11px;letter-spacing:0;text-transform:none;padding:3px 10px}
@media (max-width:760px){.media-dm-set{grid-template-columns:minmax(0,1fr) 44px minmax(0,1fr)}.media-dm-to::before{left:9px;right:10px}.media-dm-to::after{right:10px}}
.media-dm-grid:not(:has(>:nth-child(3))){grid-template-rows:auto;align-content:center}
.media-dm-grid:not(:has(>:nth-child(3))) .vid{flex:none;aspect-ratio:16/9}
@media (max-width:640px){
  .media-dm-tabs{gap:0 18px;margin-bottom:20px}
  .media-dm-h{height:auto;min-height:26px;flex-wrap:wrap;row-gap:8px}
  .media-dm-set{grid-template-columns:minmax(0,1fr)}
  .media-dm-p .vid{flex:none;aspect-ratio:16/9}
  .media-dm-to{height:42px}
  .media-dm-to::before{left:50%;right:auto;top:8px;bottom:9px;width:1px;height:auto}
  .media-dm-to::after{left:50%;right:auto;top:auto;bottom:9px;margin:0 0 0 -3.5px;transform:rotate(135deg);transform-origin:50% 50%}
  .media-dm-grid{aspect-ratio:auto;grid-template-rows:none;gap:10px}
  .media-dm-grid .vid{flex:none;aspect-ratio:16/9}
}

.media-seq{--n:2;--gap:64px;--ar:56.25%;--vgap:46px;display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:20px var(--gap);align-items:start}
.media-seq3{--n:3;--gap:48px}
.media-seq1{--n:1}
.media-seq:not(.to){--gap:24px}
.media-seq.to>.clip+.clip::before{content:"";position:absolute;top:0;left:calc(-1*var(--gap));width:var(--gap);height:0;padding-top:var(--ar);background:var(--muted);pointer-events:none;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='10' viewBox='0 0 28 10'%3E%3Cpath d='M1 5h25.5M22.5 1l4 4-4 4' fill='none' stroke='black' stroke-width='1.25' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/28px 10px no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='10' viewBox='0 0 28 10'%3E%3Cpath d='M1 5h25.5M22.5 1l4 4-4 4' fill='none' stroke='black' stroke-width='1.25' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/28px 10px no-repeat}
@media (max-width:900px){.media-seq{--gap:48px}.media-seq3{--gap:34px}.media-seq:not(.to){--gap:20px}}
@media (max-width:640px){
  .media-seq:not(.row){grid-template-columns:minmax(0,1fr);row-gap:24px}
  .media-seq.to:not(.row){row-gap:var(--vgap)}
  .media-seq.to:not(.row)>.clip+.clip::before{top:calc(-1*var(--vgap));left:0;width:100%;height:var(--vgap);padding-top:0;
    -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='24' viewBox='0 0 10 24'%3E%3Cpath d='M5 1v21.5M1 18.5l4 4 4-4' fill='none' stroke='black' stroke-width='1.25' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/10px 24px no-repeat;
            mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='24' viewBox='0 0 10 24'%3E%3Cpath d='M5 1v21.5M1 18.5l4 4 4-4' fill='none' stroke='black' stroke-width='1.25' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/10px 24px no-repeat}
}
.media-o{display:inline-flex;align-items:baseline;gap:5px;padding:3px 7px 3px 6px;border-radius:3px;white-space:nowrap;
  font:500 10px/1.25 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);box-shadow:inset 0 0 0 1px var(--rule-2)}
.media-o i{font:600 12px/1 var(--sans);font-style:normal;letter-spacing:0;align-self:center}
.media-o.ok{background:var(--ink);color:var(--bg);box-shadow:none}

.media-at .media-dm-panel{--c:var(--self)}
.media-at-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.media-at-col{min-width:0}
.media-at-h{justify-content:flex-start;gap:9px}
.media-at-h::before{content:"";width:7px;height:7px;border-radius:50%;flex:none;background:var(--c)}
.media-at-col.off{--c:var(--screen-muted)}
.media-at-col.off .media-at-h::before{background:none;box-shadow:inset 0 0 0 1px var(--faint)}
.media-at .clip-cap{display:flex;align-items:center;gap:10px;margin-top:11px;color:var(--ink-2)}
.media-at-col.off .clip-cap{color:var(--muted)}
.media-tries{display:inline-flex;gap:3px;flex:none}
.media-tries i{display:grid;place-items:center;width:19px;height:19px;border-radius:3px;font:600 11px/1 var(--sans);font-style:normal;color:var(--ink-2);box-shadow:inset 0 0 0 1px var(--rule-2)}
.media-tries i.ok{background:var(--ink);color:var(--bg);box-shadow:none}
@media (max-width:640px){.media-at-pair{grid-template-columns:minmax(0,1fr);gap:26px}}

.media-gd .media-dm-panel{--c:var(--guide)}
.media-seq3 .vid .play{top:38%}
.media-gd-key{margin:0 0 2px}
.media-gd-key i{width:3px;height:11px;border-radius:1px;margin-right:8px;vertical-align:-1px;background:var(--guide)}

:root{--key-y:#e3b417;--key-r:#cf3a3a;--key-b:#2f6fc0}
.vid[hidden]{display:none}
.vid.live{background:var(--screen)}
.vid.live::before{display:none}
.vid.live::after{background:linear-gradient(180deg,rgba(0,0,0,.22),transparent 24%,transparent 78%,rgba(0,0,0,.32))}
.vid-pp{position:absolute;inset:0;z-index:3;margin:0;padding:0;border:0;border-radius:inherit;background:none;cursor:pointer;color:inherit}
.vid-pp:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.vid.live .vid-pp .play{opacity:0;transition:opacity .2s,transform .2s}
.vid.live.paused .vid-pp .play{opacity:1}
.vid.live .tag,.vid.live .pip,.vid.live .scrub{z-index:4;pointer-events:none}
.vid.live .pip{box-shadow:0 0 0 1px rgba(255,255,255,.28),0 6px 16px -6px rgba(0,0,0,.6)}
.vid.live .pip::after{display:none}
.vid.live .pip::before{content:"";position:absolute;left:0;right:0;bottom:0;height:46%;z-index:1;background:linear-gradient(transparent,rgba(0,0,0,.6))}
.vid.live .pip span{z-index:2}
.vid .pip.bl{top:auto;right:auto;left:10px;bottom:26px}
@container (max-width:480px){.vid .pip.bl{left:8px;bottom:20px}}
@container (min-width:640px){.vid .pip.bl{left:20px;bottom:38px}}
.vid .spd{position:absolute;z-index:4;right:12px;bottom:25px;pointer-events:none;display:inline-flex;align-items:center;
  font:500 9.5px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--screen-ink);white-space:nowrap;
  padding:4px 7px;border-radius:3px;background:rgba(10,11,10,.5);box-shadow:inset 0 0 0 1px rgba(255,255,255,.09);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
@container (max-width:300px){.vid .spd{right:9px;bottom:20px;font-size:8.5px;padding:3px 6px}}
@container (min-width:640px){.vid .spd{right:20px;bottom:37px;font-size:10px;padding:5px 8px}}
.vid.live .scrub::before{width:var(--p,0%)}
.vid.live .scrub::after{display:none}
.vid.live .scrub i[data-t]{pointer-events:auto;cursor:pointer}
.vid-alts{margin-top:10px}
.vid-alts button{display:inline-flex;align-items:center;gap:4px}
.vid-alts .k,.media-cf-shown .k{width:8px;height:8px;border-radius:50%;flex:none;background:var(--c);box-shadow:inset 0 0 0 1px rgba(0,0,0,.18)}
:is(.vid-alts,.media-cf-shown) .k.y{--c:var(--key-y)}:is(.vid-alts,.media-cf-shown) .k.r{--c:var(--key-r)}:is(.vid-alts,.media-cf-shown) .k.b{--c:var(--key-b)}

:root{--mx-p:#c98a00;--mx-r:#5a4fc0;--mx-s:#1597b5;--mx-g:#8e3a73}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--mx-p:#b8862a;--mx-r:#8f86e6;--mx-s:#0e9cb0;--mx-g:#ad4d84}}
:root[data-theme="dark"]{--mx-p:#b8862a;--mx-r:#8f86e6;--mx-s:#0e9cb0;--mx-g:#ad4d84}
.mx .perc6-s{margin-bottom:16px}
.mx-p{display:flex;align-items:center;gap:18px}
.mx-donut{flex:none;width:140px}
.mx-svg{display:block;overflow:visible}
.mx-sl{stroke:var(--bg);stroke-width:1.5;transition:opacity .15s;cursor:default}
.mx-cv{font:400 25px var(--serif);fill:var(--ink);font-variant-numeric:tabular-nums}
.mx-cl{font:400 10.5px var(--sans);fill:var(--muted);transition:opacity .15s}
.mx-sweep{stroke-dasharray:1 1;stroke-dashoffset:0;transition:stroke-dashoffset 1.3s cubic-bezier(.3,.6,.2,1) .15s}
.anim:not(.in) .mx-sweep{stroke-dashoffset:1}
.mx-list{flex:1;min-width:0}
.mx-r{margin:0;font:400 12.5px/1.4 var(--sans);color:var(--ink);transition:opacity .15s}
.mx-r i{width:9px;height:9px;border-radius:2px;flex:none;transform:translateY(1px)}
.mx-rk{display:block;margin-bottom:12px}
.mx-rk:last-child{margin-bottom:0}
.mx-l{display:flex;align-items:baseline;gap:8px;margin:0}
.mx-l span{min-width:0;flex:1}
.mx-l b{font:500 12px var(--mono);color:var(--ink);font-variant-numeric:tabular-nums;flex:none}
.mx-d{margin:2px 0 0 17px;font:400 12px/1.4 var(--sans);color:var(--muted)}
.mx-p.hov .mx-sl:not(.on){opacity:.25}
.mx-p.hov .mx-r:not(.on){opacity:.4}
.anim .mx-r{opacity:0;transform:translateY(4px);transition:opacity .4s calc(.35s + var(--d) * 70ms),transform .4s calc(.35s + var(--d) * 70ms)}
.anim.in .mx-r{opacity:1;transform:none}
.anim.in .mx-p.hov .mx-r:not(.on){opacity:.4;transition-delay:0s}
@media (max-width:360px){.mx-p{flex-direction:column;align-items:flex-start}}

