:root {
  color-scheme: light;
  --page: #ffffff;
  --surface: #f7f8fa;
  --surface-strong: #eef1f5;
  --ink: #191b1f;
  --muted: #656a73;
  --faint: #8b9099;
  --line: #e6e8eb;
  --line-strong: #d5d9df;
  --accent: #1867c9;
  --accent-soft: #eaf2ff;
  --teal: #087e8b;
  --orange: #d26722;
  --orange-soft: #fff4e8;
  --code: #111827;
  --code-ink: #e5edf7;
  --header-height: 64px;
  color: var(--ink);
  background: var(--page);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 30px); }
body { margin: 0; min-width: 320px; background: var(--page); line-height: 1.75; }
button, input { font: inherit; }
a { color: inherit; text-decoration: none; }
code, pre, kbd { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }

.skipLink {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 12px;
  padding: 8px 12px;
  transform: translateY(-140%);
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
}
.skipLink:focus { transform: translateY(0); }

.docsHeader {
  position: sticky;
  z-index: 30;
  top: 0;
  height: var(--header-height);
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 92%);
  backdrop-filter: blur(18px) saturate(150%);
}
.headerInner {
  display: grid;
  grid-template-columns: 250px minmax(220px, 360px);
  align-items: center;
  justify-content: space-between;
  width: min(1440px, 100%);
  height: 100%;
  margin: 0 auto;
  padding: 0 28px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand strong { font-size: 17px; letter-spacing: 0; }
.brandMeta { color: var(--faint); font-size: 13px; }
.brandMark { display: block; width: 36px; height: 36px; flex: 0 0 36px; border-radius: 8px; }
.searchTrigger {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: #fff;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}
.searchTrigger:hover { border-color: #b8bec7; box-shadow: 0 2px 10px rgb(20 28 40 / 6%); }
.searchTrigger kbd { color: var(--faint); font-size: 11px; }
.iconButton { display: grid; place-items: center; width: 36px; height: 36px; border: 0; background: transparent; cursor: pointer; }
.menuToggle { display: none; justify-self: end; font-size: 20px; }

.docsShell {
  display: grid;
  grid-template-columns: 250px minmax(0, 780px) 210px;
  justify-content: center;
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 0 28px;
}
.sidebar, .toc { position: sticky; top: var(--header-height); height: calc(100vh - var(--header-height)); overflow: auto; scrollbar-width: thin; }
.sidebar { padding: 34px 32px 24px 0; border-right: 1px solid var(--line); }
.navGroup + .navGroup { margin-top: 28px; }
.navGroup h2 { margin: 0 0 9px; color: var(--ink); font-size: 13px; line-height: 1.3; }
.navGroup a { display: block; margin: 2px 0; padding: 7px 10px; border-radius: 6px; color: var(--muted); font-size: 13px; line-height: 1.4; }
.navGroup a:hover { color: var(--ink); background: var(--surface); }
.navGroup a.isActive { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.sidebarFoot { display: grid; gap: 2px; margin-top: 36px; padding: 16px 10px 0; border-top: 1px solid var(--line); color: var(--faint); font-size: 11px; }
.sidebarFoot strong { color: var(--muted); font-weight: 600; }

.content { min-width: 0; }
.docArticle { padding: 74px 64px 120px; }
.docSection { display: block; min-width: 0; animation: sectionIn 220ms ease-out both; }
html.docs-js .docSection { display: none; }
html.docs-js .docSection.isActive { display: block; }
@keyframes sectionIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 13px; font-weight: 700; }
h1, h2, h3 { letter-spacing: 0; line-height: 1.28; }
h1 { margin: 0; font-size: clamp(31px, 4vw, 42px); }
h2 { margin: 52px 0 14px; font-size: 23px; }
h3 { margin: 32px 0 12px; font-size: 18px; }
p { margin: 16px 0; color: #3e4249; }
.lead { max-width: 650px; margin: 12px 0 34px; color: var(--muted); font-size: 19px; line-height: 1.6; }
.titleRow { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
.copyPage { display: inline-flex; align-items: center; gap: 7px; flex: 0 0 auto; min-height: 36px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 6px; background: #fff; color: var(--muted); font-size: 12px; cursor: pointer; }
.copyPage:hover { border-color: #b5bbc4; color: var(--ink); }
.docSection > ul, .docSection > ol { padding-left: 24px; color: #3e4249; }
.docSection li { margin: 10px 0; padding-left: 4px; }
.docSection a:not(.nextPage a) { color: var(--accent); }
.docSection code:not(pre code) { padding: 2px 5px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: #974a14; font-size: .9em; }

