.chat-mine-row {
  width: 100%;
  box-sizing: border-box;
  display: flex;
  justify-content: flex-end;
}

.chat-mine {
  margin: 12px;
  padding: 8px 16px;
  border-radius: 15px;

  /* 气泡为内联块，按内容宽度自适应；外层 `.chat-mine-row` 控制排列 */
  display: inline-block;
  box-sizing: border-box;
  vertical-align: top;
  width: auto;
  max-width: 100%;
  overflow-x: hidden;
}
