:root {
  --seo-ink: #211d2b;
  --seo-muted: #6f697b;
  --seo-primary: #6437ea;
  --seo-primary-soft: #f1edff;
  --seo-border: #e9e3f2;
  --seo-surface: #fdfaff;
  --seo-white: #ffffff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.seo-page {
  margin: 0;
  background: var(--seo-surface);
  color: var(--seo-ink);
  font-family: "Plus Jakarta Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.seo-site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(100, 55, 234, .12);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(16px);
}

.seo-site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1120px, calc(100% - 40px));
  min-height: 64px;
  margin: 0 auto;
}

.seo-brand {
  color: var(--seo-primary);
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.seo-brand__divider { margin: 0 3px; color: #a39caf; font-weight: 400; }

.seo-site-nav { display: flex; align-items: center; gap: 20px; }

.seo-site-nav a {
  color: var(--seo-muted);
  font-size: 14px;
  text-decoration: none;
}

.seo-site-nav a:hover,
.seo-site-nav a:focus-visible { color: var(--seo-primary); }

.seo-site-nav__cta {
  padding: 9px 16px;
  border-radius: 999px;
  background: #f8c61c;
  color: #282116 !important;
  font-weight: 700;
}

.seo-article-shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.seo-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: var(--seo-muted);
  font-size: 13px;
}

.seo-breadcrumb a { color: var(--seo-primary); text-decoration: none; }
.seo-breadcrumb a:hover { text-decoration: underline; }

.seo-article {
  overflow: hidden;
  border: 1px solid var(--seo-border);
  border-radius: 12px;
  background: var(--seo-white);
  box-shadow: 0 16px 48px rgba(51, 34, 92, .06);
}

.seo-article__header {
  padding: 46px 56px 34px;
  border-bottom: 1px solid #f0ecf5;
}

.seo-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 10px;
  border: 1px solid #ddd2ff;
  border-radius: 999px;
  background: var(--seo-primary-soft);
  color: var(--seo-primary);
  font-size: 12px;
  font-weight: 700;
}

.seo-article h1 {
  margin: 18px 0 14px;
  color: var(--seo-ink);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.25;
  letter-spacing: 0;
}

.seo-article__lead {
  max-width: 760px;
  margin: 0;
  color: var(--seo-muted);
  font-size: 17px;
  line-height: 1.85;
}

.seo-article__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-top: 22px;
  color: #8b8495;
  font-size: 13px;
}

.seo-article__body { padding: 42px 56px 52px; }

.seo-article__body h2 {
  margin: 42px 0 14px;
  padding-top: 8px;
  color: var(--seo-ink);
  font-size: 25px;
  line-height: 1.4;
}

.seo-article__body h2:first-child { margin-top: 0; }

.seo-article__body h3 {
  margin: 28px 0 10px;
  color: #332c45;
  font-size: 18px;
  line-height: 1.5;
}

.seo-article__body p,
.seo-article__body li {
  color: #514b5d;
  font-size: 16px;
  line-height: 1.9;
}

.seo-article__body > p {
  margin: 0 0 8px;
  text-indent: 2em;
}

.seo-article__body > p:last-of-type { margin-bottom: 0; }

.seo-article__body ul,
.seo-article__body ol { margin: 0 0 22px; padding-left: 1.5em; }
.seo-article__body li + li { margin-top: 7px; }

.seo-article__body a { color: var(--seo-primary); text-decoration: underline; text-underline-offset: 2px; }

.seo-article__body strong { color: #332b43; font-weight: 700; }

.seo-article__body blockquote {
  margin: 22px 0;
  padding: 16px 20px;
  border-left: 4px solid #f0bd1d;
  background: #fffaf0;
  color: #5e5136;
}

.seo-article__body blockquote p { color: inherit; }

.seo-article__body code {
  padding: 2px 6px;
  border-radius: 4px;
  background: #f2eff7;
  color: #4b347f;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .92em;
}

.seo-article__body pre {
  overflow-x: auto;
  margin: 22px 0;
  padding: 18px 20px;
  border-radius: 8px;
  background: #25222e;
  color: #f5f1ff;
  line-height: 1.65;
}

.seo-article__body pre code { padding: 0; background: transparent; color: inherit; }

.seo-article__body table {
  width: 100%;
  margin: 22px 0 28px;
  border-collapse: collapse;
  font-size: 14px;
}

.seo-article__body th,
.seo-article__body td {
  padding: 12px 13px;
  border: 1px solid var(--seo-border);
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
}

