html {
  font-size: 16px; /* 默认值，会被JS覆盖 */
}

body {
  margin: 0;
  padding: 0;
}

.container {
  position: relative;
  height: calc(var(--vh, 1vh) * 100); /* 使用动态计算的视口高度 */
  /* overflow-y: scroll; */
  width: 100%;
}

.bg-image {
    object-fit: cover;
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}