.back-link[data-astro-cid-7kqzjlag]{display:inline-block;margin-top:var(--space-4);font-size:.875rem;color:var(--color-text-muted);transition:color var(--transition)}.back-link[data-astro-cid-7kqzjlag]:hover{color:var(--color-accent)}.book-detail[data-astro-cid-7kqzjlag]{padding-block:var(--space-8)}.book-detail__layout[data-astro-cid-7kqzjlag]{display:grid;grid-template-columns:300px 1fr;gap:var(--space-8);align-items:start}.book-detail__aside[data-astro-cid-7kqzjlag]{position:sticky;top:80px;display:flex;flex-direction:column;gap:var(--space-3)}.book-detail__cover-wrap[data-astro-cid-7kqzjlag]{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--color-border);box-shadow:var(--shadow-lg);aspect-ratio:2 / 3;display:flex;align-items:center;justify-content:center;background:var(--color-surface-2)}.book-detail__cover-wrap[data-astro-cid-7kqzjlag] img[data-astro-cid-7kqzjlag]{width:100%;height:100%;object-fit:cover}.book-detail__cover-badges[data-astro-cid-7kqzjlag]{display:flex;gap:8px;flex-wrap:wrap}.book-detail__cta-box[data-astro-cid-7kqzjlag]{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-3)}.book-detail__amazon-btn[data-astro-cid-7kqzjlag]{width:100%;justify-content:center;gap:8px;font-size:1rem}.external-icon[data-astro-cid-7kqzjlag]{opacity:.7;flex-shrink:0}.book-detail__meta-list[data-astro-cid-7kqzjlag]{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.meta-row[data-astro-cid-7kqzjlag]{display:flex;justify-content:space-between;align-items:center;padding:12px var(--space-3);border-bottom:1px solid var(--color-border);gap:var(--space-2)}.meta-row[data-astro-cid-7kqzjlag]:last-child{border-bottom:none}.meta-label[data-astro-cid-7kqzjlag]{font-size:.8125rem;color:var(--color-text-muted);font-weight:500}.meta-value[data-astro-cid-7kqzjlag]{font-size:.875rem;color:var(--color-text);font-weight:600;text-align:right;display:flex;align-items:center;gap:6px}.meta-link[data-astro-cid-7kqzjlag]{color:var(--color-accent);transition:color var(--transition)}.meta-link[data-astro-cid-7kqzjlag]:hover{color:var(--color-accent-light)}.book-detail__content[data-astro-cid-7kqzjlag]{padding-top:var(--space-2)}.book-detail__header[data-astro-cid-7kqzjlag]{margin-bottom:var(--space-5)}.book-detail__title[data-astro-cid-7kqzjlag]{font-size:clamp(1.75rem,3.5vw,2.5rem);margin-bottom:var(--space-2)}.book-detail__author[data-astro-cid-7kqzjlag]{font-size:1.125rem;color:var(--color-text-muted);font-weight:500;margin:0}.book-detail__description[data-astro-cid-7kqzjlag]{margin-bottom:var(--space-5)}.book-detail__description[data-astro-cid-7kqzjlag] p[data-astro-cid-7kqzjlag]{font-size:1.0625rem;line-height:1.8;color:var(--color-text-muted)}.book-detail__tags[data-astro-cid-7kqzjlag]{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.tags-label[data-astro-cid-7kqzjlag]{font-size:.8125rem;font-weight:700;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.08em}.tag[data-astro-cid-7kqzjlag]{padding:5px 12px;background-color:var(--color-surface-2);border:1px solid var(--color-border);border-radius:100px;font-size:.8125rem;color:var(--color-text-muted);transition:border-color var(--transition),color var(--transition)}.tag[data-astro-cid-7kqzjlag]:hover{border-color:var(--color-accent);color:var(--color-accent)}.related-grid[data-astro-cid-7kqzjlag]{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4);margin-top:var(--space-4)}@media(max-width:900px){.book-detail__layout[data-astro-cid-7kqzjlag]{grid-template-columns:1fr}.book-detail__aside[data-astro-cid-7kqzjlag]{position:static;display:grid;grid-template-columns:180px 1fr;gap:var(--space-3)}.book-detail__cover-wrap[data-astro-cid-7kqzjlag]{grid-row:1 / 3}.related-grid[data-astro-cid-7kqzjlag]{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.book-detail__aside[data-astro-cid-7kqzjlag]{grid-template-columns:1fr}.book-detail__cover-wrap[data-astro-cid-7kqzjlag]{max-width:220px;margin-inline:auto}.related-grid[data-astro-cid-7kqzjlag]{grid-template-columns:1fr;max-width:320px}}