html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: #202124;
  background: #f7f9fb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.8;
}

a {
  color: #1677c7;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.manual-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid #e4e9f0;
  backdrop-filter: blur(12px);
}

.manual-logo img {
  display: block;
  width: 150px;
  height: auto;
}

.manual-header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  white-space: nowrap;
}

.manual-register-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  color: #fff;
  background: #1677c7;
  border-radius: 6px;
}

.manual-register-link:hover {
  color: #fff;
  text-decoration: none;
  background: #0f65ad;
}

.manual-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 32px 72px;
}

.manual-sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
  max-height: calc(100vh - 120px);
  overflow: auto;
  padding-right: 8px;
}

.manual-sidebar-title {
  display: block;
  margin-bottom: 18px;
  color: #202124;
  font-weight: 700;
}

.manual-sidebar-nav {
  display: grid;
  gap: 18px;
}

.manual-sidebar-section {
  padding-bottom: 16px;
  border-bottom: 1px solid #e8edf3;
}

.manual-sidebar-section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.manual-sidebar-section-title {
  margin: 0 0 8px;
  padding: 0;
  color: #15181d;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.45;
}

.manual-sidebar-section-links {
  display: grid;
  gap: 1px;
  margin-left: 2px;
  padding-left: 10px;
  border-left: 2px solid #dce7f1;
}

.manual-sidebar-section-links a {
  display: block;
  padding: 6px 8px;
  color: #5d6673;
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.45;
}

.manual-sidebar-section-links a:hover,
.manual-sidebar-section-links a.is-active {
  color: #0f65ad;
  background: #eaf4fc;
  text-decoration: none;
}

.manual-sidebar-section-links a.is-active {
  font-weight: 700;
  box-shadow: inset 2px 0 0 #1677c7;
}

.manual-main {
  min-width: 0;
  background: #fff;
  border: 1px solid #e4e9f0;
  border-radius: 8px;
}

.manual-index,
.manual-article {
  padding: 48px;
}

.manual-kicker {
  margin: 0 0 8px;
  color: #1677c7;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
}

.manual-index h1,
.manual-article-header h1 {
  margin: 0;
  color: #15181d;
  font-size: 36px;
  line-height: 1.35;
  letter-spacing: 0;
}

.manual-lead,
.manual-article-header p {
  max-width: 760px;
  margin: 18px 0 0;
  color: #4a5563;
  font-size: 16px;
}

.manual-updated,
.manual-article-header time {
  display: block;
  margin-top: 14px;
  color: #6b7280;
  font-size: 13px;
}

.manual-index-featured {
  margin-top: 34px;
}

.manual-index h2 {
  margin: 0;
  color: #15181d;
  font-size: 22px;
  line-height: 1.45;
  letter-spacing: 0;
}

.manual-featured-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.manual-featured-link {
  display: grid;
  gap: 4px;
  min-height: 112px;
  padding: 16px;
  color: #202124;
  background: #f8fbfe;
  border: 1px solid #dce7f1;
  border-radius: 8px;
}

.manual-featured-link:hover {
  text-decoration: none;
  border-color: #9cc9ec;
}

.manual-featured-link strong {
  font-size: 15px;
  line-height: 1.55;
}

.manual-featured-link small {
  color: #5d6673;
  font-size: 13px;
  line-height: 1.6;
}

.manual-index-sections {
  display: grid;
  gap: 42px;
  margin-top: 44px;
}

.manual-index-section-header {
  display: grid;
  gap: 6px;
}

.manual-page-list {
  margin-top: 14px;
  border-top: 1px solid #e6ebf1;
}

.manual-page-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: 18px 0;
  color: #202124;
  border-bottom: 1px solid #e6ebf1;
}

.manual-page-row:hover {
  text-decoration: none;
}

.manual-page-row strong {
  display: block;
  font-size: 16px;
}

.manual-page-row small {
  display: block;
  margin-top: 4px;
  color: #5d6673;
  font-size: 13px;
  line-height: 1.6;
}

.manual-page-row time {
  color: #7b8491;
  font-size: 13px;
  white-space: nowrap;
}

.manual-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  color: #6b7280;
  font-size: 13px;
}

