:root{color-scheme:light dark;--page:#f6f7fb;--surface:#fff;--surface-soft:#edf2fb;--ink:#16213d;--muted:#56627d;--line:#d8dfeb;--line-strong:#bdc8da;--brand:#2f3f96;--brand-deep:#25337f;--link:#293b91;--accent:#1aaa94;--accent-soft:#dff7f2;--warning:#fff5d7;--focus:#ffbf47;--shadow-sm:0 1px 2px #16213d0a;--shadow-md:0 14px 35px #16213d1c;--radius-sm:10px;--radius:15px;--radius-lg:24px;--content:1120px}@media (prefers-color-scheme:dark){:root:not([data-theme]){--page:#0d1423;--surface:#151f34;--surface-soft:#1c2944;--ink:#edf2fb;--muted:#adb8cf;--line:#2c3955;--line-strong:#465574;--brand:#2c3b91;--brand-deep:#233078;--link:#9ab8ff;--accent:#4fd2bd;--accent-soft:#173b3a;--warning:#342d16;--focus:#ffd166;--shadow-sm:0 1px 2px #00000038;--shadow-md:0 18px 40px #00000057}}:root[data-theme=dark]{--page:#0d1423;--surface:#151f34;--surface-soft:#1c2944;--ink:#edf2fb;--muted:#adb8cf;--line:#2c3955;--line-strong:#465574;--brand:#2c3b91;--brand-deep:#233078;--link:#9ab8ff;--accent:#4fd2bd;--accent-soft:#173b3a;--warning:#342d16;--focus:#ffd166;--shadow-sm:0 1px 2px #00000038;--shadow-md:0 18px 40px #00000057}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:88px}body{background:var(--page);min-height:100vh;color:var(--ink);overflow-wrap:anywhere;text-rendering:optimizelegibility;flex-direction:column;margin:0;font:17px/1.68 system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;display:flex}main{flex:1;width:100%;padding-bottom:24px}a{color:var(--link);text-underline-offset:.16em;text-decoration-thickness:.08em}a:hover{text-decoration-thickness:.13em}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}[hidden]{display:none!important}.wrap{width:100%;max-width:var(--content);margin-inline:auto;padding-inline:clamp(16px,3.5vw,32px)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip{z-index:100;background:var(--surface);color:var(--ink);box-shadow:var(--shadow-md);border-radius:8px;padding:10px 14px;font-weight:700;position:fixed;top:-100px;left:16px}.skip:focus{top:10px}.top{z-index:20;color:#fff;background:var(--brand-deep);border-bottom:4px solid var(--accent);position:sticky;top:0;box-shadow:0 4px 14px #121c421f}.top-row{justify-content:space-between;align-items:center;gap:20px;min-height:64px;display:flex}.top-actions{justify-content:flex-end;align-items:center;gap:8px;min-width:0;display:flex}.brand{min-width:max-content;color:inherit;letter-spacing:-.015em;align-items:center;gap:10px;font-size:1.05rem;text-decoration:none;display:inline-flex}.brand img{flex:none}.brand:hover span{text-underline-offset:.2em;text-decoration:underline}.nav-wide{justify-content:flex-end;align-items:stretch;min-width:0;display:flex}.nav-wide a{color:#fff;text-align:center;opacity:.86;white-space:nowrap;border-bottom:3px solid #0000;align-items:center;min-height:60px;padding:0 10px;font-size:.88rem;font-weight:650;text-decoration:none;display:flex}.nav-wide a:hover,.nav-wide a[aria-current=page]{opacity:1;border-bottom-color:#fff}.theme-toggle{color:#fff;cursor:pointer;background:0 0;border:1px solid #ffffff73;border-radius:50%;flex:0 0 42px;place-items:center;width:42px;height:42px;padding:0;font:700 1.35rem/1 system-ui,sans-serif;display:none}.theme-ready .theme-toggle{display:inline-grid}.theme-toggle:hover{background:#ffffff1f}.theme-toggle .theme-sun{font-size:1.08rem;display:none}:root[data-theme=dark] .theme-toggle .theme-moon{display:none}:root[data-theme=dark] .theme-toggle .theme-sun{display:inline}.menu{display:none;position:relative}.menu