/* 泛普知识栏目/详情页布局 v7：严格按“模版调整2026_7_30”执行 */
:root {
  --knowledge-primary: #0089FF;
  --knowledge-primary-dark: #006fce;
  --knowledge-primary-soft: #eaf5ff;
  --knowledge-navy: #14243d;
  --knowledge-ink: #243247;
  --knowledge-body: #526176;
  --knowledge-muted: #8591a3;
  --knowledge-border: #e5eaf0;
  --knowledge-surface: #ffffff;
  --knowledge-page: #f6f8fb;
  --knowledge-shell-width: 1440px;
  --knowledge-radius: 8px;
  --knowledge-shadow: 0 8px 28px rgba(27, 56, 91, .06);
}

.knowledge-page,
.knowledge-page * { box-sizing: border-box; }

.knowledge-page {
  min-height: 100vh;
  padding-top: 80px;
  background: var(--knowledge-page);
  color: var(--knowledge-body);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.75;
  overflow-wrap: anywhere;
}

/* The public header is transparent on the about page; news pages use a solid reading header. */
.fheader.transparent,
.fx-header.transparent { background: #fff; box-shadow: 0 1px 8px rgba(24, 38, 58, .07); }

.knowledge-shell {
  width: min(calc(100% - 40px), var(--knowledge-shell-width));
  margin-right: auto;
  margin-left: auto;
}

.knowledge-content-shell { padding: 38px 0 72px; overflow: visible; }

.knowledge-breadcrumb {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: #9aa4b2;
  font-size: 13px;
  line-height: 22px;
}

.knowledge-page-hero .knowledge-breadcrumb span{color: rgba(255,255,255,.76);}
.knowledge-page-hero .knowledge-breadcrumb a,
.knowledge-page-hero .knowledge-back-link a { color: rgba(255,255,255,.76); text-decoration: none; }
.knowledge-page-hero .knowledge-breadcrumb a:hover,
.knowledge-page-hero .knowledge-back-link a:hover { color: var(--knowledge-primary); }

.knowledge-breadcrumb a,
.knowledge-back-link a { color: #6f7d90; text-decoration: none; }
.knowledge-breadcrumb a:hover,
.knowledge-back-link a:hover { color: var(--knowledge-primary); }

/* List masthead */
.knowledge-page-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid #e8edf3;
  background: linear-gradient(112deg, #f2f8ff 0%, #fff 54%, #f4f9ff 100%);
  min-height: 250px;
}
.knowledge-page-hero::before {
    position: absolute;
    content: "";
    inset: 0px;
    background: rgba(10, 44, 81, 0.78);
}
.knowledge-page-hero::after {
  position: absolute;
  top: -100px;
  right: 6%;
  width: 380px;
  height: 260px;
  border: 70px solid rgba(8, 120, 229, .04);
  border-radius: 50%;
  content: "";
}

.knowledge-hero-inner { position: relative; z-index: 1; min-height: 224px; padding: 28px 0 38px; }
.knowledge-page-hero .knowledge-breadcrumb { margin-bottom: 34px; }
.knowledge-page-hero h1 {
  margin: 0;
  color: var(--knowledge-surface);
  font-size: clamp(30px, 3vw, 40px);
  font-weight: 600;
  line-height: 1.3;
}
.knowledge-column-description { max-width: 700px; margin-top: 11px; color: rgba(255, 255, 255, 0.76);
; font-size: 15px; }
.knowledge-column-description:empty { display: none; }

/* Shared panel styling */
.knowledge-sidebar { min-width: 0; }
.knowledge-sidebar-card {
  margin: 0 0 20px;
  overflow: hidden;
  border: 1px solid var(--knowledge-border);
  border-radius: var(--knowledge-radius);
  background: var(--knowledge-surface);
  box-shadow: 0 3px 15px rgba(32, 60, 91, .025);
}

.knowledge-sidebar-card > h2,
.knowledge-rank-card > h2,
.knowledge-extension-reading > h2 {
  position: relative;
  margin: 0;
  padding: 15px 18px 14px;
  border-bottom: 1px solid #E5EAF0;
  background: #F4F8FC;
  color: var(--knowledge-navy);
  font-size: 17px;
  font-weight: 600;
  line-height: 25px;
}

.knowledge-sidebar-card > h2::before,
.knowledge-rank-card > h2::before,
.knowledge-extension-reading > h2::before {
  display: none;
}

.knowledge-sidebar-card-body { padding: 7px 18px 11px; }
.knowledge-sidebar-card-body > :first-child { margin-top: 0; }
.knowledge-sidebar-card-body > :last-child { margin-bottom: 0; }

/* The two list-page left panels move together; only the category content scrolls. */
.knowledge-category-sidebar {
  position: sticky;
  top: 96px;
  z-index: 2;
  min-width: 0;
  max-height: calc(100vh - 112px);
  padding-right: 2px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  align-self: start;
}
.knowledge-category-sidebar > .knowledge-category-panel:first-of-type {
  position: static;
}
.knowledge-category-panel > .knowledge-category-nav {
  max-height: 225px;
  padding: 11px 12px 15px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}
.knowledge-category-nav ul { margin: 0; padding: 0; list-style: none; }
.knowledge-category-nav ul ul { position: relative; margin-left: 11px; padding-left: 10px; }
.knowledge-category-nav ul ul::before { position: absolute; top: 5px; bottom: 5px; left: 0; width: 1px; background: #edf0f4; content: ""; }
.knowledge-category-nav li { min-width: 0; }
.knowledge-category-nav li + li { margin-top: 1px; }
.knowledge-category-nav a {
  display: block;
  overflow: hidden;
  padding: 7px 9px;
  border-radius: 5px;
  color: #5d6b7d;
  font-size: 14px;
  line-height: 21px;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.knowledge-category-nav a:hover,
.knowledge-category-nav a:focus-visible { background: #f3f8fd; color: var(--knowledge-primary); }
.knowledge-category-nav .is-current > a,
.knowledge-category-nav .active > a { background: var(--knowledge-primary-soft); color: var(--knowledge-primary); font-weight: 600; }
.knowledge-category-toggle { display: none; }

