/* 元サイトの配色：水色 #93cdd6 ／ 青緑 #509fab */
:root {
  --navy: #294d55;
  --muted: #63767a;
  --line: #dcebee;
  --green: #509fab;
  --paper: #ffffff;
}

* { box-sizing: border-box; }
html { color-scheme: light; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--navy);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.page {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding: 0 6vw;
  position: relative;
  overflow: hidden;
  border-top: 5px solid #93cdd6;
}

/* ヘッダーと公式ロゴ */
header {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 30px 0;
  display: flex;
  align-items: center;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}
.brand-logo {
  display: block;
  width: 340px;
  max-width: 100%;
  height: auto;
  flex-shrink: 0;
}
.brand-note {
  font-size: 10px;
  letter-spacing: .15em;
  color: var(--muted);
  border-left: 1px solid #93cdd6;
  padding-left: 22px;
  line-height: 1.8;
}

/* 案内文とイラスト */
main {
  flex: 1;
  width: 100%;
  max-width: 1120px;
  margin: auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  align-items: center;
  gap: 44px;
  padding: 72px 0 64px;
}
.label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  color: #3c7e88;
  margin: 0 0 29px;
}
.dot {
  width: 28px;
  height: 3px;
  background: #93cdd6;
}
h1 {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(28px, 3.3vw, 43px);
  line-height: 1.65;
  font-weight: 600;
  letter-spacing: .05em;
  margin: 0 0 27px;
}
.lead {
  font-size: 15px;
  line-height: 2.2;
  letter-spacing: .025em;
  margin: 0;
  color: #43585d;
}
.message {
  margin-top: 30px;
  padding: 22px 24px;
  border-left: 3px solid #93cdd6;
  background: #f0f8fa;
  max-width: 520px;
  font-size: 13px;
  line-height: 2;
  color: var(--muted);
}
.message p { margin: 0; }
.signature {
  margin-top: 23px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--navy);
}
.art { position: relative; padding: 16px 0 0; align-self: center; }
.art::before {
  content: "";
  position: absolute;
  width: 310px;
  height: 310px;
  left: 50%;
  top: 40%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: #eef7f9;
}
.art svg { position: relative; display: block; width: 100%; height: auto; }
.art-caption {
  text-align: center;
  font-size: 10px;
  letter-spacing: .2em;
  color: #63888f;
  margin: 20px 0 0;
}

footer {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  border-top: 3px solid #93cdd6;
  padding: 24px 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: .05em;
}
.footer-label { font-size: 11px; letter-spacing: .06em; }

/* スマートフォン向け */
@media (max-width: 760px) {
  .page { padding: 0 7vw; }
  header { padding: 25px 0; }
  .brand-logo { width: 275px; max-width: 100%; }
  .brand-note { display: none; }
  main {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 44px 0 35px;
    max-width: 520px;
  }
  .label { margin-bottom: 23px; font-size: 10px; }
  h1 { font-size: 29px; letter-spacing: .025em; margin-bottom: 21px; }
  .lead { font-size: 14px; line-height: 2.1; }
  .message { margin-top: 25px; padding: 18px; font-size: 12px; }
  .art { width: 250px; margin: 6px auto 0; }
  .art::before { width: 200px; height: 200px; }
  .art-caption { margin-top: 6px; font-size: 9px; }
  footer { padding: 20px 0; display: block; line-height: 1.9; }
  .footer-label { display: none; }
}

@media print {
  .page { min-height: auto; }
  main { padding: 50px 0; }
  .art::before { background: none; }
}