:root { --branch-line: #dce1d6; }
.site-header { max-width: 1600px; padding-inline: 40px; }
.workspace { max-width: 1600px; grid-template-columns: 300px minmax(0, 1fr); gap: 40px; padding-inline: 40px; }
.sidebar { top: 18px; padding-top: 30px; min-height: 0; height: calc(100vh - 130px); }
.shelf-label { align-items: center; padding: 0 9px 16px; }
#collapse-tree { background: transparent; border: 0; font-size: 10px; color: var(--muted); padding: 3px; }
#collapse-tree:hover { color: var(--green); }
#mobile-directory { display: none; }
.category-list { display: block; overflow: auto; flex: 1; min-height: 0; padding-right: 5px; scrollbar-width: thin; scrollbar-color: #d7ddcf transparent; }
.tree-root, .tree-children { list-style: none; padding: 0; margin: 0; }
.tree-item { margin: 3px 0; }
.tree-row { display: flex; align-items: flex-start; }
.tree-toggle { width: 22px; flex-shrink: 0; margin-top: 10px; padding: 0; height: 24px; border: 0; background: transparent; color: #717b68; font: 18px/1 var(--sans); transition: transform 120ms; }
.tree-toggle[aria-expanded=true] { transform: rotate(90deg); }
.tree-toggle:hover { color: var(--green); }
.tree-link { display: flex; align-items: baseline; min-width: 0; flex: 1; gap: 8px; border-radius: 5px; padding: 11px 9px; font-size: 12px; line-height: 1.65; }
.tree-link:hover { background: #efeee8; }
.tree-link[aria-current=page] { background: var(--pale); color: #294335; font-weight: 600; }
.tree-link.is-parent { color: var(--green); font-weight: 600; }
.tree-name { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.tree-number { font: 10px/1.65 var(--mono); color: var(--muted); }
.tree-count { font: 10px/1.65 var(--mono); color: var(--muted); margin-left: auto; flex-shrink: 0; }
.directory-counts { display: inline-flex; align-items: baseline; gap: 6px; flex-shrink: 0; white-space: nowrap; }
.today-count { display: inline-block; font: 500 10px/1.5 var(--mono); color: #287046; background: #eaf3e9; border-radius: 3px; padding: 1px 4px; }
.tree-all { margin: 0 0 12px 22px; font-size: 12px; padding-block: 12px; }
.tree-children { border-left: 1px solid var(--branch-line); margin: 0 0 10px 11px; padding-left: 10px; }
.tree-children .tree-link { font-size: 11.5px; padding-block: 9px; }
.tree-children .tree-toggle { margin-top: 8px; }
.tree-children .tree-children { margin-left: 11px; padding-left: 5px; }
.tree-children .tree-children .tree-link { font-size: 11px; font-weight: 400; }
.tree-children .tree-children .tree-link[aria-current=page] { font-weight: 600; }
.tree-leaf-mark { flex: 0 0 17px; color: #a3ad98; margin-top: 7px; text-align: center; }
.sidebar-bottom { padding: 18px 12px 4px 31px; margin-top: 12px; border-top: 1px solid var(--line); }
.sidebar-bottom .shelf-drawing, .sidebar-bottom p { display: none; }
main { padding-top: 29px; }
.breadcrumbs { display: flex; flex-wrap: wrap; align-items: baseline; gap: 5px 8px; font-size: 11px; line-height: 1.85; color: #697163; margin-bottom: 27px; }
.breadcrumbs a { overflow-wrap: anywhere; }
.breadcrumbs a:hover { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.breadcrumbs a[aria-current=page] { color: var(--ink); }
.breadcrumb-separator { color: #a6ad9d; }
.intro { padding-bottom: 22px; align-items: flex-start; gap: 24px; }
.intro > div:first-child { min-width: 0; }
.eyebrow { margin-bottom: 13px; font-size: 10px; letter-spacing: .08em; }
h1 { font-size: clamp(27px, 2.55vw, 37px); line-height: 1.4; overflow-wrap: anywhere; }
.intro-description { font-size: 13px; line-height: 1.9; color: #656d60; max-width: 58em; }
.collection-counter { align-self: flex-end; padding-bottom: 6px; }
.collection-counter > span:first-child { font-size: 51px; }
.collection-counter > span:last-child { font-size: 8px; }
.scope-questions { display: grid; grid-template-columns: 76px 1fr; gap: 12px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 13px 0; margin-bottom: 23px; font-size: 11px; }
.questions-label { color: var(--green); padding-top: 1px; }
.scope-questions ul { display: flex; gap: 6px 24px; flex-wrap: wrap; margin: 0; padding: 0; list-style: none; color: #656d60; }
.scope-questions li:before { content: '·'; color: #8b9781; margin-right: 7px; }
.controls { margin-bottom: 0; }
.directory-panel { margin: 28px 0 36px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 15px; }
.section-heading h2 { font-size: 15px; font-weight: 600; margin: 0; letter-spacing: .02em; }
