Infographie Japonaise Entretien des Fleurs au Soda

Vertical portrait 4:5 Japanese educational infographic summarizing [切り花に炭酸飲料を入れる方法とメリット・デメリットまとめ], explaining how to add carbonated soft drinks to cut flower vase water, covering pros, cons, dilution ratio, procedure, and basic care. Layout & Style: Clean magazine-style layout on a warm off-white background with soft pastel borders, rounded information cards, subtle drop shadows, and a friendly household gardening aesthetic. Balanced mix of flat vector icons and crisp photo panels. Palette: coral pink, chocolate brown, mint green, pale yellow, sky blue, and light gray. Header: Bold Japanese headline in two colors, highlighting the carbonated drink phrase in coral pink and the rest in dark brown: [切り花に炭酸飲料を入れる方法とメリット・デメリットまとめ]. Below it, a smaller green subtitle: [海外で話題の「花を長持ちさせる裏技」を正しく知って、きれいなお花を長く楽しみましょう。]. On the upper right, a photo-style bouquet in a clear glass vase on a wooden table (pink gerbera daisies, cream roses, small white filler flowers, greenery). Beside it, two drink containers: a red can labeled "COLA" and a blue bottle labeled "CIDER". Below them, two small vertical photo panels of vase water: clear water vs. brown/tinted water. Upper Section: Two side-by-side rounded cards. - Left Card (pale yellow header): Title [なぜ炭酸飲料で花が長持ちする言われるの？]. Two numbered benefit rows with pink circular badges: 1) "糖分が栄養になる" with a stacked sugar cubes icon, explaining sugar provides energy; 2) "酸性成分が働く" with a blue water droplet icon, explaining acidity assists water absorption. - Right Card (pale pink header with yellow warning triangle): Title "知っておきたいデメリット・注意点". Four warning rows with red X icons: 1) sugar breeds bacteria and rots stems; 2) water becomes cloudy quickly; 3) dark drinks like cola discolor water; 4) excessive concentration impairs uptake and causes wilting. Middle Section: Wide rounded card with a blue outline and pale blue fill, split into two columns: - Left column titled "炭酸飲料の入れ方（おすすめの割合）" with a blue circular badge "おすすめの割合", a prominent formula "炭酸飲料：水 = 1：10 ～ 1：20程度", and example note "例：水1リットルに炭酸飲料50〜100ml". A "ポイント" subsection with two checkmark bullets: use clear cider/soda without artificial colors; dark drinks like cola stain the water. - Right column titled "手順" with 4 blue-circled steps: 1) clean water in vase; 2) add carbonated drink at ratio; 3) stir gently; 4) arrange flowers. Pale yellow note box: "水はこまめに交換しましょう（できれば毎日）". Far right: simple equation illustration (water droplet "水" + bubbling yellow glass "炭酸飲料"). Lower Section: Wide rounded card with green header: [切り花を長持ちさせる基本のお手入れ（炭酸飲料より効果的！）]. Four equal cards in a row, each with a green numbered badge, Japanese title, photo thumbnail, description, and green "ポイント" label: 1) "茎を斜めに切り戻す" (photo of cutting a stem diagonally underwater, point: cut underwater to prevent air bubbles); 2) "こまめに水替え" (photo of pouring fresh water into a vase, point: recut stems during water changes); 3) "葉が水に浸からないようにする" (photo of stems and water level, point: strip submerged lower leaves to prevent rot); 4) "市販の延命剤を使う" (photo of flower preservative packet by vase, point: follow packet instructions). Bottom Strip: Two rounded pale pink boxes. - Left box labeled "まとめ" with a flower icon, summarizing proper dilution vs. essential basic care. - Right box labeled "一言アドバイス" with a vase icon, advising to avoid direct sunlight and drafty air conditioners, keeping flowers cool. Constraints: Crisp, highly legible Japanese typography; strict grid alignment; no extra sections; no watermarks, QR codes, or random logos.