"Neon Renaissance: How Shanghai's Cyber-Fusion Districts Are Rewriting Urban DNA" Section 1: The Code of Nostalgia Shanghai's 2025 heritage-tech paradox:• 1930s shikumen now house 47% of the city's blockchain startups• AI-curated "Memory Lanes" recrteea1980s market atmospheres digitally• QR-embedded qípáos generate ¥28