body {
      font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
      color: #1f3a44;
      background-color: #ffffff;
    }
    .brand-bg-light {
      background-color: #f5faff;
    }
    .brand-bg-deep {
      background: linear-gradient(145deg, #1e3c4f, #16323f);
      color: white;
    }
    .brand-gold {
      color: #d98c4a;
    }
    .section-title {
      font-size: 2.4rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      position: relative;
      display: inline-block;
      margin-bottom: 2rem;
    }
    .section-title:after {
      content: '';
      display: block;
      width: 80px;
      height: 4px;
      background: #d98c4a;
      border-radius: 4px;
      margin-top: 12px;
    }
    .stat-number {
      font-size: 3.2rem;
      font-weight: 800;
      line-height: 1;
      color: #1e3c4f;
    }
    .stat-label {
      font-size: 1rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: #4f6f7e;
    }
    .advantage-card, .patent-card, .product-card {
      border: none;
      border-radius: 1.5rem;
      background: white;
      box-shadow: 0 12px 30px rgba(0, 30, 40, 0.06);
      transition: all 0.2s;
      height: 100%;
    }
    .advantage-card:hover, .patent-card:hover, .product-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 35px rgba(43, 92, 111, 0.12);
    }
    .icon-circle {
      width: 70px;
      height: 70px;
      background-color: #e7f0f5;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2.2rem;
      color: #2b5c6f;
      margin-bottom: 1.5rem;
    }
    .scene-icon {
      font-size: 2.5rem;
      color: #2b5c6f;
      background: #e1edf4;
      width: 90px;
      height: 90px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 1rem;
    }
    .footer-link {
      color: #bfd5e0;
      text-decoration: none;
    }
    .footer-link:hover {
      color: white;
    }
    .navbar-brand {
      font-weight: 700;
      font-size: 1.8rem;
      color: #1e3c4f !important;
    }
    .btn-outline-brand {
      border: 2px solid #d98c4a;
      color: #d98c4a;
      border-radius: 40px;
      padding: 0.5rem 2rem;
      font-weight: 600;
    }
    .btn-outline-brand:hover {
      background-color: #d98c4a;
      color: white;
    }