"Please design a 3:4 portrait-oriented poster for the launch of a new "Chinese-inspired" tea beverage under the brand name "Leovue AI." The overall style should be modern Chinese, understated luxury, and restrained, with a color palette centered on dark green, off-white, and gold. It should incorporate the texture of rice paper, negative space, delicate landscape motifs, and modern typography. The focal point of the image should be a visually striking cup of cold-brewed tea accompanied by elements such as tea leaves, citrus, ice cubes, and gold leaf. The design must strike a balance between commercial appeal and aesthetic appeal. The poster must accurately display the following text: Leovue AI, Mountain Grapefruit Guanyin, Cold-Brew Series, New Product Launch, "One Sip to Clear Your Mind, Half the City Welcomes Summer," Limited-Time Introductory Price, Medium Cup 16 RMB, Large Cup 19 RMB, In-Store Promotion: Buy One Get One Half-Price, Add 3 RMB to Upgrade to the Light Milk Version, First 10 Customers Daily Receive a Cup Sleeve, Recommended Flavors: Guanyin Tea Base / Grapefruit Aroma / Light Milk Cloud Top Event Period: April 20th. Small print at the bottom: Images are for reference only; actual products sold in-store prevail. The poster must clearly prioritize promotional information while maintaining a refined aesthetic—avoid the look of cheap e-commerce posters."

"Please create a complete set of interface designs for a check-in app."