@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/inter-400.woff2) format('woff2')}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/inter-600.woff2) format('woff2')}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/inter-700.woff2) format('woff2')}@font-face{font-family:Inter;font-style:normal;font-weight:800;font-display:swap;src:url(/fonts/inter-800.woff2) format('woff2')}
:root{--bg:#fff;--bg2:#f5f7fb;--ink:#0f1a2e;--ink2:#3d4a63;--mut:#64708a;--line:#e3e8f0;--card:#fff;--brand:#14213d;--blue:#2563b0;--blue2:#1d4f8f;--orange:#f5a623;--ok:#1d7a46;--bad:#b42318;--soft:#eef4fb;--shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px rgba(16,24,40,.07)}
@media (prefers-color-scheme:dark){:root{--bg:#0b1120;--bg2:#101829;--ink:#e8edf6;--ink2:#c3cde0;--mut:#98a4c0;--line:#223051;--card:#131c30;--blue:#5b9ae0;--blue2:#9cc4f2;--ok:#6fd39b;--bad:#ff8a80;--soft:#14213a;--shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.35)}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16.5px/1.65 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}a{color:var(--blue)}
.w{max-width:1160px;margin:0 auto;padding:0 20px}.wn{max-width:780px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:10px;font-weight:600;font-size:15.5px;text-decoration:none;border:1px solid transparent;cursor:pointer;font-family:inherit}
.btn-p{background:#2563b0;color:#fff;box-shadow:0 6px 16px rgba(37,99,176,.28)}.btn-p:hover{background:#1f57a0}
.btn-o{background:var(--orange);color:#14213d;font-weight:700}.btn-o:hover{background:#ffb53d}
.btn-g{background:transparent;color:var(--ink);border-color:var(--line)}.btn-sm{height:38px;padding:0 16px;font-size:14.5px}
header.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--ink);text-decoration:none}.logo img{width:34px;height:34px;border-radius:9px}
.links{display:flex;gap:24px;margin-left:14px}@media (max-width:1180px){.links{gap:16px;margin-left:6px}.links a{font-size:14.5px}}
.fcon a{display:block;color:var(--blue)!important;margin:0 0 4px}.fcon a[hidden]{display:none}.links a{color:var(--ink2);text-decoration:none;font-size:15px;font-weight:500}.links a:hover,.links a.on{color:var(--ink)}
.nav .sp{flex:1}.nav .in{color:var(--ink);text-decoration:none;font-weight:600;font-size:15px}
.menu{display:none;background:none;border:0;color:var(--ink);padding:8px;margin-right:-8px;cursor:pointer}
@media (max-width:900px){.links{display:none}.menu{display:block}.nav{gap:10px}.nav .in{display:inline-flex;align-items:center;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px}
 .links.open{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;margin:0;background:var(--bg);border-bottom:1px solid var(--line);padding:6px 20px 14px}.links.open a{padding:13px 0;border-bottom:1px solid var(--line)}}
@media (max-width:520px){.nav .js-cta{display:none}}
.crumbs{font-size:13.5px;color:var(--mut);padding:18px 0 0}.crumbs a{color:var(--mut);text-decoration:none}.crumbs a:hover{color:var(--ink)}.crumbs span{margin:0 6px}
.hero{padding:22px 0 34px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--soft),transparent)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--blue)}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.1;letter-spacing:-1.2px;margin:10px 0 14px;font-weight:800;text-wrap:balance}
.lead{font-size:clamp(17px,1.8vw,19.5px);color:var(--ink2);margin:0 0 22px;max-width:720px}
.meta{font-size:13.5px;color:var(--mut)}.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.prose{padding:34px 0 10px}.prose h2{font-size:clamp(23px,2.8vw,29px);line-height:1.2;letter-spacing:-.5px;margin:38px 0 12px;text-wrap:balance}.prose h3{font-size:19px;margin:26px 0 8px}
.prose p,.prose li{color:var(--ink2);text-wrap:pretty}.prose ul,.prose ol{padding-left:22px}.prose li{margin:6px 0}.prose strong{color:var(--ink)}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}.prose th{background:var(--bg2);font-weight:600;color:var(--ink)}
