/* 見出しだけを自己配信し、未取得時もOSの丸ゴシックとゴシックで読めるようにする。 */
@font-face{font-family:'Guide Maru';src:url('/assets/guide-maru.woff2') format('woff2');font-weight:700;font-display:swap}
:root{--bg:#fbf7ee;--ink:#26303a;--blue:#2c6e9b;--deep:#225677;--coral:#d8664c;--accent:#a8452f;--yellow:#f0c24b;--card:#fffdf8;--line:#e6dccb;--muted:#54616a;--round:'Guide Maru','Hiragino Maru Gothic ProN','Yu Gothic','Meiryo',sans-serif;--sans:'Hiragino Kaku Gothic ProN','Yu Gothic','Meiryo','Noto Sans CJK JP',sans-serif}
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@media(max-width:960px){.hide-sp{display:none}.hero .wrap{gap:24px}.cols-3,.category-links{grid-template-columns:repeat(2,minmax(0,1fr))}.flow-diagram{grid-template-columns:repeat(3,minmax(0,1fr))}.flow-diagram li:nth-child(3):after{display:none}.article-layout{grid-template-columns:1fr}.article-layout aside{order:-1}.toc ol{columns:2}.aside-cta{display:none}.book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.site-footer>.wrap{grid-template-columns:repeat(2,minmax(0,1fr))}.price-cards{gap:12px}.price-card{padding:16px}.js .menu-toggle{display:block}.js .site-nav{display:none}.js .site-nav.is-open{display:flex}.site-nav{flex-direction:column;padding:12px 0}.site-nav a{padding:.4em 0}.brand small{max-width:22em}}
@media(max-width:700px){html{font-size:16px}html.large{font-size:20px}.hero .wrap{grid-template-columns:1fr;padding-top:36px;padding-bottom:36px}.hero-visual img{max-height:320px;width:100%;object-fit:cover}.price-cards{grid-template-columns:1fr}.tool-controls{grid-template-columns:1fr}.spread-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-intro{grid-template-columns:130px 1fr;gap:16px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.header-inner{gap:8px}.brand strong{font-size:1.12rem}.brand small{display:none}.brand-mark{width:32px}.font-toggle,.menu-toggle{font-size:.7rem;padding:.45em .5em}.phone-bar{font-size:.68rem}.section{padding:36px 0}.tool-panel{padding:18px}.toc ol{columns:1}}
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@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
/* 紙では操作部とナビを省き、選択済みの升目・チェック項目を切らずに残す。 */
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