:root{color-scheme:light;--environment:#eeede8;--tray:#f5f3ee;--paper:#fffdf8;--ink:#20211f;--muted:#746f66;--faint:#9a958c;--accent:#806a48;--line:#d8d4cb;--danger:#a4473f;--serif:"Songti SC",STSong,"Noto Serif CJK SC",SimSun,serif;--sans:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-family:var(--sans);color:var(--ink);background:var(--environment)}
*{box-sizing:border-box}html,body{margin:0;min-width:0;min-height:100%;overflow-x:hidden}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #bda882;outline-offset:2px}a{color:var(--accent)}h1,h2,h3,p{margin-top:0}small,.muted{color:var(--muted)}.serif{font-family:var(--serif)}.eyebrow{color:var(--accent);font-size:11px;font-weight:750;letter-spacing:.1em;text-transform:uppercase}.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:750}.brand-dot{width:10px;height:10px;border:2px solid var(--accent);border-radius:50%;background:var(--accent);box-shadow:inset 0 0 0 2px var(--paper)}.button{min-height:38px;padding:8px 16px;border:1px solid var(--line);border-radius:6px;background:var(--paper);font-weight:650}.button.primary{border-color:var(--ink);color:var(--paper);background:var(--ink)}.button.danger{border-color:var(--danger);color:#fff;background:var(--danger)}.link-button{padding:0;border:0;border-bottom:1px solid currentColor;background:transparent;color:var(--accent)}.field{display:grid;gap:7px;margin:16px 0;font-size:13px;font-weight:650}.field input,.field textarea,.field select{width:100%;min-height:42px;padding:9px 11px;border:1px solid #c5bfb4;border-radius:5px;background:#fffefa}.field textarea{min-height:115px;resize:vertical}.error{padding:10px;border-radius:4px;color:#8d3731;background:#f9e8e4}.success{padding:10px;border-radius:4px;color:#395f3b;background:#e9f0e7}.quiet{color:var(--faint)}.empty{max-width:520px;margin:auto;padding:55px 24px;text-align:center;color:var(--muted)}.empty h2{color:var(--ink);font:700 28px/1.3 var(--serif)}
.auth-page{display:grid;grid-template-columns:minmax(330px,.9fr) minmax(460px,1.1fr);min-height:100dvh}.auth-story{display:flex;flex-direction:column;justify-content:space-between;padding:clamp(32px,6vw,84px);border-right:1px solid var(--line);background:var(--tray)}.auth-story h1{max-width:540px;margin:0 0 25px;font:700 clamp(40px,5vw,68px)/1.2 var(--serif);letter-spacing:-.035em}.auth-story p:not(.eyebrow){max-width:520px;color:var(--muted);font:18px/1.8 var(--serif)}.auth-panel{display:grid;place-items:center;padding:32px}.auth-card{width:min(100%,420px);padding:38px;border:1px solid var(--line);border-radius:8px;background:var(--paper);box-shadow:0 16px 50px #40382c12}.auth-card h2{font:700 31px/1.2 var(--serif)}.auth-card .button{width:100%;margin:14px 0}.auth-switch{text-align:center;font-size:13px;color:var(--muted)}
.app-header{display:flex;align-items:center;gap:30px;height:58px;padding:0 20px;border-bottom:1px solid var(--line);background:#f7f5f0}.app-header nav{display:flex;align-self:stretch;gap:4px}.app-header nav button{position:relative;min-width:72px;border:0;background:transparent;color:var(--muted)}.app-header nav button.active{color:var(--ink);font-weight:750}.app-header nav button.active:after{content:"";position:absolute;right:15px;bottom:0;left:15px;height:2px;background:var(--accent)}.header-spacer{flex:1}.header-user{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:var(--muted)}.article-media{display:block;max-width:100%;max-height:65vh;margin:15px 0 30px;object-fit:contain}.article-media[src]{background:#f3f0e9}
.workspace{display:grid;grid-template-columns:minmax(290px,340px) minmax(0,1fr);height:calc(100dvh - 58px);overflow:hidden}.list-pane{display:flex;flex-direction:column;min-width:0;border-right:1px solid var(--line);background:var(--tray)}.list-top{padding:17px 15px 10px;border-bottom:1px solid var(--line)}.list-top h1{margin:0 0 13px;font:700 24px/1.2 var(--serif)}.filters{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}.filters button{padding:5px 8px;border:1px solid transparent;border-radius:4px;background:transparent;color:var(--muted);font-size:12px}.filters button.active{border-color:var(--line);background:var(--paper);color:var(--ink);font-weight:700}.list-count{padding:9px 