.knowledge-sidebar-callout {
  position: relative;
  overflow: hidden;
  padding: 22px 18px;
  border-radius: var(--knowledge-radius);
  background: linear-gradient(135deg, #075fb5, #0e8bf1);
  box-shadow: 0 10px 24px rgba(8, 120, 229, .15);
  color: #fff;
}
.knowledge-sidebar-callout::after { position: absolute; right: -28px; bottom: -48px; width: 110px; height: 110px; border: 22px solid rgba(255,255,255,.08); border-radius: 50%; content: ""; }
.knowledge-sidebar-callout span,
.knowledge-sidebar-callout strong { position: relative; z-index: 1; display: block; }
.knowledge-sidebar-callout span { color: rgba(255,255,255,.72); font-size: 12px; }
.knowledge-sidebar-callout strong { margin: 4px 0 16px; font-size: 16px; font-weight: 600; }
.knowledge-sidebar-callout a { position: relative; z-index: 1; display: inline-block; padding: 6px 14px; border: 1px solid rgba(255,255,255,.42); border-radius: 20px; color: #fff; font-size: 13px; text-decoration: none; }
.knowledge-sidebar-callout a:hover { border-color: #fff; background: #fff; color: var(--knowledge-primary-dark); }

/* A concise contact card keeps support details available without competing with the article. */
.knowledge-contact-card { margin: 20px 0 0; padding: 0 0 16px; border-top: 2px solid #f04a42; color: #2f3e51; }
.knowledge-contact-card h2 { margin: 0; padding: 11px 0 8px; border-bottom: 1px solid #ccd5df; color: #ef3f37; font-size: 17px; font-weight: 600; line-height: 1.4; }
.knowledge-contact-card p { margin: 11px 0 0; font-size: 14px; line-height: 1.75; }
.knowledge-contact-card strong { color: #263548; font-weight: 600; }
.knowledge-contact-phone { margin-top: 15px !important; color: #ef3f37; font-size: 14px !important; }
.knowledge-contact-phone a { color: #ef3f37; font-size: 20px; letter-spacing: .03em; text-decoration: none; }
.knowledge-contact-tip { color: #ef3f37; font-weight: 600; font-size: 14px;}
.knowledge-contact-qr { display: block; width: 100%; max-width: 164px; height: auto; margin: 9px auto 12px; }
.knowledge-contact-action { display: flex; min-height: 34px; align-items: center; justify-content: center; border: 1px solid #cbd7e2; border-radius: 4px; background: #f4f7fa; color: #526176; font-size: 14px; text-decoration: none; }
.knowledge-contact-action:hover { border-color: #9bbce0; background: #eaf4fd; color: var(--knowledge-primary); }

.knowledge-contact-box{padding:10px;font-size:14px;}
.knowledge-contact-box strong{display: block;}


/* Article listing */
.knowledge-list-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr) 320px; gap: 24px; align-items: start; overflow: visible; }
.knowledge-list-main { min-width: 0; padding: 28px 30px 32px; border: 1px solid var(--knowledge-border); border-radius: var(--knowledge-radius); background: #fff; box-shadow: var(--knowledge-shadow); }
.knowledge-section-heading { padding: 0 0 15px; border-bottom: 1px solid #dbe2e9; }
.knowledge-section-heading h2 { margin: 0; color: var(--knowledge-navy); font-size: 24px; font-weight: 600; line-height: 1.35; }
.knowledge-article-list { display: grid; }
.knowledge-article-card { border-bottom: 1px solid var(--knowledge-border); }
.knowledge-article-card-link { display: grid; grid-template-columns: 202px minmax(0, 1fr); gap: 23px; align-items: center; padding: 24px 0; color: inherit; text-decoration: none; }
.knowledge-article-cover-wrap { position: relative; aspect-ratio: 4 / 2.65; overflow: hidden; border-radius: 6px; background: #eaf2fa; }
.knowledge-article-cover { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.knowledge-article-card-link:hover .knowledge-article-cover { transform: scale(1.035); }
.knowledge-article-card-body { min-width: 0; }
.knowledge-article-meta,
.knowledge-detail-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; color: var(--knowledge-muted); font-size: 13px; }
.knowledge-article-meta span { color: var(--knowledge-primary); }
.knowledge-article-card h3 { display: -webkit-box; overflow: hidden; margin: 7px 0 8px; color: var(--knowledge-ink); font-size: 19px; font-weight: 600; line-height: 1.5; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.knowledge-article-card-link:hover h3,
.knowledge-article-card-link:focus-visible h3 { color: var(--knowledge-primary); }
.knowledge-article-summary { display: -webkit-box; overflow: hidden; margin: 0 0 10px; color: #788496; font-size: 14px; line-height: 1.75; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.knowledge-read-more { color: #728095; font-size: 13px; }
.knowledge-read-more b { margin-left: 3px; color: var(--knowledge-primary); font-weight: 400; }
.knowledge-article-card-link:hover .knowledge-read-more { color: var(--knowledge-primary); }
.knowledge-empty-state { display: none; padding: 70px 20px; color: var(--knowledge-muted); text-align: center; }
.knowledge-article-list:empty + .knowledge-empty-state { display: block; }

/* Side article lists work with simple CMS ul/li output. */
.knowledge-link-list,
.knowledge-sidebar-card-body > ul { margin: 0; padding: 0; list-style: none; counter-reset: knowledge-rank; }
.knowledge-link-list li,
.knowledge-sidebar-card-body > ul > li { position: relative; padding: 12px 0 12px 30px; border-bottom: 1px dashed #e6ebf0; counter-increment: knowledge-rank; }
.knowledge-link-list li:last-child,
.knowledge-sidebar-card-body > ul > li:last-child { border-bottom: 0; }
.knowledge-link-list li::before,
.knowledge-sidebar-card-body > ul > li::before { position: absolute; top: 12px; left: 0; width: 21px; height: 21px; border-radius: 4px; background: #f0f3f7; color: #7d8a9a; content: counter(knowledge-rank); font-size: 12px; font-weight: 600; line-height: 21px; text-align: center; font-size: 16px;}
.knowledge-link-list li:nth-child(-n+3)::before,
.knowledge-sidebar-card-body > ul > li:nth-child(-n+3)::before { background: var(--knowledge-primary-soft); color: var(--knowledge-primary); }
.knowledge-link-list a,
.knowledge-sidebar-card-body > ul > li > a { display: -webkit-box; overflow: hidden; color: #4f5d70; font-size: 14px; line-height: 1.65; text-decoration: none; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.knowledge-link-list a:hover,
.knowledge-sidebar-card-body > ul > li > a:hover { color: var(--knowledge-primary); }
.knowledge-reading-sidebar,
.knowledge-detail-sidebar { position: static; min-width: 0; }