.perc-lg{margin:0}
.perc-lg i.perc-ring{background:var(--bg);box-shadow:inset 0 0 0 1.75px var(--muted)}
.perc-lg i.perc-ln{height:2.5px;background:var(--ink)}
.perc-lg i.perc-ln2{height:2px;background:var(--muted)}
.perc-lg i.perc-dash{height:2px;background:repeating-linear-gradient(90deg,var(--muted) 0 4px,transparent 4px 7px)}
.perc-lg i.perc-band{height:10px;border-radius:2px;background:var(--ink);opacity:.14}

figure[data-fig="figure4"] #perc4-chart{min-height:0}
.perc4-lg i.perc4-sw-co{width:14px;height:10px;border-radius:2px;background:color-mix(in srgb,var(--ink) 9%,transparent);box-shadow:inset 0 0 0 1.75px var(--ink)}
.perc4-lg i.perc4-sw-sp{width:18px;height:0;border-radius:0;border-top:1.25px dashed var(--ink-2);background:none}

.pending-badge{flex:none;align-self:flex-start;font:500 10px/1 var(--mono);letter-spacing:.04em;color:var(--muted);background:var(--sunk);border-radius:3px;padding:4px 7px;white-space:nowrap}
figure[data-fig="figure6"] .perc6+.legend{margin-top:12px}
figure[data-fig="figure6"] .perc6{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 40px}
figure[data-fig="figure6"] .perc6>div{min-width:0}
figure[data-fig="figure6"] .perc6-h{margin-bottom:10px}
@media (max-width:720px){figure[data-fig="figure6"] .perc6{grid-template-columns:minmax(0,1fr)}}
.perc6-h{font:600 14px/1.35 var(--sans);color:var(--ink);margin:0 0 2px}
.perc6-h b{font:500 11px var(--mono);letter-spacing:.06em;color:var(--muted);margin-right:6px}
.perc6-s{font:400 12.5px/1.45 var(--sans);color:var(--muted);margin:0 0 10px}
figure[data-fig="figure6"] .chart,figure[data-fig="figure5"] .chart{min-height:0}

:root{--pv-plate:none}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--pv-plate:invert(.9) hue-rotate(180deg)}}
:root[data-theme="dark"]{--pv-plate:invert(.9) hue-rotate(180deg)}

.pv{display:flex;flex-direction:column;gap:14px;min-width:0}
.pv-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

.pv-clips{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;max-width:680px}
.pv-clip{display:flex;flex-direction:column;min-width:0;margin:0;padding:0;border:0;background:none;text-align:left;cursor:pointer;color:var(--ink);font:inherit;border-radius:6px}
.pv-clip img{display:block;width:100%;height:auto;max-height:64px;aspect-ratio:832/480;object-fit:cover;border-radius:5px;box-shadow:0 0 0 1px var(--rule);opacity:.62;transition:opacity .15s,box-shadow .15s}
.pv-clip b{display:block;margin-top:6px;font:600 11.5px/1.25 var(--sans);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pv-clip span{display:block;margin-top:1px;font:400 10.5px/1.3 var(--sans);color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pv-clip:hover img{opacity:.9}
.pv-clip[aria-pressed="true"] img{opacity:1;box-shadow:0 0 0 2px var(--bg),0 0 0 3.5px var(--ink)}
.pv-clip:focus-visible{outline:2px solid var(--accent);outline-offset:4px}

.pv-scene{display:grid;grid-template-columns:minmax(0,148px) minmax(0,304px) minmax(0,148px);grid-template-rows:repeat(var(--rows,1),112px);gap:14px 22px;
  justify-content:center;align-items:center;align-content:center;position:relative;min-height:236px;padding:24px 6px;isolation:isolate}
.pv-links{position:absolute;inset:12px 6px;width:calc(100% - 12px);height:calc(100% - 24px);z-index:-1;overflow:visible;pointer-events:none}
.pv-links line{stroke:var(--rule-2);stroke-width:1;stroke-dasharray:2 3;vector-effect:non-scaling-stroke}
.pv-card{position:relative;min-width:0;margin:0;background:var(--surface);border:1px solid var(--rule);border-radius:8px;box-shadow:0 8px 24px -14px rgba(15,16,14,.28);overflow:hidden}
.pv-card video,.pv-card img{display:block;width:100%;aspect-ratio:var(--ar,832/480);max-height:112px;object-fit:contain;background:var(--screen)}
.pv-card.plate video{background:#fff;filter:var(--pv-plate)}
.pv-cap{margin:0;padding:6px 8px;font:500 10.5px/1.25 var(--sans);color:var(--ink-2)}
.pv-sat{transform:translateY(var(--lift,0px)) rotate(var(--tilt,0deg));transition:transform .2s ease,box-shadow .2s ease;z-index:2;outline:none}
.pv-sat:hover,.pv-sat:focus-visible{transform:translateY(-4px) scale(1.06);box-shadow:0 14px 30px -14px rgba(15,16,14,.35);z-index:4}
.pv-sat:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.pv-in{grid-column:2;grid-row:1/-1;z-index:3;border-color:var(--rule-2);box-shadow:0 12px 36px -20px rgba(15,16,14,.38)}
.pv-in video{max-height:none}
.pv-in .pv-cap{display:flex;justify-content:space-between;gap:8px;padding:8px 10px;font-size:11px}
.pv-rgb{font:500 9px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}

.pv-scene.pv-paired{grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:none;gap:14px;align-items:start;min-height:0;padding:18px 0}
.pv-case{min-width:0;background:var(--surface);border:1px solid var(--rule);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}
.pv-case>b{display:block;margin:12px 12px 3px;font:600 12px/1.3 var(--sans);color:var(--ink)}
.pv-case>span{display:block;margin:0 12px 12px;min-height:32px;font:400 11px/1.45 var(--sans);color:var(--muted)}
.pv-case .pv-card{border:0;border-radius:0;box-shadow:none}
.pv-case .pv-card+.pv-card{border-top:1px solid var(--rule)}
.pv-case video,.pv-case img{aspect-ratio:832/480;max-height:none}
.pv-camera .pv-card:first-of-type video{object-fit:cover}
.pv-case .pv-cap{padding:6px 10px;font-size:10px}

.pv-bar{display:flex;align-items:center;gap:8px 12px;flex-wrap:wrap;margin-top:-2px}
.pv-bar[hidden]{display:none}
.pv-pp{flex:none}
.pv-range{flex:1 1 80px;min-width:80px;height:18px;margin:0;accent-color:var(--ink);cursor:pointer}
.pv-fr{flex:none;min-width:52px;font:500 11px/1 var(--mono);letter-spacing:.04em;color:var(--muted);font-variant-numeric:tabular-nums;text-align:right}
.pv-speed{margin-left:auto}
.pv-speed button{padding-left:9px;padding-right:9px}
.pv-note{margin:0;font:400 13px/1.5 var(--sans);color:var(--muted);text-wrap:pretty}

@media (max-width:640px){
  .pv-clips{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:2px;margin-right:calc(-1 * var(--gutter,16px));padding-right:var(--gutter,16px)}
  .pv-clips::-webkit-scrollbar{display:none}
  .pv-clip{flex:0 0 120px;scroll-snap-align:start}
  .pv-clip img{margin:4px 0 0 4px;width:calc(100% - 8px)}
  .pv-scene{grid-template-columns:minmax(0,1fr) minmax(0,1.7fr) minmax(0,1fr);grid-template-rows:repeat(var(--rows,1),88px);gap:10px 8px;padding:20px 3px;min-height:190px}
  .pv-card{border-radius:6px}
  .pv-card video,.pv-card img{max-height:80px}
  .pv-cap{font-size:9px;padding:5px}
  .pv-in video{max-height:none}
  .pv-in .pv-cap{font-size:9.5px;padding:6px}
  .pv-rgb{font-size:8px}
  .pv-scene.pv-paired{display:flex;justify-content:flex-start;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;gap:12px;padding:14px var(--gutter,16px) 14px 0;margin-right:calc(-1 * var(--gutter,16px))}
  .pv-scene.pv-paired::-webkit-scrollbar{display:none}
  .pv-paired .pv-case{flex:0 0 74%;scroll-snap-align:start}
  .pv-paired .pv-card video,.pv-paired .pv-card img{max-height:none}
}

figure[data-fig="figure1"] #story-cost svg,figure[data-fig="figure2"] #story-ctx svg,figure[data-fig="figure7"] #story-exp svg{overflow:visible}


