Create an 8-10 second cinematic travel film set on a misty karst river at dawn and sunset. Beat 1: open with a high aerial pull-back over layered limestone peaks rising through soft morning mist, the river curving below like a muted green ribbon. Beat 2: cut to a low water-level tracking shot beside a small bamboo raft gliding forward, with subtle ripples, wet bamboo texture, and warm side light on simple neutral fabric. Beat 3: push into a calm detail moment: a traveler on the raft holds a steaming cup of tea while the mountain reflection and a distant white bird pass through the background. Beat 4: finish with a vertical rising panorama as golden sunset light spreads across the river and peaks, leaving the raft as a small elegant silhouette in the landscape. Use ink-green water, rain-grey mist, restrained gold highlights, soft over-cranked motion, and quiet premium travel pacing. Keep the river direction, raft scale, traveler wardrobe, mist density, mountain silhouettes, and light transition consistent. Avoid real place names, hotel or resort claims, UNESCO claims, readable promotional text, logos, crowds, modern signage, cultural stereotypes, impossible mountain geometry, duplicated rafts, drifting scale, and abrupt cuts that break the serene travel rhythm.