:root{--ink:#0d1b1e;--ink2:#2a3a3e;--muted:#5d6c70;--muted2:#8d9a9e;--bg:#fff;--bg2:#f4f9fa;--border:#e1eaec;--border2:#c9d6d9;--accent:#0a7c88;--accent2:#075a63;--accent-light:#19b3c0;--accent-soft:#e6f7f8;--coral:#e5502f;--coral2:#c93f20;--coral-soft:#fdeee9;--coral-ink:#9c2f15;--radius:14px;--radius-lg:20px;--max:1120px;--shadow-sm:0 1px 2px rgba(13,27,30,.05),0 1px 3px rgba(13,27,30,.06);--shadow-lg:0 18px 44px -14px rgba(13,27,30,.14),0 6px 16px -8px rgba(13,27,30,.08)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:Noto Sans JP,system-ui,-apple-system,Hiragino Sans,sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px;padding-bottom:68px}@media(min-width:861px){body{padding-bottom:0}}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}.w{max-width:var(--max);margin:0 auto;padding:0 18px}section{scroll-margin-top:72px}.sec{padding:56px 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