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strong[data-astro-cid-ngah4fbp]{color:var(--color-primary-deep);font-size:1.08rem}.explanation-grid[data-astro-cid-ngah4fbp]{border-block:1px solid var(--color-border);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.explanation-grid[data-astro-cid-ngah4fbp]>div[data-astro-cid-ngah4fbp]{padding:var(--space-8)}.explanation-grid[data-astro-cid-ngah4fbp]>div[data-astro-cid-ngah4fbp]+div[data-astro-cid-ngah4fbp]{border-left:1px solid var(--color-border)}.explanation-grid[data-astro-cid-ngah4fbp] h3[data-astro-cid-ngah4fbp]{margin-bottom:var(--space-3)}.explanation-grid[data-astro-cid-ngah4fbp] p[data-astro-cid-ngah4fbp],.usage-copy[data-astro-cid-ngah4fbp] p[data-astro-cid-ngah4fbp]{color:var(--color-muted);margin:0;line-height:1.8}.usage-copy[data-astro-cid-ngah4fbp]{gap:var(--space-10);grid-template-columns:repeat(2,minmax(0,1fr));margin-left:62px;display:grid}.textbook-body[data-astro-cid-ngah4fbp]>.feedback-strip[data-astro-cid-ngah4fbp]{align-items:center;gap:var(--space-8);padding:var(--space-8) var(--space-10);border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);background:var(--color-surface-subtle);grid-template-columns:minmax(0,1fr) auto;margin-bottom:0;display:grid}.feedback-strip[data-astro-cid-ngah4fbp] h2[data-astro-cid-ngah4fbp]{margin-bottom:var(--space-2);font-size:1.45rem}.feedback-strip[data-astro-cid-ngah4fbp] p[data-astro-cid-ngah4fbp]{color:var(--color-muted);margin:0}.feedback-strip[data-astro-cid-ngah4fbp] a[data-astro-cid-ngah4fbp]{min-height:44px;padding:10px var(--space-5);border-radius:var(--radius-sm);color:#fff;background:var(--color-primary);white-space:nowrap;font-weight:620}.feedback-strip[data-astro-cid-ngah4fbp] a[data-astro-cid-ngah4fbp]:hover{background:var(--color-primary-deep)}@media (width>=1660px){.textbook-lead[data-astro-cid-ngah4fbp]{white-space:nowrap}}@media (width<=900px){.textbook-hero__grid[data-astro-cid-ngah4fbp]{gap:var(--space-8);grid-template-columns:1fr}.textbook-summary[data-astro-cid-ngah4fbp]{max-width:720px}.relationship-flow[data-astro-cid-ngah4fbp],.usage-copy[data-astro-cid-ngah4fbp]{margin-left:0}}@media (width<=720px){.version-table__head[data-astro-cid-ngah4fbp]{display:none}.version-table__row[data-astro-cid-ngah4fbp]{gap:var(--space-2) var(--space-4);padding-block:var(--space-5);grid-template-columns:90px minmax(0,1fr)}.version-table__row[data-astro-cid-ngah4fbp]>span[data-astro-cid-ngah4fbp]:last-child{grid-column:2}.relationship-flow[data-astro-cid-ngah4fbp]{gap:var(--space-2);grid-template-columns:minmax(0,1fr) 64px minmax(0,1fr)}.relationship-flow[data-astro-cid-ngah4fbp] svg[data-astro-cid-ngah4fbp]{height:96px}.explanation-grid[data-astro-cid-ngah4fbp]{grid-template-columns:1fr}.explanation-grid[data-astro-cid-ngah4fbp]>div[data-astro-cid-ngah4fbp]{padding:var(--space-6) 0}.explanation-grid[data-astro-cid-ngah4fbp]>div[data-astro-cid-ngah4fbp]+div[data-astro-cid-ngah4fbp]{border-top:1px solid var(--color-border);border-left:0}.usage-copy[data-astro-cid-ngah4fbp]{gap:var(--space-6);grid-template-columns:1fr}}@media (width<=620px){.textbook-page[data-astro-cid-ngah4fbp]{padding-bottom:var(--space-16)}.textbook-hero[data-astro-cid-ngah4fbp]{padding-block:var(--space-10) var(--space-12)}.textbook-hero[data-astro-cid-ngah4fbp] .breadcrumb[data-astro-cid-ngah4fbp]{margin-bottom:var(--space-6)}.textbook-lead[data-astro-cid-ngah4fbp]{font-size:1.08rem}.textbook-summary[data-astro-cid-ngah4fbp]{padding:var(--space-2) 0 var(--space-2) var(--space-4)}.textbook-body[data-astro-cid-ngah4fbp]{padding-top:var(--space-12)}.textbook-body[data-astro-cid-ngah4fbp]>section[data-astro-cid-ngah4fbp]{padding-bottom:var(--space-12);margin-bottom:var(--space-12)}.section-intro[data-astro-cid-ngah4fbp]{gap:var(--space-3);margin-bottom:var(--space-6);grid-template-columns:30px minmax(0,1fr)}.version-table__row[data-astro-cid-ngah4fbp]{grid-template-columns:72px minmax(0,1fr);padding-inline:0}.relationship-flow[data-astro-cid-ngah4fbp]{margin-bottom:var(--space-8);grid-template-columns:1fr}.relationship-flow[data-astro-cid-ngah4fbp] svg[data-astro-cid-ngah4fbp]{width:90px;height:54px;margin:0 auto;transform:rotate(90deg)}.source-books[data-astro-cid-ngah4fbp] span[data-astro-cid-ngah4fbp],.knowledge-page-mark[data-astro-cid-ngah4fbp]{text-align:center}.textbook-body[data-astro-cid-ngah4fbp]>.feedback-strip[data-astro-cid-ngah4fbp]{padding:var(--space-6);grid-template-columns:1fr;align-items:start}.feedback-strip[data-astro-cid-ngah4fbp] a[data-astro-cid-ngah4fbp]{width:fit-content}}