@charset "UTF-8";
/* AI Reads page. ASCII only: the deploy host sends no charset. */

.rd-wrap{max-width:1120px;margin:0 auto;padding:0 40px 90px}
.rd-mast{padding-top:44px;display:flex;align-items:flex-end;gap:24px;flex-wrap:wrap}
.rd-mast h1.mast-title{margin:0;flex:1;min-width:200px}
.rd-wrap .double-rule{margin-bottom:24px}

/* search */
.rd-search{display:flex;align-items:center;height:36px;border:1px solid var(--rule);border-radius:4px;
  background:var(--paper);transition:border-color .15s}
.rd-tools{position:relative}
.rd-tools .rd-search{position:absolute;top:0;right:0;z-index:1}
.rd-search:focus-within{border-color:var(--blue)}
.rd-search input{border:none;background:transparent;color:var(--ink);font:inherit;font-size:14px;
  width:260px;height:100%;padding:0 14px}
.rd-search input:focus{outline:none}
.rd-search input::placeholder{color:var(--ink-faint)}

/* source filter */
details.rd-fbox{margin-bottom:24px;border-bottom:1px solid var(--rule-soft)}
details.rd-fbox>summary{list-style:none;cursor:pointer;padding:0 290px 14px 0;min-height:36px;box-sizing:content-box;font-size:13px;color:var(--ink-soft);
  display:flex;align-items:center;gap:8px}
details.rd-fbox>summary::-webkit-details-marker{display:none}
details.rd-fbox>summary .tri{font-size:9px;color:var(--blue);transition:transform .2s}
details.rd-fbox[open]>summary .tri{transform:rotate(90deg)}
details.rd-fbox>summary:hover{color:var(--blue)}
details.rd-fbox>summary:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.rd-picked{color:var(--blue);font-weight:600}
.rd-filter{display:grid;grid-template-columns:52px minmax(0,1fr);gap:12px 16px;align-items:start;padding:4px 0 22px}
.rd-grp{border:none;background:none;font:inherit;font-size:13px;font-weight:700;color:var(--ink);
  padding:5px 0;text-align:left;cursor:pointer;line-height:1.5}
.rd-grp:hover,.rd-grp.on{color:var(--blue)}
.rd-chips{display:flex;flex-wrap:wrap;gap:7px}
.rd-chip{border:1px solid var(--rule);background:var(--paper);color:var(--ink);font:inherit;font-size:13px;
  line-height:1.5;padding:3px 10px;border-radius:3px;cursor:pointer;transition:border-color .15s,background .15s}
.rd-chip span{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--ink-faint);margin-left:6px}
.rd-chip.z{color:var(--ink-faint)}
.rd-chip:hover{border-color:var(--blue)}
.rd-chip[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.rd-chip[aria-pressed="true"] span{color:rgba(255,255,255,.75)}
[data-theme="dark"] .rd-chip[aria-pressed="true"]{color:#0E1118}
[data-theme="dark"] .rd-chip[aria-pressed="true"] span{color:rgba(14,17,24,.7)}
.rd-grp:focus-visible,.rd-chip:focus-visible,#rdClear:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.rd-stat{display:flex;margin:-8px 0 22px;align-items:center;gap:14px;font-size:13px;color:var(--ink-soft)}
.rd-stat[hidden]{display:none}
#rdClear{border:none;background:none;font:inherit;font-size:13px;color:var(--blue);cursor:pointer;padding:0}
#rdClear:hover{text-decoration:underline}

