打招呼這兩個字，漂在浪尖上

Set inside a 9:16 vertical frame built to read as a poster or phone lock screen, a large three-dimensional letterform spelling "HI" floats calmly above an abstract sea of sculpted waves. The word "HI" stays highly legible and front-facing, sitting in the upper third to upper-middle of the crop with roomy letterspacing and subtle beveled edges that pick up color highlights. Beyond that main type, surfaces stay unlettered, wave crests simplified into smooth arcs and micro-markings that read as abstract lines. Cool blue, violet, and aqua hues — echoing #1E90FF, #6A5ACD, and #00CED1, with pale neutral highlights like #F5F7FA — give the scene gentle separation and a faint glow along the edges. Light stays soft and diffuse, laying gentle rim highlights on the type and soft shadows that hint at volume without pushing contrast. Focus stays crisp on the letterforms' front faces with moderate depth so the nearest wave ridges resolve clearly just behind the type. The composition reads tight and vertical, clean negative space above and a balanced mass of waves below, framed for a 9:16 portrait crop with centered alignment. A single reflective band across one wave crest and a faint specular streak along a letter edge suggest materiality as the only added props. Render the whole thing as polished 3D illustration, smooth gradients and minimal surface noise, so it reads as a modern graphic artwork.