.sub_mv {
  align-items: center;
  background-image: url(../img/message/sub_mv_img_message.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  display: flex;
  height: 250px;
  justify-content: center;
}

.sub_mv_title_sub {
  color: #595757;
  font-family: 'Calibri',sans-serif;
  font-size: 16px;
  font-weight: normal;
  letter-spacing: .1em;
  line-height: 1;
  text-align: right;
}

.sub_mv_title_main {
  color: #595757;
  font-family: 'Calibri',sans-serif;
  font-size: 40px;
  font-weight: bold;
  line-height: 1;
  text-align: left;
}

@media screen and (max-width: 600px) {
  .sub_mv {
    height: 150px;
  }

  .sub_mv_title_sub {
    font-size: 14px;
  }

  .sub_mv_title_main {
    font-size: 30px;
  }
}