:root{--fb-ink:#101828;--fb-muted:#667085;--fb-line:#e4e7ec;--fb-blue:#155eef;--fb-blue-dark:#004eeb;--fb-soft:#f5f8ff;--fb-radius:22px}
.fb-page,.fb-article{width:min(100% - 32px,1240px);margin:0 auto;padding:28px 0 80px;color:var(--fb-ink)}
.fb-breadcrumb{display:flex;align-items:center;gap:9px;min-width:0;margin:0 0 42px;color:#7a8496;font-size:13px}
.fb-breadcrumb a{color:#475467;text-decoration:none}
.fb-breadcrumb span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fb-eyebrow{display:block;margin-bottom:10px;color:var(--fb-blue);font-size:12px;font-weight:750;letter-spacing:.14em;text-transform:uppercase}
.fb-intro{display:grid;grid-template-columns:minmax(0,760px);gap:16px;margin-bottom:34px}
.fb-intro h1,.fb-article-header h1{margin:0;font-size:clamp(38px,6vw,72px);font-weight:760;letter-spacing:-.045em;line-height:1.02}
.fb-intro p{max-width:680px;margin:0;color:var(--fb-muted);font-size:18px;line-height:1.7}
.fb-topics{display:flex;gap:10px;margin:0 -4px 42px;padding:4px;overflow-x:auto;scrollbar-width:none}
.fb-topics::-webkit-scrollbar{display:none}
.fb-topic{flex:none;padding:10px 17px;border:1px solid var(--fb-line);border-radius:999px;background:#fff;color:#344054;font-size:14px;font-weight:650;text-decoration:none;transition:border-color .2s,color .2s,background .2s}
.fb-topic:hover,.fb-topic.is-active{border-color:var(--fb-blue);background:var(--fb-blue);color:#fff}
.fb-feature{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(320px,.85fr);min-height:510px;margin-bottom:80px;border:1px solid var(--fb-line);border-radius:var(--fb-radius);overflow:hidden;background:#fff;box-shadow:0 18px 50px rgba(16,24,40,.08)}
.fb-feature-media,.fb-card-media{display:block;overflow:hidden;background:linear-gradient(135deg,#dbe7ff,#eef4ff)}
.fb-feature-media img,.fb-card-media img,.fb-article-hero img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.fb-feature:hover .fb-feature-media img,.fb-card:hover .fb-card-media img{transform:scale(1.025)}
.fb-image-placeholder{display:block;width:100%;height:100%;min-height:260px;background:radial-gradient(circle at 20% 20%,#fff 0,transparent 32%),linear-gradient(135deg,#d9e5ff,#f5f8ff)}
.fb-feature-copy{display:flex;flex-direction:column;justify-content:center;padding:clamp(30px,5vw,62px)}
.fb-feature-copy h2{margin:0 0 18px;font-size:clamp(30px,3.4vw,48px);font-weight:750;letter-spacing:-.035em;line-height:1.08}
.fb-feature-copy h2 a,.fb-card h3 a{color:inherit;text-decoration:none}
.fb-feature-copy>p{margin:0 0 24px;color:var(--fb-muted);font-size:16px;line-height:1.7}
.fb-meta{display:flex;flex-wrap:wrap;gap:7px 16px;color:#7a8496;font-size:13px}
.fb-meta>*+*{position:relative}
.fb-meta>*+*:before{content:"";position:absolute;left:-9px;top:50%;width:3px;height:3px;border-radius:50%;background:#b3bac5}
.fb-read-link{display:inline-flex;align-items:center;gap:8px;width:max-content;margin-top:28px;color:var(--fb-blue);font-weight:700;text-decoration:none}
.fb-read-link span{transition:transform .2s}
.fb-read-link:hover span{transform:translateX(4px)}
.fb-section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}
.fb-section-heading h2{margin:0;font-size:clamp(30px,4vw,46px);letter-spacing:-.035em}
.fb-section-heading>span{padding-bottom:5px;color:var(--fb-muted);font-size:14px}
