@layer base, layout, components, states;

@layer base {
  :root {
    --xf83-ink-paper: #f7f9f8;
    --xf83-ink-text: #222827;
    --xf83-ink-muted: #52635d;
    --xf83-ink-green: #176253;
    --xf83-ink-berry: #983c53;
    --xf83-ink-lemon: #e8eeab;
    --xf83-ink-line: #cdd7d1;
    --xf83-space-page: 20px;
    --xf83-type-body: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --xf83-type-display: 'Songti SC', 'STSong', 'SimSun', serif;
  }
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 24px; }
  body { margin: 0; color: var(--xf83-ink-text); background: var(--xf83-ink-paper); font: 16px/1.85 var(--xf83-type-body); letter-spacing: 0; }
  h1, h2, h3, p, figure, dl, dd { margin: 0; }
  h1, h2 { text-wrap: balance; }
  h1, h2, h3 { overflow-wrap: anywhere; }
  h1, h2 { font-family: var(--xf83-type-display); font-weight: 600; }
  h2 { font-size: 28px; line-height: 1.5; }
  h3 { font-size: 18px; line-height: 1.65; }
  a { color: var(--xf83-ink-green); text-underline-offset: 5px; text-decoration-thickness: 1px; overflow-wrap: anywhere; }
  button { font: inherit; cursor: pointer; }
  a, button, summary { -webkit-tap-highlight-color: transparent; }
  img { display: block; max-width: 100%; height: auto; }
  ul, ol { padding-left: 1.4em; }
  li + li { margin-top: 8px; }
  [hidden] { display: none !important; }
  :focus-visible { outline: 3px solid var(--xf83-ink-berry); outline-offset: 5px; }
  ::selection { background: var(--xf83-ink-lemon); color: var(--xf83-ink-text); }
}

@layer layout {
  .xf83-gong-mast, main, .xf83-gong-colophon { width: min(1160px, calc(100% - var(--xf83-space-page) * 2)); margin-inline: auto; }
  .xf83-gong-mast { display: flex; align-items: center; gap: 32px; min-height: 114px; }
  .xf83-gong-brand { display: flex; gap: 14px; align-items: center; color: inherit; text-decoration: none; flex-shrink: 0; }
  .xf83-gong-brand strong { display: block; font: 600 31px/1.1 var(--xf83-type-display); }
  .xf83-gong-brand small { font-size: 11px; display: block; margin-top: 8px; }
  .xf83-gong-brand small span { color: var(--xf83-ink-muted); }
  .xf83-gong-brand___seal { font: 30px var(--xf83-type-display); background: var(--xf83-ink-berry); color: white; width: 48px; height: 56px; display: grid; place-items: center; border-radius: 2px 2px 16px 2px; }
  .xf83-bian-disclosure { font-size: 11px; line-height: 1.7; color: var(--xf83-ink-muted); padding-left: 22px; border-left: 1px solid var(--xf83-ink-line); }
  .xf83-bian-disclosure span { display: block; }
  .xf83-gong-wayfinding { display: flex; gap: 28px; margin-left: auto; }
  .xf83-gong-cover { isolation: isolate; position: relative; min-height: 488px; display: flex; align-items: flex-end; padding: 34px 40px; color: white; overflow: hidden; }
  .xf83-gong-cover___photo { position: absolute; inset: 0; z-index: -2; }
  .xf83-gong-cover___photo > img { width: 100%; height: 100%; object-fit: cover; object-position: center 46%; }
  .xf83-gong-cover::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, rgb(9 22 17 / .95), rgb(9 22 17 / .73) 35%, transparent 75%); }
  .xf83-gong-cover___writing { max-width: 920px; padding-top: 140px; }
  .xf83-gong-cover___writing h1 { font-size: 39px; line-height: 1.35; }
  .xf83-gong-cover___writing h1 > span { display: block; font: 500 22px/1.5 var(--xf83-type-body); margin-top: 5px; }
  .xf83-gong-cover___stamp { position: absolute; inset: 24px 30px auto; display: flex; justify-content: space-between; font: 11px/1.6 var(--xf83-type-body); }
  .xf83-gong-cover___stamp span { padding: 4px 9px; background: rgb(14 32 25 / .8); }
  .xf83-gong-cover___eyebrow { font-size: 13px; color: #eef3bf; margin-bottom: 8px; }
  .xf83-gong-cover___deck { margin-top: 12px; font-size: 15px; }
  .xf83-gong-cover___notice { font-size: 11px; color: #e1e9e3; margin-top: 10px; }
