* {
  margin: 0;
  padding: 0;
}
body {
  background-color: #004d93;
}
.clearfix::after {
  content: '';
  display: block;
  height: 0;
  visibility: inherit;
  clear: both;
}
.center-block-1421 {
  margin: 0 auto;
  width: 1421px;
}
a {
  color: inherit;
  text-decoration: none;
}
header {
  background: url('slwxsjdsjggs-202501-banner.jpg') center center no-repeat;
  height: 960px;
  background-size: cover;
}
main {
  background-color: #060079;
}
section {
  background: #ffffff;
  padding: 7px;
  border-radius: 10px;
}
section + section {
  margin-top: 28px;
}
section .img {
  position: relative;
  width: 453px;
  height: 289px;
  float: left;
}
section .img img {
  width: 100%;
  height: 100%;
}
.jiaob {
  position: absolute;
}
section .cont {
  width: 946px;
  float: right;
}
.cont {
  padding: 0 5px;
  box-sizing: border-box;
}
.cont h2 {
  text-align: center;
  font-size: 16px;
  color: #303030;
  margin: 20px 0;
}
.cont p {
  line-height: 28px;
  text-indent: 2em;
}
.jiaob {
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  text-align: center;
  line-height: 22px;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.6);
  font-size: 11px;
  border-bottom-right-radius: 10px;
}

section:nth-child(even) .img {
  float: right;
}
section:nth-child(even) .cont {
  float: left;
}
section:nth-child(even) .jiaob {
  left: initial;
  right: 0;
  border-bottom-right-radius: initial;
  border-bottom-left-radius: 10px;
}
footer {
  margin-top: 30px;
}