:root{--paper:#f7fafd;--ink:#21354e;--muted:#5c6d80;--accent:#2b669f;--line:#dbe4ee;--highlight:#cce7f6}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;font-size:15px;line-height:1.9;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}a:focus-visible{outline:3px solid #2467a5;outline-offset:6px}.wrap{width:min(1180px,calc(100% - 96px));margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip{position:fixed;top:-80px;left:20px;background:var(--ink);color:white;padding:12px;z-index:10}.skip:focus{top:10px}.header{background:rgba(247,250,253,.98);border-bottom:1px solid 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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}