/* ========================================
   打印样式
   ======================================== */
@media print {
  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  .site-header, .site-footer, .menu-toggle, .main-nav,
  .ad-container, .breadcrumb, .related-grid,
  .calc-actions, .solve-for-selector,
  input[type="range"], .slider-group {
    display: none !important;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
  }

  .result-box {
    background: #eee !important;
    color: #000 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .data-table th {
    background: #ddd !important;
    color: #000 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: #666;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }
}