.top {
  width: 100%;
  background-color: #2D9BA8;
}

#top {
  width: 980px;
  margin: auto;
  height: 80px;
}

.top_left {
  padding-top: 10px;
  float: left;
  height: 60px;
  position: relative;
}

.banner img {
  height: 500px;
  width: 100%;
}

h2 {
  position: absolute;
  top: 40%;
  left: 20%;
  width: 500px;
  height: 300px;
  font-size: 3.5vw;
  letter-spacing: 5px;
  color: white;
  text-shadow: 2px 2px 4px #2D9BA8;
  line-height: 50px;
  font-weight: bold;
}

.banner img {
  height: 100%;
  width: 100%;
}

.nav {
  /* width: 980px; */
  margin: auto;
  margin-top: 20px;
  overflow: hidden;
}

.nav1 {
  overflow: hidden;
  width: 100%;
}


h3 {
  font-size: 3vw;
  color: #2D9BA8;
  display: block;
  line-height: 70px;
  margin-left: 10%;
}

h5 {
  font-size: 3vw;
  color: #2D9BA8;
  display: block;
  line-height: 70px;
  margin-top: 10%;
}

.nav1_bottom_left2 {
  display: flex;
  flex-direction: column;
  float: left;
  overflow: hidden;
  width: 80%;
  /* height: 395px; */
  overflow: hidden;
  color: #144264;
  font-size: 10vr;
  margin-left: 10%;
}

@media screen and (min-width: 960px) {

  h6,
  .nav1_bottom_left2 p,
  .nav2_center p,
  .nav1_gray p {
    font-size: 26px !important;
  }

  .js {
    font-size: 24px !important;
  }
}

@media screen and (max-width: 960px) {
  h5 {
    margin-top: 0 !important;
  }

  h2 {
    top: 20% !important;
  }

  h6 {
    font-size: 16px !important;
  }

  .js {
    font-size: 14px !important;
  }

  h1 {
    line-height: 50px !important;
  }

  .nav1_gray p {
    width: 100% !important;
    float: none !important;
    margin-top: 0;
  }

  .k {
    display: flex;
    justify-content: center;
    margin-top: 45px !important;
  }

  .middle2 {
    left: 20% !important;
    padding-bottom: 5% !important;
    margin-top: 0 !important;
  }

  .btn2 {
    margin: 10px 0 !important;
    font-size: 12px !important;
  }
}

@media screen and (max-width: 760px) {
  .nav1_bottom_left2 p {
    font-size: 16px !important;
  }

  h1 {
    margin-top: 1% !important;
    left: 45% !important;
  }
}


.nav1_bottom_left2 p {
  line-height: 2em;
  text-indent: 2em;
}

.nav1_bottom_left2 p:hover {
  color: red;
}

.nav1_gray img {
  position: relative;
  width: 30%;
  margin-top: -6%;
  margin-left: 10%;
}

.nav1_gray {
  background-color: #ECECEC;
  margin-top: 300px;
}

.nav1_gray p {
  line-height: 2em;
  width: 50%;
  float: right;
  /* margin-top: 10%; */
}

.middle2 {
  margin-left: 20%;
  padding-bottom: 5%;
  margin-top: -10%; 
}

h4 {
  position: relative;
  right: 80px;
  font-size: 3vw;
  color: #2D9BA8;
  display: block;
  line-height: 70px;
  left: 40%;
}

.nav3_top {
  width: 80%;
  margin-left: 12%;
}

.nav2 {
  float: center;
  margin-top: 100px;
}

.nav2_center {
  position: relative;
  color: #144264;
  font-size: 4vr;
}

.nav2_center p {
  line-height: 1.5em;
  text-indent: 2em;
  width: 80%;
  margin-left: 10%;
  text-align: center;
}

.nav2_center p:hover {
  color: red;
}

.desinger {
  background-color: #2D9BA8;
  margin-top: 50px;
  margin-bottom: 50px;
}

.desinger {
  background-color: #2D9BA8;
  margin-top: 100px;
  margin-bottom: 50px;
  font-weight: block;
}

h1 {
  color: white;
  position: absolute;
  margin-top: 3%;
  left: 46%;
  font-size: 2vw;
  display: block;
  line-height: 70px;
}

h9 {
  color: white;
  width: 50%;
  font-size: 20px;
}

.nav2 img {
  width: 100%;


}

.forest3 img {
  width: 50%;
  margin-left: 25%;
}

.ds {
  text-align: center;
}

.ds img {
  width: 70%;
}