.contact-us {
  display: flex;
  justify-content: space-between;
  list-style: none;
  flex-wrap: wrap;
  margin-top: 2rem;
  margin-bottom: -50px;
  position: relative;
  z-index: 4;
}
.contact-us li {
  width: calc(50% - 40px);
  padding: 38px 25px 58px 5px;
  margin: 20px;
  display: flex;
  flex-direction: column;
}
.contact-us li:where(:nth-child(1), :nth-child(2)) {
  border-bottom: 1px solid #dedede;
}
.contact-us li:nth-child(odd) {
  border-right: 1px solid #dedede;
  position: relative;
}
.contact-us li:nth-child(1)::after {
  content: "";
  height: 42px;
  width: 42px;
  background: #ffffff;
  position: absolute;
  bottom: -2px;
  right: -2px;
}
.contact-us li h2 {
  font-weight: 400;
  font-size: 24px;
  line-height: 36px;
  letter-spacing: 0.26px;
  margin-bottom: 6px;
  margin-top: 14px;
}
.contact-us li .sub-title {
  margin-bottom: 32px;
  color: #606b79;
  max-width: 444px;
}
.contact-us li p {
  margin-top: auto;
}
.contact-us li p a {
  color: #02182f;
  text-decoration: none;
}
.contact-us li p a:hover {
  text-decoration: underline;
}
.contact-us li img {
  opacity: 0.9;
}

@media (max-width: 768px) {
  .article h1 {
    font-size: 2.2rem;
  }
  .contact-us {
    margin-bottom: 0;
    position: relative;
    z-index: 2;
    background: white;
    border-radius: 0 0 15px 15px;
  }
  .contact-us li {
    margin: 15px;
    width: calc(50% - 30px);
    padding: 38px 25px 38px 5px;
  }
  .contact-us li:nth-child(odd)::after {
    height: 30px;
    width: 30px;
  }
  .contact-us li h2 {
    font-size: 22px;
    margin-bottom: 12px;
    line-height: 34px;
  }
  .contact-us li .sub-title {
    font-size: 16px;
  }
  .contact-us li img {
    width: 44px;
  }
}
@media (max-width: 600px) {
  .contact-us li {
    width: 100%;
    margin: 0 0 62px;
    padding: 20px;
    align-items: center;
    text-align: center;
  }
  .contact-us li:nth-child(odd) {
    border-right: 0;
  }
  .contact-us li:nth-child(odd)::after {
    display: none;
  }
  .contact-us li:not(:last-child) {
    border-bottom: 0;
  }
  .contact-us li h2 {
    margin-bottom: 4px;
    font-size: 20px;
  }
  .contact-us li .sub-title {
    font-size: 14px;
    margin-bottom: 14px;
    max-width: 233px;
  }
  .contact-us li p {
    font-size: 14px;
  }
}