Generate a poster on the principle of repairing damaged hair, without needing the entire hair care product body. The background transitions from deep black to deep brown, with subtle golden edge light outlining the composition. At the top, a small line of English words reads "DEEP HAIR CARE," while below it features a gold-white modern serif and sans-serif combined with the title "Direct to the Hair Core / Radiating Soft Shine," followed by a line of small text reading "Nourishes from within, helps improve dry, frizzy appearance." The middle section features a horizontally enlarged dark hair structure: the left cuticle slightly raised, two translucent amber gold essence particles permeate inward along the hair in the middle section, and the right hair surface is smoother and shinier. Two fine gold threads are used to mark "penetrate the hair core / supplement nourishment" and "smooth the surface / reveal a soft shine." At the bottom, three black rounded hair texture cards are arranged side by side, titled "Dry and Frizzy," "Heat Damage Dullness," and "Fragile Split Ends." Overall premium restraint to avoid treatment promises, original brand images, ingredient patents, tiny footnotes, and watermarks.