.mv {
  text-align: center;
  background-image: url("../images/student/mv-bg.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}

.mv .inner {
  background-color: rgba(0,0,0,.3);
  padding: 120px 0;
}

.mv .inner p {
  line-height: 1;
  color: #fff;
  font-family: "Roboto Condensed", sans-serif;
}

.mv .inner h1 {
  color: #fff;
  font-size: 32px;
  line-height: 1;
  margin: 15px auto 0;
  font-weight: bold;
}

.sec_01 {
  text-align: center;
  margin: 100px auto;
}

.sec_01 h2 {
  color: #535353;
  font-size: 28px;
  font-weight: bold;
  margin: 0 auto 100px;
    max-width: 1100px;
}

.sec_01 ul {
  max-width: 1000px;
  margin: 0 auto;
}

.sec_01 ul li {
  margin: 100px auto;
}

.sec_01 ul .left_thumb .left {
  float: left;
}

.sec_01 ul .left_thumb .right {
  float: left;
  width: calc(100% - 350px - 100px);
  margin: 0 0 0 50px;
  text-align: left;
}

.sec_01 ul .right_thumb .right {
  float: right;
}

.sec_01 ul .right_thumb .left {
  float: left;
  width: calc(100% - 350px - 100px);
  margin: 0 0 0 50px;
  text-align: left;
}

.sec_01 ul li .sub_title {
  color: #49A89A;
  font-size: 14px;
  font-family: "Roboto Condensed", sans-serif;
  margin: 25px auto 0;
}

.sec_01 ul li h3 {
  font-size: 22px;
  font-weight: bold;
  margin: 15px auto;
}

.sec_01 ul li .text {
  margin: 25px auto;
}

.sec_01 ul li .btn a {
  margin: 0;
}



@media (max-width: 900px) {
    
    .sec_01 {
      width: 95%;
    }

}

@media (max-width: 810px) {

    .sec_01 ul .left_thumb .left,
    .sec_01 ul .left_thumb .right,
    .sec_01 ul .right_thumb .left,
    .sec_01 ul .right_thumb .right {
      float: none;
      width: auto;
      margin: 0 auto;
      max-width: 500px;
    }
    
    .sec_01 ul li {
      margin: 50px auto;
    }
    
    .sec_01 ul li .btn a {
      margin: 0 auto;
    }

}

@media (max-width: 580px) {

    .mv .inner {
      padding: 50px 0;
    }

    .mv .inner h1 {
      font-size: 22px;
    }
    
}

@media (max-width: 500px) {

    .sec_01 h2 {
      font-size: 18px;
      margin: 0 auto;
    }
    
}