#story-ctx{font-family:var(--sans)}
figure[data-fig="figure2"] #story-ctx svg.cx-g{display:block;width:auto;height:auto;flex:none;overflow:visible}
.cx-k{cursor:default;min-width:0}
.cx-k b{display:block;font:600 13.5px/1.3 var(--sans);color:var(--ink)}
.cx-k span{display:block;margin-top:3px;font:400 12px/1.4 var(--sans);color:var(--muted);text-wrap:balance}
.cx-bar{background:var(--sunk);border-radius:12px;pointer-events:none}
.cx-row.ep .cx-bar,.cx-bar.ep{background:var(--surface);box-shadow:inset 0 0 0 1.5px var(--ink)}
.cx-c{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;min-width:0}
.cx-c.on{cursor:default}
.cx-c.off i{display:block;width:4px;height:4px;border-radius:50%;background:var(--rule-2)}
.cx-lab{margin:0 0 9px;display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px;font:400 13px/1.4 var(--sans);color:var(--muted)}
.cx-lab b{font:600 14.5px/1.35 var(--sans);color:var(--ink)}
.cx-lab em{font:500 10.5px/1 var(--mono);font-style:normal;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);padding:4px 6px 3px;border:1px solid var(--rule-2);border-radius:3px}
.cx.w{display:flex;flex-direction:column;gap:22px}
.cx.w .cx-hd,.cx.w .cx-trk{display:grid;grid-template-columns:repeat(6,minmax(0,1fr))}
.cx.w .cx-hd{padding-bottom:2px}
.cx.w .cx-k{text-align:center;padding:0 8px}
.cx.w .cx-trk{grid-template-rows:66px}
.cx.w .cx-bar,.cx.w .cx-c{grid-row:1}
.cx.n{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));column-gap:6px;max-width:480px}
.cx.n .cx-bar{border-radius:10px}
.cx-ph{position:relative;z-index:1;padding:11px 4px 9px;text-align:center;font:600 11.5px/1.25 var(--sans);color:var(--ink-2);text-wrap:balance;min-width:0}
.cx-ph.ep{color:var(--ink)}
.cx.n .cx-k{padding:9px 6px 9px 0}
.cx.n .cx-k b{font-size:12.5px}
.cx.n .cx-k span{font-size:11px;line-height:1.35;margin-top:1px}
.cx.n .cx-c{padding:8px 2px}

#story-exp{font-family:var(--sans)}
figure[data-fig="figure7"] #story-exp svg.s7v{display:block;width:100%;height:100%;overflow:hidden;border-radius:3px}
.s7w{display:grid;grid-template-columns:repeat(6,minmax(0,1fr)) 4px minmax(0,1fr);column-gap:8px;align-items:start}
.s7-gp{grid-row:1;position:relative;border-top:1px solid var(--rule-2);margin-bottom:12px;min-width:0}
.s7-gp::before,.s7-gp::after{content:"";position:absolute;top:-1px;width:1px;height:5px;background:var(--rule-2)}
.s7-gp::before{left:0}.s7-gp::after{right:0}
.s7-gp b{display:block;padding:6px 0 0;font:500 11.5px/1.35 var(--sans);color:var(--ink-2)}
.s7-gp span{display:block;font:400 11px/1.35 var(--sans);color:var(--muted)}
.s7-gp.tg{border-top:1.2px dashed var(--ink)}
.s7-gp.tg::before,.s7-gp.tg::after{background:var(--ink)}
.s7-gp.tg b{color:var(--ink)}
.s7-th{grid-row:2;aspect-ratio:16/9;border-radius:3px;position:relative;cursor:default;box-shadow:0 -2px 0 var(--c);min-width:0}
.s7-th.tg{box-shadow:none;outline:1.2px dashed var(--ink);outline-offset:3px}
.s7-pred{position:absolute;inset:0;border-radius:3px;overflow:hidden}
.s7-th video,.s7-th img{display:block;width:100%;height:100%;object-fit:cover;border-radius:3px;background:var(--screen)}
.s7-th.tg>.s7img{opacity:.4;filter:grayscale(1)}
.s7-th>.s7vid,.s7-pred>.s7vid{position:absolute;inset:0;background:transparent}
.s7-empty{position:absolute;inset:0;border-radius:3px;border:1px dashed var(--rule-2);background:var(--wash)}
.s7-th>svg.s7-ic{background:var(--wash)}
.s7-badge{position:absolute;right:4px;top:4px;font:500 8.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--screen);background:var(--self);padding:3px 5px 2px;border-radius:999px}
.st-anim .s7-pred:not(.st-on){transform:none}
.st-anim .s7-pred.st-on{transition-delay:.95s}
.s7-cap{grid-row:3;padding-top:8px;min-width:0;cursor:default;font:600 12px/1.3 var(--sans);color:var(--ink)}
.s7-tag{grid-row:4;margin-top:8px;justify-self:start;max-width:100%;min-width:0;display:flex;flex-direction:column;gap:1px;padding:4px 7px 5px;border:1px solid var(--rule-2);border-radius:4px;background:var(--surface);font:400 10px/1.3 var(--mono);cursor:default}
.s7-tag b{display:flex;align-items:center;gap:5px;font-weight:500;color:var(--ink);white-space:nowrap}
.s7-tag b i{width:6px;height:6px;border-radius:50%;background:var(--c);flex:none}
.s7-tag span{position:relative;align-self:flex-start;color:var(--muted);transition:color .35s}
.s7-tag.drop span::after{content:"";position:absolute;left:-1px;right:-1px;top:55%;height:1px;background:var(--ink-2);transform:scaleX(0);transform-origin:left;transition:transform .35s}
.s7-tag.drop.st-on span{color:var(--faint)}
.s7-tag.drop.st-on span::after{transform:scaleX(1)}
.st-anim .s7-tag.drop.st-on span,.st-anim .s7-tag.drop.st-on span::after{transition-delay:1s}
.s7-scan{grid-row:2;align-self:stretch;position:relative;pointer-events:none;overflow:hidden;z-index:1}
.st-anim .s7-scan:not(.st-on){transform:none}
.s7-scan::after{content:"";position:absolute;top:-2px;bottom:0;left:0;width:22%;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--self) 34%,transparent),transparent);transform:translateX(-100%);opacity:0}
.st-anim .s7-scan.st-on::after{animation:s7-scan 1.15s cubic-bezier(.45,.1,.45,1)}
@keyframes s7-scan{0%{transform:translateX(-100%);opacity:1}85%{opacity:1}100%{transform:translateX(460%);opacity:0}}
.s7-ctx{grid-row:5;margin-top:18px;display:flex;align-items:center;gap:8px;font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink);min-width:0;clip-path:inset(-4px 0 -4px 0)}
.s7-ctx em{font:italic 400 12.5px var(--serif);letter-spacing:0;text-transform:none;color:var(--muted);white-space:nowrap}
.s7-ctx b{flex:1;min-width:12px;height:1px;background:var(--ink);position:relative;margin-right:1px}
.s7-ctx b::after{content:"";position:absolute;right:-1px;top:-3.5px;border:4px solid transparent;border-left:6px solid var(--ink);border-right:0}
.st-anim .s7-ctx{transition:clip-path 1s cubic-bezier(.3,.6,.2,1)}
.st-anim .s7-ctx:not(.st-on){opacity:1;transform:none;clip-path:inset(-4px 100% -4px 0)}
.s7-ctxt{grid-row:5;margin-top:18px;align-self:center;font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink)}
.st-anim .s7-ctxt.st-on{transition-delay:.85s}
.s7-say{margin-top:22px;padding-top:14px;border-top:1px solid var(--rule);display:flex;flex-direction:column;gap:10px}
.s7-steps{display:flex;flex-wrap:wrap;gap:6px}
.s7-steps button{display:inline-flex;align-items:center;gap:6px;font:500 10px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);background:none;border:1px solid var(--rule-2);border-radius:999px;padding:3px 10px 3px 3px;cursor:pointer;transition:color .2s,border-color .2s}
.s7-steps button i{font-style:normal;width:17px;height:17px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--wash);color:var(--ink-2);letter-spacing:0;transition:background .2s,color .2s}
.s7-steps button em{font-style:normal}
.s7-steps button.done{color:var(--ink-2)}
.s7-steps button:hover{color:var(--ink);border-color:var(--ink-2)}
.s7-steps button.cur{color:var(--ink);border-color:var(--ink)}
.s7-steps button.cur i{background:var(--ink);color:var(--bg)}
.s7-line{margin:0;display:flex;gap:12px;align-items:baseline;min-height:3em;font:400 14px/1.5 var(--sans);color:var(--ink)}
.s7-n{flex:none;font:500 10px var(--mono);letter-spacing:.1em;color:var(--muted)}
.s7-line.sw .s7-t{animation:s7-in .45s ease}
@keyframes s7-in{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){.s7-scan{display:none}.s7-line.sw .s7-t{animation:none}}
.s7n{display:flex;flex-direction:column}
.s7n-ctx{position:relative;padding-left:18px}
.s7n-bar{position:absolute;left:4px;top:6px;bottom:2px;width:1px;background:var(--ink);clip-path:inset(0 -6px -8px -6px)}
.s7n-bar::after{content:"";position:absolute;bottom:-2px;left:-3.5px;border:4px solid transparent;border-top:6px solid var(--ink);border-bottom:0}
.st-anim .s7n-bar{transition:clip-path 1s cubic-bezier(.3,.6,.2,1)}
.st-anim .s7n-bar:not(.st-on){opacity:1;transform:none;clip-path:inset(0 -6px 100% -6px)}
.s7n-gh{margin:16px 0 8px;font:500 11.5px/1.35 var(--sans);color:var(--ink-2)}
.s7n-gh:nth-child(2){margin-top:0}
.s7n-gh span{font-weight:400;color:var(--muted);margin-left:6px}
.s7n-row{display:grid;grid-template-columns:clamp(96px,36%,150px) minmax(0,1fr);column-gap:12px;align-items:start;padding-bottom:12px}
.s7n .s7-th{grid-row:auto}
.s7n>.s7n-row{padding-left:18px}
.s7n .s7-th.tg{outline-offset:2px}
.s7n-tx{min-width:0;display:flex;flex-direction:column;gap:2px}
.s7n-tx>b{font:600 12.5px/1.3 var(--sans);color:var(--ink)}
.s7n-tx>span{font:400 11.5px/1.35 var(--sans);color:var(--muted)}
.s7n .s7-tag{grid-row:auto;margin-top:6px;flex-direction:row;flex-wrap:wrap;gap:2px 8px;align-items:center}
.s7n-tgh{margin:8px 0 10px;padding-top:12px;border-top:1px dashed var(--rule-2);font:500 10px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink)}
.s7n-tgh em{font:italic 400 13px var(--serif);letter-spacing:0;text-transform:none;color:var(--muted);margin-left:6px}
@media (max-width:520px){.s7-steps button:not(.cur){padding-right:3px}.s7-steps button:not(.cur) em{display:none}.s7-line{min-height:4.5em}}

