:root{--background:#fff;--foreground:#111827;--muted:#374151;--accent:#1e3a5f;--border:#e5e7eb;--surface:#f3f4f6;--subtle:#667085;--font-sans:"Inter", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;--font-serif:var(--font-noto-serif-jp), "Noto Serif JP", "Hiragino Mincho ProN", serif;--font-heading:var(--font-merriweather), var(--font-noto-serif-jp), "Noto Serif JP", "Hiragino Mincho ProN", serif;--font-logo:var(--font-merriweather), Georgia, serif;--col:240px;--gap:20px;--page-w:720px;--pad:24px;--sec:56px;--lightningcss-light:initial;--lightningcss-dark: ;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--band-gray:#f2f4f5;--band-dark1:#101420;--band-dark2:#101420}*{box-sizing:border-box}body{background:var(--background);color:var(--foreground);font-family:var(--font-heading);line-break:strict;margin:0}a{color:var(--accent);text-decoration:none;transition:color 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