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auto;touch-action:none;cursor:crosshair}.px-sig-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}.px-sig-pad{width:100%;max-width:700px;aspect-ratio:700 / 220;border:2px dashed var(--px-line);border-radius:12px;background:#fff;touch-action:none;display:block;margin-bottom:8px}.px-sig [data-pane="type"]{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}.px-sig [data-pane="type"] input{flex:1 1 220px}.px-sig-size{display:flex;align-items:center;gap:10px;font-weight:600;margin:8px 0}.px-sig-pages{display:flex;flex-direction:column;align-items:center;gap:16px;max-height:80vh;overflow:auto;padding:8px;background:var(--px-bg-soft);border-radius:12px}.px-sig-page{position:relative;box-shadow:var(--px-shadow);background:#fff;cursor:copy;max-width:100%}.px-sig-page canvas{display:block}.px-sig-num{position:absolute;top:6px;left:8px;font-size:11px;font-weight:700;background:rgba(255,255,255,0.85);padding:2px 6px;border-radius:6px}.px-sig-mark{position:absolute;border:1px dashed #4338ca;cursor:move;touch-action:none}.px-sig-mark img{width:100%;height:100%;display:block;pointer-events:none}.px-sig-mark button{position:absolute;top:-12px;right:-12px;width:24px;height:24px;border-radius:50%;border:0;background:#dc2626;color:#fff;font-weight:800;cursor:pointer;line-height:1}.px-ocr-text{width:100%;font:14px/1.6 ui-monospace,Consolas,monospace;padding:12px;border:1px solid var(--px-line);border-radius:10px;margin:10px 0}.px-trim-video{width:100%;max-height:60vh;border-radius:12px;background:#000}.px-wave{width:100%;height:140px;border:1px solid var(--px-line);border-radius:12px;background:#fff;touch-action:none;cursor:ew-resize;display:block}.px-wave-actions{display:flex;align-items:center;gap:12px;margin-top:8px;flex-wrap:wrap}.px-meta{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap;margin-bottom:12px}.px-meta-img{width:160px;border-radius:10px;border:1px solid var(--px-line)}.px-meta .px-format-table{flex:1 1 320px;min-width:0}.px-meta-all summary{cursor:pointer;font-weight:700;margin:8px 0}.px-tool-byline{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;color:var(--px-muted);margin-top:10px}.px-tool-byline a{color:var(--px-brand-text);font-weight:600}.px-quick-answer{border-left:4px solid var(--px-brand);background:var(--px-brand-soft);border-radius:0 var(--px-radius-sm) var(--px-radius-sm) 0;padding:14px 18px;margin:0 0 22px}.px-quick-answer strong{display:block;font-family:var(--px-display);font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--px-brand-text);margin-bottom:4px}.px-quick-answer p{margin:0;font-size:15.5px;line-height:1.6;color:var(--px-ink)}.px-related-searches{list-style:none;padding:0;margin:8px 0 20px;display:flex;flex-wrap:wrap;gap:8px}.px-related-searches li{font-size:13.5px;padding:6px 12px;border-radius:999px;background:var(--px-bg-soft);border:1px solid var(--px-line);color:var(--px-ink-2)}.px-guide-toc{border:1px solid var(--px-line);border-radius:var(--px-radius-sm);padding:14px 18px;margin:0 0 24px;background:var(--px-surface)}.px-guide-toc strong{display:block;font-family:var(--px-display);margin-bottom:6px}.px-guide-toc ol{margin:0;padding-left:20px}.px-guide-toc li{margin:4px 0}.px-guide table{width:100%;border-collapse:collapse;margin:12px 0 20px;font-size:14.5px;display:block;overflow-x:auto}.px-guide th,.px-guide td{border:1px solid var(--px-line);padding:9px 12px;text-align:left;vertical-align:top}.px-guide thead th{background:var(--px-bg-soft);font-family:var(--px-display)}