.qualitell-article{
  max-width:1180px;
  margin:0 auto;
  padding:24px 24px 70px;
  font-family:Arial,"Helvetica Neue","Microsoft YaHei",sans-serif;
  color:#20242a;
}

.qualitell-article h1{
  max-width:980px;
  margin:0 auto 30px;
  font-size:32px;
  line-height:1.35;
  font-weight:700;
  color:#20242a;
}

.qualitell-article h2{
  max-width:920px;
  margin:42px auto 20px;
  font-size:22px;
  line-height:1.45;
  font-weight:700;
  color:#20242a;
}

.qualitell-article p{
  max-width:920px;
  margin:0 auto 26px;
  font-size:17px;
  line-height:1.85;
  color:#444;
}

.qualitell-article > img{
  display:block;
  width:100%;
  max-width:1100px;
  height:auto;
  margin:38px auto;
  border-radius:10px;
}

.qualitell-article .image-grid-2{
  max-width:1100px;
  margin:38px auto;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}

.qualitell-article .image-grid-2 img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:10px;
}

.qualitell-article blockquote{
  max-width:920px;
  margin:30px auto;
  padding:24px 28px;
  background:#f6f8fb;
  border-left:4px solid #0072e7;
  font-size:17px;
  line-height:1.85;
  color:#444;
}

@media(max-width:768px){
  .qualitell-article{
    padding:20px 18px 55px;
  }

  .qualitell-article h1{
    font-size:27px;
  }

  .qualitell-article h2{
    font-size:20px;
  }

  .qualitell-article p,
  .qualitell-article blockquote{
    font-size:16px;
  }
}

@media(max-width:520px){
  .qualitell-article{
    padding:10px 15px 45px;
  }

  .qualitell-article h1{
    font-size:23px;
  }

  .qualitell-article h2{
    margin-top:34px;
    font-size:18px;
  }

  .qualitell-article p{
    font-size:15px;
    line-height:1.8;
  }

  .qualitell-article > img{
    width:calc(100% + 10px);
    margin:30px 0 30px -5px;
    border-radius:6px;
  }

  .qualitell-article .image-grid-2{
    grid-template-columns:1fr;
    gap:12px;
    margin:30px 0;
  }

  .qualitell-article .image-grid-2 img{
    border-radius:6px;
  }

  .qualitell-article blockquote{
    padding:18px 20px;
    font-size:15px;
  }
}