:root{--navy:#073568;--ink:#102e50;--blue:#0877d9;--cyan:#12b9ce;--pale:#eef8ff;--line:#dce9f4;--muted:#587088;--radius:20px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Hiragino Sans','Noto Sans CJK JP','Yu Gothic',sans-serif;font-size:16px;line-height:1.85;background:#fff}a{color:var(--blue);text-underline-offset:4px}a,button,input,select,textarea{touch-action:manipulation}button,input,select,textarea{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}img{max-width:100%;display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--navy);line-height:1.45;letter-spacing:.02em}h1{font-size:clamp(36px,4.6vw,66px);font-weight:800;line-height:1.3}h2{font-size:clamp(27px,3vw,40px);font-weight:700;margin-bottom:28px}h3{font-size:21px;margin:18px 0 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