/* A restrained research index: the search console and source states carry the hierarchy. */
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/* Search, refine, select and export: compact reference-list workspace. */
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/* Literature readability candidate, 2026-10-15. Scope: this page only. */
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  --lit-control-line: #7188a3;
  --lit-muted: #b9c9dc;
  --lit-link: #a8ccff;
  --lit-action: #97c3fc;
  --lit-action-ink: #11243c;
  --lit-selected: #253f5e;
  --lit-source: #99ddc8;
}
.lit-heading { margin-bottom: 18px; }
.lit-heading h1 { font-size: clamp(29px, 3vw, 36px); letter-spacing: -.025em; }
.lit-heading p { font-size: 16px; line-height: 1.65; }
.lit-heading .lit-kicker { font-size: 12px; letter-spacing: .12em; }
.lit-heading > a { font-size: 15px; font-weight: 550; }
.lit-search-panel { padding: 16px 24px 0; border-top-color: var(--lit-action); border-radius: 6px; }
.lit-search-mode { margin-bottom: 10px; }
.lit-search-mode label,
.lit-search-entry label,
.lit-filters label { font-size: 15px; font-weight: 600; color: var(--ink); }
.lit-search-mode > span { font-size: 13px; color: var(--lit-muted); }
.lit-search-entry .lit-field-label { flex-basis: 200px; }
.lit-shell button,
.lit-shell select,
.lit-shell input,
.lit-export-dialog input { font-size: 15px; border-color: var(--lit-control-line); }
.lit-shell select { min-height: 46px; padding: 10px 12px; }
.lit-search-entry input { font-size: 17px; min-height: 50px; }
.lit-search-entry select,
.lit-search-entry button { font-size: 16px; min-height: 50px; }
.lit-shell input::placeholder { color: var(--quiet); opacity: 1; }
.lit-shell .lit-search-hint { font-size: 14px; line-height: 1.65; margin-top: 7px; }
.lit-query-help { font-size: 14px; }
.lit-query-help summary { min-height: 40px; font-weight: 550; }
.lit-task-bar { gap: 8px; padding-bottom: 10px; }
.lit-task-bar button,
.lit-task-bar a { font-size: 14px; min-height: 44px; }
.lit-task-bar button { padding-inline: 14px; }
.lit-task-bar button[aria-pressed=true] { background: var(--lit-selected); border-color: var(--lit-control-line); color: var(--lit-link); }
.lit-workspace { grid-template-columns: 240px minmax(0, 1fr); gap: 28px; margin-top: 24px; }
.lit-refine { padding-right: 20px; }
.lit-refine > details > summary { font-size: 18px; margin-bottom: 10px; }
.lit-refine .lit-filters { gap: 16px; }
.lit-refine .lit-filters select { font-size: 15px; }
.lit-advanced > summary { font-size: 15px; }
.lit-filter-note { font-size: 13px; line-height: 1.7; }
.lit-active-filters button { font-size: 14px; min-height: 40px; }
.lit-result-line { gap: 12px; margin-bottom: 14px; }
.lit-result-line > p { font-size: 18px; font-weight: 650; }
.lit-result-line > label { font-size: 14px; color: var(--ink); }
.lit-result-line select { max-width: 235px; font-size: 15px; }
.lit-selection-toolbar { gap: 8px; padding-block: 12px; }
.lit-selection-toolbar button { font-size: 14px; min-height: 44px; padding: 9px 12px; }
.lit-select-page { font-size: 14px; min-height: 44px; }
.lit-selection-note { font-size: 13px; line-height: 1.65; margin-block: 10px 5px; }
.lit-shell input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--lit-action); }
.lit-shell button:disabled { opacity: 1; color: var(--lit-muted); background: var(--soft); border-color: var(--lit-line); }
.lit-shell button:disabled:hover { border-color: var(--lit-line); }
.lit-shell .lit-primary,
.lit-search button[type=submit],
.lit-pagination [aria-current=page] { color: var(--lit-action-ink); background: var(--lit-action); border-color: var(--lit-action); }
.lit-shell .lit-primary:disabled { color: var(--lit-muted); background: var(--soft); border-color: var(--lit-line); }
.lit-shell :focus-visible { outline: 3px solid var(--lit-link); outline-offset: 3px; }
.lit-record { grid-template-columns: 36px minmax(0, 1fr); gap: 14px; padding-block: 20px; }
