.counter {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  gap: 8px;
  padding: 8px 12px;
  width: 100%;
}

.counter--output {
  font-size: 14px;
  line-height: 20px;
  letter-spacing: 0.7px;
  text-align: center;
  display: flex;
  color: #000;
  border-radius: 8px;
  border: 1px solid #d9d9d9;
  background: #fff;
  width: 256px;
  height: 36px;
  padding: 0;
}

.counter input[type="number"]::-webkit-inner-spin-button,
.counter input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.counter--arrow-inc,
.counter--arrow-dec {
  border: none;
  padding: 0;
  cursor: pointer;
  background: none;
}

/* 增加 */
.counter--arrow-inc span:before {
  content: "";
  position: relative;
  display: block;
  width: 24px;
  height: 24px;
  background-image: url(../images/inc.svg);
  background-repeat: no-repeat;
  background-size: contain;
}

/* 減少 */
.counter--arrow-dec span:before {
  content: "";
  position: relative;
  display: block;
  width: 24px;
  height: 24px;
  background-image: url("../images/dec.svg");
  background-repeat: no-repeat;
  background-size: contain;
}