.chat-wrap {
  .chat-contain {
    font-family: Avenir, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: #2c3e50;
    margin-top: 24px;

    .span-back {
      color: var(--Text-2, #3C4043);
      font-size: 14px;
      font-family: Alibaba PuHuiTi;
      font-weight: 400;
      line-height: 62px;
      word-wrap: break-word
    }
  }

  .span-back {
    color: var(--Text-2, #3C4043);
    font-size: 14px;
    font-family: Alibaba PuHuiTi;
    font-weight: 400;
    line-height: 22px;
    word-wrap: break-word
  }
  .custom-sider {
    width: 20% !important; // 强制覆盖
  }

  @media (min-width: 1400px) and (max-width: 1799px) {
    .custom-sider {
      width: 30% !important;
    }
  }

  @media (min-width: 1800px) {
    .custom-sider {
      width: 15% !important;
    }
  }


}