.cx.st-anim .cx-bar:not(.st-on){opacity:1;transform:none;clip-path:inset(0 100% 0 0 round 12px)}
.cx.st-anim .cx-bar.st-on{clip-path:inset(0 0 0 0 round 12px)}
.cx.n.st-anim .cx-bar:not(.st-on){clip-path:inset(0 0 100% 0 round 10px)}
.cx.n.st-anim .cx-bar.st-on{clip-path:inset(0 0 0 0 round 10px)}
.cx.st-anim .cx-c.on:not(.st-on){transform:scale(.6) translateY(4px)}
.cx.st-anim .cx-c.on{transition:opacity .35s ease,transform .5s cubic-bezier(.3,1.5,.5,1)}
.cx.w.st-anim .cx-row.ep .cx-c.on.st-on{animation:cx-pop .7s ease-out}
@keyframes cx-pop{0%{filter:drop-shadow(0 0 0 transparent)}35%{filter:drop-shadow(0 0 6px color-mix(in srgb,var(--ink) 25%,transparent))}100%{filter:drop-shadow(0 0 0 transparent)}}

.sa{display:flex;flex-direction:column;color:var(--ink);font-family:var(--sans);text-align:left}
.sa-kick{display:block;font:500 10px/1.2 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.sa-k-s2{color:var(--s2)}.sa-k-ink{color:var(--ink)}
.sa-bx{border-radius:12px;padding:16px;background:var(--bg);min-width:0}
.sa-hd{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 10px;margin:6px 0 12px}
.sa-hd b{font:600 15px/1.3 var(--sans);color:var(--ink)}
.sa-hd span{font:400 12.5px/1.4 var(--sans);color:var(--muted)}
.sa-orch{border:1.5px solid var(--s2)}
.sa-prompt{border:1.25px dashed var(--rule-2);background:transparent}
.sa-polbox{border:1.5px solid var(--rule-2);transition:border-color .4s}
.sa-on .sa-polbox{border-color:var(--ink)}
.sa-more-t{font:500 10px/1.2 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-style:normal;white-space:nowrap}
.sa-fd{opacity:0;transform:translateY(8px);transition:opacity .45s,transform .5s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.sa-on .sa-fd{opacity:1;transform:none}
.sa-instant *,.sa-instant *::before,.sa-instant *::after{transition:none!important}
.sa-ocells{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.sa-oc{display:flex;flex-direction:column;gap:10px;background:color-mix(in srgb,var(--s2) 7%,var(--sunk));border-radius:8px;padding:11px 11px 12px;min-width:0}
.sa .sa-oc svg{display:block;flex:none;width:24px;height:24px}
.sa .sa-in svg,.sa .sa-act svg{display:block;flex:none;width:auto;height:auto}
.sa-oc b{font:600 12.5px/1.3 var(--sans);color:var(--ink)}
.sa-oc.sa-more{background:transparent;border:1.25px dashed var(--rule-2);align-items:center;justify-content:center}
.sa-n .sa-ocells{grid-template-columns:repeat(3,minmax(0,1fr))}
.sa-oi-mem .sa-lv{transform-box:fill-box;transform-origin:50% 100%}
.sa-live .sa-oi-mem .sa-lv{animation:sa-lv 3.2s ease-in-out infinite}
@keyframes sa-lv{0%,100%{transform:scaleY(.35)}50%{transform:scaleY(1)}}
.sa-live .sa-oi-plan .sa-c1{animation:sa-fade 3s ease-in-out infinite}
.sa-live .sa-oi-plan .sa-c2{animation:sa-fade 3s ease-in-out .35s infinite}
.sa-live .sa-oi-plan .sa-c3{animation:sa-fade 3s ease-in-out .7s infinite}
@keyframes sa-fade{0%,100%{opacity:.2}25%,70%{opacity:1}}
.sa-oi-tool .sa-wr{transform-box:fill-box;transform-origin:50% 50%}
.sa-live .sa-oi-tool .sa-wr{animation:sa-wr 2.6s ease-in-out infinite}
@keyframes sa-wr{0%,100%{transform:rotate(0)}30%{transform:rotate(-18deg)}60%{transform:rotate(8deg)}}
.sa-live .sa-oi-mon .sa-pu{animation:sa-pu 3.4s ease-in-out infinite}
@keyframes sa-pu{0%,100%{transform:translateX(0)}25%{transform:translateX(-2.4px)}70%{transform:translateX(2.4px)}}
.sa-arr{position:relative;height:44px;margin-left:34px}
.sa-arr i{position:absolute;left:0;top:4px;bottom:6px;width:1.5px;background:var(--ink-2);transform-origin:top;transform:scaleY(0);transition:transform .45s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.sa-arr i::after{content:"";position:absolute;left:-4px;bottom:-2px;border:5px solid transparent;border-top:7px solid var(--ink-2);border-bottom:0}
.sa-arr span{position:absolute;left:12px;top:14px;font:italic 400 12px/1.2 var(--sans);color:var(--muted);opacity:0;transition:opacity .3s;transition-delay:var(--d,0s)}
.sa-on .sa-arr i{transform:scaleY(1)}
.sa-on .sa-arr span{opacity:1}
.sa-dlab{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:0 0 4px}
.sa-dlab b{font:600 15px/1.3 var(--sans);color:var(--ink)}
.sa-dlab .sa-kick{order:-1;flex-basis:100%}
.sa-deck{position:relative;margin:0 auto}
.sa-card{position:absolute;left:0;top:0;width:var(--cw);background:var(--bg);border:1px solid var(--rule);border-radius:10px;padding:8px 8px 10px;box-shadow:0 6px 18px -8px var(--shadow),0 1px 2px var(--shadow);
  transform:translate(var(--sx),var(--sy)) rotate(0deg) scale(.86);opacity:0;transition:transform .6s cubic-bezier(.2,.8,.2,1),opacity .3s,box-shadow .2s;transition-delay:var(--d,0s);z-index:var(--z)}
.sa-on .sa-card{transform:translate(var(--x),var(--y)) rotate(var(--r));opacity:1}
.sa-on .sa-card:hover{transform:translate(var(--x),calc(var(--y) - 12px)) rotate(0deg) scale(1.04);z-index:20;transition-delay:0s;box-shadow:0 14px 30px -10px var(--shadow)}
.sa-card .sa-m{position:relative;aspect-ratio:16/10;border-radius:6px;overflow:hidden;background:var(--sunk);box-shadow:inset 0 3px 0 var(--c)}
.sa .sa-card .sa-m svg{position:absolute;inset:0;width:100%;height:100%;overflow:hidden}
.sa-card b{display:block;font:600 11.5px/1.3 var(--sans);margin-top:8px;color:var(--ink);text-wrap:balance}
.sa-card.sa-more{background:transparent;border:1.25px dashed var(--rule-2);box-shadow:none;display:flex;align-items:center;justify-content:center}
.sa-pol{display:grid;grid-template-columns:minmax(0,1fr) 112px 200px;align-items:center}
.sa-n .sa-pol{grid-template-columns:1fr}
.sa-ins{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}
.sa-in{display:flex;align-items:center;gap:8px;min-width:0;background:var(--sunk);border-radius:6px;padding:8px 9px;font:600 11.5px/1.25 var(--sans);color:var(--ink)}
.sa-in svg{flex:none}
.sa-in.sa-h{background:color-mix(in srgb,var(--body) 10%,var(--bg));box-shadow:inset 0 0 0 1px var(--body)}
.sa-in.sa-more{grid-column:1/-1;justify-content:center;background:transparent;border:1.25px dashed var(--rule-2);padding:6px 9px}
.sa-bb{margin-top:8px;border:1.25px solid var(--ink);border-radius:6px;padding:9px 10px 10px;position:relative;overflow:hidden}
.sa-tk{display:flex;gap:2px;height:6px;margin-bottom:8px}
.sa-tk i{flex:1;border-radius:1.5px;background:var(--c);opacity:.7}
.sa-bb b{display:block;font:600 12px/1.3 var(--sans)}
.sa-sh{position:absolute;inset:0;background:linear-gradient(100deg,transparent 35%,color-mix(in srgb,var(--bg) 70%,transparent) 50%,transparent 65%);transform:translateX(-100%)}
.sa-live .sa-sh{animation:sa-sh 2.4s linear infinite}
@keyframes sa-sh{to{transform:translateX(100%)}}
.sa-act{display:flex;align-items:center;gap:8px;margin-top:8px;border:1.25px solid var(--ink);background:var(--sunk);border-radius:6px;padding:6px 9px;font:600 12px/1.2 var(--sans)}
.sa-xg{position:relative;height:100%;min-height:96px}
.sa-n .sa-xg{height:72px;min-height:0}
.sa .sa-xg svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.sa-lbl{position:absolute;left:0;right:0;text-align:center;font:400 11px/1.3 var(--sans);color:var(--muted)}
.sa-lbl b{display:block;font-weight:600;color:var(--ink);font-size:11.5px}
.sa-live .sa-chunks{animation:sa-chunks .9s linear infinite}
@keyframes sa-chunks{to{stroke-dashoffset:-16}}
.sa-live .sa-back{animation:sa-back 1.2s linear infinite reverse}
@keyframes sa-back{to{stroke-dashoffset:-14}}
.sa-rob{min-width:0}
.sa-rob .sa-m{position:relative;aspect-ratio:4/3;border-radius:10px;background:var(--bg);border:1px solid var(--rule);overflow:hidden}
.sa-n .sa-rob .sa-m{max-width:260px}
.sa .sa-rob .sa-m svg{position:absolute;inset:0;width:100%;height:100%;overflow:hidden}
.sa-rob b{display:block;font:600 12.5px/1.3 var(--sans);margin-top:8px;color:var(--ink)}
.sa-g-type{transform-box:fill-box;transform-origin:left center}
.sa-live .sa-g-type{animation:sa-type 3.2s steps(12) infinite}
.sa-live .sa-g-caret{animation:sa-caret 3.2s steps(12) infinite}
@keyframes sa-type{0%{transform:scaleX(.05)}70%,100%{transform:scaleX(1)}}
@keyframes sa-caret{0%{transform:translateX(-32px)}70%,100%{transform:translateX(0)}}
.sa-live .sa-g-slide{animation:sa-slide 3.6s linear infinite}
@keyframes sa-slide{to{transform:translateX(-104px)}}
.sa-g-x1,.sa-g-x2{transform-box:fill-box;transform-origin:center}
.sa-live .sa-g-x1{animation:sa-pop 4s ease-out infinite}
.sa-live .sa-g-x2{animation:sa-pop 4s ease-out 1s infinite}
@keyframes sa-pop{0%{transform:scale(.4);opacity:0}12%{transform:scale(1.15);opacity:1}20%,100%{transform:scale(1);opacity:1}}
.sa-live .sa-g-dot{animation:sa-dot 1.2s ease-in-out infinite}
.sa-live .sa-g-dot:nth-of-type(2){animation-delay:.15s}
.sa-live .sa-g-dot:nth-of-type(3){animation-delay:.3s}
@keyframes sa-dot{0%,60%,100%{transform:translateY(0);opacity:.45}30%{transform:translateY(-3px);opacity:1}}
.sa-g-wave{transform-box:fill-box;transform-origin:50% 100%}
.sa-live .sa-g-wave{animation:sa-wave 1.8s ease-in-out infinite}
@keyframes sa-wave{0%,100%{transform:rotate(-10deg)}50%{transform:rotate(12deg)}}
.sa-live .sa-g-focus{animation:sa-focus 2.4s ease-in-out infinite}
@keyframes sa-focus{0%,100%{opacity:.35}50%{opacity:1}}
.sa-live .sa-rg-body{animation:sa-rgb 5s ease-in-out infinite}
.sa-live .sa-rg-cube{animation:sa-rgc 5s ease-in-out infinite}
.sa-live .sa-rg-fl{animation:sa-rgl 5s ease-in-out infinite}
.sa-live .sa-rg-fr{animation:sa-rgr 5s ease-in-out infinite}
@keyframes sa-rgb{0%{transform:translateY(0)}22%,34%{transform:translateY(32px)}56%,66%{transform:translateY(0)}84%,92%{transform:translateY(32px)}100%{transform:translateY(0)}}
@keyframes sa-rgc{0%,34%{transform:translateY(0)}56%,66%{transform:translateY(-32px)}84%,100%{transform:translateY(0)}}
@keyframes sa-rgl{0%,24%{transform:translateX(0)}32%,86%{transform:translateX(8px)}93%,100%{transform:translateX(0)}}
@keyframes sa-rgr{0%,24%{transform:translateX(0)}32%,86%{transform:translateX(-8px)}93%,100%{transform:translateX(0)}}
.sa-paused *{animation-play-state:paused!important}
@media (prefers-reduced-motion: reduce){.sa *{animation:none!important}}


