Ghosts Assemble Spooky Halloween Party Invitation

Professional Halloween party invitation card, vertical, hand-drawn cartoon finish. [Colors] warm off-white #FFF9F0 ground, pumpkin orange #F97316, grape violet #6D28D9 accents, solid ink black #111111. [Layout] stacked card: a headline block top-left with a violet pill subtitle beneath, a large rounded orange information panel filling the middle with five icon rows divided by thin rules, and a small closing speech bubble bottom-left beside a grinning jack-o'-lantern. [Typography] heavy rounded sans with a thick black outline, tilted two degrees; white body lines inside the orange panel; a tiny caps label at the panel corner. [Subject] a happy white sheet ghost in a crooked witch hat bumps fists with a huge-eyed black cat perched on the panel edge; one flat bat floats above, and three mini ghost icons repeat inside violet discs. [Lighting & mood] shadowless flat daylight, candy-bright and playful. [Details] white sticker keylines around every character, hand-drawn sparkle ticks, rounded icon discs, dotted QR box bottom-right. Text: "GHOSTS ASSEMBLE", "HALLOWEEN FAMILY PARTY", "OCT 31 · 3PM".