Generate a vertical 3:4 "Light Handbook-Style Product Poster." 【Brand Info】 Brand name: 【fill in brand name】 English auxiliary name: 【optional, may be omitted】 Brand temperament: 【fill in, e.g.: urban light tea / handmade desserts / light-meal lifestyle / fresh and low-burden】 Logo direction: 【fill in, e.g.: leaf + water ripples + island silhouette / fruit + tea leaf / minimalist handmade symbol】 【Product Info】 Product name: 【fill in】 Product type: 【tea drink / light milk tea / fruit tea / parfait / dessert cup / iced treat / coffee / light meal】 Theme direction: 【fill in, e.g.: early-summer freshness / midsummer fruit aroma / light sweet healing / summer limited / today's pick】 Main title: 【fill in a handwritten-style Chinese title, e.g.: a light first sip of summer / a sweet-and-sour summer / drink in the south wind in one sip】 Subtitle or product sub-name: 【fill in, e.g.: lime jasmine iced tea / bayberry yogurt parfait / mango coco ice】 Auxiliary phrases: 【2-4 items, e.g.: fresh fruit aroma / light tea aftertaste / layered fruit fragrance / very light on the palate / summer limited】 【Color System】 Main tone: 【fill in, e.g.: mint green / cream white / light pink / light yellow / light orange / misty teal】 Accent color: 【fill in, e.g.: lime green / bayberry red / mango yellow / tea-broth gold / coconut-milk white】 Overall color requirement: bright, light, low visual pressure, fresh; not heavy, not dingy gray, no cheap high saturation. 【Series Positioning】 This is a summer light-style product poster suitable for tea drinks, desserts, coffee, light meals, iced treats, etc. Overall it should combine: - semi-realistic product hero visual - handwritten-style Chinese title - light hand-drawn annotation elements - fresh negative-space background - small tags / small round stamps / sticky-note info modules The image should carry brand feel, lightness, freshness, youthfulness, and refined taste, but not look like a cheap promo flyer or a children's illustration. 【Product Presentation Requirements】 The product hero must be semi-realistic, real, refined, and three-dimensional, with natural light and soft shadows, being the absolute visual focus. 【Background & Atmosphere】 Use a light-color soft gradient or a clear negative-space background, optionally with a slight matte paper texture or soft glow. A slight seasonal atmosphere may be added per the theme, but keep the background uncomplicated and avoid turning it into a real large scene. Overall it should have a sense of air, breathing room, and ample negative space. 【Hand-Drawn Element Requirements】 Add a few light hand-drawn elements around the product for annotation and atmosphere; they should be thin, light, relaxed, with a journal feel, yet not too cluttered, must not cover the product hero, and must not look like a kindergartner's drawing. 【Copy Layout Structure】 Top: brand logo + brand name Upper-middle area: large handwritten-style Chinese main title Below the title: product sub-name / subtitle Center: product hero visual Around the product: 2-4 handwritten annotation bubbles / small tags / sticky notes Lower partial area: calorie info / light selling points / functional info / ingredient short phrases Bottom: minimalist auxiliary notes, small icons, light tags 【Composition Requirements】 Overall vertical 3:4, centered composition or center-lower weighted composition. The hero visual should be stable, with text and annotations unfolding around it. Clear reading path: brand → main title → product → annotations → bottom info. Medium-to-rich information amount, but the image must stay clean and not overcrowded. 【Style Keywords】 fresh, light, semi-realistic, hand-drawn annotation, product poster, negative-space feel, brand feel, summer feel, youthful, light commercial, refined, healing, refined taste, female-audience friendly.