15px;color:var(--muted);font-size:11px}.cards{min-height:0;overflow-y:auto;padding:0 9px 18px}.card{display:block;width:100%;padding:15px 13px;margin:0 0 3px;border:1px solid transparent;border-radius:5px;background:transparent;text-align:left}.card:hover,.card.selected{border-color:#e3ddd2;background:var(--paper)}.card.selected{border-left:2px solid var(--accent)}.card-top{display:flex;gap:7px;color:var(--muted);font-size:10px}.card-top time{margin-left:auto}.card h2{margin:7px 0;font-size:14px;line-height:1.45}.card p{display:-webkit-box;margin:0;overflow:hidden;color:var(--muted);font:13px/1.55 var(--serif);-webkit-line-clamp:2;-webkit-box-orient:vertical}.dot{width:6px;height:6px;margin-top:4px;border-radius:50%;background:var(--accent)}.load-more{margin:12px auto}.detail-pane{min-width:0;padding:14px;overflow:hidden}.paper{display:flex;flex-direction:column;width:100%;height:100%;border:1px solid #ded9d0;border-radius:5px;background:var(--paper);box-shadow:0 10px 28px #534b3f11}.paper-toolbar{display:flex;align-items:center;gap:8px;min-height:52px;padding:8px 15px;border-bottom:1px solid #e5e0d8}.paper-toolbar .spacer{flex:1}.paper-scroll{min-height:0;overflow-y:auto;padding:clamp(24px,5vw,62px)}.article{max-width:740px;margin:0 auto}.article h1{font:700 clamp(27px,3vw,39px)/1.35 var(--serif)}.article-meta{margin:14px 0 35px;color:var(--muted);font-size:12px}.article-body{white-space:pre-wrap;overflow-wrap:anywhere;font:18px/1.95 var(--serif)}.source-box,.note-box{max-width:740px;margin:35px auto 0;padding-top:20px;border-top:1px solid var(--line)}.source-box dl{display:grid;grid-template-columns:auto 1fr;gap:8px 15px;font-size:12px}.source-box dt{color:var(--muted)}.source-box dd{margin:0;overflow-wrap:anywhere}.note-actions,.row-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.notice-banner{padding:9px 14px;border-bottom:1px solid var(--line);background:#fbf0d9;color:#735019;font-size:12px}.account-page{max-width:920px;margin:0 auto;padding:35px 20px 90px}.account-page h1{font:700 34px/1.3 var(--serif)}.panel{margin:22px 0;padding:25px;border:1px solid var(--line);border-radius:6px;background:var(--paper)}.panel h2{font:700 23px/1.3 var(--serif)}.panel p{color:var(--muted);line-height:1.7}.endpoint{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:10px 0;border-top:1px solid var(--line)}.binding-code{display:block;max-width:100%;margin:14px 0;padding:15px;border:1px dashed var(--accent);border-radius:5px;background:#fbf6ec;overflow-wrap:anywhere;font:700 17px/1.5 var(--sans);letter-spacing:.08em}#notice{position:fixed;right:18px;bottom:18px;z-index:10;max-width:min(450px,calc(100vw - 36px));padding:0;border-radius:6px;box-shadow:0 12px 35px #0002}#notice:not(:empty){padding:13px 18px;background:var(--ink);color:var(--paper)}
@media(max-width:800px){.auth-page{grid-template-columns:1fr}.auth-story{min-height:225px;padding:28px;border-right:0;border-bottom:1px solid var(--line)}.auth-story h1{font-size:38px}.auth-story p:not(.eyebrow){font-size:15px}.auth-story small{display:none}.auth-panel{padding:25px}.workspace{grid-template-columns:minmax(240px,37%) minmax(0,1fr)}.paper-scroll{padding:25px}.header-user{display:none}}@media(max-width:620px){.app-header{gap:10px;padding:0 12px}.app-header nav button{min-width:55px}.workspace{display:block;height:calc(100dvh - 58px)}.list-pane,.detail-pane{width:100%;height:100%}.workspace.has-detail .list-pane{display:none}.workspace:not(.has-detail) .detail-pane{display:none}.detail-pane{padding:8px}.paper-scroll{padding:20px}.paper-toolbar{padding:8px}.paper-toolbar .button{padding:6px 9px}.mobile-back{display:inline-flex!important}.auth-card{padding:28px}.auth-story{min-height:190px}.auth-story h1{font-size:33px}.auth-story p:not(.eyebrow){margin-bottom:0}}@media(min-width:621px){.mobile-back{display:none!important}}
