CSS实现多层嵌套结构最外层旋转其它层不旋转效

<!--头像区域-->
<div class="headPortrait-panel">
    <!--加载层-->
    <div class="load-panel loadWhirl">
        <!--头像显示层-->
        <div class="headPortrait-img-panel avatarRotation">
            <img src="../assets/img/login/LoginWindow_BigDefaultHeadImage@2x.png"/>
        </div>
    </div>
</div>

  /头像区域/
  .headPortrait-panel{
    width: 100%;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-: 50px;

    /加载层/
    .load-panel{
      width: 240px;
      height: 240px;
      border-radius: 50%;
      display: flex;
      justify-content: center;
      align-items: center;
      background: url("../img/login/loading-circle@2x.png");

      img{
        width: 100%;
        height: 100%;
      }

      // 头像旋转动画
      .avatarRotation{
        animation: internalAvatar 3s linear;
        // 动画无限循环
        animation-iteration-count:infinite;
      }

      /头像显示层/
      .headPortrait-img-panel{
        width: 200px;
        height: 200px;
        border-radius: 50%;
        overflow: hidden;
        border: solid 1px #ebeced;

        img{
          width: 100%;
          height: 100%;
        }
      }
    }

    // 外部旋转动画
    .loadWhirl{
      animation: externalHalo 3s linear;
      // 动画无限循环
      animation-iteration-count:infinite;
    }
  }

  // 定义外部光环旋转动画
  @keyframes externalHalo {
    0%{
      transform: rotate(0deg);
    }
    25%{
      transform: rotate(90deg);
    }
    50%{
      transform: rotate(180deg);
    }
    100%{
      transform: rotate(360deg);
    }
  }

  // 定义内部头像旋转动画
  @keyframes internalAvatar {
    0%{
      transform: rotate(0deg);
    }
    25%{
      transform: rotate(-90deg);
    }
    50%{
      transform: rotate(-180deg);
    }
    100%{
      transform: rotate(-360deg);
    }
  }