.about {
  padding-bottom: 60px;
  background-color: #f9f9f9;
}

.about-us-bd {
  padding-top: 40px;
  width: 1000px;
  margin: 0 auto;
  /* display: flex;
  justify-content: space-between;
  align-items: flex-start; */
  /* height: 900px; */
  /* background: linear-gradient(rgba(255, 255, 255, 0.5), rgba(rgba(255, 255, 255, 0.5))),  url('../images/word.png') no-repeat top center; */
  position: relative;
  z-index: 1;
}

.about-us-bd::after {
  content: "";
  background: #f9f9f9 url(../images/word.png) no-repeat top center;
  opacity: 1;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  position: absolute;
  z-index: -1;   
}

.about-us-bd h2 {
  margin: 20px 0 40px;
  width: 60%;
  font-size: 33px;
  color: #333;
  line-height: 1.2;
}

.about-us-bd p {
  margin-bottom: 30px;
  width: 60%;
  font-size: 14px;
  line-height: 1.6;
  text-align: justify;
  color: #666;
  text-indent: 28px;
}

.about-us-bd .about-year {
  position: absolute;
  left: 62%;
  bottom: 60px;
  width: 220px;
  font-size: 120px;
  color: #4CAF50;
}

.about-us-bd .about-year-text {
  position: absolute;
  left: 82%;
  bottom: 40px;
  width: 220px;
  font-size: 25px;
  color: #374486;
}

.about-us-factory {
  width: 1000px;
  margin: 0 auto;
  /* height: 400px; */
  overflow: hidden;
}

.about-us-factory img {
  width: 100%;
}

.about-us-img {
  padding-top: 40px;
  /* padding-right: 200px; */
  width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
}

.about-us-img div {
  flex:1;
}

.about-us-img div img {
  width: 100%;
}


@media (max-width: 750px) {
  .about-us-bd::after {
    width: var(--main-width);
  }
}