a cinematic time-travel animation poster. two ancient chinese girls sitting on a wooden boat in the foreground. the left girl has a pale blue dress and a long black ponytail, holding a black lacquer box. the right girl has a purple robe and a double-loop bun, holding bamboo slips. composition: they are sailing out of an ancient mist. the foreground characters are drawn in flat 2d. in the deep background, the silhouettes of a modern suspension bridge and glowing neon city lights emerge from the thick fog. the thick fog separates the ancient characters from the modern background. large empty sky at the top. art style: strictly 1970s-1980s shanghai animation film studio flat color and gouache style, vintage film grain. 8k,