A festive Christmas-themed mobile wallpaper featuring the glittery red text "Merry Christmas" with white borders, centered prominently. The background showcases a softly blurred Christmas tree adorned with glowing lights, creating a warm and cheerful ambiance. In the foreground, shiny red and silver ornaments and string lights are arranged on a rustic wooden surface. The composition is cozy, sparkling, and joyful, with high-resolution detail optimized for vertical mobile display.