  .xf83-gong-cover___photo figcaption { position: absolute; right: 30px; top: 62px; font-size: 10px; }
  .xf83-gong-cover___photo figcaption a { color: white; background: rgb(14 32 25 / .8); padding: 4px 7px; }
  .xf83-gong-facts { display: grid; grid-template-columns: repeat(3, 1fr); background: #edf2ee; padding: 20px 32px; border-bottom: 1px solid var(--xf83-ink-line); }
  .xf83-gong-facts > div { display: flex; align-items: center; gap: 16px; padding-left: 20px; border-left: 1px solid #b9c9bf; }
  .xf83-gong-facts > div:first-child { border: 0; padding-left: 0; }
  .xf83-gong-facts dt { color: var(--xf83-ink-muted); font-size: 12px; flex-shrink: 0; }
  .xf83-gong-facts dd { font-size: 13px; font-weight: 600; }
  .xf83-gong-reading { display: grid; grid-template-columns: 232px minmax(0, 820px); justify-content: space-between; gap: 64px; margin-top: 64px; }
  .xf83-gong-index { align-self: start; position: sticky; top: 30px; font-size: 13px; }
  .xf83-gong-index ol { padding: 0; list-style: none; margin: 18px 0; }
  .xf83-gong-index li + li { margin-top: 0; }
  .xf83-gong-index a { display: flex; align-items: baseline; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--xf83-ink-line); text-decoration: none; color: var(--xf83-ink-text); }
  .xf83-gong-index a span { font: 12px monospace; color: var(--xf83-ink-green); }
  .xf83-gong-index___note { margin-top: 32px; padding-left: 15px; border-left: 3px solid var(--xf83-ink-berry); font-family: var(--xf83-type-display); font-size: 19px; }
  .xf83-gong-manuscript { min-width: 0; }
  .xf83-gong-introduction { font-size: 18px; line-height: 2; padding-bottom: 28px; }
  .xf83-gong-chapter { padding: 36px 0; border-top: 1px solid var(--xf83-ink-line); scroll-margin-top: 24px; }
  .xf83-gong-chapter header { display: flex; align-items: baseline; gap: 20px; margin-bottom: 22px; }
  .xf83-gong-chapter___number { flex-shrink: 0; color: var(--xf83-ink-berry); font: 12px monospace; }
  .xf83-gong-chapter h3 { margin: 26px 0 10px; }
  .xf83-gong-chapter p + p, .xf83-bian-editorial p + p { margin-top: 16px; }
  .xf83-gong-colophon { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 34px 0; margin-top: 68px; border-top: 1px solid var(--xf83-ink-line); }
  .xf83-gong-colophon___brand { color: inherit; font: 600 25px var(--xf83-type-display); text-decoration: none; }
  .xf83-gong-colophon___brand span { display: block; font: 12px var(--xf83-type-body); margin-top: 5px; }
  .xf83-gong-colophon small { color: var(--xf83-ink-muted); font-size: 12px; }
  .xf83-gong-colophon nav { display: flex; align-items: center; gap: 20px; font-size: 12px; }
}

@layer components {
  .xf83-gong-skip { position: fixed; top: -80px; left: 20px; padding: 8px 16px; background: white; z-index: 10; }
  .xf83-gong-skip:focus { top: 10px; }
  .xf83-gong-symbol { flex-shrink: 0; vertical-align: middle; }
  .xf83-gong-wayfinding > a { display: block; position: relative; padding: 16px 0; color: var(--xf83-ink-text); text-decoration: none; font-size: 14px; white-space: nowrap; }
  .xf83-gong-wayfinding > a::after { content: ''; position: absolute; bottom: 7px; left: 0; height: 2px; width: 100%; background: var(--xf83-ink-green); transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
  .xf83-gong-wayfinding > a[aria-current]::after { transform: scaleX(1); }
  .xf83-gong-outbound { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
  .xf83-gong-command { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 18px; min-height: 50px; text-decoration: none; font-size: 14px; font-weight: 600; border: 1px solid transparent; border-radius: 3px; transition: transform .2s, background .2s, box-shadow .2s; }
  .xf83-gong-command--primary { background: var(--xf83-ink-lemon); color: #21392e; }
