.article-body {
  box-sizing: border-box;
  min-height: 10px;
  /* margin-top: calc(100px + 2em); */
  /* border: 1px solid red; */
  /* padding-top: 1em; */
}
@media (min-width: 768px) {
  .article-body { 
    margin-top: calc(100px + 1em);
  }
}

.article-content {
  box-sizing: border-box;
  min-height: 200px;
  max-width: calc(1200px + 2em);
  margin-left: auto;
  margin-right: auto;
  font-size: 16px;
  padding-top: 2em;
  padding-bottom: 2em;
  padding-left: 1em;
  padding-right: 1em;
  /* border: 1px solid darkorange; */
  background-color: #f7f7f7;
}


.article-contain-wrap {
  font-size: 16px;
  line-height: 1.8;
}

.article-header {
  box-sizing: border-box;
  max-width: 1000px;
  padding-top: 2em;
  padding-bottom: 4em;
  padding-left: 1em;
  padding-right: 1em;
  margin-left: auto;
  margin-right: auto;
}

.article-title {
  box-sizing: border-box;
  font-size: 24px;
  line-height: 2.8;
  text-align: center;  
  padding-left: 1em;
  padding-right: 1em;  
  margin-left: auto;
  margin-right: auto;
}

.article-header-hr {
  height: 1px;
  background-color: #c4c4c4;
  margin-top: 2em;
  margin-bottom: 1em;
}

.article-header-info {
  display: flex;
  justify-content: center;
}

.article-info-item{
  box-sizing: border-box;
  padding-left: 3em;
  padding-right: 3em;
  color: #666
}

.article-contain-wrap {
  box-sizing: border-box;
  max-width: 800px;
  padding-bottom: 4em;
  padding-left: 1em;
  padding-right: 1em;
  margin-left: auto;
  margin-right: auto;
}