/* ============================================================
 * print.css —— 打印 / 导出 PDF（仅保留字帖页，矢量输出）
 * ========================================================== */
@media print {
  @page { size: A4 portrait; margin: 0; }

  html, body {
    background: #fff !important;
    width: auto; height: auto; margin: 0; padding: 0;
    overflow: visible !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .paper-grain,
  .topbar,
  .hero,
  .panel,
  .stage-bar,
  .gallery,
  .materials,
  .guide,
  .footer,
  .modal,
  .toasts,
  .section-head { display: none !important; }

  main { padding: 0 !important; }
  .studio { max-width: none !important; padding: 0 !important; margin: 0 !important; }
  .studio-grid { display: block !important; gap: 0 !important; }

  .stage {
    display: block !important;
    min-height: 0 !important; border: 0 !important; border-radius: 0 !important;
    box-shadow: none !important; overflow: visible !important; background: #fff !important;
  }
  .stage-canvas {
    display: block !important; overflow: visible !important;
    padding: 0 !important; margin: 0 !important;
    background: #fff !important; background-image: none !important;
    height: auto !important;
  }
  .pages {
    display: block !important; width: auto !important; margin: 0 !important;
    transform: none !important; gap: 0 !important;
  }

  .cb-page {
    box-shadow: none !important; border-radius: 0 !important;
    margin: 0 !important; page-break-after: always; break-after: page;
  }
  .cb-page:last-child { page-break-after: auto; break-after: auto; }
  .cb-page::after { display: none !important; }
  .cb-page { page-break-inside: avoid; break-inside: avoid; }
}