:root {
  color-scheme: light;
  --sidebar-width: 260px;
  --content-width: 900px;
  --column-gap: 32px;
  --layout-width: calc(2 * var(--sidebar-width) + var(--content-width) + 2 * var(--column-gap));
  --outline-width: 230px;
  --text: #30343b;
  --muted: #606974;
  --link: #246a98;
  --border: #cbd1d7;
  --sidebar-bg: #dfe3e7;
  --background: #e9ebee;
  --heading: #242a32;
  --input-border: #bfc7d0;
  --nav-text: #454d59;
  --hover: #d2d9e0;
  --active-text: #176a9b;
  --active-bg: #d3e1ed;
  --selected-bg: #dce5ed;
  --quote-border: #a5bfd2;
  --quote-bg: #e1e8ed;
  --quote-text: #485566;
  --code-bg: #dde2e7;
  --code-border: #ccd3da;
  --table-head: #dce1e6;
  --table-stripe: #e3e6e9;
  --button-bg: #2874a6;
  --button-text: #fff;
  --shadow: #20253016;
  --syntax-comment: #66705e;
  --syntax-keyword: #793e9c;
  --syntax-string: #27683c;
  --syntax-number: #92561d;
  --syntax-name: #226b99;
  --syntax-builtin: #8b521e;
  --syntax-error: #a12d3b;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --text: #d4d6db;
  --muted: #9ba1ac;
  --link: #80bce8;
  --border: #303238;
  --sidebar-bg: #151619;
  --background: #101113;
  --heading: #f0f1f4;
  --input-border: #3c3f46;
  --nav-text: #bec3cc;
  --hover: #25272c;
  --active-text: #9bd0f5;
  --active-bg: #203445;
  --selected-bg: #22313e;
  --quote-border: #466e8b;
  --quote-bg: #19232c;
  --quote-text: #c1cedb;
  --code-bg: #222429;
  --code-border: #34373d;
  --table-head: #24262b;
  --table-stripe: #181a1e;
  --button-bg: #367eae;
  --button-text: #fff;
  --shadow: #0008;
  --syntax-comment: #929e8c;
  --syntax-keyword: #c7a0e8;
  --syntax-string: #a8cf91;
  --syntax-number: #e5b47f;
  --syntax-name: #88c5ee;
  --syntax-builtin: #e5c28d;
  --syntax-error: #f08b96;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 28px; scrollbar-gutter: stable both-edges; }
body { margin: 0; overflow-x: clip; color: var(--text); background: var(--background); font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input { font: inherit; }
button, summary { cursor: pointer; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }
.skip-link { position: fixed; top: -80px; left: 16px; z-index: 100; background: var(--background); padding: 10px 18px; }
.skip-link:focus { top: 8px; }
.manual-sidebar { position: fixed; inset: 0 auto 0 max(0px, calc((100% - var(--layout-width)) / 2)); width: var(--sidebar-width); display: flex; flex-direction: column; background: var(--sidebar-bg); border-right: 1px solid var(--border); z-index: 40; }
.manual-brand { display: flex; align-items: center; gap: 12px; padding: 28px 24px 20px; color: var(--heading); font-size: 28px; font-weight: 650; letter-spacing: -.6px; line-height: 1.2; }
.manual-brand:hover { text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 9px; background: #e87927; color: var(--button-text); font-size: 26px; font-weight: 750; }
.brand-logo { width: 80px; height: 80px; object-fit: contain; flex-shrink: 0; }
.brand-subtitle { display: block; margin-top: 5px; font-size: 13px; font-weight: 400; color: var(--muted); letter-spacing: .2px; }
.sidebar-search { margin: 0 20px 14px; display: flex; align-items: center; gap: 8px; background: var(--background); border: 1px solid var(--input-border); border-radius: 5px; padding: 7px 10px; }
.sidebar-search > span { color: var(--muted); font-size: 23px; line-height: 1; }
.sidebar-search input { border: 0; outline: none; min-width: 0; width: 100%; font-size: 14px; background: transparent; color: var(--text); }
.sidebar-search:focus-within { outline: 2px solid var(--link); }
.chapter-nav { flex: 1; overflow-y: auto; padding: 0 12px 24px; scrollbar-width: thin; }
.navigation-pending .chapter-nav { visibility: hidden; }
.nav-group { margin: 12px 0; }
