:root{font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#1f2933;background:#f5f6f8;font-synthesis:none;text-rendering:optimizeLegibility;--muted:#707985;--line:#e7e9ed;--blue:#5269cb;--blue-soft:#eff1ff;--paper:#fff}
*{box-sizing:border-box}body{margin:0;min-width:320px}.topbar{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1440px)/2));position:sticky;top:0;z-index:5}.brand{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none}.brand-mark{height:36px;width:36px;border-radius:12px;background:#596fd0;color:white;display:grid;place-items:center;font-size:19px;font-weight:700}.brand strong,.brand small{display:block}.brand strong{font-size:14px}.brand small{font-size:10px;color:var(--muted);margin-top:2px}.topbar-meta{display:flex;align-items:center;gap:20px;font-size:12px;color:var(--muted)}.topbar-meta a{color:inherit;text-decoration:none}.sync-status{display:flex;align-items:center;gap:7px}.sync-status:before{content:"";height:7px;width:7px;background:#aab0ba;border-radius:100%}.sync-status.is-ready:before{background:#42aa81}.sync-status.is-error:before{background:#d56c63}.shell{max-width:1440px;margin:auto;padding:30px 28px 50px}.toolbar{display:flex;align-items:end;gap:14px;margin-bottom:20px}.search-field{height:42px;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:0 12px;flex:1;max-width:540px;color:#9299a4}.search-field>span{font-size:22px}.search-field input{border:0;outline:0;min-width:0;flex:1;font:inherit;font-size:13px}.search-field kbd{font-size:10px;border:1px solid var(--line);border-radius:4px;padding:2px 5px;color:#969da7}.filter-label{display:flex;flex-direction:column;gap:5px;font-size:10px;color:var(--muted)}.filter-label select{height:42px;min-width:110px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:0 28px 0 11px;color:#333b47;font:inherit;font-size:12px}.sort-label{margin-left:auto}.reader{display:grid;grid-template-columns:minmax(310px,390px) minmax(0,1fr);min-height:calc(100vh - 180px);background:var(--paper);border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 3px 16px #24334d08}.list-panel{border-right:1px solid var(--line);min-width:0}.list-heading{height:86px;padding:20px 22px 12px;display:flex;align-items:end;justify-content:space-between}.eyebrow{margin:0 0 6px;color:#8d95a1;letter-spacing:.12em;font-weight:700;font-size:9px}.list-heading h1{margin:0;font-size:22px;letter-spacing:-.03em}.result-count{font-size:11px;color:var(--muted);padding-bottom:5px}.article-list{border-top:1px solid #f0f1f3}.article-card{width:100%;text-align:left;display:block;border:0;border-bottom:1px solid #eff0f2;background:white;padding:15px 21px 16px;cursor:pointer;color:inherit;transition:background .15s}.article-card:hover{background:#fafaff}.article-card.is-selected{background:var(--blue-soft);box-shadow:inset 3px 0 var(--blue)}.card-meta{display:flex;align-items:center;gap:7px;color:#828a95;font-size:10px}.card-meta time{margin-left:auto;white-space:nowrap}.read-dot{width:6px;height:6px;border-radius:50%;background:#6279dc;flex:none}.read-dot.is-read{background:#c7cbd1}.card-title{display:block;font-size:13px;line-height:1.65;font-weight:600;margin:7px 0 5px}.card-summary{display:block;font-size:10px;color:#949ba5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.detail-panel{min-width:0;padding:0 40px 64px;overflow-y:auto;max-height:calc(100vh - 180px)}.article-content{max-width:800px;margin:0 auto}.article-header{padding:40px 0 24px;border-bottom:1px solid var(--line)}.article-header .eyebrow{font-size:10px;margin-bottom:12px}.article-header h1{font-size:28px;line-height:1.5;letter-spacing:-.025em;margin:0 0 7px}.original-title{font-size:13px;line-height:1.7;color:#7b8490;margin:0 0 20px}.provenance{display:flex;flex-wrap:wrap;gap:12px 27px;margin:20px 0 17px}.provenance-item{margin:0}.provenance dt{font-size:9px;color:#939aa4;margin-bottom:4px}.provenance dd{margin:0;font-size:11px;color:#48515e}.source-link{font-size:11px;color:var(--blue);font-weight:600;text-decoration:none}.source-link:hover{text-decoration:underline}.prose{font-size:15px;line-height:1.95;color:#38414d;padding-top:16px;overflow-wrap:anywhere}.prose h1,.prose h2,.prose h3,.prose h4{font-size:1.28em;line-height:1.55;margin:1.6em 0 .65em;color:#222a35}.prose p{margin:0 0 1.2em}.prose a{color:#4d62be;text-decoration:underline;text-underline-offset:3px}.prose ul,.prose ol{padding-left:1.5em;margin:0 0 1.2em}.prose li{padding-left:.2em;margin:.25em 0}.prose blockquote{margin:1.2em 0;padding:3px 0 3px 18px;border-left:3px solid #d9def4;color:#68717f}.prose pre{background:#f5f6f8;border:1px solid var(--line);border-radius:7px;padding:15px;overflow:auto;font:12px/1.7 ui-monospace,SFMono-Regular,monospace}.prose code{font:.88em ui-monospace,SFMono-Regular,monospace;background:#f1f2f5;border-radius:3px;padding:2px 4px}.prose pre code{padding:0;background:transparent}.prose table{width:100%;border-collapse:collapse;font-size:12px;margin:1.3em 0}.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left}.prose th{background:#f7f8fa}.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}.empty-detail{min-height:430px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#818a96}.empty-detail h2{font-size:17px;color:#3e4753;margin:17px 0 4px}.empty-detail p{font-size:12px;margin:0}.empty-icon{font-size:25px;color:#7585d7}.list-empty{font-size:12px;color:#89919c;text-align:center;padding:30px 15px}.notice{padding:12px 15px;border:1px solid #f1d4bd;background:#fff9f3;border-radius:7px;color:#875d3b;font-size:12px;margin:0 0 15px}.detail-loading,.detail-error{padding:50px 12px;text-align:center;color:var(--muted);font-size:13px}.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at 50% 40%,#fff 0,#f2f4f8 75%)}.login-card{width:min(420px,100%);background:#fff;padding:42px;border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 45px #25344f0c;text-align:center}.login-card .brand-mark{margin:0 auto 25px;width:46px;height:46px;font-size:22px}.login-card .eyebrow{margin-bottom:8px}.login-card h1{font-size:24px;margin:0 0 12px}.login-card>p:not(.eyebrow):not(.login-error){font-size:13px;line-height:1.8;color:var(--muted);margin:0 0 24px}.sign-in-button{display:block;padding:13px;background:#5269cb;color:white;border-radius:7px;text-decoration:none;font-size:13px;font-weight:600}.login-error{color:#ac433b;font-size:12px;margin:15px 0 0}.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}
@media(max-width:1000px){.toolbar{flex-wrap:wrap;align-items:center}.search-field{max-width:none;flex-basis:100%}.sort-label{margin-left:0}.reader{grid-template-columns:320px minmax(0,1fr)}.detail-panel{padding:0 27px 50px}}
