:root {
  --background: #FBF7F3;
  --surface: #FFFFFF;
  --surface-muted: #F4EEE9;
  --text: #3B302B;
  --subtext: #6F625B;
  --primary: #B9534B;
  --primary-pressed: #9E443D;
  --primary-ink: #A84A42;
  --primary-soft: #FBE6E2;
  --border: #E6DCD5;
  --divider: #EFE7E1;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}
header, main, footer { max-width: 720px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
header { padding-top: 24px; padding-bottom: 8px; }
.site-name {
  font-family: "Zen Maru Gothic", sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--primary-ink);
  text-decoration: none;
  display: inline-block;
  padding: 8px 0;
}
main { padding-top: 16px; padding-bottom: 40px; }
h1, h2, h3 { font-family: "Zen Maru Gothic", sans-serif; font-weight: 700; line-height: 1.5; margin: 0; }
h1 { font-size: 26px; margin-bottom: 16px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
h3 { font-size: 17px; margin: 20px 0 4px; }
p { margin: 0 0 16px; }
ul, ol { margin: 0 0 16px; padding-left: 1.5em; }
li { margin-bottom: 4px; }
a { color: var(--primary-ink); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--primary-pressed); }
a:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
.lead { font-size: 18px; }
.card { background: var(--surface); border-radius: 24px; padding: 24px 20px; box-shadow: 0 2px 12px rgba(59, 48, 43, 0.06); margin: 24px 0; }
.note { background: var(--surface-muted); border-radius: 12px; padding: 12px 16px; }
.small { color: var(--subtext); font-size: 14px; }
table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: 16px; }
th, td { text-align: left; vertical-align: top; padding: 12px 16px; border-bottom: 1px solid var(--divider); }
th { color: var(--subtext); font-weight: 700; width: 11em; }
@media (max-width: 600px) {
  table, tbody, tr, th, td { display: block; width: 100%; }
  tr { border-bottom: 1px solid var(--divider); padding: 12px 0; }
  th, td { border: 0; padding: 0 16px; }
  th { font-size: 14px; }
}
footer { border-top: 1px solid var(--divider); padding-top: 24px; padding-bottom: 40px; color: var(--subtext); font-size: 14px; }
footer nav { display: flex; flex-wrap: wrap; gap: 0 20px; }
footer nav a { display: inline-block; padding: 12px 0; }
footer p { margin: 8px 0 0; }