* {
  margin: 0;
  padding: 0;
  user-select: none;
}
html,
body {
  position: relative;
  overflow-y: auto;
  font-size: 14px;
  color: #333;
}
.page-img {
  display: block;
  width: 100%;
  height: 100%;
}
/* 保持比例 */
.page-img.ratio {
  height: auto;
}

.icp {
  position: absolute;
  z-index: 1;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 5px 10px;
  text-decoration: none;
  color: #666;
}

.block-link {
  position: absolute;
  z-index: 1;
  background-color: rgba(0, 0, 0, 0.5);
  cursor: pointer;
}