/* list: one card per author or institution, two per row, equal height per row */
.rs-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:stretch}
.rs-card{display:flex;flex-direction:column;min-width:0;background:var(--paper);border:1px solid var(--rule);
  border-radius:3px;padding:26px 30px 14px}
.rs-card[hidden]{display:none}
.rs-h{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:baseline;column-gap:16px;
  padding-bottom:16px;border-bottom:1px solid var(--rule-soft)}
.rs-nm{font-family:"Source Serif 4",Georgia,"Times New Roman",serif;font-weight:400;font-size:24px;line-height:1.3;color:var(--ink)}
.rs-nm .cn{font-family:"Noto Serif SC","Songti SC",serif;font-size:15px;color:var(--ink-soft);margin-left:10px;letter-spacing:.06em}
.rs-home{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--ink-faint);white-space:nowrap}
.rs-home:hover{color:var(--blue)}
.rs-role{grid-column:1/-1;font-size:13px;color:var(--ink-faint);margin-top:3px;line-height:1.6}
.rs-posts{flex:1}
.rs-post{padding:18px 0;cursor:pointer;border-radius:2px}
.rs-post+.rs-post{border-top:1px solid var(--rule-soft)}
.rs-post.x,.rs-post.off{display:none}
.rs-card.open .rs-post.x{display:block}
.rs-card.q .rs-post.x{display:block}
.rs-card.q .rs-post.off{display:none}
.rs-card.q .rs-more{display:none}
.rs-post:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
.rs-post.cur .rs-zh span{color:var(--blue)}
.rs-d{display:flex;gap:10px;align-items:baseline;margin-bottom:6px}
.rs-d time{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.04em;color:var(--ink-faint)}
.rs-post.new .rs-d time{color:var(--blue)}
.rs-by{font-size:12.5px;color:var(--ink-soft)}
.rs-zh{font-family:"Noto Serif SC","Songti SC",serif;font-weight:600;font-size:18px;line-height:1.55;color:var(--ink)}
.rs-zh span{transition:color .15s}
.rs-post:hover .rs-zh span{color:var(--blue)}
.rs-post.new .rs-zh span{background:linear-gradient(transparent 58%,var(--hl) 58%)}
.rs-en{font-family:"Source Serif 4",Georgia,"Times New Roman",serif;font-style:italic;font-size:15px;line-height:1.5;
  color:var(--ink-faint);margin-top:3px}
.rs-sm{font-size:14px;line-height:1.85;color:var(--ink-soft);margin-top:9px}
.rs-sm b{font-weight:700;color:var(--ink)}
.rs-more{align-self:flex-start;border:none;background:none;font:inherit;font-size:13px;color:var(--blue);
  cursor:pointer;padding:12px 0 4px;border-top:1px solid var(--rule-soft);width:100%;text-align:left}
.rs-more:hover{text-decoration:underline}
.rs-more:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
/* an opened card takes the full row; its posts sit in two columns */
.rs-card.open,.rs-card.q{grid-column:1/-1}
.rs-card.open .rs-posts,.rs-card.q .rs-posts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:44px}
.rs-card.open .rs-post+.rs-post,.rs-card.q .rs-post+.rs-post{border-top:none}
.rs-card.open .rs-post,.rs-card.q .rs-post{border-bottom:1px solid var(--rule-soft)}
@media (max-width:860px){
  .rd-wrap{padding:0 18px 60px}
  .rd-tools .rd-search{position:static;margin-bottom:10px}.rd-search input{width:100%}
  details.rd-fbox>summary{padding-right:0}
  .rd-filter{grid-template-columns:1fr;gap:8px}
  .rs-grid{grid-template-columns:1fr}
  .rs-card{padding:22px 20px 10px}
  .rs-card.open .rs-posts,.rs-card.q .rs-posts{grid-template-columns:1fr}
}
.rd-empty{display:none;padding:60px 0;text-align:center;color:var(--ink-faint);font-size:14px}
.rd-empty.on{display:block}

/* sources */
details.rd-src{margin-top:56px;border-top:1px solid var(--rule)}
details.rd-src>summary{list-style:none;cursor:pointer;padding:14px 0;font-size:13px;color:var(--ink-soft);
  display:flex;align-items:center;gap:8px;user-select:none}
details.rd-src>summary::-webkit-details-marker{display:none}
details.rd-src>summary .tri{font-size:9px;color:var(--blue);transition:transform .2s}
details.rd-src[open]>summary .tri{transform:rotate(90deg)}
details.rd-src>summary:hover{color:var(--blue)}
.rd-src-body{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding-bottom:20px}
@media (max-width:860px){.rd-src-body{grid-template-columns:1fr}}
.rd-src h4{font-size:12px;font-weight:600;color:var(--ink-faint);margin-bottom:6px}
.rd-src table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.5}
.rd-src td{padding:6px 10px 6px 0;border-bottom:1px solid var(--rule-soft);vertical-align:top}
.rd-src td.nm{white-space:nowrap;font-weight:600;color:var(--ink)}
.rd-src td.nm span{font-weight:400;color:var(--ink-faint);margin-left:4px}
.rd-src td.ds{color:var(--ink-soft)}
.rd-src td.ln{font-family:"IBM Plex Mono",monospace;font-size:11.5px;white-space:nowrap}

