:root {
  --kc-ink: oklch(28% 0.035 245);
  --kc-muted: oklch(49% 0.03 244);
  --kc-blue: oklch(55% 0.19 250);
  --kc-blue-deep: oklch(39% 0.15 250);
  --kc-sky: oklch(92% 0.045 238);
  --kc-paper: oklch(99% 0.006 240);
  --kc-line: oklch(89% 0.018 240);
  --kc-warm: oklch(76% 0.14 75);
  --kc-radius: 18px;
  --kc-shadow: 0 18px 55px oklch(31% 0.05 245 / 0.09);
}

.knowledge-center,
.knowledge-page {
  margin: 0;
  background: var(--kc-paper);
  color: var(--kc-ink);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  line-height: 1.75;
}

.knowledge-center .page-head-box,
.knowledge-page .page-head-box {
  background: oklch(99% 0.006 240 / .96) !important;
  border-bottom-color: var(--kc-line) !important;
  box-shadow: 0 2px 12px oklch(31% 0.04 245 / .07);
  backdrop-filter: blur(14px);
}
.knowledge-center .page-head-box .nav-box > ul > li > a,
.knowledge-page .page-head-box .nav-box > ul > li > a { color: var(--kc-ink) !important; }
.knowledge-center .page-head-box .icon-cecaidanxiala,
.knowledge-page .page-head-box .icon-cecaidanxiala { color: var(--kc-muted) !important; }
.knowledge-center .page-head-box .head-ope-box .btn-group .login,
.knowledge-page .page-head-box .head-ope-box .btn-group .login {
  border-color: var(--kc-blue) !important;
  color: var(--kc-blue-deep) !important;
}

.knowledge-center main,
.kc-page-shell {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

.kc-skip {
  position: fixed;
  z-index: 99999;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  transform: translateY(-150%);
  border-radius: 10px;
  background: var(--kc-blue-deep);
  color: oklch(98% 0.01 240);
}

.kc-skip:focus { transform: translateY(0); }

.kc-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  padding: 30px 0 18px;
  color: var(--kc-muted);
  font-size: 14px;
}

.kc-breadcrumb a { color: var(--kc-blue-deep); text-decoration: none; }
.kc-breadcrumb a:hover { text-decoration: underline; }

.kc-kicker {
  margin: 0 0 13px;
  color: var(--kc-blue-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
}

.kc-hub-hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
  gap: clamp(40px, 7vw, 96px);
  min-height: 500px;
  padding: clamp(52px, 7vw, 88px);
  border-radius: 28px;
  background:
    radial-gradient(circle at 88% 10%, oklch(75% 0.13 222 / .32), transparent 34%),
    linear-gradient(135deg, oklch(33% 0.12 249), oklch(45% 0.16 245));
  box-shadow: var(--kc-shadow);
  color: oklch(97% 0.012 240);
}

.kc-hub-hero::after {
  content: "";
  position: absolute;
  width: 430px;
  height: 430px;
  right: -180px;
  bottom: -280px;
  border: 1px solid oklch(94% 0.03 235 / .25);
  border-radius: 50%;
  box-shadow: 0 0 0 55px oklch(94% 0.03 235 / .06), 0 0 0 112px oklch(94% 0.03 235 / .04);
}

.kc-hub-copy,
.kc-search { position: relative; z-index: 1; }
.kc-hub-copy { align-self: center; }
.kc-hub-copy .kc-kicker { color: oklch(84% 0.09 224); }

.kc-hub-copy h1 {
  max-width: 11em;
  margin: 0;
  color: oklch(99% 0.006 240);
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.12;
  letter-spacing: -.045em;
}

.kc-hub-copy h1 span { color: oklch(84% 0.12 222); }
.kc-hub-copy > p:last-child { max-width: 590px; margin: 26px 0 0; color: oklch(91% 0.025 235); font-size: 18px; }

.kc-search {
  align-self: center;
  padding: 30px;
  border: 1px solid oklch(93% 0.04 235 / .23);
  border-radius: 22px;
  background: oklch(26% 0.09 248 / .72);
}