.manual-breadcrumb span::before {
  content: "/";
  margin-right: 8px;
  color: #a2aab5;
}

.manual-article-header {
  padding-bottom: 32px;
  border-bottom: 1px solid #e6ebf1;
}

.manual-article-body {
  padding-top: 32px;
}

.manual-article-body h2 {
  margin: 42px 0 14px;
  color: #15181d;
  font-size: 24px;
  line-height: 1.45;
  letter-spacing: 0;
}

.manual-article-body h3 {
  margin: 30px 0 10px;
  color: #202124;
  font-size: 18px;
  line-height: 1.5;
  letter-spacing: 0;
}

.manual-article-body p {
  margin: 14px 0;
}

.manual-article-body ul,
.manual-article-body ol {
  margin: 14px 0;
  padding-left: 1.4em;
}

.manual-article-body li + li {
  margin-top: 6px;
}

.manual-article-body code {
  padding: 0.12em 0.32em;
  color: #b42318;
  background: #fff1f0;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.manual-code {
  margin: 20px 0;
}

.manual-code pre {
  overflow-x: auto;
  margin: 0;
  padding: 18px;
  color: #ecf2ff;
  background: #1f2937;
  border-radius: 8px;
  line-height: 1.65;
}

.manual-code pre code {
  padding: 0;
  color: inherit;
  background: transparent;
  border-radius: 0;
  font-size: 13px;
}

.manual-code figcaption,
.manual-image figcaption {
  margin-top: 8px;
  color: #6b7280;
  font-size: 13px;
}

.manual-image {
  margin: 22px 0;
}

.manual-image img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid #e1e6ed;
  border-radius: 8px;
}

.manual-embed {
  overflow: hidden;
  margin: 20px 0;
  border: 1px solid #d8dee8;
  border-radius: 8px;
}

.manual-embed iframe {
  display: block;
  width: 100%;
  height: 520px;
  border: 0;
}

.manual-bookmark {
  display: grid;
  gap: 6px;
  margin: 18px 0;
  padding: 16px;
  color: #202124;
  border: 1px solid #d8dee8;
  border-radius: 8px;
}

.manual-bookmark:hover {
  text-decoration: none;
  border-color: #9cc9ec;
}

.manual-bookmark-title {
  font-weight: 700;
}

.manual-bookmark-description {
  display: -webkit-box;
  overflow: hidden;
  color: #5d6673;
  font-size: 13px;
  line-height: 1.6;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.manual-bookmark-url {
  color: #7b8491;
  font-size: 12px;
}

.manual-callout {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  margin: 22px 0;
  padding: 16px;
  background: #f4f7fa;
  border: 1px solid #dfe6ee;
  border-radius: 8px;
}

.manual-callout p:first-child {
  margin-top: 0;
}

.manual-callout p:last-child {
  margin-bottom: 0;
}

.manual-callout-icon {
  line-height: 1.8;
}

.manual-highlight-red {
  color: #b42318;
}

.manual-underline {
  text-decoration: underline;
}

.manual-spacer {
  height: 16px;
}

.manual-article-body hr {
  margin: 32px 0;
  border: 0;
  border-top: 1px solid #e6ebf1;
}

.manual-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px 32px;
  color: #7b8491;
  font-size: 12px;
  text-align: right;
}

@media (max-width: 900px) {
  .manual-header {
    padding: 0 18px;
  }

  .manual-header-nav {
    gap: 12px;
  }

  .manual-shell {
    display: block;
    padding: 24px 16px 56px;
  }

  .manual-sidebar {
    position: static;
    max-height: none;
    margin-bottom: 20px;
    padding: 16px;
    background: #fff;
    border: 1px solid #e4e9f0;
    border-radius: 8px;
  }

  .manual-sidebar-nav {
    grid-template-columns: 1fr;
  }

  .manual-index,
  .manual-article {
    padding: 28px 20px;
  }

  .manual-index h1,
  .manual-article-header h1 {
    font-size: 28px;
  }

  .manual-page-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .manual-featured-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .manual-logo img {
    width: 132px;
  }

  .manual-header-nav a:not(.manual-register-link) {
    display: none;
  }

  .manual-embed iframe {
    height: 420px;
  }
}