:root{--paper:#f7f7f4;--paper-raised:#fff;--ink:#171816;--muted:#636660;--rule:#d8dad4;--rule-strong:#aeb1aa;--focus:#185ea8;--r1:clamp(2.15rem, 5vw, 3.75rem);--r2:clamp(1.45rem, 2.5vw, 2rem);--r3:clamp(.78rem, 1vw, .92rem);--r4:clamp(1.06rem, 1.4vw, 1.22rem);--r5:clamp(.76rem, 1vw, .86rem);--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-24:6rem;--space-32:8rem}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--paper)}body{color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans CJK SC,Microsoft 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p{margin-top:var(--space-24);text-align:left}.discoverySection,.shelfPreview,.recentSection{padding:var(--space-16) 0}.discoveryTabs{border-bottom:0;flex-direction:column;align-items:stretch}.discoveryTabs button{border:1px solid var(--rule);border-bottom:1px solid var(--rule);text-align:left}.discoveryTabs button.isActive{border-color:var(--ink);box-shadow:inset 4px 0 0 var(--ink)}.discoveryGrid{grid-template-columns:1fr}.discoveryGrid button{border-right:0;min-height:132px}.discoveryResult{padding:var(--space-4)}.discoveryResult>div{grid-template-columns:1fr}.discoveryResult article{grid-template-columns:minmax(92px,112px) minmax(0,1fr)}.discoveryResult article img{width:100%}.splitIntro{display:block}.miniShelf{grid-template-columns:1fr}.bookMiniCard{gap:var(--space-4);grid-template-columns:minmax(110px,38%) 1fr;display:grid}.bookMiniCard>div{padding-top:0}.valueSection,.trustStrip,.contactPanel{margin-block:var(--space-16);padding:var(--space-8);gap:var(--space-6);grid-template-columns:1fr}.recentGrid{grid-template-columns:1fr}.recentGrid article{border-right:0;border-bottom:1px solid var(--rule);min-height:0}.shelfHero{display:block}.shelfFilters{margin-top:var(--space-6)}.catalogGrid{gap:var(--space-16);grid-template-columns:1fr}.shelfCard{gap:var(--space-4);grid-template-columns:minmax(130px,40%) 1fr;display:grid}.shelfCardCopy{padding-top:var(--space-4)}.shelfCardCopy h2{font-size:1.35rem}.cardActions{gap:var(--space-2);flex-direction:column}.bookHero{gap:var(--space-8);grid-template-columns:1fr}.bookIdentity{order:-1}.bookCoverStage{padding:var(--space-6)}.bookCoverStage img{max-width:300px}.orientationSection,.retailSection,.careCallout{gap:var(--space-8);grid-template-columns:1fr}.orientationSection dl,.seriesNav>div{grid-template-columns:1fr}.readingSection{display:block}.readingSection article{margin-bottom:var(--space-12)}.relatedSection>div{grid-template-columns:1fr}.careStep>header{grid-template-columns:40px 1fr}.careStep>header>span{width:36px;height:36px}.choiceGrid{margin-left:0}.deviceChoices,.bookChoices,.regionChoices{grid-template-columns:repeat(2,1fr)}.humanSupport,.pressFacts{padding:var(--space-8) var(--space-4);grid-template-columns:1fr}.updatesList article{gap:var(--space-3);grid-template-columns:1fr}.aboutLinks{flex-direction:column;align-items:flex-start}}@media (width<=420px){.shelfCard{grid-template-columns:1fr}.shelfCover img{object-fit:contain;max-height:520px}.bookMiniCard{grid-template-columns:110px 1fr}.regionChoices{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}