Generate a [transparent overlay for a food livestream room], for the scenario of [food group-buying / local-life livestream / live commerce], in [vertical 9:16] format. This is a foreground image overlaid on the live feed, not an ordinary poster. The live feed is the star; the sticker only supports the mood, signals the theme, and shows conversion info. [1. Overall structure] No full surrounding frame; no big center-cutout frame; do not let top, sides, and bottom connect into a closed ring; use the structure "irregular title sticker on top + a few floating tags on one side + irregular product-tray sticker at the bottom"; the top and bottom stickers may extend sideways to the canvas edges for more impact, but must not smother the live area; keep only [1-2] floating tags/small cards/small elements, preferably on one side only, not a long sidebar; the central live area must be largely empty, ensuring space for the host and products, with an obvious sense of breathing room. [2. Layout proportions] Ratio 9:16; top sticker about 15%~22% of the height; bottom sticker about 15%~25%; central live area keeps about 55%~70% of the visual space; side floating tags small, only as accent and info supplement, not pressing on the center. [3. Top sticker] Must be irregular, not a neat rectangle; the outline, per theme, can be: torn paper, cloud, flame, steam, grass waves, menu board, neon sign, brushstroke, cut-out sticker, transparent acrylic edge, etc.; must contain [brand name], [main title], [subtitle], and a few support words or selling phrases; the title should be recognizable and striking, but the sticker overall not too heavy; partial outline, light shadow, semi-transparent edge, cut corners, cut-outs, slight glow allowed, but not too complex. [4. Bottom sticker] Must be an irregular product-tray sticker to hold the hero dishes, combo sets, or product array; light undulation, irregular edges, partial cut-outs allowed, not neat and heavy; highlight 1~3 hero dishes with appetite appeal and commercial feel; a few ambience elements allowed, e.g. steam, flame, grass, table, mist, night-market lights, wooden plate, etc.; a short selling line allowed, but not a heavy bottom bar. [5. Side floating tags] Only on one side; 1~2 groups; forms: price tag, hero-dish card, recommendation sticker, coupon, hangtag, menu tag, bestseller sticker; do not form a continuous sidebar; do not steal visual focus from the title and dishes. [6. Information hierarchy] Follow the "few and precise" principle, do not overfill. Suggested levels: 1st main title (largest); 2nd subtitle / campaign note; 3rd side tags (hero, price, offer); 4th bottom short line / short selling copy. Do not cram all prices, campaigns, and service guarantees into the frame. [7. Style and colors] Overall style: [style direction]. Colors: main color [fill in]; auxiliary color [fill in]; accent color [fill in]. Requirements: colors serve the theme; color should carry livestream atmosphere and commercial impact; cases clearly distinct, not the same template with swapped text; no pile-up of low-quality tacky promo colors. [8. Content variables] Brand name: [fill an original brand name]; theme direction: [fill in]; main title: [fill in]; subtitle: [fill in]; support words: [2-4 short words]; side tags: [1-2]; hero dishes: [1-3 products or dishes]; bottom short line: [short selling copy]; style direction: [fill in]; main color: [fill in]; auxiliary color: [fill in]; accent color: [fill in]. [9. Transparent area] Do not place text, dishes, people, or frame in the central live area; fill the center uniformly with pure magenta #FF00FF as a placeholder color for later cut-out; do not use checkerboard, gray grid, white background, or black background to fake transparency; later the #FF00FF area will be processed into a real transparent alpha-channel PNG. [10. Image quality] Design with commercial polish; livestream-room atmosphere; eye-catching title; appetizing dishes; irregular stickers with layering and breathing room; overall light, transparent, and clear, not heavy or clogged; closer to real, usable livestream overlay material than an ordinary poster.