/* 筛选侧栏：桌面分类纵列，窄屏分类横向滚动；所有目录共用。 */
.filter-layout { display: grid; grid-template-columns: 205px minmax(0, 1fr); gap: 32px; align-items: start; min-width: 0; }
.filter-layout__content { min-width: 0; }
.filter-panel { display: flex; flex-direction: column; gap: 10px; min-width: 0; margin: 0; padding: 0 22px 0 0; border: 0; border-right: 1px solid var(--color-border); position: sticky; top: calc(var(--navbar-height) + 24px); }
.filter-panel[hidden], .filter-layout [hidden] { display: none !important; }
.filter-panel .filter-panel__categories { display: flex; flex-direction: column; gap: 8px; min-width: 0; max-width: 100%; padding: 0; margin: 0 0 16px; border: 0; background: none; box-shadow: none; overflow: visible; }
.filter-panel__categories label { position: relative; display: block; cursor: pointer; min-width: 0; }
.filter-panel__categories input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.filter-panel .filter-panel__categories > button, .filter-panel__categories label > span { display: flex; justify-content: space-between; align-items: center; gap: 12px; width: 100%; min-height: 48px; padding: 12px 16px; border: 0; border-radius: 2px; background: var(--color-white, #fff); color: var(--color-text); font: 600 16px/1.5 var(--font-body); text-align: left; letter-spacing: 0; white-space: normal; box-shadow: none; transform: none; }
.filter-panel__categories b { font: inherit; }
.filter-panel .filter-panel__categories .tab-btn-label { flex: 1; text-align: left; }
.filter-panel .filter-panel__categories .tab-btn-icon { display: none; }
.filter-panel .filter-panel__categories .tab-btn-count { padding: 0; border: 0; border-radius: 0; background: none; color: inherit; }
.filter-panel__categories small, .filter-panel__categories .tab-btn-count, .filter-panel__categories .play-filter-count { flex: none; font-size: 13px; font-weight: 400; color: inherit; background: none; }
.filter-panel .filter-panel__categories > button::after { display: none; }
.filter-panel .filter-panel__categories > button[aria-selected="true"], .filter-panel .filter-panel__categories > button[aria-pressed="true"], .filter-panel__categories input:checked + span { background: var(--color-surface-deep); color: #fff; box-shadow: inset 3px 0 var(--color-accent); }
.filter-panel .filter-panel__categories > button:hover, .filter-panel__categories label:hover > span { box-shadow: inset 3px 0 var(--color-accent); }
.filter-panel .filter-panel__categories > button:disabled { cursor: wait; opacity: .6; }
.filter-panel__categories input:focus-visible + span { outline: 3px solid var(--color-accent); outline-offset: 2px; }
.filter-panel__field { display: grid; gap: 6px; min-width: 0; color: var(--color-text-secondary); font-size: 13px; }
.filter-panel__control { display: flex; align-items: center; gap: 10px; min-width: 0; border: 1px solid var(--color-border); border-radius: var(--border-radius); background: #fff; }
.filter-panel__control:focus-within { border-color: var(--color-accent); outline: 3px solid var(--color-accent); outline-offset: 2px; }
/* 焦点轮廓由包含图标的完整控件承载，避免内部输入框重复绘制。 */
.filter-panel__control input:focus, .filter-panel__control select:focus { outline: none; }
.filter-panel__control input, .filter-panel__control select { width: 100%; min-width: 0; max-width: 100%; min-height: 48px; padding: 10px; border: 0; border-radius: inherit; background: transparent; color: var(--color-text); font: 14px/1.5 var(--font-body); }
.filter-panel__search { padding-left: 10px; gap: 0; }
.filter-panel__search svg { width: 20px; height: 20px; flex: none; }
.filter-panel .filter-panel__reset { width: 100%; min-height: 44px; padding: 10px; margin: 0; font-size: 14px; }
.filter-panel__sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 1100px) {
  .filter-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .filter-panel { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-right: 0; padding: 0; }
  .filter-panel .filter-panel__categories { grid-column: 1 / -1; flex-direction: row; overflow-x: auto; padding: 3px 3px 8px; margin: 0; }
  .filter-panel__categories > label, .filter-panel .filter-panel__categories > button { flex: 0 0 auto; width: auto; }
  .filter-panel .filter-panel__categories > button, .filter-panel__categories label > span { white-space: nowrap; font-size: 14px; }
}
@media (max-width: 480px) {
  .filter-panel { grid-template-columns: minmax(0, 1fr); }
}