.showcase-intro, .library-intro { padding-top: 72px; padding-bottom: 56px; }
.showcase-intro { text-align: center; }
.showcase-intro h1, .library-intro h1 { margin: 16px 0 24px; font-size: clamp(46px, 6.5vw, 84px); line-height: 1.04; letter-spacing: -.055em; }
.showcase-intro h1 em, .library-intro h1 em { color: #176b43; font-style: normal; }
.showcase-intro .lede { margin-inline: auto; max-width: 690px; }
.intro-art { display: block; width: min(570px, 100%); height: auto; margin: 8px auto 12px; }
.showcase-intro .model-compatibility ul { justify-content: center; }
.feature-index { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0 28px; margin: 44px 0 22px; text-align: left; border-top: 1px solid #d5d8ca; }
.feature-index a { padding: 18px 0; border-bottom: 1px solid #d5d8ca; font-size: 13px; font-weight: 650; text-decoration: none; color: #353c34; }
.feature-index a span { display: block; margin-bottom: 8px; color: #176b43; font-size: 11px; }
.feature-index a:hover { color: #176b43; text-decoration: underline; text-underline-offset: 4px; }
.screen-note { font-size: 12px; line-height: 1.7; color: #62685f; }
.feature-chapter { padding: 80px 0; border-top: 1px solid #dedfd5; scroll-margin-top: 90px; }
.feature-chapter:nth-of-type(even) { background: #f4f2e9; }
.chapter-heading { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .9fr); align-items: center; gap: 80px; max-width: 1050px; margin: 0 auto 38px; }
.chapter-heading h2, .feature-built h2 { margin: 0; font-size: clamp(32px, 3.5vw, 48px); line-height: 1.12; letter-spacing: -.045em; }
.chapter-heading p, .feature-built p { color: #62685f; font-size: 17px; line-height: 1.7; margin: 22px 0 0; }
.chapter-heading .chapter-detail { font-size: 14px; }
.chapter-art > img { display: block; width: 100%; height: auto; }
.chapter-art .model-compatibility { margin-top: 6px; }
.chapter-screen { margin: 0 auto; max-width: 1050px; }
.chapter-screen > a { display: block; padding: 18px; border: 1px solid #d5d8ca; border-radius: 9px; background: #fff; box-shadow: 0 14px 40px #29311d09; }
.chapter-screen img { display: block; width: 100%; height: auto; }
.chapter-screen figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 14px; color: #62685f; font-size: 12px; }
.chapter-screen a, .library-footnote a { color: #176b43; text-underline-offset: 3px; }
.feature-built { display: grid; grid-template-columns: 1fr 1.3fr; align-items: center; gap: 70px; padding-block: 90px; }
.feature-built img { display: block; width: 100%; height: auto; border: 1px solid #d5d8ca; border-radius: 8px; }
.feature-built .text-link { display: inline-block; margin-top: 24px; }
.library-intro { max-width: 1180px; }
.library-intro .screen-note { max-width: 730px; margin-top: 28px; }
.library-content { padding-bottom: 80px; }
.library-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.library-filters[hidden], .library-card[hidden] { display: none !important; }
.library-filters button { padding: 11px 15px; min-height: 44px; border: 1px solid #d5d8ca; border-radius: 5px; background: transparent; color: #353c34; font: inherit; font-size: 13px; cursor: pointer; }
.library-filters button[aria-pressed="true"] { background: #174b35; border-color: #174b35; color: white; }
.library-status { color: #62685f; font-size: 12px; margin: 20px 0; }
.library-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 34px 24px; }
.library-card { min-width: 0; border-bottom: 1px solid #d5d8ca; padding-bottom: 26px; }
.library-preview { display: block; background: #f0eee5; border: 1px solid #e3e2d8; border-radius: 8px; }
.library-preview:hover { background: #e6eadb; }
.library-preview img { display: block; width: 100%; height: auto; padding: 16px; }
.library-card-copy { padding: 20px 0 0; }
.library-card h2 { margin: 0; font-size: 23px; letter-spacing: -.025em; line-height: 1.25; }
.library-card .eyebrow { font-size: 10px; margin-bottom: 9px; }
.library-card .model-compatibility { margin-block: 18px; }
.download-links { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.download-links a { color: #176b43; font-size: 12px; line-height: 1.5; text-underline-offset: 4px; }
.library-footnote { max-width: 760px; font-size: 13px; line-height: 1.7; color: #62685f; margin: 40px 0 0; }
.showcase-intro :focus-visible, .feature-chapter :focus-visible, .library-content :focus-visible { outline: 3px solid #3977d5; outline-offset: 5px; }
@media (max-width: 900px) {
  .feature-index { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .chapter-heading { gap: 35px; }
  .library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-built { gap: 30px; }
}
@media (max-width: 600px) {
  .showcase-intro, .library-intro { padding-top: 42px; padding-bottom: 36px; }
  .showcase-intro .lede, .library-intro .lede { font-size: 17px; }
  .intro-art { margin-block: 18px; }
  .feature-index { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 18px; margin-top: 28px; }
  .feature-chapter { padding: 48px 0; scroll-margin-top: 72px; }
  .chapter-heading { grid-template-columns: 1fr; gap: 16px; margin-bottom: 26px; }
  .chapter-heading p { font-size: 16px; margin-top: 17px; }
  .chapter-art { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 16px; align-items: center; }
  .chapter-art .model-compatibility ul { gap: 4px; }
  .chapter-art .model-compatibility li { font-size: 11px; padding: 3px 6px; }
  .chapter-screen > a { padding: 6px; border-radius: 6px; }
  .chapter-screen figcaption { font-size: 10px; }
  .feature-built { grid-template-columns: 1fr; padding-block: 52px; }
  .library-grid { grid-template-columns: 1fr; gap: 30px; }
  .library-preview img { max-height: 300px; object-fit: contain; }
}
@media (max-width: 360px) { .chapter-art { grid-template-columns: 105px minmax(0, 1fr); gap: 10px; } }