:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  line-height: 1.7;
  color: #2b2b2b;
  background: #f7f5ef;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #f7f5ef;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.container {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 40px;
}

.hero {
  margin-bottom: 28px;
}

.hero.compact {
  margin-bottom: 36px;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: #666;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 3rem);
  line-height: 1.2;
}

h2 {
  margin-top: 0;
  font-size: 1.3rem;
}

.lead {
  margin-top: 12px;
  color: #555;
}

.card {
  margin: 18px 0;
  padding: 24px;
  border: 1px solid #dedbd3;
  border-radius: 16px;
  background: #fff;
}

.contact {
  font-weight: 600;
  word-break: break-all;
}

.note {
  font-size: 0.9rem;
  color: #666;
}

.button {
  display: inline-block;
  padding: 10px 14px;
  border: 1px solid #2b2b2b;
  border-radius: 10px;
  text-decoration: none;
}

.document section {
  margin: 36px 0;
}

.back {
  margin-bottom: 28px;
  font-size: 0.95rem;
}

footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid #dedbd3;
  color: #666;
  font-size: 0.9rem;
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 24px, 760px);
    padding-top: 36px;
  }

  .card {
    padding: 20px;
  }
}