antd-mobile/cjs/components/action-sheet/action-sheet.css

<img src="https://gw.alipayobjects.com/mdn/rms_ee68a8/afts/img/A*hjjDS5Yy-ooAAAAAAAAAAAAAARQnAQ" alt="logo" width="100%" />

.adm-action-sheet-popup > .adm-popup-body {
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  overflow: hidden;
}
.adm-action-sheet-extra {
  display: flex;
  justify-content: center;
  color: var(--adm-color-weak);
  font-size: 15px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--adm-border-color);
}
.adm-action-sheet-button-item-wrapper {
  background-color: #ffffff;
  border-top: 1px solid var(--adm-border-color);
}
.adm-action-sheet-button-item-wrapper:first-child {
  border-top: none;
}
.adm-action-sheet-button-item {
  padding: 14px;
  text-align: center;
}
.adm-action-sheet-button-item-name {
  color: var(--adm-color-text);
  font-size: 18px;
}
.adm-action-sheet-button-item-description {
  font-size: 12px;
  color: var(--adm-color-weak);
  padding-top: 4px;
}
.adm-action-sheet-button-item-danger .adm-action-sheet-button-item-name {
  color: var(--adm-color-danger);
}
.adm-action-sheet-cancel {
  background-color: #f5f5f5;
  padding-top: 8px;
}