/* AIDC Research editorial reading styles. */
:root{color-scheme:light;--ink:#202221;--muted:#6a6b67;--line:#d8d8d0;--paper:#fdfcf8;--accent:#982b37;--serif:"Songti SC","Noto Serif CJK SC","STSong",Georgia,serif;--sans:"Helvetica Neue","PingFang SC","Microsoft YaHei",Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}a:hover{text-decoration:underline;text-underline-offset:5px}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}img{display:block;width:100%;height:auto}[hidden]{display:none!important}.sr-only,.skip-link:not(:focus){position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link:focus{position:fixed;top:12px;left:12px;z-index:30;background:#fff;padding:16px}
.utility-bar,.masthead,.section-nav,.editorial-shell,.site-footer{width:min(1240px,calc(100% - 72px));margin-inline:auto}.utility-bar{min-height:47px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.network-brand{font-size:14px;font-weight:750}.network-brand span{font-weight:400;color:var(--muted);margin-left:12px;font-size:12px}.utility-bar nav{display:flex;gap:28px;font-size:12px;color:#535550}.masthead{padding-block:31px 28px;display:flex;justify-content:space-between;gap:30px;align-items:center}.eyebrow{font-size:10px;letter-spacing:.17em;font-weight:700;color:var(--accent);margin:0 0 12px}.wordmark{display:block;font-family:var(--serif);font-size:clamp(38px,4.5vw,66px);font-weight:850;line-height:1.08;letter-spacing:-.045em}.wordmark:hover{text-decoration:none}.wordmark-dot{color:var(--accent)}.masthead-description{font-family:var(--sans);font-size:13px;color:var(--muted);margin:13px 0 0;font-weight:400;letter-spacing:.08em}.edition{display:grid;gap:9px;text-align:right}.edition>span{font-size:10px;letter-spacing:.1em;color:var(--muted)}.edition time{font-family:Georgia,serif;font-size:30px;letter-spacing:-.04em}.edition small{font-size:11px;color:var(--muted)}.section-nav{display:flex;gap:34px;border-top:3px solid var(--ink);border-bottom:1px solid var(--line);min-height:50px;align-items:stretch}.section-nav>a{font-size:13px;font-weight:600;padding-block:16px 14px;white-space:nowrap}.section-nav>a[aria-current]{color:var(--accent);border-bottom:3px solid var(--accent);margin-bottom:-1px}.editorial-shell{padding-top:27px}.issue-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:11px;margin-bottom:20px}.issue-heading p{margin:0}.issue-heading>p:first-child{font-weight:700;font-size:13px}.section-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:8px;vertical-align:middle}.muted{color:var(--muted);font-size:10px;margin-left:7px;font-weight:400}.issue-heading>p:last-child{color:var(--muted)}.feature-stage{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:34px;padding-bottom:40px;border-bottom:1px solid var(--line)}.lead-story,.supporting-stories,.feature-copy{min-width:0}.feature-image{display:block;overflow:hidden;background:#e9ece8}.lead-story .feature-image{aspect-ratio:2.05}.feature-image img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}.feature-image:hover img{transform:scale(1.02)}.feature-copy{padding-top:16px}.kicker{margin:0;font-size:10px;font-weight:700;letter-spacing:.02em;color:var(--accent)}.kicker span{font-weight:400;color:var(--muted);margin-left:9px}.feature-copy h2{font-family:var(--serif);font-weight:800;font-size:clamp(24px,2.3vw,34px);line-height:1.43;letter-spacing:-.02em;margin:10px 0 13px;text-wrap:pretty}.feature-insight{font-family:var(--serif);font-size:17px;line-height:1.85;margin:0;color:#383c37;text-wrap:pretty}.publication-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:10px;color:var(--muted);line-height:1.6;margin-top:17px;align-items:center}.publication-meta .preprint{border:1px solid #b6b7ad;padding:0 5px;font-size:9px}.read-link{display:inline-flex;gap:16px;align-items:center;font-size:12px;font-weight:650;min-height:44px}.read-link>span{color:var(--accent);font-size:18px}.lead-story .read-link{margin-top:6px}.supporting-stories{border-left:1px solid var(--line);padding-left:30px;display:flex;flex-direction:column}.supporting-story{padding-bottom:22px;margin-bottom:22px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:minmax(0,1fr) 118px;gap:18px}.supporting-story .feature-image{grid-column:2;grid-row:1;aspect-ratio:1.12;align-self:start;margin-top:2px}.supporting-story .feature-copy{grid-column:1;grid-row:1;padding:0}.supporting-story h2{font-size:21px;line-height:1.5;margin-top:7px}.supporting-story .feature-insight{font-size:14px;line-height:1.8}.supporting-story .publication-meta{font-size:9px;gap:7px;margin-top:12px}.reading-note{font-family:var(--serif);font-size:16px;line-height:1.8;margin:auto 0 0;padding:18px 20px;background:#f0efe7}.reading-note>span{display:block;font-family:var(--sans);color:var(--accent);font-size:9px;letter-spacing:.12em;margin-bottom:6px}
.research-section{padding-top:35px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:25px}.section-heading h2{font-family:var(--serif);font-size:31px;font-weight:800;margin:0;letter-spacing:-.025em}.section-heading>p{font-family:var(--serif);color:var(--muted);font-size:14px;line-height:1.7;margin:0;max-width:380px}.section-heading .eyebrow{font-size:9px;margin-bottom:9px}.research-tools{padding:16px 0;display:flex;justify-content:space-between;gap:24px;border-top:1px solid var(--ink);border-bottom:1px solid var(--line);align-items:center}.topic-filters{display:flex;gap:7px;flex-wrap:wrap}.topic-filters button{background:transparent;border:1px solid transparent;min-height:40px;padding:7px 10px;color:#666a62;font-size:11px;white-space:nowrap}.topic-filters button span{font-size:10px;opacity:.7;margin-left:3px}.topic-filters button[aria-pressed=true]{border-color:var(--ink);background:var(--ink);color:var(--paper)}.topic-filters button:hover{border-color:#a7aaa0}.paper-search{display:flex;flex:0 1 260px;border-bottom:1px solid #8c9086;min-width:200px}.paper-search input{width:100%;min-width:0;border:0;background:transparent;color:var(--ink);font-size:12px;padding:12px 0;outline-offset:1px}.paper-search button{border:0;background:transparent;font-size:11px;padding:0 8px;min-height:44px;color:var(--accent);white-space:nowrap}.results-line{display:flex;justify-content:space-between;align-items:center;min-height:53px;color:var(--muted);font-size:11px}.results-line p{margin:0}.reset-filter{background:none;border:0;padding:10px;color:var(--accent);font-size:11px;min-height:40px}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:29px;row-gap:0}.paper-card{min-width:0;border-top:1px solid #bfc1b8;padding:23px 0 26px;display:flex;flex-direction:column;scroll-margin-top:25px}.paper-card-top{display:flex;justify-content:space-between;align-items:center;gap:15px}.article-number{font-family:Georgia,serif;font-size:13px;color:#9c9e96}.paper-card h3{font-family:var(--serif);font-size:23px;line-height:1.55;font-weight:750;letter-spacing:-.02em;margin:12px 0 0;text-wrap:pretty;overflow-wrap:anywhere}.paper-card .publication-meta{margin-top:12px;min-height:20px}.takeaway{margin:22px 0 19px}.takeaway-label{font-size:10px;font-weight:700;color:var(--accent);display:block;margin-bottom:7px}.paper-takeaway{font-family:var(--serif);font-size:16px;line-height:1.9;margin:0;color:#353a33;text-wrap:pretty}.paper-reading{margin-top:auto}.paper-detail{border-top:1px