Prompt:

Vertical infographic card for AI tool introduction, large bold title "DeepSeek" at top, subtitle "免费全能助手 中文最强", three key feature points listed with small icons: writing/analytics/long document summary, bottom tag row with three pill-shaped labels "免费" "识图模式" "国产天花板", Morandi palette with muted teal and warm gray, minimalist clean layout, soft shadow cards, white background, 3:4 ratio, no real logos