body {
  background: #e6f7c6;
}

.logo {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
}

.container {
  width: 1400px;
}

.nav {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  height: 80px;
  border-radius: 10px 10px 0px 0px;
  background: rgba(0, 148, 83, 1);
  line-height: 80px;
}

.nav li {
  width: 25%;
  text-align: center;
}

.nav li span {
  color: rgba(255, 255, 255, 0.4);
}

.nav li a {
  font-size: 22px;
  font-weight: 700;
  line-height: 29.04px;
  color: rgba(255, 246, 163, 1);
  width: 98%;
  display: inline-block;
  box-sizing: border-box;
}

.nr {
  padding: 37px 40px;
  border-radius: 0px 0px 10px 10px;
  background: rgba(255, 255, 255, 1);
  box-shadow: 0px 0px 30px rgba(33, 71, 55, 0.2);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 0px;
  line-height: 50px;
}

.nr p {
  text-indent: 2em;
}

.lbt {
  margin-top: 30px;
}

.lsbh_title {
  height: 193px;
  margin-top: 30px;
  background: url(../images/lsbhfw_title.png) no-repeat center;
}

.lbt {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.kgwh_title {
  height: 193px;
  background: url(../images/kgwhsy_title.png) no-repeat center;
}

.kgwh {
  margin-top: 30px;
}

.xssh_title {
  height: 193px;
  margin-top: 30px;
  background: url(../images/xxsh_title.png) no-repeat center;
}

.cwlj_title {
  height: 193px;
  margin-top: 30px;
  background: url(../images/cwlj_title.png) no-repeat center;
}

.zt_main {
  margin-bottom: 80px;
}

.lbt img {
  width: 32%;
}

@media (max-width: 1500px) {
  .container {
    width: 1200px;
  }

  .zt_header img {
    width: 100%;
  }
}

@media (max-width: 1280px) {
  .container {
    width: 997px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .container {
    width: auto;
  }

  .logo {
    width: 200px;
  }

  .nav li {
    width: 50%;
  }

  .nav {
    height: 160px;
  }

  .lbt img {
    width: 100%;
    margin-top: 20px;
  }
}

@media (max-width: 480px) {
  .nav li {
    width: 100%;
    line-height: 40px;
  }

  .nav li span {
    display: none;
  }

  .nav {
    height: 220px;
  }

  .logo {
    width: 160px;
    top: 5px;
  }
}