*{box-sizing:border-box}
body{margin:0;background:var(--surface);color:var(--main-ink);font:var(--fs,17px)/1.6 var(--body-font,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif)}
h1,h2,h3{font-family:var(--head-type,inherit);line-height:1.25}
h1{font-size:30px;margin:10px 0 8px}h2{font-size:22px;margin:32px 0 10px}h3{font-size:18px}
a{color:var(--brand-color)}a.jump{font-variant-numeric:tabular-nums;text-decoration:none;border-bottom:1px dotted}
img{max-width:100%}
.site-head,.footer-bar,.content{max-width:var(--max-w,820px);margin:0 auto;padding:0 20px}
.site-head{display:flex;align-items:center;gap:14px;padding-top:9px;padding-bottom:9px;color:var(--muted);font-size:14px}
.site-head h1{margin:0}
.content:first-child{padding-top:24px}
.site-name{color:var(--main-ink);text-decoration:none;font-weight:700;font-size:18px}.site-name .mark{margin-right:8px}
.site-name .mark:only-child{margin-right:0}
.footer-bar{padding-top:16px;padding-bottom:28px;color:var(--muted);font-size:14px}
.content{padding-bottom:40px}
.lead-text{color:var(--muted);margin:0 0 24px}
.credits{color:var(--muted);font-size:14px;margin:0 0 20px}
.nav-path{font-size:14px;color:var(--muted);margin:16px 0 0}.nav-path a{color:var(--muted)}
.tube{display:block;position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--corner,10px);overflow:hidden;margin:24px 0 6px}
.tube img.screen{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85;display:block}
.tube img{width:100%;height:100%;object-fit:cover;opacity:.85;display:block}
.tube iframe{position:relative;z-index:1;width:100%;height:100%;border:0;display:block}
.tube.pending::before{content:"";position:absolute;inset:0;background:rgba(0,0,0,.45);z-index:2;pointer-events:none}
.tube.pending::after{content:"";position:absolute;left:50%;top:50%;width:26px;height:26px;margin:-13px 0 0 -13px;
border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;z-index:3;pointer-events:none;
animation:turn .8s linear infinite}
@keyframes turn{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.tube.pending::after{animation-duration:2.4s}}
.frame-note,.source{font-size:14px;color:var(--muted)}.frame-note{margin:0 0 20px}
.video-link{display:block;text-decoration:none}
.video-link>a{display:block;width:100%;height:100%}
.video-link .start{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);box-sizing:border-box;z-index:2;padding:0;cursor:pointer;
width:var(--start-w,72px);height:var(--start-h,50px);border-radius:var(--start-radius,14px);
background:var(--start-bg,rgba(17,17,17,.74));border:var(--start-border,0);box-shadow:var(--start-shadow,0 2px 12px rgba(0,0,0,.3));
display:flex;align-items:center;justify-content:center;transition:transform .15s,filter .15s}
.video-link .start::after{content:"";display:block;margin-left:calc(var(--start-h,50px)*.06);border-style:solid;
border-width:calc(var(--start-h,50px)*.21) 0 calc(var(--start-h,50px)*.21) calc(var(--start-h,50px)*.34);
border-color:transparent transparent transparent var(--start-ink,#fff)}
.video-link .start:hover,.video-link .start:focus-visible{transform:translate(-50%,-50%) scale(1.07);filter:brightness(1.1)}
.card .video-link .start{width:var(--start-w-m,58px);height:var(--start-h-m,40px);border-radius:var(--start-radius-m,12px)}
.card .video-link .start::after{margin-left:calc(var(--start-h-m,40px)*.06);
border-width:calc(var(--start-h-m,40px)*.21) 0 calc(var(--start-h-m,40px)*.21) calc(var(--start-h-m,40px)*.34)}
.source{border-top:1px solid var(--divider);padding-top:12px;margin-top:28px}
.highlights{background:var(--panel-bg,#f4f7fb);border-left:4px solid var(--brand-color);border-radius:var(--corner,8px);padding:12px 18px;margin:20px 0}.highlights h2{margin:0 0 8px;font-size:18px}.highlights ul{margin:0;padding-left:20px}
.outline{margin:20px 0}.outline summary{cursor:pointer;font-weight:600}.outline ol{margin:8px 0 0;padding-left:22px;font-size:15px}.outline a{text-decoration:none}
.answers details{border-top:1px solid var(--divider);padding:10px 0}.answers summary{cursor:pointer;font-weight:600}
.also{margin-top:36px}.also h2{font-size:20px}.also ul{padding-left:20px}.also li{margin:8px 0}.also span{color:var(--muted);font-size:15px}
.pager{display:flex;justify-content:space-between;gap:16px;font-size:15px;margin-top:24px;padding-top:12px;border-top:1px solid var(--divider)}.pager a[rel=next]{margin-left:auto;text-align:right}
blockquote{border-left:3px solid var(--brand-color);margin:16px 0;padding:4px 16px;color:var(--muted)}
hr{border:0;border-top:1px solid var(--divider);margin:28px 0}
table{border-collapse:collapse;width:100%;font-size:15px}td,th{border:1px solid var(--divider);padding:6px 10px;text-align:left}
.items{display:grid;gap:28px}
.card{background:var(--panel-bg,transparent);border-radius:var(--corner,8px);box-shadow:var(--item-shadow,none);border:var(--panel-border,0)}
.card .tube{margin:0}
.card-text{padding:var(--card-pad,10px 0 0)}
