:root{
  --primary:#376e78; --primary-dark:#2b565e; --primary-tint:#eaf2f3; --primary-100:#d6e6e8;
  --ink:#16232a; --text:#243139; --muted:#5b6670; --faint:#6b737d;
  --border:#e3e7ec; --border-soft:#eef1f4; --bg:#f6f8f9; --surface:#ffffff;
  --sand:#f3f0e9;
  --font:'Instrument Sans',system-ui,sans-serif;
  --shadow-sm:0 1px 2px rgba(16,24,40,.04);
}
.docs-body,.docs-body *,.docs-body *::before,.docs-body *::after{box-sizing:border-box;}
.docs-body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;}
html,body{overflow-x:hidden;}
.docs-body a{color:var(--primary);text-decoration:none;}
.docs-body a:hover{color:var(--primary-dark);}
.docs-body h1,.docs-body h2,.docs-body h3,.docs-body h4{margin:0;font-weight:700;letter-spacing:-.02em;color:var(--ink);line-height:1.15;}
.docs-body ::selection{background:var(--primary-100);}

.docs-body{scrollbar-width:thin;scrollbar-color:#a7b2b7 transparent;}
.docs-body ::-webkit-scrollbar{width:10px;height:10px;}
.docs-body ::-webkit-scrollbar-track{background:transparent;}
.docs-body ::-webkit-scrollbar-thumb{background:#a7b2b7;border-radius:999px;border:3px solid var(--bg);}
.docs-body ::-webkit-scrollbar-thumb:hover{background:#8b969b;}

.docmenu{display:none;position:fixed;top:calc(var(--header-h) + 12px);right:14px;left:auto;z-index:100;height:44px;padding:0 14px;gap:8px;border:1px solid var(--border);border-radius:11px;background:var(--surface);align-items:center;justify-content:center;cursor:pointer;color:var(--ink);font-family:var(--font);font-size:13.5px;font-weight:600;box-shadow:var(--shadow-sm);}
.docmenu svg{width:17px;height:17px;flex:none;}
.docmenu.is-hidden{opacity:0;pointer-events:none;}

.topbar{display:flex;align-items:center;justify-content:center;padding:22px 30px 4px;background:transparent;border-bottom:none;max-width:1240px;margin:0 auto;}
.topbar__search{position:relative;display:flex;align-items:center;gap:11px;width:100%;max-width:none;border:1px solid var(--border);border-radius:12px;background:var(--surface);padding:11px 16px;color:var(--faint);cursor:text;box-shadow:var(--shadow-sm);transition:border-color .14s,box-shadow .14s;}
.topbar__search:focus-within{border-color:var(--primary-100);box-shadow:0 2px 10px rgba(20,40,50,.06);}
.topbar__search svg{width:18px;height:18px;flex:none;}
.topbar__search input{flex:1;border:none;outline:none;background:none;font-family:var(--font);font-size:16px;color:var(--text);min-width:0;}
.topbar__search input::placeholder{color:var(--muted);}

.searchbox{position:relative;width:100%;max-width:none;}
.srch-pop{position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:90;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:0 8px 22px rgba(20,40,50,.10);padding:6px;max-height:min(60vh,420px);overflow-y:auto;display:none;}
.srch-pop.is-open{display:block;}
.srch-empty{padding:20px 16px;text-align:center;color:var(--muted);font-size:14px;}
.srch-item{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:9px;cursor:pointer;color:var(--text);min-height:44px;}
.srch-item:hover,.srch-item.is-cur{background:var(--bg);}
.srch-item svg{width:16px;height:16px;flex:none;color:var(--faint);}
.srch-item__t{font-size:14.5px;font-weight:600;color:var(--ink);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.srch-item__c{font-size:12.5px;color:var(--muted);flex:none;white-space:nowrap;}
.srch-item mark{background:var(--primary-tint);color:var(--primary-dark);border-radius:3px;padding:0 1px;}
.srch-item--doc{display:flex;flex-direction:column;align-items:stretch;gap:3px;min-height:0;}
.srch-item--doc .srch-item__head{display:flex;align-items:center;gap:11px;}
.srch-item--doc .srch-item__t{white-space:normal;overflow:visible;text-overflow:clip;}
.srch-item__sep{color:var(--faint);font-weight:400;}
.srch-item__snip{font-size:12.5px;color:var(--muted);line-height:1.45;padding-left:27px;}
.srch-item__snip mark{background:var(--primary-tint);color:var(--primary-dark);border-radius:3px;padding:0 1px;}