.nav-caption { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 12px; margin: 0; border-radius: 4px; list-style: none; color: var(--text); font-size: 16px; font-weight: 650; letter-spacing: .7px; text-transform: uppercase; }
.nav-caption::-webkit-details-marker { display: none; }
.nav-caption::after { content: "›"; flex-shrink: 0; font-size: 18px; line-height: 1; }
.nav-group[open] > .nav-caption::after { transform: rotate(90deg); }
.nav-caption:hover { background: var(--hover); }
.nav-group[data-active="true"] > .nav-caption { color: var(--active-text); }
.nav-subgroup { margin: 2px 0 8px 10px; }
.nav-subcaption { font-size: 15px; font-weight: 600; letter-spacing: 0; text-transform: none; }
.chapter-nav .nav-subgroup > ul { margin-left: 12px; padding-left: 5px; border-left: 1px solid var(--border); }
.chapter-nav .nav-subgroup a { font-size: 13px; }
.chapter-index { margin: 18px 0 28px; border: 1px solid var(--border); border-radius: 5px; }
.chapter-index-toggle { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; list-style: none; font-size: 14px; color: var(--text); background: var(--sidebar-bg); border-radius: 5px; }
.chapter-index-toggle::-webkit-details-marker { display: none; }
.chapter-index-toggle::after { content: "›"; font-size: 20px; line-height: 1; }
.chapter-index[open] > .chapter-index-toggle::after { transform: rotate(90deg); }
.manual-article .chapter-index > ol { margin: 16px 20px 20px; padding-left: 28px; }
.chapter-nav ul { list-style: none; margin: 0; padding: 0; }
.chapter-nav a { display: block; padding: 7px 12px; border-radius: 4px; color: var(--nav-text); font-size: 14px; line-height: 1.45; overflow-wrap: anywhere; }
.chapter-nav a:hover { background: var(--hover); text-decoration: none; }
.chapter-nav a.active { color: var(--active-text); background: var(--active-bg); font-weight: 600; }
.sidebar-bottom { padding: 14px 20px 18px; border-top: 1px solid var(--border); background: var(--sidebar-bg); flex-shrink: 0; }
.sidebar-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: 8px; }
.sidebar-controls .theme-toggle { min-height: 36px; margin: 0; padding: 7px 5px; gap: 5px; font-size: 12px; white-space: nowrap; }
.sidebar-controls .language-switch summary { min-height: 36px; padding: 7px 6px; gap: 6px; font-size: 12px; }
.sidebar-controls .language-options { left: auto; min-width: 150px; z-index: 1; }
.theme-toggle { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; margin-bottom: 14px; padding: 7px 10px; border: 1px solid var(--input-border); border-radius: 4px; color: var(--text); background: var(--background); font-size: 13px; }
.theme-toggle:hover { background: var(--hover); }
.theme-icon-sun { display: none; }
:root[data-theme="dark"] .theme-icon-moon { display: none; }
:root[data-theme="dark"] .theme-icon-sun { display: block; }
.theme-toggle-compact { width: 34px; height: 34px; padding: 7px; margin: 0; }
.theme-toggle-compact .theme-label { display: none; }
.language-caption { display: block; font-size: 11px; color: var(--muted); margin-bottom: 5px; text-transform: uppercase; letter-spacing: .7px; }
.language-static { display: flex; align-items: center; justify-content: space-between; padding: 6px 10px; border: 1px solid var(--input-border); border-radius: 4px; background: var(--background); font-size: 14px; }
.language-static small, .language-current { color: var(--muted); font-size: 12px; }
.language-switch { position: relative; }
.language-switch summary { display: flex; align-items: center; gap: 9px; list-style: none; border: 1px solid var(--input-border); border-radius: 4px; padding: 6px 10px; background: var(--background); font-size: 14px; }
.language-switch summary::-webkit-details-marker { display: none; }
.language-switch summary span:last-child { margin-left: auto; }
.language-options { position: absolute; bottom: calc(100% + 6px); left: 0; right: 0; padding: 5px; background: var(--background); border: 1px solid var(--border); border-radius: 5px; box-shadow: 0 5px 24px var(--shadow); }
