.lang-sheet {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.lang-sheet.is-open {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

.lang-sheet__mask {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}

.lang-sheet__panel {
  position: relative;
  width: 100%;
  max-width: 750px;
  background: #fff;
  border-radius: 12px 12px 0 0;
  overflow: hidden;
  transform: translateY(100%);
  transition: transform 0.28s cubic-bezier(0.36, 0.66, 0.04, 1);
}

.lang-sheet.is-open .lang-sheet__panel {
  transform: translateY(0);
}

.lang-sheet__item {
  display: block;
  width: 100%;
  border: none;
  background: #fff;
  padding: 16px;
  font-size: 16px;
  color: #303133;
  text-align: center;
  cursor: pointer;
  font-family: inherit;
  border-bottom: 1px solid #ebedf0;
}

.lang-sheet__item:last-child {
  border-bottom: none;
}

.lang-sheet__item:active {
  background: #f2f3f5;
}

.lang-sheet__item--cancel {
  color: #606266;
  margin-top: 6px;
  background: #f7f8fa;
}