:root{--bd-ink:#151719;--bd-muted:#555b61;--bd-paper:#f5f4ef;--bd-line:#d8d9d5;--bd-red:#b52620;--bd-mono:'Share Tech Mono',monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bd-paper);color:var(--bd-ink);font-family:Inter,Arial,sans-serif}img{max-width:100%;height:auto}button,a,input,summary{-webkit-tap-highlight-color:transparent}a{color:inherit}a:focus-visible,summary:focus-visible{outline:3px solid #1b55e3;outline-offset:5px}#main-nav{position:relative}ul{padding-left:1.3em}h1,h2,h3,p,figure{margin:0}
.bd-skip{position:absolute;left:16px;top:-100px;z-index:1200;background:white;padding:14px}.bd-skip:focus{top:12px}.bd-guide{--xeon-title-size:clamp(38px,4.6vw,70px);--xeon-section-size:clamp(28px,3vw,42px)}.bd-hero{display:grid;grid-template-columns:1fr 1fr;max-width:1600px;margin:auto;border-bottom:1px solid var(--bd-line)}.bd-hero-copy{padding:34px clamp(24px,4vw,64px) 56px}.bd-breadcrumb{display:flex;flex-wrap:wrap;gap:9px;font-size:11px;color:var(--bd-muted);line-height:1.7;margin-bottom:48px}.bd-breadcrumb a{text-underline-offset:4px}.bd-eyebrow{font-family:var(--bd-mono);font-size:11px!important;letter-spacing:.12em;line-height:1.5!important;text-transform:uppercase;color:var(--bd-red);margin:0 0 20px!important}.bd-hero h1{margin-bottom:24px}.bd-hero h1 span{color:var(--bd-red)}.bd-deck{font-size:18px;line-height:1.7;max-width:560px;color:var(--bd-muted)}.bd-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:11px;color:var(--bd-muted);margin:24px 0 30px}.bd-button{display:inline-flex;gap:30px;align-items:center;justify-content:space-between;background:var(--bd-ink);color:#fff;padding:15px 21px;text-decoration:none;font-size:13px;font-weight:600;border:1px solid var(--bd-ink)}.bd-button:hover{background:var(--bd-red);border-color:var(--bd-red)}.bd-hero-image{display:flex;flex-direction:column;justify-content:center;background:#fff;border-left:1px solid var(--bd-line);min-width:0}.bd-hero-image img{display:block;width:100%;height:auto}.bd-hero-image figcaption{border-top:1px solid var(--bd-line);padding:22px 30px;color:var(--bd-muted);font-size:12px;line-height:1.7}.bd-hero-image figcaption span{display:block;color:var(--bd-ink);font-weight:600;font-size:14px;margin-bottom:5px}
.bd-takeaway{max-width:1600px;margin:auto;background:#191c20;color:#f4f4ef;padding:30px clamp(24px,4vw,64px);display:grid;grid-template-columns:240px 1fr;gap:30px}.bd-takeaway .bd-eyebrow{color:#e5b1aa;margin:4px 0!important}.bd-takeaway>p:last-child{font-size:17px;line-height:1.7;max-width:970px}.bd-takeaway strong{color:white}
.bd-layout{display:grid;grid-template-columns:230px minmax(0,920px);justify-content:center;gap:60px;max-width:1400px;margin:auto;padding:64px 32px 80px}.bd-toc{position:sticky;top:30px;align-self:start;border-top:2px solid var(--bd-ink);padding-top:22px}.bd-toc a{display:block;text-decoration:none;font-size:13px;line-height:1.5;padding:11px 0;border-bottom:1px solid var(--bd-line);color:var(--bd-muted)}.bd-toc a:hover{color:var(--bd-red)}.bd-article{min-width:0}.bd-article section{scroll-margin-top:30px;margin-bottom:64px}.bd-article h2{margin:0 0 25px}.bd-article h3{font-size:22px;line-height:1.3;margin:32px 0 16px}.bd-article p{font-size:16px;line-height:1.8;color:var(--bd-muted);margin:0 0 20px;max-width:80ch}.bd-article p a,.bd-article li a{text-decoration-thickness:1px;text-underline-offset:3px}.bd-article a:hover{color:var(--bd-red)}.bd-note{margin:30px 0;padding:25px 28px;border-left:3px solid var(--bd-red);background:#eaeae4}.bd-note>strong{display:block;font-size:17px;margin-bottom:10px}.bd-note p{margin:0;font-size:15px}.bd-article .bd-image-note{font-size:13px;border-left:2px solid var(--bd-line);padding-left:18px}.bd-figure{background:#fff;border:1px solid var(--bd-line);margin:28px 0}.bd-figure img{display:block;width:100%;height:auto}.bd-figure figcaption{border-top:1px solid var(--bd-line);padding:18px 22px;font-size:13px;line-height:1.7;color:var(--bd-muted)}.bd-figure figcaption span{display:block;font-family:var(--bd-mono);font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--bd-red);margin-bottom:6px}.bd-image-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}.bd-image-pair .bd-figure{margin-top:0}.bd-section-view img{max-height:620px;object-fit:contain}.bd-video video{display:block;width:100%;aspect-ratio:16/9;background:#111;object-fit:contain}
.bd-table-wrap{overflow-x:auto;margin:30px 0;border:1px solid var(--bd-line)}.bd-table-wrap table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.6;min-width:570px}.bd-table-wrap caption{text-align:left;padding:18px 20px;font-size:14px;background:#eaeae4;font-weight:600}.bd-table-wrap th,.bd-table-wrap td{text-align:left;padding:18px;border-bottom:1px solid var(--bd-line);vertical-align:top}.bd-table-wrap thead{background:var(--bd-ink);color:#fff}.bd-table-wrap tbody th{width:23%;font-weight:600}.bd-table-wrap tbody td{color:var(--bd-muted)}.bd-steps{padding:0;list-style:none;counter-reset:fix}.bd-steps li{counter-increment:fix;position:relative;padding:25px 0 10px 57px;border-top:1px solid var(--bd-line)}.bd-steps li:before{content:'0' counter(fix);font-family:var(--bd-mono);color:var(--bd-red);position:absolute;left:0;top:28px;font-size:18px}.bd-steps h3{margin:0 0 10px}.bd-checklist{padding-left:22px}.bd-checklist li{padding:9px 0;font-size:16px;line-height:1.7;color:var(--bd-muted)}.bd-cta{background:var(--bd-ink);color:#fff;margin-top:38px;padding:34px}.bd-cta .bd-eyebrow{color:#e5b1aa}.bd-cta h3{margin:0 0 16px;font-size:30px}.bd-cta p{color:#d0d1d2}.bd-actions{display:flex;align-items:center;flex-wrap:wrap;gap:22px;margin-top:26px}.bd-actions .bd-button{background:#fff;color:var(--bd-ink);border-color:#fff}.bd-actions>a:last-child{font-size:13px;color:#fff}.bd-faq{border-top:1px solid var(--bd-line);padding:21px 0}.bd-faq summary{cursor:pointer;font-size:18px;font-weight:500;line-height:1.5}.bd-faq p{padding-top:16px;margin:0}.bd-sources{padding-top:32px;border-top:1px solid var(--bd-line)}.bd-sources li{font-size:13px;line-height:1.7;margin-bottom:10px}.bd-sources p{font-size:13px}.rel-guides{padding:0 24px 40px!important}
@media(max-width:1100px){.bd-layout{grid-template-columns:190px minmax(0,1fr);gap:36px}.bd-hero-copy{padding-left:28px;padding-right:28px}.bd-takeaway{grid-template-columns:190px 1fr}.bd-breadcrumb{margin-bottom:30px}}
@media(max-width:800px){.bd-hero{grid-template-columns:1fr}.bd-hero-image{border-left:0;border-top:1px solid var(--bd-line)}.bd-hero-image img{max-height:550px;object-fit:contain}.bd-layout{display:block;padding:38px 22px 50px}.bd-toc{position:static;margin-bottom:44px}.bd-toc a{display:inline-block;margin-right:22px}.bd-takeaway{display:block;padding:28px}.bd-takeaway .bd-eyebrow{margin-bottom:14px!important}.bd-image-pair{grid-template-columns:1fr 1fr;gap:12px}.bd-hero-copy{padding:25px 24px 38px}}
@media(max-width:520px){.bd-guide{--xeon-title-size:38px}.bd-image-pair{grid-template-columns:1fr}.bd-hero-image figcaption{padding:18px 22px}.bd-note{padding:22px}.bd-steps li{padding-left:42px}.bd-cta{padding:26px}.bd-article section{margin-bottom:48px}.bd-section-view img{max-height:480px}.bd-figure figcaption{padding:16px}.bd-deck{font-size:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}