:root{--bg:#f7f8fa;--fg:#14161b;--mut:#5b6170;--line:#e3e5ea;--card:#fff;--acc:#2147d6;--acc-soft:#eef2fd;--v2:#127a3f;--v1:#a26100;--v0:#5d6370;--f:#b42318;--r:14px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font:16px/1.55 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}.narrow{max-width:760px;margin:0 auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;border-radius:8px;z-index:99}
header.top{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:40}header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}
.logo{display:inline-flex;align-items:center;gap:8px;font-weight:800;letter-spacing:-.02em;color:var(--fg);font-size:19px}.logo:hover{text-decoration:none}.logo .wm span{color:var(--acc)}.logo .mk{flex:none}
.top nav{display:flex;gap:4px}.top nav a{color:var(--mut);font-size:15px;white-space:nowrap;padding:6px 10px;border-radius:8px}.top nav a:hover{background:#f1f2f5;text-decoration:none;color:var(--fg)}.top nav a[aria-current]{color:var(--fg);font-weight:600}
@media(max-width:760px){header.top{position:static}header.top .wrap{flex-wrap:wrap;height:auto;padding-top:10px;padding-bottom:6px;row-gap:4px}.top nav{width:calc(100% + 20px);overflow-x:auto;margin:0 -10px;padding-bottom:2px;scrollbar-width:none}.top nav a{font-size:14px;padding:6px 7px}}
.legend-m{display:none;margin:0 0 12px}.legend-m summary{cursor:pointer;font-weight:600;font-size:14.5px}.legend-m dl{margin-top:12px}@media(max-width:900px){.hero .legend{display:none}.legend-m{display:block;padding:12px 16px}}
article>.crumbs{display:block;padding-top:4px}
.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:32px;align-items:start;padding:36px 0 22px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--acc);margin:0 0 10px}
.hero h1{font-size:42px;line-height:1.08;letter-spacing:-.035em;margin:0 0 14px}.hero .sub{color:var(--mut);font-size:18px;margin:0 0 20px;max-width:600px}
.sub-form{display:flex;gap:8px;max-width:520px}.sub-form input[type=email]{flex:1;min-width:0;margin:0;padding:12px 14px;font-size:16px}.sub-form button{padding:12px 18px;font-size:16px;white-space:nowrap}
.fine{font-size:12.5px;color:var(--mut);margin:8px 0 0}
.stats{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 0;padding:0;list-style:none}.stats li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 11px;font-size:13.5px;color:var(--mut)}.stats b{color:var(--fg)}
.legend{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}.legend h2{font-size:15px;margin:0 0 10px;letter-spacing:0}.legend dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 10px;font-size:13.5px;line-height:1.45;align-items:start}.legend dt{white-space:nowrap}.legend dd{margin:0;color:var(--mut)}.legend .more{font-size:14px;margin:12px 0 0}
@media(max-width:900px){.hero{grid-template-columns:1fr;gap:22px;padding:28px 0 18px}.hero h1{font-size:34px}}
@media(max-width:480px){.hero h1{font-size:30px}.hero .sub{font-size:16.5px}.sub-form{flex-direction:column}.sub-form button{width:100%}}
.browse{padding:6px 0 40px;scroll-margin-top:72px}.search{position:relative;margin:0 0 14px}.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--mut);pointer-events:none}
.search input{width:100%;font:inherit;font-size:17px;padding:14px 56px 14px 44px;border:1.5px solid #cfd3dc;border-radius:12px;background:#fff;-webkit-appearance:none;appearance:none}.search input:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 4px rgba(33,71,214,.12)}
.search kbd{position:absolute;right:12px;top:50%;transform:translateY(-50%);font:12px ui-monospace,monospace;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 7px;color:var(--mut);background:#fafbfc}@media(hover:none){.search kbd{display:none}}
.frow{display:flex;align-items:center;gap:8px;margin:0 0 10px;flex-wrap:wrap}.frow .lab{font-size:13px;font-weight:600;color:var(--mut);min-width:104px}
@media(max-width:760px){.frow{flex-wrap:nowrap;overflow-x:auto;margin-left:-20px;margin-right:-20px;padding:0 20px 2px;scrollbar-width:none}.frow::-webkit-scrollbar{display:none}.frow .lab{min-width:auto;white-space:nowrap}}
.chip{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:14px;font-weight:500;line-height:1.2;padding:7px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--fg);cursor:pointer;white-space:nowrap}