.kc-search label { display: block; margin-bottom: 12px; font-size: 19px; font-weight: 700; }
.kc-search > div, .kc-local-search > div { display: flex; gap: 10px; }
.kc-search input, .kc-local-search input {
  min-width: 0;
  flex: 1;
  height: 54px;
  padding: 0 17px;
  border: 1px solid oklch(83% 0.04 235);
  border-radius: 12px;
  background: oklch(99% 0.006 240);
  color: var(--kc-ink);
  font: inherit;
  outline: none;
}
.kc-search input:focus, .kc-local-search input:focus { border-color: var(--kc-blue); box-shadow: 0 0 0 4px oklch(63% 0.16 245 / .16); }
.kc-search button, .kc-local-search button {
  min-width: 94px;
  border: 0;
  border-radius: 12px;
  background: oklch(77% 0.15 220);
  color: oklch(25% 0.07 248);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.kc-search > p { margin: 13px 0 0; color: oklch(84% 0.035 235); font-size: 13px; }

.kc-hub-stats {
  position: absolute;
  z-index: 2;
  left: clamp(52px, 7vw, 88px);
  right: clamp(52px, 7vw, 88px);
  bottom: 26px;
  display: flex;
  gap: 34px;
}
.kc-hub-stats div { display: flex; align-items: baseline; gap: 8px; }
.kc-hub-stats strong { font-size: 23px; color: oklch(90% 0.1 220); }
.kc-hub-stats span { color: oklch(86% 0.03 235); font-size: 13px; }

.kc-section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 30px;
}
.kc-section-heading h2 { margin: 0; font-size: clamp(30px, 3.2vw, 44px); line-height: 1.24; letter-spacing: -.03em; }
.kc-section-heading > p { max-width: 560px; margin: 0; color: var(--kc-muted); }

.kc-search-results,
.kc-centers,
.kc-paths { padding: clamp(72px, 8vw, 104px) 0 0; }
.kc-search-results[hidden] { display: none; }
.kc-search-results .kc-section-heading button { border: 0; background: transparent; color: var(--kc-blue-deep); cursor: pointer; font: inherit; }
.kc-search-results > ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--kc-line); }
.kc-search-results li a { display: grid; grid-template-columns: 128px 1fr auto; gap: 24px; align-items: start; padding: 20px 0; border-bottom: 1px solid var(--kc-line); color: var(--kc-ink); text-decoration: none; }
.kc-search-results li a:hover strong { color: var(--kc-blue-deep); }
.kc-search-results li small { color: var(--kc-muted); }

.kc-center-panel {
  display: grid;
  grid-template-columns: minmax(320px, .76fr) minmax(0, 1.24fr);
  gap: clamp(32px, 6vw, 78px);
  padding: 44px 0;
  border-top: 1px solid var(--kc-line);
}
.kc-center-panel:last-child { border-bottom: 1px solid var(--kc-line); }
.kc-center-panel h2 { margin: 0 0 16px; font-size: clamp(28px, 3vw, 40px); line-height: 1.25; }
.kc-center-panel > div > p:not(.kc-kicker) { color: var(--kc-muted); }
.kc-center-panel > div > a { display: inline-flex; gap: 15px; margin-top: 14px; color: var(--kc-blue-deep); font-weight: 700; text-decoration: none; }
.kc-center-panel ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 38px; margin: 0; padding: 0; list-style: none; }
.kc-center-panel li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--kc-line); }
.kc-center-panel li span { font-size: 14px; }
.kc-center-panel li strong { color: var(--kc-blue-deep); font-size: 14px; }

.kc-path-list { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--kc-line); border-bottom: 1px solid var(--kc-line); }
.kc-path-list a { min-width: 0; padding: 30px 24px 34px; color: var(--kc-ink); text-decoration: none; }
.kc-path-list a + a { border-left: 1px solid var(--kc-line); }
.kc-path-list span { display: block; margin-bottom: 25px; color: var(--kc-blue); font-weight: 700; }
.kc-path-list strong, .kc-path-list small { display: block; }
.kc-path-list strong { font-size: 18px; }
.kc-path-list small { margin-top: 8px; color: var(--kc-muted); }
.kc-path-list a:hover { background: var(--kc-sky); }

