html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
  padding: 0;
  margin: 0;
  font: inherit;
  font-size: 100%;
  vertical-align: baseline;
  border: 0;
}
html, body {
  /* 禁止下拉/上拉的弹性效果 */
  overscroll-behavior: none;
}
.layout {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: #ffffff;
}
.el-drawer {
  border-radius: 20px 20px 0 0;
}