body {
  background-color: #FFFFFF;
}


/* banner-start */
#about-banner {
  margin-top: -100px;
}

/* 添加渐变背景 */
.bannercontainer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 10%);
  z-index: 1;
}

.bannercontainer {
  position: relative;
  z-index: 2;
}

/* banner-end */

/* who we are-start */
#who {
  padding: 80px 0;
}

.whocontainer {
  width: 100%;
  margin: 0 auto;
}

.whocontainer .tit {
  margin: 0 auto;
  display: flex;
  /* width: 90%; */
  justify-content: center;
  column-gap: 13em;
}

.whocontainer .tit h3 {
  font-size: 36px;
  color: #000;
  line-height: 50px;
  position: relative;
  height: 80px;
  margin-top: 0;
}

.whocontainer .tit h3::after {
  content: '';
  width: 90%;
  height: 2px;
  background-color: #000;
  position: absolute;
  bottom: 0%;
  left: 0%;
}

.whocontainer .tit p {
  font-size: 22px;
  color: #000;
  line-height: 40px;
  font-weight: 400;
  width: 48%;
}

.whocontainer .who-row {
  margin-top: 50px;
  display: flex;
}

.whocontainer .who-row .txt {
  padding: 10px 30px 0px 30px;
}

.whocontainer .who-row .txt h4 {
  font-size: 30px;
  color: rgba(0, 0, 0, 0.8);
  line-height: 35px;
  margin-bottom: 5px;
}

.whocontainer .who-row .txt p {
  font-size: 15px;
  color: rgba(0, 0, 0, 0.8);
  line-height: 35px;
  width: 100%;
  margin-top: 0px;
}

.whocontainer .who-row .pic-txt {
  position: relative;

  width: 100%;
  height: 230px;
  background-color: #1d523e;
}
.whocontainer .who-row .pimg{
  position: absolute;
  bottom: 0%;
  right: 0%;
}
.whocontainer .who-row .pimg img{
  height: 230px;
  width: auto;
}

.whocontainer .who-row .pic-txt .cont {
  position: absolute;
  top: 15%;
  left: 8%;
}

.whocontainer .who-row .pic-txt .cont p {
  font-size: 26px;
  color: #FFFFFF;
  line-height: 40px;
}

.who-row .item {
  position: relative;
  cursor: pointer;
  transition: all 0.5s ease;

  width: 34%;
}

.image-container {
  width: 100%;
  height: 500px;
  background-position: center;
  background-size: cover;
  /* 使背景图片覆盖整个元素 */
  overflow: hidden;
  background-repeat: no-repeat;
  transition: all 0.5s ease;
}

.image-container1 {
  background-image: url(../pics/aboutus-pic.jpg);
}

.image-container2 {
  background-image: url(../pics/aboutus-pic2.jpg);
}

.image-container3 {
  background-image: url(../pics/aboutus-pic3.jpg);
}

.who-row .item.expanded{
  width: 50%;
}

.who-row .txt {
  display: none;
}

.who-row .item.expanded .txt {
  display: block;
}

.pic-txt {
  display: block;
  transition: all 0.5s ease;
}

.item.expanded .pic-txt {
  display: none;
}


/* who we are-end */

/* our commitments-start */
#commitments {
  padding: 50px 0;
  display: flex;
  justify-content: flex-end;
}

.commitcontainer {
  width: 90%;
}

.commitcontainer h3 {
  font-size: 36px;
  color: #000;
  line-height: 50px;
  position: relative;
  height: 80px;
  margin-top: 0;
  margin-left: 10%;
}

.commitcontainer h3::after {
  content: '';
  width: 10%;
  height: 2px;
  background-color: #000;
  position: absolute;
  bottom: 0%;
  left: 0%;
}

.commitswiper {
  margin-top: 50px;
}

.commitswiper .swiper-wrapper {
  padding: 50px 0;
}

.commitswiper .swiper-wrapper .swiper-slide {
  display: flex;
  width: 70%;
  transition: transform .5s .1s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
}

.commitswiper .swiper-wrapper .swiper-slide:nth-child(odd) {
  transform: translateY(-30px);
}

.commitswiper .swiper-wrapper .swiper-slide:nth-child(even) {
  transform: translateY(30px);
}

.commitswiper .swiper-wrapper .swiper-slide .con {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 0 0 70px;
}

.commitswiper .swiper-wrapper .swiper-slide .con h4 {
  font-size: 26px;
  color: rgba(0, 0, 0, 0.8);
  line-height: 34px;
}

.commitcontainer .commit-arrow {
  display: flex;
  justify-content: flex-start;
  column-gap: 1.5em;
  /* margin-top: 3%; */
  margin-left: 5%;
}

