:root {
  --ink: #14272d;
  --muted: #596b70;
  --green: #2f6b5a;
  --green-dark: #235242;
  --cream: #faf7ef;
  --paper: #fffdf8;
  --line: #ded4c2;
  --accent: #b8642b;
}
* { box-sizing: border-box; }
html { overflow-x: hidden; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #fffaf1 0%, #f7f2e8 100%);
  font-family: "Yu Gothic", "YuGothic", "Hiragino Sans", "Meiryo", sans-serif;
  line-height: 1.85;
  overflow-x: hidden;
}
a { color: inherit; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding: 18px 5vw;
  background: rgba(255, 253, 248, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  color: #fff;
  background: var(--green);
  font-size: 22px;
  font-family: "Yu Mincho", "YuMincho", serif;
}
.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  font-weight: 700;
}
.site-header nav a { text-decoration: none; }
main {
  width: min(1040px, 92vw);
  margin: 0 auto;
  padding: 48px 0 80px;
}
.hero {
  padding: 38px 0 22px;
}
.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: .08em;
}
h1, h2, h3 {
  margin: 0;
  line-height: 1.35;
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
}
h1 { font-size: clamp(32px, 4.8vw, 58px); }
h2 { margin-top: 34px; font-size: clamp(24px, 3vw, 34px); }
h3 { margin-top: 24px; font-size: 22px; }
.lead {
  max-width: 780px;
  color: var(--muted);
  font-size: 18px;
}
.article-card, .cta-card, .notice-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 18px 45px rgba(55, 42, 23, .08);
}
.article-card {
  padding: clamp(24px, 4vw, 42px);
}
.article-card p, .article-card li {
  color: #3f5054;
}
.article-card ul {
  margin: 12px 0 0;
  padding-left: 1.3em;
}
.note {
  padding: 16px 18px;
  border: 1px solid #ead0b7;
  border-radius: 16px;
  color: #67411f;
  background: #fff4d8;
}
.cta-card {
  margin-top: 34px;
  padding: 28px;
  background: #f4fbf6;
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 18px;
}
.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 52px;
  padding: 14px 22px;
  border-radius: 14px;
  border: 1px solid var(--green);
  text-decoration: none;
  font-weight: 800;
}
.button.primary {
  color: #fff;
  background: var(--green);
}
.button.primary:hover { background: var(--green-dark); }
.button.secondary {
  color: var(--ink);
  background: #fffdf8;
  border-color: var(--line);
}
.footer {
  padding: 28px 5vw;
  color: var(--muted);
  background: #efe8dc;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  width: min(1040px, 92vw);
  margin: 0 auto;
}
@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }
  .site-header nav {
    gap: 12px;
  }
  .button-row {
    flex-direction: column;
  }
  .button {
    width: 100%;
  }
}