Stylized 3D, vertical 9:16. Close on the tooth-woman (match
master_r2_woman.png) at the mirror: the black Smart Black floss
(match master_r2_floss.png) glides between her tight front teeth
without fraying, flicking out the dark food, her teeth now perfect.
Triumphant relief on her face. Bright restroom light, glossy enamel.
REVYLINE branding readable. No on-screen text.
