:root {
  --sakura-bg: #FDEEF2;
  --sakura-bg-soft: #FFF7F9;
  --sakura-main: #D46A8C;
  --sakura-main-dark: #B85272;
  --sakura-light: #F2AFC3;
  --sakura-deep: #8C3A52;
  --series-gold: #C9A227;
  --text-main: #3A2E33;
  --text-sub: #7A6670;
  --border-soft: #F0D3DC;
  --white: #FFFFFF;
  --shadow-card: 0 2px 12px rgba(140, 58, 82, 0.10);
  --radius-lg: 20px;
  --radius-md: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', sans-serif;
  background: linear-gradient(180deg, var(--sakura-bg) 0%, var(--sakura-bg-soft) 320px, #FAFAFA 100%);
  color: var(--text-main);
  line-height: 1.7;
}

.page-header-image-wrap {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  padding: 16px 16px 0;
}

.page-header-image {
  width: 100%;
  max-width: 720px;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
  margin: 0 auto;
  box-shadow: 0 4px 20px rgba(140, 58, 82, 0.08);
}

.top-container {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}

.top-header {
  text-align: center;
  padding: 20px 16px 32px;
}

.top-header .series-badge {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--series-gold);
  border: 1px solid var(--series-gold);
  border-radius: 999px;
  padding: 3px 14px;
  margin-bottom: 14px;
}

.top-header h1 {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 10px;
}

.top-header p {
  font-size: 14px;
  color: var(--text-sub);
  margin: 0;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

@media (max-width: 640px) {
  .tool-grid { grid-template-columns: 1fr; }
}

.tool-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-decoration: none;
  color: var(--text-main);
  box-shadow: var(--shadow-card);
  transition: transform 0.15s, box-shadow 0.15s;
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(140, 58, 82, 0.16);
}

.tool-card .tool-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.tool-card .tool-phase {
  font-size: 11px;
  color: var(--series-gold);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.tool-card .tool-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.tool-card .tool-desc {
  font-size: 12.5px;
  color: var(--text-sub);
  flex: 1;
  margin-bottom: 14px;
}

.tool-card .tool-cta {
  font-size: 13px;
  font-weight: 700;
  color: var(--sakura-deep);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin: 32px 0 14px;
}

.footer-links a {
  font-size: 12px;
  color: var(--text-sub);
  text-decoration: underline;
}

.top-disclaimer {
  font-size: 11px;
  color: var(--text-sub);
  text-align: center;
  margin-top: 16px;
  line-height: 1.8;
  padding: 0 12px;
}

.site-copyright {
  text-align: center;
  font-size: 11px;
  color: var(--text-sub);
  margin-top: 20px;
  padding-bottom: 4px;
}