/* Wider sidebars: allow two-line labels without forcing overly narrow text. */
.knowledge-reading-sidebar .knowledge-sidebar-card-body,
.knowledge-detail-sidebar .knowledge-sidebar-card-body { padding-right: 20px; padding-left: 20px; }
.knowledge-category-nav a { white-space: normal; overflow-wrap: break-word; }


.knowledge-pagination { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 30px; }
.knowledge-pagination a,
.knowledge-pagination span { display: inline-flex; min-width: 36px; height: 36px; align-items: center; justify-content: center; padding: 0 11px; border: 1px solid var(--knowledge-border); border-radius: 5px; background: #fff; color: #657286; font-size: 13px; text-decoration: none; }
.knowledge-pagination a:hover,
.knowledge-pagination .current,
.knowledge-pagination .selected { border-color: var(--knowledge-primary); background: var(--knowledge-primary); color: #fff; }

/* Article detail */
.knowledge-detail-topline { border-bottom: 1px solid var(--knowledge-border); background: #fff; }
.knowledge-detail-topline .knowledge-shell { padding: 17px 0; }
.knowledge-detail-page .knowledge-content-shell { padding-top: 36px; }
/* The directory, article and reading sidebar now share one in-shell grid. */
.knowledge-detail-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr) 320px; gap: 24px; align-items: start; overflow: visible; }
.knowledge-toc-float {
  position: sticky;
  top: 96px;
  z-index: 2;
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
  max-height: calc(100vh - 112px);
  padding-right: 2px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  align-self: start;
}
.knowledge-toc-card { margin: 0 0 20px; overflow: hidden; border: 1px solid var(--knowledge-border); border-radius: var(--knowledge-radius); background: #fff; box-shadow: 0 3px 15px rgba(32,60,91,.025); }
.knowledge-toc-titlebar { display: flex; min-height: 55px; align-items: center; justify-content: space-between; gap: 8px; padding: 0 14px 0 18px; border-bottom: 1px solid #E5EAF0; background: #F4F8FC; }
.knowledge-toc-titlebar h2 { position: relative; margin: 0; color: var(--knowledge-navy); font-size: 17px; font-weight: 600; line-height: 24px; }
.knowledge-toc-titlebar h2::before { display: none; }
.knowledge-toc-toggle { flex: 0 0 auto; padding: 2px 0; border: 0; background: transparent; color: #8c97a5; cursor: pointer; font: inherit; font-size: 12px; }
.knowledge-toc-toggle:hover,
.knowledge-toc-toggle:focus-visible { color: var(--knowledge-primary); }
.knowledge-toc-panel {
  max-height: 225px;
  padding: 12px 15px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}
.knowledge-toc-panel ol { margin: 0; padding: 0; }
.knowledge-toc-panel li { padding: 7px 0 7px 2px; color: #b1bac5; font-size: 12px; line-height: 1.6; }
.knowledge-toc-panel a { display: block; overflow: hidden; color: #5d6a7d; font-size: 13px; text-decoration: none; text-overflow: ellipsis; white-space: nowrap; }
.knowledge-toc-panel a:hover { color: var(--knowledge-primary); }

.knowledge-category-sidebar,
.knowledge-toc-float,
.knowledge-category-nav,
.knowledge-toc-panel { scrollbar-width: thin; scrollbar-color: #c6d3df transparent; }
.knowledge-category-sidebar::-webkit-scrollbar,
.knowledge-toc-float::-webkit-scrollbar,
.knowledge-category-nav::-webkit-scrollbar,
.knowledge-toc-panel::-webkit-scrollbar { width: 6px; }
.knowledge-category-sidebar::-webkit-scrollbar-thumb,
.knowledge-toc-float::-webkit-scrollbar-thumb,
.knowledge-category-nav::-webkit-scrollbar-thumb,
.knowledge-toc-panel::-webkit-scrollbar-thumb { border-radius: 6px; background: #c6d3df; }
.knowledge-category-sidebar::-webkit-scrollbar-track,
.knowledge-toc-float::-webkit-scrollbar-track,
.knowledge-category-nav::-webkit-scrollbar-track,
.knowledge-toc-panel::-webkit-scrollbar-track { background: transparent; }
.knowledge-toc-float.is-toc-collapsed .knowledge-toc-card { overflow: visible; border: 0; background: transparent; box-shadow: none; }
.knowledge-toc-float.is-toc-collapsed .knowledge-toc-titlebar { min-height: 0; padding: 0; border: 0; background: transparent; }
.knowledge-toc-float.is-toc-collapsed .knowledge-toc-titlebar h2,
.knowledge-toc-float.is-toc-collapsed .knowledge-toc-panel { display: none; }
.knowledge-toc-float.is-toc-collapsed .knowledge-toc-toggle { width: 100%; padding: 10px 12px; border: 1px solid #cfe1f2; border-radius: 6px; background: #fff; box-shadow: 0 4px 14px rgba(32,60,91,.05); color: var(--knowledge-primary); font-size: 13px; text-align: center; }

