body:has(.racing-board-guide) { background: #0d1217; }
body:has(.racing-board-guide) .page-space-scene { display: none; }
body:has(.racing-board-guide) .site-header { background: #0b1015; backdrop-filter: none; }
.racing-board-guide {
    --guide-bg: #0d1217; --guide-code: #101820; --guide-line: #2c3c48;
    --guide-text: #eff3f7; --guide-body: #bdc8d2; --guide-accent: #75cfff;
    color: var(--guide-text); background: var(--guide-bg);
}
.racing-board-guide .shell { width: min(1360px, calc(100% - 48px)); max-width: 1360px; margin-inline: auto; }
.racing-guide-layout { display: grid; grid-template-columns: 200px minmax(0, 1040px); justify-content: center; gap: 48px; align-items: start; padding: 40px 0 88px; }
.racing-guide-main { min-width: 0; }
.racing-guide-sidebar { position: sticky; top: 100px; max-height: calc(100vh - 124px); overflow-y: auto; padding-right: 8px; font-size: 13px; line-height: 1.4; }
.racing-guide-sidebar a { color: var(--guide-body); text-decoration: none; }
.racing-guide-back { display: flex; align-items: center; min-height: 44px; margin-bottom: 16px; }
.racing-guide-sidebar nav { display: grid; }
.racing-guide-sidebar nav > strong { padding-left: 12px; margin-bottom: 12px; font-size: 14px; font-weight: 650; }
.racing-guide-sidebar nav a { display: flex; align-items: center; min-height: 44px; padding: 8px 8px 8px 12px; border-left: 2px solid transparent; }
.racing-guide-sidebar nav a:hover, .racing-guide-sidebar nav a:focus-visible { color: var(--guide-text); border-left-color: var(--guide-accent); background: #15212a; }
.racing-guide-download { display: flex; align-items: center; justify-content: center; min-height: 44px; margin-top: 24px; padding: 10px 12px; border: 1px solid #688293; border-radius: 4px; font-size: 13px; text-align: center; }
.racing-guide-sidebar .racing-guide-download { color: var(--guide-accent); }
.racing-guide-download:hover { background: #172936; }
.racing-guide-header { margin-bottom: 16px; padding-bottom: 24px; border-bottom: 1px solid var(--guide-line); }
.feed-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 20px; color: var(--guide-body); font-size: 13px; }
.feed-breadcrumb a { color: var(--guide-accent); text-decoration: none; min-height: 28px; display: inline-flex; align-items: center; }
.racing-guide-header h1 { margin: 0; font-family: var(--font-heading); font-size: 36px; line-height: 1.3; font-weight: 650; letter-spacing: -1px; }
.racing-guide-header h1 { text-wrap: balance; }
.racing-guide-intro { margin: 16px 0; color: var(--guide-body); font-size: 16px; line-height: 1.7; }
.racing-guide-meta { display: flex; flex-wrap: wrap; gap: 6px 20px; color: var(--guide-body); font-size: 12px; line-height: 1.6; }
.racing-guide-key-top { margin-top: 24px; }
.racing-guide-key-bottom { margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--guide-line); }
.racing-board-guide .racing-guide-main a.racing-guide-key-link { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; max-width: 100%; padding: 12px 20px; border: 1px solid var(--guide-accent); border-radius: 4px; background: var(--guide-accent); color: #102332; font-size: 14px; line-height: 1.5; font-weight: 650; text-decoration: none; }
.racing-board-guide .racing-guide-main a.racing-guide-key-link:hover { background: #c6edff; color: #102332; }
.racing-guide-mobile-toc { display: none; }
.racing-board-guide .feed-prose { min-width: 0; font-size: 16px; line-height: 1.75; }
.racing-board-guide .feed-prose > section { padding-top: 32px; scroll-margin-top: 100px; }
.racing-board-guide .feed-prose > section + section { margin-top: 28px; border-top: 1px solid var(--guide-line); }
