คีย์วิชวลอนิเมะไซไฟสองโลกคู่ขนาน

Cinematic anime key visual poster in a wide 16:9 composition with a split-world contrast design. Setting and Composition: - Left half: A brilliant utopian futuristic city in daylight featuring white crystalline skyscrapers, azure sky, warm sun flare, lush greenery, sparkling waterways, sleek curved architecture, and sweeping golden energy arcs. - Right half: A dark cyberpunk megacity at night under stormy clouds, dense neon-lit towers, purple and electric blue illumination, holographic signs, airborne structures, and rainy atmosphere. - Center foreground: Two protagonists standing back-to-back in profile right along the division line between worlds. Characters: - On the utopian left: A blonde young woman with a low ponytail and athletic build, dressed in a black sleeveless top and dark shorts, illuminated by warm daylight; her face is deliberately covered by a soft square beige blur. - On the cyberpunk right: A dark-haired young man in futuristic black tactical combat armor, lit by neon cyan and violet glows, featuring a glowing cyan infinity symbol on his shoulder plate; his face is deliberately covered by a soft square dark blur. Graphic Elements & Flags: - Left side: A large purple banner with gold streaks and a glowing blue circular crest. - Right side: A large black banner bearing a glowing cyan infinity symbol. - Infinity motifs across the cyberpunk side: A massive cyan infinity hologram near center-right, on the man's armor, on the banner, on a high tower billboard, and as a small neon sign near lower buildings. - Tower signage on the dark side: Vertically stacked glowing typography reading "REASON", "AGI", "VALUE", "REASON". Typography: - Lower center: Large sharp italic cracked title text reading "[SHADOW SYNC]", styled in white on the left transitioning into electric purple on the right, pierced by energy shards. - Beneath the main title: Small Japanese subtitle text reading "[影は、未来を選ぶ]". Style and Details: - High-end anime key visual style, dramatic split lighting, glossy sci-fi rendering, drifting particle effects, floating petals, shattered glass fragments, purple lightning arcing, deep contrast, crisp linework. No watermarks, no extra logos.