.knowledge-detail-main { grid-column: 2; grid-row: 1; min-width: 0; padding: 40px 44px 46px; border: 1px solid var(--knowledge-border); border-radius: var(--knowledge-radius); background: #fff; box-shadow: var(--knowledge-shadow); }
.knowledge-detail-header { padding-bottom: 24px; border-bottom: 1px solid var(--knowledge-border); text-align: center; }
.knowledge-detail-header h1 { margin: 0; color: #18263a; font-size: clamp(28px, 2.5vw, 36px); font-weight: 600; line-height: 1.42; }
.knowledge-detail-meta { justify-content: center; margin-top: 17px; font-size: 13px; }
.knowledge-detail-lead { margin: 25px 0 28px; padding: 16px 19px; border-left: 3px solid var(--knowledge-primary); background: #f4f8fc; color: #657286; font-size: 15px; line-height: 1.85; }
.knowledge-detail-lead:empty { display: none; }
.knowledge-article-content { color: #39475a; font-size: 16px; line-height: 2; }
.knowledge-article-content > :first-child { margin-top: 0; }
.knowledge-article-content h2,
.knowledge-article-content h3,
.knowledge-article-content h4 { scroll-margin-top: 110px; color: var(--knowledge-navy); font-weight: 600; line-height: 1.5; }
.knowledge-article-content h2 { position: relative; margin: 36px 0 16px; padding-left: 13px; font-size: 24px; }
.knowledge-article-content h2::before { position: absolute; top: 7px; bottom: 7px; left: 0; width: 3px; border-radius: 2px; background: var(--knowledge-primary); content: ""; }
.knowledge-article-content h3 { margin: 28px 0 13px; font-size: 20px; }
.knowledge-article-content h4 { margin: 24px 0 11px; font-size: 18px; }
.knowledge-article-content p { margin: 0 0 1.15em; }
.knowledge-article-content a { color: var(--knowledge-primary); }
.knowledge-article-content img,
.knowledge-article-content video,
.knowledge-article-content iframe { display: block; max-width: 100%; height: auto; margin: 24px auto; }
.knowledge-article-content iframe { width: 100%; min-height: 360px; }
.knowledge-article-content table { display: block; width: 100%; max-width: 100%; margin: 22px 0; overflow-x: auto; border-collapse: collapse; }
.knowledge-article-content th,
.knowledge-article-content td { min-width: 110px; padding: 9px 12px; border: 1px solid #dfe5ec; text-align: left; }
.knowledge-article-content th { background: #f3f7fa; }
.knowledge-article-content blockquote { margin: 22px 0; padding: 14px 18px; border-left: 3px solid #b9d9f5; background: #f7fafc; color: #647286; }
.knowledge-article-content pre { overflow-x: auto; padding: 16px; border-radius: 6px; background: #f3f5f7; }
.knowledge-article-content code { overflow-wrap: anywhere; white-space: pre-wrap; }

.knowledge-extension-reading { margin-top: 30px; padding-top: 22px; border-top: 1px solid #dbe2e9; }
.knowledge-extension-reading > h2 { margin: 0; padding: 0 0 12px; border: 0; background: transparent; color: var(--knowledge-navy); font-size: 18px; }
.knowledge-extension-body { padding: 0; }
.knowledge-extension-body .knowledge-link-list { border-top: 1px solid #e5eaf0; }
.knowledge-extension-body .knowledge-link-list li { padding-top: 11px; padding-bottom: 11px; }
.knowledge-prev-next { display: grid; gap: 9px; margin-top: 30px; padding: 20px 0; border-top: 1px solid var(--knowledge-border); border-bottom: 1px solid var(--knowledge-border); }
.knowledge-prev-next div { display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 12px; color: var(--knowledge-muted); font-size: 14px; }
.knowledge-prev-next a { overflow: hidden; color: #536176; text-decoration: none; text-overflow: ellipsis; white-space: nowrap; }
.knowledge-prev-next a:hover { color: var(--knowledge-primary); }
.knowledge-back-link { margin-top: 20px; font-size: 14px; }
.knowledge-back-to-top { position: fixed; right: 24px; bottom: 26px; z-index: 30; display: inline-flex; min-width: 54px; height: 54px; flex-direction: column; align-items: center; justify-content: center; padding: 3px; border: 1px solid #d7e4ef; border-radius: 8px; background: rgba(255,255,255,.96); box-shadow: 0 7px 22px rgba(26, 54, 85, .13); color: #667487; cursor: pointer; font: inherit; font-size: 11px; line-height: 1.25; }
.knowledge-back-to-top span { color: var(--knowledge-primary); font-size: 19px; line-height: 18px; }
.knowledge-back-to-top:hover { border-color: #bad7ef; color: var(--knowledge-primary); }
.knowledge-back-to-top[hidden] { display: none; }

.knowledge-detail-sidebar { grid-column: 3; grid-row: 1; }


@media (max-width: 1399px) {
  .knowledge-list-layout { grid-template-columns: 250px minmax(0, 1fr); gap: 22px; }
  .knowledge-category-sidebar { grid-column: 1; grid-row: 1 / span 2; }
  .knowledge-reading-sidebar { grid-column: 2; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .knowledge-reading-sidebar .knowledge-sidebar-card { margin-bottom: 0; }
  .knowledge-detail-layout { grid-template-columns: 250px minmax(0, 1fr); gap: 22px; }
  .knowledge-toc-float { grid-column: 1; grid-row: 1 / span 2; }
  .knowledge-detail-main { grid-column: 2; grid-row: 1; }
  .knowledge-detail-sidebar { grid-column: 2; grid-row: 2; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .knowledge-detail-sidebar .knowledge-sidebar-card { margin-bottom: 0; }
}

@media (max-width: 900px) {
  /* 单列模式使用 flex 顺序，让联系方式移动到全部正文与推荐内容之后。 */
  .knowledge-list-layout,
  .knowledge-detail-layout {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  /*
   * display: contents 只展开侧栏的视觉盒子，不改变其 DOM 结构；
   * 因此栏目/目录与联系方式可以在手机端分别排序。
   */
  .knowledge-category-sidebar,
  .knowledge-toc-float {
    display: contents;
    position: static;
    top: auto;
    z-index: auto;
    max-height: none;
    padding-right: 0;
    overflow: visible;
  }

  .knowledge-category-toggle {
    order: 1;
    display: flex;
    width: 100%;
    min-height: 46px;
    align-items: center;
    justify-content: space-between;
    padding: 9px 15px;
    border: 1px solid #d5e5f3;
    border-radius: 7px;
    background: #fff;
    color: var(--knowledge-ink);
    cursor: pointer;
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    text-align: left;
  }
  .knowledge-category-toggle::after { color: var(--knowledge-primary); content: "+"; font-size: 20px; font-weight: 400; }
  .knowledge-category-toggle[aria-expanded="true"]::after { content: "−"; }

