Handwritten Style 3-Step Process Slide

[Input Data] - Overall Title: main_title - Step 1: Title "step_1_title" / Period "step1Period" / Description "step1Desc" - Step 2: Title "step2Title" / Period "step2Period" / Description "step2Desc" - Step 3: Title "step3Title" / Period "step3Period" / Description "step3Desc" - Color Theme: color_theme [Structure and Layout Specifications] - Style: A clean and friendly 3-step flowchart illustration suitable for Japanese business slides, educational manuals, or internal documents. 16:9 landscape slide configuration. - Background: Clean off-white or solid white background. - Top Title: - Place "Figure 3" or a step badge in the upper left, and to its right, draw a large Japanese main title "mainTitle" in a bold, easy-to-read Gothic font. Place a small, clean abstract logo mark at the right edge. - Step Card Arrangement: - Three beautiful rectangular cards arranged side-by-side. Placed in order from left to right, connected by thick arrows. Each card border is color-coded neatly according to the color theme (colorTheme). - Card 1 (Left) Interior: - Draw a circular badge "1" and the Japanese title "step1Title" prominently. Below that, a capsule label saying "step1Period". - In the center, place an illustration of a Japanese woman with a gentle hand-drawn touch taking notes, and a window showing the sun. - At the bottom, place the Japanese description "step1Desc". - Card 2 (Center) Interior: - Draw a circular badge "2" and the Japanese title "step2Title" prominently. Below that, a capsule label saying "step2Period". - In the center, place an illustration of two Japanese women with a flashlight, night sky, and buildings. - At the bottom, place the Japanese description "step2Desc". - Card 3 (Right) Interior: - Draw a circular badge "3" and the Japanese title "step3Title" prominently. Below that, a capsule label saying "step3Period". - In the center, place an illustration of the night sky and crescent moon, and a Japanese woman smiling with a victory pose. - At the bottom, place the Japanese description "step3Desc". [Quality and Font Specifications] - Simple, clean 2D illustration, flat design, crisp clear line art. - All text must be accurately drawn in readable Japanese fonts (Gothic) without spelling errors. - Exclude all 3D effects, shadows, laptop mockup backgrounds, or camera tilt; display the flat diagram itself across the entire screen. - Aspect Ratio: --ar 16:9