.ai-box{max-width:740px;margin:35px auto 0;padding:22px 0 30px;border-top:1px solid var(--line)}.ai-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.ai-heading h2{margin:0 0 18px;font:700 22px/1.3 var(--serif)}.ai-summary{font:17px/1.8 var(--serif);white-space:pre-wrap}.ai-evidence{padding:12px 15px;border-left:2px solid var(--accent);background:#f8f4eb;color:var(--muted);font:14px/1.7 var(--serif)}.ai-relations{padding-left:22px}.ai-relations li{margin:14px 0}.ai-relations p{margin:5px 0}.ai-footnote{margin:20px 0 0;color:var(--muted);font-size:12px;line-height:1.6}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.search-form{display:flex;gap:5px;margin:8px 0 12px}.search-form input{min-width:0;flex:1;min-height:36px;padding:6px 9px;border:1px solid var(--line);border-radius:5px;background:var(--paper);font-size:12px}.search-form .button{min-height:36px;padding:5px 8px;font-size:12px}.save-alert{color:#a4473f;font-weight:700}.save-message{padding:10px 12px;border-left:2px solid var(--danger);background:#fbf1ed;color:#713e39;font-size:13px;line-height:1.6}
.web-tabs{display:flex;flex-wrap:wrap;gap:7px;margin:14px 0 18px}.web-tabs .button{min-height:34px;font-size:12px}.web-tabs .button.active{border-color:var(--accent);background:#f6f0e5;color:var(--ink)}.web-provenance{margin:0 0 26px;color:var(--muted);font-size:12px;line-height:1.6}.reader-blocks{font:18px/1.95 var(--serif);overflow-wrap:anywhere}.reader-blocks h1,.reader-blocks h2,.reader-blocks h3{margin:1.4em 0 .6em;font-family:var(--serif);line-height:1.4}.reader-blocks h1{font-size:1.5em}.reader-blocks h2{font-size:1.3em}.reader-blocks h3{font-size:1.15em}.reader-blocks p,.reader-blocks blockquote,.reader-blocks li{margin:0 0 1.1em}.reader-blocks blockquote{padding-left:1.2em;border-left:2px solid var(--accent);color:var(--muted)}.reader-blocks pre,.snapshot-source{white-space:pre-wrap;overflow-wrap:anywhere}.snapshot-source{max-height:70vh;padding:18px;overflow:auto;border:1px solid var(--line);background:#f5f2ec;font:12px/1.6 ui-monospace,Consolas,monospace}
.snapshot-frame{display:block;width:100%;height:65vh;margin:18px 0;border:1px solid var(--line);border-radius:5px;background:var(--paper)}.snapshot-source-details{margin:20px 0 30px;color:var(--muted);font-size:12px}.snapshot-source-details summary{cursor:pointer}.snapshot-source-details .snapshot-source{margin-top:12px;color:var(--ink)}
.document-segment{margin:0 0 1.8em}.document-segment p{white-space:pre-wrap}.document-locator{margin:0 0 .45em!important;color:var(--accent);font:700 12px/1.5 var(--sans)}
.item-threads{max-width:740px;margin:35px auto 0;padding-top:20px;border-top:1px solid var(--line)}.item-threads .row-actions{margin-top:14px}.threads-workspace .list-top p.muted{margin:0;font:13px/1.7 var(--serif)}.thread-article{padding-bottom:65px}.thread-summary{max-width:680px;margin:30px 0 12px;font:19px/1.75 var(--serif)}.thread-members{margin-top:42px;border-top:1px solid var(--line)}.thread-member{padding:22px 0;border-bottom:1px solid var(--line)}.thread-member h2{margin:0 0 12px;font:700 21px/1.4 var(--serif)}.thread-member h2 .link-button{font:inherit;text-align:left}.thread-member p:not(.eyebrow){margin:0 0 10px;color:var(--muted);font:15px/1.7 var(--serif)}.thread-member blockquote{margin:0;padding:7px 0 7px 14px;border-left:2px solid var(--accent);color:var(--muted);font:14px/1.7 var(--serif)}
.structured-article{max-width:620px}.structured-article>p{font:14px/1.7 var(--serif)}.structured-article dl{margin:28px 0 18px;border-top:1px solid var(--line)}.structured-row{display:grid;grid-template-columns:100px minmax(0,1fr) auto;align-items:center;gap:12px;padding:17px 0;border-bottom:1px solid var(--line)}.structured-row dt{color:var(--muted);font-size:13px}.structured-row dd{margin:0;overflow-wrap:anywhere;font:17px/1.65 var(--serif)}.structured-row .link-button{font-size:12px}.structured-article small{display:block;line-height:1.7}@media(max-width:620px){.structured-row{grid-template-columns:70px minmax(0,1fr) auto;gap:8px}}
.ai-summary-actions{margin:14px 0 22px}.ai-summary-actions .button{min-height:34px;padding:6px 12px;font-size:12px}.ai-dismissed>.ai-summary{margin-top:16px}.ai-dismissed>summary{cursor:pointer;color:var(--accent);font-size:13px;line-height:1.6}