.kc-support-strip {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin: clamp(72px, 9vw, 120px) 0;
  padding: 42px 46px;
  border-radius: var(--kc-radius);
  background: oklch(94% 0.03 240);
}
.kc-support-strip h2 { margin: 0; font-size: 30px; }
.kc-support-strip p:not(.kc-kicker) { margin: 8px 0 0; color: var(--kc-muted); }
.kc-support-strip > div:last-child { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.kc-support-strip a { padding: 11px 16px; border: 1px solid var(--kc-line); border-radius: 10px; background: var(--kc-paper); color: var(--kc-blue-deep); text-decoration: none; }
.kc-support-strip a.primary { border-color: var(--kc-blue); background: var(--kc-blue); color: oklch(98% 0.01 240); }

.kc-center-hero { padding: clamp(38px, 6vw, 72px) 0 46px; border-bottom: 1px solid var(--kc-line); }
.kc-center-hero h1 { max-width: 920px; margin: 0; font-size: clamp(38px, 5vw, 64px); line-height: 1.15; letter-spacing: -.04em; }
.kc-center-hero > p:not(.kc-kicker) { max-width: 820px; margin: 22px 0 0; color: var(--kc-muted); font-size: 18px; }
.kc-center-meta { display: flex; gap: 10px; margin-top: 28px; }
.kc-center-meta span { padding: 6px 11px; border-radius: 999px; background: var(--kc-sky); color: var(--kc-blue-deep); font-size: 13px; font-weight: 700; }

.kc-local-search { padding: 34px 0; }
.kc-local-search label { display: block; margin-bottom: 10px; font-weight: 700; }
.kc-local-search > div { max-width: 760px; }
.kc-local-search [data-center-search-status] { min-height: 1.75em; margin: 8px 0 0; color: var(--kc-muted); font-size: 14px; }

.kc-module-nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; overflow: hidden; border: 1px solid var(--kc-line); border-radius: var(--kc-radius); background: var(--kc-line); }
.kc-module-nav a { display: grid; grid-template-columns: 34px 1fr auto; gap: 10px; align-items: center; min-height: 70px; padding: 13px 16px; background: var(--kc-paper); color: var(--kc-ink); text-decoration: none; }
.kc-module-nav a:hover { background: var(--kc-sky); }
.kc-module-nav a > span { color: var(--kc-blue); font-size: 13px; font-weight: 700; }
.kc-module-nav small { color: var(--kc-muted); }

.kc-module-stack { padding: 48px 0 96px; }
.kc-module { border-top: 1px solid var(--kc-line); }
.kc-module:last-child { border-bottom: 1px solid var(--kc-line); }
.kc-module > summary { display: grid; grid-template-columns: 62px 1fr auto; gap: 18px; align-items: center; padding: 25px 4px; cursor: pointer; list-style: none; }
.kc-module > summary::-webkit-details-marker { display: none; }
.kc-module-number { color: var(--kc-blue); font-weight: 700; }
.kc-module > summary strong, .kc-module > summary small { display: block; }
.kc-module > summary strong { font-size: 23px; line-height: 1.4; }
.kc-module > summary small { margin-top: 4px; color: var(--kc-muted); }
.kc-module-toggle { color: var(--kc-blue-deep); font-size: 13px; }
.kc-module[open] .kc-module-toggle { font-size: 0; }
.kc-module[open] .kc-module-toggle::after { content: "收起"; font-size: 13px; }
.kc-module-body { padding: 0 0 36px 80px; }
.kc-topic + .kc-topic { margin-top: 40px; }
.kc-topic-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 8px; }
.kc-topic-heading h3 { margin: 0; font-size: 18px; }
.kc-topic-heading span { color: var(--kc-muted); font-size: 13px; }
.kc-article-list { margin: 0; padding: 0; list-style: none; }
.kc-article-list li a { display: grid; grid-template-columns: 94px 1fr 30px; gap: 18px; align-items: start; padding: 16px 0; border-bottom: 1px solid var(--kc-line); color: var(--kc-ink); text-decoration: none; }
.kc-article-list li a:hover strong { color: var(--kc-blue-deep); }
.kc-row-id { padding-top: 3px; color: var(--kc-blue); font-size: 12px; font-weight: 700; }
.kc-row-copy strong, .kc-row-copy small { display: block; }
.kc-row-copy strong { font-size: 16px; line-height: 1.55; }
.kc-row-copy small { margin-top: 4px; color: var(--kc-muted); line-height: 1.6; }
.kc-row-arrow { color: var(--kc-blue); }
.kc-topic[hidden], .kc-article-list li[hidden] { display: none; }