.fb-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.fb-card{display:flex;min-width:0;flex-direction:column;border:1px solid var(--fb-line);border-radius:18px;overflow:hidden;background:#fff;transition:transform .25s,box-shadow .25s,border-color .25s}
.fb-card:hover{transform:translateY(-5px);border-color:#c9d6f4;box-shadow:0 18px 40px rgba(16,24,40,.09)}
.fb-card-media{aspect-ratio:16/10}
.fb-card-body{display:flex;flex:1;flex-direction:column;padding:24px}
.fb-card h3{margin:14px 0 12px;font-size:22px;font-weight:730;letter-spacing:-.025em;line-height:1.25}
.fb-card p{margin:0;color:var(--fb-muted);font-size:15px;line-height:1.65}
.fb-card .fb-read-link{margin-top:auto;padding-top:22px}
.fb-pagination{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:52px;padding-top:24px;border-top:1px solid var(--fb-line);color:var(--fb-muted);font-size:14px}
.fb-pagination a{padding:10px 15px;border:1px solid var(--fb-line);border-radius:10px;color:var(--fb-ink);font-weight:650;text-decoration:none}
.fb-empty{padding:70px 24px;border:1px dashed var(--fb-line);border-radius:var(--fb-radius);text-align:center}
.fb-reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease var(--fb-delay,0ms),transform .55s cubic-bezier(.2,.8,.2,1) var(--fb-delay,0ms)}
.fb-reveal.is-visible{opacity:1;transform:none}
.fb-progress{position:fixed;z-index:50;top:0;left:0;width:100%;height:3px;pointer-events:none}
.fb-progress span{display:block;width:100%;height:100%;transform:scaleX(0);transform-origin:left;background:linear-gradient(90deg,var(--fb-blue),#58a6ff)}
.fb-article{width:min(100% - 32px,1380px)}
.fb-article-header{width:min(100%,980px);margin:0 auto 46px;text-align:center}
.fb-article-categories{display:flex;justify-content:center;gap:9px;margin-bottom:22px}
.fb-article-categories a{padding:7px 12px;border-radius:999px;background:var(--fb-soft);color:var(--fb-blue);font-size:12px;font-weight:750;text-decoration:none;text-transform:uppercase}
.fb-article-deck{max-width:780px;margin:24px auto 0;color:var(--fb-muted);font-size:clamp(18px,2vw,22px);line-height:1.65}
.fb-article-deck p{margin:0}
.fb-article-byline{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;margin-top:28px;color:#667085;font-size:14px}
.fb-article-hero{aspect-ratio:16/9;max-height:760px;margin:0 0 64px;border-radius:var(--fb-radius);overflow:hidden;background:var(--fb-soft)}
.fb-article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;justify-content:center;gap:48px;align-items:start}
.fb-prose{grid-column:1}
.fb-article-aside{grid-column:2}
.fb-article-layout.has-toc{grid-template-columns:220px minmax(0,760px) 260px}
.fb-article-layout.has-toc .fb-toc{grid-column:1}
.fb-article-layout.has-toc .fb-prose{grid-column:2}
.fb-article-layout.has-toc .fb-article-aside{grid-column:3}
.fb-toc{position:sticky;top:110px;padding-right:20px;border-right:1px solid var(--fb-line)}
.fb-toc nav{display:grid;gap:5px}
.fb-toc a{padding:7px 10px;border-left:2px solid transparent;color:#667085;font-size:13px;line-height:1.4;text-decoration:none}
.fb-toc a.is-active{border-color:var(--fb-blue);color:var(--fb-blue);font-weight:700}
.fb-prose{min-width:0;color:#344054;font-size:17px;line-height:1.82}
.fb-prose>:first-child{margin-top:0}
.fb-prose h2,.fb-prose h3{scroll-margin-top:100px;color:var(--fb-ink);font-weight:740;letter-spacing:-.025em;line-height:1.25}
.fb-prose h2{margin:50px 0 18px;font-size:32px}
