:root {
  --lc-ink: #172033;
  --lc-muted: #667085;
  --lc-line: #e4e9f2;
  --lc-page: #f6f8fc;
  --lc-surface: #fff;
  --lc-accent: #635bff;
  --lc-accent-dark: #4138c9;
  --lc-tint: #efefff;
}

html { scroll-behavior: smooth; }

body.learning-center {
  display: block !important;
  min-width: 0;
  min-height: 100%;
  height: auto !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
  color: var(--lc-ink);
  background: radial-gradient(circle at 78% -12%, rgba(112, 101, 255, .14), transparent 29rem), var(--lc-page) !important;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

body.learning-center.lc-article { background: #fff !important; }

/* Single-page visual prototype: a conventional documentation layout.
   It is scoped to the confirmed sample page until the navigation structure is
   generated for every article. */
.learning-center.lc-article-prototype .warpper-content {
  display: flex !important;
  width: min(1440px, calc(100% - 64px)) !important;
  min-height: calc(100vh - 76px);
  margin: 0 auto;
}
.learning-center.lc-article-prototype .sidebar-border {
  display: block !important;
  flex: 0 0 226px;
  box-sizing: border-box;
  padding: 48px 28px 48px 0;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--lc-line);
  box-shadow: none;
}
.learning-center.lc-article-prototype aside.sidebar.course-navigation {
  position: sticky;
  top: 108px;
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  max-height: calc(100vh - 132px);
  padding: 0;
  overflow: auto;
}
.learning-center.lc-article-prototype .course-navigation a {
  display: block;
  box-sizing: border-box;
  min-width: 0;
  margin: 0;
  padding: 7px 10px;
  overflow: hidden;
  color: var(--lc-muted);
  font-size: 14px;
  font-weight: 560;
  line-height: 1.45;
  text-align: left;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-radius: 7px;
}
.learning-center.lc-article-prototype .course-navigation a:hover { color: var(--lc-accent); background: var(--lc-tint); }
.learning-center.lc-article-prototype .course-navigation__title {
  padding: 0 0 16px;
  color: var(--lc-ink);
  font-size: 16px;
  font-weight: 760;
  border-bottom: 1px solid var(--lc-line);
  border-radius: 0;
}
.learning-center.lc-article-prototype .course-navigation__title:hover { color: var(--lc-ink); background: transparent; }
.learning-center.lc-article-prototype .course-navigation__group { margin: 0; padding: 5px 0; border-bottom: 1px solid #f0f2f7; }
.learning-center.lc-article-prototype .course-navigation__group summary { position: relative; padding: 7px 10px; color: var(--lc-ink); font-size: 14px; font-weight: 700; line-height: 1.45; cursor: pointer; list-style: none; }
.learning-center.lc-article-prototype .course-navigation__group summary::-webkit-details-marker { display: none; }
.learning-center.lc-article-prototype .course-navigation__group summary::after { position: absolute; top: 50%; right: 10px; width: 5px; height: 5px; content: ""; border-right: 1.5px solid #98a2b3; border-bottom: 1.5px solid #98a2b3; transform: translateY(-65%) rotate(45deg); transition: transform .18s ease; }
.learning-center.lc-article-prototype .course-navigation__group[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.learning-center.lc-article-prototype .course-navigation__article { margin: 1px 0 1px 10px; padding: 6px 11px; font-size: 13px; }
.learning-center.lc-article-prototype .course-navigation__article.is-current { color: var(--lc-accent); font-weight: 700; background: var(--lc-tint); box-shadow: inset 2px 0 0 var(--lc-accent); }
.learning-center.lc-article-prototype .wrapper-main { min-width: 0; overflow: visible; background: transparent; border-radius: 0; }
.learning-center.lc-article-prototype .wrapper-main-content {
  display: grid !important;
  grid-template-columns: minmax(0, 720px) 220px;
  justify-content: center;
  gap: 56px;
  padding: 52px 0 76px 54px !important;
}
.learning-center.lc-article-prototype .tocs {
  grid-column: 2 !important;
  grid-row: 1 !important;
  position: sticky;
  top: 108px;
  box-sizing: border-box;
  width: auto !important;
  max-height: calc(100vh - 132px);
  padding: 3px 0 6px 0;
  overflow: auto;
  background: transparent;
  border: 0;
  border-left: 0;
  border-radius: 0;
  box-shadow: none;
}
.learning-center.lc-article-prototype .tocs .toc-title { margin: 0 0 13px; padding: 0; color: var(--lc-ink); font-size: 14px; font-weight: 760; border: 0; }
.learning-center.lc-article-prototype .tocs a { padding: 5px 9px; overflow: visible; font-size: 13px; line-height: 1.55; text-overflow: clip; white-space: normal; border-radius: 6px; }
.learning-center.lc-article-prototype .tocs a.is-active-link { padding-left: 9px; color: var(--lc-accent); background: var(--lc-tint); border-left: 0; }
.learning-center.lc-article-prototype markdown-style {
  grid-column: 1 !important;
  grid-row: 1 !important;
  width: 100% !important;
  min-width: 0;
  padding: 0 0 52px !important;
}
.learning-center.lc-article-prototype markdown-style video { width: min(100%, 360px); max-width: 100%; margin-right: auto; margin-left: 0; }
.learning-center.lc-article-prototype markdown-style .breadcrumb { margin-bottom: 16px; font-size: 14px; }

