:root {
  --gradient-top: #2694b0;
  --gradient-bottom: #46a06e;
  --accent-deep: #005883;
  --text: #1c2b33;
  --text-muted: #5b6b74;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  /* アプリと同じ通しのグラデーション。帯で切らないので、ヘッダーとカードの境目が出ない */
  background: linear-gradient(170deg, var(--gradient-top), var(--gradient-bottom) 70%) fixed;
  background-color: var(--gradient-bottom);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.85;
  font-size: 16px;
}

.wrap {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px;
}

header {
  color: #fff;
  padding: 44px 0 28px;
  text-align: center;
}

header h1 { font-size: 1.55rem; margin: 0 0 6px; letter-spacing: 0.01em; }
header .page-title { margin: 0; font-size: 1.1rem; font-weight: 600; opacity: 0.95; }
header .lead { margin: 8px 0 0; opacity: 0.9; font-size: 0.9rem; }

main { padding: 28px 0 8px; }

.card {
  /* アプリのカードと同じく、地は白の不透明度92% */
  background: rgba(255, 255, 255, 0.92);
  border-radius: 20px;
  padding: 24px 22px;
  margin-bottom: 20px;
  box-shadow: 0 4px 18px rgba(28, 43, 51, 0.12);
}

.card h2 {
  font-size: 1.15rem;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(0, 88, 131, 0.12);
  color: var(--accent-deep);
}

.card h3 {
  font-size: 1rem;
  margin: 24px 0 6px;
}
.card h3:first-of-type { margin-top: 8px; }

.card p { margin: 0 0 10px; }

.card ol, .card ul { margin: 0 0 10px; padding-left: 1.5em; }
.card ol { list-style: decimal; }
.card li { margin-bottom: 4px; }

.contact { font-size: 1.05rem; font-weight: 600; }
.contact a { color: var(--accent-deep); }

.note { color: var(--text-muted); font-size: 0.9rem; }

.button {
  display: inline-block;
  background: var(--accent-deep);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
}
.button:hover { opacity: 0.9; }

.updated { color: var(--text-muted); font-size: 0.9rem; margin-top: -6px; }

.links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 8px 0 32px;
}
.links a { color: #fff; font-weight: 600; }

footer {
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  padding: 8px 0 28px;
  font-size: 0.85rem;
}

a { color: var(--accent-deep); }

@media (max-width: 480px) {
  body { font-size: 15px; }
  .card { padding: 20px 16px; }
}