:root{
  --ink:#111316;--muted:#666c74;--paper:#fff;--soft:#f4f5f6;--line:#e3e6e8;
  --accent:#e64833;--accent-dark:#b52f21;--cyan:#79d7ef;--night:#0d1115;
  --max:1120px;--radius:18px;--shadow:0 18px 50px rgba(20,24,28,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.skip{position:absolute;left:-999px;top:auto}.skip:focus{left:12px;top:12px;z-index:999;background:#fff;padding:10px 14px;border-radius:10px}
.topnote{background:#111;color:#fff;text-align:center;font-size:.85rem;padding:.55rem 1rem}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{max-width:var(--max);margin:auto;display:flex;align-items:center;gap:22px;padding:14px 20px}
.brand{text-decoration:none;font-weight:900;letter-spacing:-.04em;font-size:1.2rem;display:flex;align-items:center;gap:10px}
.brand-mark{width:28px;height:22px;border:3px solid var(--ink);border-radius:4px;position:relative;display:inline-block}
.brand-mark:after{content:"";position:absolute;width:11px;height:3px;background:var(--accent);bottom:-7px;left:5px;transform:skew(-20deg)}
.navlinks{margin-left:auto;display:flex;align-items:center;gap:18px;font-size:.94rem}
.navlinks a{text-decoration:none}.navlinks a:hover{text-decoration:underline}
.menu-btn{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:10px;font:inherit}
.btn,.cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-weight:800;border-radius:999px;padding:.84rem 1.16rem;transition:.18s ease}
.btn-primary,.cta{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.btn-primary:hover,.cta:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--line);background:#fff}
.hero{max-width:var(--max);margin:auto;padding:64px 20px 44px;display:grid;grid-template-columns:1.04fr .96fr;gap:42px;align-items:center}
.kicker{font-weight:850;letter-spacing:.1em;text-transform:uppercase;font-size:.78rem;color:var(--accent)}
h1,h2,h3{line-height:1.12;letter-spacing:-.035em;margin-top:0}
h1{font-size:clamp(2.35rem,5vw,4.8rem);margin-bottom:18px}
h2{font-size:clamp(1.7rem,3vw,2.55rem);margin-bottom:16px}
h3{font-size:1.18rem;margin-bottom:8px}
.lede{font-size:1.15rem;color:#3e444b;max-width:760px}
.hero-card{background:var(--soft);padding:18px;border-radius:26px;border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-card img{border-radius:18px;aspect-ratio:1/1;object-fit:cover}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 8px}
.disclosure{font-size:.83rem;color:var(--muted)}
main section,.section{max-width:var(--max);margin:auto;padding:50px 20px}
.band{background:var(--night);color:#fff}.band .section{padding-top:58px;padding-bottom:58px}
.band p{color:#d5d9dd}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff}
.card p:last-child{margin-bottom:0}
.metric{font-size:1.7rem;font-weight:900;letter-spacing:-.04em}
.muted{color:var(--muted)}
.article-shell{max-width:var(--max);margin:auto;padding:38px 20px 70px;display:grid;grid-template-columns:minmax(0,760px) 280px;gap:42px}
.article{min-width:0}
.article h1{font-size:clamp(2.15rem,4vw,3.8rem)}
.article h2{margin-top:44px}
.article h3{margin-top:28px}
.article p,.article li{font-size:1.03rem}
.article ul,.article ol{padding-left:1.25rem}
.article figure{margin:30px 0;background:var(--soft);padding:14px;border-radius:20px;border:1px solid var(--line)}
.article figure img{border-radius:13px;width:100%}
.article figcaption{font-size:.82rem;color:var(--muted);padding:10px 3px 0}
.breadcrumbs{font-size:.84rem;color:var(--muted);margin-bottom:18px}.breadcrumbs a{text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}
.callout,.evidence{border-left:4px solid var(--accent);background:#fff4f1;border-radius:0 14px 14px 0;padding:16px 18px;margin:24px 0}
.evidence{border-left-color:#2f7284;background:#eef9fb}
.table-wrap{overflow:auto;margin:24px 0}
table{border-collapse:collapse;width:100%;min-width:620px}
th,td{text-align:left;vertical-align:top;padding:13px 14px;border-bottom:1px solid var(--line)}
th{background:var(--soft);font-size:.9rem}
.sidebar{position:sticky;top:100px;align-self:start}
.sidebar-box{border:1px solid var(--line);border-radius:18px;padding:18px;background:var(--soft);margin-bottom:18px}
.sidebar-box img{border-radius:12px;margin-bottom:12px}
.related{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:16px}
.related a{display:block;text-decoration:none;border:1px solid var(--line);padding:14px;border-radius:12px;font-weight:700;background:#fff}
.related a:hover{border-color:#aaa}
.byline{color:var(--muted);font-size:.9rem;margin:-4px 0 22px}
.faq details{border-top:1px solid var(--line);padding:16px 0}.faq summary{cursor:pointer;font-weight:800}
.site-footer{border-top:1px solid var(--line);background:#f7f8f9}
.footer-inner{max-width:var(--max);margin:auto;padding:36px 20px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
.footer-inner a{text-decoration:none}.footer-inner a:hover{text-decoration:underline}
.footer-small{max-width:var(--max);margin:auto;padding:0 20px 28px;color:var(--muted);font-size:.82rem}
.pill{display:inline-block;border-radius:999px;padding:5px 9px;background:#edf0f2;font-size:.77rem;font-weight:800;margin:3px 4px 3px 0}
.popup{position:fixed;right:22px;bottom:22px;width:min(390px,calc(100vw - 28px));background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 80px rgba(0,0,0,.25);padding:18px;z-index:100;display:none}
.popup.show{display:block;animation:pop .22s ease-out}
@keyframes pop{from{transform:translateY(12px);opacity:0}to{transform:none;opacity:1}}
.popup-head{display:flex;align-items:start;gap:12px}.popup-head img{width:88px;border-radius:12px}.popup-close{margin-left:auto;border:0;background:#f0f1f2;border-radius:999px;width:32px;height:32px;font-size:20px;cursor:pointer}
.popup .cta{width:100%;margin-top:12px}
.mobile-cta{display:none}
.notice{background:#fff7dd;border:1px solid #f4dda0;border-radius:14px;padding:14px 16px}
.source-note{font-size:.85rem;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:38px}
@media (max-width:860px){
 .hero{grid-template-columns:1fr;padding-top:38px}.grid{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}
 .article-shell{grid-template-columns:1fr}.sidebar{position:static}
 .menu-btn{display:block}.navlinks{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:14px 20px;flex-direction:column;align-items:flex-start}
 .navlinks.open{display:flex}.navlinks .btn{width:100%}
 .footer-inner{grid-template-columns:1fr}
 .mobile-cta{display:block;position:fixed;left:10px;right:10px;bottom:10px;z-index:45}.mobile-cta .cta{width:100%;box-shadow:0 8px 30px rgba(0,0,0,.25)}
 body{padding-bottom:70px}
 .popup{right:14px;bottom:84px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}