.ctn1 {
  padding: 5vw 0 12.8vw;
  background: url(../img/about/bg13.jpg) no-repeat;
  background-size: cover;
  overflow: hidden;
}
.ctn1 .ctn-list {
  margin-top: 5vw;
}
.ctn1 .ctn-list ul {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.ctn1 .ctn-list ul li {
  width: 24.6%;
  position: relative;
}
.ctn1 .ctn-list ul li img {
  width: 100%;
}
.ctn1 .ctn-list ul li .text {
  position: absolute;
  width: 100%;
  left: 0;
  top: 0;
  padding: 1.5vw 2vw;
  text-align: center;
}
.ctn1 .ctn-list ul li .text h2 {
  letter-spacing: 2px;
  color: #231815;
  font-weight: bold;
}
.ctn1 .ctn-list ul li .text h3 {
  letter-spacing: 1px;
  color: #231815;
  font-weight: bold;
  margin-top: 10px;
}
.ctn1 .ctn-list ul li .text p {
  letter-spacing: 1px;
  color: #231815;
  line-height: 1.8;
  margin-top: 4px;
}
.ctn1 .ctn-list ul li:nth-child(even) {
  margin-top: 6vw;
}
@media screen and (max-width: 1440px) {
  .ctn1 .ctn-list ul li .text {
    padding: 1.5vw 20px;
  }
}
@media screen and (max-width: 1200px) {
  .ctn1 .ctn-list ul li .text h2 {
    font-size: 24px;
  }
  .ctn1 .ctn-list ul li .text p {
    line-height: 1.6;
  }
}
@media screen and (max-width: 1024px) {
  .ctn1 .ctn-list ul li .text h2 {
    font-size: 22px;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    padding: 40px 0;
    background: #050100;
  }
  .ctn1 .ctn-list {
    margin-top: 10px;
  }
  .ctn1 .ctn-list ul li {
    width: 100%;
    margin-top: 20px!important;
  }
  .ctn1 .ctn-list ul li .text {
    padding: 40px 20px;
  }
  .ctn1 .ctn-list ul li .text h2 {
    font-size: 20px;
  }
  .ctn1 .ctn-list ul li .text h3 {
    font-size: 16px;
  }
}