:root{--bg:#fff;--bg2:#f6f7f9;--ink:#111418;--ink-2:#3b4149;--muted:#6b7280;--line:#e5e7eb;--line-2:#d1d5db;--blue:#2457d6;--blue-deep:#1a44ad;--blue-soft:#eaf0fd;--amber:#d97706;--amber-soft:#fff4e0;--green:#15803d;--green-soft:#e8f5ec;--red:#b91c1c;--red-soft:#fdecec;--navy:#111827;--sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;--mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;--col:62rem;--text:40rem;--r:12px}*,:before,:after{box-sizing:border-box;min-width:0}html{-webkit-text-size-adjust:100%;scroll-padding-top:4.5rem}body{font:17px/1.6 var(--sans);color:var(--ink);background:var(--bg);margin:0}img,svg{max-width:100%}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,h4{letter-spacing:-.02em;color:var(--ink);text-wrap:balance;margin:0 0 .5rem;font-weight:700;line-height:1.15}h1{font-size:clamp(1.9rem,4.2vw,2.75rem)}h2{margin-top:2.5rem;font-size:clamp(1.35rem,2.4vw,1.7rem)}h3{margin-top:1.4rem;font-size:1.1rem}p{margin:.6rem 0}.num,.mono,td.n,th.n{font-family:var(--mono);font-variant-numeric:tabular-nums}.col{max-width:var(--col);margin:0 auto;padding:0 1.25rem}.text{max-width:var(--text)}.lede{color:var(--ink-2);text-wrap:pretty;max-width:40rem;margin:.5rem 0 0;font-size:1.15rem;line-height:1.55}.kicker{letter-spacing:.08em;text-transform:uppercase;color:var(--blue);margin-bottom:.4rem;font-size:.76rem;font-weight:600;display:inline-block}.small{color:var(--muted);font-size:.88rem}.fine{color:var(--muted);font-size:.8rem;line-height:1.5}.byline{color:var(--muted);font-size:.85rem}.top{z-index:20;backdrop-filter:saturate(1.4)blur(8px);border-bottom:1px solid var(--line);background:#fffffff0;position:sticky;top:0}.top .col{align-items:center;gap:1.25rem;height:3.5rem;display:flex}.brand{color:var(--ink);letter-spacing:-.02em;white-space:nowrap;align-items:center;gap:.5rem;font-size:1.05rem;font-weight:700;display:flex}.brand:hover{text-decoration:none}.brand svg{flex:none;width:26px;height:26px}.brand span b{color:var(--blue)}nav.main{scrollbar-width:none;gap:.1rem;margin-left:auto;display:flex;overflow-x:auto}nav.main::-webkit-scrollbar{display:none}nav.main a{color:var(--ink-2);white-space:nowrap;border-radius:8px;padding:.4rem .7rem;font-size:.92rem;font-weight:500;display:block}nav.main a:hover{background:var(--bg2);color:var(--ink);text-decoration:none}nav.main a.on{background:var(--navy);color:#fff}@media (width<=48rem){.top .col{flex-wrap:wrap;gap:.3rem 1rem;height:auto;padding-top:.55rem;padding-bottom:.4rem}nav.main{flex-basis:100%;width:calc(100% + 2.5rem);margin-left:-1.25rem;padding:0 1.25rem}}main{padding:0 0 4rem}.hero{padding:2.25rem 0 1.25rem}.hero.tight{padding:1.75rem 0 .5rem}.crumbs{color:var(--muted);flex-wrap:wrap;gap:.4rem;margin:1.1rem 0 0;font-size:.8rem;display:flex}.crumbs a{color:var(--muted)}.btn{background:var(--blue);color:#fff;border:1px solid var(--blue);white-space:nowrap;cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:.4rem;padding:.7rem 1.15rem;font-size:.95rem;font-weight:600;line-height:1.2;display:inline-flex}.btn:hover{background:var(--blue-deep);border-color:var(--blue-deep);text-decoration:none}.btn.quiet{color:var(--ink);border-color:var(--line-2);background:#fff}.btn.quiet:hover{background:var(--bg2)}.btn.sm{padding:.45rem .8rem;font-size:.84rem}.more{white-space:nowrap;font-weight:600}.card{border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:1.2rem 1.35rem}.card h3{margin-top:0}.grid{gap:.9rem;display:grid}.g2{grid-template-columns:repeat(auto-fill,minmax(min(100%,18rem),1fr))}.g3{grid-template-columns:repeat(auto-fill,minmax(min(100%,14rem),1fr))}a.tile{border:1px solid var(--line);border-radius:var(--r);color:inherit;background:#fff;flex-direction:column;gap:.3rem;padding:1rem 1.15rem;display:flex}a.tile:hover{border-color:var(--blue);text-decoration:none}a.tile h3{margin:0;font-size:1rem}a.tile p{color:var(--ink-2);margin:0;font-size:.9rem;line-height:1.45}a.tile .go{color:var(--blue);margin-top:auto;font-size:.82rem;font-weight:600}.sect{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:1rem;margin:2.5rem 0 .9rem;display:flex}.sect h2{margin:0}.sect p{color:var(--muted);margin:0;font-size:.92rem}.links{columns:2;column-gap:2rem;margin:0;padding:0;font-size:.98rem;list-style:none}.links li{break-inside:avoid;padding:.3rem 0}.links .small{margin-left:.3rem}@media (width>=48rem){.links.c3{columns:3}}@media (width<=36rem){.links{columns:1}}.calc{border:1px solid var(--line);background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 8px 28px #1114180f}.calc .body{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);display:grid}.calc .in{padding:1.35rem 1.5rem}.calc .out{background:var(--bg2);border-left:1px solid var(--line);padding:1.35rem 1.5rem}@media (width<=52rem){.calc .body{grid-template-columns:1fr}.calc .out{border-left:0;border-top:1px solid var(--line)}}.f{flex-direction:column;gap:.35rem;margin-bottom:1.05rem;display:flex}.f label{color:var(--ink);font-size:.9rem;font-weight:600}.f .hint{color:var(--muted);font-size:.8rem}.ig{border:1px solid var(--line-2);background:#fff;border-radius:10px;align-items:stretch;display:flex;overflow:hidden}.ig:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-soft)}.ig input,.ig select{font:inherit;font-family:var(--mono);min-width:0;color:var(--ink);background:0 0;border:0;outline:0;flex:1;padding:.65rem .85rem;font-size:1.15rem}.ig .u{color:var(--muted);background:var(--bg2);border-left:1px solid var(--line);align-items:center;padding:0 .8rem;font-size:.85rem;font-weight:600;display:flex}.ig select.u{font-family:var(--sans);color:var(--ink-2);background:var(--bg2);border-left:1px solid var(--line);cursor:pointer;flex:none;padding:0 .65rem;font-size:.86rem;font-weight:600}.seg{flex-wrap:wrap;gap:.35rem;display:flex}.seg button{font:inherit;font-family:var(--mono);border:1px solid var(--line-2);color:var(--ink-2);cursor:pointer;background:#fff;border-radius:999px;padding:.3rem .7rem;font-size:.82rem}.seg button:hover{border-color:var(--blue)}.seg button.on{background:var(--navy);border-color:var(--navy);color:#fff}.row2{grid-template-columns:1fr 1fr;gap:.9rem;display:grid}@media (width<=30rem){.row2{grid-template-columns:1fr}}.res{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}@media (width<=30rem){.res{grid-template-columns:1fr}}.res .r{border:1px solid var(--line);background:#fff;border-radius:12px;padding:.85rem 1rem}.res .r.big{background:var(--navy);color:#fff;border-color:var(--navy);grid-column:1/-1}.res .r .l{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-size:.74rem;font-weight:600}.res .r.big .l{color:#9ca3af}.res .r .v{font-family:var(--mono);color:var(--ink);margin-top:.15rem;font-size:1.5rem;font-weight:600;line-height:1.15}.res .r.big .v{color:#fff;font-size:2.9rem}.res .r .v small{color:var(--muted);margin-left:.3rem;font-size:.85rem;font-weight:500}.res .r.big .v small{color:#9ca3af}.res .r .s{color:var(--muted);margin-top:.2rem;font-size:.82rem}.res .r.big .s{color:#d1d5db}.syr{margin:.9rem 0 .2rem}.syr svg{width:100%;height:auto;display:block}.formula{font-family:var(--mono);color:var(--ink-2);border:1px solid var(--line);background:#fff;border-radius:10px;margin-top:.9rem;padding:.7rem .9rem;font-size:.84rem;line-height:1.6;overflow-x:auto}.warn{background:var(--amber-soft);color:#7a4b00;border:1px solid #f3d9a4;border-radius:10px;align-items:flex-start;gap:.6rem;margin-top:.9rem;padding:.7rem .9rem;font-size:.86rem;display:flex}.share{flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:1rem;font-size:.84rem;display:flex}.share input{font:inherit;font-family:var(--mono);border:1px solid var(--line-2);min-width:12rem;color:var(--muted);border-radius:8px;flex:1;padding:.4rem .6rem;font-size:.78rem}.tbl{border-collapse:collapse;border:1px solid var(--line);border-radius:var(--r);background:#fff;width:100%;font-size:.95rem;overflow:hidden}.tbl th,.tbl td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:.6rem .85rem}.tbl th{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--bg2);font-size:.76rem;font-weight:600}.tbl tr:last-child td{border-bottom:0}.tbl td.n,.tbl th.n{text-align:right}.tbl td.num,.tbl td.n{white-space:nowrap}.tbl .hl td{background:var(--amber-soft)}.tblwrap{-webkit-overflow-scrolling:touch;margin:1rem 0;overflow-x:auto}.tbl a{font-weight:500}.prose{max-width:var(--text)}.prose h2{margin-top:2.25rem;font-size:1.45rem}.prose h3{margin-top:1.5rem}.prose p,.prose li{font-size:1.05rem;line-height:1.7}.prose table{border-collapse:collapse;border:1px solid var(--line);background:#fff;width:100%;margin:1.1rem 0;font-size:.94rem}.prose th,.prose td{border-bottom:1px solid var(--line);text-align:left;padding:.55rem .75rem}.prose th{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--bg2);font-size:.76rem}.prose code{font-family:var(--mono);background:var(--blue-soft);border-radius:4px;padding:.1em .35em;font-size:.9em}.prose blockquote{border-left:3px solid var(--blue);background:var(--bg2);color:var(--ink-2);margin:1rem 0;padding:.6rem 1rem}.faq{max-width:var(--text)}.faq details{border-top:1px solid var(--line);padding:.8rem 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;justify-content:space-between;gap:1rem;font-size:1.02rem;font-weight:600;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--blue);font-weight:700}.faq details[open] summary:after{content:"–"}.faq details p{color:var(--ink-2);margin:.5rem 0 .2rem;font-size:1rem}.layout{grid-template-columns:minmax(0,1fr) 16rem;align-items:start;gap:2.5rem;display:grid}@media (width<=60rem){.layout{grid-template-columns:1fr}}aside.side{flex-direction:column;gap:1rem;display:flex;position:sticky;top:4.25rem}.side .card{padding:.9rem 1.05rem}.side h3{margin:0 0 .4rem;font-size:.9rem}.side ul{margin:0;padding:0;font-size:.9rem;list-style:none}.side li{border-top:1px solid var(--line);padding:.28rem 0}.side li:first-child{border-top:0}.lp{border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:var(--r);background:#fff;padding:.9rem 1.1rem;font-size:.95rem}.lp p{margin:.2rem 0}.pill{letter-spacing:.03em;color:var(--blue);background:var(--blue-soft);white-space:nowrap;border-radius:999px;padding:.2rem .6rem;font-size:.74rem;font-weight:600;display:inline-block}.pill.amber{color:#92400e;background:var(--amber-soft)}.pill.green{color:var(--green);background:var(--green-soft)}.pill.grey{color:var(--ink-2);background:var(--bg2)}.dose{background:var(--bg2);border:1px solid var(--line);border-radius:var(--r);margin:1rem 0;padding:1.1rem 1.3rem}.dose .big{font-family:var(--mono);color:var(--ink);font-size:1.9rem;font-weight:600;line-height:1.1}.dose .big small{font-family:var(--sans);color:var(--muted);margin-left:.4rem;font-size:.9rem;font-weight:500}.kv{grid-template-columns:9rem 1fr;gap:.4rem 1rem;margin:.8rem 0 0;font-size:.97rem;display:grid}.kv dt{color:var(--muted);font-weight:500}.kv dd{margin:0}@media (width<=36rem){.kv{grid-template-columns:1fr;gap:.1rem}.kv dt{letter-spacing:.06em;text-transform:uppercase;margin-top:.5rem;font-size:.76rem}}.note{border-left:3px solid var(--amber);background:var(--amber-soft);color:#5a3a00;border-radius:0 10px 10px 0;margin:1rem 0;padding:.7rem 1rem;font-size:.92rem}footer.ft{border-top:1px solid var(--line);color:var(--ink-2);margin-top:4rem;padding:2.25rem 0 2rem;font-size:.9rem}footer.ft .cols{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:2rem;display:grid}@media (width<=48rem){footer.ft .cols{grid-template-columns:1fr 1fr}}@media (width<=30rem){footer.ft .cols{grid-template-columns:1fr}}footer.ft h4{letter-spacing:.08em;text-transform:uppercase;color:var(--ink);margin:0 0 .6rem;font-size:.78rem}footer.ft ul{margin:0;padding:0;list-style:none}footer.ft li{margin:.28rem 0}footer.ft a{color:var(--ink-2)}footer.ft .legal{border-top:1px solid var(--line);color:var(--muted);margin-top:1.75rem;padding-top:1.1rem;font-size:.8rem;line-height:1.6}