.about-box{
  margin-top: 67px;
  padding-top: 90px;
  padding-bottom: 120px;
}
.main-title-box{
  text-align: center;
  font-size: 0;
}
.main-title-icon{
  display: inline-block;
  vertical-align: bottom;
}
.main-title{
  font-size: 18px;
  letter-spacing: 5px;
  line-height: 1.6;
  display: inline-block;
  vertical-align: bottom;
  width: 56px;
  padding-left: 20px;
}
.main-title-icon2{
  display: inline-block;
  vertical-align: bottom;
  margin-bottom: 8px;
}
.main-title-en{
  font-size: 16px;
  letter-spacing: 2px;
  display: inline-block;
  vertical-align: bottom;
  margin-left: 10px;
}
.about-list-box{
  width: 1200px;
  max-width: 100%;
  display: block;
  margin: 0 auto;
  padding-top: 50px;
}
.about-list{
  direction: rtl;
  width: 100%;
  font-size: 0;
}
.about-list-box .about-list:nth-child(even){
  direction: ltr;
  margin: 60px 0;
}

.about-list-info-box,
.about-list-info-img{
  width: 50%;
  display: inline-block;
  vertical-align: middle;
}
#privacy .about-list-info-box,
#privacy .about-list-info-img{
  width: 100%;
}

.about-list-info-box{
  direction: ltr;
  padding-left: 30px;
  box-sizing: border-box;
}
.about-list-title{
  width: 160px;
  height: 50px;
  line-height: 50px;
  background-color: #000;
  color: #FFF;
  font-size: 20px;
  letter-spacing: 2px;
  text-align: center;
}
.about-list-info-p-box{
  font-size: 16px;
  letter-spacing: 2px;
  margin-top: 30px;
}
.about-list-info-p{
  padding-bottom: 30px;
  line-height: 2.5;
}
.about-list-info-p-box .about-list-info-p:last-child{
  padding-bottom: 0;
}
.about-list-info-class-p{
  font-size: 16px;
  line-height: 2;
  letter-spacing: 2px;
}
.about-list-info-class-box{
  margin-top: 10px;
}
.about-list-info-class-title{
  font-size: 20px;
  letter-spacing: 2px;
  color: #28572d;
  display: block;
  padding: 10px 0;
  font-weight: bold;
}
.about-list-info-img2-list-box{
  width: 80%;
  display: block;
  margin: 0 auto;
}
.about-certification{
  text-align: center; 
  margin-top: 40px;
}
.about-certification .about-list-title{
  margin: 0 auto;
}
.about-certification-img-box{
  width: 750px;
  max-width: 100%;
  display: block;
  position: relative;
  margin: 80px auto;
}
.about-certification-img{
  width: 400px;
  max-width: 100%;
  display: block;
  position: relative;
}
.about-certification-img-box .about-certification-img:nth-child(2){
  position: absolute;
  right: 0;
  z-index: 1;
  bottom: -25%;
}