.chip:hover{border-color:#b8bfcf;text-decoration:none;background:#fff}.chip .n{color:var(--mut);font-size:12.5px}.chip.on,.chip[aria-pressed=true]{background:var(--fg);border-color:var(--fg);color:#fff}.chip.on .n,.chip[aria-pressed=true] .n{color:#c9ccd4}
.chip:focus-visible,.card:focus-visible,button:focus-visible{outline:3px solid rgba(33,71,214,.45);outline-offset:2px}
.fdesc{font-size:14px;color:#2b2f38;margin:2px 0 8px;padding:8px 12px;background:var(--acc-soft);border-radius:10px}
.count{font-size:14px;color:var(--mut);margin:14px 0 12px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}@media(max-width:1000px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.grid{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 16px 14px;color:var(--fg);transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:#b7bed0;text-decoration:none;box-shadow:0 4px 18px rgba(20,22,27,.06)}.card h2,.card h3{margin:2px 0 0;font-size:17px;line-height:1.3;letter-spacing:-.01em}
.card p{margin:0;color:var(--mut);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card .foot{margin-top:auto;padding-top:8px;border-top:1px dashed var(--line);display:flex;justify-content:space-between;gap:8px;font-size:12.5px;color:var(--mut)}
.badges{display:flex;gap:6px;flex-wrap:wrap}
.st{display:inline-flex;align-items:center;gap:4px;font-weight:700;font-size:12.5px;border-radius:7px;padding:2px 8px;color:#fff;white-space:nowrap}.st.v2{background:var(--v2)}.st.v1{background:var(--v1)}.st.v0{background:var(--v0)}.st.f{background:var(--f)}
.lv{display:inline-flex;align-items:center;gap:4px;font-weight:600;font-size:12.5px;border-radius:7px;padding:1px 8px;border:1.5px solid;white-space:nowrap;background:#fff}
.lv.L0{color:#0f6b3a;border-color:#9fd3b5}.lv.L1{color:#1d43c4;border-color:#aebcf0}.lv.L2{color:#0e6470;border-color:#9fd0d6}.lv.L3{color:#8a4b00;border-color:#e7c48f}.lv.L4{color:#a3200f;border-color:#efada4}
.empty{background:#fff;border:1px dashed #c9ced8;border-radius:var(--r);padding:28px 20px;text-align:center}.empty h3{margin:0 0 6px}.empty p{margin:6px 0;color:var(--mut)}
.topics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}@media(max-width:1000px){.topics{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.topics{grid-template-columns:1fr}}
.topic{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;color:var(--fg)}.topic:hover{border-color:#b7bed0;text-decoration:none}.topic b{display:block}.topic span{display:block;color:var(--mut);font-size:13.5px;margin-top:2px}.topic small{color:var(--acc);font-size:13px}
.section-h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:36px 0 12px}.section-h h2{margin:0}
input[type=email]{width:100%;font:inherit;padding:9px 11px;border:1px solid #cfd3dc;border-radius:10px;background:#fff}
button{font:inherit;background:var(--acc);color:#fff;border:0;border-radius:10px;padding:9px 15px;cursor:pointer;font-weight:600}button:hover{background:#1a3bb5}button[disabled]{opacity:.55;cursor:not-allowed}
.chip:hover{background:#fff}.chip[aria-pressed=true]:hover{background:var(--fg)}.btn-ghost{background:#fff;color:var(--fg);border:1px solid var(--line);font-weight:500}.btn-ghost:hover{background:#f3f4f7}
.todo{font-size:12px;color:var(--f)}.lead{font-size:18px;color:#2b2f38}code{background:#f0f1f4;border:1px solid var(--line);border-radius:5px;padding:0 4px;font-size:13.5px}.msg{font-size:14px;margin:6px 0 0;min-height:1em}.msg.ok{color:var(--v2)}.msg.err{color:var(--f)}
article{margin:28px auto 60px}article h1{font-size:36px;line-height:1.12;letter-spacing:-.03em;margin:8px 0 10px}@media(max-width:600px){article h1{font-size:28px}}
dl.meta{display:grid;grid-template-columns:170px 1fr;gap:8px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;font-size:15px}dl.meta dt{color:var(--mut)}dl.meta dd{margin:0}
@media(max-width:600px){dl.meta{grid-template-columns:1fr;gap:2px}dl.meta dd{margin-bottom:8px}}
h2{font-size:21px;margin:30px 0 8px;letter-spacing:-.015em}pre{white-space:pre-wrap;background:#f0f1f4;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px;margin:0}
.callout{border-left:4px solid var(--acc);background:#fff;padding:10px 14px;border-radius:0 10px 10px 0}.callout.warn{border-color:var(--v1)}
table{border-collapse:collapse;width:100%;background:#fff;font-size:15px}td,th{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.summary{font-size:19px;line-height:1.5;margin:6px 0 18px;color:#2b2f38}.crumbs{font-size:14px;color:var(--mut)}.crumbs a{color:var(--mut)}