.ai-heading{align-items:flex-end;flex-wrap:wrap;margin-bottom:18px}.ai-heading h2{margin-bottom:0}.ai-heading-actions{display:flex;align-items:center;gap:9px;color:var(--faint);font-size:12px;white-space:nowrap}.ai-text-action{min-height:32px;padding:3px 0;border:0;background:transparent;color:var(--muted);font-size:12px;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px}.ai-text-action:hover{color:var(--accent);text-decoration-color:currentColor}.ai-text-action:disabled{color:var(--faint);text-decoration:none}.ai-progress{margin:0 0 18px;font-size:12px;line-height:1.65}

/* Reading actions stay secondary so the reading surface gets the height. */
.paper-toolbar{flex:none;gap:12px;min-width:0;position:relative;z-index:5}
.paper-scroll{flex:1}
.sync-warning{margin:10px 0 0;padding:9px 10px;border-left:2px solid #b58d47;background:#fbf0d9;color:#735019;font-size:12px;line-height:1.5}
.sync-detail{display:block;margin-top:4px;color:var(--muted);font-size:12px;line-height:1.5}
.toolbar-context{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.toolbar-context .quiet{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.reader-menu{position:relative;flex:none}
.reader-menu summary{display:grid;place-items:center;width:40px;height:40px;border:1px solid transparent;border-radius:4px;list-style:none;cursor:pointer;font-size:21px;line-height:1;color:var(--muted)}
.reader-menu summary::-webkit-details-marker{display:none}
.reader-menu summary:hover,.reader-menu[open] summary{border-color:var(--line);background:var(--tray);color:var(--ink)}
.reader-menu .toolbar-actions{position:absolute;top:44px;right:0;z-index:10;display:flex;flex-direction:column;align-items:stretch;gap:4px;width:max-content;min-width:170px;max-width:min(260px,calc(100vw - 24px));padding:7px;border:1px solid var(--line);border-radius:4px;background:var(--paper);box-shadow:0 10px 24px #40382c1a}
.reader-menu .toolbar-actions .button{min-height:40px;text-align:left;border:0;background:transparent;font-size:13px;font-weight:500}
.reader-menu .toolbar-actions .button:hover{background:var(--tray)}
.reader-menu .toolbar-actions .button.danger{color:var(--danger)}
.toolbar-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px}
@media(min-width:901px){
  .workspace.focus-reading{grid-template-columns:minmax(0,1fr)}
  .workspace.focus-reading .list-pane{display:none}
}
@media(max-width:639px), (max-width:1100px) and (max-height:559px), (max-width:1100px) and (aspect-ratio < 6/7){
  .workspace{display:block;height:calc(100dvh - 58px)}
  .list-pane,.detail-pane{width:100%;height:100%}
  .workspace.has-detail .list-pane{display:none}
  .workspace:not(.has-detail) .detail-pane{display:none}
  .detail-pane{padding:0}
  .paper{border:0;border-radius:0;box-shadow:none}
  .paper-toolbar{min-height:48px;padding:4px 18px}
  .paper-scroll{padding:clamp(20px,4vw,38px)}
  .mobile-back{display:inline-flex!important}
}
@media(max-width:620px){
  .paper-toolbar{padding:9px 14px}
  .paper-scroll{padding:20px 20px max(28px,env(safe-area-inset-bottom,0px))}
  .toolbar-context .mobile-back{min-height:44px;white-space:nowrap}
  .article-body,.reader-blocks{font-size:17px;line-height:1.88}
}

/* The library navigation and cards share one scrollport; the reader stays independent. */
.list-pane{overflow-y:auto;overscroll-behavior:contain}
.list-top,.list-count,.cards{flex:none}
.cards{min-height:0;overflow:visible}
.workspace:not(.threads-workspace) .list-top{position:relative;padding:12px 12px 8px}
.workspace:not(.threads-workspace) .list-top h1{margin-bottom:9px;padding-right:92px}
.workspace:not(.threads-workspace) .search-form{margin:7px 0 10px}
.workspace:not(.threads-workspace) .list-count{padding:6px 12px}
.workspace:not(.threads-workspace) .sync-warning{margin-top:7px;padding:6px 8px;line-height:1.4}
.type-filters{display:flex;flex-wrap:nowrap;gap:4px;margin:0;overflow-x:auto;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.type-filters button{flex:none;min-height:36px;padding:5px 10px;white-space:nowrap}
.type-filters::-webkit-scrollbar{height:3px}
.list-options{position:absolute;top:10px;right:12px;z-index:3;color:var(--muted);font-size:12px}
.list-options summary{display:block;min-height:32px;padding:7px 9px;border:1px solid var(--line);border-radius:5px;background:var(--paper);cursor:pointer;list-style:none;white-space:nowrap}
