.pc-widget{max-width:320px;margin:12px 0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:13px}.pc-loading,.pc-error{padding:10px 12px;background:#f5f5f5;border:1px solid #ddd;border-radius:6px;color:#555}.pc-stage{position:relative;border-radius:8px;overflow:hidden;border:1px solid #ddd}.pc-bg{display:block;width:100%;height:100%}.pc-piece{position:absolute;pointer-events:none;filter:drop-shadow(0 1px 3px rgb(0 0 0 / .4));transition:left 0.02s linear}.pc-track{position:relative;margin-top:10px;height:40px;background:#eee;border-radius:20px;border:1px solid #ddd}.pc-track-fill{position:absolute;top:0;left:0;height:100%;width:0;background:#d7ebff;border-radius:20px}.pc-handle{position:absolute;top:0;left:0;width:40px;height:40px;background:#fff;border:1px solid #bbb;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:grab;user-select:none;box-shadow:0 1px 3px rgb(0 0 0 / .2)}.pc-handle:active{cursor:grabbing}.pc-status{min-height:18px;margin-top:6px;color:#666}.pc-widget.pc-solved .pc-status{color:#1a7f37;font-weight:600}.pc-widget.pc-solved .pc-handle{background:#d7f5df;border-color:#1a7f37}