  .knowledge-category-sidebar > #knowledge-list-category-panel {
    order: 2;
    margin-top: 8px;
  }
  .knowledge-list-main { order: 3; }
  .knowledge-reading-sidebar { order: 4; }
  .knowledge-category-sidebar > .knowledge-contact-panel {
    order: 5;
    margin-top: 24px;
    margin-bottom: 0;
  }

  .knowledge-toc-float > .knowledge-toc-card {
    order: 1;
    margin-bottom: 20px;
  }
  .knowledge-detail-main { order: 2; }
  .knowledge-detail-sidebar { order: 3; }
  .knowledge-toc-float > .knowledge-contact-panel {
    order: 4;
    margin-top: 24px;
    margin-bottom: 0;
  }

  .knowledge-category-panel > .knowledge-category-nav,
  .knowledge-toc-panel { max-height: min(225px, 55vh); }

  .knowledge-sidebar-callout { display: none; }
  .knowledge-contact-card { max-width: 360px; }
  .knowledge-toc-float.is-toc-collapsed .knowledge-toc-card { margin-bottom: 10px; }

  .knowledge-reading-sidebar,
  .knowledge-detail-sidebar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 24px;
  }
}

@media (max-width: 767px) {
  .knowledge-page { padding-top: 60px; }
  .knowledge-shell { width: min(calc(100% - 24px), var(--knowledge-shell-width)); }
  .knowledge-content-shell { padding: 22px 0 46px; }
  .knowledge-hero-inner { min-height: 182px; padding: 20px 0 28px; }
  .knowledge-page-hero .knowledge-breadcrumb { margin-bottom: 25px; }
  .knowledge-page-hero h1 { font-size: 28px; }
  .knowledge-column-description { margin-top: 8px; font-size: 14px; color: rgba(255,255,255,.76);}
  .knowledge-list-main { padding: 22px 16px 25px; }
  .knowledge-section-heading { align-items: flex-start; }
  .knowledge-section-heading h2 { font-size: 21px; }
  .knowledge-section-heading > span { display: none; }
  .knowledge-article-card-link { grid-template-columns: 132px minmax(0, 1fr); gap: 13px; padding: 18px 0; }
  .knowledge-article-card h3 { margin: 5px 0; font-size: 16px; line-height: 1.45; -webkit-line-clamp: 3; }
  .knowledge-article-summary { display: none; }
  .knowledge-read-more { font-size: 12px; }
  .knowledge-reading-sidebar,
  .knowledge-detail-sidebar { display: block; }
  .knowledge-reading-sidebar .knowledge-sidebar-card,
  .knowledge-detail-sidebar .knowledge-sidebar-card { margin-bottom: 16px; }
  .knowledge-detail-topline .knowledge-shell { padding: 13px 0; }
  .knowledge-detail-page .knowledge-content-shell { padding-top: 18px; }
  .knowledge-detail-main { padding: 26px 18px 30px; }
  .knowledge-detail-header h1 { font-size: 26px; }
  .knowledge-detail-meta { gap: 4px 12px; }
  .knowledge-detail-lead { margin: 22px 0 24px; padding: 14px 15px; font-size: 14px; }
  .knowledge-article-content { font-size: 16px; line-height: 1.9; }
  .knowledge-article-content h2 { margin-top: 30px; font-size: 22px; }
  .knowledge-article-content h3 { font-size: 19px; }
  .knowledge-article-content iframe { min-height: 220px; }
  .knowledge-back-to-top { right: 14px; bottom: 18px; }
}

@media (max-width: 480px) {
  .knowledge-article-card-link { grid-template-columns: 112px minmax(0, 1fr); }
  .knowledge-article-meta span { display: none; }
  .knowledge-article-card h3 { font-size: 15px; }
  .knowledge-detail-main { padding-right: 15px; padding-left: 15px; }
  .knowledge-detail-header h1 { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .knowledge-article-cover { transition: none; }
}


/* ===== v7 document-specific overrides ===== */
/* Stronger banner graphic, replacing the previous pale decorative background. */
.knowledge-page-hero {
  background-color: #e7f4ff;
  background-image: linear-gradient(90deg, rgba(242,249,255,.97) 0%, rgba(232,246,255,.94) 48%, rgba(207,233,255,.82) 100%), url("/skin/knowledge-banner.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
.knowledge-page-hero::after { display: none; }
.knowledge-hero-inner { min-height: 340px; padding: 24px 0 34px; }
.knowledge-page-hero .knowledge-breadcrumb { margin-bottom: 22px; }
.knowledge-hero-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 54px; align-items: center; }
.knowledge-hero-copy { min-width: 0; padding: 20px 0 28px; }
.knowledge-column-description { max-width: 760px; color: rgba(255,255,255,.76); }

/* Sidebar/category titles use the requested unified blue and white. */
.knowledge-sidebar-card > h2,
.knowledge-rank-card > h2,
.knowledge-toc-titlebar {
  border-bottom-color: #0089FF;
  background: #0089FF;
  color: #fff;
}
.knowledge-sidebar-card > h2,
.knowledge-rank-card > h2 { border-radius: 7px 7px 0 0; }
.knowledge-category-root-link,
.knowledge-sidebar-card > h2 a { color: #fff; text-decoration: none; }
.knowledge-category-root-link:hover,
.knowledge-category-root-link:focus-visible,
.knowledge-sidebar-card > h2 a:hover { color: #fff; opacity: .9; }
.knowledge-toc-titlebar h2 { color: #fff; }
.knowledge-toc-toggle { color: rgba(255,255,255,.88); }
.knowledge-toc-toggle:hover,
.knowledge-toc-toggle:focus-visible { color: #fff; }

/* List-page left column: no sticky positioning and no internal height cap. */
.knowledge-list-page .knowledge-category-sidebar {
  position: static;
  top: auto;
  z-index: auto;
  max-height: none;
  padding-right: 0;
  overflow: visible;
  scrollbar-gutter: auto;
  align-self: start;
}
.knowledge-list-page .knowledge-category-panel > .knowledge-category-nav {
  max-height: none;
  overflow: visible;
  scrollbar-gutter: auto;
}