.list-options summary::-webkit-details-marker{display:none}
.list-options[open]{width:min(300px,calc(100% - 24px));padding:0 9px 9px;border:1px solid var(--line);border-radius:6px;background:var(--paper);box-shadow:0 12px 30px #40382c25}
.list-options[open] summary{margin:0 -9px 7px;border:0;border-bottom:1px solid var(--line);border-radius:5px 5px 0 0}
.list-option-body .filters{gap:4px;margin:6px 0}
.list-option-body .filters button{min-height:34px;padding:6px 8px}

/* Editorial reading direction: content first, precise lines, small radii. */
:root{
  --environment:#f5f7f5;--tray:#f7f8f6;--paper:#fff;--ink:#202926;
  --muted:#697570;--faint:#8b9791;--accent:#405f53;--line:#e1e6e1;
  --serif:"Noto Serif CJK SC","Songti SC",STSong,SimSun,serif;
}
.brand{gap:9px;font-family:"Avenir Next",Avenir,"Segoe UI",sans-serif;font-size:18px;font-weight:720;letter-spacing:-.02em;white-space:nowrap}
.brand-symbol{display:block;width:27px;height:27px;flex:0 0 27px;object-fit:contain}
.app-header{background:#fff;border-bottom-color:var(--line)}
.app-header nav button{min-width:64px;font-weight:560}
.app-header nav button.active{font-weight:680}
.app-header nav button.active:after{background:var(--accent);height:2px}
.workspace{grid-template-columns:minmax(292px,322px) minmax(0,1fr);background:#fff}
.list-pane{background:var(--tray);border-right-color:var(--line)}
.workspace:not(.threads-workspace) .list-top{padding:21px 18px 11px;border-bottom:0}
.workspace:not(.threads-workspace) .list-top h1{font:650 26px/1.35 var(--serif);margin-bottom:17px}
.search-form{gap:5px;margin:10px 0 13px}
.search-form input{border:0;border-bottom:1px solid #c9d3cb;border-radius:0;background:transparent;padding:7px 2px;font-size:12px}
.search-form input:focus{outline:none;border-bottom-color:var(--accent)}
.search-form .button{border:0;border-radius:3px;background:transparent;color:var(--accent);font-weight:600}
.type-filters{gap:13px;border-bottom:1px solid var(--line)}
.type-filters button{min-height:36px;padding:5px 0;border:0!important;border-bottom:2px solid transparent!important;border-radius:0;background:transparent!important;font-size:12px}
.type-filters button.active{border-bottom-color:var(--accent)!important;color:var(--ink)}
.list-count{color:var(--faint)}
.cards{padding:0}
.card{padding:18px 20px 19px;margin:0;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent}
.card:hover,.card.selected{border:0;border-bottom:1px solid var(--line);background:#fff}
.card.selected{border-left:2px solid var(--accent);padding-left:18px}
.card-top{min-height:0}
.card-top:empty{display:none}
.card-title-row{display:flex;align-items:flex-start;gap:8px;min-width:0}
.card-title-row h2{flex:1;min-width:0;margin:0 0 5px;font-size:14px;line-height:1.5;font-weight:650}
.card-title-row .dot{flex:none;margin:7px 0 0}
.card-kind{color:var(--faint);font:500 11px/1.4 var(--sans);letter-spacing:0}
.card-meta{display:flex;align-items:center;gap:5px;margin:0 0 4px;color:var(--faint);font-size:11px}
.card-meta time{margin-left:0}
.card-meta-separator{color:var(--line)}
.card p{color:var(--muted);font-family:var(--sans);font-size:11px;line-height:1.55;-webkit-line-clamp:1}
.card-main{display:flex;align-items:flex-start;gap:12px;min-width:0}
.card-copy{min-width:0;flex:1}
.card-thumb{position:relative;display:grid;place-items:center;width:72px;height:60px;flex:none;overflow:hidden;border:1px solid var(--line);border-radius:3px;background:#eef1ed}
.card-thumb-fallback{display:block;width:29px;height:29px;object-fit:contain;opacity:.42}
.card-thumbnail{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover;border:0;border-radius:0;background:var(--paper)}
.card-thumbnail[hidden]{display:none}
.detail-pane{padding:0;background:#fff}
.paper{border:0;border-radius:0;background:#fff;box-shadow:none}
.paper-toolbar{min-height:49px;padding:4px 26px;background:#fff;border-bottom:1px solid var(--line)}
.paper-scroll{padding:clamp(32px,4.4vw,68px) clamp(24px,4.4vw,68px) 90px}
.article,.source-box,.note-box,.ai-box,.item-threads{max-width:730px}
.article h1{font:650 clamp(29px,3vw,40px)/1.36 var(--serif);letter-spacing:-.025em;margin:0 0 28px}