@media(max-width:700px){.topbar{height:62px;padding:0 16px}.topbar-meta{gap:10px;font-size:10px}.brand small{display:none}.shell{padding:18px 12px 28px}.toolbar{gap:8px}.filter-label{flex:1;min-width:calc(50% - 5px)}.filter-label select{width:100%;min-width:0}.sort-label{margin:0}.reader{display:flex;flex-direction:column;min-height:calc(100vh - 210px)}.list-panel{border-right:0;border-bottom:1px solid var(--line)}.list-heading{height:68px;padding:12px 15px 10px}.list-heading h1{font-size:19px}.article-list{max-height:36vh;overflow:auto}.article-card{padding:12px 15px}.detail-panel{max-height:none;min-height:370px;padding:0 18px 38px}.article-header{padding:27px 0 20px}.article-header h1{font-size:22px}.provenance{gap:12px 18px}.prose{font-size:14px}.empty-detail{min-height:300px}.login-card{padding:32px 23px}}
.card-badges{display:flex;gap:5px;margin-top:8px}.article-badge{border:1px solid #e5e8f2;background:#fafbff;border-radius:4px;color:#606b86;padding:2px 6px;font-size:9px;line-height:1.4}
.source-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px 18px}.markdown-download{font-size:11px;color:#68717f;text-decoration:none}.markdown-download:hover{text-decoration:underline}
.read-toggle{border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--blue);font:inherit;font-size:11px;padding:8px 12px;cursor:pointer}.read-toggle:hover{background:var(--blue-soft)}.read-toggle:focus-visible,.article-card:focus-visible{outline:2px solid var(--blue);outline-offset:-2px}.detail-panel{scroll-margin-top:76px}.toolbar>.search-field{min-width:180px}
.summary-panel{margin:22px 0 20px;padding:18px 20px;background:#f7f8fc;border:1px solid #e8eaf3;border-radius:9px}.summary-panel h2{font-size:15px;margin:0 0 4px;color:#30394b}.content-caption{font-size:10px;line-height:1.6;color:var(--muted);margin:0 0 10px}.summary-prose{padding-top:2px;font-size:13px;line-height:1.85}.summary-prose p:last-child,.detail-pane .prose p:last-child{margin-bottom:0}.detail-tabs{display:flex;gap:5px;border-bottom:1px solid var(--line);margin-top:25px}.detail-tabs [role=tab]{appearance:none;border:0;border-bottom:2px solid transparent;padding:11px 16px;background:transparent;color:#6b7481;font:inherit;font-size:12px;cursor:pointer}.detail-tabs [role=tab][aria-selected=true]{border-color:var(--blue);color:var(--blue);font-weight:700}.detail-tabs [role=tab]:focus-visible,.recovery-button:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.detail-pane{min-height:160px;padding-top:13px}.content-difference{padding:10px 12px;background:#fff9f0;border-left:3px solid #db9b48;color:#815b2a;font-size:11px;line-height:1.65}.detail-error-state{margin:28px 0;padding:8px 0 24px;border-bottom:1px solid var(--line)}.detail-error{margin:0 auto 15px;max-width:580px}.detail-recovery-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.recovery-button{border:1px solid #d9deea;border-radius:6px;background:#fff;color:var(--blue);font:inherit;font-size:11px;font-weight:600;padding:9px 13px;cursor:pointer;text-decoration:none}.recovery-button:hover{background:var(--blue-soft)}
@media(max-width:700px){.summary-panel{margin:17px 0;padding:15px}.detail-tabs [role=tab]{flex:1;padding:12px 8px}.detail-pane{padding-top:10px}.detail-error-state{margin-top:20px}}
/* PCではreaderをviewport内に固定し、3つの閲覧ペインだけを独立してスクロールする。 */
@media(min-width:701px){
  body{height:100dvh;overflow:hidden;display:flex;flex-direction:column}
  .topbar{position:relative;top:auto;flex:none}
  .shell{height:calc(100dvh - 72px);width:100%;display:flex;flex-direction:column;min-height:0;padding:17px 24px 20px}
  .toolbar{flex:none;flex-wrap:wrap;row-gap:9px;margin-bottom:12px}
  .reader{flex:1;min-height:0;height:auto;grid-template-columns:minmax(190px,230px) minmax(300px,360px) minmax(0,1fr)}
  .site-panel,.list-panel,.detail-panel{min-height:0;max-height:none;overflow-y:auto;overscroll-behavior:contain}
  .site-panel,.list-panel{border-right:1px solid var(--line)}
