:where(.t75-main,.top,.foot) :is(p,figure,dl,dd,blockquote,hr,ul,ol,h1,h2,h3,h4){margin:revert}:where(.t75-main,.top,.foot) :is(ul,ol){padding:revert;list-style:revert}:where(.t75-main,.top,.foot) a{text-decoration:revert}:where(.t75-main,.top,.foot) :is(h1,h2,h3,h4){font-size:revert;font-weight:revert}:where(.t75-main,.top,.foot) svg{display:inline;vertical-align:baseline;max-width:revert;height:revert}:where(.t75-main,.top,.foot) img{max-width:revert;height:revert;display:revert}:where(.t75-main,.top,.foot) table{text-indent:revert;border-color:revert}
:root{--bg:#F7F9FC;--surface:#fff;--ink:#0F172A;--muted:#475569;--faint:#64748B;--line:#E2E8F0;
--accent:#1D4ED8;--accent-h:#1E40AF;--accent-p:#1E3A8A;--accent-w:#EEF3FF;--safe:#15803D;--caution:#A16207;--stop:#B91C1C;
--r-btn:10px;--r-card:16px;--wide:1184px;--text:68ch;--ease:cubic-bezier(.2,.7,.2,1);
--f-d:'Space Grotesk',system-ui,sans-serif;--f-b:'IBM Plex Sans',system-ui,sans-serif;--f-m:'JetBrains Mono',ui-monospace,monospace}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 var(--f-b);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--accent-h)}
:focus-visible{outline:3px solid #93B4FF;outline-offset:2px;border-radius:6px}
.wrap{max-width:var(--wide);margin:0 auto;padding:0 24px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:12px;background:#fff;padding:10px 14px;z-index:9}
.top{position:sticky;top:0;z-index:5;background:rgba(247,249,252,.86);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font:700 22px/1 var(--f-d);letter-spacing:-.02em}
.logo b{background:var(--accent);color:#fff;font:600 15px/1 var(--f-d);padding:9px 8px;border-radius:9px}
.nav{display:flex;gap:4px;margin:0;padding:0;list-style:none}
.nav a{display:block;padding:10px 10px;color:#334155;text-decoration:none;font-weight:500;font-size:16px;border-radius:8px;min-height:44px}
.nav a:hover{background:#EEF2F7;color:var(--ink)}
.nav a[aria-current]{color:var(--ink);background:#E9EEF6}
.top .cta{margin-left:auto}
.menu{display:none;margin-left:auto}
.menu summary{list-style:none;display:flex;align-items:center;gap:8px;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;font-weight:500;cursor:pointer}
.menu summary::-webkit-details-marker{display:none}
.menu ul{position:absolute;right:16px;top:62px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;margin:0;list-style:none;min-width:240px;box-shadow:0 20px 40px -20px rgba(15,23,42,.3)}
.menu ul a{display:block;padding:12px;color:var(--ink);text-decoration:none;border-radius:8px}
.menu ul a:hover{background:#F1F5F9}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:var(--r-btn);
font:600 17px/1 var(--f-b);text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background .15s var(--ease),transform .08s var(--ease),box-shadow .15s}
.btn-p{background:var(--accent);color:#fff}
.btn-p:hover{background:var(--accent-h);color:#fff}
.btn-p:active{background:var(--accent-p);transform:translateY(1px)}
.btn-s{background:#fff;color:var(--accent);border-color:#BFD0F7}
.btn-s:hover{background:var(--accent-w);color:var(--accent-h)}
.btn-s:active{transform:translateY(1px)}
.btn[aria-disabled=true]{opacity:.5;pointer-events:none}
.btn-sm{min-height:44px;padding:0 18px;font-size:15.5px}
h1,h2,h3{font-family:var(--f-d);letter-spacing:-.02em;color:var(--ink);margin:0}
h1{font-size:56px;line-height:1.06;font-weight:600}
h2{font-size:36px;line-height:1.12;font-weight:600}
h3{font-size:20px;line-height:1.3;font-weight:600;letter-spacing:-.01em}
.kicker{font:500 15px/1.4 var(--f-b);color:var(--accent);margin:0 0 16px}
.lead{font-size:20px;line-height:1.7;color:#334155;max-width:62ch;margin:24px 0 0}
