.sell-square-video-box {
  max-width: 980px;
  margin: 0 auto;
  padding: 12px;
  border: 1px solid #e1e5ee;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 12px 30px #182d4a10;
}

.sell-square-video-box video {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  background: #f7f9fc;
}

@media (max-width: 600px) {
  .sell-square-video-box {
    padding: 8px;
    border-radius: 16px;
  }
}