Cute Mermaid Puppy Undersea Game Start Screen

A bright, fantastical 3D underwater game launch screen, placed within a rounded rectangular app window, designed like a refined children's casual game login page. The scene is a colorful seabed, with warm sunlight streaming through clear turquoise water, surrounded by soft bubbles, and soft-toned corals and shells covering the sandy seabed. On the left, prominent large Chinese title text occupies the center of the composition: “Bubble Bay Mermaid Dog Rescue Team,” with a smaller line of text above it reading “Underwater Rescue Begins,” and a subtitle below: “Collect shells, help turtles, and light up the lighthouse with Xiao Wang.” All text uses a simple, modern UI font, with the title in very large dark navy blue characters. On the right, place a charming mermaid puppy character inspired by preschool adventure animation: a smiling dog with cream and light brown fur, large violet eyes, teal accessories on her drooping ears, a purple seashell necklace, and a mint green mermaid tail, floating vertically in the water. The character is surrounded by a magical coral reef environment, containing 10 prominent foreground and midground ocean elements: a purple rock arch on the far left, a pink starfish attached to coral on the left, a lavender clam shell in the lower left corner, a large pink branching coral in the foreground center, a pink shell in the lower right corner, an orange starfish on the beach in the mid-right, a blue porous rock in the foreground on the right, a cluster of blue tubular coral on the far right, a tall purple-pink coral tower behind the character, and a coral flower next to the tower. Use soft shades of water green, turquoise, pink, lavender, peach, and coral orange, presenting a glossy toy texture and soft depth of field. Three rounded UI buttons are arranged horizontally at the bottom left: a yellow main button with a play icon labeled “Start”; a white secondary button with a circular target icon labeled “Level Select”; and a white secondary button with a star icon labeled “Stickers.” In addition, add a small circular settings button with a gear icon in the upper right corner. Overall style: high-end children's mobile game launch screen, playful, healing, cinematic lighting, high-end 3D illustration, friendly and engaging.