solid var(--line)}.paper-detail summary{list-style:none;cursor:pointer;min-height:44px;display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:11px;color:#666b61}.paper-detail summary::-webkit-details-marker{display:none}.paper-detail summary span{font-size:16px;color:var(--accent)}.paper-detail[open] summary span{transform:rotate(45deg)}.paper-detail-body{border-bottom:1px solid var(--line);padding:8px 0 18px}.paper-detail-body section{margin-top:18px}.paper-detail-body h4{margin:0 0 6px;font-size:11px;color:var(--accent)}.paper-detail-body p{font-size:13px;line-height:1.9;margin:0;color:#5c6359;overflow-wrap:anywhere}.paper-detail-body .original-title{font-family:Georgia,serif;color:#242923;font-size:15px;line-height:1.65;margin-bottom:8px}.paper-detail-body .authors{font-size:10px}.article-actions{display:flex;gap:23px;flex-wrap:wrap;padding-top:7px}.article-actions>a{font-size:11px;display:inline-flex;align-items:center;min-height:38px;gap:10px}.article-actions>a>span{color:var(--accent);font-size:15px}.paper-card:target{background:#f2f0e6;box-shadow:0 0 0 12px #f2f0e6}.empty-results{text-align:center;padding:70px 20px;border-block:1px solid var(--line)}.empty-results h3{font-family:var(--serif);font-size:25px}.empty-results p{font-size:14px;color:var(--muted)}.empty-results button{background:var(--ink);color:white;border:0;min-height:44px;padding:10px 20px}.archive-invitation{margin-top:35px;background:#efeee5;border-top:2px solid var(--ink);padding:30px 35px;display:flex;justify-content:space-between;gap:25px;align-items:center}.archive-invitation h2{font-family:var(--serif);font-size:28px;margin:0 0 10px}.archive-invitation p:not(.eyebrow){font-family:var(--serif);font-size:15px;color:var(--muted);margin:0;line-height:1.7}.archive-invitation .read-link{white-space:nowrap}.site-footer{margin-top:58px;padding-block:27px 36px;border-top:3px solid var(--ink);display:grid;grid-template-columns:1fr 1.2fr auto;gap:45px;font-size:11px;color:var(--muted);line-height:1.9}.site-footer p{margin:6px 0 0}.footer-brand{font-family:Georgia,serif;font-size:23px;color:var(--ink)}.site-footer>a{white-space:nowrap}.archive-shell{padding-top:42px}.archive-list{border-top:1px solid var(--ink)}.archive-row{display:grid;grid-template-columns:135px 1fr auto;align-items:center;gap:30px;padding-block:25px;border-bottom:1px solid var(--line)}.archive-row>time{font-family:Georgia,serif;font-size:22px;color:var(--accent)}.archive-row h3{font-family:var(--serif);font-size:22px;margin:0 0 8px;line-height:1.5}.archive-row p{font-size:12px;color:var(--muted);margin:0}
@media(min-width:1500px){.utility-bar,.masthead,.section-nav,.editorial-shell,.site-footer{width:min(1320px,calc(100% - 100px))}.feature-copy h2{font-size:36px}.paper-card h3{font-size:25px}.paper-takeaway{font-size:17px}}
@media(max-width:1080px){.feature-stage{grid-template-columns:1.4fr 1fr;gap:26px}.supporting-stories{padding-left:24px}.supporting-story{grid-template-columns:1fr 88px;gap:12px}.supporting-story h2{font-size:19px}.feature-copy h2{font-size:28px}.research-tools{align-items:stretch;flex-direction:column;gap:10px}.paper-search{flex-basis:auto;max-width:360px}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:30px}.site-footer{gap:25px}.paper-card h3{font-size:24px}}