.racing-board-guide .feed-prose > section:first-child { padding-top: 16px; }
.racing-board-guide .feed-prose h2 { margin: 0 0 16px; color: var(--guide-text); font-family: var(--font-heading); font-size: 24px; line-height: 1.4; font-weight: 650; letter-spacing: -.45px; }
.racing-board-guide .feed-prose h3 { margin: 28px 0 12px; color: var(--guide-text); font-size: 18px; line-height: 1.5; }
.racing-board-guide .feed-prose p { color: var(--guide-body); margin: 0 0 16px; overflow-wrap: anywhere; }
.racing-board-guide .feed-prose ul, .racing-board-guide .feed-prose ol { color: var(--guide-body); margin: 16px 0 20px; padding-left: 24px; }
.racing-board-guide .feed-prose li + li { margin-top: 10px; }
.racing-board-guide .feed-prose li { padding-left: 4px; overflow-wrap: anywhere; }
.racing-board-guide .feed-prose strong { color: var(--guide-text); font-weight: 600; }
.racing-board-guide .feed-prose a { color: var(--guide-accent); text-decoration: underline; text-underline-offset: 3px; }
.racing-board-guide .feed-prose a:hover { color: #c6edff; }
.racing-board-guide .feed-prose p code, .racing-board-guide .feed-prose li code { background: #172936; color: #a9ddfa; padding: 2px 5px; border-radius: 3px; font-size: .86em; overflow-wrap: anywhere; white-space: normal; box-decoration-break: clone; }
.racing-guide-preview, .racing-guide-files { margin: 20px 0; border-top: 1px solid var(--guide-line); border-bottom: 1px solid var(--guide-line); }
.racing-board-guide summary { cursor: pointer; }
.racing-guide-preview > summary, .racing-guide-files > summary { min-height: 48px; padding: 12px 0; color: var(--guide-text); font-size: 14px; font-weight: 600; }
.racing-guide-preview > summary::marker, .racing-guide-files > summary::marker { color: var(--guide-accent); }
.racing-guide-files > p { padding-bottom: 8px; }
.racing-board-guide .racing-guide-result { border-left: 2px solid var(--guide-accent); padding-left: 14px; }
.racing-code-block { margin: 20px 0 24px; border: 1px solid #385061; border-radius: 5px; overflow: hidden; }
.racing-code-bar { min-height: 48px; display: flex; gap: 12px; align-items: center; justify-content: space-between; padding: 0 8px 0 16px; border-bottom: 1px solid var(--guide-line); background: #17232d; color: #c3d0da; font-size: 12px; line-height: 1.4; }
.racing-code-bar button { min-height: 44px; min-width: 54px; border: 0; border-radius: 3px; padding: 8px 12px; background: transparent; color: #bce8ff; font: inherit; cursor: pointer; }
.racing-code-bar button:hover { background: #233746; }
.racing-code-bar button:disabled { cursor: wait; }
.racing-board-guide .feed-code { max-width: 100%; margin: 0; padding: 20px; border: 0; border-radius: 0; box-shadow: none; overflow-x: auto; background: var(--guide-code); color: #dce7ef; font-size: 13px; line-height: 1.75; }
.racing-board-guide .feed-code, .racing-board-guide .feed-prose p code, .racing-board-guide .feed-prose li code { font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace; }
.racing-board-guide .feed-code code { display: block; width: max-content; min-width: 100%; padding: 0; background: transparent; color: inherit; font: inherit; white-space: pre; overflow-wrap: normal; }
.racing-board-guide .racing-agent-prompt code { width: auto; min-width: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.racing-agent-banner { margin: 24px 0; border: 1px solid #688293; border-radius: 5px; background: #17232d; }
.racing-agent-banner-action { display: flex; flex-wrap: wrap; gap: 16px 24px; justify-content: space-between; align-items: center; padding: 20px; }
.racing-board-guide .racing-agent-banner-action p { flex: 1 1 260px; margin: 0; font-size: 14px; line-height: 1.6; }
