/* Only images you mark with this class will be centered */
.img-center {
  display: block;
  margin: 1em auto;
}

/* Auto-fit image row like Feishu Docs */
.img-row-auto {
  display: grid;
  gap: 12px;
  align-items: start;

  /* 每个格子最小 140px，能放几个放几个；剩余空间自动均分 */
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.img-row-auto img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px; /* 可删 */
}