@media (max-width: 575px) {
  .public-banner {
    background-image: url('../images/common-problem/mobile/banner.png');
  }
  .public-container {
    margin: 0.48rem auto 1.22rem;
    width: 6.86rem;
  }
  .question-item {
    width: 100%;
    border: 1px solid #E0E0E0;
    padding: 0.58rem 0.26rem 0.44rem 0.58rem;
    box-sizing: border-box;
    margin-top: 0.32rem;
  }
  .question-item:nth-of-type(1) {
    margin-top: 0;
  }
  .question-item .vertical-red-line {
    width: 5px;
    height: 0.4rem;
    background-color: #FD0000;
    border-radius: 2.5px;
    margin-right: 0.24rem;
  }
  .question-item h3 {
    font-size: 0.32rem;
    font-weight: 500;
    line-height: 0.44rem;
  }
  .question-item p {
    color: #4a4a4a;
    font-size: 0.28rem;
    line-height: 0.72rem;
    margin-top: 0.18rem;
  }
}
@media (min-width: 576px) {
  .public-banner {
    background-image: url('../images/common-problem/bg.png');
    position: relative;
  }
  .public-banner .copywriting {
    position: absolute;
    left: 50%;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    transform: translate(-50%, -50%);
  }
  .public-banner .copywriting:nth-of-type(1) {
    width: 8.4rem;
    height: 1.86rem;
    top: 3.36rem;
    /* hide cn */
    /* background-image: url('../images/common-problem/copywriting1.png');  */
  }
  .public-banner .copywriting:nth-of-type(2) {
    width: 5.66rem;
    height: 1.94rem;
    top: 4.16rem;
    background-image: url('../images/common-problem/copywriting2.png');
  }
  .public-container {
    margin: 1.2rem auto 3.22rem;
  }
  .question-item {
    width: 47.5%;
    border: 1px solid #E0E0E0;
    padding: 0.54rem 0.74rem 0.7rem 0.62rem;
    box-sizing: border-box;
    margin-bottom: 1rem;
  }
  .question-item:nth-last-of-type(1),
  .question-item:nth-last-of-type(2) {
    margin-bottom: 0;
  }
  .question-item .vertical-red-line {
    width: 5px;
    height: 0.4rem;
    background-color: #FD0000;
    border-radius: 2.5px;
    margin-right: 0.2rem;
  }
  .question-item h3 {
    font-size: 0.36rem;
    font-weight: 500;
    line-height: 0.5rem;
  }
  .question-item p {
    color: #4a4a4a;
    font-size: 0.32rem;
    line-height: 0.72rem;
    margin-top: 0.56rem;
  }
}