.llx-material-detail-page .llx-material-preview-toolbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 16px 0 22px;
}

.llx-material-detail-page .llx-material-preview-toolbar::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: 0;
  left: 22px;
  height: 1px;
  background: var(--border-color);
}

.llx-material-detail-page .llx-material-preview-title {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  height: 52px;
  font-weight: 500;
}

.llx-material-detail-page .llx-material-preview-title::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--primary);
}

.llx-material-detail-page .llx-material-preview-tools {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
}

.llx-material-detail-page .llx-material-intro {
  margin: 24px 52px 0;
  padding: 13px 15px;
  border-radius: 6px;
  color: var(--text-sub);
  background: var(--bg-soft);
  font-size: 13px;
  line-height: 1.8;
}

.llx-material-detail-page .llx-material-document {
  padding: 32px 52px 60px;
  color: var(--text-main);
  font-size: 14px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.llx-material-detail-page .llx-material-document h2 {
  margin: 24px 0 12px;
  font-size: 16px;
  font-weight: 500;
  scroll-margin-top: calc(var(--llx-header-height, 56px) + 18px);
}

.llx-material-detail-page .llx-material-document h3 {
  margin: 18px 0 10px;
  font-size: 16px;
  font-weight: 500;
  scroll-margin-top: calc(var(--llx-header-height, 56px) + 18px);
}

.llx-material-detail-page .llx-material-document p {
  margin: 1em 0;
}

.llx-material-detail-page .llx-material-document ol,
.llx-material-detail-page .llx-material-document ul {
  padding-left: 40px;
}

.llx-material-detail-page .llx-material-document img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 18px auto;
}

.llx-material-detail-page .llx-material-document table {
  width: 100%;
  margin: 18px 0;
  border-collapse: collapse;
  color: inherit;
  font-size: inherit;
}

.llx-material-detail-page .llx-material-document th,
.llx-material-detail-page .llx-material-document td {
  min-width: 64px;
  padding: 7px;
  border: 1px solid #cbd5e1;
  text-align: left;
  vertical-align: top;
}

.llx-material-detail-page .llx-material-document th {
  background: #f7f9fc;
  text-align: center;
  font-weight: 500;
}

.llx-material-detail-page .llx-material-document-empty {
  padding: 56px 0;
  color: var(--text-light);
  text-align: center;
}

.llx-material-detail-page .llx-material-toc-wrap {
  position: relative;
}

.llx-material-detail-page .llx-material-toc-popover {
  position: fixed;
  display: flex;
  flex-direction: column;
  z-index: 40;
  width: 280px;
  max-width: calc(100vw - 28px);
  max-height: min(420px, calc(100vh - var(--llx-header-height, 56px) - 28px));
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 8px 22px rgba(15, 23, 42, .08);
}

.llx-material-detail-page .llx-material-toc-popover[hidden],
.llx-material-detail-page .llx-material-toc-wrap[hidden] {
  display: none;
}

.llx-material-detail-page .llx-material-toc-head {
  flex-shrink: 0;
  padding: 11px 14px 9px;
  font-size: 13px;
  font-weight: 500;
}

.llx-material-detail-page .llx-material-toc-list {
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding-bottom: 9px;
}

.llx-material-detail-page .llx-material-toc-item {
  display: block;
  width: 100%;
  padding: 7px 14px;
  overflow: hidden;
  border: 0;
  color: var(--text-sub);
  background: #fff;
  font-size: 13px;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.llx-material-detail-page .llx-material-toc-item:hover {
  color: var(--primary);
  background: #f8fafc;
}

.llx-material-detail-page .llx-material-toc-item.is-sub {
  padding-left: 28px;
  color: var(--text-light);
  font-size: 12px;
}

.llx-material-detail-page .llx-material-toc-item.is-active {
  color: var(--primary);
}

.llx-material-detail-page .llx-side-shell {
  position: sticky;
  top: calc(var(--llx-header-height, 56px) + 18px);
  overflow: hidden;
  border-radius: 6px;
  background: #fff;
}

.llx-material-detail-page .llx-side-section {
  position: relative;
  padding: 18px;
}

.llx-material-detail-page .llx-side-section + .llx-side-section::before {
  content: "";
  position: absolute;
  top: 0;
  right: 18px;
  left: 18px;
  height: 1px;
  background: var(--border-color);
}

.llx-material-detail-page .llx-side-section-title {
  margin: 0 0 14px;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
}

.llx-material-detail-page .llx-download-main {
  height: 40px;
}

.llx-material-detail-page .llx-side-secondary-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-top: 9px;
}

.llx-material-detail-page .llx-useful-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  color: var(--text-sub);
  font-size: 13px;
}

.llx-material-detail-page .llx-useful-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 30px;
  padding: 0 10px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-sub);
  background: #fff;
  font-size: 12px;
}

.llx-material-detail-page .llx-useful-btn:hover,
.llx-material-detail-page .llx-useful-btn.is-active {
  color: var(--primary);
  border-color: var(--primary-line, #bfdbfe);
  background: var(--primary-soft);
}

