Pastel Japanese Mobile Game Ad

Create an adorable Japanese-style mobile game promotional poster, vertically divided into two halves. The background uses a soft watercolor style, with shimmering, translucent bubbles scattered around the canvas. The left half features a gradient from mint green to light yellow, while the right half transitions from cream to pale pink. Place a bold, rounded Japanese title in a light blue-green font in the top left corner.{argument name="left headline text" default="Find it, get inspired, meow."} Below is a smaller, soft brownish-grey subtitle:{argument name="left subtitle text" default="Easy hints make it playable for everyone."} A bold, raspberry-pink, rounded Japanese title is placed in the upper right corner:{argument name="right headline text" default="ミニゲームも、たっぷり。"} Below is a smaller, soft purple-gray subtitle:{argument name="right subtitle text" default="Play endlessly with memory games, puzzles, and slide games."} Two prototype smartphones with black bezels, facing forward, are placed in the center of each half. The left screen displays a hidden object game scene set in a bright, sunroom filled with lush tropical plants. A cream-colored hammock hangs diagonally in the center of the scene, the floor is covered in pink tiles, and warm sunlight streams through the glass windows. Soft glass balls hang from the windows, and a lemon is in the lower left foreground. Cute little characters are hidden in the scene. The top of the phone's UI displays the room title in Japanese.{argument name="left game screen title" default="おひるねサンルーム"} The right side of the phone screen displays a memory game interface with a light pink background, a back arrow, and the Japanese title "マカロン記憶ゲーム" (Makara no Kiseki Game) centered at the top. A three-step progress indicator (step 1 is highlighted, steps 2 and 3 are grayed out) is displayed below, along with the small text "よく見てにゃ…" (You see…). Four macarons (in a 2x2 grid) are arranged on the screen: pink in the upper left, blue in the upper right, yellow in the lower left, and white in the lower right, each with a soft circular shadow below it. A small twinkling star icon and two decorative macarons are added to the lower right corner of the screen, along with small heart-shaped doodles nearby. The overall style is that of a sophisticated app promotional visual: cute, clear, elegant, and soft-focus, with rounded fonts, delicate gradients, and subtle floral details, presenting the advertising quality of a high-end casual game.