.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--font);font-weight:600;font-size:15px;border:none;border-radius:11px;padding:11px 20px;cursor:pointer;transition:background .15s,border-color .15s;min-height:44px;}
.docs-body .btn--primary{background:var(--primary);color:#fff;}
.docs-body .btn--primary:hover{background:var(--primary-dark);color:#fff;}
.docs-body .btn--ghost{background:var(--surface);color:var(--ink);border:1px solid var(--border);}
.docs-body .btn--ghost:hover{border-color:var(--primary-100);color:var(--primary-dark);}

.shell{display:grid;grid-template-columns:284px minmax(0,1fr);gap:0;max-width:1240px;margin:0 auto;align-items:start;}

.side{position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow-y:auto;padding:26px 16px 60px 30px;border-right:1px solid var(--border);}
.side__close{display:none;}
.side__grp{margin-bottom:14px;}
.side__grp.is-hidden{display:none;}
.side__lbl{font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding:0 12px;margin-bottom:4px;}
.side__lnk{display:flex;align-items:center;gap:11px;padding:4px 12px;min-height:32px;border-radius:9px;color:var(--text);font-size:14.5px;font-weight:500;cursor:pointer;transition:background .12s,color .12s;position:relative;}
.side__lnk.is-hidden{display:none;}
.side__lnk span{white-space:nowrap;}
.side__lnk svg{width:17px;height:17px;flex:none;color:var(--muted);transition:color .12s;}
.side__lnk:hover{background:var(--bg);color:var(--ink);}
.side__lnk:hover svg{color:var(--text);}
.side__lnk.is-active{background:var(--primary-tint);color:var(--primary-dark);font-weight:600;}
.side__lnk.is-active svg{color:var(--primary);}

.main{min-width:0;padding:44px 56px 100px;border-right:none;}
.art{max-width:820px;margin:0 auto;}
.crumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);margin:0 auto 24px;max-width:820px;flex-wrap:wrap;}
.crumb a{color:var(--muted);font-weight:500;} .crumb a:hover{color:var(--ink);}
.crumb svg{width:14px;height:14px;}
.crumb b{color:var(--muted);font-weight:600;}

.art__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--primary);margin-bottom:12px;}
.art__eyebrow svg{width:14px;height:14px;}
h1.art__h{font-size:clamp(24px,5vw,34px);letter-spacing:-.025em;margin-bottom:12px;}
.art__lead{font-size:17px;line-height:1.55;color:var(--muted);max-width:680px;margin-bottom:30px;}

.hero{border:1px solid var(--primary-100);border-radius:16px;padding:38px 36px;background:var(--primary-tint);margin-bottom:24px;}
.hero__badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--primary);margin-bottom:14px;}
.hero__badge svg{width:14px;height:14px;}
.hero h1{color:var(--ink);font-size:clamp(24px,5vw,34px);letter-spacing:-.025em;line-height:1.1;margin-bottom:12px;}
.hero p{font-size:17px;line-height:1.55;color:var(--muted);max-width:600px;margin:0 0 22px;}
.hero .btn{white-space:nowrap;}
.hero__stats{display:flex;gap:34px;margin-top:26px;padding-top:22px;border-top:1px solid var(--primary-100);flex-wrap:wrap;}
.hero__stat b{display:block;font-size:23px;letter-spacing:-.02em;color:var(--ink);}
.hero__stat span{font-size:13px;color:var(--muted);}

.call{display:flex;gap:14px;align-items:flex-start;border-radius:12px;padding:16px 18px;margin:24px 0;border:1px solid var(--border);background:var(--surface);}
.call__ic{width:34px;height:34px;flex:none;border-radius:9px;display:flex;align-items:center;justify-content:center;}
.call__ic svg{width:18px;height:18px;}
.call__t{font-weight:700;color:var(--ink);margin-bottom:2px;font-size:15px;}
.call__d{color:var(--muted);font-size:14.5px;line-height:1.55;}
.call__d a{font-weight:600;}
.call--info .call__ic{background:var(--primary-tint);color:var(--primary);}
.call--info{border-color:var(--primary-100);}
.call--tip .call__ic{background:#fbeee9;color:#e07a5f;}
.call--tip{border-color:#f2d9cf;}
.call--warn .call__ic{background:#fbf1e1;color:#c98a24;}
.call--warn{border-color:#f0dfc0;}

h2.sec{font-size:clamp(19px,3.4vw,22px);letter-spacing:-.02em;margin:44px 0 6px;scroll-margin-top:24px;}
h2.sec:first-child{margin-top:8px;}
.sec-sub{color:var(--muted);font-size:15px;margin:0 0 18px;}
.art h3,h3.sec3{font-size:16.5px;letter-spacing:-.01em;margin:8px 0 6px;scroll-margin-top:24px;}
.art p.body{font-size:15.5px;color:var(--text);margin:0 0 14px;max-width:720px;}
.art p.body em{color:var(--muted);}

