Affiche futuriste de la ville de Shenzhen

A dramatic vertical poster-style digital painting of {argument name="city name" default="Shenzhen"}, blending futuristic urban development with traditional culture at golden hour. At the top center, large expressive Chinese calligraphy reads {argument name="main title" default="Shenzhen"} in textured gold brush strokes, with a small red seal stamp beside it. Directly below, a bold Chinese slogan reads {argument name="subtitle text" default="Dare to venture, dare to try, open and inclusive"} in the same warm gold-white tone. The skyline is dominated by a tall, sleek central skyscraper resembling the Ping An Finance Centre, surrounded by dense modern high-rises under a vast painterly sky of deep stormy blue clouds opening into warm sunset light near the horizon. In the midground and right side, a modern port with exactly 4 red container cranes and stacked shipping containers emphasizes trade and industry. An elevated high-speed train curves from the bottom center toward the skyline, and the rail corridor glows with vivid neon-blue and white light trails that snake through the city in an elegant S-curve, suggesting speed, innovation, and connectivity. In the sky, exactly 11 quadcopter drones fly in loose formation, symbolizing technology and logistics. In the left foreground, include a historic Lingnan-style arcade building with ornate rooflines and warm interior lighting, contrasting old and new architecture. In the lower foreground, add dense greenery and blooming flowers, with especially vivid pink-red blossoms on the bottom right. Use a cinematic, aspirational, polished concept-art style with rich atmospheric perspective, ultra-detailed architecture, luminous highlights, subtle haze, and a blue-gold color palette. The composition should feel grand, optimistic, and visionary, like a tourism or city-branding propaganda poster celebrating innovation, openness, transportation, commerce, and heritage. Include a small white Chinese watermark at the bottom right reading {argument name="watermark text" default="Doubao AI Generation"}.