.kc-reading-layout { display: grid; grid-template-columns: minmax(0, 820px) minmax(240px, 300px); gap: clamp(40px, 6vw, 76px); align-items: start; padding-bottom: 90px; }
.kc-article { min-width: 0; padding: 32px 0; }
.kc-article > h1 { margin: 0 0 10px; color: var(--kc-ink); font-size: clamp(34px, 4.4vw, 54px); line-height: 1.22; letter-spacing: -.035em; }
.kc-article > .caption { margin-bottom: 28px; color: var(--kc-muted); }
.kc-article > p, .kc-article > ul, .kc-article > ol, .kc-article > table, .kc-article > div, .kc-article > section, .kc-article > nav { max-width: 74ch; }
.kc-article h2 { margin: 54px 0 18px; color: var(--kc-ink); font-size: clamp(25px, 2.7vw, 33px); line-height: 1.35; }
.kc-article h3 { margin-top: 34px; font-size: 21px; }
.kc-article p, .kc-article li { font-size: 17px; }
.kc-article a { color: var(--kc-blue-deep); text-underline-offset: 3px; }
.kc-article img { display: block; width: auto; max-width: 100%; max-height: 720px; margin: 28px auto 12px; border: 1px solid var(--kc-line); border-radius: 12px; object-fit: contain; box-shadow: 0 12px 35px oklch(30% 0.03 245 / .08); }
.kc-article video { width: 100%; margin-top: 18px; border-radius: 14px; background: oklch(24% 0.04 245); }
.kc-article table { width: 100% !important; border-collapse: collapse !important; }
.kc-article th { background: var(--kc-sky); }
.kc-article th, .kc-article td { padding: 12px !important; border: 1px solid var(--kc-line) !important; text-align: left; vertical-align: top; }
.kc-article details { border: 1px solid var(--kc-line); border-radius: 12px; background: oklch(97% 0.012 240); }
.kc-article details > summary { padding: 14px 17px; cursor: pointer; font-weight: 700; }
.kc-article details > *:not(summary) { margin-left: 17px; margin-right: 17px; }
.kc-article .links { display: flex; flex-wrap: wrap; gap: 8px; }
.kc-article .links a { padding: 7px 11px; border-radius: 8px; background: var(--kc-sky); text-decoration: none; font-size: 14px; }
.kc-article .card { padding: 22px; border: 1px solid var(--kc-line); border-radius: 14px; background: oklch(97% 0.012 240); }

.kc-article-aside { position: sticky; top: 96px; margin-top: 32px; padding: 24px 0; border-top: 1px solid var(--kc-line); border-bottom: 1px solid var(--kc-line); }
.kc-article-aside h2 { margin: 0 0 15px; font-size: 18px; }
.kc-article-aside dl { margin: 0; }
.kc-article-aside dt { margin-top: 13px; color: var(--kc-muted); font-size: 12px; }
.kc-article-aside dd { margin: 2px 0 0; font-size: 14px; }
.kc-aside-related { margin-top: 26px; }
.kc-aside-related p { display: flex; flex-wrap: wrap; gap: 6px; }
.kc-aside-related a { padding: 4px 8px; border-radius: 7px; background: var(--kc-sky); color: var(--kc-blue-deep); text-decoration: none; font-size: 12px; }
.kc-cta-link { display: block; margin-top: 28px; padding: 11px 14px; border-radius: 10px; background: var(--kc-blue); color: oklch(98% 0.01 240); text-align: center; text-decoration: none; font-weight: 700; }

