A clean mobile app promotional poster on a soft mint-green background, centered and vertically composed, advertising an inventory management app called Zaiko. At the top, place a rounded white pill logo with the app name in green, then a smaller outlined pill beneath it containing a green dot, the number 01, and the Japanese text 見える化. Below that, add a large bold Japanese headline in dark navy: 買い忘れを、なくす。, followed by a smaller gray Japanese subheading: 残り日数で補充タイミングをひと目で確認. Under the subheading, show exactly 3 rounded category chips in one row: a white chip with a red dot and the label 残り日数, a white chip with a yellow dot and the label 通知, and a white chip with a green dot and the label 補充管理. In the center, display a realistic black-bezel smartphone mockup in front view with a grocery and household stock tracking app screen. The phone screen should have a solid green top bar with the app name, a pale information strip below it, then a summary card row with exactly 3 status counters: red-dot 2 要補充, yellow-dot 1 もうすぐ, and green-dot 2 余裕あり. Beneath that, show a vertically scrolling list of exactly 4 inventory item cards with soft rounded corners, subtle shadows, and colored urgency bars: 1) シャンプー with a red status bar and a red badge reading 1日超過, 2) トイレットペーパー with a red status bar and a red badge reading あと2日, 3) 食器用洗剤 with a yellow status bar and a yellow badge reading あと5日, 4) ボディーソープ with a green status bar and a green badge reading あと10日. Each card includes a small circular product icon on the left, Japanese item name and category/date text, and a lower action row with 3 small controls labeled 補充した, まだある, and リスト. Add a floating green circular plus button near the lower right of the phone screen. At the bottom of the app UI, include a green tab bar with exactly 3 navigation items and icons: ホーム, 買い物リスト, and 設定. Place the phone on a glossy rounded green pedestal with soft white side supports and a strong soft shadow, then add a large rounded white call-to-action pill on the pedestal with the Japanese text そろそろ買うものが、すぐわかる. Overall style: polished startup landing-page mockup, iOS app screenshot aesthetic, soft gradients, minimal Japanese UI design, crisp typography, centered composition, gentle ambient shadows, premium app store marketing visual.