/* 说明：案例分类入口与右侧宽抽屉，沿用看板暖色和本地 Lucide，所有表面无阴影。 */
.cases-board .case-grid.case-grid--categories { --case-card-min-height:148px; flex:1 0 auto; grid-template-columns:repeat(2,minmax(0,1fr)); grid-template-rows:repeat(2,minmax(var(--case-card-min-height),1fr)); grid-auto-rows:minmax(var(--case-card-min-height),1fr); gap:10px; padding-bottom:14px; }
.cases-board .case-grid.case-grid--six { grid-template-columns:repeat(3,minmax(0,1fr)); }
.cases-board:has(.case-grid--categories) > .module-pagination:empty { display:none; }
.case-category { display:flex; flex-direction:column; gap:8px; min-width:0; min-height:var(--case-card-min-height); padding:14px 16px; border:1px solid #dce6de; border-radius:12px; text-align:left; color:#30473b; background:#fff; cursor:pointer; box-shadow:none; transition:border-color .15s,background-color .15s; }
.case-category:hover { border-color:#7f9f86; }
.case-category--typical { border-color:#dfb2b2; color:#48545d; background:#fff; }
.case-category--typical:hover { border-color:#c67b7b; }
.case-category__heading { display:flex; flex-shrink:0; align-items:center; gap:10px; min-width:0; }
.case-category__icon { display:grid; flex:0 0 30px; place-items:center; width:30px; height:30px; border-radius:8px; background:#edf5ee; color:#4f795d; }
.case-category__icon svg { width:18px; height:18px; }
.case-category--typical .case-category__icon { color:#ba6565; background:transparent; }
.case-category__heading strong { min-width:0; overflow:hidden; color:#344b3d; font-size:15px; font-weight:700; line-height:1.5; text-overflow:ellipsis; white-space:nowrap; }
.case-category--typical .case-category__heading strong { color:#3e4b57; }
.case-category__count { flex-shrink:0; margin-left:auto; color:#788378; font-size:11px; font-variant-numeric:tabular-nums; white-space:nowrap; }
.case-category__count b { color:#4a6c54; font-size:14px; }
.case-category--typical .case-category__count b { color:#596773; }
.case-category__description { display:block; flex-shrink:0; overflow:hidden; color:#7b867e; font-size:12px; line-height:1.5; text-overflow:ellipsis; white-space:nowrap; }
.case-category__preview { display:flex; flex-shrink:0; align-items:center; gap:8px; min-width:0; color:#536459; font-size:12px; line-height:1.5; }
.case-category__preview small { flex-shrink:0; color:#8b948e; font-size:10px; }
.case-category__preview > span { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.case-category__footer { display:flex; flex-shrink:0; align-items:center; gap:8px; min-width:0; margin-top:auto; padding-top:8px; border-top:1px solid #edf0ea; color:#65766a; line-height:1.5; }
.case-category--typical .case-category__footer { border-top-color:#efdddd; }
.case-category__learning { flex-shrink:0; font-size:11px; white-space:nowrap; }
.case-category__learning b { color:#42654c; font-size:13px; font-variant-numeric:tabular-nums; }
.case-category--typical .case-category__learning b { color:#596773; }
.case-category__recent { min-width:0; margin-left:auto; overflow:hidden; color:#929b94; font-size:10px; font-variant-numeric:tabular-nums; text-overflow:ellipsis; white-space:nowrap; }
.case-category__arrow { flex:0 0 14px; width:14px; height:14px; color:#6f8d76; }
.case-category--typical .case-category__arrow { color:#ba6565; }
#caseCount { min-width:0; max-width:260px; overflow:hidden; color:#687586; font-size:12px; text-overflow:ellipsis; white-space:nowrap; }
#caseProgressControl:empty,#caseCount:empty { display:none; }
.drawer-layer[data-mode="case-browser"] { display:flex; justify-content:flex-end; padding:0; }
.drawer-layer[data-mode="case-browser"] .quality-drawer { width:clamp(640px,66vw,1040px); height:100dvh; max-height:none; border-top:0; border-right:0; border-bottom:0; border-radius:18px 0 0 18px; box-shadow:none; }
