*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--fg);font:var(--base-size,17px)/1.6 var(--type,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif)}
h1,h2,h3{font-family:var(--font-head,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(--primary)}a.ts{font-variant-numeric:tabular-nums;text-decoration:none;border-bottom:1px dotted}
img{max-width:100%}
.brand-row,.site-foot,.main-area{max-width:var(--page-w,820px);margin:0 auto;padding:0 20px}
.brand-row{display:flex;align-items:center;gap:14px;padding-top:9px;padding-bottom:9px;color:var(--dim);font-size:14px}
.brand-row h1{margin:0}
.main-area:first-child{padding-top:24px}
.title-link{color:var(--fg);text-decoration:none;font-weight:700;font-size:18px}.title-link .glyph{margin-right:8px}
.title-link .glyph:only-child{margin-right:0}
.site-foot{padding-top:16px;padding-bottom:28px;color:var(--dim);font-size:14px}
.main-area{padding-bottom:40px}
.intro{color:var(--dim);margin:0 0 24px}
.stamp{color:var(--dim);font-size:14px;margin:0 0 20px}
.crumbs{font-size:14px;color:var(--dim);margin:16px 0 0}.crumbs a{color:var(--dim)}
.clip{display:block;position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--bevel,10px);overflow:hidden;margin:24px 0 6px}
.clip img.thumb{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85;display:block}
.clip img{width:100%;height:100%;object-fit:cover;opacity:.85;display:block}
.clip iframe{position:relative;z-index:1;width:100%;height:100%;border:0;display:block}
.clip.loading::before{content:"";position:absolute;inset:0;background:rgba(0,0,0,.45);z-index:2;pointer-events:none}
.clip.loading::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){.clip.loading::after{animation-duration:2.4s}}
.media-note,.ref{font-size:14px;color:var(--dim)}.media-note{margin:0 0 20px}
.embed-link{display:block;text-decoration:none}
.embed-link>a{display:block;width:100%;height:100%}
.embed-link .play-btn{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);box-sizing:border-box;z-index:2;padding:0;cursor:pointer;
width:var(--play-btn-w,72px);height:var(--play-btn-h,50px);border-radius:var(--play-btn-radius,14px);
background:var(--play-btn-bg,rgba(17,17,17,.74));border:var(--play-btn-border,0);box-shadow:var(--play-btn-shadow,0 2px 12px rgba(0,0,0,.3));
display:flex;align-items:center;justify-content:center;transition:transform .15s,filter .15s}
.embed-link .play-btn::after{content:"";display:block;margin-left:calc(var(--play-btn-h,50px)*.06);border-style:solid;
border-width:calc(var(--play-btn-h,50px)*.21) 0 calc(var(--play-btn-h,50px)*.21) calc(var(--play-btn-h,50px)*.34);
border-color:transparent transparent transparent var(--play-btn-ink,#fff)}
.embed-link .play-btn:hover,.embed-link .play-btn:focus-visible{transform:translate(-50%,-50%) scale(1.07);filter:brightness(1.1)}
.tile .embed-link .play-btn{width:var(--play-btn-w-m,58px);height:var(--play-btn-h-m,40px);border-radius:var(--play-btn-radius-m,12px)}
.tile .embed-link .play-btn::after{margin-left:calc(var(--play-btn-h-m,40px)*.06);
border-width:calc(var(--play-btn-h-m,40px)*.21) 0 calc(var(--play-btn-h-m,40px)*.21) calc(var(--play-btn-h-m,40px)*.34)}
.ref{border-top:1px solid var(--divider);padding-top:12px;margin-top:28px}
.digest{background:var(--cell-bg,#f4f7fb);border-left:4px solid var(--primary);border-radius:var(--bevel,8px);padding:12px 18px;margin:20px 0}.digest h2{margin:0 0 8px;font-size:18px}.digest ul{margin:0;padding-left:20px}
.toc{margin:20px 0}.toc summary{cursor:pointer;font-weight:600}.toc ol{margin:8px 0 0;padding-left:22px;font-size:15px}.toc a{text-decoration:none}
.answers details{border-top:1px solid var(--divider);padding:10px 0}.answers summary{cursor:pointer;font-weight:600}
.more-posts{margin-top:36px}.more-posts h2{font-size:20px}.more-posts ul{padding-left:20px}.more-posts li{margin:8px 0}.more-posts span{color:var(--dim);font-size:15px}
.steps{display:flex;justify-content:space-between;gap:16px;font-size:15px;margin-top:24px;padding-top:12px;border-top:1px solid var(--divider)}.steps a[rel=next]{margin-left:auto;text-align:right}
blockquote{border-left:3px solid var(--primary);margin:16px 0;padding:4px 16px;color:var(--dim)}
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}
.feed{display:grid;gap:28px}
.tile{background:var(--cell-bg,transparent);border-radius:var(--bevel,8px);box-shadow:var(--tile-shadow,none);border:var(--cell-border,0)}
