Tea Poster New Chinese Cold Brew Elegance

Design a 3:4 vertical poster to promote a new Chinese-style tea drink. Use a modern New Chinese visual style with an overall feeling of understated luxury and restraint. The color palette should feature deep green, warm ivory, and gold, with rice paper texture, generous negative space, subtle landscape accents, and a contemporary layout.

Main subject:
A visually appealing cup of cold brew tea, featuring tea leaves, citrus, ice cubes, and a few delicate gold foil details.

The poster must accurately display the following exact Chinese copy:
"山川茶事"
"山柚观音"
"冷泡系列"
"新品上市"
"一口清醒，半城入夏"
"限定尝鲜价"
"中杯 16 元"
"大杯 19 元"
"门店活动"
"第二杯半价"
"加 3 元升级轻乳版"
"每日前 100 名赠限定杯套"
"推荐风味"
"观音茶底 / 西柚果香 / 轻乳云顶 / 冰感回甘"
"活动时间 4月20日 至 5月10日"
"扫码点单"
"SHANCHUAN TEA"

Fine print:
"图片仅供参考，请以门店实际售卖为准"

While maintaining an upscale overall feel, keep the promotional hierarchy clear. Do not make it look cheap or overly e-commerce-like. Pay special attention to fine print, numbers, prices, information modules, and the aesthetic quality of Chinese typography.