@media (max-width: 1180px) {
  .learning-center.lc-article-prototype .sidebar-border { flex-basis: 200px; padding-right: 22px; }
  .learning-center.lc-article-prototype .wrapper-main-content { grid-template-columns: minmax(0, 1fr) 200px; gap: 36px; padding-left: 36px !important; }
}
@media (max-width: 920px) {
  .learning-center.lc-article-prototype .tocs { display: none; }
  .learning-center.lc-article-prototype .wrapper-main-content { grid-template-columns: minmax(0, 760px); padding-left: 34px !important; }
}
@media (max-width: 720px) {
  .learning-center.lc-article-prototype .sidebar-border { display: none !important; }
  .learning-center.lc-article-prototype .wrapper-main-content { padding: 72px 0 36px !important; }
}

.learning-center .header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  max-width: none;
  padding: 0 !important;
  background: linear-gradient(90deg, rgba(247, 250, 255, .96), rgba(250, 248, 255, .96)) !important;
  border-bottom: 1px solid rgba(224, 229, 240, .9);
  box-shadow: none;
  backdrop-filter: blur(18px);
}
.learning-center .header .inner {
  position: relative;
  display: flex;
  align-items: center;
  width: min(1440px, calc(100% - 64px)) !important;
  min-width: 0 !important;
  min-height: 76px;
  height: 76px;
  padding: 0 !important;
}
.learning-center .logo { display: inline-flex; flex: 0 0 auto; gap: 0; align-items: center; color: var(--lc-ink); }
.learning-center .logo img { width: 34px; height: 34px; margin: 0 10px 0 0; }
.learning-center .logo img.brand-wordmark { width: auto; height: 32px; margin: 0 14px 0 0; object-fit: contain; }
.learning-center .learning-center-label { margin-left: 16px; padding-left: 16px; color: var(--lc-ink); font-size: 19px; font-weight: 700; letter-spacing: -.02em; line-height: 1; white-space: nowrap; border-left: 1px solid #d7dce7; }
.learning-center .learning-nav { position: absolute; top: 50%; left: 50%; display: flex; gap: 5px; align-items: center; margin: 0; transform: translate(-50%, -50%); }
.learning-center .learning-nav a { position: relative; padding: 9px 14px; color: var(--lc-muted); font-size: 15px; font-weight: 650; line-height: 1.25; border-radius: 8px; white-space: nowrap; }
.learning-center .learning-nav a:hover { color: var(--lc-accent); background: transparent; text-decoration: none; }
.learning-center .learning-nav a[aria-current="page"] { color: var(--lc-accent); background: transparent; }
.learning-center .learning-nav a[aria-current="page"]::after { position: absolute; bottom: -9px; left: 50%; width: 18px; height: 3px; content: ""; background: var(--lc-accent); border-radius: 999px; transform: translateX(-50%); }
.learning-center .header .content { display: flex; flex: 0 0 auto; align-items: center; margin-left: auto; }
.learning-center .header .menu { padding: 0; margin: 0; }
.learning-center .menu li a { display: inline-flex; flex: 0 0 112px; align-items: center; justify-content: center; box-sizing: border-box; width: 112px !important; min-width: 112px; height: 40px !important; padding: 0 !important; color: #fff !important; font-size: 14px !important; font-weight: 650; background: linear-gradient(135deg, #7a45ff 0%, #3f3cff 100%) !important; border: 0; border-radius: 10px !important; box-shadow: 0 6px 14px rgba(81, 63, 238, .22); }
.learning-center .menu li a:hover { text-decoration: none; background: linear-gradient(135deg, #6c35f4 0%, #3034ee 100%) !important; transform: translateY(-1px); }

/* Article pages retain their reading sidebar; only the shared chrome is restyled. */
.learning-center.lc-article .warpper-content { width: min(1200px, calc(100% - 64px)); min-width: 0; margin: 0 auto; }
.learning-center.lc-article .sidebar-border { display: none; }
.learning-center.lc-article .sidebar a { color: var(--lc-muted); font-size: 14px; font-weight: 600; border-radius: 8px; }
.learning-center.lc-article .sidebar a.active { color: var(--lc-accent); background: var(--lc-tint); }
.learning-center.lc-article .wrapper-main { flex: 1 1 auto; min-width: 0; overflow-y: visible; background: transparent; }
.learning-center.lc-article .wrapper-main-content { display: grid !important; grid-template-columns: 204px minmax(0, 820px); gap: 48px; justify-content: center; align-items: start; padding: 52px 0 72px !important; }
.learning-center.lc-article .tocs { grid-column: 1 !important; grid-row: 1 !important; position: sticky; top: 108px; box-sizing: border-box; width: auto !important; max-height: calc(100vh - 136px); padding: 3px 22px 8px 0; overflow: auto; background: transparent; border: 0; border-right: 1px solid var(--lc-line); border-radius: 0; box-shadow: none; }
.learning-center.lc-article .tocs .toc-title { margin: 0 0 14px; padding-bottom: 12px; color: var(--lc-ink); font-size: 15px; font-weight: 760; letter-spacing: .01em; border-bottom: 1px solid var(--lc-line); }
.learning-center.lc-article .tocs ol,.learning-center.lc-article .tocs ul { padding: 0; margin: 0; list-style: none; }
.learning-center.lc-article .tocs .toc-list .toc-list { padding-left: 12px; }
.learning-center.lc-article .tocs .toc-list-item { margin: 2px 0; }
.learning-center.lc-article .tocs a { display: block; padding: 4px 0; overflow: hidden; color: var(--lc-muted); font-size: 14px; line-height: 1.6; text-overflow: ellipsis; white-space: nowrap; }
.learning-center.lc-article .tocs a:hover { color: var(--lc-accent); text-decoration: none; }
.learning-center.lc-article .tocs a.is-active-link { padding-left: 10px; color: var(--lc-accent); font-weight: 700; border-left: 2px solid var(--lc-accent); }
.learning-center.lc-article markdown-style { grid-column: 2 !important; grid-row: 1 !important; box-sizing: border-box; width: 100% !important; min-width: 0; margin: 0 !important; padding: 0 0 52px !important; background: transparent; border: 0; border-radius: 0; box-shadow: none; }
.learning-center.lc-article markdown-style > :first-child { margin-top: 0; }
.learning-center.lc-article markdown-style h1 { margin-bottom: 20px; color: var(--lc-ink); font-size: clamp(28px, 2.4vw, 36px); line-height: 1.25; }
.learning-center.lc-article markdown-style h2 { margin-top: 38px; padding-top: 4px; color: var(--lc-ink); font-size: 22px; line-height: 1.35; }
.learning-center.lc-article markdown-style h3 { margin-top: 28px; color: var(--lc-ink); font-size: 18px; }
.learning-center.lc-article markdown-style p,
.learning-center.lc-article markdown-style li { color: #3d4759; font-size: 16px; line-height: 1.9; }
.learning-center.lc-article markdown-style img { display: block; max-width: 100%; height: auto; margin: 22px 0; border-radius: 10px; }
.learning-center.lc-article markdown-style video { display: block; max-width: 100%; margin: 22px 0; border-radius: 10px; background: #111827; }
.learning-center.lc-article .footer { width: min(1440px, calc(100% - 64px)) !important; margin: 0 auto; padding: 20px 0 30px !important; color: #98a2b3; background: transparent; border-top: 1px solid var(--lc-line); }