summary{color:#fff;cursor:pointer;white-space:nowrap;border:1px solid #ffffff73;border-radius:10px;align-items:center;gap:9px;min-height:44px;padding:7px 12px;font-weight:650;list-style:none;display:flex}.menu summary::-webkit-details-marker{display:none}.menu summary:before{content:"";background-color:#0000;background-image:linear-gradient(#fff 0 0),linear-gradient(#fff 0 0),linear-gradient(#fff 0 0);background-position:top,50%,bottom;background-repeat:no-repeat;background-size:100% 2px,100% 2px,100% 2px;background-attachment:scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box;width:18px;height:14px}.menu[open] summary{background:#ffffff1a}.menu nav{z-index:30;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);width:min(320px,100vw - 28px);max-height:calc(100vh - 86px);box-shadow:var(--shadow-md);gap:3px;padding:9px;display:grid;position:absolute;top:calc(100% + 10px);right:0;overflow-y:auto}.menu nav a{min-height:44px;color:var(--ink);border-radius:8px;align-items:center;padding:9px 12px;font-weight:600;text-decoration:none;display:flex}.menu nav a:hover,.menu nav a[aria-current=page]{background:var(--surface-soft);color:var(--link)}.crumbs{color:var(--muted);flex-wrap:wrap;align-items:center;gap:3px;margin-top:18px;font-size:.84rem;display:flex}h1,h2,h3{color:var(--ink);letter-spacing:-.032em}h1{max-width:22ch;margin:.42em 0 .25em;font-size:clamp(1.9rem,5vw,3.05rem);line-height:1.08}h2{margin:1.9em 0 .55em;scroll-margin-top:88px;font-size:clamp(1.28rem,2.8vw,1.65rem);line-height:1.22}p,li{max-width:72ch}.eyebrow{color:var(--link);letter-spacing:.095em;text-transform:uppercase;margin:0 0 10px;font-size:.76rem;font-weight:800;line-height:1.35}.meta{color:var(--muted);margin:0 0 18px;font-size:.88rem}.meta strong{color:var(--ink);font-weight:650}.hero{isolation:isolate;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow-sm);margin-top:24px;padding:clamp(28px,6vw,58px);position:relative;overflow:hidden}.hero:after{content:"";z-index:-1;aspect-ratio:1;background:radial-gradient(circle, var(--accent-soft), transparent 68%);opacity:.8;border-radius:50%;width:330px;position:absolute;top:-110px;right:-80px}.hero h1{max-width:19ch;margin-top:0}.hero>p:not(.eyebrow){max-width:720px;color:var(--muted);margin:14px 0 0;font-size:clamp(1rem,2vw,1.18rem);line-height:1.65}.finder{border-radius:var(--radius);background:var(--brand-deep);color:#fff;box-shadow:var(--shadow-sm);grid-template-columns:minmax(190px,.65fr) minmax(280px,1.2fr);align-items:end;gap:10px 30px;margin:18px 0 34px;padding:20px 22px;display:grid}.finder h2{color:#fff;margin:0 0 2px;font-size:1.22rem}.finder p{color:#fffc;margin:0;font-size:.9rem}.search-field{align-items:center;gap:8px;display:flex}.search-field input{background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='19' height='19' viewBox='0 0 24 24' fill='none' stroke='%2356627d' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-4-4'/%3E%3C/svg%3E") no-repeat 14px center;width:100%;min-width:0;min-height:48px;color:var(--ink);font:inherit;border:1px solid #ffffff57;border-radius:12px;padding:10px 14px 10px 42px}.search-field input::placeholder{color:var(--muted);opacity:.9}.search-field button{color:#fff;min-height:44px;font:inherit;cursor:pointer;background:0 0;border:1px solid #ffffff80;border-radius:10px;padding:8px 12px;font-weight:700}.search-field