.c-about3 .c-list {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
}
.c-about3 .c-list li {
  display: flex;
  flex-wrap: wrap;
  width: 25%;
  padding: 0 0 13.2px; /* 原0 0.1rem 0.2rem */
}
@media (max-width: 991px) {
  .c-about3 .c-list li {
    width: 50%;
  }
}
.c-about3 .c-list li:nth-child(even) {
  flex-direction: column-reverse;
}
.c-about3 .c-list li:nth-child(even) .public-img {
  border-radius: 0 0 10px 10px;
}
.c-about3 .c-list li:nth-child(even) .public-img::after {
  top: 0;
  bottom: auto;
  transform: rotate(0deg);
}
.c-about3 .c-list li:nth-child(even) .c-box {
  border-radius: 10px 10px 0 0;
}
.c-about3 .c-list li .public-img {
  width: 100%;
  height: 184.8px; /* 原2.8rem */
  border-radius: 10px 10px 0 0;
}
@media (max-width: 1580px) {
  .c-about3 .c-list li .public-img {
    height: 204.6px; /* 原3.1rem */
  }
}
.c-about3 .c-list li .public-img::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  z-index: 10;
  width: 100%;
  height: 6.6px; /* 原0.1rem */
  background: url(https://file.dianzhonghe.com/platform/portal/images/about3-arrow.png)
    no-repeat center / cover;
  transform: rotate(180deg);
}
.c-about3 .c-list li .c-box {
  padding: 29.7px 26.4px; /* 原0.45rem 0.4rem */
  width: 100%;
  height: 171.6px; /* 原2.6rem */
  text-align: center;
  border-radius: 0 0 10px 10px;
  background-color: #fafafa;
}
@media (max-width: 1580px) {
  .c-about3 .c-list li .c-box {
    height: 198px; /* 原3rem */
  }
}
@media (max-width: 767px) {
  .c-about3 .c-list li .c-box {
    padding: 19.8px; /* 原0.3rem */
    display: flex;
    align-content: center;
    flex-wrap: wrap;
  }
}
.c-about3 .c-list li .c-box .c-title {
  margin-bottom: 6.6px; /* 原0.1rem */
  color: #999;
}
@media (max-width: 767px) {
  .c-about3 .c-list li .c-box .c-title {
    font-size: 18.48px; /* 原0.28rem */
    width: 100%;
  }
}
.c-about3 .c-list li .c-box .c-text {
  color: #333;
}
@media (max-width: 767px) {
  .c-about3 .c-list li .c-box .c-text {
    font-size: 19.8px; /* 原0.3rem */
    width: 100%;
  }
}