/* Homepages use a wider, editorial portal layout. */
.learning-center.lc-home .warpper-content { display: block; width: min(1440px, calc(100% - 64px)) !important; min-width: 0 !important; margin: 0 auto !important; padding: 0 0 56px !important; }
.learning-center.lc-home .sidebar-border { display: none; }
.learning-center.lc-home .wrapper-main,
.learning-center.lc-home .wrapper-main-content,
.learning-center.lc-home markdown-style { display: block; width: 100% !important; min-width: 0 !important; max-width: none !important; margin: 0 !important; padding: 0 !important; }
.learning-center.lc-home .wrapper-main { overflow: visible !important; background: transparent; }
.learning-center.lc-home .footer { width: 100% !important; margin-top: 48px; padding: 20px 0 30px !important; color: #98a2b3; background: transparent; border-top: 1px solid var(--lc-line); }

.learning-hero { position: relative; display: flex; align-items: center; min-height: 190px; margin: 30px 0 42px; padding: 26px 46px; overflow: visible; isolation: isolate; color: var(--lc-ink); border-radius: 22px; box-shadow: 0 18px 38px rgba(80, 73, 176, .14); }
.learning-hero::before { position: absolute; z-index: 0; inset: 0; content: ""; pointer-events: none; background: radial-gradient(ellipse 50% 118% at 50% 110%, rgba(255,255,255,.94) 0 44%, transparent 45%), radial-gradient(ellipse 72% 150% at 48% 109%, rgba(255,255,255,.42) 0 51%, transparent 52%); border-radius: inherit; }
.learning-hero__content { position: relative; z-index: 3; max-width: 630px; }
.learning-hero__eyebrow { display: flex; align-items: center; gap: 8px; margin: 0 0 11px; color: #7567da; font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.learning-hero__eyebrow::before { width: 20px; height: 1px; content: ""; background: currentColor; }
.learning-hero h1 { margin: 0; color: var(--lc-accent-dark); font-size: clamp(34px, 2.8vw, 42px); font-weight: 780; line-height: 1.15; letter-spacing: -.04em; }
.learning-hero p { max-width: 540px; margin: 12px 0 0; color: #5e6384; font-size: 16px; line-height: 1.75; }
.learning-hero__feature { position: absolute; z-index: 2; right: 54px; bottom: -23px; display: block; width: 136px; overflow: hidden; color: #fff; background: #23205e; border: 1px solid rgba(255, 255, 255, .5); border-radius: 15px; box-shadow: 0 20px 34px rgba(5, 8, 31, .34); transform: rotate(3deg); transition: transform .25s ease, box-shadow .25s ease; }
.learning-hero__feature::after { position: absolute; right: 0; bottom: 0; left: 0; height: 56%; content: ""; background: linear-gradient(transparent, rgba(11, 12, 30, .9)); }
.learning-hero__feature img { display: block; width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.learning-hero__feature-tag,.learning-hero__feature-title { position: absolute; z-index: 1; left: 13px; }
.learning-hero__feature-tag { top: 12px; padding: 4px 7px; color: #2b2159; font-size: 10px; font-weight: 750; letter-spacing: .04em; background: rgba(255, 255, 255, .93); border-radius: 5px; }
.learning-hero__feature-title { right: 13px; bottom: 14px; font-size: 14px; font-weight: 700; line-height: 1.32; }
.learning-hero__feature:hover { color: #fff; text-decoration: none; box-shadow: 0 25px 40px rgba(5, 8, 31, .44); transform: translateY(-4px) rotate(1.5deg); }
.lc-section-feature { --lc-accent: #635bff; --lc-accent-dark: #523dd2; --lc-tint: #efefff; }
.lc-section-feature .learning-hero { background: linear-gradient(112deg, #ddecff 0%, #d6d9ff 53%, #eee0ff 100%); }
.lc-section-practice { --lc-accent: #de5c32; --lc-accent-dark: #c34f2c; --lc-tint: #fff0eb; }
.lc-section-practice .learning-hero { background: linear-gradient(112deg, #ffe9e2 0%, #ffe0d1 53%, #ffe6bd 100%); box-shadow: 0 18px 38px rgba(185, 87, 53, .13); }
.lc-section-practice .learning-hero__eyebrow { color: #c7775e; }.lc-section-practice .learning-hero p { color: #765d56; }
.lc-section-vocation { --lc-accent: #0c8a7a; --lc-accent-dark: #087b70; --lc-tint: #e7f8f5; }
.lc-section-vocation .learning-hero { background: linear-gradient(112deg, #ddf6f1 0%, #d9effd 53%, #d9e8ff 100%); box-shadow: 0 18px 38px rgba(24, 126, 113, .13); }.lc-section-vocation .learning-hero__eyebrow { color: #4a9b90; }.lc-section-vocation .learning-hero p { color: #4f6e74; }
.lc-section-case { --lc-accent: #bf7c11; --lc-accent-dark: #aa6a10; --lc-tint: #fff5dd; }
.lc-section-case .learning-hero { background: linear-gradient(112deg, #fff0d4 0%, #faebc9 53%, #f7dfb6 100%); box-shadow: 0 18px 38px rgba(171, 113, 22, .13); }.lc-section-case .learning-hero__eyebrow { color: #b4843b; }.lc-section-case .learning-hero p { color: #786650; }

