.differentials-section {
    position: relative;
    overflow: hidden;
    padding: 120px 0;
    background:
      linear-gradient(135deg, #0B1628 0%, #10243E 100%);
  }
  
  .differentials-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.4;
    background:
      radial-gradient(circle at top left,
        rgba(56, 189, 248, 0.18),
        transparent 28%),
      radial-gradient(circle at bottom right,
        rgba(56, 189, 248, 0.12),
        transparent 24%);
  }
  
  .differentials__header {
    position: relative;
    z-index: 2;
    max-width: 760px;
    margin: 0 auto 54px;
    text-align: center;
  }
  
  .differentials__header .eyebrow {
    color: #38BDF8;
  }
  
  .differentials__header h2 {
    margin-bottom: 18px;
    color: #FFFFFF;
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.08;
  }
  
  .differentials__header p {
    color: rgba(255,255,255,0.72);
    font-size: 1.05rem;
  }
  
  .differentials__grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }
  
  .differential-card {
    position: relative;
    overflow: hidden;
    padding: 30px;
    min-height: 250px;
    border-radius: 30px;
    background:
      linear-gradient(
        180deg,
        rgba(255,255,255,0.08),
        rgba(255,255,255,0.03)
      );
  
    border: 1px solid rgba(255,255,255,0.08);
  
    backdrop-filter: blur(18px);
  
    transition:
      transform 0.35s ease,
      border-color 0.35s ease,
      box-shadow 0.35s ease;
  }
  
  .differential-card::before {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 4px;
    background: #38BDF8;
  
    transform: scaleX(0);
    transform-origin: left;
  
    transition: 0.35s ease;
  }
  
  .differential-card:hover {
    transform: translateY(-10px);
  
    border-color: rgba(56,189,248,0.28);
  
    box-shadow:
      0 24px 70px rgba(0,0,0,0.28);
  }
  
  .differential-card:hover::before {
    transform: scaleX(1);
  }
  
  .differential-card__icon {
    width: 62px;
    height: 62px;
  
    margin-bottom: 24px;
  
    display: flex;
    align-items: center;
    justify-content: center;
  
    border-radius: 20px;
  
    background:
      rgba(56,189,248,0.12);
  
    border:
      1px solid rgba(56,189,248,0.16);
  }
  
  .differential-card__icon img {
    width: 62px;
    height: 62px;
  
    object-fit: contain;
  }
  
  .differential-card h3 {
    margin-bottom: 12px;
  
    color: #FFFFFF;
  
    font-size: 1.15rem;
  
    line-height: 1.2;
  }
  
  .differential-card p {
    color: rgba(255,255,255,0.68);
  
    font-size: 0.95rem;
  
    line-height: 1.6;
  }
  
  .differential-card {
    opacity: 0;
    transform: translateY(24px);
  }
  
  .differential-card.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  @media (max-width: 1100px) {
    .differentials__grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 640px) {
    .differentials-section {
      padding: 76px 0;
    }
  
    .differentials__header {
      text-align: left;
      margin-bottom: 36px;
    }
  
    .differentials__grid {
      grid-template-columns: 1fr;
    }
  
    .differential-card {
      min-height: auto;
      padding: 26px;
      border-radius: 26px;
    }
  }