.d-flex {
  display: flex;
  justify-content: space-between;
  text-align: center;
}

.d-flex .d-flex-left {
  width: 48%;
  margin: 30px 0 0;
}

@media screen and (max-width: 768px) {
  .d-flex .d-flex-left {
    width: auto;
  }
}

.d-flex .d-flex-right {
  width: 48%;
  margin: 30px 0 0;
  text-align: left;
}

@media screen and (max-width: 768px) {
  .d-flex .d-flex-right {
    width: auto;
  }
}

@media screen and (max-width: 768px) {
  .d-flex {
    flex-direction: column;
  }
}

.art-reference-block-text span {
  font-weight: bold;
}

@media screen and (max-width: 768px) {
  .art-comment {
    padding-top: 30px;
  }
}

.art-comment-tag--living {
  background-color: #007FC2;
}

.art-comment-inner {
  display: block;
}

.art-comment-text {
  width: auto;
}

.art-comment-prof {
  display: flex;
  width: auto;
  padding: 0;
  margin: 30px 0 0;
}

@media screen and (max-width: 768px) {
  .art-comment-prof {
    display: block;
  }
}

.art-comment-prof-name {
  margin-top: -0.5em;
}

@media screen and (max-width: 768px) {
  .art-comment-prof-name {
    margin-top: 15px;
  }
}

.art-comment-prof-name span {
  letter-spacing: -0.02em;
}

.art-comment-prof-img {
  width: 20%;
  margin-right: 20px;
}

@media screen and (max-width: 768px) {
  .art-comment-prof-img {
    width: auto;
    margin-right: 0;
  }
}

.art-comment-prof-img img {
  width: 70%;
  padding: 0;
}

.art-comment-prof-txt {
  width: 70%;
}

@media screen and (max-width: 768px) {
  .art-comment-prof-txt {
    width: auto;
  }
}

.art-reference-block-image img {
  width: 100%;
}