.learning-center.lc-home .wrapper-title { margin: 0; padding: 0 0 16px !important; color: var(--lc-ink); font-size: 21px !important; font-weight: 760; line-height: 1.3; }
.learning-center.lc-home .wrapper-category { display: block !important; box-sizing: border-box; width: 100%; min-height: 0; padding: 26px !important; background: var(--lc-surface); border: 1px solid rgba(223, 228, 238, .9); border-radius: 18px !important; box-shadow: 0 10px 30px rgba(30, 41, 59, .045) !important; }
.learning-center.lc-home .category-list { position: static !important; display: flex; gap: 5px; align-items: center; width: auto; max-width: none; margin: -26px -26px 28px !important; padding: 15px 26px !important; overflow-x: auto; background: rgba(255,255,255,.94); border: 0; border-bottom: 1px solid var(--lc-line); border-radius: 18px 18px 0 0; box-shadow: none; scrollbar-width: none; }
.learning-center.lc-home .category-list::-webkit-scrollbar { display: none; }
.learning-center.lc-home .category-list a { flex: 0 0 auto; margin: 0 !important; padding: 7px 10px !important; color: var(--lc-muted); font-size: 14px; font-weight: 650; line-height: 1.2 !important; border-radius: 8px; }
.learning-center.lc-home .category-list a.actived { color: var(--lc-accent) !important; background: var(--lc-tint); -webkit-text-fill-color: currentColor; }
.learning-center.lc-home .category-list a.actived::after { display: none; }
.learning-center.lc-home .category-list a:hover { color: var(--lc-accent); background: var(--lc-tint); transform: none; }

/* Keep the sample article independent from the legacy article rules above. */
body.learning-center.lc-article.lc-article-prototype .wrapper-main-content {
  display: grid !important;
  grid-template-columns: minmax(0, 720px) 220px !important;
  justify-content: center;
  gap: 56px;
  padding: 52px 0 76px 54px !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs {
  display: block;
  grid-column: 2 !important;
  grid-row: 1 !important;
}
body.learning-center.lc-article.lc-article-prototype markdown-style {
  grid-column: 1 !important;
  grid-row: 1 !important;
}
@media (max-width: 1360px) {
  body.learning-center.lc-article.lc-article-prototype .sidebar-border { flex-basis: 204px; padding-right: 22px; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content {
    grid-template-columns: minmax(0, 1fr) 200px !important;
    gap: 36px;
    padding-left: 36px !important;
  }
}
@media (max-width: 920px) {
  body.learning-center.lc-article.lc-article-prototype .tocs { display: none; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content { grid-template-columns: minmax(0, 760px) !important; padding-left: 34px !important; }
}

body.learning-center.lc-article.lc-article-prototype .tocs {
  padding: 3px 0 6px !important;
  border: 0 !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs ol,
body.learning-center.lc-article.lc-article-prototype .tocs li { width: 100%; max-width: 100%; }
body.learning-center.lc-article.lc-article-prototype .tocs .inner.toc {
  box-sizing: border-box;
  width: 100% !important;
  padding: 0 !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs .toc-list .toc-list { padding-left: 10px; }
body.learning-center.lc-article.lc-article-prototype .tocs a {
  display: block;
  box-sizing: border-box;
  width: 100% !important;
  padding: 5px 9px;
  overflow: visible !important;
  overflow-wrap: anywhere;
  text-overflow: clip !important;
  white-space: normal !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs a.is-active-link {
  padding-left: 9px;
  color: var(--lc-accent);
  background: var(--lc-tint);
  border-left: 0 !important;
}

