VELLO MILK CRISP：牛奶饼干的情绪开关

Create a flagship commercial advertising poster for an original milk biscuit snack brand named "VELLO MILK CRISP", combining Orbit energy with Port symbol power. Use ultra-realistic commercial photography, not illustration, not 3D render.

Core composition: one clear vertical divide separates two emotional worlds. Left side: warm muted brown study-room atmosphere, the same young man slouched, bored, mentally drained, chin resting on one hand. Right side: vivid cool-blue energized world, the same young man smiling, uplifted, relaxed, naturally biting the biscuit with visible enjoyment. Across the lower center foreground, place one oversized horizontal snack pack bridging both worlds. The pack must be larger, sharper, and more dominant than any other object. The product should visually read as the switch that transforms the scene from dull to alive.

Port logic: turn the hero pack into the brand's super-symbol. The combination of the oversized blue wrapper, milk splash, biscuit pieces, and the left-right emotional contrast must feel like one ownable brand device. The viewer should remember the pack as a "mood upgrade button" at first glance.

Orbit logic: build a strong left-to-right transformation path using doodle arrows, milk splash motion, biscuit placement, hand gesture direction, and gaze flow. The eye should begin in the left-side boredom zone, hit the hero pack in the center, then burst outward into the right-side joyful zone.

Product concept: redesign the snack as an original milky cream biscuit called "VELLO MILK CRISP". The pack should be shelf-ready, youthful, and globally marketable, with a saturated royal-blue and cream identity, rounded white lettering, appetizing biscuit imagery, and minimal claims such as "crispy milk biscuit" and "triple snack packs".

Lighting: left side uses warmer, dimmer, flatter indoor lighting with softer contrast. Right side uses brighter, cleaner, cooler commercial lighting with stronger separation and more vibrant highlights. The hero pack must receive the cleanest studio key light with crisp print detail and strong edge clarity.

Color strategy: left side warm dusty browns and muted amber tones; right side vivid blue and cool electric highlights; hero pack in saturated royal blue, white, cream, and biscuit-gold; milk-white accents as freshness triggers. Keep the palette disciplined and high-contrast.