:root{--ink:#181714;--muted:#716b62;--line:#e8e1d6;--paper:#fffdfa;--cream:#f6f1e8;--soft:#f1ebe1;--gold:#a57b38;--gold2:#c9aa72;--ok:#2f7054;--warn:#965d28;--shadow:0 14px 40px rgba(45,36,24,.08);--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.shell{width:min(1180px,calc(100% - 40px));margin:auto}.site-header{height:74px;padding:0 max(20px,calc((100vw - 1180px)/2));display:flex;align-items:center;gap:28px;position:sticky;top:0;background:rgba(255,253,250,.93);backdrop-filter:blur(18px);z-index:30;border-bottom:1px solid rgba(232,225,214,.7)}.brand{display:flex;align-items:baseline;gap:16px;margin-right:auto}.brand-main{font:600 20px/1 Georgia,"Times New 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