/* drawer */
.rd-back{position:fixed;inset:0;z-index:80;background:rgba(26,25,21,.28);opacity:0;pointer-events:none;transition:opacity .2s}
.rd-back.on{opacity:1;pointer-events:auto}
.rd-drawer{position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(62vw,880px);min-width:560px;background:var(--paper);
  border-left:1px solid var(--rule);display:flex;flex-direction:column;transform:translateX(100%);
  transition:transform .26s ease;visibility:hidden}
.rd-drawer.on{transform:none;visibility:visible}
@media (max-width:760px){.rd-drawer{width:100vw;min-width:0;border-left:none}}
@media (prefers-reduced-motion:reduce){.rd-drawer,.rd-back{transition:none}}

.rd-dbar{display:flex;align-items:center;gap:8px;padding:10px 22px;border-bottom:1px solid var(--rule-soft)}
.rd-dbar .sp{flex:1}
.rd-btn{border:1px solid var(--rule);background:none;color:var(--ink-soft);font:inherit;font-size:12px;
  padding:3px 10px;border-radius:3px;cursor:pointer;line-height:1.6}
.rd-btn:hover{border-color:var(--blue);color:var(--blue)}
.rd-btn:disabled{opacity:.35;pointer-events:none}
.rd-btn:focus-visible,.rd-seg button:focus-visible{outline:2px solid var(--blue);outline-offset:1px}
.rd-seg{display:inline-flex;border:1px solid var(--rule);border-radius:3px;overflow:hidden}
.rd-seg button{border:none;background:none;color:var(--ink-soft);font:inherit;font-size:12px;padding:3px 11px;cursor:pointer;line-height:1.6}
.rd-seg button+button{border-left:1px solid var(--rule-soft)}
.rd-seg button.on{background:var(--blue);color:#fff}
[data-theme="dark"] .rd-seg button.on{color:#0E1118}
.rd-seg.off{display:none}

.rd-dscroll{position:relative;flex:1;overflow-y:auto;overscroll-behavior:contain}
.rd-dinner{max-width:720px;margin:0 auto;padding:26px 34px 60px}
@media (max-width:760px){.rd-dinner{padding:20px 20px 50px}}
.rd-dh h2{font-family:"Noto Serif SC","Songti SC",serif;font-weight:600;font-size:25px;line-height:1.45}
.rd-dh .en{font-family:"Source Serif 4",Georgia,"Times New Roman",serif;font-style:italic;font-size:16px;color:var(--ink-faint);margin-top:6px;line-height:1.5}
.rd-dh{padding-bottom:16px;border-bottom:1px solid var(--rule)}
.rd-dh .meta{margin-top:12px;font-size:13px;color:var(--ink-soft);display:flex;flex-wrap:wrap;gap:4px 14px}
.rd-dh .dept-row{margin:12px 0 0}
.rd-dh .meta .d{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-faint)}
.rd-dh .meta .r{color:var(--ink-soft)}
.rd-dh .meta i{font-style:normal;color:var(--ink-faint);margin:0 6px}
.rd-soon{margin-top:44px;text-align:center}
.rd-soon .t{font-family:"Noto Serif SC","Songti SC",serif;font-weight:900;font-size:26px;color:var(--ink-faint)}
.rd-soon .n{font-size:13.5px;color:var(--ink-soft);margin:8px 0 22px}
.rd-soon .rd-dl{margin:0 6px}
.rd-dl{display:inline-block;margin-right:14px;padding:5px 14px;border:1px solid var(--blue);border-radius:3px;font-size:13px}
.rd-dl:hover{background:var(--blue-wash)}

