html{font-size:16px}body{font-size:1rem;background:#f7f7f9;color:#222;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;margin:0;padding:0 1em 2em 1em;line-height:1.4}header{margin-top:2.5em;margin-bottom:1.5em;text-align:center}h1{font-size:1.8em;margin-bottom:.5em}h2{font-size:1.4rem;font-weight:normal}h3{font-size:1.15rem}h4{font-size:1rem}.anchor-box{background:#fff;padding:1em 1.3em 1.3em 1.3em;max-width:600px;margin:1.5em auto;box-sizing:border-box;border:1px solid #ccc;border-radius:6px}.notice{color:#991a1a;font-weight:600}.official{color:#cc0000;font-weight:700}nav a{font-size:1rem;font-weight:700;color:#185e99;margin:0 .6em;text-decoration:none}nav a:hover,nav a:focus{text-decoration:underline}ul{margin-left:1.5em}footer{color:#888;text-align:center;font-size:.98em;margin-top:3em}@media(min-width:768px){nav a{font-size: 1.2rem}}