.note{font-size:14.5px;color:var(--faint);margin:20px 0 0;max-width:60ch}
.sub{color:var(--muted);font-size:17.5px;max-width:60ch;margin:12px 0 0}
.hero{padding:88px 0 56px}
.acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.rule{border:0;border-top:1px solid var(--line);margin:0}
.sec{padding:80px 0}
.sec-h{margin-bottom:36px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px}
.card p{margin:10px 0 0;color:var(--muted);font-size:16.5px;line-height:1.6}
.tile{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:var(--accent-w);color:var(--accent);margin-bottom:18px}
.tile.t-stop{background:#FEF2F2;color:var(--stop)}
.tile.t-caution{background:#FEF7E6;color:var(--caution)}
.tile.t-safe{background:#ECFDF3;color:var(--safe)}
a.card{display:block;text-decoration:none;color:inherit;transition:border-color .15s,background .15s,transform .08s}
a.card:hover{border-color:#BFD0F7}
a.card:active{transform:translateY(1px)}
a.card .more{display:inline-block;margin-top:16px;color:var(--accent);font-weight:600;font-size:15.5px}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:0;padding:0;list-style:none}
.steps li{position:relative;padding-top:56px}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;
background:#fff;border:1px solid var(--line);display:grid;place-items:center;font:600 16px/1 var(--f-d);color:var(--accent)}
.steps li::after{content:"";position:absolute;top:20px;left:52px;right:-8px;height:1px;background:var(--line)}
.steps li:last-child::after{display:none}
.steps p{margin:8px 0 0;color:var(--muted);font-size:16px}
.boundary{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;background:#fff;border:1px solid var(--line);border-left:4px solid var(--stop);border-radius:var(--r-card);padding:28px}
.boundary p{margin:8px 0 0;color:var(--muted)}
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:block;position:relative;padding:22px 40px 22px 0;font:600 18.5px/1.4 var(--f-b);min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:22px;font:400 26px/1 var(--f-b);color:var(--faint);transition:transform .15s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 22px;color:var(--muted);max-width:68ch}
.foot{border-top:1px solid var(--line);padding:48px 0 56px;margin-top:40px;color:var(--muted);font-size:15px}
.foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.foot ul{list-style:none;margin:10px 0 0;padding:0}
.foot li{margin:6px 0}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--ink);text-decoration:underline}
.foot h2{font:600 15px/1.4 var(--f-b);letter-spacing:0;color:var(--ink)}
.fine{grid-column:1/-1;border-top:1px solid var(--line);padding-top:20px;font-size:14px;color:var(--faint)}
.crumbs{font-size:15px;color:var(--faint);margin:0 0 28px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.doc{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:64px;padding:64px 0 40px}
.art{max-width:var(--text)}
.art h2{font-size:30px;margin:64px 0 16px;scroll-margin-top:90px}
.art h3{margin:32px 0 8px}
.art p,.art li{color:#1E293B}
.art ol.num{padding-left:0;list-style:none;counter-reset:n}
.art ol.num>li{counter-increment:n;position:relative;padding-left:48px;margin:0 0 18px}
.art ol.num>li::before{content:counter(n);position:absolute;left:0;top:1px;width:30px;height:30px;border-radius:50%;background:var(--accent-w);color:var(--accent);font:600 15px/30px var(--f-d);text-align:center}
.callout{border:1px solid #F3D9A4;background:#FFFBF0;border-radius:14px;padding:20px 22px;margin:24px 0}
.callout strong{color:#7A4B00}
.tbl{width:100%;border-collapse:collapse;font-size:16px;margin:16px 0;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.tbl th,.tbl td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-weight:600;background:#F8FAFC}
