/* Internal pages share the accepted paint-world palette and site chrome. */
.inner-top-scene { padding-top: 16px; background: radial-gradient(ellipse at 82% 20%, #e1f7ff, transparent 72%), #fffdf8; }
.inner-main { padding-top: 28px; padding-bottom: 82px; }
.breadcrumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; font-size: 14px; line-height: 1.5; margin: 0 0 30px; color: #49687f; }
.breadcrumbs a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: underline; text-underline-offset: 4px; }
.inner-main h1 { font-size: clamp(36px, 4.6vw, 60px); line-height: 1.08; letter-spacing: -.04em; text-shadow: none; color: var(--ink); max-width: 950px; overflow-wrap: anywhere; }
.page-intro { position: relative; padding-bottom: 36px; }
.page-intro > p { margin-top: 18px; font-size: 19px; line-height: 1.6; max-width: 650px; color: #49687f; }
.page-intro .object-layer { width: 46px; right: 8%; top: 20px; }
.document-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 64px; align-items: start; }
.document-toc { position: sticky; top: 24px; background: #f0faff; padding: 22px 23px; border-radius: 28px 18px 32px 20px; max-height: calc(100dvh - 48px); overflow: auto; }
.document-toc h2 { font-size: 22px; line-height: 1.3; letter-spacing: -.02em; margin-bottom: 14px; }
.document-toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.document-toc a { display: block; font-size: 14px; line-height: 1.5; padding-block: 7px; text-decoration: underline; text-underline-offset: 4px; }
.document-body { min-width: 0; max-width: 840px; font-size: 17px; line-height: 1.8; overflow-wrap: anywhere; }
.document-body > p { margin: 0 0 19px; }
.document-body h2 { font-size: 27px; line-height: 1.25; letter-spacing: -.02em; margin: 38px 0 20px; scroll-margin-top: 26px; }
.document-body h2:first-child { margin-top: 0; }
.document-body a, .kp-article-body a { color: #0877a4; text-decoration: underline; text-underline-offset: 4px; }
.document-body strong { font-weight: 850; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 34px; align-items: start; }
.kp-article-card { display: block; min-width: 0; color: var(--ink); border-radius: 32px 20px 36px 22px; background: #f1faff; overflow: hidden; transition: transform 180ms var(--easing); }
.kp-article-card:nth-child(3n) { background: #fff5e9; border-radius: 20px 34px 22px 32px; }
.kp-article-card:nth-child(3n + 1) { background: #fff1f5; }
.kp-article-card:hover { transform: translateY(-3px); }
.kp-article-card:active { transform: translateY(1px); }
.kp-article-card img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; }
.article-card-copy { padding: 27px 30px 29px; }
.article-card-copy time, .article-date { display: block; color: #49687f; font-size: 14px; line-height: 1.5; }
.article-card-copy h2 { font-size: 30px; line-height: 1.15; letter-spacing: -.025em; margin-top: 12px; }
.article-card-copy p { font-size: 16px; line-height: 1.6; margin-top: 15px; color: #49687f; }
.article-card-read { display: inline-flex; align-items: center; gap: 9px; margin-top: 20px; min-height: 44px; font-weight: 850; font-size: 15px; }
.article-card-read svg { width: 19px; height: 19px; }
.article-grid > .kp-article-card:first-child { grid-column: 1 / -1; display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; }
.article-grid > .kp-article-card:first-child img { height: 100%; min-height: 340px; }
.article-grid > .kp-article-card:first-child .article-card-copy { padding: 40px; }
.article-grid > .kp-article-card:first-child h2 { font-size: clamp(31px, 3.4vw, 43px); }
.article-reading { max-width: 850px; margin-inline: auto; }
.article-reading h1 { margin: 12px 0 28px; }
.kp-article-cover { width: 100%; height: auto; border-radius: 36px 20px 44px 22px; margin-bottom: 32px; }
.kp-article-body { font-size: 19px; line-height: 1.8; overflow-wrap: anywhere; }
.kp-article-body p { margin: 0 0 20px; }
.kp-article-body img { max-width: 100%; height: auto; border-radius: 22px; }
.kp-article-body h2 { font-size: 30px; line-height: 1.2; margin: 30px 0 18px; }
.article-cta { padding: 30px 34px; margin-top: 40px; background: #eefaff; border-radius: 30px 18px 34px 20px; }
.article-cta h2 { font-size: 30px; line-height: 1.2; }
.article-cta p { font-size: 17px; line-height: 1.6; margin-top: 12px; max-width: 620px; }
.article-cta .hero-actions { margin-top: 22px; }
.copyright { display: block; font-size: 13px; color: #d4e9f6; margin-top: 30px; }
.inner-main .section.wrap { width: 100%; }
.inner-main .section { padding-block: 38px; }
@media (max-width: 950px) {
  .document-layout { grid-template-columns: 210px minmax(0, 1fr); gap: 30px; }
  .document-toc { padding: 20px; }
  .article-grid { gap: 24px; }
  .article-card-copy { padding: 24px; }
  .article-card-copy h2 { font-size: 27px; }
  .article-grid > .kp-article-card:first-child .article-card-copy { padding: 28px; }
}
@media (max-width: 700px) {
  .inner-top-scene { padding-top: 12px; }
  .inner-main { padding-top: 16px; padding-bottom: 52px; }
  .breadcrumbs { margin-bottom: 22px; font-size: 14px; }
  .inner-main h1 { font-size: 37px; line-height: 1.1; }
  .page-intro { padding-bottom: 28px; }
  .page-intro:has(+ .document-layout) h1 { font-size: clamp(27px, 8vw, 37px); }
  .page-intro > p { font-size: 17px; margin-top: 16px; }
  .page-intro .object-layer { display: none; }
  .document-layout { grid-template-columns: 1fr; gap: 30px; }
  .document-toc { position: static; max-height: none; padding: 22px; }
  .document-toc h2 { font-size: 21px; }
  .document-toc a { font-size: 14px; padding-block: 6px; }
  .document-body { font-size: 16px; line-height: 1.8; }
  .document-body h2 { font-size: 24px; margin-top: 32px; }
  .article-grid { grid-template-columns: 1fr; gap: 27px; }
  .article-grid > .kp-article-card:first-child { grid-column: auto; display: block; }
  .article-grid > .kp-article-card:first-child img { height: auto; min-height: 0; }
  .article-grid > .kp-article-card:first-child .article-card-copy { padding: 24px; }
  .article-grid > .kp-article-card:first-child h2, .article-card-copy h2 { font-size: 27px; }
  .article-reading h1 { font-size: 36px; }
  .kp-article-cover { border-radius: 26px 16px 30px 18px; margin-bottom: 25px; }
  .kp-article-body { font-size: 17px; line-height: 1.75; }
  .article-cta { padding: 25px 22px; }
  .article-cta h2 { font-size: 27px; }
  .article-cta p { font-size: 16px; }
  .article-cta .hero-actions { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) { .kp-article-card { transition: none; } }