.a1-about-section {
  background: #000000;
  color: #fff;
  font-family: Arial, sans-serif;
}

.a1-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.a1-top-left,
.a1-top-right {
  position: relative;
  overflow: hidden;
}

.a1-top-left {
  background: linear-gradient(90deg, #2f2f2f 0%, #3a3a3a 100%);
  padding: 60px 60px;
  min-height: 320px;
  display: flex;
  align-items: center;
}

.a1-top-left h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 12px;
  color: #fff;
}

.a1-red-line {
  width: 34px;
  height: 3px;
  background: #e10600;
  margin: 0 0 28px;
}

.a1-top-left p {
  font-size: 14px;
  line-height: 1.8;
  color: #f1f1f1;
  margin: 0 0 18px;
  max-width: 100%;
}

.a1-watermark {
  position: absolute;
  left: 25px;
  bottom: -10px;
  font-size: 88px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.a1-top-right {
  /* min-height: 50px; */
  background: #ddd;
}

.a1-top-right img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.a1-bottom {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
}

.a1-bottom-left,
.a1-card {
  position: relative;
  overflow: hidden;
}

.a1-bottom-left {
  background: #4a4a4a;
  padding: 42px 32px;
  min-height: 290px;
}

.a1-bottom-left h4 {
  font-size: 18px;
  line-height: 1.4;
  margin: 0 0 14px;
  color: #fff;
  font-weight: 700;
}

.a1-bottom-left p {
  font-size: 14px;
  line-height: 1.8;
  color: #f0f0f0;
  margin: 0;
}

.a1-card {
  background: #4a4a4a;
  padding: 42px 32px;
  min-height: 290px;
  border-left: 1px solid rgba(255, 255, 255, 0.05);
}

.a1-card-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 28px;
}

.a1-card h4 {
  font-size: 18px;
  line-height: 1.4;
  margin: 0 0 14px;
  color: #fff;
  font-weight: 700;
}

.a1-card p {
  font-size: 14px;
  line-height: 1.8;
  color: #f0f0f0;
  margin: 0;
}

.a1-bottom-watermark {
  position: absolute;
  left: 20px;
  bottom: -8px;
  font-size: 88px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

@media (max-width: 991px) {
  .a1-grid {
    grid-template-columns: 1fr;
  }

  .a1-top-right {
    min-height: 350px;
  }

  .a1-bottom {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .a1-top-left,
  .a1-bottom-left,
  .a1-card {
    padding: 28px 20px;
  }

  .a1-bottom {
    grid-template-columns: 1fr;
  }

  .a1-top-left h2 {
    font-size: 22px;
  }

  .a1-bottom-left h4 {
    font-size: 24px;
  }

  .a1-watermark,
  .a1-bottom-watermark {
    font-size: 52px;
  }

  .a1-top-right {
    min-height: 250px;
  }

  .a1-bottom-left,
  .a1-card {
    min-height: auto;
  }
}