.content .banner img {
  width: 100%;
  height: 550px;
}
.content .banner-bottom {
  background: #00a1ef;
}
.content .banner-bottom ul {
  width: 910px;
  height: 150px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  padding-top: 40px;
}
.content .banner-bottom ul li {
  text-align: center;
}
.content .banner-bottom ul li h3 {
  font-size: 40px;
  font-family: 'Noto Sans SC';
  font-weight: bold;
  color: #ffb65e;
}
.content .banner-bottom ul li p {
  font-size: 16px;
  font-family: 'Noto Sans SC';
  font-weight: 400;
  color: #ffffff;
}
.content .model_khal {
  padding-top: 70px;
  padding-bottom: 80px;
}
.content .model_khal .title {
  text-align: center;
}
.content .model_khal .title h3 {
  font-size: 34px;
  font-family: 'Noto Sans SC';
  font-weight: 400;
  color: #333333;
}
.content .model_khal .title span {
  display: block;
  width: 59px;
  height: 4px;
  background: #f39939;
  border-radius: 2px;
  margin: 0 auto;
  margin-top: 20px;
}
.content .model_khal .top_nav {
  width: 910px;
  margin: 0 auto;
  margin-top: 40px;
  margin-bottom: 32px;
}
.content .model_khal .top_nav ul {
  display: flex;
  justify-content: space-between;
}
.content .model_khal .top_nav ul li {
  width: 149px;
  height: 44px;
  background: #ffffff;
  box-shadow: 0px 0px 5px 0px rgba(0, 0, 0, 0.14);
  border-radius: 22px;
  font-size: 18px;
  font-family: 'Noto Sans SC';
  font-weight: 400;
  color: #333333;
  line-height: 44px;
  text-align: center;
  cursor: pointer;
}
.content .model_khal .top_nav ul li:hover {
  background: #ff9506;
}
.content .model_khal .top_nav ul li:hover a {
  color: #fff;
}
.content .model_khal .top_nav ul .active {
  background: #ff9506;
}
.content .model_khal .top_nav ul .active a {
  color: #fff;
}
.content .model_khal .item-nav {
  width: 1200px;
  margin: 0 auto;
  background: #ffffff;
  box-shadow: 0px 0px 5px 0px rgba(0, 0, 0, 0.14);
  border-radius: 10px;
  padding: 25px;
  padding-bottom: 0;
}
.content .model_khal .item-nav ul {
  display: flex;
  justify-content: left;
  flex-wrap: wrap;
}
.content .model_khal .item-nav ul li {
  width: 116px;
  height: 40px;
  background: #ffffff;
  box-shadow: 0px 0px 5px 0px rgba(0, 0, 0, 0.14);
  border-radius: 20px;
  font-size: 18px;
  font-family: 'Noto Sans SC';
  font-weight: 400;
  color: #333333;
  line-height: 40px;
  text-align: center;
  margin-bottom: 25px;
  margin-left: 30px;
  cursor: pointer;
}
.content .model_khal .item-nav ul li:hover {
  background: #ff9506;
}
.content .model_khal .item-nav ul li:hover a {
  color: #fff;
}
.content .model_khal .item-nav ul li:nth-of-type(8n+1) {
  margin-left: 0;
}
.content .model_khal .item-nav ul .active {
  background: #ff9506;
}
.content .model_khal .item-nav ul .active a {
  color: #fff;
}
.content .model_khal .casesList {
  margin-top: 40px;
}
.content .model_khal .casesList ul {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: left;
  flex-wrap: wrap;
  margin-top: 50px;
}
.content .model_khal .casesList ul li {
  width: 284px;
  height: 260px;
  text-align: center;
  margin-bottom: 30px;
  margin-left: 20px;
  background: #ffffff;
  box-shadow: 0px 0px 20px 1px rgba(0, 160, 233, 0.23);
}
.content .model_khal .casesList ul li:nth-of-type(4n+1) {
  margin-left: 0;
}
.content .model_khal .casesList ul li img {
  width: 284px;
  height: 213px;
}
.content .model_khal .casesList ul li h3 {
  font-size: 20px;
  font-family: 'Noto Sans SC';
  font-weight: 400;
  color: #333333;
  height: 47px;
  line-height: 47px;
}
.content .model_khal .casesList ul > a {
  width: 270px;
  height: 60px;
  margin: 0 auto;
  text-align: center;
  font-size: 24px;
  font-family: 'Noto Sans SC';
  font-weight: bold;
  color: #f6f7fb;
  line-height: 60px;
  background-color: #00A0E9;
  margin-top: 20px;
}
.content .model_khal .model_ym {
  width: 600px;
  margin: 0 auto;
  margin-top: 20px;
}
.content .model_khal .model_ym ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.content .model_khal .model_ym ul li {
  font-size: 18px;
  font-family: 'Noto Sans SC';
  font-weight: 500;
  color: #5e5e5e;
  line-height: 24px;
}
.content .model_khal .model_ym ul li a {
  font-size: 18px;
  font-family: 'Noto Sans SC';
  font-weight: 500;
  color: #5e5e5e;
  line-height: 24px;
}
.content .model_khal .model_ym ul li input {
  width: 41px;
  text-align: center;
}