/* Category tree branch toggle. Existing hierarchy is preserved. */
.knowledge-category-nav .knowledge-category-tree[hidden] { display: none; }
.knowledge-category-nav li.has-children { position: relative; }
.knowledge-tree-toggle {
  position: absolute;
  top: 8px;
  left: 2px;
  z-index: 1;
  width: 20px;
  height: 20px;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: #45677f;
  cursor: pointer;
  font: 600 15px/20px Arial, sans-serif;
  text-align: center;
}
.knowledge-tree-toggle:hover,
.knowledge-tree-toggle:focus-visible { background: #eaf5ff; color: #0089FF; outline: none; }
.knowledge-tree-toggle + a { padding-left: 28px; }
.knowledge-category-nav .is-current > a { border-left: 3px solid #0089FF; background: #eaf5ff; color: #0089FF; }

/* Column content comes first; terminal-class articles follow at the bottom. */
.knowledge-class-overview { padding: 24px 0 4px; }
.knowledge-class-overview-content { color: #44546a; font-size: 16px; line-height: 1.95; }
.knowledge-class-overview-content img,
.knowledge-class-overview-content video,
.knowledge-class-overview-content iframe { max-width: 100%; height: auto; }
.knowledge-terminal-articles { margin-top: 34px; padding-top: 28px; border-top: 1px solid var(--knowledge-border); }
.knowledge-section-heading--articles h2 { font-size: 22px; }

/* Hero and page-bottom lead forms. */
.knowledge-hero-form-card {
  overflow: hidden;
  padding: 25px 25px 24px;
  border: 1px solid rgba(0,137,255,.2);
  border-radius: 12px;
  background: rgba(255,255,255,.96);
  box-shadow: 0 18px 45px rgba(0,92,172,.14);
}
.knowledge-feedback-eyebrow { color: #0089FF; font-size: 13px; font-weight: 600; letter-spacing: .04em; }
.knowledge-hero-form-card h2 { margin: 5px 0 5px; color: #14243d; font-size: 21px; line-height: 1.45; }
.knowledge-hero-form-card > p { margin: 0 0 15px; color: #6d7c8f; font-size: 13px; line-height: 1.65; }
.knowledge-feedback-form { margin: 0; }
.knowledge-feedback-field { display: block; margin: 0 0 11px; }
.knowledge-feedback-field > span { display: block; margin-bottom: 5px; color: #405167; font-size: 13px; }
.knowledge-feedback-field.is-required > span::before,
.knowledge-feedback-inline-field.is-required > span::before { margin-right: 3px; color: #f04444; content: "*"; }
.knowledge-feedback-form input,
.knowledge-feedback-form textarea {
  width: 100%;
  border: 1px solid #cbd8e5;
  border-radius: 6px;
  background: #fff;
  color: #26384d;
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.knowledge-feedback-form input { height: 42px; padding: 0 12px; }
.knowledge-feedback-form textarea { min-height: 76px; padding: 9px 12px; resize: vertical; }
.knowledge-feedback-form input:focus,
.knowledge-feedback-form textarea:focus { border-color: #0089FF; box-shadow: 0 0 0 3px rgba(0,137,255,.12); }
.knowledge-feedback-form [aria-invalid="true"] { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239,68,68,.1); }
.knowledge-feedback-submit {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 6px;
  background: #0089FF;
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  transition: background .2s ease, transform .2s ease;
}
.knowledge-feedback-submit:hover { background: #006fce; }
.knowledge-feedback-submit:active { transform: translateY(1px); }
.knowledge-feedback-submit[disabled] { cursor: wait; opacity: .65; }
.knowledge-feedback-form--hero .knowledge-feedback-submit { width: 100%; }
.knowledge-feedback-status { min-height: 20px; margin-top: 7px; color: #607186; font-size: 12px; line-height: 1.5; }
.knowledge-feedback-status.is-error { color: #d9363e; }
.knowledge-feedback-status.is-success { color: #11823b; }

.knowledge-footer-feedback { margin-top: 26px; padding: 0 0 72px; }
.knowledge-footer-feedback-inner {
  padding: 22px 28px 20px;
  border-top: 4px solid #0089FF;
  border-radius: 8px;
  background: #f2f8ff;
  box-shadow: 0 8px 30px rgba(26,71,119,.08);
}
.knowledge-footer-feedback-heading { margin-bottom: 14px; text-align: center; }
.knowledge-footer-feedback-heading h2 { margin: 0; color: #17263b; font-size: 23px; line-height: 1.45; }
.knowledge-footer-feedback-heading h2::before,
.knowledge-footer-feedback-heading h2::after { display: inline-block; width: 55px; height: 2px; margin: 0 12px 7px; background: #17263b; content: ""; }
.knowledge-footer-feedback-heading h2 span { color: #f04444; }
.knowledge-footer-feedback-heading p { margin: 3px 0 0; color: #53677d; font-size: 14px; font-weight: 600; }
.knowledge-feedback-form--footer { display: flex; flex-wrap: wrap; gap: 14px; align-items: end; }
.knowledge-feedback-inline-field { display: grid; min-width: 220px; flex: 1 1 240px; grid-template-columns: auto minmax(0,1fr); align-items: center; gap: 8px; margin: 0; }
.knowledge-feedback-inline-field > span { color: #45566b; font-size: 14px; white-space: nowrap; }
.knowledge-feedback-form--footer .knowledge-feedback-submit { width: 140px; flex: 0 0 140px; }
.knowledge-feedback-form--footer .knowledge-feedback-status { width: 100%; flex: 0 0 100%; min-height: 0; margin: 0; text-align: center; }
.knowledge-feedback-privacy { margin-top: 7px; color: #8794a5; font-size: 12px; text-align: center; }

/* The directory list remains capped at 225px; its numeric markers stay hidden. */
.knowledge-toc-panel ol { list-style: none; }

@media (max-width: 1199px) {
  .knowledge-hero-layout { grid-template-columns: minmax(0,1fr) 330px; gap: 28px; }
  .knowledge-feedback-inline-field { flex-basis: calc(50% - 14px); }
  .knowledge-feedback-form--footer .knowledge-feedback-submit { min-height: 42px; }
}

