body,
th,
td,
button,
input,
select,
textarea {
  font-family: "PingFang SC", "Microsoft Yahei", "Hiragino Sans GB", "Helvetica Neue", Helvetica, tahoma, arial, "WenQuanYi Micro Hei", Verdana, sans-serif, "\5B8B\4F53";
}
.content {
  width: 1100px;
  margin: 0 auto;
}
h1,
h2,
h3,
h4,
h5,
h6,
body,
html,
ul,
li,
p {
  padding: 0;
  margin: 0;
}
ul,
li {
  list-style: none;
  -webkit-padding-start: 0;
}
a {
  text-decoration: none;
}
body {
  background: url("https://cdn.ysedu.com/img/app/app_bg_2024020207.png") no-repeat center 473px;
}
.banner {
  position: relative;
  height: 514px;
  background: url("https://cdn.ysedu.com/img/app/app_banner_2024020201.png") no-repeat center;
  overflow: hidden;
}
.banner h1 {
  margin-top: 150px;
  font-size: 84px;
  color: #fff;
  font-weight: bold;
  text-align: center;
}
.banner h1 span {
  color: #f44;
}
.banner h2 {
  margin-top: 50px;
  font-size: 42px;
  color: #fff;
  text-align: center;
}
.banner div.logo {
  position: absolute;
  top: 10px;
  left: 50%;
  width: 354px;
  height: 47px;
  margin-left: -550px;
  background: url("https://cdn.ysedu.com/logo/logo_2024.png") no-repeat center;
}
.content {
  width: 1100;
  margin: 0 auto;
}
.t-l {
  display: inline-block;
  width: 36px;
  height: 28px;
  background: url("https://cdn.ysedu.com/img/app/app_bg_2024020205.png") no-repeat center;
}
.t-r {
  display: inline-block;
  width: 36px;
  height: 28px;
  background: url("https://cdn.ysedu.com/img/app/app_bg_2024020206.png") no-repeat center;
}
.sec1 {
  height: 70px;
  font-size: 26px;
  color: #505050;
  text-align: center;
}
.sec .content {
  height: 600px;
  background-color: #fff;
  overflow: hidden;
  border-radius: 20px;
  box-shadow: 0 0 25px #f0f7f8;
}
.sec h3 {
  height: 120px;
  background: url("https://cdn.ysedu.com/img/app/app_bg_2024020204s.png") no-repeat center;
  margin-top: 50px;
  font-size: 48px;
  color: #333;
  text-align: center;
}
.sec .bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 50px;
}
.sec .bottom > div {
  width: 282px;
  height: 350px;
  background: url("https://cdn.ysedu.com/img/app/app_bg_2024022901.png") no-repeat center;
  margin-top: 20px;
}
.sec .bottom > div h4 {
  line-height: 50px;
  font-size: 22.5px;
  color: #fff;
  text-align: center;
}
.sec .bottom > div h4 span {
  position: relative;
  top: -7px;
  display: inline-block;
  width: 50px;
  height: 0;
  border-top: 1px solid #fff;
  margin: 0 14px;
}
.sec .bottom > div .ewm {
  width: 214px;
  height: 214px;
  margin: 36px auto 0;
  text-align: center;
}
.sec .bottom > div .ewm img {
  width: 100%;
  vertical-align: middle;
}
.sec .bottom > div h6 {
  margin-top: 10px;
  font-size: 16px;
  color: #000;
  font-weight: normal;
  text-align: center;
}
.sec2 {
  margin-top: 0;
}
.sec3 {
  margin-top: 50px;
}
.sec3 .bottom {
  padding: 0 270px;
}
.sec4 {
  margin-top: 50px;
}
.sec4 .bottom {
  display: block;
}
.sec4 .bottom > div {
  margin: 20px auto;
}
div.footer {
  height: 309px;
  background: url("https://cdn.ysedu.com/img/app/app_footer_2024020201.png");
  margin-top: 44px;
}