* {
  box-sizing: border-box;
  font-family: HelveticaNeue-Light, HelveticaNeue;
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
}
html,
body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}
iframe {
  /**消除下面的间隙*/
  vertical-align: bottom;
}

button {
  border: none;
}

li {
  list-style: none;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none !important;
}

input[type="number"] {
  -moz-appearance: textfield;
}

input:focus {
  outline: none;
}

span {
  user-select: none;
}
.header-bg {
  display: none;
}
#udesk_btn {
  display: none;
}
.kefu {
  display: block;
  position: fixed;
  box-sizing: border-box;
  font-size: 13px;
  color: rgb(255, 255, 255);
  text-align: center;
  cursor: pointer;
  text-decoration: none;
  z-index: 1000000000;
  width: fit-content;
  border-radius: 4px;
  padding: 10px;
  background-color: rgb(48, 122, 232);
  height: 40px;
  right: 0px;
  bottom: 0.8rem;
  margin: 3px 30px;
  display: flex;
}
.kefu img {
  margin-right: 5px;
}