@media (max-width: 900px) {
  .knowledge-hero-inner { min-height: 0; }
  .knowledge-hero-layout { grid-template-columns: 1fr; gap: 20px; }
  .knowledge-hero-copy { padding-bottom: 0; }
  .knowledge-hero-form-card { max-width: 560px; }
  .knowledge-list-page .knowledge-category-panel > .knowledge-category-nav { max-height: none; overflow: visible; }
  .knowledge-toc-panel { max-height: min(225px, 55vh); }
  .knowledge-footer-feedback { padding-bottom: 46px; }
}

@media (max-width: 767px) {
  .knowledge-hero-form-card { padding: 20px 17px; }
  .knowledge-footer-feedback-inner { padding: 19px 15px 17px; }
  .knowledge-footer-feedback-heading h2 { font-size: 20px; }
  .knowledge-footer-feedback-heading h2::before,
  .knowledge-footer-feedback-heading h2::after { width: 24px; margin-right: 6px; margin-left: 6px; }
  .knowledge-feedback-form--footer { flex-direction: column; flex-wrap: nowrap; gap: 10px; align-items: stretch; }
  .knowledge-feedback-inline-field { width: 100%; min-width: 0; flex: 0 0 auto; grid-template-columns: 76px minmax(0,1fr); }
  .knowledge-feedback-form--footer .knowledge-feedback-submit { width: 100%; flex-basis: auto; min-height: 44px; }
}

@media (max-width: 420px) {
  .knowledge-footer-feedback-heading h2::before,
  .knowledge-footer-feedback-heading h2::after { display: none; }
  .knowledge-feedback-inline-field { grid-template-columns: 1fr; gap: 4px; }
}

/* Explicitly hide feedback control fields in all renderers. */
.knowledge-feedback-form input[type="hidden"] { display: none !important; }
.knowledge-toc-titlebar h2 { flex: 1 1 auto; white-space: nowrap; }

/* ===== v7.1 compact banner consultation form ===== */
/* Restore the banner to the compact height used before the tall v7 card. */
.knowledge-list-page .knowledge-hero-inner {
  min-height: 224px;
  padding: 18px 0 24px;
}
.knowledge-list-page .knowledge-page-hero .knowledge-breadcrumb { margin-bottom: 14px; }
.knowledge-list-page .knowledge-hero-layout {
  grid-template-columns: minmax(0, 1fr) minmax(600px, 680px);
  gap: 36px;
  align-items: center;
}
.knowledge-list-page .knowledge-hero-copy { padding: 8px 0 14px; }

.knowledge-list-page .knowledge-hero-form-card {
  padding: 15px 18px 12px;
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(0,92,172,.12);
}
.knowledge-hero-form-head {
  display: flex;
  min-width: 0;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 10px;
}
.knowledge-hero-form-heading { min-width: 0; }
.knowledge-list-page .knowledge-feedback-eyebrow {
  font-size: 12px;
  line-height: 1.35;
}
.knowledge-list-page .knowledge-hero-form-card h2 {
  margin: 2px 0 0;
  font-size: 18px;
  line-height: 1.35;
  white-space: nowrap;
}
.knowledge-hero-form-head > p {
  flex: 0 1 auto;
  margin: 0 0 1px;
  color: #718196;
  font-size: 12px;
  line-height: 1.45;
  text-align: right;
  white-space: nowrap;
}
.knowledge-feedback-form--hero {
  display: grid;
  grid-template-columns: minmax(118px, 1.05fr) minmax(128px, 1fr) minmax(158px, 1.35fr) 104px;
  gap: 9px;
  align-items: start;
}
.knowledge-feedback-form--hero .knowledge-feedback-field {
  min-width: 0;
  margin: 0;
}
/* Keep accessible labels while relying on compact placeholders visually. */
.knowledge-feedback-form--hero .knowledge-feedback-field > span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.knowledge-feedback-form--hero input {
  height: 40px;
  padding-right: 11px;
  padding-left: 11px;
  border-radius: 5px;
  font-size: 13px;
}
.knowledge-feedback-form--hero .knowledge-feedback-submit {
  width: auto;
  min-height: 40px;
  border-radius: 5px;
  font-size: 14px;
}
.knowledge-feedback-form--hero .knowledge-feedback-status {
  grid-column: 1 / -1;
  min-height: 15px;
  margin: -1px 0 0;
  font-size: 11px;
  line-height: 15px;
}

@media (max-width: 1199px) {
  .knowledge-list-page .knowledge-hero-layout {
    grid-template-columns: minmax(0, 1fr) minmax(550px, 610px);
    gap: 26px;
  }
  .knowledge-hero-form-head { gap: 10px; }
  .knowledge-hero-form-head > p { font-size: 11px; }
  .knowledge-feedback-form--hero {
    grid-template-columns: minmax(105px, 1fr) minmax(115px, 1fr) minmax(135px, 1.25fr) 96px;
    gap: 7px;
  }
}

@media (max-width: 900px) {
  .knowledge-list-page .knowledge-hero-inner { padding-top: 20px; padding-bottom: 26px; }
  .knowledge-list-page .knowledge-hero-layout { grid-template-columns: 1fr; gap: 16px; }
  .knowledge-list-page .knowledge-hero-copy { padding: 5px 0 0; }
  .knowledge-list-page .knowledge-hero-form-card { width: 100%; max-width: none; }
  .knowledge-feedback-form--hero {
    grid-template-columns: minmax(110px, 1fr) minmax(120px, 1fr) minmax(145px, 1.3fr) 104px;
    gap: 9px;
  }
}

@media (max-width: 640px) {
  .knowledge-hero-form-head { align-items: flex-start; }
  .knowledge-hero-form-head > p { display: none; }
  .knowledge-list-page .knowledge-hero-form-card h2 { white-space: normal; }
  .knowledge-feedback-form--hero { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .knowledge-feedback-form--hero .knowledge-feedback-field--message { grid-column: 1 / -1; }
  .knowledge-feedback-form--hero .knowledge-feedback-submit { grid-column: 1 / -1; }
}

@media (max-width: 420px) {
  .knowledge-feedback-form--hero { grid-template-columns: 1fr; }
  .knowledge-feedback-form--hero .knowledge-feedback-field--message,
  .knowledge-feedback-form--hero .knowledge-feedback-submit,
  .knowledge-feedback-form--hero .knowledge-feedback-status { grid-column: 1; }
}


