.big-data-select {
  width: 100%;
  border: 1px solid #ccc;
  border-radius: 4px;
  height: 34px;
  box-sizing: border-box;
  cursor: pointer;
  position: relative;
  color: #555;
}
.big-data-select.disabled {
  opacity: 0.55;
  cursor: default;
}
.big-data-select .big-data-select-checked {
  width: 100%;
  height: 32px;
  padding: 0 12px;
  line-height: 32px;
  box-sizing: border-box;
  position: relative;
}
.big-data-select .big-data-select-checked::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  position: absolute;
  right: 10px;
  top: calc(50% - 4px);
  border: 5px solid transparent;
  border-width: 6px 4px;
  border-top-color: #888;
}
.big-data-select.big-data-select-open .big-data-select-checked::after {
  transform: rotate(180deg);
  top: calc(50% - 8px);
}
.big-data-select .big-data-select-popup {
  width: 100%;
  height: auto;
  border: 1px solid #aeaeae;
  position: absolute;
  left: 0;
  top: calc(100% + 2px);
  border-radius: 4px;
  overflow: hidden;
  display: none;
  z-index: 10000;
  background: #fff;
}
.big-data-select .big-data-select-search {
  width: 100%;
  border-bottom: 1px solid #aeaeae;
  padding: 4px;
  box-sizing: border-box;
}
.big-data-select .big-data-select-search > .big-data-select-search-input {
  margin: 0;
  outline: none;
  border: 1px solid #b1b1b1;
  display: block;
  border-radius: 2px;
  width: 100%;
  box-sizing: border-box;
  font-size: 14px;
  padding: 4px 6px;
}
.big-data-select .big-data-select-scroll {
  width: 100%;
  max-height: calc(10 * 24px);
  overflow-y: auto;
  overflow-x: hidden;
}
.big-data-select .big-data-select-options {
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
}
.big-data-select .big-data-select-options > li {
  width: 100%;
  box-sizing: border-box;
  list-style: none;
  padding: 0 10px;
  height: 24px;
  font-size: 14px;
  line-height: 24px;
  position: absolute;
  left: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.big-data-select .big-data-select-options > li.active {
  background: #dde7ed;
}
.big-data-select .big-data-select-options > li:hover {
  background: #dde7ed;
}