* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow: hidden;
  background: #080808;
  color: #ffffff;
  font-family: Arial, "Microsoft YaHei", sans-serif;
}

header {
  position: fixed;
  top: 28px;
  left: 32px;
  z-index: 10;
  pointer-events: none;
}

h1 {
  margin: 0 0 10px;
  font-size: 28px;
  font-weight: 500;
}

p {
  margin: 0;
  color: #aaaaaa;
  font-size: 14px;
}

#canvas-container {
  width: 100vw;
  height: 100vh;
}

canvas {
  display: block;
}