.section-heading > span { font-size: 10px; color: var(--muted); }
.directory-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.directory-card { padding: 21px; border: 1px solid #eaeaea; border-radius: 6px; background: #fff; min-width: 0; }
.directory-name { margin: 0; font-size: 15px; line-height: 1.65; font-weight: 600; }
.directory-heading { display: grid; grid-template-columns: auto minmax(0, 1fr) 14px; align-items: baseline; gap: 10px; }
.directory-heading:hover { color: var(--green); }
.directory-code { font: 10px/1.7 var(--mono); color: #76806d; }
.directory-arrow { font: 15px var(--sans); color: #818d77; }
.directory-description { margin: 12px 0 10px; font-size: 12px; line-height: 1.85; color: #67705f; }
.directory-meta { font: 10px/1.7 var(--sans); color: var(--muted); }
.directory-children { list-style: none; padding: 0 0 0 14px; margin: 15px 0 0; border-left: 1px solid var(--branch-line); }
.directory-children a { display: flex; align-items: baseline; gap: 14px; justify-content: space-between; padding: 6px 0; font-size: 12px; color: #485342; line-height: 1.75; }
.directory-children a:hover { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.directory-child-count { font: 10px var(--mono); color: var(--muted); flex-shrink: 0; }
.directory-cards[data-depth="1"] { grid-template-columns: minmax(0, 1fr); gap: 12px; }
.directory-cards[data-depth="1"] .directory-card { display: grid; grid-template-columns: 1fr 1fr; padding: 21px 24px; gap: 27px; }
.directory-cards[data-depth="1"] .directory-children { margin: 0; align-self: center; padding-left: 24px; }
.directory-cards[data-depth="2"] .directory-heading { grid-template-columns: minmax(0, 1fr) 14px; }
.directory-cards[data-depth="2"] .directory-code { grid-column: 1 / -1; }
.paper-section-heading { border-top: 1px solid #dedfd7; padding-top: 22px; margin-top: 28px; margin-bottom: 0; }
.results-heading { min-height: 44px; }
.paper-topline { margin-bottom: 10px; }
.paper-code { font: 10px var(--mono); color: #707c64; }
.paper-reference { display: inline-flex; align-items: center; gap: 9px; }
.paper-new-label { font-size: 10px; line-height: 1.6; white-space: nowrap; color: #496c7c; background: #edf4f7; border-radius: 3px; padding: 2px 6px; }
.paper-card.is-new-today { border-color: #cbdce2; }
.paper-card.is-new-today:hover { border-color: #9eb9c5; }
.paper-path { display: flex; flex-wrap: wrap; gap: 2px 5px; font-size: 10px; line-height: 1.9; margin: 0 0 13px; color: #66715d; }
.paper-path a { max-width: 100%; overflow-wrap: anywhere; }
.paper-path a:last-child { color: #344b2f; }
.paper-path a:hover { text-decoration: underline; text-underline-offset: 3px; }
.path-separator { color: #a2aa9a; }
.paper-title { font-size: 20px; }
.paper-publication { display: flex; flex-wrap: wrap; gap: 6px; align-items: flex-start; margin: 0 0 15px; }
.venue-badge, .recognition-badge { display: inline-block; max-width: 100%; border-radius: 3px; padding: 3px 7px; font-size: 10px; line-height: 1.6; overflow-wrap: anywhere; }
.venue-badge { background: #f1f0eb; color: #6c7066; }
.venue-badge[data-status="published"] { background: #edf2e9; color: #405637; }
.venue-badge[data-status="workshop"] { background: #edf0f4; color: #566374; }
.venue-badge[data-status="report"] { background: #eff0ee; color: #606c60; }
.recognition-badge { background: #f5edd8; color: #79602d; font-weight: 600; }
.recognition-badge:hover { background: #eee2c0; text-decoration: underline; text-underline-offset: 3px; }
.paper-publication + .paper-summary { margin-bottom: 19px; }
.paper-collected { font-size: 10px; line-height: 1.7; color: var(--muted); white-space: nowrap; }
.paper-collected time { font-variant-numeric: tabular-nums; }
.activity-board { margin: 0 0 20px; border-block: 1px solid #e2e5dd; }
.activity-board > summary { display: flex; align-items: baseline; gap: 12px; padding: 11px 0; cursor: pointer; list-style: none; color: var(--muted); font-size: 10px; }
.activity-board > summary::-webkit-details-marker { display: none; }
.activity-board > summary:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }
.activity-title { flex-shrink: 0; color: #52634b; font-size: 11px; }
.activity-toggle { margin-left: auto; flex-shrink: 0; }
.activity-toggle::before { content: '展开 ＋'; }
.activity-board[open] .activity-toggle::before { content: '收起 −'; }
.activity-body { border-top: 1px solid var(--line); padding: 14px 2px 18px; max-height: 370px; overflow-y: auto; scrollbar-width: thin; }