.language-options a { display: block; color: var(--text); padding: 6px 9px; font-size: 14px; }
.language-options a:hover, .language-options a[aria-current] { background: var(--selected-bg); text-decoration: none; }
.manual-layout { width: 100%; max-width: var(--layout-width); margin-inline: auto; display: grid; grid-template-columns: var(--sidebar-width) minmax(900px, var(--content-width)) var(--sidebar-width); column-gap: var(--column-gap); }
.manual-main { grid-column: 2; grid-row: 1; min-width: 900px; width: 100%; padding-top: 30px; }
.page-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 20px; margin-bottom: 28px; }
.breadcrumbs { color: var(--muted); font-size: 12px; line-height: 1.5; min-width: 0; overflow-wrap: anywhere; }
.project-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 10px; }
.project-link { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 38px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; color: var(--text); background: var(--background); font-size: 13px; white-space: nowrap; }
.project-link:hover { background: var(--hover); color: var(--link); text-decoration: none; }
.project-link img { object-fit: contain; }
.project-link :is(svg, img) { flex-shrink: 0; }
.breadcrumbs > span:last-child { margin-left: 5px; }
.breadcrumbs a { color: var(--muted); }
.manual-article { overflow-wrap: break-word; min-height: 55vh; }
.manual-article h1, .manual-article h2, .manual-article h3, .manual-article h4 { color: var(--heading); font-weight: 550; line-height: 1.3; }
.manual-article h1 { font-size: 34px; margin: 0 0 28px; letter-spacing: -.6px; }
.manual-article h2 { font-size: 25px; margin: 42px 0 18px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.manual-article h3 { font-size: 20px; margin: 30px 0 12px; }
.manual-article h4 { font-size: 17px; margin: 24px 0 10px; }
.manual-article p, .manual-article ul, .manual-article ol { margin-top: 0; margin-bottom: 18px; }
.manual-article ul, .manual-article ol { padding-left: 25px; }
.manual-article li { margin-bottom: 6px; }
.manual-article strong { font-weight: 600; }
.manual-article img { max-width: 100%; height: auto; }
.manual-article video { display: block; width: 100%; max-width: 100%; aspect-ratio: 16 / 9; object-fit: contain; margin: 22px 0; border-radius: 4px; background: #111; }
.case-video { position: relative; margin: 24px 0; overflow: hidden; border-radius: 8px; background: #111; box-shadow: 0 2px 12px #0002; }
.manual-article .case-video video { margin: 0; border-radius: inherit; }
.case-video-start { position: absolute; inset: 0; width: 100%; height: 100%; padding: 0; border: 0; border-radius: inherit; background: transparent; cursor: pointer; }
.case-video-start[hidden] { display: none; }
.case-video-start:disabled { cursor: wait; }
.case-video-status { position: absolute; right: 16px; bottom: 16px; left: 16px; margin: 0; padding: 8px 12px; border-radius: 4px; background: #111d; color: #fff; font-size: 14px; text-align: center; pointer-events: none; }
.case-video-play-icon { position: absolute; top: 50%; left: 50%; display: grid; place-items: center; width: 136px; height: 136px; border: 2px solid #ffffff22; border-radius: 50%; background: rgba(20, 20, 20, 0.2); box-shadow: 0 4px 28px #0004; transform: translate(-50%, -50%); }
.case-video-play-icon::before { content: ""; width: 0; height: 0; margin-left: 10px; border-top: 22px solid transparent; border-bottom: 22px solid transparent; border-left: 36px solid #ddddddcc; }
.case-video-start:hover .case-video-play-icon, .case-video-start:focus-visible .case-video-play-icon { background: #11111188; border-color: #eee; }
.case-video-start:hover .case-video-play-icon::before, .case-video-start:focus-visible .case-video-play-icon::before { border-left-color: #eee; }
