.ctn1 {
  margin-top: 100px;
}
.ctn1 .title p {
  line-height: 1.5;
}
.ctn2 {
  position: relative;
  overflow: hidden;
}
.ctn2 .ctn-list ul {
  display: flex;
  flex-wrap: wrap;
}
.ctn2 .ctn-list ul li {
  width: 18.8%;
  cursor: pointer;
  border: 1px solid transparent;
  overflow: hidden;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn2 .ctn-list ul li img {
  width: 100%;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn2 .ctn-list ul li .box {
  display: none;
}
.ctn2 .ctn-list ul li:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
.ctn2 .ctn-list ul li:not(:nth-child(5n)) {
  margin-right: 1.5%;
}
.ctn2 .ctn-list ul li:nth-child(n+6) {
  margin-top: 20px;
}
.ctn2 .ctn-list ul li:hover {
  border: 1px solid var(--color);
}
.ctn2 .ctn-list ul li.active {
  border: 1px solid var(--color);
}
.mask-alert {
  position: fixed;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  left: 0;
  top: 0;
  z-index: 1000;
  display: none;
}
.mask-alert .center {
  width: 740px;
  max-width: 90%;
  background: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  padding: 60px 80px;
  text-align: center;
}
.mask-alert .center p {
  color: #777;
  margin-top: 14px;
  line-height: 1.8;
}
.mask-alert .center p span {
  color: var(--color);
  font-family: Outfit-Bold;
}
.mask-alert .center .s-mores {
  display: flex;
  justify-content: center;
}
.mask-alert .center .s-mores a {
  width: 170px;
}
@media screen and (max-width: 1600px) {
  .ctn1 {
    margin-top: 80px;
  }
}
@media screen and (max-width: 1440px) {
  .mask-alert .center {
    width: 650px;
    padding: 40px 60px;
  }
  .mask-alert .center .s-mores a {
    width: 150px;
  }
}
@media screen and (max-width: 1200px) {
  .ctn1 {
    margin-top: 70px;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    margin-top: 60px;
  }
  .ctn2 .ctn-list ul li {
    width: 33.333%;
  }
  .ctn2 .ctn-list ul li:not(:nth-child(5n)) {
    margin-right: 0;
  }
  .ctn2 .ctn-list ul li:not(:nth-child(3n)) {
    margin-right: 0;
  }
  .ctn2 .ctn-list ul li:nth-child(n+4) {
    margin-top: 14px!important;
  }
  .mask-alert .center {
    padding: 30px;
  }
  .mask-alert .center .text p {
    line-height: 1.6;
  }
}