button:hover{background:#ffffff1f}.search-status{grid-column:2;min-height:1.45em}.guide-group{margin-top:42px}.guide-group>h2{align-items:center;gap:12px;margin-bottom:14px;display:flex}.guide-group>h2:after{content:"";background:var(--line);flex:1;height:1px}.article{max-width:940px;margin-inline:auto}.article-head{padding-top:22px}.article-head h1{max-width:24ch}.answer{border:1px solid var(--line);border-left:6px solid var(--accent);border-radius:var(--radius);background:var(--surface);max-width:none;box-shadow:var(--shadow-sm);margin:0;padding:clamp(18px,3vw,24px);font-size:clamp(1.02rem,2vw,1.12rem);line-height:1.7}.facts{grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin:16px 0;display:grid}.fact{border-radius:var(--radius-sm);background:var(--surface-soft);border:1px solid #0000;min-width:0;padding:15px 16px}.fact dt{color:var(--muted);letter-spacing:.06em;text-transform:uppercase;font-size:.75rem;font-weight:700;line-height:1.4}.fact dd{color:var(--ink);margin:5px 0 0;font-size:1.08rem;font-weight:750;line-height:1.45}.jump{flex-wrap:wrap;align-items:center;gap:8px;margin:18px 0 34px;display:flex}.jump>span{color:var(--muted);letter-spacing:.07em;text-transform:uppercase;flex-basis:100%;font-size:.77rem;font-weight:800}.jump a{border:1px solid var(--line);background:var(--surface);border-radius:999px;align-items:center;min-height:38px;padding:6px 12px;font-size:.85rem;line-height:1.25;text-decoration:none;display:inline-flex}.jump a:hover{border-color:var(--link);background:var(--surface-soft)}.content-section{margin-top:40px}.content-section h2{border-bottom:1px solid var(--line);padding-bottom:9px}.content-section p,.content-section>ul{max-width:74ch}.content-section li+li{margin-top:7px}sup{line-height:0}sup a{background:var(--accent-soft);min-width:1.25em;min-height:1.25em;color:var(--link);border-radius:4px;justify-content:center;align-items:center;margin-inline:1px;padding:0 2px;font-size:.72em;font-weight:800;text-decoration:none;display:inline-flex}.table-wrap{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);max-width:100%;box-shadow:var(--shadow-sm);margin:20px 0 8px;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.94rem}th,td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:12px 14px}th{background:var(--surface-soft);color:var(--ink);letter-spacing:.045em;text-transform:uppercase;font-size:.78rem}tbody tr:last-child td{border-bottom:0}tbody tr:hover{background:color-mix(in srgb, var(--surface-soft) 45%, transparent)}.faq-section{margin-top:48px}details.faq{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);box-shadow:var(--shadow-sm);margin:9px 0}details.faq summary{cursor:pointer;justify-content:space-between;align-items:center;gap:16px;min-height:52px;padding:12px 15px;font-weight:700;list-style:none;display:flex}details.faq summary::-webkit-details-marker{display:none}details.faq summary:after{content:"+";background:var(--surface-soft);width:26px;height:26px;color:var(--link);border-radius:50%;flex:none;place-items:center;font-size:1.2rem;line-height:1;display:grid}details.faq[open] summary:after{content:"−"}details.faq[open] summary{border-bottom:1px solid var(--line)}details.faq p{margin:0;padding:14px 15px 18px}.sources{max-width:78ch;padding-left:1.4em;font-size:.89rem}.sources li{padding:5px 6px;scroll-margin-top:90px}.sources li+li{margin-top:3px}.sources li:target{background:var(--warning);border-radius:7px}.related{margin-top:44px}.cards{grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr));gap:13px;margin:12px 0;padding:0;list-style:none;display:grid}.cards