.llx-material-detail-page .llx-useful-btn svg {
  width: 14px;
  height: 14px;
}

.llx-material-detail-page .llx-useful-btn:disabled {
  cursor: wait;
  opacity: .65;
}

.llx-material-detail-page .llx-author-main {
  display: flex;
  align-items: center;
  gap: 11px;
}

.llx-material-detail-page .llx-author-avatar {
  width: 44px;
  height: 44px;
  overflow: hidden;
  flex: none;
  border-radius: 50%;
  background: var(--bg-soft);
}

.llx-material-detail-page .llx-author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.llx-material-detail-page .llx-author-name {
  color: var(--text-main);
  font-weight: 500;
}

.llx-material-detail-page .llx-author-name:hover {
  color: var(--primary);
}

.llx-material-detail-page .llx-author-role,
.llx-material-detail-page .llx-author-stat {
  color: var(--text-light);
  font-size: 12px;
}

.llx-material-detail-page .llx-author-desc {
  margin: 11px 0 0;
  color: var(--text-sub);
  font-size: 12px;
}

.llx-material-detail-page .llx-author-stats {
  display: flex;
  gap: 24px;
  margin-top: 13px;
}

.llx-material-detail-page .llx-author-stat strong {
  display: block;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 500;
}

.llx-material-detail-page .llx-author-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 14px;
}

.llx-material-detail-page .llx-info-list {
  display: grid;
  gap: 10px;
}

.llx-material-detail-page .llx-info-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 8px;
  font-size: 13px;
}

.llx-material-detail-page .llx-info-label {
  color: var(--text-light);
}

.llx-material-detail-page .llx-info-value {
  color: var(--text-sub);
  overflow-wrap: anywhere;
}

.llx-material-detail-page .llx-related-item + .llx-related-item {
  margin-top: 14px;
}

.llx-material-detail-page .llx-related-title {
  display: block;
  color: var(--text-sub);
  font-size: 13px;
  line-height: 1.65;
}

.llx-material-detail-page .llx-related-title:hover {
  color: var(--primary);
}

.llx-material-detail-page .llx-related-meta {
  display: flex;
  gap: 5px;
  margin-top: 4px;
  color: var(--text-light);
  font-size: 12px;
}

.llx-material-detail-page .llx-detail-content-shell:fullscreen {
  overflow: auto;
  background: #fff;
}

@media (max-width: 640px) {
  .llx-material-detail-page .llx-material-preview-toolbar {
    min-height: auto;
    padding: 10px 12px;
  }

  .llx-material-detail-page .llx-material-preview-title {
    height: 36px;
  }

  .llx-material-detail-page .llx-material-intro {
    margin: 20px 20px 0;
  }

  .llx-material-detail-page .llx-material-document {
    padding: 28px 20px 42px;
  }

  .llx-material-detail-page .llx-material-toc-popover {
    position: fixed;
    top: auto;
    right: 14px;
    bottom: 14px;
    left: 14px;
    width: auto;
    max-height: 60vh;
  }
}

@media (max-width: 960px) {
  .llx-material-detail-page .llx-side-shell {
    position: static;
  }
}

/* 与发布编辑器的受控 Markdown 节点保持相同的正文排版。 */
.llx-material-detail-page .llx-material-document [data-align="left"] { text-align: left; }
.llx-material-detail-page .llx-material-document [data-align="center"] { text-align: center; }
.llx-material-detail-page .llx-material-document [data-align="right"] { text-align: right; }
.llx-material-detail-page .llx-material-document figure { margin: 22px auto; text-align: center; }
.llx-material-detail-page .llx-material-document figure img { margin: 0 auto; }
.llx-material-detail-page .llx-material-document figcaption {
  margin-top: 7px;
  color: var(--text-light);
  font-size: 12px;
  text-align: center;
}
.llx-material-detail-page .llx-material-document [data-type="callout"] {
  margin: 16px 0;
  padding: 11px 14px;
  border-left: 3px solid #8bb0fa;
  border-radius: 0 5px 5px 0;
  background: #f4f7fc;
  color: var(--text-sub);
}
.llx-material-detail-page .llx-material-document [data-type="code-block"] {
  margin: 16px 0;
  padding: 13px 15px;
  overflow: auto;
  border: 1px solid #dfe5ed;
  border-radius: 6px;
  background: #f7f9fc;
  color: var(--text-sub);
  font: 13px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
}
.llx-material-detail-page .llx-material-document [data-type="code"] {
  padding: 1px 4px;
  border-radius: 4px;
  background: #eef2f7;
  color: var(--text-sub);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.llx-material-detail-page .llx-material-document [data-type="math-block"] { margin: 16px 0; text-align: center; }
.llx-material-detail-page .llx-material-document [data-type="math-block"] .llx-formula { display: inline-block; margin: 0; }
.llx-material-detail-page .llx-material-document .llx-formula .katex-display { margin: 0; }

.llx-material-detail-page .llx-material-document [data-type="page-break"] {
  margin: 28px 0;
  border-top: 1px solid var(--border-color);
}