.cards{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:1fr;gap:14px;margin-top:20px;}
.ccard{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:12px;padding:20px;background:var(--surface);transition:border-color .14s,background .14s;cursor:pointer;}
.ccard:hover{border-color:var(--primary-100);background:#fbfdfd;}
.ccard__ic{width:38px;height:38px;border-radius:10px;background:var(--primary-tint);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
.ccard__ic svg{width:20px;height:20px;}
.ccard h3{font-size:16px;margin-bottom:5px;letter-spacing:-.01em;}
.ccard p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.5;}
.ccard__go{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:13px;font-size:13.5px;font-weight:600;color:var(--primary);}
.ccard__go svg{width:14px;height:14px;}

.steps{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
.step{display:flex;gap:18px;border:1px solid var(--border);border-radius:14px;padding:22px 24px;background:var(--surface);transition:border-color .14s;}
.step:hover{border-color:var(--primary-100);}
.step__n{flex:none;width:40px;height:40px;border-radius:11px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;}
.step__b{min-width:0;}
.step__b h3{font-size:18px;margin-bottom:6px;letter-spacing:-.01em;}
.step__b p{margin:0;color:var(--muted);font-size:15px;line-height:1.58;}
.step__link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:14px;font-weight:600;}
.step__link svg{width:14px;height:14px;}

.blist{list-style:none;padding:0;margin:16px 0;display:flex;flex-direction:column;gap:10px;max-width:720px;}
.blist li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--text);}
.blist li svg{width:19px;height:19px;flex:none;margin-top:2px;color:var(--primary);}

.frow{display:flex;gap:15px;align-items:flex-start;padding:18px 0;border-top:1px solid var(--border-soft);}
.frow:first-of-type{border-top:none;}
.frow__ic{width:38px;height:38px;flex:none;border-radius:10px;background:var(--surface);border:1px solid var(--border);color:var(--primary);display:flex;align-items:center;justify-content:center;}
.frow__ic svg{width:19px;height:19px;}
.frow h4{font-size:16px;margin-bottom:3px;}
.frow p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.55;}

.chip{display:inline-block;font-size:13px;font-weight:600;color:var(--primary-dark);background:var(--primary-tint);border-radius:6px;padding:2px 8px;font-family:var(--font);}
.chip--premium{color:#451a03;background:#f59e0b;font-weight:700;}
.chip--h1{vertical-align:middle;margin-left:10px;font-size:12.5px;}
.quote{font-style:italic;color:var(--muted);}

.art__usage{border:1px solid var(--border);border-radius:999px;height:12px;overflow:hidden;background:var(--border-soft);margin:14px 0 6px;max-width:420px;}
.art__usage-fill{height:100%;background:var(--primary);border-radius:999px;width:52%;}

.tablewrap{overflow-x:auto;border:1px solid var(--border);border-radius:12px;margin:16px 0;background:var(--surface);}
.art__table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:480px;}
.art__table caption{caption-side:top;text-align:left;padding:14px 18px 0;color:var(--muted);font-size:13.5px;}
.art__table th,.art__table td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--border-soft);}
.art__table thead th{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);background:var(--bg);white-space:nowrap;}
.art__table tbody th{font-weight:600;color:var(--ink);white-space:nowrap;}
.art__table tbody tr:last-child th,.art__table tbody tr:last-child td{border-bottom:none;}
.art__table tbody td{color:var(--text);}

.art__foot{display:flex;gap:14px;max-width:820px;margin:52px auto 0;padding-top:24px;border-top:1px solid var(--border-soft);}
.pager,.pager--prev,.pager--next{flex:1;border:1px solid var(--border);border-radius:12px;padding:15px 18px;cursor:pointer;transition:border-color .14s;background:var(--surface);}
.pager:hover,.pager--prev:hover,.pager--next:hover{border-color:var(--primary-100);}
.pager span,.pager--prev span,.pager--next span{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.03em;text-transform:uppercase;}
.pager b,.pager--prev b,.pager--next b{display:block;font-size:15.5px;color:var(--ink);margin-top:4px;letter-spacing:-.01em;}
.pager--next{text-align:right;}

