.P {
  display: none;
}
html {
  font-size: 13vw;
}
.topbarM {
  width: 100vw;
  height: 48px;
  display: flex;
  align-items: center;
  background-color: #01102f;
}
.topbarM .logo {
  margin: 0 AUTO;
}
.topbarM .logo h1 {
  line-height: 48px;
  color: orange;
  font-size: 24px;
  font-weight: bold;
}
.navWrapper {
  width: 100vw;
}
.navWrapper .nav {
  display: flex;
  width: 100%;
  background-color: #ece8e8;
  justify-content: space-around;
}
.navWrapper .nav li {
  line-height: 40px;
  width: 24vw;
  margin: 5px auto;
}
.navWrapper .nav li a {
  display: block;
  font-size: 16px;
  text-decoration: none;
  color: black;
  text-align: center;
}
.navWrapper .nav li:nth-child(3) {
  border-bottom: 4px solid orange;
  font-weight: bold;
}
.contentWrapper {
  width: 100vw;
  line-height: 500px;
  text-align: center;
}
.contentWrapper h1 {
  font-size: 20px;
  color: black;
}
.contentWrapper h1 .yun {
  color: skyblue;
  font-weight: bold;
  font-size: 30px;
}
.contentWrapper h1 .xin {
  color: red;
  font-weight: bold;
  font-size: 30px;
}
.footerM {
  margin-top: -7px;
  background-color: #01102f;
}
.footerM .footer {
  line-height: 16px;
  margin: 0 auto;
  padding-top: 20px;
  padding-bottom: 20px;
  width: 80%;
  font-size: 10px;
  color: lightgrey;
  text-align: center;
}
@media only screen and (min-width: 768px) {
  .M {
    display: none;
  }
  .P {
    display: block;
  }
  .P .navP {
    width: 100%;
    height: 100px;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
  }
  .P .navP .nav {
    position: relative;
    margin: 0 auto;
    width: 80%;
    height: 100%;
    display: flex;
    justify-content: space-around;
  }
  .P .navP .nav .logo {
    margin: 30px 20px;
    width: 142px;
    height: 35px;
    background-image: url(../img/top-logo-bg.png);
    background-repeat: no-repeat;
  }
  .P .navP .nav .logo:hover {
    background-position: 0 -35px;
  }
  .P .navP .nav ul {
    width: 70%;
    display: flex;
    justify-content: space-between;
  }
  .P .navP .nav ul li {
    width: 130px;
  }
  .P .navP .nav ul .mkyqy a {
    color: orange;
    font-size: 20px;
  }
  .P .navP .nav ul a {
    display: block;
    line-height: 100px;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    color: black;
    text-align: center;
  }
  .P .navP .nav ul a:hover {
    color: orange;
  }
  .P .bannerP {
    position: relative;
    height: 700px;
    background-image: radial-gradient(#26268d, #0c3458);
  }
  .P .bannerP .title {
    margin: 0 auto;
    width: 1080px;
    margin-top: 20px;
  }
  .P .bannerP .banner {
    margin: 0 auto;
    margin-top: -30px;
    height: 700px;
    width: 1080px;
    background-image: url(../img/instr.png);
    background-repeat: no-repeat;
    background-size: 1080px auto ;
    position: relative;
  }
  .P .bannerP .banner .click {
    background-image: url(../img/click.png);
    width: 200px;
    height: 43px;
    position: absolute;
    top: 285px;
    left: 440px;
    animation: enter 2s steps(2) infinite;
  }
  .P .bannerP .banner .click a {
    display: block;
    height: 50px;
  }
  @keyframes enter {
    from {
      background-position: 0 0;
    }
    to {
      background-position: 0 -82px;
    }
  }
}