Create a vertical 9:16 cinematic xianxia fantasy portrait of character name=Song Yu, an elegant young Chinese immortal swordswoman in a dim interior. She has very long dark brown-black hair styled half-up with an ornate translucent white jade hair crown and two wing-shaped white pearl hair ornaments at the sides. Her face is intentionally hidden by a centered opaque dark warm-gray square censor block covering the entire face from forehead to chin. She wears a pale silver-white flowing hanfu robe with sheer off-shoulder sleeves, embroidered swirls, layered gauze, a deep V neckline, delicate red cord necklaces, white jade pendants, beads, and a small dark blue tassel ornament. Her right hand is raised in front of her lips in a quiet “shh” gesture with the index finger vertical. A long polished Chinese sword crosses the lower foreground diagonally from left to right, very close to the camera, with a bright reflective blade, engraved detail near the hilt, and an ornate dark metal guard and handle. Use moody low-key lighting with soft gray shadows, faint window light from the upper left, misty atmosphere, shallow depth of field, realistic fabric texture, cinematic film grain, muted cool-gray color grading, and a dramatic ancient martial-arts drama still aesthetic. Background is dark and blurred, suggesting wooden panels or a shadowy room. No extra text, no watermark.