/* Isolated reading surfaces. Loaded only by seo/layout; the lead funnel is unchanged. */
.bf-seo { --seo-text: #2b2e34; --seo-soft: #565b66; --seo-brand: #b13c10; --seo-line: #e4e6e9; }
.bf-seo :where(a, button, summary, [tabindex]):focus-visible { outline: 2px solid #b13c10; outline-offset: 4px; }
.seo-main { padding-bottom: 0; }
.seo-container { width: min(100% - 64px, 1200px); margin-inline: auto; }
.seo-skip { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 12px 18px; background: #fff; border: 2px solid #b13c10; border-radius: 8px; transform: translateY(-180%); font-weight: 700; }
.seo-skip:focus { transform: translateY(0); }
.seo-breadcrumb { padding-block: 28px 0; font-size: 14px; line-height: 1.5; color: var(--seo-soft); }
.seo-breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px 12px; list-style: none; margin: 0; padding: 0; }
.seo-breadcrumb li { display: inline-flex; gap: 12px; align-items: center; min-width: 0; }
.seo-breadcrumb li:last-child { flex: 0 1 auto; }
.seo-breadcrumb a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: #b9bdc4; }
.seo-breadcrumb a:hover { color: var(--seo-brand); text-decoration-color: currentColor; }
.seo-breadcrumb svg { width: 14px; height: 14px; flex: 0 0 14px; }
.seo-breadcrumb span { overflow-wrap: anywhere; }
.seo-page-header { max-width: 850px; padding-block: 48px 48px; }
.seo-kicker { display: inline-block; color: var(--seo-brand); font-size: 15px; font-weight: 650; line-height: 1.5; margin: 0 0 16px; }
a.seo-kicker:hover { text-decoration: underline; text-underline-offset: 4px; }
.seo-main h1 { font-size: clamp(2.1rem, 3.5vw, 3.25rem); line-height: 1.12; letter-spacing: -.025em; font-weight: 780; color: var(--seo-text); text-wrap: balance; margin: 0; overflow-wrap: break-word; }
.seo-intro { color: var(--seo-soft); font-size: 21px; line-height: 1.6; max-width: 70ch; margin: 24px 0 0; }
.seo-page-meta { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 14px; color: var(--seo-soft); margin-top: 24px; }
.seo-button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 50px; padding: 14px 21px; border-radius: 12px; background: #cf4409; color: #fff; font-size: 16px; font-weight: 700; line-height: 1.35; text-align: center; text-decoration: none; transition: background-color .18s ease; }
.seo-button:hover { background: #b13c10; }
.seo-button svg { width: 20px; height: 20px; flex: 0 0 20px; }
.seo-page-header > .seo-button { margin-top: 28px; }
.seo-reading-layout { display: grid; grid-template-columns: minmax(0, 780px) minmax(210px, 1fr); gap: 72px; align-items: start; }
.seo-article { min-width: 0; color: var(--seo-soft); font-size: 18px; line-height: 1.75; overflow-wrap: break-word; }
.seo-main h2 { color: var(--seo-text); font-weight: 750; font-size: 29px; line-height: 1.25; letter-spacing: -.015em; text-wrap: balance; }
.seo-essentials { padding: 28px 30px; background: #f1faf4; border: 1px solid #d8eade; border-radius: 16px; color: #345a42; }
.seo-essentials h2 { font-size: 21px; line-height: 1.35; color: #254a33; margin: 0 0 16px; }
.seo-essentials ul { list-style: none; padding: 0; margin: 0; }
.seo-essentials li { display: flex; align-items: flex-start; gap: 12px; font-size: 17px; line-height: 1.6; }
.seo-essentials li + li { margin-top: 12px; }
.seo-essentials svg { width: 20px; height: 20px; flex: 0 0 20px; margin-top: 4px; color: #237544; }
.seo-prose-section, .seo-faq, .seo-related, .seo-index-group { scroll-margin-top: 105px; }
.seo-prose-section { margin-top: 48px; }
.seo-prose-section h2 { margin: 0 0 18px; }
.seo-prose-section p { margin: 0; }
.seo-prose-section p + p { margin-top: 18px; }
.seo-prose-section ul { list-style: disc; padding-left: 24px; margin: 20px 0 0; }
.seo-prose-section li { padding-left: 4px; margin-top: 10px; }
.seo-prose-section li::marker { color: #b13c10; }
.seo-table-wrap { max-width: 100%; overflow-x: auto; margin-top: 24px; border: 1px solid var(--seo-line); border-radius: 12px; }
.seo-table-wrap table { width: 100%; border-collapse: collapse; text-align: left; font-size: 16px; line-height: 1.55; min-width: 460px; }
.seo-table-wrap th, .seo-table-wrap td { padding: 16px 18px; vertical-align: top; }
