body {
  margin: 0px;
  font-family: 'Segoe UI', Microsoft YaHei, Arial, Helvetica, sans-serif;
  color: rgb(0, 0, 0);
  letter-spacing: 0;
  /* position   : absolute; */
  height: 100vh;
  width: 100%;
  position: relative;
}
a{
  text-decoration: none;
}
.firmware-header {
  text-align: center;
}

.firmware-header > img {
  display: inline-block;
  margin-top: 48px;
  margin-bottom: 24px;
}

.tips {
  width: 327px;
  margin: 0 auto;
  display: block;
  text-align: center;
}

.update_tips {
  font-size: 16px;
  color: #000000;
  margin-bottom: 14px;
}

.update_firmware {
  font-size: 14px;
  color: rgba(0, 0, 0, 0.4);
  margin-bottom: 48px;
}

.is-wifi-show {
  display: none;
  width: 60%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 16px 0 rgb(0 0 0 / 20%), 0 16px 32px 0 rgb(0 0 0 / 12%);
  border-radius: 3px;
  background: #fff;
}

.firmware_tools_isWifi_title {
  opacity: 0.9;
  font-size: 18px;
  color: #000000;
  text-align: center;
  line-height: 26px;
  padding: 10px 20px 0;
}

.firmware_tools_isWifi_tips {
  opacity: 0.4;
  font-size: 14px;
  color: #000000;
  text-align: center;
  padding: 0 20px;
  line-height: 20px;
  margin-top: 16px;
  margin-bottom: 24px;
}

.firmware_tools_isWifi_btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 48px;
}

.firmware_tools_isWifi_btn > span {
  display: inline-block;
  height: 100%;
  width: 50%;
  line-height: 48px;
  border-top: 0.5px solid rgba(0, 0, 0, 0.12);
}

.firmware_tools_isWifi_cancel {
  opacity: 0.7;
  font-size: 18px;
  color: #000000;
  text-align: center;
  border-right: 0.5px solid rgba(0, 0, 0, 0.12);
}

.firmware_tools_isWifi_download {
  font-size: 18px;
  color: #e72528;
  text-align: center;
}