.article-meta{margin:0 0 34px}
.web-tabs{gap:22px;margin:11px 0 21px;border-bottom:1px solid var(--line)}
.web-tabs .button{min-height:36px;padding:4px 0;border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;font-size:12px;font-weight:550;color:var(--muted)}
.web-tabs .button.active{border:0;border-bottom:2px solid var(--accent);background:transparent;color:var(--ink);font-weight:700}
.web-provenance{margin:0 0 29px;color:var(--faint);font-size:11px}
.reader-blocks{font:18px/1.96 var(--serif);letter-spacing:.005em}
.reader-blocks p,.reader-blocks li{margin:0 0 1.3em}
.reader-blocks h2{margin:2.1em 0 .8em;font-size:1.35em}
.reader-figure{margin:2em auto 2.2em;max-width:100%;text-align:center}
.reader-figure img{display:block;max-width:100%;height:auto;margin:0 auto;background:#f4f6f4}
.reader-figure figcaption{margin:12px auto 0;color:var(--muted);font:12px/1.7 var(--sans)}
.reader-image-unavailable{padding:30px 20px;border:1px dashed var(--line);border-radius:3px;color:var(--muted);background:var(--tray);font:13px/1.7 var(--sans)}
.reader-blocks ul,.reader-blocks ol{padding-left:1.45em;margin:0 0 1.3em}
.reader-blocks li{margin-bottom:.45em}
.reader-blocks a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:.14em}
.reader-blocks code{font:.82em/1.5 ui-monospace,Consolas,monospace;background:var(--tray);padding:.08em .25em}
.reader-layout-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr));gap:clamp(10px,2vw,20px);margin:1.4em 0 1.8em}
.reader-layout-card{min-width:0;padding:clamp(14px,2vw,24px);border:1px solid var(--line);border-radius:3px}
.reader-layout-card > :last-child{margin-bottom:0}
.reader-table-scroll{max-width:100%;margin:1.6em 0 2em;overflow-x:auto;overscroll-behavior-inline:contain;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.reader-table-scroll:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.reader-table-scroll table{width:100%;min-width:540px;border-collapse:collapse;font:14px/1.6 var(--sans);letter-spacing:0;overflow-wrap:normal}
.reader-table-scroll caption{padding:0 0 10px;text-align:left;color:var(--muted);font:12px/1.6 var(--sans)}
.reader-table-scroll th,.reader-table-scroll td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.reader-table-scroll thead th{background:var(--tray)}
.reader-table-scroll tbody tr:last-child th,.reader-table-scroll tbody tr:last-child td{border-bottom:0}
.reader-table-scroll .reader-image-open{max-width:320px;margin:8px 0}
.reader-table-scroll .reader-image-open img{display:block;max-width:100%;max-height:260px;object-fit:contain}
.reader-table-image-unavailable{display:inline-block;padding:8px 10px;border:1px dashed var(--line);color:var(--muted);font-size:12px}
.reader-video{margin:1.8em 0;padding:22px;border:1px solid var(--line);background:var(--tray);font:14px/1.7 var(--sans);color:var(--muted)}
.reader-video video,.reader-video iframe{display:block;width:100%;max-height:68vh;aspect-ratio:16/9;border:0;background:#101010}
.reader-video figcaption{margin-top:10px;font-size:12px}
.external-video{padding:18px;border-radius:3px}
.external-video .button{min-height:38px}
.external-video iframe{max-height:min(68vh,720px)}
.external-video figcaption a{margin-left:8px;color:var(--accent);text-underline-offset:3px}
.reader-upgrade{padding:10px 13px;margin:0 0 24px;border-left:2px solid var(--accent);background:var(--tray);font:12px/1.7 var(--sans);color:var(--muted)}
.reader-upgrade .link-button{margin-left:8px;color:var(--accent);font-weight:650}
.reader-feedback{margin:46px 0 0;padding:20px 0 0;border-top:1px solid var(--line);font:12px/1.6 var(--sans);color:var(--muted)}
.reader-feedback p{margin:0 0 10px}
.reader-feedback-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.reader-feedback-actions .button{min-height:34px;padding:5px 14px;border-radius:3px;font-size:12px}
.reader-feedback-actions .button[aria-pressed="true"]{border-color:var(--accent);color:var(--accent);background:var(--tray)}
.reader-feedback-actions [role="status"]{margin-left:4px;color:var(--faint)}
.file-original-preview{display:flex;flex-wrap:wrap;align-items:baseline;gap:5px 16px;margin:0 0 26px;font:13px/1.6 var(--sans)}
