ClaudeCode AI Corporate Training Banner

Create a refined Japanese corporate training banner using a wide horizontal web ad format, with a background gradient from deep navy blue to deep blue, dotted with faintly glowing network nodes and cables at the top and center, creating a high-tech AI and business atmosphere. On the right side, a bust of a confident businessman is placed, dressed in a deep navy blue suit, white shirt, blue striped tie, arms crossed and facing forward; Partially trim the top and right edges. On the left, a strong typographic hierarchy is established, with a small cyan heading at the top stating {argument name="headline text" default="AI활용된 開発技能を、最短で習得" }, followed by an oversized bold white main title containing {argument name="main title" default="ClaudeCode Training"}. In the lower left area, three rounded rectangular function boxes are placed, with bright blue lines and dark interiors, accompanied by blue icons: the first box displays the terminal/code icon and text "Claude Code's Basics and Application"; the second box displays the rocket icon and text "開発速を수수的进进先"; the third box shows the duo/team icon and text "On-site, Immediately Utilize Skill". On the far right, a large blue slanted polygon annotation panel is overlayed, containing two lines of bold dark text, with the content {argument name="callout text" default="Development from tomorrow\nchanging experience." "}。 Using clear, modern sans-serif Japanese fonts, it emphasizes high contrast, refined marketing design, clean spacing, bright teal accents, and the visual impact of high-end AI seminar ads.