/* 用于资讯文章详情与资讯栏目列表；在 articles.css、header-layout.css 之后加载。 */
#help-page:is(.hdd-article-detail, .hdd-article-list-page) {
  --hdd-detail-rail: 360px;
  --hdd-detail-gap: 40px;
  --hdd-detail-sticky-top: calc(var(--header-height, 68px) + 20px);
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-wrap {
  max-width: 1320px;
  padding: 28px 20px 64px;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-reading-layout {
  grid-template-columns: minmax(0, 1fr) var(--hdd-detail-rail);
  gap: var(--hdd-detail-gap);
  align-items: start;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-content-layout .hdd-article-paper {
  padding: 32px 24px;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side {
  position: sticky;
  top: var(--hdd-detail-sticky-top);
  align-self: start;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
/* 不设置独立滚动条：超过屏幕的右栏内容，会在文章末尾随整栏继续上移。 */
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-promos {
  display: grid;
  gap: 20px;
  margin: 0;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-promos a {
  display: block;
  border-radius: 8px;
  background: #eef5ff;
  transition: box-shadow .18s;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-promos a:hover {
  box-shadow: 0 5px 18px #253d6714;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-promos a:focus-visible {
  outline: 3px solid #318ffc;
  outline-offset: 4px;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-promos img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 18 / 5;
  border-radius: 8px;
}
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-editorial-rail {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 0;
}
/* 三张产品推广图承接原来的 ERP 推广卡，避免重复占据右栏。 */
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-rail-service { display: none; }
/* 资讯右栏只保留产品推荐和最新文章。 */
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-rail-card:has(.hdd-rail-categories) { display: none; }
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-rail-card { padding: 20px; }
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-rail-stories h3 { font-size: 14px; line-height: 1.7; }
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-rail-stories li { padding: 13px 0; }
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-rail-stories li:last-child { padding-bottom: 0; }
#help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-after {
  width: calc(100% - var(--hdd-detail-rail) - var(--hdd-detail-gap));
  min-width: 0;
}
@media (min-width: 821px) and (max-width: 1199px) {
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) { --hdd-detail-rail: 280px; --hdd-detail-gap: 24px; }
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-content-layout .hdd-article-paper { padding: 28px 24px; }
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-rail-card { padding: 18px 16px; }
}
@media (max-width: 820px) {
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-wrap { padding: 20px 20px 40px; }
  #help-page.hdd-article-detail .hdd-article-wrap { display: flex; flex-direction: column; gap: 20px; }
  #help-page.hdd-article-list-page .hdd-article-reading-layout { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  #help-page.hdd-article-detail .hdd-editorial-crumbs { margin: 0; }
  #help-page.hdd-article-detail .hdd-article-reading-layout { display: contents; }
  #help-page.hdd-article-detail .hdd-content-primary { order: 1; }
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side { position: static; order: 3; }
  #help-page.hdd-article-detail .hdd-article-after { width: 100%; order: 2; }
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-content-layout .hdd-article-paper { padding: 24px 20px; }
}
@media (max-width: 560px) {
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-article-side .hdd-editorial-rail { display: flex; }
  #help-page:is(.hdd-article-detail, .hdd-article-list-page) .hdd-content-layout .hdd-article-title { font-size: 23px; line-height: 1.55; }
}