.racing-agent-banner-action strong, .racing-agent-banner-action span { display: block; }
.racing-agent-banner-action button { min-height: 48px; max-width: 100%; padding: 12px 16px; border: 1px solid var(--guide-accent); border-radius: 4px; background: var(--guide-accent); color: #102332; font: inherit; font-size: 14px; line-height: 1.5; font-weight: 650; cursor: pointer; }
.racing-agent-banner-action button:hover { background: #c6edff; }
.racing-agent-banner-action button:disabled { cursor: wait; }
.racing-agent-banner-prompt { border-top: 1px solid var(--guide-line); }
.racing-agent-banner-prompt summary { min-height: 44px; padding: 12px 20px; color: var(--guide-accent); font-size: 13px; }
.racing-guide-faq { padding: 0; border-bottom: 1px solid var(--guide-line); }
.racing-guide-faq summary { min-height: 48px; padding: 12px 0; color: var(--guide-text); font-size: 15px; }
.racing-guide-faq > p { padding-top: 8px; }
.racing-board-guide :focus-visible { outline: 2px solid var(--guide-accent); outline-offset: 3px; }
.feed-skip-link { position: fixed; left: 16px; top: -100px; z-index: 1000; padding: 12px 16px; background: var(--guide-accent); color: #102332; font-weight: 600; }
.feed-skip-link:focus { top: 8px; }
.racing-guide-copy-status { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
@media (max-width: 980px) {
    .racing-board-guide .shell { width: min(1040px, calc(100% - 40px)); }
    .racing-guide-layout { display: block; padding-top: 32px; }
    .racing-guide-sidebar { display: none; }
    .racing-guide-mobile-toc { display: block; margin: 0 0 20px; border-bottom: 1px solid var(--guide-line); }
    .racing-guide-mobile-toc > summary { min-height: 48px; padding: 12px 0; font-size: 14px; font-weight: 600; }
    .racing-guide-mobile-toc nav { display: grid; padding-bottom: 12px; }
    .racing-guide-mobile-toc nav a { display: flex; align-items: center; min-height: 44px; padding: 8px 12px; color: var(--guide-body); font-size: 14px; text-decoration: none; }
    .racing-guide-mobile-toc nav a:hover { color: var(--guide-text); background: #15212a; }
}
@media (max-width: 600px) {
    .racing-board-guide .shell { width: calc(100% - 32px); }
    .racing-guide-layout { padding-top: 24px; padding-bottom: 48px; }
    .feed-breadcrumb { margin-bottom: 16px; font-size: 12px; }
    .racing-guide-header h1 { font-size: 28px; line-height: 1.3; letter-spacing: -.6px; }
    .racing-guide-intro { font-size: 15px; }
    .racing-guide-meta { gap: 4px 16px; }
    .racing-board-guide .feed-prose h2 { font-size: 22px; }
    .racing-board-guide .feed-code { padding: 16px; font-size: 12px; }
    .racing-code-bar { padding-left: 12px; font-size: 11px; }
}

.racing-board-preview {
    --preview-bg: #111b23;
    --preview-line: #35434d;
    --preview-text: #f1f3f5;
    --preview-muted: #adbac4;
    --preview-blue: #89d6ff;
    margin: 32px 0;
    color: var(--preview-text);
    background: var(--preview-bg);
    border: 1px solid var(--preview-line);
    border-radius: 6px;
    overflow: hidden;
}
.racing-preview-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 24px; }
.racing-preview-race { display: flex; align-items: center; gap: 12px; }
.racing-preview-number { display: grid; place-items: center; width: 44px; height: 48px; background: #253746; color: var(--preview-blue); border-radius: 4px; font-size: 19px; font-weight: 700; }
.racing-preview-race strong { display: block; font-size: 22px; line-height: 1.3; }
.racing-preview-race div > span { display: block; color: var(--preview-muted); font-size: 14px; margin-top: 4px; }
