:root {
  --sakura: #ff9db0;
  --sakura-soft: #ffb5c2;
  --lavender: #c9a5ff;
  --ink: #4a4a4a;
  --sub: #8e8e93;
  --cream: #fff8f0;
  --card: #ffffff;
  --line: #efe6ea;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--sakura); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }

/* Header / nav */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 248, 240, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); }
.brand .dot {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--sakura-soft), var(--lavender));
}
nav.site a { color: var(--sub); margin-left: 18px; font-size: 14px; }
nav.site a:hover { color: var(--sakura); }

/* Hero */
.hero { text-align: center; padding: 64px 20px 40px; }
.hero .badge {
  width: 92px; height: 92px; border-radius: 50%; margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--sakura-soft), var(--lavender));
  display: flex; align-items: center; justify-content: center;
  font-size: 44px; color: #fff;
  box-shadow: 0 12px 30px rgba(201, 165, 255, 0.35);
}
.hero h1 { font-size: 34px; margin: 0 0 12px; }
.hero p.lead { font-size: 17px; color: var(--sub); margin: 0 auto; max-width: 560px; }
.hero .note { font-size: 13px; color: var(--sub); margin-top: 18px; }

/* Feature cards */
.features { padding: 24px 0 56px; }
.grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.feature {
  background: var(--card); border-radius: 18px; padding: 22px;
  box-shadow: 0 4px 18px rgba(0,0,0,0.04);
}
.feature .ico { font-size: 26px; }
.feature h3 { margin: 10px 0 6px; font-size: 17px; }
.feature p { margin: 0; font-size: 14px; color: var(--sub); }

/* Legal / content pages */
.page { background: var(--card); border-radius: 18px; padding: 28px 26px; margin: 28px 0 48px; box-shadow: 0 4px 18px rgba(0,0,0,0.04); }
.page h1 { font-size: 26px; margin: 0 0 6px; }
.page .updated { color: var(--sub); font-size: 13px; margin-bottom: 20px; }
.page h2 { font-size: 18px; margin: 26px 0 8px; color: var(--ink); }
.page p, .page li { font-size: 15px; color: #555; }
.page ul { padding-left: 1.2em; }
.kv { width: 100%; border-collapse: collapse; }
.kv th { text-align: left; vertical-align: top; width: 36%; padding: 8px 10px 8px 0; color: var(--sub); font-weight: 600; }
.kv td { padding: 8px 0; border-bottom: 1px solid var(--line); }

/* Footer */
footer.site { border-top: 1px solid var(--line); padding: 28px 20px 48px; text-align: center; color: var(--sub); font-size: 13px; }
footer.site a { color: var(--sub); margin: 0 10px; }
.section-title { text-align: center; font-size: 22px; margin: 32px 0 4px; }
.section-sub { text-align: center; color: var(--sub); margin: 0 0 24px; font-size: 14px; }