.commitcontainer .commitswiper-button-prev {
  background: url(../pics/child-arrow-left.png) no-repeat;
  width: 52px;
  height: 52px;
  background-size: cover;
  background-position: center;
}

.commitcontainer .commitswiper-button-next {
  background: url(../pics/child-arrow-right.png) no-repeat;
  width: 52px;
  height: 52px;
  background-size: cover;
  background-position: center;
}

@media screen and (max-width:1568px)  and (min-width:1200px){
	.whocontainer .who-row .txt p {
    line-height: 30px;
	}
	
	
}

/* 手機端 */
@media screen and (max-width:1100px){
  .whocontainer .who-row .txt{
    padding: 10px 15px 0 15px;
  }
  .whocontainer .who-row .txt h4{
    font-size: 27px;
    line-height: 35px;
    margin-bottom: 5px;
    margin-top: 0;
  }
  .whocontainer .who-row .txt p{
    font-size: 15px;
    line-height: 30px;
    margin-top: 0;
  }
}
@media screen and (max-width:992px) {
  #about-banner {
    margin-top: 0;
  }
  .whocontainer .who-row .txt h4{
    font-size: 24px;
  }
  .whocontainer .who-row .txt p{
    font-size: 13px;
    line-height: 28px;
    margin-top: 0;
  }
  .commitswiper .swiper-wrapper .swiper-slide .con {
    padding: 0 0 0 20px;
  }
  
  .commitswiper .swiper-wrapper .swiper-slide .con h4 {
    font-size: 20px;
  }

}

@media screen and (max-width:768px) {

  /* banner-start */
  #about-banner {
    margin-top: 0;
  }

  /* banner-end */

  /* who we are-start */
  .who-row .item{
    width: 100%;
  }
  .who-row .item.expanded{
    width: 100%;
  }
  .whocontainer  .who-row .pic-txt{
    height: 200px;
  }
  .whocontainer .who-row .pic-txt .pimg img{
    height: 200px;
  }
  #who {
    padding: 30px 0;
  }

  .whocontainer {
    padding: 0 15px;
  }

  .whocontainer .tit {
    flex-direction: column;
  }

  .whocontainer .tit h3 {
    font-size: 30px;
    line-height: 45px;
    height: 70px;
  }

  .whocontainer .tit h3::after {
    width: 20%;
  }

  .whocontainer .tit p {
    width: 100%;
    font-size: 15px;
    line-height: 30px;
    margin-top: 10px;
    width: 100%;
  }

  .whocontainer .who-row {
    margin-top: 20px;
    flex-direction: column;
    row-gap: 1em;
  }

  .whocontainer .who-row .txt {
    padding: 0;
  }

  .whocontainer .who-row .txt h4 {
    font-size: 26px;
    margin-top: 15px;
    margin-bottom: 5px;
  }

  .whocontainer .who-row .txt p {
    line-height: 30px;
    margin-top: 0;
    width: 100%;
  }

  .whocontainer .who-row .pic-txt .cont {
    top: 20%;
  }

  .whocontainer .who-row .pic-txt .cont p {
    font-size: 18px;
    line-height: 26px;
  }

  .image-container{
    height: 300px;
  }

  /* who we are-end */

  /* our commitments-start */
  #commitments {
    padding: 30px 0;
  }

  .commitcontainer {
    width: 100%;
    padding: 0 15px;
  }

  .commitcontainer h3 {
    margin-left: 0;
    font-size: 30px;
    line-height: 45px;
    height: 70px;
  }

  .commitcontainer h3::after {
    width: 20%;
  }

  .commitswiper {
    margin-top: 0;
  }

  .commitswiper .swiper-wrapper {
    padding: 30px 0;
  }

  .commitswiper .swiper-wrapper .swiper-slide {
    width: 100%;
    flex-direction: column;
  }

  .commitswiper .swiper-wrapper .swiper-slide .con {
    padding: 0;
  }

  .commitswiper .swiper-wrapper .swiper-slide .con h4 {
    font-size: 20px;
    line-height: 30px;
    text-align: center;
  }

  .commitswiper .swiper-slide:nth-child(odd),
  .commitswiper .swiper-slide:nth-child(even) {
    transform: none !important;
  }

  .commitswiper .swiper-slide:nth-child(odd):not(.swiper-slide-active) {
    transform: translateY(-30px) !important;
  }

  .commitswiper .swiper-slide:nth-child(even):not(.swiper-slide-active) {
    transform: translateY(30px) !important;
  }

  /* our commitments-end */


}