/* Source's established black/white editorial system, scoped to articles. */
.single-post .cc-main { max-width: none; width: 100%; padding: 0; margin: 0; }
.srs-article { background: #fff; color: var(--srs-ink); }
.srs-article-hero > .srs-shell { width: 100%; }
.srs-article-back { width: fit-content; text-decoration: none; }
.srs-article-back:hover { text-decoration: underline; }
.srs-article-hero .srs-article-deck { max-width: 790px; margin: 24px 0 0; color: #c5c9cf; font-size: 18px; font-weight: 400; line-height: 1.65; }
.srs-article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; margin-top: 24px; color: #c5c9cf; font-size: 12px; line-height: 1.5; }
.srs-article-meta > span + span { border-left: 1px solid #53565c; padding-left: 24px; }
.srs-article-layout { display: grid; grid-template-columns: 240px minmax(0, 780px); justify-content: space-between; align-items: start; gap: clamp(40px, 6vw, 100px); padding-block: 64px 80px; }
.srs-article-sidebar { position: sticky; top: calc(110px + var(--srs-admin-offset, 0px)); }
.srs-article-toc { padding-top: 20px; border-top: 2px solid var(--srs-ink); }
.srs-site .srs-article-toc h2 { font-family: var(--srs-font) !important; margin: 0 0 18px; font-size: 13px; font-weight: 700; line-height: 1.5; }
.srs-article-sidebar ol { margin: 0; padding: 0; list-style: none; }
.srs-article-sidebar li { margin: 0; border-bottom: 1px solid var(--srs-line); }
.srs-article-sidebar a { display: block; padding: 12px 0; color: var(--srs-muted); font-size: 13px; font-weight: 400; line-height: 1.55; text-decoration: none; }
.srs-article-sidebar a:hover { color: var(--srs-ink); text-decoration: underline; }
.srs-article-toc-mobile { display: none; }
.srs-article-reading { min-width: 0; }
.srs-article-image { margin: 0 0 44px; }
.srs-article-image img { display: block; width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }
.srs-article-prose { font-size: 18px; line-height: 1.8; overflow-wrap: anywhere; }
.srs-article-prose p { margin: 0 0 22px; color: #454a51; font-size: inherit; font-weight: 400; line-height: inherit; }
.srs-article-prose strong { color: var(--srs-ink); font-weight: 650; }
.srs-site .srs-article-prose h2 { margin: 48px 0 18px; padding-top: 30px; border-top: 1px solid var(--srs-line); color: var(--srs-ink); font-size: 34px; font-weight: 700; letter-spacing: .01em; line-height: 1.2; text-transform: none; scroll-margin-top: calc(110px + var(--srs-admin-offset, 0px)); }
.srs-site .srs-article-prose h2:first-child { margin-top: 0; padding-top: 0; border: 0; }
.srs-site .srs-article-prose h3 { margin: 30px 0 14px; font-size: 23px; line-height: 1.35; }
.srs-article-prose :is(ul, ol) { margin: 24px 0 30px; padding-left: 24px; color: #454a51; }
.srs-article-prose li { padding-left: 8px; margin: 0 0 16px; line-height: 1.75; }
.srs-article-prose li::marker { color: var(--srs-ink); }
.srs-article-prose a { color: var(--srs-ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.srs-article-prose a:hover { text-decoration-thickness: 2px; }
.srs-article-prose .srs-article-formula { margin-block: 28px; padding: 24px 28px; background: #f6f6f6; border-left: 3px solid var(--srs-ink); font-size: 19px; line-height: 1.6; }
.srs-article-prose .srs-article-note { margin-top: 40px; padding: 24px 28px; background: #f6f6f6; border-top: 1px solid var(--srs-line); color: var(--srs-muted); font-size: 14px; line-height: 1.7; }
.srs-article-note strong { display: block; margin-bottom: 6px; }
.srs-article-end { margin-top: 32px; }
.srs-article-more { padding: 60px 0 72px; background: #f6f6f6; border-top: 1px solid var(--srs-line); }
.srs-site .srs-article-more h2 { margin: 0 0 30px; font-size: 40px; line-height: 1.1; text-transform: uppercase; }
.srs-article-more-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px; }
.srs-article-guide { display: flex; flex-direction: column; padding: 26px 0 0; border-top: 1px solid var(--srs-ink); color: var(--srs-ink); text-decoration: none; }
.srs-site .srs-article-guide h3 { margin: 0 0 16px; max-width: 540px; font-family: var(--srs-display) !important; font-size: 30px; line-height: 1.15; font-weight: 700; }
.srs-article-guide p { margin: 0 0 22px; max-width: 570px; color: var(--srs-muted); font-size: 15px; line-height: 1.65; }
.srs-article-guide > span { display: flex; gap: 16px; align-items: center; margin-top: auto; font-size: 13px; font-weight: 700; }
.srs-article-guide:hover h3 { text-decoration: underline; text-underline-offset: 4px; }
.srs-article a:focus-visible, .srs-article-more a:focus-visible, .srs-article summary:focus-visible { outline: 2px solid currentColor; outline-offset: 5px; }
@media (max-width: 1050px) { .srs-article-layout { grid-template-columns: 200px minmax(0, 1fr); gap: 40px; } }
@media (max-width: 900px) {
    .srs-article-layout { display: block; padding-block: 32px 56px; }
    .srs-article-sidebar { position: static; margin-bottom: 28px; }
    .srs-article-toc { display: none; }
    .srs-article-toc-mobile { display: block; padding: 0; border-block: 1px solid var(--srs-line); }
    .srs-article-toc-mobile summary { padding: 16px 0; font-size: 14px; font-weight: 650; cursor: pointer; }
    .srs-article-toc-mobile nav { padding-bottom: 12px; }
    .srs-article-toc-mobile a { padding: 12px 4px; font-size: 14px; }
    .srs-article-prose { font-size: 17px; line-height: 1.8; }
    .srs-article-image { margin-bottom: 32px; }
    .srs-site .srs-article-prose h2 { font-size: 30px; margin-top: 36px; padding-top: 26px; }
}
@media (max-width: 520px) {
    .srs-article-hero .srs-article-deck { margin-top: 20px; font-size: 16px; line-height: 1.65; }
    .srs-article-meta { margin-top: 20px; gap: 10px 16px; font-size: 11px; }
    .srs-article-meta > span + span { padding-left: 16px; }
    .srs-site .srs-article-prose h2 { font-size: 28px; scroll-margin-top: 90px; }
    .srs-article-prose .srs-article-formula, .srs-article-prose .srs-article-note { padding: 20px; }
    .srs-article-prose .srs-article-formula { font-size: 17px; }
    .srs-article-more { padding: 40px 0 48px; }
    .srs-site .srs-article-more h2 { font-size: 32px; }
    .srs-article-more-grid { grid-template-columns: 1fr; gap: 30px; }
    .srs-site .srs-article-guide h3 { font-size: 27px; }
}