.sa-article {
    font-size: 16px;
    line-height: 1.68;
    color: #222;
    overflow-wrap: anywhere;
  }
  .sa-article h1,
  .sa-article h2,
  .sa-article h3,
  .sa-article h4 {
    line-height: 1.25;
  }
  .sa-article h2 { margin-top: 2.2em; }
  .sa-article h3 { margin-top: 1.7em; }
  .sa-article h4 { margin-top: 1.35em; }
  .sa-article p { margin: 0.85em 0; }
  .sa-article ul,
  .sa-article ol { padding-left: 1.35em; }
  .sa-article li { margin: 0.35em 0; }
  .sa-article a { text-decoration: underline; }
  .sa-article .sa-lead {
    font-size: 1.08em;
  }
  .sa-article .sa-note,
  .sa-article .sa-warning,
  .sa-article .sa-expert {
    margin: 1.2em 0;
    padding: 0.9em 1em;
    border-left: 4px solid #777;
    background: #f6f7f8;
  }
  .sa-article .sa-warning {
    border-left-color: #9b2c2c;
    background: #fff6f6;
  }
  .sa-article .sa-expert {
    border-left-color: #2f6f52;
    background: #f3f8f5;
  }
  .sa-article .sa-formula {
    display: inline-block;
    font-family: Consolas, Monaco, monospace;
    font-size: 0.95em;
    white-space: nowrap;
  }
  .sa-article .sa-table-wrap {
    width: 100%;
    max-width: 100%;
    margin: 1.1em 0 1.5em;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid #dfe3e6;
    border-radius: 6px;
  }
  .sa-article table.sa-table {
    width: 100%;
    min-width: 760px;
    margin: 0;
    border-collapse: collapse;
    border-spacing: 0;
  }
  .sa-article table.sa-table.sa-table-wide { min-width: 1050px; }
  .sa-article table.sa-table.sa-table-compact { min-width: 640px; }
  .sa-article table.sa-table th,
  .sa-article table.sa-table td {
    padding: 10px 12px;
    border-right: 1px solid #e5e7e9;
    border-bottom: 1px solid #e5e7e9;
    text-align: left;
    vertical-align: top;
  }
  .sa-article table.sa-table th:last-child,
  .sa-article table.sa-table td:last-child { border-right: 0; }
  .sa-article table.sa-table tr:last-child td { border-bottom: 0; }
  .sa-article table.sa-table thead th {
    background: #f2f4f5;
    font-weight: 700;
  }
  .sa-article table.sa-table tbody tr:nth-child(even) { background: #fafafa; }
  .sa-article .sa-center { text-align: center !important; }
  .sa-article .sa-nowrap { white-space: nowrap; }
  .sa-article .sa-small { font-size: 0.91em; color: #555; }
  .sa-article .sa-pass { font-weight: 700; color: #2e7d32; }
  .sa-article .sa-fail { font-weight: 700; color: #c62828; }
  .sa-article .sa-toc {
    margin: 1.3em 0;
    padding: 1em 1.1em;
    background: #f7f7f7;
    border: 1px solid #e2e2e2;
    border-radius: 6px;
  }
  .sa-article .sa-toc ol { margin: 0; }
  .sa-article .sa-sources li { margin-bottom: 0.6em; }
  @media (max-width: 720px) {
    .sa-article { font-size: 15px; line-height: 1.62; }
    .sa-article h1 { font-size: 1.75em; }
    .sa-article h2 { font-size: 1.45em; }
    .sa-article h3 { font-size: 1.2em; }
    .sa-article table.sa-table th,
    .sa-article table.sa-table td { padding: 8px 9px; }
    .sa-article .sa-note,
    .sa-article .sa-warning,
    .sa-article .sa-expert { padding: 0.8em 0.85em; }
  }