/* HeyGen-style full-width documentation shell for the approved sample page. */
body.learning-center.lc-article.lc-article-prototype .warpper-content {
  display: flex !important;
  width: 100% !important;
  min-height: calc(100vh - 76px);
  margin: 0 !important;
}
body.learning-center.lc-article.lc-article-prototype .sidebar-border {
  flex: 0 0 304px;
  padding: 44px 28px;
  background: #fbfcff;
  border-right: 1px solid #e5e9f1;
  box-shadow: none;
}
body.learning-center.lc-article.lc-article-prototype aside.sidebar.course-navigation {
  top: 100px;
  max-height: calc(100vh - 124px);
  padding: 0;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__title {
  padding: 0 10px 16px;
  color: #202a3b;
  font-size: 15px;
  font-weight: 760;
  border-bottom: 0;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__group {
  padding: 0 0 8px;
  border: 0;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__group summary {
  padding: 8px 10px;
  color: #344054;
  font-size: 13px;
  font-weight: 700;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__article {
  margin: 1px 0 1px 8px;
  padding: 6px 10px 6px 12px;
  overflow: visible;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  text-overflow: clip;
  white-space: normal;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__article.is-current {
  color: var(--lc-accent);
  background: transparent;
  box-shadow: inset 2px 0 0 var(--lc-accent);
}
body.learning-center.lc-article.lc-article-prototype .wrapper-main { width: auto; min-width: 0; }
body.learning-center.lc-article.lc-article-prototype .wrapper-main-content {
  box-sizing: border-box;
  width: 100%;
  grid-template-columns: minmax(0, 720px) 220px !important;
  justify-content: space-between;
  column-gap: 64px;
  padding: 52px clamp(48px, 5.5vw, 112px) 80px clamp(56px, 13vw, 260px) !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs {
  top: 108px;
  padding: 3px 0 !important;
  border: 0 !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs .toc-title {
  margin-bottom: 15px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--lc-line);
}
body.learning-center.lc-article.lc-article-prototype .tocs .inner.toc,
body.learning-center.lc-article.lc-article-prototype .tocs ol,
body.learning-center.lc-article.lc-article-prototype .tocs li { box-sizing: border-box; width: 100% !important; max-width: 100%; }
body.learning-center.lc-article.lc-article-prototype .tocs li { list-style: none !important; }
body.learning-center.lc-article.lc-article-prototype .tocs li::before,
body.learning-center.lc-article.lc-article-prototype .tocs li::after,
body.learning-center.lc-article.lc-article-prototype .tocs a::before,
body.learning-center.lc-article.lc-article-prototype .tocs a::after { display: none !important; content: none !important; }
body.learning-center.lc-article.lc-article-prototype .tocs a {
  color: #667085;
  font-weight: 500;
}
body.learning-center.lc-article.lc-article-prototype .tocs a.is-active-link {
  font-weight: 700;
  background: var(--lc-tint);
}
@media (max-width: 1440px) {
  body.learning-center.lc-article.lc-article-prototype .sidebar-border { flex-basis: 250px; padding: 40px 22px; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content {
    grid-template-columns: minmax(0, 1fr) 200px !important;
    column-gap: 40px;
    padding: 52px 32px 76px 48px !important;
  }
}
@media (max-width: 960px) {
  body.learning-center.lc-article.lc-article-prototype .sidebar-border { flex-basis: 230px; padding-right: 18px; padding-left: 18px; }
  body.learning-center.lc-article.lc-article-prototype .tocs { display: none; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content { grid-template-columns: minmax(0, 1fr) !important; padding-left: 34px !important; }
}

