mobile game level-select screen, vertical 9:16 phone ui, traditional chinese elegant guofeng idiom puzzle game. off-white rice-paper silk texture bg with faint ink-wash mountains and misty clouds, generous negative space. classical gold-line scroll border. top center calligraphic chapter title + vermilion seal + tiny "progress". winding golden mountain-path ribbon connecting elegant circular jade-medallion nodes with soft glow; completed nodes gold with "done" seal, current level warm pulse highlight, locked levels covered by delicate off-white auspicious cloud (no padlock). seal-script milestones with vertical chapter names along path. drifting petals + firefly points. bottom-left round back btn, top-right music toggle. palette off-white/gold/vermilion/ink — premium, layered, flat vector guofeng, no illegible text, not photorealistic.