.case-video-start:focus-visible { outline: 3px solid var(--link); outline-offset: -5px; }
.zoomable-image { cursor: zoom-in; }
.image-preview-image { cursor: zoom-out; }
html.image-preview-open { overflow: hidden; }
.image-preview { position: fixed; inset: 0; width: 100vw; height: 100vh; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 32px 24px; border: 0; background: transparent; overflow: hidden; }
.image-preview[open] { display: grid; place-items: center; }
/* Extend past root scrollbar gutters so no uncovered strips remain at either edge. */
.image-preview::backdrop { position: fixed; inset: -100vmax; background: #000b; }
.image-preview-close { position: fixed; top: 12px; right: 16px; z-index: 1; margin: 0; }
.image-preview-close button { display: grid; place-items: center; width: 40px; height: 40px; padding: 0; border: 0; border-radius: 4px; background: #0006; color: #fff; font-size: 32px; line-height: 1; }
.image-preview-close button:hover { background: #000a; }
.image-preview-image { display: block; width: auto; height: auto; max-width: calc(100vw - 48px); max-height: calc(100vh - 64px); max-height: calc(100dvh - 64px); margin: auto; object-fit: contain; }
.manual-article div[align="center"] { margin: 22px 0; }
.manual-article [style*="display: flex"] { flex-wrap: wrap; margin: 20px 0; }
.manual-article [style*="display: flex"] > div { min-width: min(240px, 100%); }
.manual-article hr { border: 0; border-top: 1px solid var(--border); margin: 28px 0; }
.manual-article blockquote { margin: 22px 0; padding: 12px 18px; border-left: 3px solid var(--quote-border); background: var(--quote-bg); color: var(--quote-text); }
.manual-article blockquote p:last-child { margin-bottom: 0; }
.manual-article code { background: var(--code-bg); border: 1px solid var(--code-border); border-radius: 3px; padding: 1px 4px; font: .85em/1.5 Consolas, "SFMono-Regular", monospace; }
.manual-article pre { background: var(--sidebar-bg); border: 1px solid var(--border); border-radius: 5px; padding: 16px 18px; overflow-x: auto; line-height: 1.55; margin: 22px 0; }
.manual-article pre code { padding: 0; border: 0; background: none; }
.codehilite { color: var(--text); }
.codehilite :is(.c, .ch, .cm, .cp, .cpf, .c1, .cs) { color: var(--syntax-comment); font-style: italic; }
.codehilite :is(.k, .kc, .kd, .kn, .kp, .kr, .kt, .ow) { color: var(--syntax-keyword); }
.codehilite :is(.s, .sa, .sb, .sc, .dl, .sd, .s2, .se, .sh, .si, .sx, .sr, .s1, .ss) { color: var(--syntax-string); }
.codehilite :is(.m, .mb, .mf, .mh, .mi, .mo, .il) { color: var(--syntax-number); }
.codehilite :is(.nf, .fm, .nc, .nn, .nt, .na) { color: var(--syntax-name); }
.codehilite :is(.nb, .bp, .ne, .nv, .vc, .vg, .vi, .vm) { color: var(--syntax-builtin); }
.codehilite :is(.err, .gd) { color: var(--syntax-error); }
.codehilite .gi { color: var(--syntax-string); }
.codehilite .ge { font-style: italic; }
.codehilite .gs { font-weight: 650; }
.codehilite .hll { background: var(--active-bg); }
.table-scroll { overflow-x: auto; margin: 22px 0; }
.manual-article table { border-collapse: collapse; font-size: 14px; width: 100%; }
.manual-article th, .manual-article td { border: 1px solid var(--border); padding: 9px 12px; vertical-align: top; min-width: 85px; }
.manual-article th { background: var(--table-head); font-weight: 600; text-align: left; }
.manual-article tbody tr:nth-child(even) { background: var(--table-stripe); }
.headerlink { visibility: hidden; color: var(--muted); margin-left: 7px; font-size: .7em; }
:is(h1,h2,h3,h4):hover .headerlink, .headerlink:focus { visibility: visible; }
.page-outline { grid-column: 3; grid-row: 1; position: sticky; top: 34px; align-self: start; max-width: var(--outline-width); max-height: calc(100vh - 68px); overflow-y: auto; margin-top: 34px; padding: 0 12px 0 18px; border-left: 1px solid var(--border); scrollbar-width: thin; }
