:root {
  --bg: #ffffff;
  --surface: #f7fafc;
  --text-primary: #1f2933;
  --text-secondary: #6b7280;
  --accent-blue: #bee3f8;
  --accent-blue-strong: #7bc4e8;
  --accent-green: #c8e6d0;
  --accent-green-strong: #7fcba4;
  --warn: #f6c17c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI",
    "Noto Sans JP", sans-serif;
  color: var(--text-primary);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  background: linear-gradient(180deg, #fff 0%, #e8f4fb 60%, var(--accent-blue) 100%);
  padding: 80px 0 60px;
  text-align: center;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
}

.brand-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 8px 32px rgba(123, 196, 232, 0.3);
}

.brand h1 {
  margin: 16px 0 4px;
  font-size: 36px;
  font-weight: 700;
}

.subtitle {
  margin: 0;
  color: var(--text-secondary);
  font-size: 16px;
}

.lead {
  margin: 32px 0 24px;
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-primary);
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: white;
  border: 1px solid var(--accent-blue);
  font-size: 13px;
  color: var(--text-primary);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding-top: 64px;
  padding-bottom: 64px;
}

.feature {
  background: var(--surface);
  border: 1px solid rgba(190, 227, 248, 0.6);
  border-radius: 20px;
  padding: 24px;
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 8px;
}

.feature h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.feature p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.pledge {
  padding-bottom: 64px;
}

.pledge h2 {
  font-size: 22px;
  margin: 0 0 12px;
}

.pledge ul {
  padding-left: 20px;
  color: var(--text-primary);
}

.pledge li {
  margin-bottom: 6px;
}

footer {
  background: var(--surface);
  padding: 32px 0;
  margin-top: 32px;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

footer a {
  color: var(--accent-blue-strong);
  text-decoration: none;
  font-size: 14px;
}

footer a:hover { text-decoration: underline; }

.copy {
  text-align: center;
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 12px;
}

article.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px;
  line-height: 1.8;
}

article.legal h1 {
  font-size: 28px;
  margin-bottom: 24px;
}

article.legal h2 {
  font-size: 18px;
  margin-top: 32px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

article.legal p, article.legal li {
  color: var(--text-primary);
}

article.legal time {
  display: block;
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 32px;
}