.src li{margin:8px 0}
.draft{display:inline-block;font-size:13px;font-weight:500;color:var(--caution);background:#FEF7E6;border-radius:6px;padding:2px 8px;margin-left:6px}
.aside{position:sticky;top:92px;align-self:start}
.toc{border-left:2px solid var(--line);padding-left:16px;margin:0;list-style:none;font-size:15px}
.toc a{display:block;padding:7px 0;color:var(--muted);text-decoration:none}
.toc a:hover{color:var(--ink)}
.toc-h{font:600 14px/1.4 var(--f-b);color:var(--ink);margin:0 0 10px}
.owner{margin-top:28px}
.owner p{font-size:15px;color:var(--muted);margin:6px 0 14px}
.picker{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0 8px}
.pick{display:flex;gap:12px;align-items:flex-start;text-align:left;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;font:500 16px/1.4 var(--f-b);color:var(--ink);cursor:pointer;min-height:44px;transition:border-color .15s,background .15s}
.pick:hover{border-color:#BFD0F7}
.pick[aria-pressed=true]{border-color:var(--accent);background:var(--accent-w)}
.pick .ic{flex:none;color:var(--accent);margin-top:1px}
.route{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px}
.route h3{margin:0 0 6px}
.route .when{color:var(--muted);margin:0 0 14px;font-size:16px}
.route ol{margin:0;padding-left:20px}
.route li{margin:6px 0}
.wait{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;color:var(--caution);margin-top:12px}
@media (max-width:1024px){.top .wrap{flex-wrap:wrap;height:auto;padding-top:12px;gap:8px 16px}.top nav{order:3;width:100%;overflow-x:auto;margin:0 -8px;padding-bottom:6px}.nav{flex-wrap:nowrap}.nav a{white-space:nowrap}.doc{grid-template-columns:1fr}.aside{position:static}.grid4{grid-template-columns:repeat(2,1fr)}
.steps{grid-template-columns:1fr 1fr}.steps li::after{display:none}}
@media (max-width:760px){.wrap{padding:0 16px}h1{font-size:38px}h2{font-size:28px}.art h2{font-size:25px}.lead{font-size:18px}
.hero{padding:48px 0 40px}.sec{padding:56px 0}.grid3,.grid2,.grid4,.steps,.picker{grid-template-columns:1fr}
.acts .btn{width:100%}.foot .wrap{grid-template-columns:1fr}.doc{padding-top:36px;gap:32px}.boundary{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
:root{--bg:#F4F6FB}
.card,.boundary,.route,.pick,.tbl{border-color:rgba(15,23,42,.08);background:linear-gradient(180deg,#fff,#FBFCFE);
box-shadow:0 1px 0 #fff inset,0 1px 2px rgba(15,23,42,.05),0 10px 28px -14px rgba(15,23,42,.18)}
.boundary{border-left:4px solid var(--stop)}
a.card:hover{transform:translateY(-2px);box-shadow:0 1px 0 #fff inset,0 2px 4px rgba(15,23,42,.06),0 18px 36px -16px rgba(29,78,216,.28)}
.tile{background:linear-gradient(180deg,#F3F6FF,#E3EAFE);box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(29,78,216,.12),0 4px 10px -6px rgba(29,78,216,.45)}
.tile.t-stop{background:linear-gradient(180deg,#FFF5F5,#FDE4E4);box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(185,28,28,.14)}
.tile.t-caution{background:linear-gradient(180deg,#FFFAEE,#FBEFD2);box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(161,98,7,.16)}
.tile.t-safe{background:linear-gradient(180deg,#F2FDF6,#DDF6E6);box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(21,128,61,.14)}
.btn-p{background:linear-gradient(180deg,#2B5CE6,#1D4ED8);box-shadow:0 1px 0 rgba(255,255,255,.25) inset,0 6px 16px -8px rgba(29,78,216,.6)}
.btn-p:hover{background:linear-gradient(180deg,#2552D6,#1E40AF)}
.btn-s{box-shadow:0 1px 0 #fff inset,0 1px 2px rgba(15,23,42,.05)}
.steps li::before{box-shadow:0 1px 0 #fff inset,0 2px 6px -2px rgba(15,23,42,.15)}
.show{position:relative;margin:0;border-radius:28px;padding:10px;isolation:isolate}
.show-cap{padding:22px 18px 14px;max-width:62ch}
