"Trunk or Treat at Riverside Tech" 是一张万圣节活动海报，采用活泼的插画风格。奶油色圆润字体位于紫色夜空之上，下方是一辆打开的汽车后备箱，里面有南瓜灯、糖果碗，旁边是一个小幽灵和一个小女巫。你可以替换活动名称、组织、日期、时间和地点，制作自己活动的海报。

Create a finished, print-ready 3:4 vertical Halloween trunk-or-treat flyer for employees’ families at an office park. Keep all lettering and essential artwork within a 7% safe margin. Use a clear reading order and generous separation between text blocks; the headline must remain readable at phone-thumbnail size. Render this exact copy, with spelling and punctuation preserved: Top eyebrow, small: “RIVERSIDE TECH · FAMILY HALLOWEEN” Largest headline, on two centered lines: “Trunk or Treat” / “at Riverside Tech” Event details, bold and easy to scan: “FRIDAY, OCTOBER 30, 2026” / “NOON–2 PM” / “LOT B” Participation line: “Employees: decorate your cars · Kids: bring a bag” Small closing line: “Costumes welcome · Bring a bag for treats” Build the headline in custom, chunky rounded display capitals and lowercase: broad even strokes, open counters, slightly wobbly friendly contours, tight but distinct spacing, and no drips crossing letter interiors. Give the letters crisp cream faces with pumpkin-orange inset shading and a deep purple outline; add only a restrained warm glow. Keep all supporting copy in a clean, highly legible rounded sans, cream on a quiet dark-plum panel. Center a clearly recognizable decorated car with its trunk open as the main illustration: orange pumpkin lanterns, purple bunting, a few green paper bats, and bowls of wrapped candy visible in the trunk. Show two small costumed family silhouettes beside it, friendly and non-threatening. Place the car scene below the headline and above the event details. Set the flyer on a deep midnight-purple ground, with pumpkin-orange accents, small slime-green details, a few fine spiderweb strands at the outer corners, and a warm full moon with tiny bat silhouettes near the top. Use a lightly textured printed-paper finish, clean vector-like edges, soft pumpkin candlelight, and controlled shadows. Keep the background behind all copy uncluttered; no gore, blood, scary imagery, QR codes, extra words, or invented signage. High-resolution, sharp text, polished community-event flyer.