.main {
  padding-top: 60px;
  padding-bottom: 100px
}

.project-list ul {
  display: flex;
  flex-wrap: wrap
}

.project-list ul li {
  width: 25%;
  padding: 20px 26px
}

.project-list ul li>a {
  position: relative;
  overflow: hidden;
  display: block
}

.project-list ul li img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1.2;
  object-fit: cover;
}

.project-list ul li .txt {
  /*position: absolute;*/
  left: 15px;
  right: 15px;
  bottom: 20px;
  z-index: 105;
  background: rgba(255, 255, 255, .9);
  padding: 10px 0 10px 0;
  transition: opacity .2s, transform .35s;
  display: flex;
  justify-content: center;
}

.project-list ul li .txt h6 {
  font-size: 18px;
  color: var(--title-text-color);
  line-height: 50px;
  height: 50px;
  overflow: hidden;
  font-weight: 500;
  text-align: center;
}

.project-list ul li:hover .txt {
  background: var(--color-primary) 
}

.project-list ul li:hover .txt h6 {
  color: #fff
}

.main .back a{
  padding:10px 30px;background-color:#1b2e6a;color:#fff;display:inline-block;font-size: 16px;border-radius: 4px;
}

@media screen and (max-width: 1441px) {
  .main {
    padding-top: 80px;
    padding-bottom: 80px
  }
}

@media screen and (max-width: 1367px) {
  .main {
    padding-top: 70px;
    padding-bottom: 70px
  }
}

@media screen and (max-width: 1281px) {
  .main {
    padding-top: 60px;
    padding-bottom: 60px
  }

  .project-list ul li {
    width: 33.3333%
  }
}

@media screen and (max-width: 1171px) {
  .project-list ul {
    margin: -15px -15px 0
  }

  .project-list ul li {
    padding: 15px
  }
}

@media screen and (max-width: 992px) {
  .main {
    padding-top: 50px;
    padding-bottom: 50px
  }
}

@media screen and (max-width: 768px) {
  .main {
    padding: 0;
    padding-top: 35px;
    padding-bottom: 30px
  }

  .project-list ul li {
    width: 50%
  }

  .project-list ul li .txt {
    left: 10px;
    right: 10px;
    bottom: 15px;
    padding: 15px
  }

  .project-list ul li .txt h6 {
    line-height: 22px;
    height: 44px
  }
}

@media screen and (max-width: 576px) {
  .project-list ul {
    margin: -6px -6px 0
  }

  .project-list ul li {
    padding: 6px
  }
}

@media screen and (max-width: 480px) {
  .project-list ul {
    margin: -6px 0 0
  }

  .project-list ul li {
  }
  #pagesize{
    margin: 10px 0 0 !important;
  }
  .main h1{
    font-size: 24px !important;
  }

  .back {
    text-align: center;
  margin-top: 30px !important;
  }
}