/* 风格 0 · 素页 Plain HTML
   几乎不设计。只保证可读性与可用性，其余交给浏览器默认样式。这就是它的观点。 */
html[data-style="plain"] {
  color-scheme: light;
  font-family: Georgia, "Times New Roman", "Songti SC", SimSun, serif;
  line-height: 1.5;
}
html[data-style="plain"] body { background: #fff; color: #000; }
.pl-doc { max-width: 76ch; margin: 0 auto; padding: 24px 16px 160px; }
.pl-doc table { border-collapse: collapse; margin: 1em 0; max-width: 100%; }
.pl-doc th, .pl-doc td { border: 1px solid #999; padding: 6px 8px; vertical-align: top; text-align: left; }
.pl-doc caption { text-align: left; font-weight: bold; margin-bottom: 4px; }
.pl-doc img { border: 1px solid #999; }
.pl-doc a { color: #0000ee; }
.pl-doc a:visited { color: #551a8b; }
.pl-doc form { margin: 1em 0; }
.pl-doc form label { margin-right: 4px; }
.pl-doc form input, .pl-doc form select, .pl-doc form button { margin: 0 12px 8px 0; }
@media (max-width: 760px) {
  .pl-doc table { display: block; overflow-x: auto; }
  .pl-doc img { width: 160px; }
}