/* Persistent documentation navigation: header / course tree / page outline. */
body.learning-center.lc-article.lc-article-prototype { padding-top: 76px; }
body.learning-center.lc-article.lc-article-prototype .header { position: fixed; top: 0; right: 0; left: 0; }
body.learning-center.lc-article.lc-article-prototype .warpper-content { min-height: calc(100vh - 76px); }
body.learning-center.lc-article.lc-article-prototype .sidebar-border {
  position: fixed;
  z-index: 20;
  top: 76px;
  bottom: 0;
  left: 0;
  box-sizing: border-box;
  width: 304px;
  padding: 40px 28px 28px;
  overflow: hidden auto;
  background: #fbfcff;
}
body.learning-center.lc-article.lc-article-prototype aside.sidebar.course-navigation {
  position: static;
  max-height: none;
  overflow: visible;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__title {
  margin: 0 0 15px;
  padding: 0 10px;
  color: #1d2939;
  font-size: 15px;
  font-weight: 750;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__group { margin: 0 0 15px; padding: 0; }
body.learning-center.lc-article.lc-article-prototype .course-navigation__group summary {
  padding: 0 10px 7px;
  color: #344054;
  font-size: 13px;
  font-weight: 700;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__group summary::after { right: 11px; opacity: .55; }
body.learning-center.lc-article.lc-article-prototype .course-navigation__article {
  margin: 0 0 1px 8px;
  padding: 5px 10px 5px 12px;
  color: #667085;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.55;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__article:hover { color: var(--lc-accent); background: transparent; }
body.learning-center.lc-article.lc-article-prototype .course-navigation__article.is-current {
  color: var(--lc-accent);
  font-weight: 700;
  background: transparent;
  border-left: 2px solid var(--lc-accent);
  border-radius: 0;
  box-shadow: none !important;
}
body.learning-center.lc-article.lc-article-prototype .wrapper-main {
  box-sizing: border-box;
  width: calc(100% - 304px);
  margin-left: 304px;
}
body.learning-center.lc-article.lc-article-prototype .wrapper-main-content {
  display: block !important;
  box-sizing: border-box;
  width: 100%;
  padding: 52px clamp(320px, 24vw, 420px) 80px clamp(56px, 13vw, 260px) !important;
}
body.learning-center.lc-article.lc-article-prototype markdown-style {
  display: block;
  box-sizing: border-box;
  width: min(720px, 100%) !important;
}
body.learning-center.lc-article.lc-article-prototype markdown-style > .breadcrumb { display: none; }
body.learning-center.lc-article.lc-article-prototype .prototype-breadcrumb {
  display: flex;
  gap: 7px;
  align-items: center;
  margin: 0 0 16px;
  color: #667085;
  font-size: 14px;
  line-height: 1.4;
}
body.learning-center.lc-article.lc-article-prototype .prototype-breadcrumb a { color: #667085; text-decoration: none; }
body.learning-center.lc-article.lc-article-prototype .prototype-breadcrumb a:hover { color: var(--lc-accent); }
body.learning-center.lc-article.lc-article-prototype .prototype-breadcrumb [aria-current="page"] { color: #344054; font-weight: 600; }
body.learning-center.lc-article.lc-article-prototype .tocs {
  position: fixed;
  z-index: 10;
  top: 128px;
  right: clamp(48px, 5.5vw, 112px);
  box-sizing: border-box;
  width: 220px !important;
  max-height: calc(100vh - 156px);
  padding: 0 !important;
  overflow: hidden auto;
}
body.learning-center.lc-article.lc-article-prototype .tocs .toc-title {
  margin: 0 0 14px;
  padding: 0 0 12px;
  color: #1d2939;
  font-size: 14px;
  font-weight: 750;
  border-bottom: 1px solid var(--lc-line);
}
body.learning-center.lc-article.lc-article-prototype .tocs .toc-list .toc-list { padding-left: 10px; }
body.learning-center.lc-article.lc-article-prototype .tocs a {
  padding: 5px 8px 5px 10px;
  color: #667085;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.55;
  background: transparent;
  border-left: 2px solid transparent !important;
  border-radius: 0;
}
body.learning-center.lc-article.lc-article-prototype .tocs a:hover { color: var(--lc-accent); background: transparent; }
body.learning-center.lc-article.lc-article-prototype .tocs a.is-active-link {
  padding-left: 10px;
  color: var(--lc-accent);
  font-weight: 700;
  background: transparent;
  border-left-color: var(--lc-accent) !important;
}
@media (max-width: 1440px) {
  body.learning-center.lc-article.lc-article-prototype .sidebar-border { width: 250px; padding: 36px 22px 24px; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main { width: calc(100% - 250px); margin-left: 250px; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content { padding: 52px 272px 76px 48px !important; }
  body.learning-center.lc-article.lc-article-prototype .tocs { right: 32px; width: 200px !important; }
}
@media (max-width: 960px) {
  body.learning-center.lc-article.lc-article-prototype .sidebar-border { width: 230px; padding-right: 18px; padding-left: 18px; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main { width: calc(100% - 230px); margin-left: 230px; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content { padding-right: 34px !important; padding-left: 34px !important; }
  body.learning-center.lc-article.lc-article-prototype .tocs { display: none; }
}
@media (max-width: 720px) {
  body.learning-center.lc-article.lc-article-prototype .sidebar-border { display: none !important; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main { width: 100%; margin-left: 0; }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content { padding-right: 20px !important; padding-left: 20px !important; }
}

/* One responsive shell for both portal and article pages. */
:root { --lc-shell-gutter: clamp(24px, 3vw, 56px); }
.learning-center .header .inner {
  box-sizing: border-box;
  width: 100% !important;
  padding-right: var(--lc-shell-gutter) !important;
  padding-left: var(--lc-shell-gutter) !important;
}
.learning-center.lc-home .warpper-content {
  box-sizing: border-box;
  width: 100% !important;
  margin: 0 !important;
  padding: 0 var(--lc-shell-gutter) 56px !important;
}
.learning-center.lc-home .footer,
.learning-center.lc-article.lc-article-prototype .footer {
  box-sizing: border-box;
  width: 100% !important;
  margin: 0 !important;
  padding-right: var(--lc-shell-gutter) !important;
  padding-left: var(--lc-shell-gutter) !important;
}
.learning-center.lc-home .article-list {
  grid-template-columns: repeat(auto-fill, minmax(clamp(180px, 13vw, 230px), 1fr));
}
body.learning-center.lc-article.lc-article-prototype .sidebar-border { padding-left: var(--lc-shell-gutter); }
body.learning-center.lc-article.lc-article-prototype .tocs { right: var(--lc-shell-gutter); }
body.learning-center.lc-article.lc-article-prototype .wrapper-main-content {
  padding-right: calc(var(--lc-shell-gutter) + 284px) !important;
}
@media (max-width: 1440px) {
  body.learning-center.lc-article.lc-article-prototype .sidebar-border { padding-left: var(--lc-shell-gutter); }
  body.learning-center.lc-article.lc-article-prototype .tocs { right: var(--lc-shell-gutter); }
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content { padding-right: calc(var(--lc-shell-gutter) + 240px) !important; }
}
@media (max-width: 960px) {
  body.learning-center.lc-article.lc-article-prototype .wrapper-main-content { padding-right: 34px !important; }
}
@media (max-width: 720px) {
  :root { --lc-shell-gutter: 16px; }
  .learning-center.lc-home .article-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.learning-center.lc-home .category-main > div { margin: 0 0 34px !important; padding: 0 !important; background: transparent !important; border: 0 !important; border-radius: 0; }
.learning-center.lc-home .category-main > div:last-child { margin-bottom: 0 !important; }
.learning-center.lc-home .wrapper-category h4 { display: flex; gap: 10px; align-items: center; margin: 0 0 16px !important; padding: 0 !important; color: var(--lc-ink); font-size: 18px !important; font-weight: 720 !important; line-height: 1.25; }
.learning-center.lc-home .wrapper-category h4::before { display: block; width: 4px; height: 19px; content: ""; background: var(--lc-accent); border-radius: 99px; }.learning-center.lc-home .wrapper-category h4 .anchor { display: none; }.learning-center.lc-home .wrapper-category h4 .category-item { padding: 0 !important; color: inherit; }
.learning-center.lc-home .category-main { display: block !important; width: 100% !important; }
.learning-center.lc-home .article-list { display: grid !important; box-sizing: border-box; width: 100% !important; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 18px !important; align-items: start; }
.learning-center.lc-home .article-item { display: block !important; box-sizing: border-box; width: 100% !important; max-width: none !important; min-width: 0; margin: 0 !important; overflow: visible; background: transparent !important; border: 0 !important; border-radius: 0 !important; box-shadow: none !important; transition: transform .22s ease; }
.learning-center.lc-home .article-item a { display: block; height: 100%; color: inherit; }.learning-center.lc-home .article-item .img { width: 100%; height: auto; padding-top: 133.333% !important; overflow: hidden; background: #edf0f6; border-radius: 13px; box-shadow: 0 5px 16px rgba(30,41,59,.08); }.learning-center.lc-home .article-item .img img { transition: transform .35s ease; }
.learning-center.lc-home .article-item .title { display: -webkit-box !important; min-height: 0 !important; margin: 0 !important; padding: 11px 2px 2px !important; overflow: hidden !important; color: #263248; font-size: 15px !important; font-weight: 650; line-height: 1.5 !important; text-overflow: clip !important; white-space: normal !important; -webkit-box-orient: vertical; -webkit-line-clamp: 2; background: transparent !important; }.learning-center.lc-home .article-item:hover { transform: translateY(-4px); }.learning-center.lc-home .article-item:hover .img { box-shadow: 0 14px 25px rgba(30,41,59,.18); }.learning-center.lc-home .article-item:hover .img img { transform: scale(1.055); }.learning-center.lc-home .article-item:hover .title { color: var(--lc-accent-dark); }
.learning-center.lc-home .empty { display: flex; flex-direction: column; gap: 14px; align-items: center; justify-content: center; box-sizing: border-box; width: 100% !important; min-width: 100%; min-height: 340px; background: linear-gradient(135deg, color-mix(in srgb, var(--lc-tint) 72%, white), #fff); border: 1px dashed color-mix(in srgb, var(--lc-accent) 30%, white); border-radius: 16px; box-shadow: inset 0 0 0 1px rgba(255,255,255,.72); }.learning-center.lc-home .empty::before { display: grid; place-items: center; width: 48px; height: 48px; content: "✦"; color: var(--lc-accent); font-size: 22px; line-height: 1; background: var(--lc-tint); border: 1px solid color-mix(in srgb, var(--lc-accent) 16%, white); border-radius: 16px; }.learning-center.lc-home .empty img { display: none !important; }.learning-center.lc-home .empty p { margin: 0 !important; color: var(--lc-ink) !important; font-size: 17px !important; font-weight: 650; }