.show-cap h2,.show-cap h3{font-size:22px;line-height:1.3}
.show-cap p{margin:6px 0 0;font-size:17px}
.win{position:relative;border-radius:18px;overflow:hidden;display:grid;grid-template-columns:260px 1fr;min-height:420px}
.win-bar{grid-column:1/-1;display:flex;align-items:center;gap:14px;height:52px;padding:0 16px}
.dots{display:flex;gap:7px}
.dots i{width:11px;height:11px;border-radius:50%;display:block}
.win-title{font:600 15px/1.2 var(--f-b)}
.win-title small{display:block;font:400 13px/1.3 var(--f-b);margin-top:2px}
.side{padding:10px 10px 16px}
.srch{display:flex;align-items:center;gap:8px;height:40px;border-radius:10px;padding:0 12px;font-size:14.5px;margin-bottom:10px}
.side-h{font-size:12.5px;font-weight:600;padding:12px 10px 6px}
.side button{display:flex;align-items:center;gap:10px;width:100%;min-height:44px;padding:0 10px;border:0;border-radius:10px;background:none;font:500 15px/1.3 var(--f-b);text-align:left;cursor:pointer}
.main{padding:22px 26px 26px;display:flex;flex-direction:column;gap:18px}
.ask{align-self:flex-end;max-width:80%;border-radius:14px;padding:12px 16px;font-size:16px;line-height:1.5}
.run{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.run li{display:flex;align-items:center;gap:12px;font-size:16px}
.run .st{flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center}
.cnt{font:500 12.5px/1 var(--f-m);border-radius:999px;padding:5px 9px}
.answer{font-size:16.5px;line-height:1.6;margin:0}
.answer b{font-weight:600}
@media (max-width:1024px){.win{grid-template-columns:1fr}.side{display:flex;gap:6px;overflow-x:auto;padding:4px 10px 12px}.side .srch,.side-h{display:none}
.side button{flex:none;width:auto;padding:0 14px}}
@media (max-width:760px){.show{border-radius:22px;padding:6px}.win{border-radius:16px;min-height:0}.main{padding:16px}.ask{max-width:100%}}
.show{background:#0B0D12;box-shadow:0 0 0 1px rgba(255,255,255,.04) inset,0 30px 80px -40px rgba(15,23,42,.6)}
.show::before{content:"";position:absolute;inset:0;border-radius:inherit;z-index:-1;
background:radial-gradient(60% 50% at 18% 0%,rgba(59,108,255,.45),transparent 70%),radial-gradient(50% 40% at 100% 10%,rgba(255,138,76,.22),transparent 70%)}
.win{background:#16181E;color:#E7E9EE;box-shadow:0 0 0 1px rgba(255,255,255,.07),0 40px 90px -30px rgba(0,0,0,.8)}
.win-bar{border-bottom:1px solid rgba(255,255,255,.07)}
.dots i{background:#3A3E48}
.win-title small{color:#9AA0AE}
.side{background:#121419;border-right:1px solid rgba(255,255,255,.06)}
.srch{background:#1D2027;color:#8D93A1;box-shadow:0 0 0 1px rgba(255,255,255,.06)}
.side-h{color:#7E8493}
.side button{color:#C9CDD6}
.side button:hover{background:#1D2027}
.side button[aria-pressed=true]{background:#262A33;color:#fff;box-shadow:0 0 0 1px rgba(255,255,255,.06)}
.side button .ic{color:#7FA2FF}
.ask{background:#22252D;color:#E7E9EE;box-shadow:0 0 0 1px rgba(255,255,255,.05)}
.run li{color:#C9CDD6}
.run .st{background:#232837;color:#8FB0FF}
.run .st.ok{background:#16301F;color:#6EE7A0}
.run .st.wait{background:#33280F;color:#F5C162}
.cnt{background:#262A33;color:#AEB4C1}
.answer{color:#E7E9EE}
.show-cap h2,.show-cap h3{color:#fff}
.show-cap p{color:#A3A9B6}
.show :focus-visible{outline-color:#7FA2FF}
@media (max-width:1024px){.side{border-right:0;border-bottom:1px solid rgba(255,255,255,.06)}}
.path.path{display:block;margin-top:8px;font:500 14px/1.5 var(--f-m);color:var(--muted);background:#F1F4FA;border-radius:8px;padding:8px 10px;overflow-wrap:anywhere}
.diagram.diagram{margin:24px 0;max-width:460px}
.diagram.diagram figcaption{color:var(--muted);font-size:15.5px;margin-top:8px}
.dg-rail.dg-rail{stroke:#C9D6F5;stroke-width:3}
.dg-dot.dg-dot{fill:var(--accent)}
