.img-box {
	position: relative;
	display: block;
	overflow: hidden;
	height: 0;
	padding-bottom: 100%;
	outline: none;
}
.img-box > img {
	position: absolute;
	top: 0;
	left: 0;
	display: block;
	outline: none;
	width: 100%;
	height: 100%;
}
.img-box img[src=''],
.img-box img:not([src]) {
	opacity: 0;
	border: 0;
}
.adv {
  margin: 108px 0 118px 0;
}
.adv-con {
  margin-top: 60px;
}
.adv-lt {
  position: relative;
}
.adv-lt .img-box {
  padding-bottom: 21.66666666666667%;
}
.adv-lt .img-box img {
  transition: all 0.3s ease-out 0s;
}
.adv-lt:hover .img-box img {
  transform: scale(1.1);
}
.adv-lt .adv-lt-c {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding-left: 60px;
}
.adv-ul {
  display: flex;
  justify-content: space-between;
}
.adv-ul .adv-li {
  margin-top: 15px;
  width: 32.5%;
  padding-left: 42px;
  padding-top: 62px;
  height: 273px;
  background: #fff;
  transition: all 0.3s ease-out 0s;
}
.adv-ul .adv-li:hover {
  box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.1);
}
.adv-ul .adv-li .adv-li-pic {
  margin-bottom: 24px;
}
/* .adv-ul .adv-li .adv-li-pic img:nth-child(1) {
  display: block;
}
.adv-ul .adv-li .adv-li-pic img:nth-child(2) {
  display: none;
}
.adv-ul .adv-li:hover .adv-li-pic img:nth-child(1) {
  display: none;
}
.adv-ul .adv-li:hover .adv-li-pic img:nth-child(2) {
  display: block;
} */
.adv-ul .adv-li:nth-child(3n) {
  margin-right: 0;
}
.adv-li-t {
  font-size: 24px;
}
.adv-li-p {
  font-size: 16px;
  line-height: 24px;
  margin-top: 22px;
}
/* .adv-ul .adv-li:hover .adv-li-t,
.adv-ul .adv-li:hover .adv-li-p {
  color: #1e5199;
} */
.adv-r {
  float: right;
  width: 27.7%;
  position: relative;
}
.adv-r .img-box {
  padding-bottom: 117.8111587982833%;
}
.adv-r .img-box img {
  transition: all 0.3s ease-out 0s;
}
.adv-r:hover .img-box img {
  transform: scale(1.1);
}
.adv-r .adv-li {
  top: 80px;
  position: absolute;
  color: #fff;
  width: 100%;
  padding: 0 46px;
}
@media (max-width: 1680px) {
  .adv-ul .adv-li {
    height: 250px;
    padding-left: 30px;
    padding-top: 40px;
  }
}
@media (max-width: 1600px) {
  .adv-ul .adv-li {
    height: 240px;
    padding-left: 20px;
    padding-top: 30px;
  }
}
@media (max-width: 1440px) {
  .adv-lt .adv-lt-c {
    padding-left: 40px;
  }
  .adv {
    margin: 88px 0 88px 0;
  }
  .adv-li-p {
    margin-top: 18px;
  }
  .adv-ul .adv-li {
    height: 214px;
  }
  .adv-ul .adv-li .adv-li-pic {
    margin-bottom: 18px;
  }
  .adv-ul .adv-li .adv-li-pic img {
    width: 48px;
  }
}
@media (max-width: 1366px) {
  .adv-ul .adv-li {
    height: 201px;
    padding-top: 24px;
  }
}
@media (max-width: 1199px) {
  .adv-l,
  .adv-r {
    width: 100%;
  }
}
@media (max-width: 767px) {
  .adv-ul .adv-li {
    padding-right: 20px;
  }
  .adv {
    margin: 30px 0 30px 0;
  }
  .adv-con {
    margin-top: 30px;
  }
  .adv-lt .img-box {
    padding-bottom: 0;
    height: auto;
  }
  .adv-lt .img-box img {
    position: relative;
    top: auto;
    left: auto;
    width: 200%;
    height: auto;
    max-width: 200%;
  }
  .adv-lt .adv-lt-c {
    padding-left: 20px;
    padding-right: 20px;
  }
  .adv-ul .adv-li {
    width: 100%;
    height: auto;
    margin-top: 10px;
    padding: 20px 20px;
  }
  .adv-r {
    margin-top: 20px;
  }
  .adv-r .adv-li {
    top: 60px;
    padding: 0 30px;
  }
}