  .xf83-gong-command--secondary { background: #f7f9f8; color: #243d31; }
  .xf83-gong-command > img { width: 26px; height: 26px; }
  .xf83-gong-command .xf83-gong-symbol:last-child { width: 16px; transition: transform .2s ease; }
  .xf83-mian-paths { border-bottom: 1px solid var(--xf83-ink-line); }
  .xf83-mian-paths ol { display: grid; grid-template-columns: 1fr 1fr; list-style: none; padding: 0; margin: 0; }
  .xf83-mian-paths li { margin: 0; min-width: 0; }
  .xf83-mian-paths li + li { border-left: 1px solid var(--xf83-ink-line); }
  .xf83-mian-paths a { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 22px; padding: 28px; text-decoration: none; color: inherit; transition: background .2s; }
  .xf83-mian-paths span { font-size: 12px; color: var(--xf83-ink-berry); }
  .xf83-mian-paths strong { font-weight: 500; font-size: 16px; }
  .xf83-gong-breadcrumb { padding: 0 0 16px; font-size: 12px; color: var(--xf83-ink-muted); }
  .xf83-gong-breadcrumb ol { display: flex; align-items: center; gap: 8px; list-style: none; margin: 0; padding: 0; }
  .xf83-gong-breadcrumb li + li { margin-top: 0; }
  .xf83-gong-breadcrumb li + li::before { content: '/'; margin-right: 8px; color: #8aa598; }
  .xf83-gong-overline { font: 11px/1.6 var(--xf83-type-body); color: var(--xf83-ink-green); margin-bottom: 10px; }
  .xf83-gong-gallery { padding: 30px 0; margin: 0 0 30px; border-block: 1px solid var(--xf83-ink-line); background: repeating-linear-gradient(0deg, transparent 0 23px, rgb(23 98 83 / .035) 23px 24px); }
  .xf83-gong-gallery___heading { display: flex; align-items: center; gap: 18px; justify-content: space-between; margin-bottom: 22px; }
  .xf83-gong-gallery___heading h2 { font-size: 24px; }
  .xf83-gong-gallery___controls { display: flex; gap: 8px; }
  .xf83-gong-tool { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; border: 1px solid #8aa598; background: var(--xf83-ink-paper); color: var(--xf83-ink-green); transition: background .2s, transform .2s; }
  .xf83-gong-gallery___rail { display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: thin; scrollbar-color: #6a8c7b #e1e8e3; padding-bottom: 16px; }
  .xf83-gong-gallery___frame { flex: 0 0 65%; min-width: 0; scroll-snap-align: start; }
  .xf83-gong-gallery___frame > a { overflow: hidden; display: block; }
  .xf83-gong-gallery___frame img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; transition: transform .4s ease; }
  .xf83-gong-gallery___frame figcaption { display: flex; align-items: flex-start; gap: 14px; padding-top: 14px; }
  .xf83-gong-gallery___number { color: var(--xf83-ink-berry); font: 20px var(--xf83-type-display); }
  .xf83-gong-gallery___frame strong { display: block; font-size: 15px; font-weight: 600; }
  .xf83-gong-gallery___frame small { display: block; font-size: 11px; line-height: 1.8; color: var(--xf83-ink-muted); margin-top: 4px; }
  .xf83-bian-caption { font-size: 12px; line-height: 1.8; color: var(--xf83-ink-muted); margin-top: 14px; }
  .xf83-hui-comparison { width: 100%; overflow-x: auto; margin-block: 28px; border-block: 1px solid var(--xf83-ink-line); }
  .xf83-hui-comparison table { width: 100%; min-width: 580px; border-collapse: collapse; text-align: left; font-size: 14px; }
  .xf83-hui-comparison caption { text-align: left; padding: 14px 0; font-size: 13px; font-weight: 600; color: var(--xf83-ink-muted); }
  .xf83-hui-comparison th, .xf83-hui-comparison td { padding: 14px 12px; vertical-align: top; border-top: 1px solid var(--xf83-ink-line); }
  .xf83-hui-comparison thead { background: #e7eee8; }
  .xf83-hui-comparison tbody th { font-weight: 500; white-space: nowrap; color: var(--xf83-ink-green); }
  .xf83-hui-comparison tbody tr { transition: background .2s; }
