body {
  margin: 0;
  font-family: "Noto Sans JP", "Avenir Next", sans-serif;
  color: #201310;
  background:
    radial-gradient(circle at top left, rgba(215, 97, 55, 0.22), transparent 28%),
    radial-gradient(circle at bottom right, rgba(240, 178, 140, 0.24), transparent 24%),
    linear-gradient(180deg, #fbf2e8 0%, #f6eee8 46%, #efe4da 100%);
}

a,
a:visited,
a:hover,
a:active {
  text-decoration: none !important;
  color: inherit;
}

iframe {
  max-width: 100%;
  border: 0;
  border-radius: 20px;
  background: #fff;
}

li { list-style: none; }

.header,
.main,
.footer {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 92px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.header-logo { font-size: 30px; font-weight: 800; }
.header-logo a,
.header-list li a,
.mail a {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
}

.header-logo a {
  min-height: 52px;
  padding: 0 20px;
  background: rgba(255,255,255,.62);
  box-shadow: 0 12px 30px rgba(78,31,14,.08);
}

.header-list ul,
.footer-list ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 0;
  padding: 0;
}

.header-list ul { justify-content: flex-end; }
.header-list li,
.footer-list li { padding: 0; }

.header-list li a {
  min-height: 44px;
  padding: 0 16px;
  background: rgba(255,255,255,.56);
  color: #6f5951;
  font-size: 14px;
  font-weight: 700;
}

.main {
  padding-top: 22px;
  padding-bottom: 48px;
}

.main {
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 28px;
  background: rgba(255,251,247,.82);
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 50px rgba(78,31,14,.12);
  padding: 24px;
}

.title,
.mail {
  display: flex;
  justify-content: center;
  text-align: center;
}

.title h1 {
  margin: 24px 0 12px;
  font-size: 1.8rem;
}

.mail {
  gap: 12px;
  flex-wrap: wrap;
}

.mail a {
  min-height: 46px;
  padding: 0 18px;
  background: #201310;
  color: #fffaf6;
  font-weight: 700;
}

.footer {
  display: flex;
  justify-content: center;
  padding-top: 12px;
  padding-bottom: 36px;
}

.footer-list {
  width: 100%;
  padding: 22px 24px;
  border-radius: 28px;
  background: rgba(32,19,16,.92);
  color: #fffaf6;
}

.footer-list ul { justify-content: center; }

@media (max-width: 860px) {
  .header { flex-direction: column; align-items: flex-start; }
  .header-list ul { justify-content: flex-start; }
}

@media (max-width: 640px) {
  .header, .main, .footer { padding-left: 16px; padding-right: 16px; }
  .main, .footer-list { border-radius: 22px; }
  .main { padding: 16px; }
}