html,
body,
.home {
  /* font-size: calc(100vw / 3.75); */
  margin: 0;
  background: #f1f1f1;
  width: 100%;
  height: 100vh;
  box-sizing: border-box;
}
.wechat-mask {
  display: none;
}
.mask {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: .4267rem;
  color: #FFFFFF;
}
.mask img {
  width: .8267rem;
  height: .3733rem;
}
.mask .img {
  height: .5867rem;
}
.mask .mask-title {
  height: .9867rem;
  font-size: .6933rem;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #FFFFFF;
  line-height: .9867rem;
  letter-spacing: .0267rem;
  margin: 2.0rem 0 .2133rem 0;
}
.mask .arrow {
  width: 3.3067rem;
  height: 3.4933rem;
  position: absolute;
  right: .3033rem;
}
.mask .mask-btn {
  width: 5.8667rem;
  height: 1.1733rem;
  border-radius: .2133rem 0rem .2133rem 0rem;
  border: .0267rem solid #FFFFFF;
  font-size: .4267rem;
  margin-top: 2.7467rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  box-sizing: border-box;
  padding: .5333rem 0 .1067rem 0;
}
.logo img {
  width: 3.8933rem;
  height: 1.6267rem;
}
.logo span {
  font-size: .3733rem;
  font-family: PingFang-SC-Medium, PingFang-SC;
  font-weight: 500;
  color: #9f9f9f;
  line-height: .4533rem;
  margin-top: .1067rem;
}
.banner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.banner p {
  margin: 0;
  height: .5333rem;
  font-size: .3733rem;
  font-family: PingFang-SC-Medium, PingFang-SC;
  font-weight: 500;
  color: #636363;
  line-height: .5333rem;
  letter-spacing: .0267rem;
}
.banner .banner-title {
  height: .64rem;
  font-size: .48rem;
  font-family: OPPOSans-M, OPPOSans;
  font-weight: normal;
  color: #1e1d1d;
  line-height: .64rem;
  letter-spacing: .0267rem;
  margin-top: .7733rem;
}
.banner img {
  width: 7.68rem;
  height: 6.2133rem;
  margin: .24rem 0 .2667rem 0;
}
.download {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.download .download-btn {
  width: 9.1467rem;
  height: 1.1733rem;
  background: #ffb400;
  box-shadow: .0533rem .1067rem .2133rem .0533rem rgba(246, 223, 166, 0.59);
  border-radius: .2133rem 0rem .2133rem 0rem;
  line-height: 1.1733rem;
  text-align: center;
  margin: .96rem 0 .64rem 0;
}
.download .download-btn .download-a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  text-decoration: none;
  font-size: .4267rem;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #161617;
}

.download .downloaded {
  width: 9.1467rem;
  height: 1.1733rem;
  border-radius: .2133rem 0rem .2133rem 0rem;
  border: .0267rem solid #ffb400;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: underline;
  box-sizing: border-box;
}
.flex .download-a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: .3733rem;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #ffb400;
  padding-left: 0.1rem;
}

.flex {
  width: 100%;
  display: flex;
  text-align: center;
  font-size: .3733rem;
  color: #636363;
}

.flex.flex-center {
  align-items: center;
  justify-content: center;
}