Subject: Abstract vector gold foil lineart, continuous gold lines outline layers and relief effects, with core elements of Shanghai landmark buildings, gold line highlights emphasized. Scene: Matte sapphire blue paper background, with both fiber and velvet particle texture, no reflective effect. Style: Hot stamping relief vector craft style, clean and sharp craft feel, restrained white space without redundant elements. Tone: Sharp contrast between cool green and warm gold, sapphire blue background sets off gold lineart, clear color layering. Light and shadow: Gold line highlights strengthen details, cool tone background sets off warm gold lines, even and soft light and shadow. Composition: Main subject of the picture is prominent, elements arranged simply and orderly, reasonable white space, no text. Purpose: Party-building theme promotional poster, red culture Chinese style graphic design material.