/* filter_panel — 列表筛选器（标签 + chips + 展开/收起） */
.filters {
  margin-bottom: 16px;
  padding: 4px 16px;
  background: var(--c-surface, #fff);
  border: 1px solid var(--c-border, #e8eaed);
  border-radius: var(--radius-lg, 12px);
}

.bili-filter[data-filter-collapse] {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  grid-template-rows: auto;
  align-items: start;
  gap: 0 10px;
  padding: 12px 0;
  margin: 0;
  border: 0;
  border-bottom: 1px solid var(--c-border, #f1f2f3);
  background: transparent;
  box-shadow: none;
}

.bili-filter[data-filter-collapse]:last-child {
  border-bottom: 0;
}

.bili-filter__label {
  grid-column: 1;
  grid-row: 1;
  align-self: center;
  flex: none;
  min-width: 0;
  margin: 0;
  padding: 0 4px 0 0;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--c-text-muted, #6b7280);
  white-space: nowrap;
}

.bili-filter__chips {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  min-width: 0;
}

.bili-filter.is-collapsed .bili-filter__chips {
  max-height: 36px;
  overflow: hidden;
}

.bili-filter.is-collapsed .bili-filter__chip--soft {
  display: none;
}

.bili-filter__chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: var(--radius-pill, 999px);
  border: 1px solid transparent;
  background: var(--c-surface-2, #f3f4f6);
  color: var(--c-text-muted, #6b7280);
  font-size: 13px;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.bili-filter__chip:hover {
  color: var(--c-accent);
  background: var(--c-accent-soft);
}

.bili-filter__chip:focus-visible {
  outline: 2px solid var(--c-link, var(--c-accent));
  outline-offset: 2px;
}

.bili-filter__chip.on {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
  color: var(--c-accent);
  font-weight: 600;
}

.bili-filter__chip--soft {
  color: var(--c-text-muted, #6b7280);
  background: transparent;
  border: 1px dashed var(--c-border, #d1d5db);
}

.bili-filter__chip--soft:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  background: var(--c-accent-soft);
}

.bili-filter__more {
  grid-column: 3;
  grid-row: 1;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex: none;
  min-height: 32px;
  margin: 0;
  padding: 0 10px;
  border: 0;
  border-radius: var(--radius-pill, 999px);
  background: transparent;
  color: var(--c-accent);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.2s ease, color 0.2s ease;
}

.bili-filter__more:hover {
  background: var(--c-accent-soft);
}

.bili-filter__more:focus-visible {
  outline: 2px solid var(--c-link, var(--c-accent));
  outline-offset: 2px;
}

.bili-filter__more[hidden] {
  display: none !important;
}

.bili-filter__more-ico {
  flex: none;
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

.bili-filter__more[aria-expanded="true"] .bili-filter__more-ico {
  transform: rotate(180deg);
}

.bili-filter-panel__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  min-height: 44px;
  margin-top: 4px;
  padding: 0 14px;
  border: 0;
  border-radius: var(--radius-pill, 999px);
  background: var(--c-surface-2, #f3f4f6);
  color: var(--c-text, #1e293b);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.2s ease, color 0.2s ease;
}

.bili-filter-panel__toggle:hover {
  background: var(--c-accent-soft);
  color: var(--c-accent);
}

.bili-filter-panel__toggle:focus-visible {
  outline: 2px solid var(--c-link, var(--c-accent));
  outline-offset: 2px;
}

.bili-filter-panel__toggle-ico {
  transition: transform 0.2s ease;
}

.bili-filter-panel__toggle[aria-expanded="true"] .bili-filter-panel__toggle-ico {
  transform: rotate(180deg);
}

.bili-filter-panel__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--radius-pill, 999px);
  background: var(--c-accent);
  color: var(--c-accent-ink, #fff);
  font-size: 11px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.bili-filter-panel__advanced {
  display: block;
}

.bili-filter-panel__actions {
  display: flex;
  justify-content: flex-end;
  padding: 8px 0 4px;
}

.bili-filter-panel__reset {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: var(--radius-pill, 999px);
  color: var(--c-text-muted, #6b7280);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}

.bili-filter-panel__reset:hover {
  color: var(--c-accent);
  background: var(--c-accent-soft);
}

@media (max-width: 768px) {
  .filters {
    padding: 0;
    margin-bottom: 10px;
    border: 0;
    border-radius: 8px;
    overflow: hidden;
  }

  .bili-filter[data-filter-collapse] {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 0;
    padding: 10px 12px;
    min-height: 44px;
    align-items: center;
  }

  .bili-filter__label {
    align-self: center;
  }

  .bili-filter__more {
    display: none !important;
  }

  .bili-filter__chips {
    flex-flow: row nowrap;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    scroll-behavior: smooth;
    padding-bottom: 2px;
  }

  .bili-filter__chips::-webkit-scrollbar {
    display: none;
  }

  .bili-filter.is-collapsed .bili-filter__chips {
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
  }

  .bili-filter__chip {
    flex: 0 0 auto;
  }

  .bili-filter-panel__toggle {
    display: flex;
  }

  .bili-filter-panel__advanced {
    display: none;
    padding-top: 2px;
  }

  .bili-filter-panel__advanced.is-open,
  .bili-filter-panel__advanced[data-open="1"] {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bili-filter__chip,
  .bili-filter__more,
  .bili-filter__more-ico,
  .bili-filter-panel__toggle,
  .bili-filter-panel__toggle-ico,
  .bili-filter-panel__reset {
    transition: none;
  }
}