*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: #fff0f6;
  color: #333;
  line-height: 1.8;
  font-size: 16px;
}

header {
  background: linear-gradient(135deg, #ff69b4, #ff1493);
  color: #fff;
  text-align: center;
  padding: 48px 24px 40px;
}

header h1 {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-shadow: 2px 2px 4px rgba(150, 0, 70, 0.4);
  margin-bottom: 8px;
}

header p {
  font-size: 0.95rem;
  opacity: 0.9;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: #d81b60;
  margin: 36px 0 12px;
  padding-left: 12px;
  border-left: 4px solid #ff69b4;
}

p { margin-bottom: 12px; }

ul {
  padding-left: 1.4em;
  margin-bottom: 12px;
}

ul li { margin-bottom: 6px; }

a { color: #d81b60; text-decoration: none; }
a:hover { text-decoration: underline; }

.card {
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 12px rgba(255, 20, 147, 0.08);
}

.nav-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

.nav-links a {
  background: #fff;
  color: #d81b60;
  border: 2px solid #ff69b4;
  border-radius: 24px;
  padding: 10px 24px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: background 0.15s;
}

.nav-links a:hover {
  background: #fff0f6;
  text-decoration: none;
}

footer {
  text-align: center;
  padding: 24px;
  font-size: 0.8rem;
  color: #aaa;
}

.updated {
  font-size: 0.85rem;
  color: #999;
  margin-top: 32px;
}