.callout { display: grid; grid-template-columns: 24px 1fr; gap: 12px; margin: 30px 0; padding: 18px 20px; border: 1px solid; border-radius: 7px; }
.calloutInfo { border-color: #c9ddf8; background: #f1f6fd; }
.calloutWarning { border-color: #f0d4b8; background: var(--orange-soft); }
.calloutIcon { display: grid; place-items: center; width: 20px; height: 20px; margin-top: 2px; border: 1px solid currentColor; border-radius: 50%; color: var(--accent); font: 700 12px/1 Georgia, serif; }
.calloutWarning .calloutIcon { color: var(--orange); }
.callout strong { font-size: 14px; }
.callout p { margin: 3px 0 0; color: #4f5660; font-size: 13px; line-height: 1.65; }
.featureList { display: grid; gap: 3px; margin: 30px 0; }

.pipeline { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 12px; margin: 26px 0; padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pipeline div { display: grid; gap: 4px; min-width: 0; }
.pipeline span { color: var(--accent); font: 600 11px/1 monospace; }
.pipeline strong { font-size: 14px; }
.pipeline small { color: var(--faint); font-size: 11px; line-height: 1.5; }
.pipeline b { color: var(--line-strong); font-weight: 400; }

.requirements { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.requirements div { display: grid; gap: 5px; padding: 17px; }
.requirements div + div { border-left: 1px solid var(--line); }
.requirements strong { font-size: 13px; }
.requirements span { color: var(--muted); font-size: 12px; line-height: 1.55; }

.codeBlock { overflow: hidden; margin: 20px 0 26px; border-radius: 7px; background: var(--code); color: var(--code-ink); box-shadow: 0 12px 30px rgb(17 24 39 / 10%); }
.codeHead { display: flex; align-items: center; justify-content: space-between; min-height: 38px; padding: 0 12px 0 16px; border-bottom: 1px solid rgb(255 255 255 / 10%); color: #9eabc0; font-size: 11px; }
.codeHead button { border: 0; background: transparent; color: #b8c5d8; font-size: 11px; cursor: pointer; }
.codeHead button:hover { color: #fff; }
pre { overflow-x: auto; margin: 0; padding: 18px 20px 22px; font-size: 13px; line-height: 1.7; tab-size: 2; }

.stepList { display: grid; margin-top: 34px; border-top: 1px solid var(--line); }
.stepList article { display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.stepList article > span { color: var(--accent); font: 600 12px/1.4 monospace; }
.stepList h2 { margin: 0; font-size: 18px; }
.stepList p { margin: 7px 0 0; color: var(--muted); font-size: 14px; }
.productFigure { margin: 48px 0 8px; }
.productFigure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 7px; background: var(--surface); }
.productFigure figcaption { margin-top: 10px; color: var(--faint); font-size: 12px; text-align: center; }

table { width: 100%; margin: 22px 0 28px; border-collapse: collapse; font-size: 13px; }
th, td { padding: 13px 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--surface); font-size: 12px; }
td { color: #4d525b; }

.endpointList { margin: 22px 0; border-top: 1px solid var(--line); }
.endpointList div { display: grid; grid-template-columns: 56px minmax(220px, .8fr) 1fr; gap: 16px; align-items: baseline; padding: 15px 0; border-bottom: 1px solid var(--line); }
.endpointList code { width: fit-content; border: 0 !important; background: transparent !important; color: var(--teal) !important; font-size: 11px !important; font-weight: 700; }
.endpointList strong { font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px; overflow-wrap: anywhere; }
.endpointList span { color: var(--muted); font-size: 12px; }

.implementationTable td:first-child { width: 52px; color: var(--accent); font-family: "SFMono-Regular", Consolas, monospace; }
.orderedFlow { counter-reset: implementation-step; display: grid; gap: 0; margin: 22px 0 30px; padding: 0 !important; border-top: 1px solid var(--line); list-style: none; }
.orderedFlow li { position: relative; display: block; margin: 0; padding: 15px 0 15px 42px !important; border-bottom: 1px solid var(--line); }
.orderedFlow li::before { position: absolute; top: 18px; left: 0; counter-increment: implementation-step; content: counter(implementation-step, decimal-leading-zero); color: var(--accent); font: 600 11px/1.75 "SFMono-Regular", Consolas, monospace; }
.modelTable td:nth-child(2) { min-width: 210px; }
.factList { margin: 22px 0 28px; border-top: 1px solid var(--line); }
.factList div { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.factList span { color: var(--muted); font-size: 12px; }
.factList code { overflow-wrap: anywhere; }

