html,
body {
  position: relative;
  width: 100%;
  height: 100%;
  font-size: 16px;
  font-family: "Microsoft YaHei";
}
.w1200 {
  width: 1200px;
  margin: 0 auto;
}
.banner {
  width: 100%;
}
.banner img {
  width: 100%;
  height: 100%;
}
.nav {
  width: 100%;
  height: 64px;
  background: linear-gradient(to right, #0aaff5, #04c1cb);
}
.nav ul {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  height: 64px;
}
.nav ul li {
  width: 125px;
  height: 64px;
  text-align: center;
  line-height: 64px;
  letter-spacing: 3px;
}
.nav ul li a {
  display: block;
  width: 100%;
  height: 100%;
  color: #ffffff;
  font-size: 22px;
}
.nav ul li:hover {
  background-color: #0076db;
}
.nav ul .nav_active {
  background-color: #0076db;
}
article {
  padding-top: 34px;
}
article .content .showimg {
  width: 100%;
  text-align: center;
}
article .content .title {
  width: 300px;
  height: 40px;
  line-height: 40px;
  text-indent: 18px;
  background: linear-gradient(to right, #10b3f6, #fff);
  border-radius: 25px;
}
article .content .title h3 {
  color: #ffffff;
  font-size: 24px;
}
footer {
  width: 100%;
  height: 55px;
  color: #ffffff;
  font-size: 14px;
  text-align: center;
  line-height: 55px;
  background: linear-gradient(to right, #229ef2, #13b4ba);
}