:root { --primary: #06BBCC; --light: #F0FBFC; --dark: #181d38; }
body { font-family: 'Noto Sans JP', sans-serif; color: #333; }

.page-header {
  background: linear-gradient(135deg, var(--dark) 0%, #0a4060 100%);
  padding: 60px 0 50px;
  color: #fff;
}
.page-header .label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 10px;
}
.page-header h1 {
  font-size: 1.8rem;
  font-weight: 900;
  margin: 0;
}

.doc-section {
  padding: 72px 0 80px;
}

.doc-body {
  font-size: 14.5px;
  line-height: 1.9;
  color: #444;
}
.doc-body h4 {
  font-size: 16px;
  font-weight: 800;
  color: #1a3a4c;
  border-left: 3px solid var(--primary);
  padding-left: 12px;
  margin-top: 40px;
  margin-bottom: 12px;
}
.doc-body p { margin-bottom: 12px; }
.doc-body .sub-list {
  padding-left: 1.2em;
}
.doc-body .sub-list li {
  margin-bottom: 4px;
}

.contact-box {
  background: #f7fdfe;
  border: 1.5px solid #c8eef1;
  border-radius: 10px;
  padding: 24px 28px;
  font-size: 14.5px;
  line-height: 2;
}
.doc-dates {
  font-size: 13px;
  color: #888;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid #e5f7f9;
}