High-resolution image of a girl inspired by Steins;Gate, holding a cat while talking on a smartphone. The phone is held up naturally close to her ear, with the side of the phone visible from the front, positioned more straight and aligned with her ear, making the pose look natural and realistic. She has a shy and blushing expression, reflecting a sense of nervousness and affection. The girl's casual outfit is in soft, pastel colors like light pink, lavender, and pale yellow. Her hair is slightly messy and tousled, adding to her character's intellectual and slightly rebellious look. The cat she is holding is also in soft, complementary pastel colors. The smartphone has no visible cords or wires. The background is abstract and features muted pastel hues, enhancing the overall serene and whimsical atmosphere of the image. Ultra-detailed, high-resolution, with smooth lines and gentle shading to emphasize the pastel aesthetic. --ar 3:4 --niji 6