.lit-record-select { gap: 10px; font-size: 13px; color: var(--lit-muted); }
.lit-record h2 { font-size: 20px; font-weight: 650; line-height: 1.5; letter-spacing: 0; margin-bottom: 7px; }
.lit-record h2 a { color: var(--lit-link); }
.lit-record h2 a:hover { color: var(--lit-link); text-decoration-thickness: 2px; }
.lit-author-list { font-size: 15.5px; color: var(--ink); line-height: 1.65; }
.lit-author-list > summary { min-height: 36px; line-height: 1.65; font-weight: 400; }
.lit-author-list p { padding: 10px 12px; }
.lit-record .lit-journal { font-size: 15px; font-weight: 600; color: var(--ink); }
.lit-record-state { font-size: 14px; line-height: 1.65; color: var(--lit-muted); gap: 10px 16px; }
.lit-source-state { color: var(--lit-source); font-weight: 650; }
.lit-doi { font-size: 13.5px; line-height: 1.7; }
.lit-doi a { color: var(--lit-muted); }
.lit-doi a:hover { color: var(--lit-link); text-decoration: underline; }
.lit-record-expand { font-size: 15px; margin-top: 4px; }
.lit-record-expand > summary { min-height: 44px; font-weight: 550; }
.lit-record-detail-body { padding: 16px 18px; }
.lit-record .lit-type,
.lit-record .lit-correspondence-missing,
.lit-correspondence,
.lit-correspondence-label,
.lit-correspondence-preview,
.lit-correspondence li p,
.lit-record-details,
.lit-record-details li p,
.lit-fact-count,
.lit-clue-note { font-size: 14px; }
.lit-correspondence-names { font-size: 15px; }
.lit-correspondence .lit-correspondence-source,
.lit-provenance { font-size: 13px; }
.lit-provenance code,
.lit-candidate-locator code { font-size: 12.5px; line-height: 1.7; }
.lit-record-details summary,
.lit-provenance summary { min-height: 44px; }
.lit-tags span { font-size: 13px; padding: 4px 8px; }
.lit-sources { font-size: 14px; gap: 8px 18px; padding-top: 12px; }
.lit-sources > a { min-height: 44px; }
.lit-pagination button { min-width: 44px; font-size: 15px; }
.lit-empty { font-size: 16px; }
.lit-selected-view-bar { padding: 16px 18px; background: var(--lit-selected); }
.lit-selected-view-bar strong { font-size: 18px; }
.lit-selected-view-bar p { font-size: 14px; }
.lit-export-dialog { width: min(860px, calc(100vw - 36px)); font-size: 15px; }
.lit-export-heading h2 { font-size: 24px; }
.lit-export-dialog > p,
.lit-export-dialog label,
.lit-export-dialog #lit-style-source,
.lit-export-warnings { font-size: 14px; line-height: 1.7; }
.lit-export-dialog label { font-weight: 550; }
.lit-export-dialog select,
.lit-export-dialog input,
.lit-export-dialog button { font-size: 15px; min-height: 46px; }
.lit-export-dialog pre { font-size: 13.5px; line-height: 1.75; }
.lit-export-html { font-size: 15px; line-height: 1.75; }
.lit-style-attribution { font-size: 13px; }
.lit-data-notes,
.lit-secondary-counts,
.lit-updated,
.lit-coverage,
.lit-scope { font-size: 14px; }
.lit-stats dt { font-size: 14px; }
.lit-stats dd { font-size: 26px; }
.lit-message,
.lit-query-error { font-size: 15px; }
@media(max-width: 1100px) {
  .lit-workspace { grid-template-columns: 220px minmax(0, 1fr); gap: 22px; }
  .lit-refine { padding-right: 16px; }
  .lit-result-line > p { flex-basis: 100%; }
  .lit-search-entry .lit-field-label { flex-basis: 190px; }
  .lit-search-entry .lit-query-label { flex-basis: calc(100% - 210px); }
}
@media(max-width: 700px) {
  .lit-shell { font-size: 16px; padding-block: 24px 48px; }
  .lit-heading h1 { font-size: 29px; }
  .lit-heading p { font-size: 16px; }
  .lit-search-panel { padding: 15px 14px 0; }
  .lit-search-mode > span { font-size: 13px; }
  .lit-search-mode label { font-size: 15px; }
  .lit-search-entry .lit-field-label { flex-basis: 100%; }
  .lit-search-entry .lit-query-label { flex-basis: 100%; }
  .lit-task-bar button,
  .lit-task-bar a { font-size: 14px; }
  .lit-task-bar button { padding-inline: 10px; }
  .lit-workspace { display: block; margin-top: 20px; }
  .lit-refine { padding-right: 0; }