.drawer-layer[data-mode="case-browser"] .drawer-head { align-items:center; padding:22px 26px; }
.drawer-layer[data-mode="case-browser"] .drawer-head h2 { font-size:21px; line-height:1.5; }
.drawer-layer[data-mode="case-browser"] .drawer-body { padding:0 26px 20px; overscroll-behavior:contain; }
.drawer-layer[data-mode="case-browser"] .drawer-footer { padding:14px 26px; }
.case-category-tabs { position:sticky; top:0; z-index:1; display:flex; flex-wrap:wrap; gap:8px; padding:18px 0 14px; border-bottom:1px solid #e7ebe7; background:#fff; }
.case-category-tab { display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:40px; padding:7px 12px; border:1px solid #e1e7e2; border-radius:8px; background:#fff; color:#59685e; font-size:13px; cursor:pointer; }
.case-category-tab span { font-size:12px; font-variant-numeric:tabular-nums; }
.case-category-tab:hover,.case-category-tab.is-active { border-color:#699276; background:#f0f6ee; color:#335b3f; }
.case-category-tab.is-active { font-weight:700; }
.case-browser__summary { display:flex; flex-wrap:wrap; justify-content:space-between; gap:8px; padding:18px 0; color:#687586; font-size:12px; line-height:1.6; }
.case-browser__summary b { color:#355a40; font-variant-numeric:tabular-nums; }
.case-reading-row { padding:22px 0; border-top:1px solid #e7ebe7; }
.case-reading-row:first-child { border-top:0; padding-top:4px; }
.case-reading-row__heading { display:flex; justify-content:space-between; align-items:flex-start; gap:14px; }
.case-reading-row__heading > div { min-width:0; }
.case-reading-row h3 { margin:0; color:#2e4051; font-size:17px; line-height:1.6; overflow-wrap:anywhere; }
.case-reading-row__record { display:flex; flex-wrap:wrap; align-items:center; gap:6px 10px; margin:6px 0 0; color:#697686; font-size:12px; }
.case-reading-row__record span { overflow-wrap:anywhere; user-select:text; font-variant-numeric:tabular-nums; }
.case-reading-row__record button { min-height:32px; padding:4px 6px; }
.case-reading-row__count { flex-shrink:0; padding-top:5px; color:#6b776f; font-size:12px; line-height:1.6; }
.case-reading-row__count b { color:#44694c; font-variant-numeric:tabular-nums; }
.case-reading-row__summary { display:-webkit-box; margin:12px 0 0; overflow:hidden; color:#647184; font-size:14px; line-height:1.8; -webkit-line-clamp:2; -webkit-box-orient:vertical; }
.case-reading-toggle { display:inline-flex; align-items:center; justify-content:center; gap:6px; min-height:40px; margin:8px 0 0; padding:6px 0; border:0; background:transparent; color:#3f7350; font-size:13px; font-weight:600; cursor:pointer; }
.case-reading-toggle svg { width:16px; height:16px; }
.case-reading-content { padding-top:12px; }
.case-reading-content .detail-section { padding:0 0 14px; border:0; border-radius:0; background:transparent; }
.case-reading-content .detail-section p { color:#46566a; font-size:14px; line-height:1.85; white-space:pre-wrap; overflow-wrap:anywhere; }
.case-reading-content .detail-section > strong { overflow-wrap:anywhere; }
.case-reading-content .detail-section--practice { border-left:3px solid #adc7a8; padding:4px 0 4px 16px; }
.case-reading-content .detail-section--issue { border-left:3px solid #ddc3a6; padding:4px 0 4px 16px; }
.case-reading-content .detail-label { font-size:13px; font-weight:700; }
.case-reading-pagination { justify-content:flex-end; margin-right:0; margin-left:0; }
.case-reading-empty { padding:64px 16px; color:#5b6d60; text-align:center; line-height:2; }
.case-reading-empty small { color:#7a867e; }
.case-category:focus-visible,.case-category-tab:focus-visible,.case-reading-toggle:focus-visible { outline:2px solid #4c7d59; outline-offset:3px; }