.page-outline p { margin: 0 0 10px; font-size: 13px; font-weight: 600; }
.outline-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.outline-close { display: none; }
.page-outline ul { list-style: none; padding: 0; margin: 0; }
.page-outline ul ul { padding-left: 12px; }
.page-outline a { display: block; padding: 4px 0; font-size: 12px; line-height: 1.5; color: var(--muted); }
.page-outline a.active { color: var(--link); font-weight: 600; }
.page-navigation { display: flex; justify-content: space-between; gap: 30px; border-top: 1px solid var(--border); margin-top: 48px; padding: 22px 0; }
.page-navigation a { max-width: 48%; }
.page-navigation span { display: block; color: var(--muted); font-size: 12px; }
.page-navigation strong { display: block; font-size: 14px; font-weight: 500; }
.next-page { text-align: right; margin-left: auto; }
.manual-footer { color: var(--muted); font-size: 12px; padding: 20px 0 34px; }
.content-search { display: flex; gap: 8px; margin: 20px 0 30px; }
.content-search input { flex: 1; min-width: 0; border: 1px solid var(--input-border); border-radius: 4px; padding: 9px 12px; background: var(--background); color: var(--text); }
.content-search button { background: var(--button-bg); border: none; border-radius: 4px; color: var(--button-text); padding: 9px 18px; }
.search-results article { border-bottom: 1px solid var(--border); padding-bottom: 12px; margin: 20px 0; }
.mobile-header, .sidebar-backdrop { display: none; }
@media (max-width: 1520px) {
  html { scroll-padding-top: 75px; }
  .manual-sidebar { left: 0; transform: translateX(-100%); transition: transform .18s ease; }
  body.sidebar-open .manual-sidebar { transform: none; }
  .mobile-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 18px; background: var(--background); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 30; }
  .mobile-header a { color: var(--text); font-weight: 600; }
  .mobile-header a span { font-weight: 400; color: var(--muted); }
  .mobile-header a[lang] { font-size: 13px; }
  .menu-toggle, .outline-toggle { display: grid; place-items: center; flex-shrink: 0; min-width: 28px; border: 0; background: transparent; font-size: 22px; padding: 0 3px; color: var(--text); }
  .manual-layout { display: block; max-width: calc(var(--content-width) + 48px); margin-inline: auto; padding: 0 24px; }
  .page-outline { display: block; position: fixed; inset: 0 0 0 auto; width: min(320px, calc(100vw - 48px)); max-width: none; max-height: none; margin: 0; padding: 24px; z-index: 40; background: var(--sidebar-bg); transform: translateX(100%); visibility: hidden; transition: transform .18s ease, visibility .18s; overscroll-behavior: contain; }
  body.outline-open .page-outline { transform: none; visibility: visible; }
  .page-outline .outline-heading { margin-bottom: 16px; }
  .page-outline .outline-heading p { margin: 0; font-size: 15px; }
  .outline-close { display: block; border: 0; background: transparent; color: var(--text); font-size: 26px; line-height: 1; padding: 4px; }
  .page-outline a { padding: 7px 0; font-size: 14px; }
  .manual-main { min-width: 0; padding-top: 22px; }
  .manual-article h1 { font-size: 28px; }
  .manual-article h2 { font-size: 23px; }
  .manual-article [style*="display: flex"] > div { min-width: 100%; }
  body.sidebar-open .sidebar-backdrop, body.outline-open .sidebar-backdrop { display: block; position: fixed; inset: 0; border: 0; background: #202a3a66; z-index: 35; }
  body.sidebar-open, body.outline-open { overflow: hidden; }
}
@media (min-width: 761px) and (max-width: 1520px) {
  .manual-main { padding-top: 30px; }
  .manual-article h1 { font-size: 34px; }
  .manual-article h2 { font-size: 25px; }
  .manual-article [style*="display: flex"] > div { min-width: min(240px, 100%); }
}
@media (prefers-reduced-motion: reduce) { .manual-sidebar, .page-outline { transition: none; } }