:root{--blue:#1f4e8c;--ink:#1c2330;--muted:#5c6673;--line:#d8dee7;--bg:#f5f7fa}
html{background:var(--bg)}
body{max-width:960px;margin:0 auto;padding:32px 24px 64px;font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",Meiryo,sans-serif;font-size:15px;line-height:1.75;color:var(--ink)}
header#title-block-header h1{font-size:22px;border-left:4px solid var(--blue);padding-left:12px;margin:0 0 24px}
h1,h2,h3{color:var(--ink);line-height:1.4}
h2{font-size:19px;margin-top:40px;padding-bottom:6px;border-bottom:1px solid var(--line)}
h3{font-size:16px;margin-top:28px}
table{border-collapse:collapse;width:100%;font-size:13.5px;margin:12px 0;background:#fff}
th,td{border:1px solid var(--line);padding:6px 10px;vertical-align:top;text-align:left}
th{background:#e9eff7;color:var(--blue)}
code{background:#eef1f5;padding:1px 5px;border-radius:2px;font-size:13px}
a{color:var(--blue)}
.back{display:inline-block;margin-bottom:16px;font-size:13px;color:var(--muted)}