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

$module: #{$prefix}-carousel;
.#{$prefix}-rtl,
.#{$prefix}-portal-rtl {
    .#{$module} {
        direction: rtl;
        
        &-indicator {
            display: flex;

            &-dot {
                .#{$module}-indicator-item {
                    &:not(:last-child) {
                        margin-right: 0;
                        margin-left: $spacing-carousel_indicator_dot-marginX;
                    }
                }
            }

            &-columnar {
                .#{$module}-indicator-item {
                    &:not(:last-child) {
                        margin-right: 0;
                        margin-left: $spacing-carousel_indicator_columnar-marginX;
                    }
                }
            }
        }

        &-arrow {
            flex-direction: row-reverse;

            &-prev {
                left: auto;
                right: $spacing-carousel_arrow-right;
                transform: scaleX(-1) translateY(-50%);
                z-index: 2;
            }
            
            &-next {
                left: $spacing-carousel_arrow-left;
                transform: scaleX(-1) translateY(-50%);
                right: auto;
                z-index: 2;
            }
        }
    }
}