:root {
  --sumi: #1c1917;
  --pale: #5c564e;
  --washi: #f3efe6;
  --washi-deep: #e8e0d2;
  --indigo: #2f3d5a;
  --line: rgba(28, 25, 23, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--sumi);
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(47, 61, 90, 0.06), transparent 55%),
    radial-gradient(ellipse 70% 40% at 100% 100%, rgba(140, 110, 70, 0.08), transparent 50%),
    linear-gradient(165deg, #f7f3eb 0%, var(--washi) 45%, var(--washi-deep) 100%);
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
  line-height: 1.75;
}

.wash {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.site-header {
  margin-bottom: 36px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--indigo);
}

h1 {
  margin: 0 0 12px;
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.lede {
  margin: 0;
  color: var(--pale);
  font-size: 0.95rem;
}

.panel {
  margin-bottom: 18px;
  padding: 22px 22px 20px;
  background: rgba(255, 252, 246, 0.72);
  border: 1px solid var(--line);
  border-radius: 3px;
  backdrop-filter: blur(6px);
}

.panel.muted {
  background: transparent;
}

h2 {
  margin: 0 0 10px;
  font-family: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.panel p,
.faq dd {
  margin: 0;
  color: var(--pale);
  font-size: 0.95rem;
}

.faq {
  margin: 0;
}

.faq dt {
  margin-top: 16px;
  font-weight: 500;
  color: var(--sumi);
}

.faq dt:first-child {
  margin-top: 0;
}

.faq dd {
  margin: 6px 0 0;
}

.actions {
  margin: 16px 0 8px !important;
}

.btn {
  display: inline-block;
  padding: 12px 20px;
  color: #f7f3eb;
  background: var(--indigo);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  border-radius: 3px;
  transition: opacity 0.2s ease;
}

.btn:hover {
  opacity: 0.88;
}

.note {
  font-size: 0.85rem !important;
  opacity: 0.9;
}

.links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.links a,
footer a,
.panel a {
  color: var(--indigo);
}

footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--pale);
  font-size: 0.85rem;
}

footer p {
  margin: 0;
}

@media (max-width: 480px) {
  .wash {
    padding: 36px 18px 48px;
  }

  .panel {
    padding: 18px 16px 16px;
  }
}