现代网络研讨会宣传横幅

modern Japanese webinar promotional poster, 16:9 horizontal layout, bold split composition with a hot magenta left panel and matte black right panel divided by a sharp diagonal slash, large white and black sans-serif typography, oversized Japanese headline blocks, smaller English title “Claude Code”, subtle calendar-style numbers ghosted in the background, clean editorial advertising design, on the right a studio portrait of a young Japanese woman with shoulder-length dark hair and bangs wearing a plain black knit top, chest-up, facing camera with a calm confident expression, soft diffused beauty lighting, natural skin texture, minimal shadows, high contrast graphic layout, crisp vector text treatment, sleek tech-seminar branding, white accent lines and date/time callouts, color palette of vivid pink, black, and white, polished commercial key visual, sharp focus, front-facing eye-level camera, premium contemporary social media event banner aesthetic