#content-sec4 {
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .section {
    position: relative;
    width: 100%;
    overflow: hidden;
  }

  .section-hero {
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 1;
  }

  .section-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .section-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(255, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    pointer-events: none;
  }

  .hero-logo {
    width: 300px;
  }

  .hero-title {
    color: white;
    font-size: clamp(2rem, 2.5vw, 3rem);
    margin-top: 10px;
  }

  .section-text {
    position: sticky;
    top: 0;
    height: 40vh;
    background: white;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
  }

  .section-text p {
    color: black;
    font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
    line-height: clamp(1, 0.5vw + 0.9, 1.3);
    padding: 20px;
    max-width: 900px;
    text-align: center;
  }

  .section-overlap {
    position: sticky;
    top: 0;
    height: 100vh;
  }

  #sec2 { z-index: 20; }
  #sec3 { z-index: 30; }
  #sec4 { z-index: 40; }

  .section-bg-wrapper {
    position: absolute;
    inset: 0;
    z-index: 1;
  }

  .section-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  .section-filter {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2;
  }

  .section-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    width: 90%;
    max-width: 1200px;
    z-index: 3;
    transition: transform 0.1s ease-out, opacity 0.1s ease-out;
  }

  .section-content ul {
    font-size: clamp(1.5rem, 2vw, 2rem);
    line-height: clamp(1.4, 1vw + 1.1, 1.8);
    list-style: none;
    padding: 0;
    margin: 0 auto;
    text-align: center;
    max-width: 1200px;
  }

  .section-content ul li {
    margin: 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: left;
  }

  .section-content ul li span {
    font-size: clamp(2rem, 3vw, 3rem);
    margin-right: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
  }