/* ===== v7.2 compact spacing + mobile full-width + refined banner ===== */
.knowledge-shell {
  width: min(calc(100% - 32px), var(--knowledge-shell-width));
}

.knowledge-content-shell {
  padding: 22px 0 56px;
}

.knowledge-page-hero {
  background-color: #eaf4ff;
  background-image:
    linear-gradient(90deg, rgba(0, 42, 112, .08) 0%, rgba(0, 93, 193, .04) 38%, rgba(0, 125, 255, .02) 100%),
    url("/skin/knowledge-banner.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.knowledge-hero-inner {
  min-height: 208px;
  padding: 22px 0 28px;
}

.knowledge-page-hero .knowledge-breadcrumb {
  margin-bottom: 24px;
}

.knowledge-list-layout,
.knowledge-detail-layout {
  gap: 18px;
}

.knowledge-list-main {
  padding: 22px 24px 24px;
}

.knowledge-detail-page .knowledge-content-shell {
  padding-top: 22px;
}

.knowledge-detail-topline .knowledge-shell {
  padding: 14px 0;
}

.knowledge-detail-main {
  padding: 28px 30px 32px;
}

.knowledge-section-heading {
  padding-bottom: 12px;
}

.knowledge-sidebar-card {
  margin-bottom: 18px;
}

.knowledge-sidebar-card > h2,
.knowledge-rank-card > h2,
.knowledge-extension-reading > h2 {
  padding: 13px 16px 12px;
}

.knowledge-sidebar-card-body,
.knowledge-reading-sidebar .knowledge-sidebar-card-body,
.knowledge-detail-sidebar .knowledge-sidebar-card-body {
  padding: 8px 16px 12px;
}

.knowledge-category-panel > .knowledge-category-nav {
  padding: 10px 12px 12px;
}

.knowledge-toc-card {
  margin-bottom: 18px;
}

.knowledge-toc-titlebar {
  min-height: 50px;
  padding: 0 12px 0 16px;
}

.knowledge-toc-panel {
  padding: 10px 14px;
}

.knowledge-extension-reading {
  margin-top: 24px;
  padding-top: 18px;
}

.knowledge-prev-next {
  margin-top: 24px;
  padding: 16px 0;
}

@media (max-width: 1399px) {
  .knowledge-list-layout,
  .knowledge-detail-layout {
    gap: 18px;
  }

  .knowledge-reading-sidebar,
  .knowledge-detail-sidebar {
    gap: 18px;
  }
}

@media (max-width: 900px) {
  .knowledge-shell {
    width: min(calc(100% - 24px), var(--knowledge-shell-width));
  }

  .knowledge-content-shell {
    padding: 18px 0 40px;
  }

  .knowledge-category-sidebar > #knowledge-list-category-panel,
  .knowledge-category-sidebar > .knowledge-contact-panel,
  .knowledge-toc-float > .knowledge-toc-card,
  .knowledge-toc-float > .knowledge-contact-panel,
  .knowledge-list-main,
  .knowledge-detail-main,
  .knowledge-reading-sidebar,
  .knowledge-detail-sidebar {
    width: 100%;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
  }

  .knowledge-category-sidebar > #knowledge-list-category-panel,
  .knowledge-category-sidebar > .knowledge-contact-panel,
  .knowledge-toc-float > .knowledge-toc-card,
  .knowledge-toc-float > .knowledge-contact-panel {
    display: block;
    flex: 0 0 100%;
  }

  .knowledge-reading-sidebar,
  .knowledge-detail-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 18px;
  }

  .knowledge-reading-sidebar .knowledge-sidebar-card,
  .knowledge-detail-sidebar .knowledge-sidebar-card,
  .knowledge-category-sidebar .knowledge-sidebar-card,
  .knowledge-toc-float .knowledge-sidebar-card,
  .knowledge-toc-card {
    width: 100%;
    max-width: none;
  }

  .knowledge-category-sidebar > .knowledge-contact-panel {
    margin-top: 18px;
  }

  .knowledge-toc-float > .knowledge-contact-panel {
    margin-top: 18px;
  }
}

@media (max-width: 767px) {
  .knowledge-page-hero {
    background-position: center right;
    background-size: cover;
  }

  .knowledge-hero-inner {
    min-height: 168px;
    padding: 18px 0 22px;
  }

  .knowledge-page-hero .knowledge-breadcrumb {
    margin-bottom: 18px;
  }

  .knowledge-content-shell {
    padding: 16px 0 36px;
  }

  .knowledge-list-main {
    padding: 18px 16px 20px;
  }

  .knowledge-detail-page .knowledge-content-shell {
    padding-top: 16px;
  }

  .knowledge-detail-main {
    padding: 22px 16px 24px;
  }

  .knowledge-detail-topline .knowledge-shell {
    padding: 11px 0;
  }
}

@media (max-width: 480px) {
  .knowledge-shell {
    width: min(calc(100% - 20px), var(--knowledge-shell-width));
  }

  .knowledge-reading-sidebar,
  .knowledge-detail-sidebar {
    display: block;
  }

  .knowledge-reading-sidebar .knowledge-sidebar-card,
  .knowledge-detail-sidebar .knowledge-sidebar-card {
    margin-bottom: 14px;
  }

  .knowledge-detail-main {
    padding-right: 14px;
    padding-left: 14px;
  }
}


/* ===== v7.3 detail gap correction ===== */
/* 详情页左栏与正文之间使用更紧凑的真实网格间距。 */
.knowledge-detail-layout {
  column-gap: 12px !important;
  row-gap: 18px;
}

.knowledge-toc-float {
  padding-right: 0;
}

.knowledge-detail-main {
  padding-left: 24px;
  padding-right: 26px;
}

@media (max-width: 1399px) {
  .knowledge-detail-layout {
    column-gap: 12px !important;
    row-gap: 18px;
  }

  .knowledge-detail-main {
    padding-left: 22px;
    padding-right: 24px;
  }
}

@media (max-width: 900px) {
  .knowledge-detail-layout {
    column-gap: 0 !important;
    row-gap: 0;
  }

  .knowledge-detail-main {
    padding-left: 18px;
    padding-right: 18px;
  }
}

@media (max-width: 480px) {
  .knowledge-detail-main {
    padding-left: 14px;
    padding-right: 14px;
  }
}