/* 简易版加载框样式  */
.s-loading-wrapper {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  border: 0;
  height: 100%;

  .s-loading {
    display: block;
    width: 60px;
    height: 60px;
    position: relative;
    left: 50%;
    top: 50%;
    text-align: center;
    transform: translate(-30px, -30px);

    &.s-loading-small {
      .s-loading-tip {
        margin-top: 0px;
      }

      .s-loading-dot {
        width: 20px;
        height: 20px;

        i {
          width: 9px;
          height: 9px;
        }
      }
    }

    &.s-loading-large {
      .s-loading-tip {
        margin-top: 2px;
      }

      .s-loading-dot {
        width: 32px;
        height: 32px;

        i {
          width: 14px;
          height: 14px;
        }
      }
    }

    .s-loading-tip {
      position: absolute;
      display: block;
      font-size: 12px;
      width: 100%;
      color: #f23f40;
    }

    .s-loading-dot {
      display: inline-block;
      position: relative;
      animation: uRotate 1s 0s linear infinite;

      i {
        position: absolute;
        display: block;
        transform: scale(0.75);
        border-radius: 100%;
        opacity: 0.3;
        animation: uSpinMove 1s infinite linear alternate;
        background-color: #f23f40;

        &:nth-child(1) {
          left: 0;
          top: 0;
        }

        &:nth-child(2) {
          right: 0;
          top: 0;
          animation-delay: 0.4s;
        }

        &:nth-child(3) {
          right: 0;
          bottom: 0;
          animation-delay: 0.8s;
        }

        &:nth-child(4) {
          left: 0;
          bottom: 0;
          animation-delay: 1.2s;
        }
      }
    }
  }
}

.s-nested-loading {
  position: relative;
  height: 100%;

  .s-loading-wrapper {
    position: absolute;
  }
}

@keyframes uSpinMove {
  to {
    opacity: 1;
  }
}

@keyframes uRotate {
  to {
    transform: rotate(360deg);
  }
}