li{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);min-width:0;box-shadow:var(--shadow-sm);padding:17px 18px;transition:border-color .18s,box-shadow .18s,transform .18s;position:relative}.cards li:hover{border-color:var(--line-strong);box-shadow:var(--shadow-md);transform:translateY(-2px)}.cards a{color:var(--link);font-weight:760;line-height:1.4;text-decoration:none}.cards a:after{content:"";border-radius:inherit;position:absolute;inset:0}.cards a:hover{text-decoration:underline}.cards p{color:var(--muted);margin:7px 0 0;font-size:.91rem;line-height:1.58}.notice{border:1px solid color-mix(in srgb, var(--focus) 55%, var(--line));border-radius:var(--radius-sm);background:var(--warning);max-width:none;margin:40px 0 12px;padding:15px 17px;font-size:.92rem}.foot{padding:34px 0 max(26px, env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--surface);color:var(--muted);margin-top:64px;font-size:.88rem}.foot-grid{grid-template-columns:minmax(230px,.8fr) minmax(300px,1.2fr);gap:24px 56px;display:grid}.foot-brand{color:var(--ink)}.foot-about p{margin:12px 0 0;line-height:1.55}.foot-links{grid-template-columns:repeat(2,minmax(130px,1fr));align-content:start;gap:7px 18px;display:grid}.foot-links a{width:fit-content}.foot-fine{border-top:1px solid var(--line);flex-wrap:wrap;grid-column:1/-1;align-items:center;gap:8px 18px;max-width:none;margin:0;padding-top:18px;display:flex}.foot-fine a{margin-left:auto}@media (width<=1180px){.nav-wide{display:none}.menu{display:block}}@media (width<=700px){body{font-size:16px;line-height:1.65}.top-row{min-height:60px}.brand{font-size:1rem}.hero{border-radius:18px;margin-top:16px;padding:26px 22px}.finder{grid-template-columns:1fr;padding:18px}.search-status{grid-column:1}.guide-group{margin-top:36px}.article-head{padding-top:14px}.facts{grid-template-columns:repeat(2,minmax(0,1fr))}.fact{padding:13px}.fact dd{font-size:1rem}.foot-grid{grid-template-columns:1fr}.foot-fine{grid-column:1}.foot-fine a{margin-left:0}}@media (width<=520px){.wrap{padding-inline:15px}h1{font-size:clamp(1.82rem,9vw,2.2rem)}.brand{gap:8px}.brand img{width:28px;height:28px}.top-row{gap:10px}.top-actions{gap:6px}.menu summary{padding-inline:10px}.menu summary span{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;font-size:.93rem;position:absolute;overflow:hidden}.crumbs{margin-top:13px}.finder{margin-inline:0}.search-field{flex-direction:column;align-items:stretch}.search-field button{width:100%}.facts{grid-template-columns:1fr}.jump{gap:7px}.jump a{min-height:42px}.content-section{margin-top:34px}.foot-links{grid-template-columns:1fr}}@media (width<=640px){table.stack thead{display:none}table.stack tr{border-bottom:1px solid var(--line);padding:9px 0;display:block}table.stack tr:last-child{border-bottom:0}table.stack td{border:0;padding:4px 13px;display:block}table.stack td[data-label]:before{content:attr(data-label);color:var(--muted);letter-spacing:.055em;text-transform:uppercase;margin-bottom:1px;font-size:.7rem;font-weight:750;display:block}table.stack td:empty{display:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition:none!important}}@media print{:root{--page:#fff;--surface:#fff;--surface-soft:#f3f4f6;--ink:#111827;--muted:#4b5563;--line:#d1d5db;--link:#111827}body{font-size:11pt;display:block}.top,.foot,.jump,.finder,.related,.notice{display:none!important}.wrap,.article{max-width:none;padding:0}a{color:inherit;text-decoration:none}.answer,.fact,.table-wrap,details.faq{break-inside:avoid;box-shadow:none}details.faq>*{display:block}}