.seo-table-wrap th { color: var(--seo-text); background: #f6f7f8; font-weight: 700; }
.seo-table-wrap td { border-top: 1px solid var(--seo-line); }
.seo-table-wrap td:first-child { font-weight: 600; color: var(--seo-text); }
.seo-sidebar { align-self: stretch; }
.seo-sidebar-inner { position: sticky; top: 105px; }
.seo-desktop-toc { padding-top: 2px; }
.seo-desktop-toc h2 { font-size: 16px; line-height: 1.5; margin: 0 0 14px; letter-spacing: 0; }
.seo-desktop-toc ol, .seo-mobile-toc ol { list-style: none; margin: 0; padding: 0; }
.seo-desktop-toc li + li { margin-top: 3px; }
.seo-desktop-toc a { display: block; padding: 8px 0; font-size: 15px; line-height: 1.45; color: var(--seo-soft); }
.seo-desktop-toc a:hover, .seo-back-link:hover { color: var(--seo-brand); text-decoration: underline; text-underline-offset: 4px; }
.seo-back-link { display: inline-flex; align-items: center; gap: 8px; border-top: 1px solid var(--seo-line); margin-top: 22px; padding-top: 20px; color: var(--seo-brand); font-size: 15px; font-weight: 600; }
.seo-back-link svg { width: 18px; height: 18px; flex-shrink: 0; }
.seo-mobile-toc { display: none; }
.seo-faq { margin-top: 52px; }
.seo-faq h2 { margin: 0 0 20px; }
.seo-faq details { border-bottom: 1px solid var(--seo-line); }
.seo-faq details:first-of-type { border-top: 1px solid var(--seo-line); }
.seo-faq summary, .seo-mobile-toc summary { display: flex; gap: 20px; justify-content: space-between; align-items: center; list-style: none; cursor: pointer; color: var(--seo-text); font-weight: 650; font-size: 18px; line-height: 1.5; padding: 20px 0; }
.seo-faq summary::-webkit-details-marker, .seo-mobile-toc summary::-webkit-details-marker { display: none; }
.seo-faq summary::marker, .seo-mobile-toc summary::marker { content: ''; }
.seo-faq summary svg, .seo-mobile-toc summary svg { width: 20px; height: 20px; flex: 0 0 20px; color: var(--seo-brand); transition: transform .18s ease; }
.seo-faq details[open] > summary svg, .seo-mobile-toc[open] > summary svg { transform: rotate(180deg); }
.seo-faq details p { margin: 0; padding: 0 40px 24px 0; }
.seo-cta { background: #fff4ee; padding: 32px; border-radius: 16px; margin-top: 48px; }
.seo-cta h2 { font-size: 26px; margin: 0; }
.seo-cta p { color: #754835; margin: 14px 0 22px; font-size: 18px; line-height: 1.65; }
.seo-sources { margin-top: 36px; border-top: 1px solid var(--seo-line); padding-top: 24px; }
.seo-sources h2 { font-size: 17px; margin: 0 0 12px; letter-spacing: 0; }
.seo-sources ul { list-style: none; padding: 0; margin: 0; font-size: 15px; line-height: 1.6; }
.seo-sources li + li { margin-top: 10px; }
.seo-sources a { color: var(--seo-soft); text-decoration: underline; text-underline-offset: 4px; }
.seo-sources a:hover { color: var(--seo-brand); }
.seo-related { margin-top: 72px; padding-top: 36px; border-top: 1px solid var(--seo-line); }
.seo-related-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 16px 24px; margin-bottom: 26px; }
.seo-related-heading h2 { margin: 0; font-size: 26px; }
.seo-related-heading > a { font-size: 15px; font-weight: 650; color: var(--seo-brand); text-decoration: underline; text-underline-offset: 4px; }
.seo-related-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; padding: 0; margin: 0; list-style: none; }
.seo-related-list a { display: flex; flex-direction: column; align-items: start; height: 100%; padding-block: 8px; }
.seo-related-category { color: var(--seo-soft); font-size: 14px; line-height: 1.5; }
.seo-related-list h3 { color: var(--seo-text); font-size: 21px; line-height: 1.35; font-weight: 700; margin: 10px 0 20px; text-wrap: balance; }
.seo-read-link { margin-top: auto; display: inline-flex; align-items: center; gap: 8px; color: var(--seo-brand); font-size: 15px; font-weight: 650; }
.seo-read-link svg { width: 18px; height: 18px; }
.seo-related-list a:hover h3 { color: var(--seo-brand); }
.seo-index-header { padding-block: 48px 38px; display: grid; grid-template-columns: minmax(0, 810px) 1fr; align-items: end; gap: 48px; }
.seo-index-action { padding-bottom: 4px; }
.seo-index-action .seo-button { text-align: left; }
.seo-index-action p { margin-top: 12px; color: var(--seo-soft); font-size: 14px; line-height: 1.5; }
