.article-shell { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.article-header .brand { flex-shrink: 0; }
.article-nav { gap: 26px; }
.article-nav a[aria-current="page"] { color: var(--blue); }
.breadcrumbs { padding-top: 32px; color: var(--muted); font-size: 13px; }
.breadcrumbs ol { margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.breadcrumbs li:not(:last-child)::after { content: "›"; margin-left: 8px; color: #a2a8b7; }
.breadcrumbs a:hover { color: var(--blue); }
.article-hero { padding-block: 60px 72px; display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 70px; align-items: end; }
.article-hero h1 { max-width: 780px; margin: 20px 0 24px; font-size: clamp(44px, 6vw, 72px); line-height: 1.02; letter-spacing: -4px; }
.article-hero .lead { max-width: 760px; margin: 0; color: #4f5872; font-size: 20px; line-height: 1.65; }
.article-meta { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 13px; }
.article-summary { padding: 28px; border-radius: 24px; color: white; background: var(--blue); box-shadow: var(--shadow); }
.article-summary strong { display: block; margin-bottom: 14px; font: 800 18px "Manrope", sans-serif; }
.article-summary ul { margin: 0; padding-left: 20px; }
.article-summary li { margin: 10px 0; line-height: 1.5; }
.article-layout { padding-bottom: 110px; display: grid; grid-template-columns: minmax(0, 760px) 280px; gap: 72px; align-items: start; }
.article-content { min-width: 0; }
.article-content h2 { scroll-margin-top: 100px; margin: 58px 0 18px; font-size: clamp(30px, 4vw, 42px); line-height: 1.16; letter-spacing: -1.8px; }
.article-content h2:first-child { margin-top: 0; }
.article-content h3 { margin: 34px 0 12px; font-size: 23px; line-height: 1.25; letter-spacing: -.7px; }
.article-content p, .article-content li { color: #4f5872; font-size: 17px; line-height: 1.78; }
.article-content p { margin: 0 0 20px; }
.article-content strong { color: var(--ink); }
.article-content a:not(.button) { color: var(--blue-deep); text-decoration: underline; text-underline-offset: 3px; }
.article-content ul, .article-content ol { margin: 18px 0 26px; padding-left: 25px; }
.article-content li { margin: 9px 0; }
.info-box { margin: 30px 0; padding: 25px 28px; border-left: 4px solid var(--blue); border-radius: 0 18px 18px 0; background: #edf0ff; }
.info-box p:last-child { margin-bottom: 0; }
.comparison { width: 100%; margin: 28px 0; border-collapse: collapse; overflow: hidden; border-radius: 18px; background: white; box-shadow: 0 0 0 1px var(--line); }
.comparison th, .comparison td { padding: 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; line-height: 1.55; }
.comparison th { color: var(--ink); background: #edf0ff; font-size: 14px; }
.comparison td { color: #4f5872; font-size: 15px; }
.comparison tr:last-child td { border-bottom: 0; }
.article-aside { position: sticky; top: 100px; }
.toc, .aside-cta { padding: 24px; border-radius: 22px; background: white; box-shadow: 0 10px 35px rgba(17,21,43,.06); }
.toc strong, .aside-cta strong { display: block; margin-bottom: 13px; font: 800 15px "Manrope", sans-serif; }
.toc a { display: block; padding: 8px 0; color: var(--muted); font-size: 13px; line-height: 1.4; }
.toc a:hover { color: var(--blue); }
.aside-cta { margin-top: 16px; background: var(--yellow); }
.aside-cta p { color: #55512f; font-size: 14px; line-height: 1.55; }
.aside-cta .button { width: 100%; padding-inline: 14px; font-size: 13px; }
.article-faq { margin-top: 62px; }
.article-faq h2 { margin-bottom: 26px; }
.related { padding-block: 82px; background: white; }
.related .section-heading { margin-bottom: 35px; }
.related-grid, .hub-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card { min-height: 230px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 22px; background: var(--paper); }
.related-card > span { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }
.related-card h3 { margin: 18px 0 10px; font-size: 22px; line-height: 1.22; }
.related-card p { margin: 0 0 22px; color: var(--muted); line-height: 1.6; }
.related-card a { margin-top: auto; color: var(--blue); font-weight: 800; }
.hub-hero { padding-block: 76px 58px; }
.hub-hero h1 { max-width: 850px; margin-bottom: 22px; }
.hub-hero p { max-width: 760px; color: #4f5872; font-size: 20px; line-height: 1.65; }
.hub-grid { padding-bottom: 110px; }
.hub-card { min-height: 360px; padding: 32px; display: flex; flex-direction: column; border-radius: 26px; background: white; border: 1px solid rgba(17,21,43,.08); }
.hub-card:nth-child(2) { background: #edf0ff; }
.hub-card:nth-child(3) { background: var(--yellow); }
.hub-card .category { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }
.hub-card h2 { margin: 22px 0 14px; font-size: 30px; line-height: 1.15; letter-spacing: -1.3px; }
.hub-card p { color: var(--muted); line-height: 1.68; }
.hub-card:nth-child(3) p { color: #625d35; }
.hub-card .read-time { margin-top: auto; padding-top: 26px; color: var(--muted); font-size: 12px; }
.hub-card > a { margin-top: 14px; color: var(--blue); font-weight: 800; }

@media (max-width: 920px) {
  .article-hero { grid-template-columns: 1fr; gap: 30px; }
  .article-summary { max-width: 620px; }
  .article-layout { grid-template-columns: 1fr; gap: 40px; }
  .article-aside { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .aside-cta { margin-top: 0; }
}

@media (max-width: 720px) {
  .article-shell { width: min(100% - 32px, 1120px); }
  .article-hero { padding-block: 42px 54px; }
  .article-hero h1 { font-size: clamp(42px, 13vw, 60px); letter-spacing: -3px; }
  .article-hero .lead { font-size: 18px; }
  .article-layout { padding-bottom: 78px; }
  .article-content p, .article-content li { font-size: 16px; }
  .article-aside, .related-grid, .hub-grid { grid-template-columns: 1fr; }
  .comparison { display: block; overflow-x: auto; }
  .related { padding-block: 65px; }
  .hub-hero { padding-block: 52px 40px; }
  .hub-grid { padding-bottom: 78px; }
}