.center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
body,
html {
  width: 100%;
  background: rgba(0, 0, 0, 0.7);
}
#app {
  position: relative;
  width: 100%;
  background: rgba(0, 0, 0, 0.7);
}
#app .con_phone {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.7);
  padding-bottom: 1.44rem;
}
#app .con_phone .banner {
  width: 100%;
}
#app .con_phone .briefIntroduction {
  position: relative;
  width: 100%;
  padding: 0.35rem 0;
  background: linear-gradient(180deg, #B34DFF 0%, #6724BF 100%);
}
#app .con_phone .briefIntroduction .mask {
  height: 0.8rem;
  padding: 0 0.2rem;
  background: #443939;
  font-size: 0.32rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  border-radius: 0.3rem;
  line-height: 0.8rem;
  text-align: center;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  top: 0;
  z-index: 99;
}
#app .con_phone .briefIntroduction .group {
  width: 6.28rem;
  height: 0.76rem;
  margin: 0 auto;
  margin-bottom: 0.3rem;
  background-image: url('../img/qqBG.png');
  background-repeat: no-repeat;
  background-size: 100% 100%;
}
#app .con_phone .briefIntroduction .group .qq {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 0.76rem;
  font-size: 0.28rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 0.4rem;
}
#app .con_phone .briefIntroduction .group .qq input {
  position: absolute;
  bottom: -100%;
  opacity: 0;
}
#app .con_phone .briefIntroduction .group .qq .icon_copy_b {
  position: relative;
  width: 0.42rem;
  height: 0.42rem;
  margin-left: 0.12rem;
  z-index: 30;
}
#app .con_phone .briefIntroduction .emsCnpl {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.66rem;
  height: 3.24rem;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 0.21rem;
}
#app .con_phone .briefIntroduction .emsCnpl img {
  width: 2.51rem;
  height: 2.58rem;
  border-radius: 0.17rem;
}
#app .con_phone .briefIntroduction .emsCnpl p {
  width: 100%;
  height: 0.6rem;
  font-size: 0.28rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 0.6rem;
  text-align: center;
}
#app .con_phone .briefIntroduction .introduce {
  width: 6.9rem;
  margin: 0 auto;
  margin-top: 0.41rem;
  font-size: 0.24rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 0.33rem;
}
#app .con_phone .briefIntroduction .sign {
  margin-top: 0.58rem;
  font-size: 0.24rem;
  font-family: PingFangSC-Semibold, PingFang SC;
  font-weight: 600;
  color: #b58de3;
  line-height: 0.33rem;
  text-align: center;
}
#app .con_phone .briefIntroduction .sign a {
  position: relative;
  color: #b58de3;
}
#app .con_phone .briefIntroduction .sign a img {
  position: absolute;
  left: 0;
  top: 0;
  width: 0.3rem;
  height: 0.3rem;
}
#app .con_phone .briefIntroduction .sign .police {
  padding-left: 0.35rem;
}
#app .con_phone .briefIntroduction .download {
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  bottom: 0;
  width: 100%;
  height: 1.44rem;
  margin-top: 0.3rem;
  background: rgba(0, 0, 0, 0.7);
  z-index: 90;
}
#app .con_phone .briefIntroduction .download a {
  width: 6.46rem;
  height: 0.94rem;
  font-size: 0.32rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 0.94rem;
  text-align: center;
  background-image: url('../img/btn_wolf_pop_main.png');
  background-repeat: no-repeat;
  background-size: 100% 100%;
}