.dg-mid.dg-mid{fill:var(--caution)}
.dg-end.dg-end{fill:var(--safe)}
.dg-h.dg-h{font:600 16px var(--f-d);fill:var(--ink)}
.dg-t.dg-t{font:400 14px var(--f-b);fill:var(--muted)}
.helper.helper{margin:0 0 24px}
.helper.helper h3{margin:0 0 10px}
.helper.helper label{display:block;font-weight:500;margin-bottom:6px}
.helper.helper input{min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:10px;font:inherit;color:var(--ink);background:#fff}
.helper.helper input:focus-visible{outline:3px solid #93B4FF;outline-offset:2px}
.helper-out.helper-out{margin:12px 0 0;font-weight:600;color:var(--ink)}
.helper-note.helper-note{margin:6px 0 0;font-size:14.5px;color:var(--faint)}
.edge-list.edge-list{padding-left:20px}
.edge-list.edge-list li{margin:0 0 12px}
.faq-block.faq-block{margin-top:8px}
.show .main .ask,.show .main .answer{color:#E7E9EE}
.show .main .answer b,.show .main .ask b{color:#fff}
.art p,.art li,.art a{overflow-wrap:anywhere}
.unverified{display:inline-block;font-size:13.5px;font-weight:500;color:var(--caution);background:#FEF7E6;border-radius:8px;padding:4px 10px;margin:0 0 18px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.list-plain{margin:10px 0 0;padding-left:20px}
.list-plain li{margin:6px 0;color:var(--muted)}
.do-li li::marker{color:var(--safe)}
.never-li li::marker{color:var(--stop)}
.scope3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.scope3 h3{font-size:17px}
.related{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.related a{font-weight:600}
.related span{display:block;color:var(--muted);font-size:15.5px}
.gloss{display:grid;grid-template-columns:repeat(2,1fr);gap:0 32px;margin:16px 0 0}
.gloss div{border-bottom:1px solid var(--line);padding:14px 0}
.gloss dt{font-weight:600}
.gloss dd{margin:4px 0 0;color:var(--muted)}
.gloss div[hidden]{display:none}
.filter{display:flex;flex-direction:column;gap:6px;max-width:360px}
.filter input{min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}
.plat{display:flex;gap:6px;margin-left:auto}
.plat button{min-height:44px;padding:0 12px;border-radius:9px;border:1px solid rgba(255,255,255,.12);background:#1D2027;color:#C9CDD6;font:500 14px var(--f-b);cursor:pointer}
.plat button[aria-pressed=true]{background:#262A33;color:#fff;border-color:rgba(255,255,255,.25)}
.outcome h3{color:#fff;font-size:20px}
.outcome p{color:#A3A9B6;margin:6px 0 14px}
.outcome a{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:10px;background:#2B5CE6;color:#fff;font-weight:600;text-decoration:none}
.stops{border-top:1px solid rgba(255,255,255,.08);padding-top:14px;margin-top:18px}
.stops p{color:#A3A9B6;font-size:15px;margin:6px 0}
.stops strong{color:#E7E9EE}
.cols{columns:3 260px;column-gap:40px}
.cols section{break-inside:avoid;margin:0 0 28px}
.cols h3{font-size:17px;margin:0 0 8px}
.cols ul{list-style:none;padding:0;margin:0}
.cols li{margin:0 0 10px}
.cols li span{display:block;color:var(--muted);font-size:15px}
.posts{list-style:none;padding:0;margin:0}
.posts li{border-bottom:1px solid var(--line);padding:22px 0}
.posts h2{font-size:22px;margin:0}
.posts h2 a{color:var(--ink);text-decoration:none}
.posts h2 a:hover{color:var(--accent)}
.posts p{margin:6px 0 0;color:var(--muted)}
.posts .rt{font-size:14.5px;color:var(--faint);margin-top:8px}
.posts li:first-child h2{font-size:28px}
.post-meta{color:var(--faint);font-size:15px;margin:16px 0 0}
@media (max-width:760px){.split,.scope3,.gloss{grid-template-columns:1fr}.plat{margin-left:0}
.stack thead{display:none}.stack,.stack tbody,.stack tr,.stack td{display:block;width:100%}.stack tr{border-bottom:1px solid var(--line);padding:10px 0}.stack td{border:0;padding:4px 14px}}