.activity-note, .activity-empty { margin: 0 0 15px; font-size: 10px; color: var(--muted); line-height: 1.8; }
.activity-day + .activity-day { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 15px; }
.activity-day-heading { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px 16px; margin: 0 0 8px; font-weight: 500; }
.activity-day-heading time { font: 11px var(--mono); color: #405637; }
.activity-day-heading > span { font-size: 10px; color: var(--muted); }
.activity-groups { list-style: none; padding: 0; margin: 0; }
.activity-groups li { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 6px 0; }
.activity-link { min-width: 0; font-size: 11px; color: #55624e; overflow-wrap: anywhere; }
.activity-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.activity-count { flex-shrink: 0; color: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; }
@media (max-width: 560px) {
  .activity-board > summary { gap: 8px; flex-wrap: wrap; position: relative; padding-right: 48px; }
  #activity-summary { flex-basis: 100%; }
  .activity-toggle { position: absolute; right: 0; top: 11px; }
  .activity-groups li { flex-wrap: wrap; gap: 2px 10px; }
  .activity-count { margin-left: auto; }
}
@media (max-width: 1250px) {
  .site-header { padding-inline: 30px; }
  .workspace { padding-inline: 30px; grid-template-columns: 270px minmax(0, 1fr); gap: 28px; }
  .tree-link { font-size: 11.5px; }
  .directory-card { padding: 18px; }
  .directory-cards[data-depth="1"] .directory-card { padding: 19px; gap: 20px; }
  .directory-cards[data-depth="1"] .directory-children { padding-left: 18px; }
  .collection-counter { display: none; }
  .scope-questions { grid-template-columns: 64px 1fr; }
}
@media (max-width: 1050px) {
  .directory-cards[data-depth="0"] { grid-template-columns: minmax(0, 1fr); }
  .directory-cards[data-depth="1"] .directory-card { grid-template-columns: minmax(0, 1fr); gap: 15px; }
  .directory-cards[data-depth="2"] { grid-template-columns: minmax(0, 1fr); }
  .directory-name { font-size: 14px; }
  .scope-questions ul { display: block; }
  .scope-questions li + li { margin-top: 4px; }
}
@media (max-width: 800px) {
  .site-header { padding-inline: 21px; }
  .workspace { display: block; padding-inline: 21px; }
  .sidebar { position: static; height: auto; padding-top: 18px; width: 100%; display: block; }
  .shelf-label, .sidebar-bottom { display: none; }
  #mobile-directory { display: flex; width: 100%; justify-content: space-between; align-items: center; padding: 11px 13px; border: 1px solid #dce1d6; border-radius: 5px; background: #edf0e9; color: var(--green); font-size: 12px; }
  #mobile-directory > span:last-child { font-size: 15px; }
  .category-list { display: none; max-height: 65vh; padding: 13px 7px 13px 0; overflow: auto; border-bottom: 1px solid var(--branch-line); margin-top: 6px; }
  .directory-open .category-list { display: block; }
  .tree-link { font-size: 12px; }
  .tree-children .tree-link { font-size: 12px; }
  .tree-children .tree-children .tree-link { font-size: 11.5px; }
  main { padding-top: 24px; }
  .breadcrumbs { margin-bottom: 20px; font-size: 10px; gap: 4px 6px; }
  h1 { font-size: 28px; }
  .eyebrow { font-size: 9px; margin-bottom: 10px; }
  .intro-description { font-size: 12px; line-height: 1.9; margin-top: 12px; }
  .intro { padding-bottom: 20px; }
  .collection-counter { display: none; }
  .scope-questions { grid-template-columns: 59px 1fr; font-size: 10.5px; padding-block: 12px; margin-bottom: 20px; }
  .directory-panel { margin-top: 23px; margin-bottom: 27px; }
  .section-heading { gap: 10px; }
  .section-heading h2 { font-size: 14px; }
  .section-heading > span { font-size: 9px; }
  .directory-cards { gap: 12px; }
  .directory-card { padding: 18px; }
  .directory-description { font-size: 12px; }
  .paper-section-heading { padding-top: 19px; margin-top: 24px; }
  .paper-title { font-size: 21px; }
  .paper-path { font-size: 10px; }
}
@media (max-width: 360px) {
  .workspace, .site-header { padding-inline: 16px; }
  .directory-heading { gap: 7px; }
  .directory-cards[data-depth="1"] .directory-card { padding: 16px; }
}

mark { background: var(--pale); color: inherit; border-radius: 2px; padding: 0 1px; }
.is-searching .intro-description, .is-searching .collection-counter, .is-searching .activity-board, .is-searching h1 > br, .is-searching h1 > span { display: none; }
.is-searching .intro { padding-bottom: 12px; }
.is-searching h1 { font-size: 24px; }