  .lit-refine .lit-filters { grid-template-columns: minmax(0, 1fr); }
  .lit-filter-note { font-size: 13px; }
  .lit-result-line { gap: 10px; }
  .lit-result-line > p { font-size: 17px; }
  .lit-result-line > label { font-size: 14px; }
  .lit-result-line select { max-width: calc(100% - 50px); }
  .lit-selection-toolbar { gap: 7px; }
  .lit-selection-toolbar button { font-size: 14px; }
  .lit-select-page { font-size: 14px; }
  .lit-record { grid-template-columns: 25px minmax(0, 1fr); gap: 11px; padding-block: 18px; }
  .lit-record h2 { font-size: 18px; line-height: 1.5; }
  .lit-author-list { font-size: 15px; }
  .lit-record .lit-journal { font-size: 15px; }
  .lit-record-state { font-size: 14px; }
  .lit-doi { font-size: 13.5px; }
  .lit-record-expand { font-size: 15px; }
  .lit-record-detail-body { padding: 12px; }
  .lit-export-dialog { padding: 18px; width: calc(100vw - 24px); }
  .lit-export-heading h2 { font-size: 22px; }
  .lit-selected-view-bar strong { font-size: 17px; }
}

/* Optional Chinese reference titles: retain the accepted original-title typography. */
.lit-record .lit-translated-title { font-size: 18px; line-height: 1.65; color: var(--ink); margin: 4px 0; overflow-wrap: anywhere; }
.lit-record .lit-translation-label { font-size: 14px; line-height: 1.65; color: var(--lit-muted); margin: 0 0 7px; }
.lit-translation-label a { color: var(--lit-link); }
.lit-translation-details { font-size: 14px; line-height: 1.7; margin-top: 12px; }
.lit-translation-details > summary { min-height: 44px; font-weight: 550; }
.lit-translation-details code { display: block; font-size: 12.5px; overflow-wrap: anywhere; }
.lit-translation-feedback { display: inline-flex; align-items: center; min-height: 44px; }
.lit-translation-notice { font-size: 14px; line-height: 1.65; margin-block: 8px; }
.lit-translation-notice p { margin-block: 4px; }
.lit-translation-notice button { min-height: 44px; font-size: 14px; }
@media(max-width: 700px) { .lit-record .lit-translated-title { font-size: 16px; } }

/* Honest loading states. No animated shimmer or artificial search percentages. */
.lit-static-mode,.lit-search-feedback{border:1px solid var(--lit-line);border-left:3px solid var(--lit-action);border-radius:10px;padding:15px 18px;margin:0 0 18px;background:var(--soft,#edf4f4);overflow-wrap:anywhere}
.lit-static-mode strong,.lit-search-feedback strong{display:block;font-size:16px;line-height:1.6;color:var(--lit-ink)}
.lit-static-mode p,.lit-search-feedback p{font-size:14px;line-height:1.7;margin:7px 0;color:var(--lit-muted)}
.lit-static-mode .lit-fast-search{display:inline-flex;align-items:center;min-height:44px;margin:4px 0;padding:8px 14px;border-radius:7px;background:var(--lit-action);color:var(--lit-action-ink);font-weight:650;text-decoration:none}
.lit-static-mode progress{display:block;width:100%;height:9px;accent-color:var(--lit-action)}
.lit-static-mode progress[hidden]{display:none}
.lit-search-feedback button{min-height:44px;margin-top:3px;font-size:14px}
.lit-search-skeleton{display:grid;gap:12px;margin-top:16px}
.lit-search-skeleton[hidden]{display:none}
.lit-search-skeleton>div{padding:14px 0;border-top:1px solid var(--lit-line)}
.lit-search-skeleton span{display:block;height:9px;background:var(--lit-line);border-radius:3px;width:90%;margin:8px 0}
.lit-search-skeleton span:nth-child(2){width:68%}.lit-search-skeleton span:nth-child(3){width:42%}
.lit-results-pending{opacity:.7}
.lit-load-cancelled{border-left:3px solid var(--lit-line);padding:10px 13px;background:var(--soft,#edf4f4);color:var(--lit-muted)}
@media(max-width:700px){.lit-static-mode,.lit-search-feedback{padding:12px 14px}.lit-search-feedback strong{font-size:16px}.lit-static-mode .lit-fast-search{width:100%;justify-content:center;box-sizing:border-box}}
@media(prefers-reduced-motion:reduce){.lit-search-feedback,.lit-search-skeleton,.lit-static-mode{animation:none!important;transition:none!important}}