:root:root{
  --coco-brand-blue:#92CEFF; --coco-gray:#353535; --coco-black:#131415; --coco-light-blue:#D2ECFF;
  --bg:#ffffff; --surface:#ffffff; --sunk:#ededed; --wash:#f4f4f4;
  --ink:var(--coco-black); --ink-2:var(--coco-gray); --muted:#696969; --faint:#a6a6a6;
  --rule:#e5e5e5; --rule-2:#d3d3d3; --grid:#e1e1e1;
  --accent:var(--coco-black); --accent-ink:var(--coco-black);
  --demo:#1784e8; --self:#e9561b; --guide:#0b9462; --body:#5530c4;
  --s2:#5b62a8;
  --screen:var(--coco-black); --screen-2:#232426; --screen-ink:#f4f4f4; --screen-muted:#9e9e9e;
  --note-bg:#fff3c2; --note-ink:#574100; --note-rule:#e5c445;
  --shadow:0 1px 2px rgba(19,20,21,.06),0 12px 30px -10px rgba(19,20,21,.24);
  --serif:"OPPO Sans 4.0","OPPO Sans","Onest","MiSans","Source Han Sans SC","Noto Sans CJK SC","PingFang SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --sans:"OPPO Sans 4.0","OPPO Sans","Onest","MiSans","Source Han Sans SC","Noto Sans CJK SC","PingFang SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Red Hat Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ln-panel:#f4f4f4; --ln-panel-line:transparent; --ln-chip:var(--coco-black); --ln-chip-ink:#ffffff;
  --ln-pill-line:#d3d3d3; --ln-hover:rgba(19,20,21,.05); --ln-well:#e7e7e7;
  --ln-play:#ffffff; --ln-play-ink:var(--coco-black); --ln-vtag:#ffffff; --ln-vtag-ink:var(--coco-black);
  --ln-brand:var(--coco-brand-blue); --ln-brand-wash:var(--coco-light-blue);
  --ln-sec-num:var(--ink); --ln-sec-bar:var(--ln-brand);
  --ln-r:12px; --ln-pad:28px; --ln-ease:cubic-bezier(.16,.84,.24,1);
}
@media (prefers-color-scheme: dark){
  :root:root:not([data-theme="light"]){
    --bg:var(--coco-black); --surface:#202123; --sunk:#27282a; --wash:#1b1c1e;
    --ink:#f4f4f4; --ink-2:#c9c9c9; --muted:#8f8f8f; --faint:#616161;
    --rule:#2c2d2f; --rule-2:#3a3b3d; --grid:#2d2e30;
    --accent:#f4f4f4; --accent-ink:#f4f4f4;
    --demo:#3d98f2; --self:#e2601f; --guide:#15a271; --body:#6a46e2;
    --s2:#9aa0e6;
    --screen:#0b0c0d; --screen-2:#1f2022; --screen-ink:#f4f4f4; --screen-muted:#9e9e9e;
    --note-bg:#2b2510; --note-ink:#f1da8c; --note-rule:#6b5b1c;
    --shadow:0 0 0 1px rgba(255,255,255,.07),0 14px 34px -10px rgba(0,0,0,.75);
    --serif:"OPPO Sans 4.0","OPPO Sans","Onest","MiSans","Source Han Sans SC","Noto Sans CJK SC","PingFang SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
    --sans:"OPPO Sans 4.0","OPPO Sans","Onest","MiSans","Source Han Sans SC","Noto Sans CJK SC","PingFang SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
    --mono:"Red Hat Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
    --ln-panel:#1b1c1e; --ln-panel-line:rgba(255,255,255,.055); --ln-chip:#f4f4f4; --ln-chip-ink:var(--coco-black);
    --ln-pill-line:#3d3e41; --ln-hover:rgba(255,255,255,.06); --ln-well:#27282a;
    --ln-play:#ffffff; --ln-play-ink:var(--coco-black); --ln-vtag:#ffffff; --ln-vtag-ink:var(--coco-black);
    --ln-brand:var(--coco-brand-blue); --ln-brand-wash:color-mix(in srgb,var(--coco-brand-blue) 26%,transparent);
    --ln-sec-num:var(--ln-brand); --ln-sec-bar:var(--ink);
    --ln-r:12px; --ln-pad:28px; --ln-ease:cubic-bezier(.16,.84,.24,1);
    color-scheme:dark;
  }
}
:root:root[data-theme="dark"]{
  --bg:var(--coco-black); --surface:#202123; --sunk:#27282a; --wash:#1b1c1e;
  --ink:#f4f4f4; --ink-2:#c9c9c9; --muted:#8f8f8f; --faint:#616161;
  --rule:#2c2d2f; --rule-2:#3a3b3d; --grid:#2d2e30;
  --accent:#f4f4f4; --accent-ink:#f4f4f4;
  --demo:#3d98f2; --self:#e2601f; --guide:#15a271; --body:#6a46e2;
  --s2:#9aa0e6;
  --screen:#0b0c0d; --screen-2:#1f2022; --screen-ink:#f4f4f4; --screen-muted:#9e9e9e;
  --note-bg:#2b2510; --note-ink:#f1da8c; --note-rule:#6b5b1c;
  --shadow:0 0 0 1px rgba(255,255,255,.07),0 14px 34px -10px rgba(0,0,0,.75);
  --serif:"OPPO Sans 4.0","OPPO Sans","Onest","MiSans","Source Han Sans SC","Noto Sans CJK SC","PingFang SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --sans:"OPPO Sans 4.0","OPPO Sans","Onest","MiSans","Source Han Sans SC","Noto Sans CJK SC","PingFang SC",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Red Hat Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --ln-panel:#1b1c1e; --ln-panel-line:rgba(255,255,255,.055); --ln-chip:#f4f4f4; --ln-chip-ink:var(--coco-black);
  --ln-pill-line:#3d3e41; --ln-hover:rgba(255,255,255,.06); --ln-well:#27282a;
  --ln-play:#ffffff; --ln-play-ink:var(--coco-black); --ln-vtag:#ffffff; --ln-vtag-ink:var(--coco-black);
  --ln-brand:var(--coco-brand-blue); --ln-brand-wash:color-mix(in srgb,var(--coco-brand-blue) 26%,transparent);
  --ln-sec-num:var(--ln-brand); --ln-sec-bar:var(--ink);
  --ln-r:12px; --ln-pad:28px; --ln-ease:cubic-bezier(.16,.84,.24,1);
  color-scheme:dark;
}
@media (max-width:640px){:root:root{--ln-pad:16px}}

