html {
  font-size: 10px;
}



body {
  max-width: 720px;
  font-family: Calibri;
  margin: 0 auto;
  background-color: #fff;
  width: 100%;
}

header {
  height: 68px;
  width: 100%;
  max-width: 720px;
  display: flex;
  align-items: center;
  color: #ffffff;
  justify-content: space-between;
  padding: 0 7px;
  background-color: #67008f;
  position: fixed;
  top: 0;
  left: 50%;
  transform: translate(-50%);
  z-index: 2;
  overflow: hidden;
}

header .icon {
  display: flex;
  align-items: center;
}

header .icon img {
  width: 41px;
  height: 41px;
  margin: 0 0 0 0.2rem;
  border: solid 2px #ffffff;
  border-radius: 10px;
}

.container .banner {
  width: 100%;
  height: 100%;
  margin-top: 68px;
  position: relative;
  font-size: 0;
  min-height: 500px;
}
.container .banner img {
  width: 100%;
}

header a {
  text-decoration: none;
  font-weight: 500;
  margin: 0px 5px 0px 5px;
}

header span {
  margin-left: 40px;
  font-size: 22px;
  font-weight: bold;
  color: #ffffff;
}

header::after {
  content: "";
  display: block;
  width: 100%;
  height: 1px;
  background-color: #ffd71e;
  position: absolute;
  bottom: 0;
  left: 0;
}

.container {
  position: relative;
  width: 100%;
  overflow: hidden;
  margin: 0 auto;
  max-width: 720px;
  z-index: 0;
  background-color: #67008f;
}

.container .dowmload {
  position: absolute;
  top: 76.5%;
  left: 23%;
  width: 50%;
  height: 1.2rem;
  background-image: url("/images/master-download-btn.png");
  background-size: 100% 100%;
  background-repeat: no-repeat;
  animation: rotate 1s linear infinite;
  cursor: pointer;
}

.container .footer {
  position: absolute;
  bottom: 0;
  right: 0;
  top: 98%;
  width: 100%;
  height: 2.5rem;
  color: #ffffff;
 margin-bottom: 20px;
}

.footer p {
  padding: 0;
  margin: 0;
}

@keyframes rotate {
  0% {
    transform: scale(0.88);
  }
  50% {
    transform: scale(100%);
  }
  100% {
    transform: scale(0.88);
  }
}