// 语义搜索 / Chat 共用：查询历史下拉列表视觉
@mixin query-history-dropdown {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  margin: 2px 0 0;
  padding: 4px 0;
  list-style: none;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  max-height: 200px;
  overflow-y: auto;
  z-index: 100;
  display: none;

  &.is-visible {
    display: block;
  }

  li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    cursor: pointer;
    gap: 8px;

    &:hover {
      background: var(--hover-bg, rgba(0, 0, 0, 0.05));
    }

    .history-text {
      flex: 1;
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
  }
}