:root:root body{font-size:17px;line-height:1.7;letter-spacing:-.006em}
:root:root ::selection{background:var(--ln-brand-wash)}
:root:root a{text-decoration-color:color-mix(in srgb,var(--ink) 28%,transparent);text-underline-offset:3px}
:root:root a:hover{text-decoration-color:var(--ink)}
:root:root a:focus-visible,:root:root button:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}

:root:root .site{background:color-mix(in srgb,var(--bg) 88%,transparent)}
:root:root .brand{font:650 14px var(--sans);letter-spacing:-.01em;gap:12px}
:root:root .brand .logo{display:block;height:22px;width:auto}
:root:root .brand .logo-w{display:none}
@media (prefers-color-scheme: dark){:root:root:not([data-theme="light"]) .brand .logo-c{display:none}:root:root:not([data-theme="light"]) .brand .logo-w{display:block}}
:root:root[data-theme="dark"] .brand .logo-c{display:none}
:root:root[data-theme="dark"] .brand .logo-w{display:block}
:root:root .here{font:500 13px var(--sans);border-radius:6px}
:root:root .here:hover{background:var(--ln-hover)}
:root:root .btn{font:600 10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink);border:0;box-shadow:inset 0 0 0 1px var(--ln-pill-line);height:28px;padding:0 12px;transition:background .15s,color .15s,box-shadow .15s}
:root:root .btn:hover{background:var(--ink);color:var(--bg);box-shadow:inset 0 0 0 1px var(--ink)}
:root:root .btn.icon{width:28px;padding:0}
:root:root .btn[aria-pressed="true"].notes{background:var(--note-bg);color:var(--note-ink);box-shadow:inset 0 0 0 1px var(--note-rule)}
:root:root .progress i{background:var(--ln-brand)}
:root:root .sheet{padding:12px 20px 22px}

@media (min-width:1240px){
  :root:root{--rail:236px}
  :root:root .page{padding-left:0;padding-right:var(--rail)}
  :root:root .toc-rail{left:auto;right:24px;width:208px;top:calc(var(--header-h) + 44px);transform:none}
}
:root:root .toc-h{font:600 10px var(--mono);letter-spacing:.12em;color:var(--ink);padding-bottom:10px;margin-bottom:10px;border-bottom:1px solid var(--rule)}
:root:root .toc-h .pct{color:var(--muted)}
:root:root .toc>ol{border-left:0}
:root:root .toc a{margin-left:0;padding:4px 4px 4px 12px;border-left:2px solid transparent;color:var(--muted);font:500 13px/1.4 var(--sans);letter-spacing:-.005em}
:root:root .toc a .n{font:500 10.5px var(--mono);color:var(--faint);min-width:14px}
:root:root .toc a:hover{color:var(--ink)}
:root:root .toc a.past{color:var(--ink-2)}
:root:root .toc a.on{color:var(--ink);font-weight:650;border-left-color:var(--ink)}
:root:root .toc a.on .n{color:var(--ink)}
:root:root .toc ol ol a{padding-left:24px;font-size:12.5px;gap:8px}
:root:root .toc ol ol a::before{width:6px;height:6px;border-radius:1px;opacity:.5}
:root:root .toc .grp{font:600 9.5px var(--mono)}
:root:root .rail-foot{border-top-color:var(--rule);font:500 12px var(--sans)}

:root:root .hero{padding-block:clamp(52px,8.5vw,112px) 0}
:root:root .epigraph{margin:0 0 44px;max-width:31em}
:root:root .epigraph blockquote{font:500 clamp(17px,1.6vw,19px)/1.42 var(--sans);font-style:normal;letter-spacing:-.014em;color:var(--ink)}
:root:root .epigraph .by{margin-top:10px;font:400 13px/1.45 var(--sans);color:var(--muted)}
:root:root .epigraph .by i{font-style:normal}
:root:root h1{font-family:var(--sans);font-weight:800;font-size:clamp(52px,9.2vw,122px);line-height:.94;letter-spacing:-.052em}
:root:root h1 em{font-style:normal;display:inline-block;position:relative;padding-bottom:.17em}
:root:root h1 em::after{content:"";position:absolute;left:.03em;right:.02em;bottom:0;height:max(5px,.07em);
  background:linear-gradient(90deg,var(--demo) 0 24%,transparent 0 25.333%,var(--self) 0 49.333%,transparent 0 50.666%,var(--guide) 0 74.666%,transparent 0 76%,var(--body) 0);
  animation:ln-seg .56s steps(4,end) .3s both}
@keyframes ln-seg{from{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}
:root:root .hero-row{margin-top:44px;padding-top:0;border-top:0;gap:30px}
:root:root .standfirst{font:400 clamp(19px,1.9vw,22px)/1.52 var(--sans);color:var(--ink-2);letter-spacing:-.012em}
:root:root .meta{padding-top:16px;border-top:1px solid var(--rule);font:600 14px/1.45 var(--sans);color:var(--ink);gap:3px 44px}
:root:root .meta dt{font:500 10px/1.9 var(--mono);letter-spacing:.12em;color:var(--muted)}

:root:root h2{font-family:var(--sans);font-weight:750;font-size:clamp(31px,3.7vw,45px);line-height:1.06;letter-spacing:-.038em;margin:140px 0 26px}
:root:root h2 .sec{align-items:flex-end;gap:18px;margin-bottom:22px;font:250 clamp(84px,10vw,128px)/.76 var(--sans);letter-spacing:-.06em;text-transform:none;color:var(--ink)}
:root:root h2 .sec b{font-weight:200;color:var(--ln-sec-num);font-variant-numeric:lining-nums tabular-nums;display:block;margin-left:-.06em}
:root:root h2 .sec b::before{content:none}
:root:root h2 .sec::after{flex:0 0 44px;height:3px;margin-bottom:0;background:var(--ln-sec-bar);transform-origin:0 50%}
:root:root #refs h2{font-size:clamp(28px,3vw,34px)}
:root:root h3{font-family:var(--sans);font-weight:700;font-size:20px;letter-spacing:-.022em}
:root:root section>p,:root:root section>ul{color:var(--ink-2)}
:root:root .lead-in{font-weight:750;color:var(--ink);letter-spacing:-.012em}
:root:root .subsec h3 .sn{font:600 11px var(--mono);letter-spacing:.06em;color:var(--muted);margin-right:12px}
:root:root .cite{font-size:.86em}
:root:root .cite a{color:var(--ink);font-weight:650;border-radius:3px}
:root:root .cite a:hover,:root:root .cite a:focus-visible{background:var(--ln-hover)}
:root:root .cite-flash{animation:ln-flash 1.4s var(--ln-ease)}
@keyframes ln-flash{0%,35%{background:var(--ln-brand-wash)}100%{background:transparent}}

