* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1a1a1a;
  background: #fff;
  padding: 40px 20px;
}
.container { max-width: 720px; margin: 0 auto; }
h1 { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.date { color: #666; font-size: 14px; margin-bottom: 40px; }
h2 { font-size: 18px; font-weight: 600; margin: 32px 0 12px; }
p { margin-bottom: 12px; color: #333; }
ul { margin: 8px 0 12px 20px; }
li { margin-bottom: 6px; color: #333; }
a { color: #0066cc; text-decoration: none; }
a:hover { text-decoration: underline; }
.footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid #eee; color: #666; font-size: 14px; }