.roundedArrow(
  @arrow-size,
  @border-radius-outer,
  @border-radius-inner,
  @bg-color: var(--antd-arrow-background-color),
  @box-shadow: none
) {
  @unit-width: (unit(@arrow-size) / 2);
  @border-radius-outer-without-unit: unit(@border-radius-outer);
  @border-radius-inner-without-unit: unit(@border-radius-inner);

  @a-x: 0;
  @a-y: @unit-width;
  @b-x: ((@border-radius-outer-without-unit * 1) / sqrt(2));
  @b-y: (@unit-width - @border-radius-outer-without-unit * (1 - 1 / sqrt(2)));
  @c-x: (@unit-width - @border-radius-inner-without-unit * (1 / sqrt(2)));
  @c-y: (@border-radius-outer-without-unit * (sqrt(2) - 1) + @border-radius-inner-without-unit * (1 / sqrt(2)));
  @d-x: 2 * @unit-width - @c-x;
  @d-y: @c-y;
  @e-x: 2 * @unit-width - @b-x;
  @e-y: @b-y;
  @f-x: 2 * @unit-width - @a-x;
  @f-y: @a-y;

  @arrow-shadow-width: @unit-width * sqrt(2) + @border-radius-outer * (sqrt(2) - 2);

  // polygon offset
  @polygon-offset: @border-radius-outer * (sqrt(2) - 1);
  @polygon-right: @arrow-size - @polygon-offset;
  @arrow-polygon: polygon(@polygon-offset 100%, 50% @polygon-offset, @polygon-right 100%, @polygon-offset 100%);
  @arrow-path: path('M @{a-x} @{a-y} A @{border-radius-outer-without-unit} @{border-radius-outer-without-unit} 0 0 0 @{b-x} @{b-y} L @{c-x} @{c-y} A @{border-radius-inner-without-unit} @{border-radius-inner-without-unit} 0 0 1 @{d-x} @{d-y} L @{e-x} @{e-y} A @{border-radius-outer-without-unit} @{border-radius-outer-without-unit} 0 0 0 @{f-x} @{f-y} Z');

  width: @arrow-size;
  height: @arrow-size;
  overflow: hidden;
  pointer-events: none;

  &::before {
    position: absolute;
    bottom: 0;
    width: @arrow-size;
    height: calc(@arrow-size / 2);
    background: @bg-color;
    content: '';
    clip-path: @arrow-polygon; // For browser that do not support path()
    clip-path: @arrow-path;
    inset-inline-start: 0;
  }

  &::after {
    position: absolute;
    bottom: 0;
    z-index: 0;
    width: @arrow-shadow-width;
    height: @arrow-shadow-width;
    margin: auto;
    background: transparent;
    border-radius: 0 0 @border-radius-inner;
    box-shadow: @box-shadow;
    transform: translateY(50%) rotate(-135deg);
    content: '';
    inset-inline: 0;
  }
}