body {
  margin: 0;
  padding: 0;
}
li {
  list-style: none;
}
a {
  text-decoration: none;
}
.content_1 {
  position: relative;
  width: 100%;
}
.content_1 img {
  width: 100%;
}
.content_1 img:nth-of-type(2) {
  display: none;
}
.content_1 .content1_menu {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
}
.content_1 .content1_menu ul li {
  float: left;
  padding: 10px;
}
.content_1 .content1_menu ul li a {
  color: white;
  font-size: 16px;
}
.content_2 .content2_top {
  text-align: center;
  margin-top: 50px;
  margin-bottom: 20px;
}
.content_2 .content2_top p {
  font-size: 35px;
  color: black;
  margin: 0;
}
.content_2 .content2_bottom {
  position: relative;
  overflow: hidden;
}
.content_2 .content2_bottom img {
  width: 100%;
}
.content_2 .content2_bottom img:nth-of-type(2) {
  display: none;
}
.content_2 .content2_bottom .bottom2_text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 75%;
}
.content_2 .content2_bottom .bottom2_text p {
  font-size: 24px;
  color: white;
  text-indent: 50px;
  line-height: 40px;
}
.content_3 .content3_top {
  text-align: center;
  margin-top: 50px;
}
.content_3 .content3_top p {
  font-size: 36px;
  margin: 0;
  margin-bottom: 10px;
}
.content_3 .content3_top span {
  display: inline-block;
  background: #069AF2;
  color: white;
  padding: 5px 34px;
  border-radius: 17px;
  font-size: 20px;
}
.content_3 .content3_bottom {
  width: 100%;
  margin-top: 45px;
}
.content_3 .content3_bottom .content3_content {
  overflow: hidden;
  width: 80%;
  margin: 0 auto;
  margin-bottom: 30px;
}
.content_3 .content3_bottom .content3_content img {
  width: 30%;
  float: left;
}
.content_3 .content3_bottom .content3_content .content3_text {
  width: 70%;
  float: left;
  padding: 0 20px;
  box-sizing: border-box;
  margin: 30px 0;
}
.content_3 .content3_bottom .content3_content .content3_text span {
  display: inline-block;
  color: #069AF2;
  font-size: 23px;
  border-bottom: 1px solid #069AF2;
  padding-bottom: 8px;
}
.content_3 .content3_bottom .content3_content .content3_text p {
  font-size: 20px;
}
.content_3 .content3_bottom .content3_1_content {
  overflow: hidden;
  width: 80%;
  margin: 0 auto;
  margin-bottom: 30px;
}
.content_3 .content3_bottom .content3_1_content img {
  width: 30%;
  float: right;
}
.content_3 .content3_bottom .content3_1_content .content3_text {
  width: 70%;
  float: left;
  padding: 0 20px;
  box-sizing: border-box;
  margin: 30px 0;
}
.content_3 .content3_bottom .content3_1_content .content3_text span {
  display: inline-block;
  color: #069AF2;
  font-size: 23px;
  border-bottom: 1px solid #069AF2;
  padding-bottom: 8px;
}
.content_3 .content3_bottom .content3_1_content .content3_text p {
  font-size: 20px;
}
.content_4 .content4_top {
  text-align: center;
  margin-top: 50px;
}
.content_4 .content4_top p {
  font-size: 36px;
  font-weight: bold;
  margin: 0;
  margin-bottom: 10px;
}
.content_4 .content4_top span {
  display: inline-block;
  background: #069AF2;
  color: white;
  padding: 5px 34px;
  border-radius: 17px;
  font-size: 20px;
}
.content_4 .content4_bottom .bottom_img {
  width: 100%;
}
.content_4 .content4_bottom .bottom_img img {
  width: 100%;
  display: block;
}
.content_4 .content4_bottom .bottom_img img:nth-of-type(2) {
  display: none;
}
.content_5 {
  width: 100%;
  background: #E1F3FF;
  overflow: hidden;
  padding-bottom: 50px;
}
.content_5 p {
  font-size: 34px;
  text-align: center;
}
.content_5 video {
  width: 60%;
  margin: 0 auto;
  display: block;
}
.content_6 {
  width: 60%;
  height: 500px;
  margin: 0 auto;
  margin-top: 50px;
}
.content_6 .content6_top {
  border-bottom: 1px solid;
}
.content_6 .content6_top  p{
  margin: 14px 0;
}
.content_6 .content6_bottom  p{
  margin: 14px 0;
}
.content_6 .content6_bottom p:nth-of-type(7) {
  text-align: center;
  margin-top: 50px;
}
.content_6 .content6_bottom p:nth-of-type(7) span {
  background: #069AF2;
  padding: 8px 85px;
  border-radius: 18px;
  font-size: 21px;
  color: white;
}
@media screen and (max-width: 1100px) {
  .content_2 .content2_bottom .bottom2_text p {
    font-size: 15px;
    line-height: 25px;
  }
}
@media screen and (max-width: 1000px) {
  .content_1 .content1_menu ul li {
    padding: 0 11px;
  }