/* article body */
.rd-body{font-size:16px;line-height:1.95;color:var(--ink)}
.rd-body>*{margin:0 0 1.05em}
.rd-body h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:20px;font-weight:900;line-height:1.5;margin-top:1.6em}
.rd-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-top:1.4em}
.rd-body ul,.rd-body ol{padding-left:1.4em}
.rd-body li{margin:.25em 0}
.rd-body blockquote{border-left:3px solid var(--blue);padding:2px 0 2px 16px;color:var(--ink-soft)}
.rd-body pre{font-family:"IBM Plex Mono",monospace;font-size:13px;line-height:1.6;background:var(--paper-deep);
  padding:12px 14px;border-radius:3px;overflow-x:auto;white-space:pre}
.rd-body code{font-family:"IBM Plex Mono",monospace;font-size:.88em}
.rd-body hr{border:none;border-top:1px solid var(--rule);margin:1.8em 0}
.rd-body figure{margin:1.4em 0}
.rd-body figure img{display:block;max-width:100%;height:auto;margin:0 auto;border-radius:2px}
.rd-body figcaption{font-size:13px;color:var(--ink-faint);text-align:center;margin-top:6px;line-height:1.6}
.rd-body .img-miss{display:block;padding:18px;text-align:center;border:1px dashed var(--rule);border-radius:3px;font-size:13px}
.rd-body table{border-collapse:collapse;font-size:14px;width:100%;display:block;overflow-x:auto}
.rd-body td,.rd-body th{border:1px solid var(--rule-soft);padding:4px 8px;text-align:left}
.rd-body .tr{color:var(--ink-faint);font-size:15px;margin-top:-.6em}
.rd-body h2.tr,.rd-body h3.tr{margin-top:-.4em;font-size:15px}
.rd-foot-note{margin-top:30px;padding-top:12px;border-top:1px solid var(--rule-soft);font-size:12px;color:var(--ink-faint)}
.rd-sample{font-size:12px;color:var(--c-red,#A82828);border:1px dashed currentColor;border-radius:3px;padding:6px 10px;margin-bottom:16px}
body.rd-lock{overflow:hidden}

/* v2 board look: same shell as AI Daily 2.0 (sidebar, column, masthead, cards). Layout only. */
body.v2 .rd-search{height:38px;border:none;border-radius:999px;background:var(--card);box-shadow:var(--shadow-sm)}
body.v2 .rd-search:focus-within{box-shadow:var(--shadow-sm),0 0 0 2px color-mix(in srgb,var(--blue) 45%,transparent)}
body.v2 .rd-search input{padding:0 18px;width:300px}

/* author / institution filter in the sidebar, rows like the date archive */
body.v2 .rd-side .side-sec{margin:26px 0 8px}
body.v2 .rd-side .side-sec:first-child{margin-top:0}
body.v2 .rd-grp{font:inherit;font-family:"IBM Plex Mono","Noto Sans SC",monospace;font-size:10px;letter-spacing:.28em;color:var(--ink-faint);padding:0;font-weight:400}
body.v2 .rd-grp:hover,body.v2 .rd-grp.on{color:var(--blue)}
body.v2 .rd-side .rd-chips{display:flex;flex-direction:column;gap:1px}
body.v2 .rd-side .rd-chip{display:flex;align-items:baseline;gap:8px;width:100%;text-align:left;border:none;border-radius:4px;background:none;
  padding:5px 8px;font-size:13px;line-height:1.5;color:var(--ink)}
body.v2 .rd-side .rd-chip em{font-style:normal;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
body.v2 .rd-side .rd-chip span{margin:0;font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--ink-faint)}
body.v2 .rd-side .rd-chip.z{color:var(--ink-faint)}
body.v2 .rd-side .rd-chip:hover{background:var(--blue-wash);color:var(--blue)}
body.v2 .rd-side .rd-chip[aria-pressed="true"]{background:var(--blue);color:#fff}
body.v2 .rd-side .rd-chip[aria-pressed="true"] span{color:rgba(255,255,255,.75)}
[data-theme="dark"] body.v2 .rd-side .rd-chip[aria-pressed="true"]{color:#0E1118}

