.frontier-meta {
  margin-bottom: 1.2rem;
}

.frontier-note {
  color: #555;
}

.frontier-inline-toc {
  display: none;
  margin: 0 0 1.2rem 0;
  padding: 0.8rem 1rem;
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #fafafa;
}

.frontier-inline-toc h3 {
  margin-bottom: 0.45rem;
  font-size: 1rem;
}

.frontier-inline-toc ul {
  margin: 0;
  padding-left: 1rem;
}

.frontier-journal-section,
.frontier-nber-section {
  margin-bottom: 2.1rem;
  scroll-margin-top: 1rem;
}

.frontier-paper {
  margin: 0 0 2rem 0;
  padding: 0 0 1.3rem 0;
  border-bottom: 1px solid #e0e0e0;
}

#main article.frontier-paper {
  display: block;
  float: none;
  width: 100%;
  margin-left: 0;
  margin-right: 0;
  clear: both;
}

.frontier-paper-en-title {
  margin-bottom: 0.55rem;
}

.frontier-paper-cn-title {
  color: #c00000;
  font-weight: 700;
}

.frontier-paper p {
  margin-bottom: 0.7rem;
  text-indent: 0;
}

.frontier-paper p + p {
  margin-top: 0;
  text-indent: 0;
}

.frontier-feedback {
  margin-top: 2.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid #ddd;
}

.frontier-like-btn {
  border: 1px solid #cfcfcf;
  border-radius: 999px;
  background: #fff;
  padding: 0.45rem 1rem;
  margin: 0.3rem 0 1rem 0;
}

.frontier-comment-form label {
  display: block;
  margin-bottom: 0.35rem;
}

.frontier-comment-form textarea {
  width: 100%;
  margin-bottom: 0.6rem;
}

.frontier-comment-form button {
  border: 1px solid #cfcfcf;
  background: #fff;
  padding: 0.4rem 0.9rem;
}

.frontier-comment-list {
  list-style: none;
  padding: 0;
  margin-top: 1rem;
}

.frontier-comment-list li {
  border: 1px solid #e5e5e5;
  border-radius: 6px;
  padding: 0.65rem 0.8rem;
  margin-bottom: 0.6rem;
  background: #fff;
}

.frontier-comment-time {
  display: block;
  color: #777;
  font-size: 0.85rem;
  margin-top: 0.35rem;
}

.frontier-comment-empty {
  color: #777;
  border-style: dashed;
}

.article-author-top .frontier-side-toc,
.article-author-bottom .frontier-side-toc {
  margin-top: 1.1rem;
  padding-top: 0.8rem;
  border-top: 1px dashed #cfcfcf;
}

.article-author-top .frontier-side-toc h5,
.article-author-bottom .frontier-side-toc h5 {
  margin-bottom: 0.45rem;
  font-size: 0.92rem;
}

.article-author-top .frontier-side-toc ul,
.article-author-bottom .frontier-side-toc ul {
  margin: 0;
  padding-left: 1rem;
}

.article-author-top .frontier-side-toc li,
.article-author-bottom .frontier-side-toc li {
  margin: 0.28rem 0;
}

.article-author-top .frontier-side-toc a,
.article-author-bottom .frontier-side-toc a {
  border-bottom: none;
}

@media (max-width: 980px) {
  .frontier-inline-toc {
    display: block;
  }
}