:root{--ink-950:#0b1220;--ink-900:#0e1626;--ink-800:#172033;--paper-100:#f7faf8;--paper-200:#eef3f1;--paper-300:#dbe4e1;--text-100:#0b1220;--text-200:#4f5d70;--text-300:#667085;--text-900:#0b1220;--accent-500:#1559c9;--accent-400:#1e68d7;--accent-soft:#1559c91a;--line-soft:#e2e8e6;--line-strong:#cbd6d2;--surface-1:#fff;--surface-2:#f1f6f4;--surface-3:#fff;--max-w:1124px;--space-xs:.5rem;--space-s:1rem;--space-m:1.8rem;--space-l:3.5rem;--space-xl:5.5rem;--radius-m:16px;--radius-l:20px;--tracking-display:.035em;--tracking-heading:.025em;--tracking-subheading:.018em}*{box-sizing:border-box}html,body{margin:0;padding:0}html{scroll-behavior:smooth}body{color:var(--text-100);background:var(--paper-100);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Noto Sans JP,DM Sans,Hiragino Sans,Yu Gothic,sans-serif;line-height:1.75}h1,h2,h3{font-kerning:normal;font-feature-settings:"kern" 1, "palt" 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