@media (max-width: 1440px) {
  .learning-center.lc-home .article-list { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

@media (max-width: 1120px) {
  .learning-center.lc-home .article-list { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .learning-center.lc-article .wrapper-main-content { grid-template-columns: 186px minmax(0, 1fr); gap: 32px; }
}

@media (max-width: 920px) {
  .learning-center.lc-article .tocs { display: none; }
  .learning-center.lc-article .wrapper-main-content { grid-template-columns: minmax(0, 1fr); padding-left: 24px !important; }
}

@media (max-width: 720px) {
  .learning-center .header .inner,.learning-center.lc-home .warpper-content,.learning-center.lc-article .warpper-content,.learning-center .footer { width: min(100% - 32px, 1440px) !important; }
  .learning-center .header .inner { min-height: 60px; height: 60px; }.learning-center .logo img { width: 27px; height: 27px; margin-right: 7px; }.learning-center .logo img.brand-wordmark { width: auto; height: 26px; margin-right: 10px; }.learning-center .learning-center-label { margin-left: 11px; padding-left: 11px; font-size: 15px; }.learning-center .menu li a { flex-basis: 90px; width: 90px !important; min-width: 90px; height: 32px !important; font-size: 12px !important; border-radius: 8px !important; }
  .learning-center .learning-nav { top: 60px; left: -16px; width: 100vw; gap: 4px; padding: 8px 16px; overflow-x: auto; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--lc-line); transform: none; box-sizing: border-box; scrollbar-width: none; }.learning-center .learning-nav::-webkit-scrollbar { display: none; }.learning-center .learning-nav a { flex: 0 0 auto; padding: 6px 9px; font-size: 12px; }.learning-center .learning-nav a[aria-current="page"]::after { bottom: -4px; }
  .learning-center.lc-home .warpper-content { padding-top: 37px !important; }.learning-center.lc-article .wrapper-main-content { padding: 72px 0 36px !important; }.learning-center.lc-article .sidebar-border { display: none; }.learning-center.lc-article markdown-style { padding: 24px 20px 32px !important; border-right: 0; border-left: 0; border-radius: 0; }.learning-center.lc-article markdown-style p,.learning-center.lc-article markdown-style li { font-size: 15px; line-height: 1.8; }
  .learning-hero { min-height: 0; margin: 18px 0 34px; padding: 22px 24px; border-radius: 17px; }.learning-hero h1 { font-size: 32px; }.learning-hero p { max-width: 270px; font-size: 13px; line-height: 1.65; }.learning-hero__feature { right: 18px; bottom: -20px; width: 92px; border-radius: 11px; }.learning-hero__feature-tag { top: 8px; left: 8px; padding: 3px 5px; font-size: 8px; }.learning-hero__feature-title { right: 8px; bottom: 9px; left: 8px; font-size: 10px; }
  .learning-center.lc-home .wrapper-category { padding: 18px !important; border-radius: 16px !important; }.learning-center.lc-home .category-list { margin: -18px -18px 20px !important; padding: 12px 18px !important; border-radius: 16px 16px 0 0; }.learning-center.lc-home .article-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px !important; }.learning-center.lc-home .article-item .title { font-size: 13px !important; }.learning-center.lc-home .wrapper-title { padding-bottom: 13px !important; font-size: 19px !important; }
}

