.model-select-box {
  position: relative;
  float: left;
  width: auto;
  min-width: 9.375rem;
  margin-right: .625rem;
  box-sizing: border-box;
  font-size: 1rem;
  line-height: 1.5;
  color: #212529;
  background: #fff;
  border: .0625rem solid #ced4da;
  border-radius: .375rem;
  user-select: none;
  cursor: pointer;
  z-index: 99;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.model-select-box,
.model-select-box * {
  box-sizing: border-box;
}

.model-select-box:hover {
  border-color: #0E6AAB;
  z-index: 100;
}

.model-select-box:focus-within {
  border-color: #0E6AAB;
  box-shadow: 0 0 0 .1875rem rgba(14, 106, 171, .15);
  z-index: 100;
}

/* 当前选中的文字 */
.model-select-box .model-select-text {
  display: block;
  min-height: 2.6875rem;
  padding: .5rem 2.25rem .5rem .75rem;
  font-size: 1rem;
  color: #212529;
  white-space: nowrap;
  cursor: pointer;
}

/* 向下箭头 */
.model-select-box .bg1 {
  position: absolute;
  top: 50%;
  right: .875rem;
  width: .4375rem;
  height: .4375rem;
  margin-top: -.3125rem;
  border: solid #6c757d;
  border-width: 0 .09375rem .09375rem 0;
  transform: rotate(45deg);
  pointer-events: none;
}

/* 下拉菜单 */
.model-select-box .model-select-option {
  display: none;
  position: absolute;
  top: 100%;
  left: -.0625rem;
  width: max-content;
  min-width: calc(100% + .125rem);
  max-height: 17.5rem;
  overflow-y: auto;
  margin: 0;
  padding: .3125rem;
  list-style: none;
  background: #fff;
  border: .0625rem solid #dee2e6;
  border-radius: .375rem;
  box-shadow: 0 .375rem 1.125rem rgba(0, 0, 0, .12);
  z-index: 1000;
}

.model-select-box:hover .model-select-option,
.model-select-box:focus-within .model-select-option {
  display: block;
}

/* 下拉选项 */
.model-select-box .model-select-option li {
  margin: 0;
  padding: .5rem .75rem;
  border: 0;
  border-radius: .25rem;
  font-size: 1rem;
  color: #212529;
  font-weight: 400;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
}

.model-select-box .model-select-option li + li {
  margin-top: .125rem;
  border-top: 0;
}

.model-select-box .model-select-option li:hover {
  color: #0E6AAB;
  background: rgba(14, 106, 171, .08);
}

.model-select-box .model-select-option li.xr-sku-active {
  color: #fff;
  background: #0E6AAB;
}

.model-select-box .model-select-option li a {
  display: block;
  font-size: inherit;
  color: inherit;
  text-decoration: none;
}