.seo-category-nav { display: flex; flex-wrap: wrap; gap: 8px 28px; border-top: 1px solid var(--seo-line); border-bottom: 1px solid var(--seo-line); padding-block: 14px; }
.seo-category-nav a { display: inline-flex; align-items: center; min-height: 38px; font-size: 16px; font-weight: 650; color: var(--seo-soft); }
.seo-category-nav a:hover { color: var(--seo-brand); text-decoration: underline; text-underline-offset: 4px; }
.seo-index-group { display: grid; grid-template-columns: minmax(180px, 260px) minmax(0, 1fr); gap: 48px; padding-top: 52px; }
.seo-group-heading h2 { font-size: 26px; margin: 0; }
.seo-article-list { list-style: none; margin: 0; padding: 0; }
.seo-article-list li { border-bottom: 1px solid var(--seo-line); }
.seo-article-list li:first-child > a { padding-top: 0; }
.seo-article-list a { display: flex; justify-content: space-between; gap: 30px; padding-block: 26px; }
.seo-article-list h3 { font-size: 23px; line-height: 1.3; color: var(--seo-text); font-weight: 700; margin: 0; text-wrap: balance; }
.seo-article-list p { font-size: 17px; line-height: 1.6; color: var(--seo-soft); margin: 12px 0 0; }
.seo-article-list svg { width: 22px; height: 22px; flex: 0 0 22px; color: var(--seo-brand); margin-top: 4px; }
.seo-article-list a:hover h3 { color: var(--seo-brand); }
.seo-index-bottom { display: flex; gap: 40px; align-items: center; justify-content: space-between; margin-top: 64px; }
.seo-index-bottom p { margin-bottom: 0; }
.seo-index-bottom .seo-button { flex-shrink: 0; }
@media (max-width: 1000px) {
    .seo-reading-layout { grid-template-columns: minmax(0, 1fr) 230px; gap: 40px; }
    .seo-index-header { display: block; max-width: 820px; }
    .seo-index-action { margin-top: 28px; }
    .seo-index-group { grid-template-columns: 200px minmax(0, 1fr); gap: 36px; }
}
@media (max-width: 800px) {
    .seo-container { width: min(100% - 40px, 720px); }
    .seo-page-header, .seo-index-header { padding-block: 32px 34px; }
    .seo-intro { font-size: 19px; margin-top: 20px; }
    .seo-reading-layout { display: block; }
    .seo-sidebar { display: none; }
    .seo-mobile-toc { display: block; margin-top: 24px; border-block: 1px solid var(--seo-line); }
    .seo-mobile-toc summary { font-size: 17px; padding: 16px 0; }
    .seo-mobile-toc nav { padding: 0 0 16px; }
    .seo-mobile-toc a { display: block; padding: 9px 0; font-size: 16px; color: var(--seo-soft); line-height: 1.5; }
    .seo-related-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
    .seo-index-group { grid-template-columns: 1fr; gap: 22px; padding-top: 36px; }
    .seo-index-bottom { display: block; padding: 28px; }
    .seo-index-bottom .seo-button { margin-top: 24px; }
}
@media (max-width: 480px) {
    .seo-breadcrumb { padding-top: 20px; font-size: 13px; }
    .seo-breadcrumb ol { gap: 6px 8px; }
    .seo-breadcrumb li { gap: 8px; }
    .seo-kicker { font-size: 14px; margin-bottom: 12px; }
    .seo-main h1 { font-size: 33px; line-height: 1.14; }
    .seo-page-meta { gap: 6px 18px; }
    .seo-main h2 { font-size: 26px; }
    .seo-essentials { padding: 22px 20px; }
    .seo-essentials h2 { font-size: 20px; }
    .seo-essentials li { font-size: 17px; gap: 10px; }
    .seo-prose-section { margin-top: 36px; }
    .seo-faq { margin-top: 40px; }
    .seo-faq summary { font-size: 18px; gap: 14px; }
    .seo-faq details p { padding-right: 0; }
    .seo-cta { padding: 25px 22px; margin-top: 36px; }
    .seo-cta h2 { font-size: 24px; }
    .seo-button { gap: 10px; padding-inline: 16px; max-width: 100%; }
    .seo-related { margin-top: 48px; }
    .seo-related-heading h2 { font-size: 25px; }
    .seo-related-list { display: block; }
    .seo-related-list li + li { border-top: 1px solid var(--seo-line); margin-top: 18px; padding-top: 18px; }
    .seo-related-list h3 { margin-bottom: 14px; }
    .seo-category-nav { gap: 4px 22px; }
    .seo-article-list a { gap: 16px; }
    .seo-article-list h3 { font-size: 22px; }
    .seo-index-bottom { margin-top: 42px; }
}
@media (prefers-reduced-motion: reduce) {
    .bf-seo { scroll-behavior: auto; }
    .bf-seo *, .bf-seo *::before, .bf-seo *::after { scroll-behavior: auto !important; transition-duration: 0s !important; }
}