:root:root .cap{margin-top:112px;padding-top:0;border-top:0}
:root:root .cap::before{display:none}
:root:root .cap h3{font:750 clamp(27px,3vw,34px)/1.1 var(--sans);letter-spacing:-.035em}
:root:root .cap h3 .sn{display:flex;align-items:flex-end;gap:14px;margin-bottom:16px;font:200 clamp(40px,4.4vw,54px)/.8 var(--sans);letter-spacing:-.05em;color:var(--ink)}
:root:root .cap h3 .sn::before{width:12px;height:12px;border-radius:2px;margin:0 0 .04em;vertical-align:0;order:2}
:root:root .cap .fam{font:600 10.5px var(--mono);letter-spacing:.1em}
:root:root .measure{border-left-width:3px;padding:14px 0 14px 20px}
:root:root .measure b{font:600 10px var(--mono);letter-spacing:.12em}
:root:root .pull{font:700 clamp(24px,2.7vw,30px)/1.24 var(--sans);letter-spacing:-.03em}
:root:root .pull::before{width:44px;height:3px;background:var(--ln-brand)}
:root:root .stat .v,:root:root .key .v{font-weight:800;letter-spacing:-.05em}
:root:root .part-open .pt{font-weight:800;letter-spacing:-.05em}
:root:root ul.clean li::before{border-radius:1px;width:7px;height:7px}
:root:root .didnot b{font-weight:700}

:root:root .fig{margin:48px 0 60px}
:root:root .page>figure>.fig-body{background:var(--ln-panel);border-radius:var(--ln-r);padding:var(--ln-pad);box-shadow:inset 0 0 0 1px var(--ln-panel-line)}
:root:root .page>figure[data-fig^="video"]>.fig-body{background:none;border-radius:0;padding:0;box-shadow:none}
:root:root .page>figure:not([data-fig^="video"])>.fig-body{--bg:var(--ln-panel)}
:root:root .page>figure>.fig-body svg text[paint-order],:root:root .page>figure>.fig-body svg text[style*="paint-order"]{stroke:var(--bg)}
:root:root figcaption{margin:16px 0 0;font:400 14px/1.6 var(--sans);color:var(--muted)}
:root:root figcaption b{font-weight:650;color:var(--ink)}
:root:root figcaption .fn{display:inline-block;margin-right:9px;padding:3px 6px 2px;border-radius:3px;background:var(--ln-chip);color:var(--ln-chip-ink);font:600 10px/1.35 var(--mono);letter-spacing:.08em;vertical-align:1px}
:root:root .fig-head{border-top:0;padding-top:0;margin-bottom:22px}
:root:root .panel-title{font:700 18px/1.3 var(--sans);letter-spacing:-.025em}
:root:root .panel-sub{font:400 13.5px/1.5 var(--sans)}
:root:root .fama-pt,:root:root .perc6-h{font-family:var(--sans);font-weight:700;letter-spacing:-.02em}
:root:root .perc6-h b{font:600 10.5px var(--mono);letter-spacing:.06em;color:var(--muted)}
:root:root .legend{font:500 12.5px var(--sans);gap:6px 18px}
:root:root .legend i.sq{border-radius:2px}
:root:root .seg{background:transparent;padding:0;gap:4px;flex-wrap:wrap}
:root:root .seg button{font:600 12px var(--sans);letter-spacing:-.005em;color:var(--ink-2);padding:5px 12px;border-radius:999px;box-shadow:inset 0 0 0 1px var(--ln-pill-line);transition:background .14s,color .14s,box-shadow .14s}
:root:root .seg button:hover{color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
:root:root .seg button[aria-pressed="true"]{background:var(--ln-chip);color:var(--ln-chip-ink);box-shadow:none}
:root:root .replay{font:600 12px var(--sans);letter-spacing:-.005em;text-transform:none;color:var(--ink);border:0;box-shadow:inset 0 0 0 1px var(--ln-pill-line);border-radius:999px;padding:5px 11px 5px 9px;transition:background .14s,color .14s,box-shadow .14s,opacity .3s}
:root:root .replay:hover{background:var(--ln-chip);color:var(--ln-chip-ink);box-shadow:none}
:root:root .data-tgl{font:600 12px var(--sans);letter-spacing:-.005em;text-transform:none;color:var(--ink-2);gap:8px;margin-top:16px}
:root:root .data-tgl::before{display:grid;place-items:center;width:15px;height:15px;border-radius:3px;box-shadow:inset 0 0 0 1px currentColor;font:600 11px/1 var(--mono)}
:root:root .data-tgl:hover{color:var(--ink)}
:root:root .data-tgl[aria-expanded="true"]::before{background:var(--ink);color:var(--bg);box-shadow:none}
:root:root .data-tbl{background:var(--surface);border-radius:6px;padding:4px 6px}
:root:root .data-tbl tr:last-child td{border-bottom:0}

:root:root .fig svg [font-family="var(--serif)"],:root:root .fig svg [style*="--serif"]{font-weight:750;letter-spacing:-.03em;font-style:normal}
:root:root .axis-t{font:500 12px var(--sans);letter-spacing:0;text-transform:none;fill:var(--muted)}
:root:root .fig svg path.ln{stroke-linecap:round;stroke-linejoin:round}
:root:root .fig svg path.ln[stroke-width="2.25"],:root:root .fig svg path.ln[stroke-width="2.5"]{stroke-width:2.6}
:root:root .eff-an text[font-family="var(--serif)"][font-size="18"]{font-size:15.5px}
:root:root .media-call .v{font:800 34px/1 var(--sans);letter-spacing:-.05em}
:root:root .media-call .l{font:500 12px/1.35 var(--sans);letter-spacing:-.005em;text-transform:none;margin-top:8px}
:root:root .mx-cv{font:800 25px var(--sans);letter-spacing:-.045em}
:root:root .mx-g{font:600 10px var(--mono);letter-spacing:.1em}
:root:root .mx-r b,:root:root .mx-l b{font:700 12.5px var(--sans);font-variant-numeric:tabular-nums}
:root:root .famb-steps .v{font-weight:800;letter-spacing:-.05em}
:root:root .famb-lat .v{font-weight:800;letter-spacing:-.045em}
:root:root .famb-steps .k{font:600 10px var(--mono);letter-spacing:.1em}
:root:root .famb-steps .m{border-radius:0;background:var(--ln-well);height:4px}
:root:root .famb-steps .m .f{border-radius:0}
:root:root .fama-tbl td.fama-ch{font:700 16.5px/1.3 var(--sans);letter-spacing:-.022em}
:root:root .fama-fam b,:root:root .fama-mode{font:600 10px var(--mono);letter-spacing:.1em}
:root:root .s7-ctx em,:root:root .s7n-tgh em{font-family:var(--sans)}
:root:root .s7-gp b,:root:root .s7-cap{font-family:var(--sans)}
:root:root .s7-tag{border-radius:4px;border-color:var(--rule-2)}
:root:root .s7-steps button{font:600 11.5px/1 var(--sans);letter-spacing:-.005em;text-transform:none;border-radius:999px;border-color:transparent;box-shadow:inset 0 0 0 1px var(--ln-pill-line);padding:3px 11px 3px 3px;background:transparent}
:root:root .s7-steps button i{background:var(--ln-well)}
:root:root .s7-steps button.cur{border-color:transparent;background:var(--ln-chip);color:var(--ln-chip-ink);box-shadow:none}
:root:root .s7-steps button.cur i{background:var(--ln-chip-ink);color:var(--ln-chip)}
:root:root .s7-say{border-top-color:var(--rule-2)}
:root:root .cx-lab em{border-radius:3px}
:root:root .cx-bar{background:var(--ln-well);border-radius:8px}
:root:root .cx-row.ep .cx-bar,:root:root .cx-bar.ep{background:var(--surface);box-shadow:inset 0 0 0 1.5px var(--ink)}
:root:root .famb13-ladder{border-right-color:var(--rule-2)}
:root:root .famb-lat,:root:root .famb13-clips{border-top-color:var(--rule-2)}
:root:root .famb14-hint,:root:root .media-step,:root:root .media-t{font-family:var(--mono);letter-spacing:.04em}
:root:root .famb14-in{min-width:calc(var(--text) - 2*var(--ln-pad))}

