Luxury Natto Product Banner

Create a luxurious Japanese advertising banner for NÉBA, premium fermented soybeans/natto, in a dramatic dark purple and black studio setting with radiant gold light trails, glittering particles, and an elegant high-end cosmetics/jewelry aesthetic. The composition is a square promotional visual: on the right, a transparent faceted crystal octagonal jar is open, overflowing with glossy amber-brown natto beans; long sticky golden strands stretch upward and swirl like luminous silk threads, with individual beans suspended in the strands. The jar has a dark plum label with gold typography reading NÉBA, small Japanese premium-product copy, and a refined floral emblem. Behind it, the open crystal lid stands upright with the same gold logo, resembling a luxury perfume or gem case. On the lower left, show a bowl of white rice topped with natto, green onion rings, a dab of mustard, and a dramatic splash of dark sauce shaped like a crown. Use large elegant Japanese headline text on the left reading ねばりが、美学になる。, with the word for beauty in oversized gold calligraphy and the rest in white. Below it, include smaller Japanese body copy reading 糸まで、美しい。架空のプレミアム納豆、誕生。. Add a large serif Roman product title “NÉBA” with the subtitle “PREMIUM FERMENTED SOYBEANS” beneath it. At the bottom right, place a slim dark rectangular call-to-action button with a gold border, Japanese text reading 気になるなら、まず一粒。, and a right arrow. Overall style: ultra-polished luxury food commercial, hyper-detailed 3D product rendering, glossy reflections, faceted glass refraction, cinematic gold rim lighting, premium Japanese typography, intentionally over-the-top and not practical as an informational banner.