:root {
  --bg: #f6f7fb; --panel: #fff; --border: #e1e5ee;
  --text: #1c2333; --muted: #68718a; --accent: #0B1F3A;
}
* { box-sizing: border-box; margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font-family: -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.8; padding: 24px 16px;
}
main {
  max-width: 720px; margin: 0 auto; background: var(--panel);
  border: 1px solid var(--border); border-radius: 14px; padding: 32px 28px;
}
.brand {
  font-weight: 800; font-size: 15px;
  background: linear-gradient(90deg, #0B1F3A, #C9A24B);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
h1 { font-size: 24px; margin: 10px 0 4px; }
h2 { font-size: 17px; margin: 26px 0 8px; }
.updated { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
p, li { font-size: 15px; }
ul { padding-left: 22px; margin: 8px 0; }
li { margin: 4px 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.footer { margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--muted); }