Alt Block Lines

Two lines of a couplet each sit on their own color block, block widths hugging their text, the two lines staggered by 0.12s — each line's block expands from the left via scaleX over 0.26s, while the text uses clip-path to shrink its right-side crop from 100% to 0 with the same curve and duration, **lagging 2 frames** so it gets "swept" out by the block's right edge; the couplet relationship is expressed through same-structure inverted colors (block 1 solid with white text / block 2 white with black text + 1px gray outline)