.tile .clip{margin:0}
.capsule-text{padding:var(--cell-pad,10px 0 0)}
.tile h2{margin:0 0 6px;font-size:20px}.tile h2 a{color:var(--fg);text-decoration:none}
.tile h2 a:hover,.tile h2 a:focus-visible{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.tile p{margin:0 0 6px;color:var(--dim);font-size:15px}.tile time{font-size:13px;color:var(--dim)}
.tile p.abstract{color:var(--fg);font-size:16px;line-height:1.6;margin:0 0 10px}.view-lead .tile.main-post p.abstract{font-size:17px}
.grid-view .feed{grid-template-columns:minmax(0,1fr)}
@media(min-width:668px){.grid-view .feed{grid-template-columns:repeat(2,minmax(0,1fr))}}
.view-lead .feed{grid-template-columns:minmax(0,1fr)}
@media(min-width:628px){.view-lead .feed{grid-template-columns:repeat(2,minmax(0,1fr))}}
.view-lead .tile.main-post{grid-column:1/-1}.view-lead .tile.main-post h2{font-size:28px}
.m-row .feed,.row-alt .feed{gap:22px}
.m-row .tile,.row-alt .tile{display:grid;grid-template-columns:240px minmax(0,1fr);align-items:start;gap:18px;overflow:hidden}
.tile>:only-child{grid-column:1/-1}
.paging{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;margin:34px 0 10px}
.paging a,.paging b{display:inline-block;min-width:40px;padding:8px 12px;text-align:center;border-radius:var(--bevel,8px);
border:1px solid var(--divider);text-decoration:none;color:var(--fg);font-size:15px;line-height:1.2}
.paging a:hover{border-color:var(--primary);color:var(--primary)}
.paging b{background:var(--primary);border-color:var(--primary);color:var(--paper)}
.paging span{color:var(--dim);padding:0 2px}
.row-alt .tile{grid-template-columns:minmax(0,1fr) 240px}
.row-alt .tile>.embed-link{order:2}
.m-row .capsule-text,.row-alt .capsule-text{padding:var(--cell-pad,4px 12px 12px 0)}
.m-row .tile h2,.row-alt .tile h2{font-size:19px}
@media(max-width:700px){.m-row .tile,.row-alt .tile{grid-template-columns:minmax(0,1fr)}.row-alt .tile>.embed-link{order:0}}
.l-two .feed{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media(max-width:700px){.l-two .feed{grid-template-columns:minmax(0,1fr)}}
.view-mosaic .feed{grid-template-columns:minmax(0,1fr);gap:18px}
@media(min-width:498px){.view-mosaic .feed{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:736px){.view-mosaic .feed{grid-template-columns:repeat(3,minmax(0,1fr))}}
.view-mosaic .tile h2{font-size:17px}.view-mosaic .tile p{font-size:14px}
.layout-wide .feed{grid-template-columns:minmax(0,1fr);gap:34px}
.layout-wide .tile h2{font-size:24px}
.layout-wide .tile.main-post h2{font-size:30px}
@media(min-width:498px) and (max-width:735.98px){
.view-mosaic .tile: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){
.view-mosaic .tile: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}
.view-mosaic .tile: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){
.grid-view .tile: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){
.view-lead .tile:nth-child(2n+1 of .tile:not(.main-post)):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){
.l-two .tile: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}
}
.layout-side.on-post .main-area{max-width:calc(var(--page-w,820px) + 300px)}
.body-wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;overflow-wrap:anywhere}
.layout-side .body-wrap{grid-template-columns:minmax(0,1fr) 260px}
.layout-side .sidebar{position:sticky;top:20px;align-self:start;font-size:15px}
.layout-side .sidebar .toc{margin:0 0 24px}.layout-side .sidebar .more-posts{margin-top:0}.layout-side .sidebar .more-posts h2{font-size:17px;margin-top:0}.layout-side .sidebar .more-posts ul{padding-left:18px}.layout-side .sidebar .more-posts span{display:none}
@media(max-width:900px){.layout-side .body-wrap{grid-template-columns:minmax(0,1fr)}.layout-side .sidebar{position:static}.layout-side.on-post .main-area{max-width:var(--page-w,820px)}}
@media(max-width:600px){body{font-size:16px}h1{font-size:24px}.view-lead .tile.main-post h2{font-size:22px}}

:root{--paper:#f4f8fb;--fg:#12212e;--dim:#5d7488;--primary:#0b6ea8;--divider:#d8e4ee;--cell-bg:#ffffff;--bevel:12px;
--type:"Segoe UI",system-ui,-apple-system,Roboto,sans-serif;--font-head:"Segoe UI",system-ui,sans-serif;
--play-btn-bg:#0b6ea8;--play-btn-ink:#fff;--play-btn-radius:14px;--play-btn-border:0}
.brand-row{border-bottom:2px solid var(--primary)}
.tile{box-shadow:0 1px 3px rgba(20,50,80,.10)}
h2{color:#0e3a57}
.ref{font-size:14px}