body{margin:0;background:#f4f6f8;color:#1f2a37;font-family:-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;line-height:1.8}
main{max-width:720px;margin:0 auto;padding:32px 20px 64px}
h1{font-size:1.35rem;margin:0 0 8px;color:#1d3557}
h2{font-size:1.05rem;margin:32px 0 8px;border-left:4px solid #2a7f8e;padding-left:10px;color:#1d3557}
p{margin:8px 0}
ul{padding-left:1.4em}
a{color:#1f6f7c;word-break:break-all}
.todo{background:#fff4d6;padding:0 4px;border-radius:3px}
.note{background:#fff;border-radius:10px;padding:12px 14px;margin:12px 0}
nav{font-size:.9rem;margin-bottom:20px}
footer{margin-top:48px;font-size:.85rem;color:#5b6675}