.cite{font-size:14px;background:#fff;border:1px dashed var(--line);border-radius:8px;padding:8px 12px;color:var(--mut)}
.verdict{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 18px}@media(max-width:600px){.verdict{grid-template-columns:1fr}}
.vbox{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}.vbox .k{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--mut);margin:0 0 6px}.vbox .st,.vbox .lv{font-size:14px;padding:3px 10px}.vbox p{margin:8px 0 0;font-size:14.5px;color:var(--mut)}
.tryit{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}.tryit .hd{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:0 0 8px;font-weight:600}.tryit button{font-size:13px;padding:5px 10px}
.nl{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;margin:32px 0}.nl h3{margin:0 0 4px;font-size:18px}.nl p{margin:0 0 10px;color:var(--mut);font-size:14.5px}
.nl form{display:flex;gap:8px;flex-wrap:wrap}.nl input[type=email]{flex:1;min-width:200px;margin:0}
.related .grid{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:620px){.related .grid{grid-template-columns:1fr}}
.pagehead{background:#fff;border-bottom:1px solid var(--line);padding:30px 0 22px}.pagehead h1{font-size:34px;line-height:1.12;letter-spacing:-.03em;margin:8px 0 8px}.pagehead .lead{max-width:780px;margin:0 0 10px}@media(max-width:600px){.pagehead h1{font-size:27px}}
.prose{max-width:760px}.prose p,.prose li{color:#2b2f38}.prose h2{scroll-margin-top:80px}.updated{font-size:14px;color:var(--mut)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
footer.site{border-top:1px solid var(--line);background:#fff;color:var(--mut);font-size:14px;padding:28px 0 30px;margin-top:20px}
footer.site .row{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap}footer.site .brand p{margin:6px 0 0;max-width:340px}
footer.site nav{display:flex;gap:6px 18px;flex-wrap:wrap}footer.site nav a{color:var(--fg)}footer.site .legal{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:8px 18px;flex-wrap:wrap;font-size:13px}footer.site .legal a{color:var(--mut)}footer.site .legal .ll a{margin-right:14px;white-space:nowrap;display:inline-block}

:root{--sbh:44px}body{padding-bottom:calc(var(--sbh) + env(safe-area-inset-bottom,0px))}html.sb-hidden body{padding-bottom:0}html.sb-hidden .sb:not(.sb-mock){display:none}
.sb{position:fixed;left:0;right:0;bottom:0;z-index:50;height:var(--sbh);padding-bottom:env(safe-area-inset-bottom,0px);display:flex;align-items:center;gap:10px;background:rgba(22,24,29,.96);color:#e9eaee;font-size:13.5px;border-top:1px solid #2b2f38;backdrop-filter:saturate(1.4) blur(6px)}
.sb-mock{position:relative;border-radius:10px;border:1px solid #2b2f38;margin:12px 0;z-index:auto}
.sb-label{flex:none;padding:0 4px 0 14px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#9aa0ad}
.sb-viewport{flex:1;overflow:hidden;min-width:0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 24px,#000 calc(100% - 24px),transparent);mask-image:linear-gradient(90deg,transparent,#000 24px,#000 calc(100% - 24px),transparent)}
.sb-track{display:flex;width:max-content;animation:sb-scroll 40s linear infinite}.sb:hover .sb-track,.sb:focus-within .sb-track{animation-play-state:paused}
.sb-set{display:flex;flex:none}
@keyframes sb-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.sb-track{animation:none}.sb-viewport{overflow-x:auto}}
.sb-item{display:inline-flex;align-items:center;gap:8px;padding:0 22px;white-space:nowrap;color:#e9eaee;height:var(--sbh)}.sb-item:hover{text-decoration:none;color:#fff}.sb-item:hover .sb-name{text-decoration:underline}
.sb-badge{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:6px;background:#2147d6;color:#fff;font-weight:800;font-size:11px}
.sb-open .sb-badge{background:transparent;border:1px dashed #6b7280;color:#9aa0ad}.sb-open .sb-name{color:#fff}
.sb-name{font-weight:700}.sb-pitch{color:#b4b9c4}.sb-tag{font-size:10.5px;border:1px solid #4b5160;border-radius:4px;padding:0 5px;color:#9aa0ad}
.sb-x{flex:none;background:transparent;color:#9aa0ad;border:0;font-size:20px;line-height:1;padding:0 14px;height:var(--sbh);cursor:pointer;border-radius:0}.sb-x:hover{color:#fff}
@media(max-width:600px){:root{--sbh:40px}.sb{font-size:12.5px}.sb-label{padding-left:10px}.sb-item{padding:0 14px}.sb-pitch{max-width:none}}