/* cards: header grey like the Tracking rail; serif titles, sans body text */
body.v2 .rs-grid{gap:28px}
body.v2 .rs-card{border:none;border-radius:14px;box-shadow:var(--shadow);padding:0;overflow:hidden}
body.v2 .rs-h{padding:24px 32px 18px;background:var(--rail);border-bottom:none;box-shadow:inset 0 -1px 0 var(--edge)}
body.v2 .rs-nm{font-family:"Noto Serif SC",serif;font-weight:900;font-size:20px;line-height:1.4}
body.v2 .rs-nm .cn{font-size:14px;font-weight:600;letter-spacing:.04em}
body.v2 .rs-role{margin-top:6px}
body.v2 .rs-posts{padding:4px 32px 6px}
body.v2 .rs-post{padding:20px 0}
body.v2 .rs-zh{font-weight:900;font-size:17px;line-height:1.65}
body.v2 .rs-en{font-family:"Noto Sans SC",sans-serif;font-style:normal;font-size:13.5px;line-height:1.6}
body.v2 .rs-sm{font-size:14.5px;line-height:1.9;color:var(--body);text-align:justify}
body.v2 .rs-sm b{font-weight:700;color:var(--ink)}
body.v2 .rs-more{padding:14px 32px 16px;border-top:1px solid var(--edge)}
body.v2 .rs-card.open .rs-posts,body.v2 .rs-card.q .rs-posts{column-gap:48px}

body.v2 details.rd-src{border-top:none;margin-top:56px;background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:0 32px}
body.v2 details.rd-src>summary{padding:18px 0}

body.v2 .rd-back{background:rgba(16,24,40,.22);backdrop-filter:blur(3px)}
body.v2 .rd-drawer{border-left:none;box-shadow:-30px 0 60px -30px rgba(16,24,40,.35),0 0 0 1px var(--edge)}
body.v2 .rd-dh h2{font-weight:900}
body.v2 .rd-dh .en{font-family:"Noto Sans SC",sans-serif;font-style:normal;font-size:15px}
body.v2 .rd-body{color:var(--body);line-height:1.95}
body.v2 .rd-btn,body.v2 .rd-seg{border-radius:999px}
@media (max-width:860px){
  body.v2 .rd-search{width:100%}body.v2 .rd-search input{width:100%}
  body.v2 .rs-h{padding:22px 20px 16px}
  body.v2 .rs-posts{padding:2px 20px 4px}
  body.v2 .rs-more{padding:12px 20px 14px}
}
/* timeline (user 10-21): one column by week, directory on the left, filter folded at the top */
.rs-time{display:block}
.rs-wk{margin:0 0 22px;padding:6px 0 4px}
.rs-wk .rs-wh{margin:0 32px}
.rs-wh{display:flex;align-items:baseline;gap:14px;padding:16px 0 10px;border-bottom:1px solid var(--rule)}
.rs-wh h3{margin:0;font-family:"IBM Plex Mono",monospace;font-size:13px;letter-spacing:.06em;color:var(--blue)}
.rs-wh span{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--ink-faint)}
.rs-wh b{font-weight:500}
.rs-wk .rs-post.x{display:block}
.rs-wk .rs-post.off{display:none}
.rs-src{font-size:12.5px;color:var(--ink-soft)}
.rd-weeks .day-link[hidden]{display:none}
.rd-weeks .day-link .n{margin-left:auto;font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--ink-faint)}
.rd-flt{display:block;width:100%;margin:4px 0 14px}
.rd-flt summary{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;border:1px solid var(--rule);border-radius:4px;
  cursor:pointer;list-style:none;font-size:13px;color:var(--ink);background:var(--paper)}
.rd-flt summary::-webkit-details-marker{display:none}
.rd-flt[open] summary,.rd-flt summary:hover{border-color:var(--blue);color:var(--blue)}
.rd-flt #rdPicked{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--blue)}
.rd-flt-body{margin-top:12px;padding:16px 18px;border:1px solid var(--rule);border-radius:4px;background:var(--paper)}
.rd-flt-body .side-sec{margin:0 0 8px;padding:0;border:none}
.rd-flt-body .rd-chips+.side-sec{margin-top:16px}
@media (max-width:720px){.rd-flt{max-width:100%;margin-top:48px}.rs-wk{padding:4px 16px}}