html { scroll-behavior: smooth; }
  body { font-family: 'Noto Sans JP', sans-serif; }

  .hero-bg {
    background: linear-gradient(165deg, #CBF1F0 0%, #e8faf9 38%, #ffffff 72%, #f5faf9 100%);
    position: relative;
    overflow: hidden;
  }
  .hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 90% 70% at 80% 20%, rgba(20, 184, 166, 0.12) 0%, transparent 55%),
      radial-gradient(ellipse 70% 60% at 10% 90%, rgba(203, 241, 240, 0.9) 0%, transparent 50%);
  }

  .service-card {
    transition: transform 0.3s ease;
  }
  .service-card:hover {
    transform: translateY(-4px);
  }

  .img-placeholder {
    background: linear-gradient(135deg, #e2f4f2 0%, #f1f9f8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }
  .img-placeholder svg {
    opacity: 0.2;
    stroke: #64748b;
  }
  .img-placeholder.hero-ph {
    background: linear-gradient(160deg, #CBF1F0 0%, #dff5f3 45%, #e8faf9 100%);
  }
  .img-placeholder.hero-ph::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 30% 60%, rgba(20, 184, 166, 0.15) 0%, transparent 50%),
      radial-gradient(circle at 70% 30%, rgba(203, 241, 240, 0.5) 0%, transparent 45%);
  }
  .img-placeholder.team-ph {
    background: linear-gradient(135deg, #e8f5f4 0%, #f0faf9 50%, #e2f4f2 100%);
  }
  .img-placeholder.work-ph {
    background: linear-gradient(135deg, #eef7f6 0%, #f5faf9 60%, #e8f2f1 100%);
  }

  .fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .fade-up.visible {
    opacity: 1;
    transform: translateY(0);
  }

  .counter { font-variant-numeric: tabular-nums; }

  #header.nav-scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06), 0 12px 40px rgba(15, 23, 42, 0.08);
  }