/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 32px 0 0;
  padding: 0 4px;
}
.stat-item {
  text-align: center;
  background: var(--ok-light);
  border: 1px solid #b8deca;
  border-radius: var(--r);
  padding: 18px 8px;
}
.stat-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--ok);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-unit {
  font-size: 1rem;
  font-weight: 700;
}
.stat-label {
  font-size: 0.72rem;
  color: var(--k60);
  font-weight: 500;
}

/* Feature cards */
.feature-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.feature-card {
  border: 1px solid var(--k10);
  border-radius: var(--r);
  padding: 22px 18px;
}
.feature-card--primary {
  border-color: #2d7a4f;
  background: var(--ok-light);
}
.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
  line-height: 1;
}
.feature-title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--k80);
}
.feature-card--primary .feature-title {
  color: #1f5c3a;
}
.feature-text {
  font-size: 0.78rem;
  color: var(--k60);
  line-height: 1.9;
}
.feature-card--primary .feature-text {
  color: #3a6b52;
}
/* 3枚目カードをフル幅に */
.feature-card:nth-child(3) {
  grid-column: 1 / -1;
}

/* Use grid */
.use-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.use-item {
  border: 1px solid var(--k10);
  border-radius: var(--r);
  padding: 18px 14px;
  background: #fafafa;
}
.use-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.use-name {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--k80);
}
.use-desc {
  font-size: 0.76rem;
  color: var(--k60);
  line-height: 1.75;
}

@media (max-width: 600px) {
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-num {
    font-size: 1.5rem;
  }
  .feature-cards {
    grid-template-columns: 1fr;
  }
  .feature-card:nth-child(3) {
    grid-column: auto;
  }
  .use-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 400px) {
  .use-grid {
    grid-template-columns: 1fr;
  }
}