/* ################# section : about_introduce ################# */
.about_introduce {
  padding-top: 60px;
  text-align: center;
}
.about_introduce-inner {
  width: 1300px;
  margin: auto;
}
.introduce-title {
  position: relative;
  margin-bottom: 60px;
  height: 200px;
  overflow: hidden;
}
.introduce-title h3 {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font: inherit;
  font-size: 1.5em;
  font-weight: 700;
}
.introduce-txt span {
  font: inherit;
  font-size: 1.5em;
  color: #97BC62;
  font-weight: 700;
}
.introduce-txt p {
  font: inherit;
  color: #666;
  margin-top: 30px;
}

/* ################# section : vision ################# */

.vision {}
.vision-inner {
  width: 1300px;
  margin: auto;
}
.vision-content{
  display: flex;
  justify-content: center;
  text-align: center;
}
.vision-item {
  width: 30%;
  position: relative;
  margin-right: 30px;
  padding: 40px 20px;
  padding-bottom: 60px;
  border-top: 2px solid #97BC62;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}
.vision-item:nth-of-type(2){
  border-top: 2px solid #495c30;
}
.vision-item:last-of-type{
  margin-right: 0;
}
.vision-item h2 {
  position: absolute;
  width: 150px;
  line-height: 2em;
  top: -20px;
  left: 50%;
  background-color: #97BC62;
  color: #fff;
  transform: translateX(-50%);
  font: inherit;
  font-size: 1.2em;
}
.vision-item:nth-last-of-type(2) h2 {
  background-color: #495c30;
}
.vision-item h3 {
  border-bottom: 2px solid #eee;
  height: 40%;
  display: flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 1.2em;
  font-weight: 700;
}
.vision-item p {
  font: inherit;
  font-size: 0.9em;
  margin: 30px 0;
}

/* ################# section : history ################# */

.history {
  position: relative;
  overflow: hidden;
}
.history-inner {
  width: 768px;
  margin: auto;
}
.history-headline {
  background: url(../images/about_history.jpg) no-repeat;
  background-size: cover;
  background-position: center;
  padding: 100px 0;
  color: #fff;
  display: flex;
  justify-content: center;
  margin-bottom: 120px;
}
.history-title {
  width: 768px;
  display: flex;
  padding: 50px 0 0 0;
}
.history-title>.history-txt {
  margin-top: -50px;
}
.history-title>.history-icon {
  position: relative;
}
.history-title>.history-icon:after {
  content: '';
  position: absolute;
  height: 5000px;
  width: 3px;
  background-color: #97BC62;
  opacity: 0.5;
  top: 20px;;
  left: 35%;
}
.history-title span {
  font: inherit;
  font-size: 1.2em;
  font-weight: 400;
}
.history-title h3 {
  font: inherit;
  font-size: 2.5em;
  font-weight: 700;
  margin-top: 20px;
}
.history-title p {
  font: inherit;
  font-weight: 700;
}
.history-item {
  /* width: 100%; */
  padding: 50px 0px;
  display: flex;
}
.history-icon {
  width: 10%;
}
.history-txt {
  width: 90%;
  margin-top: 7px;
}
.history-item h3 {
  font: inherit;
  font-size: 1.5em;
  font-weight: 700;
}
.history-item p {
  font: inherit;
  line-height: 3em;
  color: #666;
  margin-top: 60px;
  margin-left: 30px;
}

@media (max-width: 768px) {
  .about_introduce-inner {
    width: 100%;
  }
  .introduce-title h3 {
    font-size: 1.4em;
  }
  .introduce-txt span {
    font-size: 1.2em;
  }
  .introduce-txt p {
    font-size: 0.9em;
  }

  .vision-inner {
    width: 100%;
  }
  .vision-content {
    display: block;
   }
  .vision-item {
    width: 100%;
    margin-top: 50px;
  }
  .history-inner {
    width: 100%;
    padding: 0 20px;
  }
  .history-icon,
  .history-title>.history-icon:after {
    display: none;
  }
  .history-headline {
    padding-left: 30px;
    margin-bottom: 60px;
    text-align: center;
  }
  .history-txt span {
    font-size: 1em;
  }
  .history-txt h3 {
    font-size: 2em;
  }
  .history-txt p {
    font-size: 1em;
  }
  .history-item {
    /* width: 100%; */
    padding: 30px 0px;
  }
  .history-item h3 {
    font-size: 1.5em;
  }
  .history-item p {
    font-size: 0.9em;
    line-height: 1.6em;
    margin-top: 30px;
  }
}