.staff-box {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.staff-box > li {
  width: calc(50% - 20px);
  display: flex;
  justify-content: left;
  border-top: 2px solid #0065b3;
  padding: 20px 0;
  box-sizing: border-box;
  margin: 0 20px 20px 0;
}

.staff-box > li:nth-of-type(2n) {
  margin-right: 0;
}

.staff-box > li .img-box {
  width: 110px;
  padding-right: 20px;
}

.staff-box > li .txt-box {
  width: calc(100% - 110px);
}

.staff-box > li .txt-box .name {
  font-size: 20px;
  color: #0066b3;
  line-height: 22px;
  margin-bottom: 5px; /* 수정된 부분 */
}

.staff-box > li .txt-box .email {
  font-size: 16px;
  color: #999999;
  line-height: 18px;
  margin-bottom: 10px; /* 수정된 부분 */
}

@media screen and (max-width: 768px) {
  .staff-box > li {
    width: 100%;
    margin-right: 0;
  }

  .staff-box > li .img-box {
    margin: 0 auto;
    padding-bottom: 10px;
  }

  .staff-box > li .txt-box .name {
    font-size: 16px;
  }

  .staff-box > li .txt-box .email {
    font-size: 14px;
  }
}

@media screen and (max-width: 440px) {
  .staff-box > li .txt-box .name {
    line-height: 16px;
    margin-bottom: 3px; /* 수정된 부분 */
  }

  .staff-box > li .txt-box .email {
    font-size: 12px;
  }
}