YouTube Thumbnail Katsudon Diet Method

Create a bright, visually striking Japanese-style YouTube video thumbnail about diet-friendly eating, using a clean left-right split composition. The left side has a white background filled with oversized bold Japanese title text, stacked vertically and diagonally for maximum readability: the top line is a huge vivid orange “カツ丼” with a thick white outline and soft drop shadow; below it is dark brown “食べても”; next is bright pink “太らない方法” with a white outline and yellow underline decoration; at the bottom is a huge red-orange “5”, next to dark brown “選!” with a white outline. Add small yellow sparkle decorations and manga-style emphasis marks around the title. In the lower-left corner, place a simple flat illustration of 1 woman shown from the waist up, wearing a yellow tank top, with brown hair tied in a ponytail, making an “OK” gesture, set against a pale yellow circle. The right side shows an appetizing close-up of a bowl of katsudon photographed under warm light: 1 ceramic bowl with blue vertical stripes, filled with golden fried pork cutlet over egg, onions, and rice, glossy sauce, visible rising steam, and 1 green herb leaf garnish on top. In the upper-right corner, add 1 white circular badge with a yellow dashed border, containing friendly handwritten-style Japanese text “おいしく楽しく♪ 賢くコントロール!”, with yellow emphasis marks around the badge. Along the bottom edge, add a light cream horizontal information bar with 5 circular icons and 5 labels evenly spaced from left to right: 1 salad bowl icon with “バランスの良い食事”, 1 scale icon with “カロリーを意識”, 1 walking person icon with “適度な運動”, 1 water glass icon with “水分をしっかり”, and 1 clock icon with “食べる時間を工夫”. Use a glossy commercial thumbnail aesthetic, warm-toned food photography, thick outlined lettering, a cheerful health-themed color palette, and a high-contrast design optimized for social media click-through rates.