* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: #000;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", SimHei, Arial, Helvetica, sans-serif;
}

img {
  display: block;
}

.stage {
  position: relative;
  width: 1440px;
  height: 1024px;
  margin: 0 auto;
  overflow: hidden;
}

.stage-wrapper {
  width: 1440px;
  height: 1024px;
  transform-origin: top left;
}

.viewport {
  min-height: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.clickable {
  cursor: pointer;
  user-select: none;
}

a.clean-link,
a.clean-link:visited,
a.clean-link:hover,
a.clean-link:active {
  color: inherit;
  text-decoration: none;
}