.case-category--typical:focus-visible { outline-color:#ba6565; }
.case-reading-content[hidden],.case-reading-row__summary[hidden] { display:none; }
/* 卡片的最低高度覆盖全部内容及底部留白，不能再被外层看板压缩。 */
@media (min-width:821px) and (max-height:879px) {
  .cases-board .case-grid.case-grid--categories { --case-card-min-height:94px; }
  .case-category { gap:5px; padding:8px 12px; }
  .case-category__heading { gap:7px; }
  .case-category__icon { flex-basis:22px; width:22px; height:22px; border-radius:6px; }
  .case-category__icon svg { width:15px; height:15px; }
  .case-category__heading strong { font-size:13px; }
  .case-category__description { display:none; }
  .case-category__preview { gap:6px; font-size:11px; }
  .case-category__footer { padding-top:4px; }
}
@media (max-width:1100px) {
  .cases-board .case-grid.case-grid--categories { --case-card-min-height:160px; flex:0 0 auto; grid-template-columns:repeat(2,minmax(0,1fr)); grid-template-rows:repeat(2,minmax(var(--case-card-min-height),auto)); grid-auto-rows:minmax(var(--case-card-min-height),auto); }
  .cases-board .case-grid.case-grid--six { grid-template-rows:repeat(3,minmax(var(--case-card-min-height),auto)); }
  .case-category { padding:12px; }
  .case-category__heading { gap:7px; }
  .case-category__heading strong { font-size:14px; }
  .case-category__description { display:block; }
}
@media (max-width:760px) {
  .cases-board .case-grid.case-grid--categories { --case-card-min-height:198px; }
  .case-category__heading { display:grid; grid-template-columns:26px minmax(0,1fr); gap:0 7px; }
  .case-category__icon { grid-row:1 / 3; width:26px; height:30px; }
  .case-category__count { grid-column:2; margin-left:0; }
  .case-category__description { display:-webkit-box; line-height:1.5; white-space:normal; -webkit-line-clamp:2; -webkit-box-orient:vertical; }
  .case-category__preview { flex-direction:column; align-items:flex-start; gap:2px; }
  .case-category__preview > span { width:100%; }
  .case-category__footer { display:grid; grid-template-columns:minmax(0,1fr) 14px; gap:2px 4px; }
  .case-category__recent { grid-column:1; grid-row:2; margin-left:0; }
  .case-category__arrow { grid-column:2; grid-row:1 / 3; }
  .drawer-layer[data-mode="case-browser"] .quality-drawer { width:100vw; border:0; border-radius:0; }
  .drawer-layer[data-mode="case-browser"] .drawer-head { padding:16px; }
  .drawer-layer[data-mode="case-browser"] .drawer-head h2 { font-size:18px; }
  .drawer-layer[data-mode="case-browser"] .drawer-body { padding:0 16px 16px; }
  .case-reading-row__heading { flex-direction:column; gap:4px; }
  .case-category-tab { flex:1 0 auto; }
  #caseCount { max-width:100%; }
}
/* 中等宽度需要三行分类卡，恢复正常文档高度，避免外层继续裁掉完整卡片。 */
@media (min-width:821px) and (max-width:1100px) {
  html:has(.case-grid--categories),body:has(.case-grid--categories) { height:auto; overflow:auto; }
  .quality-page:has(.case-grid--categories) { height:auto; min-height:calc(100dvh - 52px); overflow:visible; }
  .quality-page:has(.case-grid--categories) .quality-dashboard { flex:0 0 auto; overflow:visible; align-items:start; }
  .quality-page:has(.case-grid--categories) .quality-dashboard__main { grid-template-rows:auto auto; overflow:visible; }
  .cases-board:has(.case-grid--categories) { height:auto; }
}
/* 较矮窗口保留可读高度，由页面自然滚动，禁止把文字挤出卡片。 */
@media (min-width:1101px) and (max-height:699px) {
  html:has(.case-grid--categories),body:has(.case-grid--categories) { height:auto; overflow:auto; }
  .quality-page:has(.case-grid--categories) { height:656px; min-height:656px; overflow:visible; }
}
@media (prefers-reduced-motion:reduce) { .case-category { transition:none; } }