* {
  padding: 0;
  margin: 0;
}
a {
  text-decoration: none;
}
.container {
  width: 100%;
  min-width: 1500px;
  height: 930px;
  background: url(https://yanqu-shengxue-1300870289.cos.ap-nanjing.myqcloud.com/group_site/asset/bg.png) no-repeat;
  background-size: 100% 930px;
}
.container .head {
  display: flex;
  align-items: center;
  padding-top: 10px;
  box-sizing: border-box;
}
/* 添加悬停样式 */
/* .container .head:hover {
    background-color: white;
  
  } */
.head::before {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 80px;
  background-color: white;
  transition: top 0.2s ease;
}
/* 悬停状态 */
.head:hover::before {
  top: 0;
}
.container .head .logo {
  width: 180px;
  height: 56px;
  position: relative;
  background: url(../images/logo1.png) no-repeat;
  background-size: 100%;
  margin-left: 180px;
  margin-right: 20px;
}
.container .head:hover .logo {
  background: url(../images/logo.png) no-repeat;
  background-size: 100%;
}
.container .head .menu {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 99;
}
.container .head .menu li {
  height: 50px;
  line-height: 50px;
  margin-left: 56px;
  list-style: none;
}
.container .head .menu li a {
  text-decoration: none;
  font-size: 20px;
  color: #FFFFFF;
}
.container .head .menu .line {
  border-bottom: 4px solid #FFBD3A !important;
}
.container .head .menu .line a {
  font-weight: bold;
  color: #FFBD3A !important;
}
.container .head:hover .menu li a {
  color: #2C2C2C;
}
.container .enterBox {
  width: 1200px;
  min-width: 1200px;
  margin: 50px auto 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.container .enterBox li {
  width: 559px;
  height: 338px;
  text-align: center;
  list-style: none;
  padding-top: 37px;
  padding-left: 10px;
  cursor: pointer;
  background: url(../images/box.png) no-repeat;
  background-size: 100%;
}
.container .enterBox li:hover .box {
  background: url(../images/cover.png) no-repeat;
}
.container .enterBox li .box {
  width: 466px;
  height: 273px;
  margin: 0 auto;
  padding-top: 26px;
  padding-bottom: 22px;
  box-sizing: border-box;
}
.container .enterBox li .box .title {
  font-weight: bold;
  font-size: 26px;
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  position: relative;
}
.container .enterBox li .box .title span {
  position: relative;
  z-index: 22;
}
.container .enterBox li .box .title .small {
  position: absolute;
  left: 50%;
  transform: translateX(-53%);
  bottom: -5px;
  width: 150px;
  height: 10px;
  z-index: 0;
}
.container .enterBox li .box .title .big {
  position: absolute;
  left: 50%;
  bottom: -5px;
  transform: translateX(-57%);
  width: 160px;
  height: 10px;
  z-index: 0;
}
.container .enterBox li .box .img {
  width: 116px;
  height: 116px;
  margin: 18px auto 6px;
  background: url(../images/group1.png) no-repeat;
}
.container .enterBox li .box .img2 {
  background: url(../images/group2.png) no-repeat;
}
.container .enterBox li .box .img3 {
  background: url(../images/group3.png) no-repeat;
}
.container .enterBox li .box .img4 {
  background: url(../images/group4.png) no-repeat;
}
.container .enterBox li .box .btn {
  width: 202px;
  height: 49px;
  line-height: 49px;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 24px;
  color: #FFFFFF;
  margin: 0 auto;
  border-radius: 10px;
  border: 2px solid #FFFFFF;
}
.container .enterBox li .box .btn img {
  margin-left: 15px;
}
.container .enterBox li:hover .img1 {
  background: url(../images/group1-1.png) no-repeat;
}
.container .enterBox li:hover .img2 {
  background: url(../images/group2-2.png) no-repeat;
}
.container .enterBox li:hover .img3 {
  background: url(../images/group3-3.png) no-repeat;
}
.container .enterBox li:hover .img4 {
  background: url(../images/group4-4.png) no-repeat;
}
.footer {
  width: 100%;
  min-height: 154px;
  background: #272c32;
  display: flex;
}
.footer .flex {
  width: 1200px;
  min-width: 1200px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}
.footer .flex .footer-left {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.footer .flex .footer-left img {
  width: 100px;
}
.footer .flex .footer-left span {
  font-size: 14px;
  color: #FFFFFF;
}
.footer .flex .footer-cont {
  font-size: 12px;
  flex: 1;
  color: #989898 !important;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.footer .flex .footer-cont a {
  color: #989898;
}
.footer .flex .footer-cont .main1 {
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: center;
  margin-top: 32px;
  color: #fff;
}
.footer .flex .footer-cont .main1 span,
.footer .flex .footer-cont .main1 a {
  margin-right: 14px;
  text-decoration: none;
}
.footer .flex .footer-cont .main1 a:hover {
  color: #6CCDFF;
}
.footer .flex .footer-cont .main2 {
  display: flex;
  flex-direction: row;
  align-items: center;
  margin-top: 25px;
}
.footer .flex .footer-cont .main2 img {
  width: 14px;
  height: 14px;
}
.footer .flex .footer-cont .main2 span,
.footer .flex .footer-cont .main2 img {
  margin-right: 6px;
}
.footer .flex .footer-cont .main3 {
  display: flex;
  flex-direction: row;
  align-items: center;
  margin-top: 12px;
  margin-bottom: 15px;
}
.footer .flex .footer-cont .main3 img {
  width: 74px;
}
.footer .flex .footer-cont .main3 span {
  margin-right: 15px;
}
.footer .flex .footer-right {
  font-size: 12px;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.footer .flex .footer-right img {
  width: 76px;
  margin-top: 5px;
}