/* ===== 全局样式重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  font-size: 16px;
}

#app {
  width: 100%;
  height: 100%;
}