.fb-prose h3{margin:36px 0 14px;font-size:24px}
.fb-prose p,.fb-prose ul,.fb-prose ol{margin:0 0 24px}
.fb-prose ul,.fb-prose ol{padding-left:25px}
.fb-prose a{color:var(--fb-blue);text-decoration:underline;text-underline-offset:3px}
.fb-prose img{max-width:100%;height:auto;margin:28px auto;border-radius:14px}
.fb-prose table{display:block;width:100%;margin:30px 0;overflow-x:auto;border-collapse:collapse;font-size:15px}
.fb-prose th,.fb-prose td{padding:12px 14px;border:1px solid var(--fb-line);text-align:left}
.fb-prose th{background:var(--fb-soft);color:var(--fb-ink)}
.fb-prose blockquote{margin:32px 0;padding:20px 24px;border-left:4px solid var(--fb-blue);border-radius:0 12px 12px 0;background:var(--fb-soft);color:#344054}
.fb-article-aside{position:sticky;top:110px}
.fb-help-card{padding:26px;border-radius:18px;background:#0c2a55;color:#fff}
.fb-help-card .fb-eyebrow{color:#9cc2ff}
.fb-help-card h2{margin:0 0 14px;font-size:24px;line-height:1.2}
.fb-help-card p{margin:0;color:#cfddf3;font-size:14px;line-height:1.65}
.fb-help-card a{display:inline-block;margin-top:20px;color:#fff;font-weight:700;text-decoration:none}
.fb-author{display:flex;gap:22px;width:min(100%,760px);margin:72px auto 0;padding:30px;border:1px solid var(--fb-line);border-radius:18px;background:#fff}
.fb-author img,.fb-author-initial{flex:0 0 80px;width:80px;height:80px;border-radius:50%}
.fb-author-initial{display:grid;place-items:center;background:var(--fb-soft);color:var(--fb-blue);font-size:30px;font-weight:750}
.fb-author h2{margin:0 0 4px;font-size:24px}
.fb-author p{margin:8px 0 0;color:var(--fb-muted);line-height:1.6}
@media(max-width:1100px){.fb-article-layout,.fb-article-layout.has-toc{grid-template-columns:minmax(0,760px) 260px}
.fb-article-layout.has-toc .fb-prose{grid-column:1}
.fb-article-layout.has-toc .fb-article-aside{grid-column:2}
.fb-toc{display:none!important}
}
@media(max-width:900px){.fb-feature{grid-template-columns:1fr;min-height:0}
.fb-feature-media{aspect-ratio:16/9}
.fb-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.fb-article-layout,.fb-article-layout.has-toc{grid-template-columns:minmax(0,760px)}
.fb-prose,.fb-article-aside,.fb-article-layout.has-toc .fb-prose,.fb-article-layout.has-toc .fb-article-aside{grid-column:1}
.fb-article-aside{position:static}
.fb-help-card{margin-top:36px}
}
@media(max-width:620px){.fb-page,.fb-article{width:min(100% - 24px,1240px);padding-top:18px}
.fb-breadcrumb{margin-bottom:28px}
.fb-intro h1,.fb-article-header h1{font-size:39px}
.fb-intro p{font-size:16px}
.fb-topics{margin-bottom:30px}
.fb-feature{margin-bottom:56px;border-radius:16px}
.fb-feature-copy{padding:28px 22px}
.fb-grid{grid-template-columns:1fr;gap:20px}
.fb-section-heading>span{display:none}
.fb-card-body{padding:21px}
.fb-pagination{flex-wrap:wrap}
.fb-article-header{margin-bottom:32px;text-align:left}
.fb-article-categories,.fb-article-byline{justify-content:flex-start}
.fb-article-hero{margin-bottom:38px;border-radius:14px}
.fb-prose{font-size:16px;line-height:1.75}
.fb-prose h2{font-size:28px}
.fb-author{align-items:flex-start;padding:22px}
.fb-author img,.fb-author-initial{flex-basis:58px;width:58px;height:58px}
}
@media(prefers-reduced-motion:reduce){.fb-reveal{opacity:1;transform:none;transition:none}
.fb-feature-media img,.fb-card-media img,.fb-read-link span,.fb-card{transition:none}
}