/* ===== 设置面板 ===== */
.settings-section {
  margin-bottom: var(--spacing-xl);
}
.settings-section h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--spacing-xs);
}
.setting-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}
.setting-row label {
  min-width: 120px;
  font-weight: 500;
  font-size: var(--font-size-sm);
}
.setting-row input,
.setting-row select {
  flex: 1;
  min-width: 200px;
}
.setting-row .help-text {
  flex-basis: 100%;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}
.setting-row .btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.setting-row .btn-sm:hover {
  background: var(--color-accent-light);
  color: var(--color-accent);
}
.setting-row .btn-sm i {
  margin-right: var(--spacing-xs);
}
.setting-row .btn-sm:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============================================================
   ★★★ 开关（Toggle Switch） ★★★
   ============================================================ */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
  /* 覆盖 .setting-row label 的默认样式 */
  min-width: unset !important;
  margin-bottom: 0 !important;
  font-weight: normal !important;
  font-size: unset !important;
  cursor: pointer;
  vertical-align: middle;
  flex: 0 0 auto !important;
}

/* 隐藏原生 checkbox，但仍可被 JS 读取 */
.toggle-switch input[type="checkbox"] {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
  margin: 0;
  padding: 0;
  pointer-events: none;
  flex: 0 0 auto !important;
  min-width: 0 !important;
}

/* 滑块（轨道） */
.toggle-switch .toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-border);
  border-radius: 999px;
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* 滑块（圆形按钮） */
.toggle-switch .toggle-slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  top: 3px;
  background-color: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  transition: transform var(--transition-fast);
}

/* 选中态 */
.toggle-switch input[type="checkbox"]:checked + .toggle-slider {
  background: var(--color-primary-gradient);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1), 0 0 0 1px var(--color-primary);
}
.toggle-switch input[type="checkbox"]:checked + .toggle-slider::before {
  transform: translateX(20px);
}

/* 悬停态 */
.toggle-switch:hover .toggle-slider {
  filter: brightness(0.97);
}
[data-theme="dark"] .toggle-switch:hover .toggle-slider,
[data-theme="cyberpunk"] .toggle-switch:hover .toggle-slider {
  filter: brightness(1.15);
}

/* 禁用态 */
.toggle-switch input[type="checkbox"]:disabled + .toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}
.toggle-switch input[type="checkbox"]:disabled ~ * {
  cursor: not-allowed;
}

/* 聚焦态（键盘 Tab） */
.toggle-switch input[type="checkbox"]:focus-visible + .toggle-slider {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* 窄屏下让开关独占一行偏右 */
@media (max-width: 480px) {
  .setting-row .toggle-switch {
    margin-left: auto;
  }
}