@media (max-width: 768px) {
  .container {
    width: 100%;
  }

  .main {
    padding: 0;
  }

  .main .container {
    padding-top: 0;
  }

  .main .container .main-left {
    width: 100%;
    border-radius: 0px;
  }

  .main .container .main-left .box-item p {
    font-size: 18px;
    line-height: 24px;
  }

  .main .container .main-left .box-item .reply-box .reply-item p {
    font-size: 16px;
    line-height: 22px;
  }

  .main .container .main-right {
    display: none;
  }

  .main .container .main-left .box-item p {
    font-size: 18px;
    line-height: 24px;
  }

  .main .container .main-left .box-item .reply-box .reply-item p {
    font-size: 16px;
    line-height: 22px;
  }

  .main .container .main-left .header {
    padding-bottom: 10px;
  }

  .main .container .main-left .header h1 {
    font-size: 18px;
  }

  footer {
    width: 100%;
    padding: 15px 10px;
  }

  header .container {
    margin: 0;
  }

  header .container .content .left {
    width: 100%;
  }

  header .container .content .right {
    display: none;
  }

  header .container .content .left h1 {
    font-size: 22px;
    margin-top: 10px;
  }

  header .container .tags {
    flex-wrap: wrap;
  }

  header .container .tags .tag {
    width: 50%;
    margin: 0;
  }

  header .container .tags .tag:nth-child(1),
  header .container .tags .tag:nth-child(2) {
    margin-bottom: 10px;
  }
}