@media(max-width:760px){.utility-bar,.masthead,.section-nav,.editorial-shell,.site-footer{width:calc(100% - 40px)}.utility-bar{min-height:43px}.utility-bar nav{gap:16px;font-size:10px}.network-brand span{display:none}.masthead{padding-block:26px 23px;align-items:start;gap:16px}.wordmark{font-size:42px}.eyebrow{font-size:9px}.masthead-description{font-size:11px;letter-spacing:0;max-width:220px;line-height:1.7;margin-top:9px}.edition{gap:7px;padding-top:4px}.edition>span{font-size:8px;max-width:105px;line-height:1.6}.edition time{font-size:20px}.edition small{display:none}.section-nav{gap:26px;overflow:auto;min-height:47px}.section-nav>a{font-size:11px;padding-block:15px 13px}.editorial-shell{padding-top:22px}.issue-heading{gap:12px;margin-bottom:17px}.issue-heading>p:first-child{font-size:12px}.issue-heading .muted{display:none}.issue-heading>p:last-child{font-size:10px}.feature-stage{display:block;padding-bottom:25px}.lead-story .feature-image{aspect-ratio:1.75}.feature-copy{padding-top:16px}.feature-copy h2{font-size:28px;line-height:1.5;margin-top:10px}.feature-insight{font-size:16px;line-height:1.9}.supporting-stories{border-left:0;padding-left:0;margin-top:25px;border-top:1px solid var(--line);padding-top:25px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.supporting-story{display:flex;flex-direction:column;gap:10px;margin:0;padding:0;border:0}.supporting-story .feature-image{aspect-ratio:1.55;margin:0;width:100%;order:0}.supporting-story .feature-copy{order:1}.supporting-story h2{font-size:20px;line-height:1.55}.supporting-story .feature-insight{font-size:14px;line-height:1.85}.supporting-story .kicker{font-size:9px}.supporting-story .kicker span{display:none}.supporting-story .publication-meta{gap:6px}.reading-note{grid-column:1/-1;font-size:14px;padding:15px 18px;margin:0}.research-section{padding-top:29px}.section-heading{display:block;margin-bottom:19px}.section-heading h2{font-size:29px}.section-heading>p{margin-top:10px;font-size:13px}.research-tools{padding-block:12px;gap:8px}.topic-filters{gap:2px}.topic-filters button{font-size:10px;padding:7px 8px;min-height:40px}.paper-search{max-width:none;width:100%}.paper-search input{font-size:13px}.results-line{min-height:48px}.article-grid{display:block}.paper-card{padding:24px 0 27px}.paper-card h3{font-size:25px;line-height:1.5;margin-top:12px}.paper-card .kicker{font-size:11px}.paper-card .publication-meta{font-size:11px;gap:11px}.takeaway{margin-top:20px;margin-bottom:20px}.takeaway-label{font-size:11px}.paper-takeaway{font-size:17px;line-height:1.9}.paper-detail summary{min-height:48px;font-size:12px}.article-actions>a{min-height:44px;font-size:12px}.paper-detail-body p{font-size:15px;line-height:1.9}.paper-detail-body h4{font-size:12px}.archive-invitation{margin-top:25px;padding:24px;display:block}.archive-invitation h2{font-size:25px;line-height:1.5}.archive-invitation .read-link{margin-top:12px}.site-footer{margin-top:35px;grid-template-columns:1fr;gap:14px;padding-bottom:25px}.archive-row{grid-template-columns:1fr;gap:9px;padding-block:23px}.archive-row>time{font-size:18px}.archive-row h3{font-size:23px}.archive-row .read-link{justify-self:start}}
@media(max-width:380px){.masthead{display:block}.edition{display:flex;margin-top:16px;text-align:left;align-items:center;gap:13px}.edition>span{max-width:none}.edition time{font-size:18px}.section-nav{gap:22px}.wordmark{font-size:40px}.supporting-stories{gap:16px}.supporting-story h2{font-size:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.feature-image img{transition:none}}
@media(max-width:760px){.masthead{display:block}.edition{display:flex;margin-top:15px;gap:14px;text-align:left;align-items:center}.edition>span{max-width:none}.masthead-description{max-width:none}}
.paper-byline{font-size:11px;line-height:1.7;color:var(--muted);margin:8px 0 0;overflow-wrap:anywhere}