@media (max-width: 960px) {
  .kc-hub-hero { grid-template-columns: 1fr; min-height: 0; padding-bottom: 110px; }
  .kc-center-panel { grid-template-columns: 1fr; }
  .kc-module-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kc-path-list { grid-template-columns: repeat(2, 1fr); }
  .kc-path-list a:nth-child(3) { border-left: 0; border-top: 1px solid var(--kc-line); }
  .kc-path-list a:nth-child(4) { border-top: 1px solid var(--kc-line); }
  .kc-reading-layout { grid-template-columns: 1fr; }
  .kc-article-aside { position: static; order: -1; display: none; }
}

@media (max-width: 680px) {
  .knowledge-center main, .kc-page-shell { width: min(100% - 28px, 1240px); }
  .kc-breadcrumb { padding-top: 20px; }
  .kc-hub-hero { padding: 38px 22px 112px; border-radius: 18px; }
  .kc-hub-copy h1 { font-size: 39px; }
  .kc-hub-copy > p:last-child { font-size: 16px; }
  .kc-search { padding: 20px; }
  .kc-search > div, .kc-local-search > div { flex-direction: column; }
  .kc-search button, .kc-local-search button { height: 48px; }
  .kc-hub-stats { left: 22px; right: 22px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .kc-hub-stats div { display: block; min-width: 0; }
  .kc-hub-stats strong, .kc-hub-stats span { display: block; white-space: nowrap; }
  .kc-hub-stats strong { font-size: 18px; }
  .kc-hub-stats span { margin-top: 2px; font-size: 10px; }
  .kc-section-heading, .kc-support-strip { align-items: flex-start; flex-direction: column; }
  .kc-center-panel ol { grid-template-columns: 1fr; }
  .kc-path-list { grid-template-columns: 1fr; }
  .kc-path-list a + a { border-left: 0; border-top: 1px solid var(--kc-line); }
  .kc-support-strip { padding: 30px 24px; }
  .kc-support-strip > div:last-child { justify-content: flex-start; }
  .kc-module-nav { grid-template-columns: 1fr; }
  .kc-module > summary { grid-template-columns: 38px 1fr auto; gap: 10px; }
  .kc-module > summary strong { font-size: 18px; }
  .kc-module-body { padding-left: 0; }
  .kc-article-list li a { grid-template-columns: 1fr 24px; }
  .kc-row-id { grid-column: 1 / -1; }
  .kc-row-copy small { display: none; }
  .kc-article { padding-top: 18px; }
  .kc-article > h1 { font-size: 32px; }
  .kc-article p, .kc-article li { font-size: 16px; }
  .kc-article table { min-width: 620px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

/* Keep the knowledge mega menu compact even when its three columns have different item counts. */
.knowledge-center .dropdown-menu-knowledge,
.knowledge-page .dropdown-menu-knowledge { align-items: start; }
.knowledge-center .dropdown-menu-knowledge .menu-item,
.knowledge-page .dropdown-menu-knowledge .menu-item { align-self: start; }
.knowledge-center .dropdown-menu-knowledge .menu-tit[aria-hidden="true"],
.knowledge-page .dropdown-menu-knowledge .menu-tit[aria-hidden="true"] { visibility: hidden; }
.knowledge-center .dropdown-menu-knowledge .menu-list,
.knowledge-page .dropdown-menu-knowledge .menu-list { display: flex; flex-direction: column; }
.knowledge-center .dropdown-menu-knowledge .menu-list > a,
.knowledge-page .dropdown-menu-knowledge .menu-list > a { display: block; }
.knowledge-center .dropdown-menu-knowledge .menu-card,
.knowledge-page .dropdown-menu-knowledge .menu-card { margin-bottom: 8px !important; }