.seo-article__body th { background: #f7f3ff; color: #382d50; font-weight: 700; }
.seo-article__body td { color: #554e60; }

.seo-article__faq details {
  margin: 10px 0;
  border: 1px solid var(--seo-border);
  border-radius: 8px;
  background: #fff;
}

.seo-article__faq summary {
  cursor: pointer;
  padding: 14px 16px;
  color: #342d43;
  font-weight: 700;
  line-height: 1.6;
}

.seo-article__faq summary::marker { color: var(--seo-primary); }
.seo-article__faq details p { margin: 0; padding: 0 16px 16px; }

.seo-article__cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 36px;
  padding: 24px 28px;
  border: 1px solid #e7dcff;
  border-radius: 10px;
  background: #faf8ff;
}

.seo-article__cta p { margin: 0; color: #554d63; line-height: 1.7; }

.seo-button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--seo-primary);
  color: #fff !important;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none !important;
}

.seo-button:hover { background: #4f2cc0; }

.seo-related {
  margin-top: 24px;
  padding: 28px 32px;
  border-top: 1px solid var(--seo-border);
}

.seo-related h2 { margin: 0 0 15px; color: var(--seo-ink); font-size: 20px; }
.seo-related ul { display: grid; gap: 9px; margin: 0; padding-left: 1.2em; }
.seo-related a { color: var(--seo-primary); line-height: 1.6; }

.seo-footer {
  border-top: 1px solid var(--seo-border);
  background: #fff;
}

.seo-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0;
  color: #898291;
  font-size: 13px;
}

.seo-footer a { color: var(--seo-muted); text-decoration: none; }
.seo-footer a:hover { color: var(--seo-primary); text-decoration: underline; }

/* Knowledge-base directory */
.seo-docs-shell { width: min(1120px, calc(100% - 32px)); margin: 0 auto; padding: 46px 0 78px; }
.seo-docs-hero { max-width: 760px; margin-bottom: 34px; }
.seo-docs-hero h1 { margin: 0 0 12px; font-size: clamp(32px, 4vw, 48px); line-height: 1.25; }
.seo-docs-hero p { margin: 0; color: var(--seo-muted); font-size: 17px; line-height: 1.85; }
.seo-docs-section { margin-top: 38px; }
.seo-docs-section h2 { margin: 0 0 15px; font-size: 24px; }
.seo-docs-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.seo-doc-card {
  display: flex;
  flex-direction: column;
  min-height: 185px;
  padding: 22px 24px;
  border: 1px solid var(--seo-border);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(51, 34, 92, .04);
  color: inherit;
  text-decoration: none;
}
.seo-doc-card:hover { border-color: #c9b8ff; box-shadow: 0 14px 30px rgba(100, 55, 234, .10); }
.seo-doc-card__tag { color: var(--seo-primary); font-size: 12px; font-weight: 700; }
.seo-doc-card h3 { margin: 10px 0 8px; color: var(--seo-ink); font-size: 18px; line-height: 1.5; }
.seo-doc-card p { flex: 1; margin: 0; color: var(--seo-muted); font-size: 14px; line-height: 1.75; }
.seo-doc-card__read { margin-top: 14px; color: var(--seo-primary); font-size: 13px; font-weight: 700; }
.seo-docs-product { margin-top: 44px; padding: 26px 28px; border: 1px solid var(--seo-border); border-radius: 10px; background: #fff; }
.seo-docs-product h2 { margin: 0 0 12px; font-size: 22px; }
.seo-docs-product p, .seo-docs-product li { color: var(--seo-muted); line-height: 1.8; }
.seo-docs-product ul { margin: 0; padding-left: 1.3em; }
.seo-docs-product li + li { margin-top: 6px; }

@media (max-width: 720px) {
  .seo-site-header__inner { width: min(100% - 24px, 1120px); }
  .seo-site-nav { gap: 12px; }
  .seo-site-nav a:not(.seo-site-nav__cta) { display: none; }
  .seo-article-shell { width: min(100% - 20px, 980px); padding-top: 20px; }
  .seo-article__header, .seo-article__body { padding-right: 22px; padding-left: 22px; }
  .seo-article__header { padding-top: 32px; }
  .seo-article__body { padding-top: 30px; }
  .seo-article__body table { display: block; overflow-x: auto; white-space: normal; }
  .seo-article__cta { flex-direction: column; align-items: flex-start; }
  .seo-related { padding-right: 22px; padding-left: 22px; }
  .seo-docs-shell { width: min(100% - 20px, 1120px); padding-top: 30px; }
  .seo-docs-grid { grid-template-columns: 1fr; }
}