* {
  padding: 0;
  margin: 0;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Oxygen, Ubuntu,
    Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  font-size: 14px;
  width: 100vw;
  display: flex;
  align-items: center;
}

.main {
  margin: 0 auto;
  width: 100%;
  max-width: 750px;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

@media (max-width: 750px) {
  .container {
    max-width: calc(100% - 20vw);
  }
}

.img {
  max-width: 100%;
}

.weixin_tip {
  display: none;
  height: 100vh;
  width: 100vw;
  background: url("../images/index/wxtips_ios.jpg") 100% top no-repeat;
  background-color: #000;
  background-size: 100%;
}

.coverColumn {
  background-repeat: no-repeat;
  background-position: center top;
  background-size: 100%;
  background-image: url("../images/index/background.png");
  background-image: -webkit-image-set(
    url("../images/index/background.png") 1x,
    url("../images/index/background@2x.png") 2x
  );
  background-image: image-set(
    url("../images/index/background.png") 1x,
    url("../images/index/background@2x.png") 2x
  );
}

.logo_box {
  padding-top: 40px;
  margin: 0 auto;
  max-width: 300px;
}

@media (max-width: 750px) {
  .logo_box {
    max-width: 40vw;
    padding-top: 5.33vw;
  }
}

.swiper {
  margin-top: 20px;
  margin-bottom: 40px;
}

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

.swiper-slide img {
  max-width: 100%;
}

.swiper-horizontal > .swiper-pagination-bullets,
.swiper-pagination-bullets.swiper-pagination-horizontal,
.swiper-pagination-custom,
.swiper-pagination-fraction {
  bottom: 140px;
}

.swiper-pagination-bullet {
  width: 16px;
  height: 8px;
  border-radius: 3px;
  background: rgba(192, 197, 215, 1);
  transition: all 0.3s ease-out;
  opacity: 1;
}

.swiper-pagination-bullet-active {
  width: 28px;
  background: rgba(111, 122, 164, 1);
}

@media (max-width: 750px) {
  .swiper {
    margin-top: 2.66vw;
    margin-bottom: 5.33vw;
  }

  .swiper-horizontal > .swiper-pagination-bullets,
  .swiper-pagination-bullets.swiper-pagination-horizontal,
  .swiper-pagination-custom,
  .swiper-pagination-fraction {
    bottom: 18.67vw;
  }

  .swiper-pagination-bullet {
    width: 2.13vw;
    height: 1.06vw;
    transition: all 0.3s ease-out;
  }

  .swiper-pagination-bullet-active {
    width: 3.73vw;
  }
}

.box {
  font-size: 28px;
  margin-top: 51px;
  display: block;
  /*渐变背景*/
  background-image: -webkit-linear-gradient(
    left,
    #3498db,
    #f47920 10%,
    #d71345 20%,
    #f7acbc 30%,
    #ffd400 40%,
    #3498db 50%,
    #f47920 60%,
    #d71345 70%,
    #f7acbc 80%,
    #ffd400 90%,
    #3498db
  );
  color: transparent; /*文字填充色为透明*/
  -webkit-text-fill-color: transparent;
  -webkit-background-clip: text;
  background-size: 200% 100%;
  animation: masked-animation 4s infinite linear;
}
@keyframes masked-animation {
  0% {
    background-position: 0 0; /*background-position 属性设置背景图像的起始位置。*/
  }
  100% {
    background-position: -100% 0;
  }
}

@media (max-width: 750px) {
  .box {
    font-size: 3.73vw;
    margin-top: 6.93vw;
  }
}

.downloadColumn {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 20px;
}

.downloadColumn > div {
  flex: 1;
}

.downloadTips {
  margin-top: 20px;
  font-size: 20px;
  color: rgb(66, 69, 83);
}

@media (max-width: 750px) {
  .downloadColumn {
    margin-bottom: 2.66vw;
  }

  .downloadTips {
    margin-top: 2.66vw;
    font-size: 2.66vw;
  }
}

.tutorialColumn {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 28px;
  margin-bottom: 64px;
}

@media (max-width: 750px) {
  .tutorialColumn {
    margin-top: 4.53vw;
    margin-bottom: 8.53vw;
  }
}

.fixedbutton {
  position: fixed;
  bottom: 26px;
  right: 20px;
  max-width: 60px;
  z-index: 99;
}

.fixedbutton .fixedbutton--column {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.fixedbutton .fixedbutton--column .fixedbutton--column--texthover {
  display: none;
  background-color: #fff;
  margin-right: 9px;
  box-shadow: 0px 0px 4px 0px rgb(0 0 0 / 40%);
  border-radius: 8px;
  padding: 8px;
  white-space: nowrap;
  font-size: 12px;
  color: #666666;
  text-decoration: none;
  text-align: left;
}

.fixedbutton
  .fixedbutton--column
  .fixedbutton--column--texthover
  .column--icon {
  margin-right: 10px;
}

.fixedbutton .fixedbutton--column.active .fixedbutton--column--texthover {
  display: flex;
}

@media (max-width: 750px) {
  .fixedbutton {
    bottom: 3.46vw;
    right: 2.67vw;
    z-index: 99;
  }
}