.file-original-preview a{color:var(--accent);text-underline-offset:3px}
.file-original-preview span{color:var(--muted);font-size:11px}
.file-original-preview a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.toolbar-context .mobile-back{min-height:40px;padding:0 8px 0 0;border:0;background:transparent;color:var(--muted);font-size:12px;font-weight:550}
.toolbar-context .mobile-back:hover{color:var(--ink);background:transparent}
.source-box,.note-box,.ai-box,.item-threads{border-top-color:var(--line)}
.button,.field input,.field textarea,.panel,.auth-card{border-radius:3px}
@media(max-width:900px){
  .paper-scroll{padding:clamp(22px,4vw,34px) clamp(20px,5vw,42px) 72px}
  .article h1{font-size:clamp(27px,4.5vw,37px)}
  .reader-blocks{font-size:17px;line-height:1.9}
}
@media(max-width:620px){
  .brand-symbol{width:24px;height:24px;flex-basis:24px}
  .brand{font-size:17px}
  .paper-toolbar{padding:4px 14px}
  .paper-scroll{padding:24px 19px 64px}
  .article h1{font-size:28px}
  .reader-blocks{font-size:17px;line-height:1.85}
}

/* Two reading compositions share the same trusted blocks and saved original. */
.reader-paper-book{background:#fbfaf6}
.reader-paper-editorial{background:#fff}
.reader-style-control{display:inline-flex;align-items:center;gap:6px;margin-left:auto;color:var(--muted);font-size:11px;white-space:nowrap}
.reader-style-control select{min-height:32px;padding:3px 17px 3px 4px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:#fff;color:var(--ink);font-size:12px;cursor:pointer}
.reader-section-heading{min-width:0;margin:2.2em 0 .9em}
.reader-section-heading h2,.reader-section-heading h3,.reader-section-heading h4{margin:0}
.reader-style-book .reader-section-heading{display:flex;align-items:baseline;gap:13px;padding-top:17px;border-top:1px solid var(--line)}
.reader-style-book .reader-section-number{flex:none;color:var(--muted);font:600 15px/1.5 var(--sans)}
.reader-style-book .reader-section-heading h2,.reader-style-book .reader-section-heading h3,.reader-style-book .reader-section-heading h4{font:650 21px/1.45 var(--sans);text-align:left}
.reader-style-editorial{max-width:760px}
.reader-style-editorial h1{font:700 clamp(29px,3.2vw,40px)/1.32 var(--sans);letter-spacing:-.035em}
.reader-style-editorial .reader-blocks{font:17px/1.82 var(--sans);letter-spacing:0}
.reader-style-editorial .reader-blocks h2{margin:2.3em 0 .9em;font:700 24px/1.42 var(--sans);text-align:center}
.reader-style-editorial .reader-blocks h3,.reader-style-editorial .reader-blocks h4{font-family:var(--sans);font-weight:700}
.reader-style-editorial .reader-section-heading{margin:3em 0 1.5em;text-align:center}
.reader-style-editorial .reader-section-number{display:block;color:#126e60;font:750 clamp(55px,6vw,72px)/1 var(--sans);letter-spacing:-.055em}
.reader-style-editorial .reader-section-heading h2,.reader-style-editorial .reader-section-heading h3,.reader-style-editorial .reader-section-heading h4{margin:8px 0 0;font:700 23px/1.4 var(--sans);text-align:center}
.reader-style-editorial .reader-table-scroll{border-color:#d3e1dc}
.reader-style-editorial .reader-table-scroll thead th{background:#edf5f1;color:#1f5f50;font-weight:700}
.reader-style-editorial .reader-figure figcaption{font-family:var(--sans)}
.standalone-image-open,.reader-image-open{display:block;max-width:100%;padding:0;border:0;background:transparent;cursor:zoom-in}
.standalone-image-open .article-media{margin:15px 0 30px}
.reader-image-open{margin:0 auto}
.reader-image-open:focus-visible,.standalone-image-open:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.image-viewer{width:min(96vw,1400px);max-width:none;height:min(94dvh,1000px);max-height:none;margin:auto;padding:0;border:1px solid #aaa69f;border-radius:3px;background:#f8f7f4;color:var(--ink);box-shadow:0 18px 70px #0005}
.image-viewer::backdrop{background:#171a1ad9}
.image-viewer-inner{display:flex;flex-direction:column;width:100%;height:100%;min-height:0}
.image-viewer-toolbar{display:flex;align-items:center;gap:15px;min-height:56px;padding:6px 17px;border-bottom:1px solid var(--line)}
.image-viewer-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:600 13px/1.5 var(--sans)}
.image-viewer-actions{display:flex;align-items:center;gap:6px;flex:none}
