body{margin:0;background:#f7f7f7;color:#171717;font-family:Arial,Helvetica,sans-serif;line-height:1.65}
main{max-width:900px;margin:40px auto;padding:30px;background:#fff;box-shadow:0 2px 16px rgba(0,0,0,.06)}
h1{margin-top:0}h2{margin-top:32px}h3{margin-top:24px}
a{color:#b00020}li{margin:.35rem 0}.notice{padding:16px;background:#fff3cd;border-left:4px solid #d39e00}
.back{margin-top:36px;padding-top:20px;border-top:1px solid #ddd}
small{color:#555}