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@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.worksheet{white-space:pre-wrap;overflow-wrap:anywhere;font:inherit;background:#fff;padding:20px;border:1px solid #ddd}.article nav{font-size:12px;margin-bottom:24px}.article li{margin-bottom:12px}.article .cover strong{font-size:clamp(20px,3vw,34px)}

/* Presentation edition */
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@media(max-width:1000px){.desktop-links{gap:14px}.hero h1{font-size:34px}.cards{gap:18px}.card .cover strong{font-size:19px}}
@media(max-width:700px){.hero{min-height:330px;padding:116px 0 36px}.hero h1{font-size:27px;line-height:1.65}.hero-desc{font-size:12px;max-width:95%}.hero .hero-name,.side .hero-name{font-size:11px}.home-layout{padding-top:30px}.section-title h2{font-size:21px}.section-title span{font-size:9px}.topic-tabs{gap:7px}.topic-tabs a{font-size:11px;padding:6px 10px}.cards{gap:14px}.card .cover{padding:16px 11px;aspect-ratio:1.25}.card .cover strong{font-size:17px}.card .cover-kicker{font-size:9px}.card h2{font-size:13px;margin-left:11px;margin-right:11px}.card .meta-row{margin-left:11px;font-size:10px}.card .cover-en{font-size:8px}.article>.cover{min-height:170px}.hero:after{opacity:.5}.article p{line-height:1.95}}
@media(prefers-reduced-motion:reduce){.card{transition:none}.card:hover{transform:none}}

@media(max-width:700px){.hero h1{font-size:22px;letter-spacing:.015em}.card .cover{aspect-ratio:1.85}.card .cover strong{font-size:23px}}

/* Reader-first product references */
.pr-badge{display:inline-flex;align-items:center;justify-content:center;vertical-align:middle;font-size:10px;font-weight:600;line-height:1;padding:4px 7px;border:1px solid #b8bcc2;border-radius:4px;background:#f5f6f7;color:#555b63;letter-spacing:.04em;white-space:nowrap}.button .pr-badge{margin-left:5px;background:#fff;color:#555b63;border-color:#ddd}
.product-thumbnail{margin:30px 0;max-width:680px}.product-thumbnail img{display:block;width:100%;height:auto;border-radius:6px;border:1px solid #e7e7e7}.product-thumbnail figcaption{font-size:11px;color:#6d6d6d;line-height:1.8;margin-top:10px}.product-thumbnail a{text-decoration:underline}.product-facts{margin:42px 0;padding:28px;background:#faf9f7;border:1px solid #e7e4df;border-radius:8px}.article .product-facts h2{margin-top:0;font-size:22px}.rating-line{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin:20px 0 6px}.rating-stars{display:inline-block;position:relative;color:#d9d9d9;font-size:28px;line-height:1.2;letter-spacing:2px;white-space:nowrap}.rating-fill{position:absolute;left:0;top:0;color:#b97905;overflow:hidden;white-space:nowrap}.rating-line strong{font-size:28px}.rating-line small{font-size:14px;font-weight:400;color:#777}.rating-line>span:last-child{font-size:13px}.product-facts dl{display:grid;grid-template-columns:90px 1fr;font-size:14px;line-height:1.8;margin:22px 0}.product-facts dt,.product-facts dd{margin:0;padding:11px 0;border-bottom:1px solid #e7e4df}.product-facts dt{color:#666}.product-facts dd{padding-left:16px}.article .notice{font-size:11px;line-height:1.7;color:#737373;background:transparent;border:none;padding:0;margin:20px 0}.article .toc{margin-bottom:36px}.article section[id]{scroll-margin-top:100px}@media(max-width:700px){.product-facts{padding:20px 16px}.article .product-facts h2{font-size:19px}.product-facts dl{grid-template-columns:70px 1fr}.rating-line{gap:10px}.rating-stars{font-size:25px}}

.brand-logo{display:block;position:relative;width:250px;height:44px;overflow:hidden;background:transparent;border-radius:0;flex-shrink:0}.brand-logo img{position:absolute;width:calc(100% * 1.08);max-width:none;height:auto;left:-4%;top:50%;transform:translateY(-50%)}.site-header{background:#fff!important;color:#303030!important}.site-header .desktop-links>a{color:#303030}.site-header .desktop-links>a.header-button{background:#303030;color:#fff}.site-header .desktop-links>a.header-button:hover{background:#4a4a4a;color:#fff}.site-header .menu-toggle span{background:#303030}.site-header .header-inner{gap:22px}.footer-brand .brand-logo{width:260px;height:48px}.card .cover:after{content:none}@media(max-width:1100px){.site-header .desktop-links{display:none}.site-header .menu-toggle{display:block}}@media(max-width:700px){.brand-logo{width:220px;height:40px}.site-header .header-inner{gap:12px}}

.brain-card-image{aspect-ratio:1280/670;width:100%;background:#f3f3f3;overflow:hidden}.brain-card-image img{display:block;width:100%;height:100%;object-fit:contain}.recommend .brain-card-image{width:100px;flex:0 0 100px;align-self:flex-start;border-radius:3px}.card .brain-card-image{border-bottom:1px solid #eee}

.editorial-hero{margin:28px 0}.editorial-hero img{display:block;width:100%;height:auto;border-radius:5px}.brain-card-image{aspect-ratio:1200/630;background:#f6f3f7}.brain-card-image img{object-fit:contain}.recommend .brain-card-image{width:110px;flex-basis:110px}