  .content_1 .content1_menu ul li a {
    font-size: 14px;
  }
   .content_3 .content3_bottom .content3_content {
    width: 99%;
    margin-bottom: 0;
    padding: 0 20px;
    box-sizing: border-box;
  }
  .content_3 .content3_bottom .content3_content .content3_text {
    margin: 10px 0;
  }
  .content_3 .content3_bottom .content3_content .content3_text span {
    font-size: 18px;
  }
  .content_3 .content3_bottom .content3_content .content3_text p {
    font-size: 15px;
  }
  .content_3 .content3_bottom .content3_1_content {
    width: 99%;
    margin-bottom: 0;
    padding: 0 20px;
    box-sizing: border-box;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text {
    margin: 10px 0;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text span {
    font-size: 18px;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text p {
    font-size: 15px;
  }
}
@media screen and (max-width: 768px) {
  .content_1 img:nth-of-type(1) {
    display: none;
  }
  .content_1 img:nth-of-type(2) {
    display: block;
  }
  .content_1 .content1_menu {
    display: none;
  }
  .content_2 .content2_top {
    margin-top: 20px;
  }
  .content_2 .content2_top p {
    font-size: 15px;
  }
  .content_2 .content2_bottom img:nth-of-type(1) {
    display: none;
  }
  .content_2 .content2_bottom img:nth-of-type(2) {
    display: block;
  }
  .content_2 .content2_bottom .bottom2_text {
    display: none;
  }
  .content_3 .content3_top {
    margin-top: 20px;
  }
  .content_3 .content3_top p {
    font-size: 20px;
  }
  .content_3 .content3_top span {
    padding: 4px 20px;
    font-size: 11px;
  }
  .content_3 .content3_bottom .content3_content {
    box-sizing: border-box;
    margin-bottom: 10px;
  }
  .content_3 .content3_bottom .content3_content .content3_text {
    margin: 0;
  }
  .content_3 .content3_bottom .content3_content .content3_text .content3_2 span {
    font-size: 16px;
  }
  .content_3 .content3_bottom .content3_content .content3_text .content3_2 p {
    font-size: 13px;
  }
  .content_3 .content3_bottom .content3_1_content {
    box-sizing: border-box;
    margin-bottom: 10px;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text {
    margin: 0;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text .content3_2 span {
    font-size: 16px;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text .content3_2 p {
    font-size: 13px;
  }
  .content_4 {
    margin-top: 20px;
  }
  .content_4 .content4_bottom .bottom_img img:nth-of-type(1) {
    display: none;
  }
  .content_4 .content4_bottom .bottom_img img:nth-of-type(2) {
    display: block;
  }
  .content_5 video {
    width: 87%;
  }
  .content_6 {
    width: 88%;
  }
  .content_6 .content6_bottom p:nth-of-type(7) span {
    padding: 8px 60px;
    font-size: 13px;
  }
}
@media screen and (max-width: 600px) {
  .content_3 .content3_bottom .content3_content .content3_text {
    padding: 0 10px;
  }
  .content_3 .content3_bottom .content3_content .content3_text span {
    font-size: 14px;
  }
  .content_3 .content3_bottom .content3_content .content3_text p {
    font-size: 11px;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text {
    padding: 0 10px;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text span {
    font-size: 14px;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text p {
    font-size: 11px;
  }
}
@media screen and (max-width: 400px) {
  .content_3 .content3_bottom .content3_content {
    padding: 0 4px;
  }
  .content_3 .content3_bottom .content3_content img {
    width: 46%;
  }
  .content_3 .content3_bottom .content3_content .content3_text {
    padding: 0 8px;
    width: 53%;
  }
  .content_3 .content3_bottom .content3_content .content3_text span {
    font-size: 14px;
  }
  .content_3 .content3_bottom .content3_content .content3_text p {
    font-size: 11px;
  }
  .content_3 .content3_bottom .content3_1_content {
    padding: 0 4px;
  }
  .content_3 .content3_bottom .content3_1_content img {
    width: 46%;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text {
    padding: 0 8px;
    width: 53%;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text span {
    font-size: 14px;
  }
  .content_3 .content3_bottom .content3_1_content .content3_text p {
    font-size: 11px;
  }
}