.develop{
  padding: 2rem 10% 2.5rem;
  background-color: #fff;
}
.develop-desc{
  padding: 0 1.5rem;
  font-size: 0.45rem;
  font-weight: 400;
  color: #4D4D4D;
  line-height: 1rem;
  text-align: center;
  margin-top: 0.8rem;
}
.develop-list{
  display: flex;
  align-items: stretch;
  margin-top: calc(55rem / 50);
}
.develop-item{
  position: relative;
  flex: 1;
  box-sizing: border-box;
  height: calc(560rem / 40);
  padding: calc(252rem / 40) 0.8rem 0.8rem;
  border: 1px solid #DADADA;
  transition: 0.3s all;
}
.develop-item:first-child {
  border-right: none;
}
.develop-item:last-child {
  border-left: none;
}
.develop-item:hover {
  background-color: #C0191F;
  border-color: #C0191F;
}
.develop-item:hover .develop-item-content{
  transform: translateY(-3.5rem);
}
.develop-item-content{
  transition: 0.3s all;
}
.develop-item:hover .develop-item-box {
  visibility: hidden;
}
.develop-item:hover .develop-item-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 500;
  color: #FFFFFF;
  line-height: calc(56rem / 40);
}
.develop-item:hover .develop-item-desc {
  color: #fff;
  font-size: 0.45rem;
  color: #FFFFFF;
  line-height: 1.2rem;
}
.develop-item:first-child {
  border-radius: 0.4rem 0px 0px 0.4rem;
}

.develop-item:last-child {
  border-radius: 0px 0.4rem 0.4rem 0px;
}
.develop-item-box{
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: calc(290rem / 40);
}
.develop-item-image{
  width: 100%;
}
.develop-item-title{
  text-align: center;
  font-size: 0.7rem;
  font-weight: 500;
  color: #1A1A1A;
  line-height: 1rem;
}
.develop-item-desc{
  font-size: 0.4rem;
  color: #4D4D4D;
  line-height: 0.8rem;
  margin-top: 0.6rem;
  text-align: justify;
}
.train{
  padding: 2rem 10% 2.5rem;
  background-color: #F6F6F6;
}
.train-container{
  position: relative;
  padding-bottom: 1.5rem;
  padding-top: 0.8rem;
}
.train-swiper{
  overflow: hidden;
  border-radius: 0.4rem;
  overflow: hidden;
}
.train-container .swiper-pagination{
  bottom: 0;
}
.train-container .swiper-pagination-bullet {
  width: 0.5rem;
  height: 0.5rem;
  background: #fff;
  border-radius: 50%;
  transition: 0.3s all;
  margin-right: 0.6rem;
}
.train-container .swiper-pagination-bullet-active{
  width: 0.8rem;
  height: 0.5rem;
  border-radius: initial;
  background-image: url(./../img/about/swiper_icon.png);
  background-repeat: no-repeat;
  background-size: contain; 
  background-color: initial;
}
.train-item{
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: 100%;
  overflow: hidden;
  cursor: pointer;
}
.swiper-slide:nth-child(even) .train-box{
  order: 1;
}
.train-box{
  width: 100%;
  height: 8rem;
}
.train-image{
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.train-content{
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 8rem;
  padding: 0 0.6rem;
  box-sizing: border-box;
  background-color: #fff;
}
.train-content::after {
  position: absolute;
  content: '';
  right: 1.5rem;
  top: 0;
  transform: translateY(-100%);
  width: 0;
  height: 0;
  border-left: 0.35rem solid transparent;
  border-right: 0.35rem solid transparent;
  border-top: 0.35rem solid transparent;
  border-bottom: 0.35rem solid #fff;
}
.swiper-slide:nth-child(even) .train-content::after {
  position: absolute;
  content: '';
  right: 1.5rem;
  top: initial;
  bottom: 0;
  transform: translateY(100%);
  width: 0;
  height: 0;
  border-left: 0.35rem solid transparent;
  border-right: 0.35rem solid transparent;
  border-top: 0.35rem solid #fff;
  border-bottom: 0.35rem solid transparent;
}
.train-title{
  text-align: center;
  font-size: 0.7rem;
  font-weight: 500;
  color: #1A1A1A;
  line-height: 1rem;
}
.train-desc{
  margin-top: 0.6rem;
  text-align: justify;
  font-size: 0.45rem;
  font-weight: 400;
  color: #4D4D4D;
  line-height: 1rem;
}

@media screen and (max-width: 1000px) {
  .develop-desc{
    padding: 0;
  }
  .develop-list{
    flex-direction: column;
  }

  .develop-list .develop-item{
    margin-top: 1rem;
    border: 1px solid #DADADA;
    border-radius: 0.4rem;
  }
  .develop-item:not(:first-child) {
    margin-top: 1rem;
  }

  .swiper-slide:nth-child(even) .train-box{
    order: initial;
  }
  .swiper-slide:nth-child(even) .train-content::after{
    position: absolute;
    content: '';
    right: 1.5rem;
    top: 0;
    transform: translateY(-100%);
    width: 0;
    height: 0;
    border-left: 0.35rem solid transparent;
    border-right: 0.35rem solid transparent;
    border-top: 0.35rem solid transparent;
    border-bottom: 0.35rem solid #fff;
  }

  .train-content{
    justify-content: flex-start;
    padding-top: 1rem;
    box-sizing: border-box;

  }
}

@media screen and (max-width: 500px) {
  .develop {
    padding: 1rem 5%;
  }
  .train {
    padding: 1rem 5% 1.5rem;
  }
  .train-box {
    height: auto;
  }
}