.note{background:var(--soft);border:1px solid color-mix(in srgb,var(--blue) 25%,transparent);border-radius:12px;padding:14px 16px;margin:20px 0;color:var(--ink2)}.note b{color:var(--ink)}
.warn{background:color-mix(in srgb,var(--orange) 12%,transparent);border:1px solid color-mix(in srgb,var(--orange) 40%,transparent);border-radius:12px;padding:14px 16px;margin:20px 0}
.toc{border:1px solid var(--line);border-radius:12px;padding:14px 18px;background:var(--bg2);margin:6px 0 10px;font-size:15px}.toc b{display:block;margin-bottom:4px}.toc ol{margin:0;padding-left:20px}.toc li{margin:3px 0}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:22px 0}@media (max-width:900px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:600px){.grid{grid-template-columns:minmax(0,1fr)}}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:var(--shadow);text-decoration:none;color:inherit;transition:transform .15s,border-color .15s}a.card:hover{transform:translateY(-2px);border-color:var(--blue)}
.card h3{margin:0 0 6px;font-size:17.5px;color:var(--ink)}.card p{margin:0;color:var(--ink2);font-size:15px}.card .tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-bottom:8px}
.shot{border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);margin:22px 0}
.ctab{margin:40px 0 10px;border-radius:18px;padding:30px 26px;background:linear-gradient(150deg,#14213d,#1f3a6b);color:#fff;text-align:center}.ctab h2{color:#fff;margin:0 0 8px!important}.ctab p{color:#c8d6ee!important;margin:0 auto 18px;max-width:560px}
.related{padding:10px 0 40px}.related h2{font-size:22px;margin:30px 0 4px}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}.faq summary{cursor:pointer;font-weight:600;padding:12px 0;color:var(--ink);list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:before{content:"+ ";color:var(--blue)}.faq details[open] summary:before{content:"– "}
.calc{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);margin:24px 0}
.calc .fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}@media (max-width:600px){.calc .fields{grid-template-columns:minmax(0,1fr)}}
.calc label{display:flex;flex-direction:column;gap:5px;font-size:14px;font-weight:600;color:var(--ink)}.calc label small{font-weight:400;color:var(--mut);font-size:13px}
.calc input,.calc select{font:inherit;font-size:16px;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);width:100%}
.calc input:focus,.calc select:focus{outline:2px solid var(--blue);outline-offset:1px}
.out{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}@media (max-width:600px){.out{grid-template-columns:minmax(0,1fr)}}
.out div{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:14px}.out span{display:block;font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--mut)}.out b{display:block;font-size:26px;letter-spacing:-.5px;margin-top:2px;font-variant-numeric:tabular-nums}.out .big{background:#14213d;border-color:#14213d}.out .big span{color:#c8d6ee}.out .big b{color:#fff}
.out .neg b{color:var(--bad)}
footer{border-top:1px solid var(--line);padding:40px 0 40px;margin-top:30px;background:var(--bg2);font-size:14.5px}
.fcols{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:24px}@media (max-width:900px){.fcols{grid-template-columns:repeat(2,minmax(0,1fr))}.fcols>div:first-child{grid-column:1/-1}}
.fcols b{display:block;margin-bottom:8px;color:var(--ink)}.fcols a{display:block;color:var(--mut);text-decoration:none;margin:5px 0}.fcols a:hover{color:var(--ink)}@media (max-width:600px){.fcols a{padding:8px 0;margin:0}.crumbs a{display:inline-block;padding:6px 0}}.fcols p{color:var(--mut);margin:8px 0}
.fbot{margin-top:26px;padding-top:16px;border-top:1px solid var(--line);color:var(--mut);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.nw{white-space:nowrap}
@media print{header.top,footer,.crumbs,.ctab,.related,.noprint{display:none!important}body{background:#fff;color:#000}.hero{background:none;border:0;padding:0}}