:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  color: #202a2f;
  background: #f7faf8;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body { margin: 0; min-width: 320px; line-height: 1.75; }

a { color: #087f63; text-underline-offset: .2em; }
a:hover { color: #06664f; }
a:focus-visible { outline: 3px solid #087f63; outline-offset: 4px; border-radius: 3px; }

.site-header {
  background: #fff;
  border-bottom: 1px solid #dde7e2;
}

.header-inner {
  max-width: 1040px;
  min-height: 84px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 216px; height: auto; }
.header-link { font-size: 14px; font-weight: 700; white-space: nowrap; }

main { max-width: 800px; margin: 0 auto; padding: 44px 24px 72px; }
.back-link { font-size: 14px; font-weight: 700; }
h1 { font-size: clamp(28px, 4vw, 34px); line-height: 1.45; margin: 20px 0 8px; }
.lead { color: #596963; margin: 0 0 28px; }
.document { background: #fff; border: 1px solid #dde7e2; border-radius: 20px; padding: 12px 32px 30px; }
section { padding: 20px 0; border-bottom: 1px solid #dde7e2; }
section:last-child { border-bottom: 0; }
h2 { font-size: 20px; line-height: 1.5; margin: 0 0 12px; }
p, ul { margin: 0 0 12px; }
p:last-child, ul:last-child { margin-bottom: 0; }
ul { padding-left: 1.35em; }
li + li { margin-top: 7px; }
.site-footer { border-top: 1px solid #dde7e2; background: #fff; }
.footer-inner { max-width: 1040px; margin: 0 auto; padding: 24px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; font-size: 14px; color: #596963; }
.footer-links { display: flex; flex-wrap: wrap; gap: 10px 20px; }

@media (max-width: 540px) {
  .header-inner { min-height: 72px; padding: 12px 16px; gap: 12px; }
  .brand img { width: 172px; }
  .header-link { font-size: 12px; }
  main { padding: 28px 16px 54px; }
  .document { padding: 6px 18px 18px; }
  h2 { font-size: 18px; }
  .footer-inner { padding: 24px 16px; }
}

@media (max-width: 360px) {
  .brand img { width: 148px; }
}