.pagetoc{margin:0 0 34px;border:1px solid var(--border);border-radius:12px;padding:14px 18px;background:var(--surface);}
.pagetoc__lbl{font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--faint);margin-bottom:6px;}
.pagetoc__list{list-style:none;margin:0;padding:0;counter-reset:toc;display:flex;flex-direction:column;}
.pagetoc__list li{counter-increment:toc;}
.pagetoc__list a{display:flex;gap:10px;align-items:baseline;padding:3px 0;color:var(--muted);font-size:14.5px;cursor:pointer;transition:color .12s;}
.pagetoc__list a::before{content:counter(toc,decimal-leading-zero);font-size:12px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;flex:none;}
.pagetoc__list a:hover{color:var(--ink);}
.pagetoc__list a.is-active{color:var(--primary-dark);font-weight:600;}
.pagetoc__list li.is-sub{padding-left:22px;counter-increment:none;}
.pagetoc__list li.is-sub a::before{content:"–";font-weight:400;color:var(--faint);}

.doc-code{position:relative;background:var(--ink);border-radius:12px;padding:52px 20px 18px;margin:16px 0;overflow-x:auto;}
.doc-code pre{margin:0;color:#e8eef0;font-size:13.5px;line-height:1.6;font-family:ui-monospace,Consolas,monospace;}
.doc-code code{white-space:pre;}
.doc-copy{position:absolute;top:10px;right:10px;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:6px 12px;font-size:12.5px;font-weight:600;cursor:pointer;font-family:var(--font);min-height:32px;}
.doc-copy:hover{background:rgba(255,255,255,.18);}
.doc-copy.is-copied{background:var(--primary);border-color:var(--primary);}

.doc-table-wrap{overflow-x:auto;margin:16px 0;border:1px solid var(--border);border-radius:12px;background:var(--surface);}
.doc-table{width:100%;border-collapse:collapse;min-width:480px;}
.doc-table th{text-align:left;padding:12px 16px;border-bottom:1px solid var(--border);color:var(--primary-dark);font-size:12.5px;font-weight:700;letter-spacing:.03em;text-transform:uppercase;background:var(--primary-tint);white-space:nowrap;}
.doc-table td{padding:12px 16px;border-bottom:1px solid var(--border-soft);font-size:14.5px;color:var(--text);vertical-align:top;}
.doc-table tr:last-child td{border-bottom:none;}
.doc-table td code,.doc-table td .chip{font-family:ui-monospace,Consolas,monospace;font-size:13px;}
.doc-table td code{background:var(--primary-tint);color:var(--primary-dark);border-radius:6px;padding:2px 7px;white-space:nowrap;}

.side__scrim{display:none;}

@media (min-width:1024px){
  .doc-code{margin-left:-40px;margin-right:-40px;padding-left:60px;padding-right:60px;}
}

@media (max-width:1240px){
  .main{padding:44px 44px 100px;}
}
@media (max-width:1024px){
  .shell{grid-template-columns:256px minmax(0,1fr);}
  .main{padding:40px 36px 90px;}
}
@media (max-width:820px){
  .docmenu{display:flex;}
  .topbar{padding:0 128px 0 16px;}
  .shell{grid-template-columns:minmax(0,1fr);}
  .side{position:fixed;top:0;right:0;left:auto;height:100vh;width:270px;max-width:82vw;background:var(--surface);z-index:95;transform:translateX(100%);transition:transform .24s ease;border-right:none;border-left:1px solid var(--border);padding:24px 16px 60px 16px;overflow-y:auto;}
  .side.is-open{transform:none;}
  .side__scrim.is-open{display:block;position:fixed;inset:0;background:rgba(16,30,34,.4);z-index:90;}
  .side__lnk{min-height:44px;padding:8px 12px;}
  .side__grp{margin-bottom:20px;}
  .main{padding:32px 30px 80px;}
  .cards{grid-template-columns:1fr 1fr;}
  .hero{padding:30px 26px;}
}
@media (max-width:768px){
  .side__close{display:flex;align-items:center;justify-content:center;position:absolute;top:20px;right:16px;width:38px;height:38px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--ink);cursor:pointer;}
  .side{padding-top:70px;}
}
@media (max-width:640px){
  .cards{grid-template-columns:1fr;}
  .main{padding:26px 20px 70px;}
  .art__lead{font-size:16px;}
  .step{padding:18px 18px;gap:14px;}
  .step__n{width:36px;height:36px;font-size:16px;}
  .art__foot{flex-direction:column;}
}
@media (max-width:400px){
  .docmenu{padding:0 11px;gap:7px;font-size:13px;}
  .topbar{padding:0 116px 0 12px;}
  .main{padding:22px 15px 60px;}
  .hero{padding:24px 18px;}
}