.card h2{margin:0 0 6px;font-size:20px}.card h2 a{color:var(--main-ink);text-decoration:none}
.card h2 a:hover,.card h2 a:focus-visible{color:var(--brand-color);text-decoration:underline;text-underline-offset:3px}
.card p{margin:0 0 6px;color:var(--muted);font-size:15px}.card time{font-size:13px;color:var(--muted)}
.card p.abstract{color:var(--main-ink);font-size:16px;line-height:1.6;margin:0 0 10px}.hero-view .card.hero p.abstract{font-size:17px}
.view-grid .items{grid-template-columns:minmax(0,1fr)}
@media(min-width:668px){.view-grid .items{grid-template-columns:repeat(2,minmax(0,1fr))}}
.hero-view .items{grid-template-columns:minmax(0,1fr)}
@media(min-width:628px){.hero-view .items{grid-template-columns:repeat(2,minmax(0,1fr))}}
.hero-view .card.hero{grid-column:1/-1}.hero-view .card.hero h2{font-size:28px}
.m-row .items,.row-alt .items{gap:22px}
.m-row .card,.row-alt .card{display:grid;grid-template-columns:240px minmax(0,1fr);align-items:start;gap:18px;overflow:hidden}
.card>:only-child{grid-column:1/-1}
.pagination{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;margin:34px 0 10px}
.pagination a,.pagination b{display:inline-block;min-width:40px;padding:8px 12px;text-align:center;border-radius:var(--corner,8px);
border:1px solid var(--divider);text-decoration:none;color:var(--main-ink);font-size:15px;line-height:1.2}
.pagination a:hover{border-color:var(--brand-color);color:var(--brand-color)}
.pagination b{background:var(--brand-color);border-color:var(--brand-color);color:var(--surface)}
.pagination span{color:var(--muted);padding:0 2px}
.row-alt .card{grid-template-columns:minmax(0,1fr) 240px}
.row-alt .card>.video-link{order:2}
.m-row .card-text,.row-alt .card-text{padding:var(--card-pad,4px 12px 12px 0)}
.m-row .card h2,.row-alt .card h2{font-size:19px}
@media(max-width:700px){.m-row .card,.row-alt .card{grid-template-columns:minmax(0,1fr)}.row-alt .card>.video-link{order:0}}
.layout-duo .items{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media(max-width:700px){.layout-duo .items{grid-template-columns:minmax(0,1fr)}}
.dense-view .items{grid-template-columns:minmax(0,1fr);gap:18px}
@media(min-width:498px){.dense-view .items{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:736px){.dense-view .items{grid-template-columns:repeat(3,minmax(0,1fr))}}
.dense-view .card h2{font-size:17px}.dense-view .card p{font-size:14px}
.m-wide .items{grid-template-columns:minmax(0,1fr);gap:34px}
.m-wide .card h2{font-size:24px}
.m-wide .card.hero h2{font-size:30px}
@media(min-width:498px) and (max-width:735.98px){
.dense-view .card:nth-child(2n+1):last-child{grid-column:span 2;display:grid;grid-template-columns:calc((100% - 18px)/2) minmax(0,1fr);column-gap:18px;align-items:start}
}
@media(min-width:736px){
.dense-view .card:nth-child(3n+1):last-child{grid-column:span 3;display:grid;grid-template-columns:calc((100% - 36px)/3) minmax(0,1fr);column-gap:18px;align-items:start}
.dense-view .card:nth-child(3n+2):last-child{grid-column:span 2;display:grid;grid-template-columns:calc((100% - 18px)/2) minmax(0,1fr);column-gap:18px;align-items:start}
}
@media(min-width:668px){
.view-grid .card:nth-child(2n+1):last-child{grid-column:span 2;display:grid;grid-template-columns:calc((100% - 28px)/2) minmax(0,1fr);column-gap:28px;align-items:start}
}
@media(min-width:628px){
.hero-view .card:nth-child(2n+1 of .card:not(.hero)):last-child{grid-column:span 2;display:grid;grid-template-columns:calc((100% - 28px)/2) minmax(0,1fr);column-gap:28px;align-items:start}
}
@media not all and (max-width:700px){
.layout-duo .card:nth-child(2n+1):last-child{grid-column:span 2;display:grid;grid-template-columns:calc((100% - 24px)/2) minmax(0,1fr);column-gap:24px;align-items:start}
}
.l-rail.p-post .content{max-width:calc(var(--max-w,820px) + 300px)}
.body-wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;overflow-wrap:anywhere}
.l-rail .body-wrap{grid-template-columns:minmax(0,1fr) 260px}
.l-rail .sidebar{position:sticky;top:20px;align-self:start;font-size:15px}
.l-rail .sidebar .outline{margin:0 0 24px}.l-rail .sidebar .also{margin-top:0}.l-rail .sidebar .also h2{font-size:17px;margin-top:0}.l-rail .sidebar .also ul{padding-left:18px}.l-rail .sidebar .also span{display:none}
@media(max-width:900px){.l-rail .body-wrap{grid-template-columns:minmax(0,1fr)}.l-rail .sidebar{position:static}.l-rail.p-post .content{max-width:var(--max-w,820px)}}
@media(max-width:600px){body{font-size:16px}h1{font-size:24px}.hero-view .card.hero h2{font-size:22px}}

:root{--surface:#f6f1ec;--main-ink:#2e2119;--muted:#7d6a5c;--brand-color:#8a5a2b;--divider:#e6dbcf;--panel-bg:#fffaf5;--corner:12px;
--body-font:"Segoe UI",system-ui,Roboto,sans-serif;--head-type:Georgia,"Times New Roman",serif;
--start-bg:#8a5a2b;--start-ink:#fff;--start-radius:12px;--start-border:0}
.card{box-shadow:0 2px 8px rgba(80,55,35,.08)}
h1,h2{color:#4a3520}
.highlights{background:#f0e4d8}
.footer-bar{border-top:1px solid var(--divider)}