.image-viewer-actions button,.image-viewer-actions a{display:inline-flex;align-items:center;justify-content:center;min-width:38px;min-height:38px;padding:5px 9px;border:1px solid var(--line);border-radius:3px;background:#fff;color:var(--ink);font:12px/1.4 var(--sans);text-decoration:none;cursor:pointer}
.image-viewer-actions button:disabled{opacity:.4;cursor:default}
.image-viewer-actions button:focus-visible,.image-viewer-actions a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.image-viewer-actions [data-zoom-label]{min-width:34px;text-align:center;font:12px/1 var(--sans)}
.image-viewer-stage{flex:1;min-height:0;overflow:auto;overscroll-behavior:contain}
.image-viewer-canvas{display:flex;align-items:center;justify-content:center;min-width:100%;min-height:100%}
.image-viewer img{display:block;max-width:none;height:auto}
.image-viewer-error{padding:20px;color:var(--muted);font:13px/1.6 var(--sans)}
@media(max-width:620px){
  .reader-style-control{font-size:10px}
  .reader-style-control select{font-size:11px}
  .reader-style-editorial .reader-blocks{font-size:16px;line-height:1.82}
  .reader-style-editorial .reader-section-heading{margin:2.4em 0 1.2em}
  .reader-style-editorial .reader-section-heading h2,.reader-style-editorial .reader-section-heading h3,.reader-style-editorial .reader-section-heading h4{font-size:20px}
  .image-viewer{width:100vw;height:100dvh;border:0;border-radius:0}
  .image-viewer-toolbar{gap:6px;min-height:54px;padding:5px 8px}
  .image-viewer-title{font-size:11px}
  .image-viewer-actions{gap:3px}
  .image-viewer-actions button,.image-viewer-actions a{min-width:40px;min-height:44px;padding:4px 6px;font-size:11px}
  .image-viewer-actions [data-zoom-label]{min-width:29px;font-size:11px}
}

/* Single-pane phones and tall unfolded screens use one page scrollport. */
@media(max-width:639px), (max-width:1100px) and (max-height:559px), (max-width:1100px) and (aspect-ratio < 6/7){
  html,body{overflow-x:clip;overflow-y:visible}
  .app-header{position:sticky;top:-58px;z-index:20;transition:top .18s ease}
  #app.nav-revealed .app-header{top:0}
  .workspace:not(.has-detail),.workspace.has-detail{height:auto;min-height:calc(100dvh - 58px);overflow:visible}
  .workspace:not(.has-detail) .list-pane,.workspace.has-detail .detail-pane{height:auto;min-height:calc(100dvh - 58px);overflow:visible}
  .workspace.has-detail .paper{height:auto;min-height:calc(100dvh - 58px)}
  .workspace.has-detail .paper-scroll{overflow:visible}
  .workspace:not(.has-detail) .list-pane{overflow:visible;overscroll-behavior:auto}
}

/* Nearly square inner screens and wide landscape folds: 40% list, 60% reader. */
@media(min-width:640px) and (max-width:1100px) and (min-height:560px) and (min-aspect-ratio:6/7){
  .workspace{grid-template-columns:minmax(0,2fr) minmax(0,3fr)}
  .workspace.focus-reading{grid-template-columns:minmax(0,1fr)}
  .workspace.focus-reading .list-pane{display:none}
  .workspace:not(.threads-workspace) .list-top{padding:13px 15px 9px}
  .workspace:not(.threads-workspace) .list-top h1{font-size:23px;margin-bottom:10px}
  .workspace .card{padding:14px 15px}
  .workspace .card.selected{padding-left:13px}
  .workspace .card-thumb{width:62px;height:54px}
  .workspace .card-main{gap:10px}
  .workspace .paper-toolbar{min-height:45px;padding:3px 13px}
  .workspace .paper-scroll{padding:22px clamp(16px,2.6vw,28px) max(48px,env(safe-area-inset-bottom,0px));overscroll-behavior-y:contain}
  .workspace .article h1{font-size:clamp(24px,3.2vw,32px)}
  .workspace .reader-blocks{font-size:16px;line-height:1.86}
  .app-header{transition:transform .18s ease,opacity .18s ease}
  #app.nav-hidden .app-header{transform:translateY(-100%);opacity:0;pointer-events:none}
  #app.nav-hidden .workspace{margin-top:-58px;height:100dvh}
}
@media(prefers-reduced-motion:reduce){.app-header{transition:none}}

/* Keep the login story and form as one centered composition on wide screens. */
@media(min-width:801px){
  .auth-story{align-items:flex-end;padding-right:clamp(36px,5vw,100px)}
  .auth-story>*{width:min(100%,500px)}
  .auth-panel{justify-items:start;padding-left:clamp(36px,5vw,100px)}
}