.racing-preview-demo { color: var(--preview-muted); font-size: 13px; }
.racing-preview-scroll { overflow-x: auto; width: 100%; }
.racing-preview-scroll:focus-visible { outline: 2px solid var(--preview-blue); outline-offset: -2px; }
.racing-preview-table { width: 100%; min-width: 570px; border-collapse: collapse; table-layout: fixed; font-size: 15px; line-height: 1.4; }
.racing-preview-table thead { background: #182630; }
.racing-preview-table thead th { padding: 14px 8px 6px; text-align: center; color: var(--preview-text); font-weight: 600; font-size: 14px; }
.racing-preview-table thead th:first-child[rowspan] { width: 40%; text-align: left; padding-left: 24px; color: var(--preview-muted); }
.racing-preview-table thead tr + tr th { padding: 2px 8px 12px; color: var(--preview-muted); font-size: 12px; font-weight: 500; }
.racing-preview-table tbody th, .racing-preview-table tbody td { padding: 16px 8px; border-top: 1px solid var(--preview-line); vertical-align: middle; }
.racing-preview-table tbody th { padding-left: 24px; text-align: left; font-weight: 400; }
.racing-preview-runner { display: flex; align-items: center; gap: 12px; }
.racing-preview-saddle { width: 28px; height: 32px; display: grid; place-items: center; flex-shrink: 0; color: var(--preview-muted); background: #23313b; border-radius: 3px; font-size: 13px; font-weight: 600; }
.racing-preview-runner strong { display: block; font-size: 15px; font-weight: 600; }
.racing-preview-runner small { display: block; font-size: 12px; margin-top: 5px; color: var(--preview-muted); }
.racing-preview-price, .racing-preview-empty { display: block; text-align: center; padding: 10px 4px; border-radius: 4px; font-variant-numeric: tabular-nums; font-size: 21px; font-weight: 600; }
.racing-preview-price { color: var(--preview-blue); background: #193343; }
.racing-preview-empty { color: var(--preview-muted); background: #19252e; font-weight: 400; }
.racing-preview-scratched strong { text-decoration: line-through; color: var(--preview-muted); }
.racing-preview-state { color: var(--preview-muted); font-size: 14px; text-align: left; }
.racing-board-preview figcaption { margin: 0; padding: 16px 24px; color: var(--preview-muted); border-top: 1px solid var(--preview-line); font-size: 13px; line-height: 1.6; }
.racing-preview-caption { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 600px) {
    .racing-preview-header { padding: 16px; gap: 8px; }
    .racing-preview-race { gap: 10px; }
    .racing-preview-race strong { font-size: 18px; }
    .racing-preview-race div > span { font-size: 12px; }
    .racing-preview-number { width: 34px; height: 42px; font-size: 16px; }
    .racing-preview-demo { font-size: 11px; max-width: 55px; }
    .racing-preview-table { min-width: 500px; }
    .racing-preview-table thead th:first-child[rowspan] { width: 160px; padding-left: 12px; }
    .racing-preview-table tbody th { padding-left: 12px; background: var(--preview-bg); }
    .racing-preview-table tbody th, .racing-preview-table thead th[rowspan] { position: sticky; left: 0; z-index: 1; }
    .racing-preview-table thead th[rowspan] { background: #182630; }
    .racing-preview-table thead th { font-size: 12px; }
    .racing-preview-table tbody td { padding: 16px 5px; }
    .racing-preview-runner { gap: 8px; }
    .racing-preview-runner strong { font-size: 13px; }
    .racing-preview-runner small { font-size: 11px; }
    .racing-preview-saddle { width: 22px; height: 30px; font-size: 12px; }
    .racing-preview-price, .racing-preview-empty { font-size: 18px; }
    .racing-preview-state { font-size: 12px; }
    .racing-board-preview figcaption { padding: 16px; font-size: 12px; }
}