semi-design/packages/semi-foundation/steps/rtl.scss

$module: #{$prefix}-steps;
$basicModule: #{$prefix}-steps-basic;
$navModule: #{$prefix}-steps-nav;

.#{$prefix}-rtl,
.#{$prefix}-portal-rtl {
    .#{$module} {
        direction: rtl;

        &-item {
            margin-right: auto;
            margin-left: $spacing-steps_item-marginRight;

            &-content {
                margin-left: auto;
                margin-right: $spacing-steps_item_content-marginLeft;
            }
        }
    }

    .#{$basicModule} {
        direction: rtl;

        &.#{$module}-horizontal {
            .#{$item} {
                .#{$item}-title {
                    padding-left: $spacing-steps_basic_item_title-paddingRight;

                    &::after {
                        right: 100%;
                    }
                }
            }
        }

        &.#{$module}-vertical {
            .#{$item} {
                margin: 0;
            }
        }
    }

    .#{$navModule} {
        direction: rtl;
    }
}