/* V4: 仅移动端首页视频背景 */
.m-page section.hero.lv4-active {
  position: relative !important;
  isolation: isolate;
  overflow: hidden;
  background-image: none !important;
}

.m-page section.hero.lv4-active > .hero-bg {
  display: none !important;
}

.m-page section.hero.lv4-active .dots {
  display: none !important;
}

.m-page section.hero.lv4-active > .lv4-video {
  position: absolute !important;
  inset: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: cover !important;
  object-position: center center !important;
  z-index: 0 !important;
  pointer-events: none !important;
  display: block !important;
}

.m-page section.hero.lv4-active >
:not(.lv4-video):not(.hero-bg) {
  position: relative;
  z-index: 1;
}