Art style: magical family 3D animation, fairy-tale atmosphere, soft warm lighting, sparkling snow, golden magical sparks, cozy holiday wonder. 0:00-0:02: a tiny golden star flashes at the tip of the letter and the frost pattern on the glass sparks. 0:02-0:05, cut: the glass thaws, a glowing whirl lifts the letter and carries it out through the swirling snow into the night sky, still in motion. ...