  .site-panel{min-width:0;background:#fbfcfe}
  .list-heading{position:sticky;top:0;z-index:2;background:var(--paper)}
  .site-heading{height:86px}
  .site-list{padding:8px 10px 14px}
  .site-folder{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;border:0;border-radius:7px;background:transparent;color:#4f5967;text-align:left;padding:10px 11px;font:inherit;font-size:12px;cursor:pointer}
  .site-folder:hover{background:#f0f2f8}
  .site-folder.is-selected{background:var(--blue-soft);color:#394ca7;font-weight:700}
  .site-folder-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .site-folder-count{flex:none;min-width:22px;border-radius:12px;background:#eef0f4;color:#717987;text-align:center;padding:2px 6px;font-size:10px}
  .site-folder.is-selected .site-folder-count{background:#dfe4ff;color:#4359bd}
  .article-list{max-height:none;overflow:visible}
  .detail-panel{padding:0 30px 48px;scroll-margin-top:0}
  .mobile-back{display:none}
}
.read-state-status{flex:none;font-size:10px;color:var(--muted);padding-bottom:5px}
.read-state-status.is-ready{color:#348661}
.read-state-status.is-error{color:#ac433b}
.read-dot.is-unknown{display:grid;place-items:center;width:18px;height:18px;background:#f1f2f5;color:#727b89;font-size:9px;font-weight:700}
.notice{display:flex;align-items:center;justify-content:space-between;gap:12px}
.notice[hidden]{display:none}
.notice-action{flex:none;border:1px solid #ead2bd;border-radius:5px;background:#fff;color:#875d3b;font:inherit;font-size:11px;padding:6px 10px;cursor:pointer}
.notice-action:hover{background:#fff1e4}
.read-toggle:disabled{opacity:.65;cursor:wait}
@media(max-width:700px){
  body{height:auto;min-height:100vh;overflow:auto;display:block}
  .topbar{position:sticky;top:0}
  .shell{height:auto;min-height:0;display:block;padding:14px 12px 26px}
  .toolbar{margin-bottom:13px}
  .reader{display:flex;flex-direction:column;min-height:0;overflow:visible}
  .site-panel,.list-panel,.detail-panel{max-height:none;min-height:0;overflow:visible;border-right:0}
  .site-panel{border-bottom:1px solid var(--line);background:#fbfcfe}
  #site-panel,#list-panel{scroll-margin-top:66px}
  .site-heading{height:64px;padding:12px 15px 10px}
  .site-list{max-height:25vh;overflow-y:auto;padding:4px 8px 10px;overscroll-behavior:contain}
  .site-folder{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;border:0;border-radius:7px;background:transparent;color:#4f5967;text-align:left;padding:10px 11px;font:inherit;font-size:12px;cursor:pointer}
  .site-folder.is-selected{background:var(--blue-soft);color:#394ca7;font-weight:700}
  .site-folder-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .site-folder-count{flex:none;min-width:22px;border-radius:12px;background:#eef0f4;color:#717987;text-align:center;padding:2px 6px;font-size:10px}
  .list-panel{border-bottom:1px solid var(--line)}
  .list-heading{position:sticky;top:62px;z-index:2;background:var(--paper);height:68px;padding:10px 14px}
  .list-heading h1{font-size:17px;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .list-heading .eyebrow{display:none}
  .article-list{max-height:36vh;overflow-y:auto;overscroll-behavior:contain}
  .detail-panel{padding:0 17px 34px;scroll-margin-top:66px}
  .mobile-back{display:block;margin:10px 0 0;border:0;background:transparent;color:var(--blue);font:inherit;font-size:12px;padding:8px 2px;cursor:pointer}
  #detail-back{position:sticky;top:62px;z-index:2;background:var(--paper)}
  .read-state-status{width:100%;padding:0 2px}
}