/* listfilter01：文章列表侧栏筛选。选择器只挂在根 class 下。 */

.listfilter01 {
  color: var(--color-text);
}

.listfilter01__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.listfilter01__group {
  margin: 0;
  padding: 0;
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.listfilter01__legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin: 0;
  padding: var(--space-3) var(--space-4);
  float: none;
  font-weight: 600;
}

.listfilter01 .listfilter-collapsible-legend {
  cursor: pointer;
  user-select: none;
}

.listfilter01 .listfilter-collapsible-legend::after {
  content: "";
  flex: 0 0 auto;
  width: 0.4rem;
  height: 0.4rem;
  margin-left: var(--space-3);
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--t-fast) var(--ease);
}

.listfilter01 .listfilter-collapsible-legend[aria-expanded="true"]::after {
  transform: rotate(45deg);
}

.listfilter01 .listfilter-fieldset--collapsed > :not(legend) {
  display: none;
}

.listfilter01__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  padding: 0 var(--space-4) var(--space-4);
}

.listfilter01__cat-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.listfilter01__cat[data-listfilter-cat-depth="1"] {
  padding-inline-start: var(--space-4);
}

.listfilter01__cat[data-listfilter-cat-depth="2"] {
  padding-inline-start: calc(var(--space-4) * 2);
}

.listfilter01__cat[data-listfilter-cat-depth="3"] {
  padding-inline-start: calc(var(--space-4) * 3);
}

.listfilter01__cat-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-text-muted);
}

.listfilter01__cat-toggle::before {
  content: "";
  width: 0.35rem;
  height: 0.35rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--t-fast) var(--ease);
}

.listfilter01__cat-toggle[aria-expanded="true"]::before {
  transform: rotate(45deg);
}

.listfilter01__cat-toggle--spacer {
  pointer-events: none;
  visibility: hidden;
}

.listfilter01__option {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  color: var(--color-text);
}

.listfilter01__check {
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-brand);
}

.listfilter01__check--sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.listfilter01__swatch {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: var(--line) solid var(--color-border);
}

.listfilter01 .listfilter-color-option--active .listfilter01__swatch {
  outline: 2px solid var(--color-brand);
  outline-offset: 2px;
}

.listfilter01__price {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: var(--space-3);
  margin: 0;
  padding: 0 var(--space-4) var(--space-4);
}

.listfilter01__price-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  color: var(--color-text-muted);
}

.listfilter01__price-field input {
  width: 6.5rem;
  padding: var(--space-2) var(--space-3);
  border: var(--line) solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font: inherit;
}

.listfilter01__price-sep {
  color: var(--color-text-muted);
  padding-bottom: var(--space-2);
}

.listfilter01__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.listfilter01__apply {
  display: inline-flex;
  align-items: center;
  padding: var(--btn-pad);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-radius: var(--btn-radius);
}

.listfilter01__apply:hover,
.listfilter01__apply:focus-visible {
  opacity: 0.88;
}

.listfilter01__clear {
  display: inline-flex;
  align-items: center;
  padding: var(--btn-pad);
  border: var(--line) solid var(--color-border);
  border-radius: var(--btn-radius);
  color: var(--color-text-muted);
}

.listfilter01__clear:hover,
.listfilter01__clear:focus-visible {
  color: var(--color-text);
  border-color: var(--color-text);
}