:root{--ink:#171a22;--muted:#666c79;--line:#e2e4e9;--paper:#f7f8fa;--white:#fff;--accent:#e85c3a;--dark:#242936}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--white);font-family:"Hiragino Sans","Yu Gothic UI","Noto Sans JP",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.discover-header{display:flex;height:68px;align-items:center;justify-content:space-between;padding:0 max(22px,calc((100vw - 1180px)/2));border-bottom:1px solid var(--line);background:#fff}.discover-header>a:last-child{font-size:.82rem;font-weight:800;border-bottom:1px solid var(--ink)}.brand{display:flex;align-items:center;gap:10px;font-size:1rem;font-weight:850}.breadcrumbs{display:flex;width:min(1180px,calc(100% - 40px));gap:10px;margin:22px auto;color:var(--muted);font-size:.72rem}.breadcrumbs a{text-decoration:underline;text-underline-offset:3px}.discover-hero{display:grid;width:min(1180px,calc(100% - 40px));grid-template-columns:.9fr 1.1fr;gap:70px;margin:65px auto 90px}.discover-hero>p,.hub-hero>p:first-child,.section-head>p,.reading-guide>p{color:var(--accent);font:850 .72rem/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.14em}.discover-hero h1{grid-column:1;margin:14px 0 0;font-size:clamp(2.8rem,5.5vw,5.5rem);line-height:1.12;letter-spacing:-.06em}.discover-hero h1 strong{color:var(--accent)}.hero-summary{grid-column:2;grid-row:1/3;align-self:end;padding:34px;border-left:4px solid var(--accent);background:var(--paper)}.hero-summary>p{margin:0;color:var(--muted);font-size:.95rem}.hero-summary dl{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:30px 0 0}.hero-summary dt{color:var(--muted);font-size:.68rem}.hero-summary dd{margin:4px 0 0;font-size:.9rem;font-weight:850}.discover-list{padding:85px max(22px,calc((100vw - 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