.pro-content ul {
  margin-left: -30px;
  margin-right: -30px;
}
.pro-content ul li {
  float: left;
  width: calc(33.33% - 60px);
  margin: 0 30px;
  margin-bottom: 60px;
}
.pro-content ul li .img-box {
  width: 100%;
  position: relative;
  padding-bottom: 65%;
  overflow: hidden;
}
.pro-content ul li .img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  transition: all 0.5s;
}
.pro-content ul li .info-box {
  padding: 40px;
  background-color: #f5f5f5;
}
.pro-content ul li .info-box h3 {
  font-size: 24px;
  line-height: 1;
  color: #3e3a39;
  margin-bottom: 20px;
  transition: all 0.3s;
}
.pro-content ul li .info-box p {
  font-size: 16px;
  line-height: 24px;
  color: #333;
  height: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  transition: all 0.3s;
}
.pro-content ul li:hover .info-box {
  background-color: #fff3f3;
}
.pro-content ul li:hover .info-box h3,
.pro-content ul li:hover .info-box p {
  color: #333;
}
.pro-content ul li:hover .img-box img {
  transform: scale(1.1);
}
.list-more {
  display: none;
}
@media (max-width: 1440px) {
  .pro-content ul li .info-box h3 {
    font-size: 20px;
    margin-bottom: 15px;
  }
}
@media (max-width: 1080px) {
  .pro-content ul {
    margin: 0;
  }
  .pro-content ul li {
    width: calc(33.33% - 30px);
    margin: 0 15px;
    margin-bottom: 40px;
  }
  .pro-content ul li .info-box {
    padding: 30px;
  }
  .pro-content ul li .info-box h3 {
    font-size: 18px;
  }
  .pro-content ul li .info-box p {
    font-size: 14px;
    line-height: 22px;
    height: 66px;
  }
  .list-more {
    display: block;
  }
}
@media (max-width: 991px) {
  .pro-content ul li {
    width: calc(50% - 30px);
  }
}
@media (max-width: 768px) {
  .pro-content ul li .info-box {
    padding: 20px;
  }
  .pro-content ul li .info-box h3 {
    font-size: 16px;
    margin-bottom: 10px;
  }
  .pro-content ul li .info-box p {
    font-size: 12px;
    line-height: 20px;
    height: 40px;
  }
}
@media (max-width: 550px) {
  .pro-content ul li {
    width: 100%;
    margin: 0;
    margin-bottom: 30px;
  }
  .pro-content ul li:last-child {
    margin-bottom: 0;
  }
}