:root:root .vid{border-radius:10px}
:root:root .vid .tag{top:10px;left:10px;gap:6px;padding:4px 7px 4px 6px;border-radius:4px;background:var(--ln-vtag);color:var(--ln-vtag-ink);box-shadow:none;
  font:600 11px/1.1 var(--sans);letter-spacing:-.005em;text-transform:none;-webkit-backdrop-filter:none;backdrop-filter:none}
:root:root .vid .tag::before,:root:root .vid .tag i{border-radius:1px}
:root:root .vid .tc{font:500 10.5px/1 var(--mono);color:var(--screen-ink);opacity:.8}
:root:root .vid .play{background:var(--ln-play);box-shadow:0 4px 14px -4px rgba(0,0,0,.5);-webkit-backdrop-filter:none;backdrop-filter:none;transition:transform .2s var(--ln-ease)}
:root:root .vid .play::after{background:var(--ln-play-ink)}
:root:root .vid:hover .play{transform:scale(1.06);background:var(--ln-play)}
:root:root .vid .shot{font-family:var(--sans);font-weight:450;opacity:.8}
:root:root .vid .scrub{border-radius:0;background:rgba(255,255,255,.2)}
:root:root .vid .scrub::before{border-radius:0;opacity:.95;transition:width .3s var(--ln-ease)}
:root:root .vid:hover .scrub::before{width:100%;transition:width 9s linear}
:root:root .vid .scrub:not(:has(i))::after{border-radius:1px;transition:left .3s var(--ln-ease)}
:root:root .vid:hover .scrub:not(:has(i))::after{left:calc(100% - 6px);transition:left 9s linear}
:root:root .vid .pip{border-radius:6px}
:root:root .vid .pip span{font:600 8.5px/1.2 var(--mono)}
@container (max-width:300px){
  :root:root .vid .tag{top:7px;left:7px;gap:5px;font-size:9.5px;padding:3px 6px 3px 5px;border-radius:3px}
  :root:root .vid .tag::before{width:5px;height:5px}
  :root:root .vid:has(.shot):not(:has(.pip)) .play{top:7px;left:auto;right:7px;width:26px;height:26px;margin:0}
  :root:root .vid:has(.shot):not(:has(.pip)) .play::after{width:8px;height:9px}
  :root:root .vid:has(.shot):not(:has(.pip)) .tag{max-width:calc(100% - 46px)}
}
@container (min-width:640px){:root:root .vid .tag{top:16px;left:16px;font-size:12.5px;padding:5px 9px 5px 8px;border-radius:5px}}
:root:root .pv-fr{font-family:var(--mono);font-weight:600}
:root:root .pv-clip b,:root:root .pv-case>b{font-weight:650;letter-spacing:-.01em}
:root:root .pv-clip img{border-radius:6px;box-shadow:none;opacity:.55}
:root:root .pv-clip:hover img{opacity:.85}
:root:root .pv-clip[aria-pressed="true"] img{opacity:1;box-shadow:0 0 0 2px var(--bg),0 0 0 3.5px var(--ink)}
:root:root .media-hv{border-radius:12px}
:root:root .clip-cap{font:400 13px/1.5 var(--sans);margin-top:12px}
:root:root .clip-cap b{font-weight:700;letter-spacing:-.012em}
:root:root .clip-cap .n{font:500 11.5px var(--mono)}
:root:root .clips{gap:28px 22px}
:root:root .media-kinds .media-k{font:600 10px var(--mono);letter-spacing:.1em}
:root:root .page .reel-track{margin-right:0!important;padding-right:0!important}
@media (max-width:600px){:root:root .reel{--card:calc(100cqw - 46px)}:root:root .reel:not(.at-end) .reel-track{--fr:22px}}
:root:root .reel-bar .reel-l,:root:root .reel-count{font:600 10px var(--mono);letter-spacing:.1em}
:root:root .reel-btn{border:0;box-shadow:inset 0 0 0 1px var(--ln-pill-line);width:30px;height:30px}
:root:root .reel-btn:hover:not(:disabled){background:var(--ln-chip);color:var(--ln-chip-ink);box-shadow:none}
:root:root .media-dm-tabs{box-shadow:none;gap:0 4px;margin:-2px 0 24px;padding:1px}
:root:root .media-dm-tab{padding:7px 13px;border-radius:999px;box-shadow:inset 0 0 0 1px var(--ln-pill-line);font:600 13px/1.2 var(--sans);letter-spacing:-.01em;color:var(--ink-2);transition:background .14s,color .14s,box-shadow .14s}
:root:root .media-dm-tab::after{display:none}
:root:root .media-dm-tab:hover{color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
:root:root .media-dm-tab[aria-selected="true"]{background:var(--ln-chip);color:var(--ln-chip-ink);box-shadow:none}
:root:root .media-dm-tab .n{font:500 10.5px/1 var(--mono);color:inherit;opacity:.55}
:root:root .media-dm-tab[aria-selected="true"] .n{color:inherit;opacity:.7}
:root:root .media-dm-h{font:600 10px/1 var(--mono);letter-spacing:.1em}
:root:root .media-dm-panel{animation:ln-panel .32s var(--ln-ease) both}
@keyframes ln-panel{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
:root:root .media-o{border-radius:3px;font:600 10px/1.25 var(--mono);letter-spacing:.06em}
:root:root .media-tries i{border-radius:2px}
:root:root figure[data-fig="video4"] .v4-how{border-top-color:var(--rule-2)}
:root:root figure[data-fig="video4"] .v4-how .k{font:600 10px var(--mono);letter-spacing:.1em}

:root:root .tbl-wrap{border-top:2px solid var(--ink)}
:root:root th{font:600 10px var(--mono);letter-spacing:.1em;color:var(--muted)}
:root:root td.num{font:500 13px var(--mono)}
:root:root .win{font-weight:750}
:root:root .tip{border-radius:6px;padding:8px 11px;font:400 12.5px/1.5 var(--sans)}
:root:root .tip b{font-weight:700}
:root:root .refpop{border:0;border-radius:8px;box-shadow:var(--shadow)}
:root:root .refpop b{font:600 10px var(--mono);letter-spacing:.08em}
:root:root .refs{font:400 14px/1.6 var(--sans)}
:root:root .refs a,:root:root .refs .back{color:var(--ink)}
:root:root .refs li::marker{font:500 11.5px var(--mono)}
:root:root .refs li:target,:root:root .refs li.hit{background:var(--ln-brand-wash)}
:root:root #cite{font:600 10.5px var(--mono);letter-spacing:.12em;color:var(--ink)}
:root:root pre.bib{border-radius:var(--ln-r);background:var(--ln-panel);font:400 12.5px/1.7 var(--mono)}
:root:root .bib-wrap .btn{background:var(--bg)}
:root:root footer{padding:28px 32px;border:0;border-radius:var(--ln-r);background:var(--coco-light-blue);color:var(--coco-black);align-items:center;gap:16px 28px;font:500 10.5px var(--mono);letter-spacing:.1em}
:root:root footer img{display:block;height:28px;width:auto}
@media (max-width:640px){:root:root footer{padding:24px}}
:root:root .note{border-left-width:3px;border-radius:0 6px 6px 0;font:400 13.5px/1.65 var(--sans)}
:root:root .ph{border-radius:3px}

:where(:root:root) .reveal{opacity:0;transform:translateY(12px);transition:opacity .36s var(--ln-ease),transform .42s var(--ln-ease)}
:where(:root:root) .reveal.in{opacity:1;transform:none}
:where(:root:root) .anim .bar{transition:transform .5s var(--ln-ease)}
:where(:root:root) .anim .hb{transition:transform .5s var(--ln-ease)}
:where(:root:root) .anim .ln{transition:stroke-dashoffset .9s var(--ln-ease)}
:where(:root:root) .anim .fade{transition:opacity .3s ease .55s}
:where(:root:root) .anim .rad{transition:transform .55s var(--ln-ease),opacity .3s}
:where(:root:root) .anim.in .bar,:where(:root:root) .anim.in .hb{transform:none}
:where(:root:root) .st-anim [data-step]{transition:opacity .28s ease,transform .36s var(--ln-ease),clip-path .5s var(--ln-ease),filter .28s}
:where(:root:root) .st-anim [data-step]:not(.st-on){opacity:0;transform:translateY(10px)}
:root:root h2.ln-pre{opacity:0;transform:translateY(10px)}
:root:root h2.ln-pre .sec b{transform:translateY(14px)}
:root:root h2.ln-pre .sec::after{transform:scaleX(0)}
:root:root h2.ln-in{opacity:1;transform:none;transition:opacity .34s var(--ln-ease) .06s,transform .4s var(--ln-ease) .06s}
:root:root h2.ln-in .sec b{transform:none;transition:transform .4s var(--ln-ease)}
:root:root h2.ln-in .sec::after{transform:none;transition:transform .32s var(--ln-ease) .14s}
@media (prefers-reduced-motion: reduce){:root:root h2.ln-pre,:root:root h2.ln-pre .sec b,:root:root h2.ln-pre .sec::after{opacity:1;transform:none}}
:root:root .vid.live .scrub::before,:root:root .vid.live:hover .scrub::before{width:var(--p,0%);transition:none}

.ph{background:none;color:inherit;padding:0}


/* Keep the two destinations together, with Research aligned to the logo's lettering. */
.site-identity{display:flex;align-items:center;gap:16px;flex:none}
.site-identity .brand{min-height:44px;flex:none}
.identity-separator{width:1px;height:16px;flex:none;background:var(--rule-2)}
.research-return{display:inline-flex;align-items:center;min-height:44px;flex:none;color:var(--ink-2);text-decoration:none;font:500 15px/1 var(--sans);white-space:nowrap}
/* The font's visible letters sit slightly above the centre of its line box. */
.research-return span{transform:translateY(1px)}
.research-return:hover{color:var(--ink);text-decoration:underline}
.site-actions{flex:none}
@media (max-width:520px){
  :root:root .site-identity{gap:10px}
  :root:root .site-identity .brand{min-width:0;overflow:hidden}
  :root:root .site-identity .brand .logo{height:18px;width:auto}
  :root:root .here{padding-inline:0}
}