  .xf83-ye-timeline { list-style: none; padding-left: 30px; margin-left: 8px; border-left: 1px solid #9eb6a8; counter-reset: step; }
  .xf83-ye-timeline > li { counter-increment: step; position: relative; margin-top: 30px; }
  .xf83-ye-timeline > li::before { content: counter(step); position: absolute; left: -44px; top: 0; width: 27px; height: 27px; display: grid; place-items: center; font: 13px monospace; border: 1px solid #9eb6a8; background: var(--xf83-ink-lemon); border-radius: 50%; }
  .xf83-bian-faq { margin-top: 26px; border-top: 3px solid var(--xf83-ink-green); padding-top: 30px; }
  .xf83-bian-faq header { margin-bottom: 22px; }
  .xf83-bian-faq___item { padding: 0 4px; border-bottom: 1px solid var(--xf83-ink-line); transition: background .2s; }
  .xf83-bian-faq___item summary { display: flex; gap: 18px; align-items: center; justify-content: space-between; padding: 20px 12px; cursor: pointer; list-style: none; }
  .xf83-bian-faq___item summary::-webkit-details-marker { display: none; }
  .xf83-bian-faq___item h3 { font-size: 16px; font-weight: 500; }
  .xf83-bian-faq___item summary .xf83-gong-symbol { color: var(--xf83-ink-green); transition: transform .2s; }
  .xf83-bian-faq___answer { padding: 0 44px 22px 12px; font-size: 15px; }
  .xf83-bian-evidence { padding: 30px 24px; margin-top: 44px; border-left: 3px solid var(--xf83-ink-berry); background: #eef1ee; }
  .xf83-bian-evidence h2 { font-size: 24px; margin-bottom: 16px; }
  .xf83-bian-evidence p, .xf83-bian-evidence li { font-size: 14px; }
  .xf83-bian-evidence ul { columns: 2; column-gap: 30px; padding-left: 18px; }
  .xf83-bian-evidence li { break-inside: avoid; padding-block: 3px; }
  .xf83-bian-editorial { padding-top: 42px; font-size: 14px; }
  .xf83-bian-editorial h3 { margin: 25px 0 10px; }
  .xf83-bian-credits { font-size: 13px; }
  .xf83-bian-credits span { display: block; font-size: 11px; color: var(--xf83-ink-muted); }
  .xf83-gong-article-end { margin-top: 40px; border-block: 1px solid var(--xf83-ink-line); padding: 24px 0; display: flex; justify-content: space-between; gap: 20px; font-size: 14px; }
  .xf83-gong-error { min-height: 65vh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 24px; }
  .xf83-gong-error h1 { font-size: 36px; }
}

@layer states {
  @keyframes xf83-motion-arrive { from { transform: translateY(10px); } to { transform: translateY(0); } }
  .xf83-gong-cover___writing { animation: xf83-motion-arrive .6s ease-out; }
  .xf83-bian-faq___item[open] { background: #eaf0e9; }
  .xf83-bian-faq___item[open] summary .xf83-gong-symbol { transform: rotate(45deg); }
  .xf83-gong-tool:disabled { opacity: .4; cursor: default; }
  @media (hover: hover) {
    .xf83-gong-wayfinding > a:hover::after { transform: scaleX(1); }
    .xf83-gong-command:hover { transform: translateY(-2px); box-shadow: 0 5px 16px rgb(0 0 0 / .12); }
    .xf83-gong-command:hover .xf83-gong-symbol:last-child { transform: translate(2px, -2px); }
    .xf83-mian-paths a:hover { background: #eaf0e6; }
    .xf83-gong-index a:hover { color: var(--xf83-ink-green); }
    .xf83-gong-gallery___frame > a:hover img { transform: scale(1.025); }
    .xf83-gong-tool:not(:disabled):hover { background: var(--xf83-ink-lemon); transform: translateY(-1px); }
    .xf83-hui-comparison tbody tr:hover { background: #eaf0e6; }
  }
  @media (max-width: 1000px) {
    .xf83-bian-disclosure { display: none; }
    .xf83-gong-reading { grid-template-columns: 185px minmax(0, 1fr); gap: 32px; }
    .xf83-gong-cover___writing h1 { font-size: 34px; }
    .xf83-gong-facts { padding-inline: 20px; }
    .xf83-gong-facts > div { gap: 8px; padding-left: 12px; }
    .xf83-mian-paths a { gap: 12px; padding: 22px 18px; }
    .xf83-mian-paths span { display: none; }
    .xf83-gong-colophon { flex-wrap: wrap; }
  }
  @media (max-width: 700px) {
