:root {
  color-scheme: dark;
  background: #000;
}

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

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #000;
}

body {
  min-width: 320px;
  min-height: 100svh;
}

.video-stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
}

.hero-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  background: #000;
}

@media (orientation: portrait) {
  .hero-video {
    object-position: center center;
  }
}

.site-footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  text-align: center;
  font: 12px/1.5 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  pointer-events: none;
}

.site-footer a {
  pointer-events: auto;
  color: rgba(255, 255, 255, 0.62);
  text-decoration: none;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
  transition: color 0.2s ease;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: underline;
}