Build a single numbered Stepper for a multi-step wizard, not a full page. Structure: a horizontal row of at least four steps labeled Cart, Address, Payment, Review, connected by lines. Each step shows a number in a circle plus a short label. Completed steps are highlighted, the current step is emphasized, future steps are muted. Interaction: click a reachable step to make it current; optional Next/Back. States: upcoming, current, completed, error optional. Do not use a progress bar alone, chevron fishbone, or tabs. If a design system exists, map colors to its tokens but keep this structure. No extra page chrome, no emoji.
做成带数字的横向步骤条,用于多步向导,不要整页。至少四步 Cart、Address、Payment、Review,圆圈数字加短标签,步间有连线。已完成高亮,当前步强调,未到步弱化。可点已到达的步;可有下一步/上一步。不要只用进度条、鱼骨箭头或标签页。 若项目已有设计系统,颜色跟 token,结构和交互保持不变。不要整页壳,不要 emoji。