明日方舟-史尔特尔·第01期手机壁纸

vertical 9:16 mobile phone wallpaper composition, portrait orientation. use an understated natural figure, restrained character silhouette, and clothing that falls smoothly without exaggerated volume. A high-quality illustration featuring Surtr from Arknights (long vivid red hair, red eyes, black curved horns, black and white combat dress with red accents, dark jacket and tactical straps). looking at the viewer, calm relaxed pose, not casting any skill or ability. cleanly detailed, smooth rendering with soft gradients and clean flat color areas, minimal grain or noise, clearly adult character, natural anatomically balanced adult proportions, fashion-forward styling faithful to the specified outfit design.