.container_ht {
  width: 100%;
}

.container_ht .part1 {
  width: 100%;
  min-width: 1200px;
  height: 1130px;
  background: url(./img/part1_bg.png) no-repeat center/cover;
  position: relative;
}

.container_ht .part1 .part1_left {
  position: absolute;
  /* left: -4%; */
  top: -3%;
}

.container_ht .part1 .part1_left img {
  /* width: 1368px; */
}

.container_ht .part1 .part1_right {
  width: 390px;
  position: absolute;
  left: 55%;
  top: 38%;
}

.container_ht .part1 .part1_right img {
  width: 430px;
}

.container_ht .part1 .part1_words {
  font-size: 52px;
  color: #00e1ff;
  text-align: left;
  margin-top: 30px;
}

.container_ht .part1 .part1_words p {
  height: 68px;
}

.container_ht .part2 {
  width: 100%;
  min-width: 1200px;
  height: 672px;
  text-align: center;
  font-size: 18px;
  line-height: 1.2;
  padding-top: 240px;
  background: url(./img/part2_bg.jpg) no-repeat center/cover;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

.container_ht .part2 .part2_content .title {
  font-size: 30px;
  color: #03b2ff;
  height: 76px;
}

.container_ht .part2 .part2_content .title_detail p {
  width: 660px;
  text-align: left;
  margin: 0 auto;
  color: #dcd9d9;
  font-size: 18px;
  line-height: 32px;
  height: 32px;
}

.container_ht .part3, .container_ht .part4 {
  width: 100%;
  min-width: 1200px;
  height: 1559px;
  margin-top: 90px;
  background: url(./img/part3_bg.jpg) no-repeat center/cover;
}

.container_ht .part3 .main, .container_ht .part4 .main {
  width: 530px;
  position: relative;
  left: 54%;
  top: 14%;
}

.container_ht .part3 .main .part3_title, .container_ht .part3 .main .part4_title, .container_ht .part4 .main .part3_title, .container_ht .part4 .main .part4_title {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: start;
      -ms-flex-pack: start;
          justify-content: flex-start;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin-bottom: 65px;
}

.container_ht .part3 .main .part3_title img, .container_ht .part3 .main .part4_title img, .container_ht .part4 .main .part3_title img, .container_ht .part4 .main .part4_title img {
  height: 90px;
  margin-right: 20px;
}

.container_ht .part3 .main .part3_title .word, .container_ht .part3 .main .part4_title .word, .container_ht .part4 .main .part3_title .word, .container_ht .part4 .main .part4_title .word {
  font-size: 30px;
  color: #03b2ff;
  font-weight: 400;
}

.container_ht .part3 .main .part3_title .word span, .container_ht .part3 .main .part4_title .word span, .container_ht .part4 .main .part3_title .word span, .container_ht .part4 .main .part4_title .word span {
  display: inline-block;
  font-size: 32px;
  color: #03b2ff;
  font-weight: 700;
}

.container_ht .part3 .main .part3_content, .container_ht .part3 .main .part4_content, .container_ht .part4 .main .part3_content, .container_ht .part4 .main .part4_content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.container_ht .part3 .main .part3_content img, .container_ht .part3 .main .part4_content img, .container_ht .part4 .main .part3_content img, .container_ht .part4 .main .part4_content img {
  height: 276px;
  margin-right: 42px;
}

.container_ht .part3 .main .part3_content ul li, .container_ht .part3 .main .part4_content ul li, .container_ht .part4 .main .part3_content ul li, .container_ht .part4 .main .part4_content ul li {
  font-size: 16px;
  color: #5f5d5d;
  margin-bottom: 50px;
}

.container_ht .part3 .main .part3_content ul li .details, .container_ht .part3 .main .part4_content ul li .details, .container_ht .part4 .main .part3_content ul li .details, .container_ht .part4 .main .part4_content ul li .details {
  line-height: 1.5;
  width: 256px;
}

.container_ht .part3 .main .part3_content ul li .title, .container_ht .part3 .main .part4_content ul li .title, .container_ht .part4 .main .part3_content ul li .title, .container_ht .part4 .main .part4_content ul li .title {
  font-size: 25px;
  color: #03b2ff;
  height: 45px;
  font-weight: 700;
}

.container_ht .part4 {
  background: url(./img/part4_bg.jpg) no-repeat center/cover;
  height: 770px;
  margin-top: 0;
}

.container_ht .part4 .main {
  left: 30%;
  top: -7%;
}

.container_ht .part5 {
  width: 100%;
  min-width: 1200px;
  height: 774px;
  background: url(./img/part5_bg.png) no-repeat center/cover;
  padding-top: 180px;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

.container_ht .part5 .part5_content {
  margin-bottom: 110px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}

.container_ht .part5 .part5_content .left, .container_ht .part5 .part5_content .right {
  width: 442px;
}

.container_ht .part5 .part5_content .left {
  margin-right: 100px;
}

.container_ht .part5 .button {
  color: #393a3b;
  width: 150px;
  height: 40px;
  border-radius: 5px;
  background-color: #00e1ff;
  margin: 0 auto;
  text-align: center;
  line-height: 40px;
  font-size: 18px;
  cursor: pointer;
}
.container_ht .part6 {
  width: 100%;
  margin: 0 auto;
  padding: 80px 0;
  text-align: center;
  background-color: #D8D8D8;
}
@media screen and (max-width: 1900px) {
  .container_ht .part1 .part1_left img {
    width: 1200px;
  }
  .container_ht .part1 .part1_right {
    left: 58%;
  }
  .container_ht .part1 .part1_right img {
    width: 412px;
  }
  .container_ht .part1 .part1_words {
    font-size: 46px;
  }
  .container_ht .part1 .part1_words p {
    height: 64px;
  }
}