    .xf83-gong-mast { flex-wrap: wrap; gap: 0; padding-top: 18px; padding-bottom: 10px; min-height: 0; }
    .xf83-gong-brand___seal { width: 38px; height: 44px; font-size: 25px; }
    .xf83-gong-brand { gap: 10px; }
    .xf83-gong-brand strong { font-size: 27px; }
    .xf83-gong-brand small { font-size: 10px; margin-top: 5px; }
    .xf83-gong-wayfinding { width: 100%; justify-content: space-between; margin-top: 10px; gap: 10px; }
    .xf83-gong-wayfinding > a { padding: 10px 5px; font-size: 13px; }
    .xf83-gong-wayfinding > a::after { bottom: 3px; }
    .xf83-gong-cover { min-height: 485px; padding: 24px 18px; }
    .xf83-gong-cover___photo > img { object-position: 53% center; }
    .xf83-gong-cover___writing { padding-top: 150px; width: 100%; }
    .xf83-gong-cover___writing h1 { font-size: 27px; line-height: 1.45; }
    .xf83-gong-cover___writing h1 > span { font-size: 17px; }
    .xf83-gong-cover___deck { font-size: 13px; margin-top: 10px; }
    .xf83-gong-cover___stamp { inset: 15px 15px auto; font-size: 9px; }
    .xf83-gong-cover___photo figcaption { right: 15px; top: 49px; font-size: 9px; }
    .xf83-gong-cover___eyebrow { font-size: 12px; }
    .xf83-gong-outbound { gap: 8px; margin-top: 18px; flex-wrap: nowrap; }
    .xf83-gong-command { padding: 10px 8px; font-size: 12px; gap: 6px; min-height: 46px; }
    .xf83-gong-outbound > a { flex: 1 1 0; white-space: nowrap; }
    .xf83-gong-command > img, .xf83-gong-command > .xf83-gong-symbol { width: 20px; height: 20px; }
    .xf83-gong-command .xf83-gong-symbol:last-child { display: none; }
    .xf83-gong-cover___notice { font-size: 10px; line-height: 1.7; }
    .xf83-gong-facts { padding: 15px 8px; }
    .xf83-gong-facts > div { display: block; padding-left: 10px; }
    .xf83-gong-facts dt { font-size: 10px; }
    .xf83-gong-facts dd { font-size: 11px; margin-top: 4px; }
    .xf83-mian-paths a { display: flex; justify-content: space-between; padding: 20px 10px; gap: 8px; }
    .xf83-mian-paths strong { font-size: 13px; }
    .xf83-mian-paths .xf83-gong-symbol { width: 16px; }
    .xf83-gong-reading { display: block; margin-top: 36px; }
    .xf83-gong-index { position: static; border-bottom: 1px solid var(--xf83-ink-line); margin-bottom: 30px; padding-bottom: 10px; }
    .xf83-gong-index ol { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-block: 12px; }
    .xf83-gong-index a { border: 0; padding: 4px 0; gap: 5px; font-size: 12px; }
    .xf83-gong-index___note { display: none; }
    .xf83-gong-introduction { font-size: 16px; }
    .xf83-gong-chapter { padding: 28px 0; }
    .xf83-gong-chapter header { gap: 12px; margin-bottom: 18px; }
    .xf83-gong-chapter h2, .xf83-bian-faq h2 { font-size: 24px; }
    .xf83-gong-chapter h3 { font-size: 17px; }
    .xf83-gong-gallery___heading { align-items: flex-end; gap: 10px; }
    .xf83-gong-gallery___heading h2 { font-size: 22px; }
    .xf83-gong-gallery___controls { gap: 5px; }
    .xf83-gong-tool { width: 36px; height: 36px; }
    .xf83-gong-gallery___frame { flex-basis: 88%; }
    .xf83-bian-evidence { padding: 24px 18px; }
    .xf83-bian-evidence ul { columns: 1; }
    .xf83-bian-faq___item summary { padding-inline: 6px; }
    .xf83-bian-faq___answer { padding-inline: 6px 26px; }
    .xf83-gong-article-end { flex-direction: column; }
    .xf83-gong-colophon { margin-top: 40px; padding-top: 26px; gap: 24px; align-items: flex-start; }
    .xf83-gong-colophon nav { width: 100%; justify-content: space-between; gap: 10px; }
    .xf83-gong-colophon small { font-size: 10px; }
    .xf83-gong-breadcrumb { padding-top: 6px; }
  }
  @media (max-width: 700px) and (max-height: 700px) {
    .xf83-gong-cover { min-height: 425px; }
    .xf83-gong-cover___writing { padding-top: 90px; }
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  }
}