body{margin:0;background:#fff;font:13px/1.6 "Microsoft YaHei",Tahoma,sans-serif;color:#333}.embed{box-sizing:border-box;padding:14px;display:flex;flex-direction:column;gap:12px}.desc{font-size:12px;color:#9ca3af}.tb{display:flex;gap:8px;align-items:center}.btn{height:34px;padding:0 16px;background:#ff5000;color:#fff;border:0;font-size:13px;cursor:pointer;border-radius:2px}.btn.ghost{height:26px;padding:0 12px;background:#fff;color:#ff5000;border:1px solid #ff5000;text-decoration:none;display:inline-flex;align-items:center}.btn.ghost:hover{background:#fff5f0}input[type=text]{height:34px;width:100%;box-sizing:border-box;padding:0 10px;border:1px solid #e5e7eb;outline:none;font:13px/1.4 Consolas,Menlo,monospace}input[type=text]:focus{border-color:#ff5000}.pv{display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid #e8eaee;min-height:120px;overflow:auto}canvas{background:#fff}