/* Preserve the original numbered, nested article outline after all legacy overrides. */
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list li {
  position: relative;
  min-height: 0;
  margin: 2px 0;
  list-style: none !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level1 { counter-reset: lc-toc-1; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level2 { counter-reset: lc-toc-2; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level3 { counter-reset: lc-toc-3; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level4 { counter-reset: lc-toc-4; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level5 { counter-reset: lc-toc-5; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level1 > li { counter-increment: lc-toc-1; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level2 > li { counter-increment: lc-toc-2; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level3 > li { counter-increment: lc-toc-3; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level4 > li { counter-increment: lc-toc-4; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level5 > li { counter-increment: lc-toc-5; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list a {
  position: relative;
  display: block;
  box-sizing: border-box;
  min-height: 30px;
  padding: 5px 8px 5px 32px !important;
  overflow: visible !important;
  line-height: 1.55;
  text-overflow: clip !important;
  white-space: normal !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level2 a { padding-left: 54px !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level3 a { padding-left: 76px !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level4 a { padding-left: 98px !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level5 a { padding-left: 120px !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list a::before {
  position: absolute;
  top: 5px;
  display: block !important;
  width: auto;
  height: auto;
  margin: 0 !important;
  color: currentColor;
  line-height: inherit;
  background: transparent !important;
  border-radius: 0;
  content: "" !important;
}
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level1 > li > a::before { left: 9px; content: counter(lc-toc-1) "." !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level2 > li > a::before { left: 29px; content: counter(lc-toc-1) "." counter(lc-toc-2) !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level3 > li > a::before { left: 49px; content: counter(lc-toc-1) "." counter(lc-toc-2) "." counter(lc-toc-3) !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level4 > li > a::before { left: 69px; content: counter(lc-toc-1) "." counter(lc-toc-2) "." counter(lc-toc-3) "." counter(lc-toc-4) !important; }
body.learning-center.lc-article.lc-article-prototype .tocs .tocs-list.level5 > li > a::before { left: 89px; content: counter(lc-toc-1) "." counter(lc-toc-2) "." counter(lc-toc-3) "." counter(lc-toc-4) "." counter(lc-toc-5) !important; }

/* The hero's middle becomes a useful recommendation rather than unused decoration. */
.learning-hero__spotlight {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 51%;
  display: grid;
  gap: 7px;
  width: min(260px, 24%);
  padding: 4px 0 4px 22px;
  color: #3f416c;
  text-decoration: none;
  border-left: 1px solid rgba(81, 73, 165, .28);
  transform: translateY(-50%);
}
.learning-hero__spotlight span { color: #7567da; font-size: 11px; font-weight: 750; letter-spacing: .08em; }
.learning-hero__spotlight strong { color: #3c4168; font-size: 17px; font-weight: 720; line-height: 1.42; }
.learning-hero__spotlight em { color: #6c7198; font-size: 13px; font-style: normal; font-weight: 600; }
.learning-hero__spotlight em b { display: inline-block; margin-left: 4px; color: var(--lc-accent); font-size: 16px; transition: transform .18s ease; }
.learning-hero__spotlight:hover { color: inherit; text-decoration: none; }
.learning-hero__spotlight:hover strong { color: var(--lc-accent-dark); }
.learning-hero__spotlight:hover em b { transform: translateX(4px); }
.learning-hero__spotlight--pending { cursor: default; }
.learning-hero__spotlight--pending em { color: #8b90a8; }
.lc-section-practice .learning-hero__spotlight { border-left-color: rgba(175, 82, 49, .25); }
.lc-section-practice .learning-hero__spotlight span { color: #c7775e; }.lc-section-practice .learning-hero__spotlight strong { color: #795146; }.lc-section-practice .learning-hero__spotlight em { color: #987064; }
.lc-section-vocation .learning-hero__spotlight { border-left-color: rgba(12, 138, 122, .24); }.lc-section-vocation .learning-hero__spotlight span { color: #4a9b90; }.lc-section-vocation .learning-hero__spotlight strong { color: #376c68; }
.lc-section-case .learning-hero__spotlight { border-left-color: rgba(191, 124, 17, .24); }.lc-section-case .learning-hero__spotlight span { color: #b4843b; }.lc-section-case .learning-hero__spotlight strong { color: #786343; }

/* Preserve every expanded group, but give the course tree a calmer reading rhythm. */
body.learning-center.lc-article.lc-article-prototype .course-navigation__title { margin-bottom: 20px; }
body.learning-center.lc-article.lc-article-prototype .course-navigation__group {
  margin: 0 0 18px;
  padding: 0 0 16px;
  border-bottom: 1px solid #e9edf4;
}
body.learning-center.lc-article.lc-article-prototype .course-navigation__group:last-child { margin-bottom: 0; border-bottom: 0; }
body.learning-center.lc-article.lc-article-prototype .course-navigation__group summary { padding: 0 10px 10px; }
body.learning-center.lc-article.lc-article-prototype .course-navigation__article {
  margin: 0 0 3px 8px;
  padding: 6px 10px 7px 12px;
  line-height: 1.62;
}

@media (max-width: 900px) {
  .learning-hero__spotlight { display: none; }
}