.faqList { border-top: 1px solid var(--line); }
.faqList details { border-bottom: 1px solid var(--line); }
.faqList summary { padding: 20px 30px 20px 0; color: var(--ink); font-weight: 600; cursor: pointer; }
.faqList p { margin: -4px 0 22px; padding-right: 24px; color: var(--muted); font-size: 14px; }
.nextPage { display: grid; gap: 6px; margin-top: 54px; padding-top: 22px; border-top: 1px solid var(--line); }
.nextPage > span { color: var(--faint); font-size: 11px; }
.nextPage a { display: flex; align-items: center; justify-content: space-between; color: var(--accent); }

.toc { padding: 40px 0 24px 34px; }
html:not(.docs-js) .toc { display: none; }
.toc h2 { display: flex; align-items: center; gap: 7px; margin: 0 0 12px; font-size: 12px; }
.toc nav { display: grid; gap: 2px; border-left: 1px solid var(--line); }
.toc a { margin-left: -1px; padding: 6px 0 6px 14px; border-left: 1px solid transparent; color: var(--muted); font-size: 11px; line-height: 1.45; }
.toc a:hover, .toc a.isActive { border-color: var(--accent); color: var(--accent); }

.searchDialog { width: min(620px, calc(100vw - 28px)); margin-top: 12vh; padding: 0; border: 1px solid var(--line-strong); border-radius: 8px; background: #fff; box-shadow: 0 24px 80px rgb(23 30 42 / 24%); }
.searchDialog::backdrop { background: rgb(22 27 34 / 30%); backdrop-filter: blur(2px); }
.searchPanel { margin: 0; }
.searchInputRow { display: grid; grid-template-columns: 24px 1fr auto; align-items: center; gap: 8px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.searchInputRow input { min-width: 0; border: 0; outline: 0; color: var(--ink); font-size: 15px; }
.searchInputRow button { padding: 4px 7px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: var(--faint); font-size: 10px; cursor: pointer; }
.searchResults { max-height: 430px; overflow: auto; padding: 8px; }
.searchResults a { display: grid; gap: 2px; padding: 11px 12px; border-radius: 6px; }
.searchResults a:hover, .searchResults a:focus { outline: none; background: var(--surface); }
.searchResults strong { font-size: 13px; }
.searchResults span { color: var(--muted); font-size: 11px; }
.searchEmpty { padding: 30px 16px; color: var(--muted); font-size: 13px; text-align: center; }
.toast { position: fixed; z-index: 60; right: 22px; bottom: 22px; padding: 9px 13px; transform: translateY(14px); border-radius: 6px; background: var(--ink); color: #fff; font-size: 12px; opacity: 0; pointer-events: none; transition: 160ms ease; }
.toast.isVisible { transform: none; opacity: 1; }

@media (max-width: 1120px) {
  .headerInner { grid-template-columns: 220px minmax(200px, 300px); }
  .docsShell { grid-template-columns: 220px minmax(0, 760px); }
  .toc { display: none; }
  .sidebar { padding-right: 24px; }
}

@media (max-width: 780px) {
  :root { --header-height: 58px; }
  .headerInner { grid-template-columns: 1fr auto auto; gap: 4px; padding: 0 12px 0 16px; }
  .brandMeta { display: none; }
  .searchTrigger { display: grid; grid-template-columns: 1fr; place-items: center; width: 36px; min-height: 36px; padding: 0; border: 0; }
  .searchTrigger span:nth-child(2), .searchTrigger kbd { display: none; }
  .menuToggle { display: grid; }
  .docsShell { display: block; padding: 0; }
  .sidebar { position: fixed; z-index: 25; top: var(--header-height); bottom: 0; left: 0; width: min(310px, 86vw); height: auto; padding: 28px 22px; transform: translateX(-104%); border-right: 1px solid var(--line); background: #fff; box-shadow: 20px 0 50px rgb(20 28 40 / 12%); transition: transform 180ms ease; }
  .sidebar.isOpen { transform: none; }
  .content { width: 100%; }
  .docArticle { padding: 48px 22px 90px; }
  .titleRow { display: block; }
  .copyPage { margin-top: 14px; }
  h1 { font-size: 32px; }
  h2 { margin-top: 42px; font-size: 21px; }
  .lead { font-size: 17px; }
  .pipeline { grid-template-columns: 1fr; gap: 8px; }
  .pipeline div { grid-template-columns: 30px 1fr; align-items: center; padding: 10px 0; }
  .pipeline small { grid-column: 2; }
  .pipeline b { display: none; }
  .requirements { grid-template-columns: 1fr; }
  .requirements div + div { border-top: 1px solid var(--line); border-left: 0; }
  .endpointList div { grid-template-columns: 50px 1fr; gap: 6px 12px; }
  .endpointList span { grid-column: 2; }
  .factList div { grid-template-columns: 1fr; gap: 3px; }
  table { display: block; overflow-x: auto; white-space: nowrap; }
  .productFigure { margin-right: -8px; margin-left: -8px; }
  .toast { right: 14px; bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}