/* 只展示一张图片：图片铺满整个页面，不留边距 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  background: #f4f7fc; /* 与图片顶部底色一致，避免出现接缝 */
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  background: #f4f7fc;
  overflow-x: hidden;
}

.stage {
  width: 100%;
}

.poster {
  display: block;
  width: 100%; /* 铺满页面宽度，无左右留白 */
  max-width: none;
  height: auto; /* 保持原始比例，整张长图完整展示 */
  background: #fff;
  user-select: none;
  -webkit-user-drag: none;
  animation: fade-in 0.35s ease-out both;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .poster {
    animation: none;
  }
}