html,
body {
  min-height: 100%;
  margin: 0;
  background: #e8edf3;
}

.app-download-page {
  width: 100%;
  max-width: 520px;
  min-height: 100vh;
  margin: 0 auto;
  background-color: #fff;
  color: #596678;
}

.app-download-page > .header {
  position: fixed;
  left: 50%;
  width: 100%;
  max-width: 520px;
  height: 31px;
  line-height: 31px;
  transform: translateX(-50%);
  background: #e7edf4;
  border: 0;
  color: #244d79;
}

.app-download-page > .header h4 {
  margin: 0;
  color: #244d79;
  font-size: 14px;
  font-weight: 600;
  line-height: 31px;
}

.app-download-page > .header a.back {
  top: 2px;
  left: 5px;
  width: 27px;
  height: 27px;
  line-height: 27px;
}

.app-download-page > .header a.back i {
  color: #496886;
  font-size: 19px;
}

.app-download-page .scroll_box {
  position: relative;
  width: 100%;
  min-height: calc(100vh - 31px);
  margin: 31px 0 0;
  padding: 36px 22px 30px;
  overflow: visible;
  box-sizing: border-box;
  background-color: #fff;
  background-image:
    linear-gradient(152deg, transparent 0 54%, rgba(229, 231, 233, .38) 54% 73%, transparent 73%),
    linear-gradient(24deg, rgba(237, 238, 239, .48) 0 16%, transparent 16% 62%, rgba(241, 242, 243, .55) 62% 83%, transparent 83%);
}

.app-download-page .app_box {
  position: relative;
  overflow: visible;
  width: 100%;
  margin: 0 auto;
}

.app-download-page .download-brand {
  margin: 0 auto 70px;
  color: #f1bd13;
  text-align: center;
  text-shadow: 0 1px 0 #795913, 0 2px 4px rgba(255, 255, 255, .85);
}

.app-download-page .download-brand h1 {
  margin: 0;
  font-family: "STKaiti", "KaiTi", "Microsoft YaHei", sans-serif;
  font-size: 50px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0;
}

.app-download-page .download-brand p {
  margin: 2px 0 0;
  font-family: Georgia, serif;
  font-size: 15px;
  line-height: 20px;
}

.app-download-page .platform-list {
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-download-page .platform-card {
  display: flex;
  width: 112px;
  height: 90px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid #8793a0;
  border-radius: 4px;
  background: rgba(255, 255, 255, .62);
  color: #586576;
  box-sizing: border-box;
}

.app-download-page .platform-card + .platform-card {
  margin-left: 34px;
}

.app-download-page .platform-card img {
  display: block;
  width: 46px;
  height: 46px;
  margin-bottom: 5px;
}

.app-download-page .platform-card span {
  font-size: 12px;
  line-height: 16px;
}

.app-download-page .download-intro {
  margin: 14px auto 0;
  color: #536173;
  font-size: 12px;
  line-height: 20px;
  text-align: center;
  white-space: nowrap;
}

.app-download-page .browser-entry {
  margin-top: 38px;
  text-align: center;
}

.app-download-page .browser-entry a {
  display: inline-block;
  min-width: 154px;
  height: 30px;
  padding: 0 15px;
  background: #edf0f4;
  border-radius: 16px;
  color: #334a65;
  font-size: 13px;
  line-height: 30px;
  box-sizing: border-box;
}

.app-download-page .warm-tip {
  margin: 12px 0 0;
  color: #687485;
  font-size: 12px;
  line-height: 20px;
  text-align: center;
}

.app-download-page .device-tip {
  display: none;
  max-width: 290px;
  margin: 16px auto 0;
  padding: 7px 10px;
  background: rgba(237, 240, 244, .88);
  border-radius: 4px;
  color: #596678;
  font-size: 12px;
  line-height: 18px;
  text-align: center;
}

@media (max-width: 340px) {
  .app-download-page .scroll_box {
    padding-right: 14px;
    padding-left: 14px;
  }

  .app-download-page .platform-card {
    width: 106px;
  }

  .app-download-page .platform-card + .platform-card {
    margin-left: 22px;
  }

  .app-download-page .download-intro {
    font-size: 11px;
  }
}

@media (min-width: 521px) {
  .app-download-page {
    box-shadow: 0 0 24px rgba(30, 50, 70, .18);
  }
}