.about_section1 {
  overflow: hidden;
  background-color: #f5f5f5;
}

@media screen and (max-width: 850px) {
  .about_section1 .center {
    width: 100%;
  }
}

.about_section1 .center .section1_wrap {
  position: relative;
  height: 650px;
}

@media screen and (max-width: 1100px) {
  .about_section1 .center .section1_wrap {
    height: 600px;
  }
}

@media screen and (max-width: 1000px) {
  .about_section1 .center .section1_wrap {
    height: 550px;
  }
}

@media screen and (max-width: 850px) {
  .about_section1 .center .section1_wrap {
    height: auto;
  }
}

.about_section1 .center .section1_wrap .textbox {
  z-index: 5;
  position: relative;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  padding-top: 150px;
}

@media screen and (max-width: 1100px) {
  .about_section1 .center .section1_wrap .textbox {
    padding-top: 130px;
  }
}

@media screen and (max-width: 1000px) {
  .about_section1 .center .section1_wrap .textbox {
    padding-top: 100px;
  }
}

@media screen and (max-width: 850px) {
  .about_section1 .center .section1_wrap .textbox {
    text-align: center;
    padding: 50px 0;
  }
}

.about_section1 .center .section1_wrap .textbox strong {
  display: block;
  font-size: 30px;
  margin-bottom: 25px;
  opacity: 0;
  -webkit-transform: translateX(100px);
          transform: translateX(100px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
  -webkit-transition-delay: 0.3s;
          transition-delay: 0.3s;
}

@media screen and (max-width: 1100px) {
  .about_section1 .center .section1_wrap .textbox strong {
    font-size: 25px;
  }
}

@media screen and (max-width: 600px) {
  .about_section1 .center .section1_wrap .textbox strong {
    font-size: 20px;
    margin-bottom: 15px;
  }
}

@media screen and (max-width: 450px) {
  .about_section1 .center .section1_wrap .textbox strong {
    font-size: 18px;
  }
}

.about_section1 .center .section1_wrap .textbox h3 {
  font-size: 55px;
  margin-bottom: 35px;
  opacity: 0;
  -webkit-transform: translateX(100px);
          transform: translateX(100px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
  -webkit-transition-delay: 0.6s;
          transition-delay: 0.6s;
}

@media screen and (max-width: 1100px) {
  .about_section1 .center .section1_wrap .textbox h3 {
    font-size: 45px;
  }
}

@media screen and (max-width: 600px) {
  .about_section1 .center .section1_wrap .textbox h3 {
    font-size: 35px;
    margin-bottom: 20px;
  }
}

@media screen and (max-width: 450px) {
  .about_section1 .center .section1_wrap .textbox h3 {
    font-size: 30px;
  }
}

@media screen and (max-width: 320px) {
  .about_section1 .center .section1_wrap .textbox h3 {
    font-size: 27px;
  }
}

.about_section1 .center .section1_wrap .textbox h3 > span > span {
  display: inline-block;
  -webkit-transform: translateX(-30%) translateY(-50%);
          transform: translateX(-30%) translateY(-50%);
}

.about_section1 .center .section1_wrap .textbox p {
  line-height: 150%;
  font-size: 22px;
  color: #878788;
  opacity: 0;
  -webkit-transform: translateX(100px);
          transform: translateX(100px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
  -webkit-transition-delay: 0.9s;
          transition-delay: 0.9s;
}

@media screen and (max-width: 1100px) {
  .about_section1 .center .section1_wrap .textbox p {
    font-size: 20px;
  }
}

@media screen and (max-width: 600px) {
  .about_section1 .center .section1_wrap .textbox p {
    font-size: 18px;
  }
}

@media screen and (max-width: 450px) {
  .about_section1 .center .section1_wrap .textbox p {
    font-size: 16px;
  }
}

.about_section1 .center .section1_wrap .notebook_box {
  z-index: 5;
  position: absolute;
  right: 0;
  top: 80px;
  display: block;
}

@media screen and (max-width: 1100px) {
  .about_section1 .center .section1_wrap .notebook_box {
    max-width: 550px;
  }
}

@media screen and (max-width: 1000px) {
  .about_section1 .center .section1_wrap .notebook_box {
    max-width: 470px;
  }
}

@media screen and (max-width: 850px) {
  .about_section1 .center .section1_wrap .notebook_box {
    display: none;
  }
}

.about_section1 .center .section1_wrap .notebook_box .notebook_img {
  display: block;
  max-width: 100%;
  /* transform: rotateX(45deg); */
  opacity: 0;
  -webkit-transform: rotateZ(-3deg) rotateY(15deg) rotateX(60deg);
          transform: rotateZ(-3deg) rotateY(15deg) rotateX(60deg);
  -webkit-transition: opacity 1.5s, -webkit-transform 1.5s;
  transition: opacity 1.5s, -webkit-transform 1.5s;
  transition: opacity 1.5s, transform 1.5s;
  transition: opacity 1.5s, transform 1.5s, -webkit-transform 1.5s;
}

.about_section1 .center .section1_wrap > span {
  z-index: 1;
  position: absolute;
  display: block;
  border-radius: 100%;
}

.about_section1 .center .section1_wrap > span.circle_l {
  top: 0;
  right: -10%;
  width: 580px;
  height: 580px;
  background-color: #216bf5;
}

@media screen and (max-width: 1100px) {
  .about_section1 .center .section1_wrap > span.circle_l {
    width: 500px;
    height: 500px;
  }
}

@media screen and (max-width: 1000px) {
  .about_section1 .center .section1_wrap > span.circle_l {
    width: 420px;
    height: 420px;
  }
}

@media screen and (max-width: 850px) {
  .about_section1 .center .section1_wrap > span.circle_l {
    right: -150px;
    top: -150px;
    width: 330px;
    height: 330px;
  }
}

@media screen and (max-width: 600px) {
  .about_section1 .center .section1_wrap > span.circle_l {
    right: -110px;
    top: -130px;
    width: 240px;
    height: 240px;
  }
}

.about_section1 .center .section1_wrap > span.circle_m {
  width: 150px;
  height: 150px;
  left: -2%;
  bottom: 10px;
  background-color: #4b86f5;
}

@media screen and (max-width: 1000px) {
  .about_section1 .center .section1_wrap > span.circle_m {
    width: 120px;
    height: 120px;
  }
}

@media screen and (max-width: 850px) {
  .about_section1 .center .section1_wrap > span.circle_m {
    left: -3px;
    width: 100px;
    height: 100px;
  }
}

@media screen and (max-width: 500px) {
  .about_section1 .center .section1_wrap > span.circle_m {
    width: 80px;
    height: 80px;
  }
}

@media screen and (max-width: 400px) {
  .about_section1 .center .section1_wrap > span.circle_m {
    width: 60px;
    height: 60px;
  }
}

.about_section1 .center .section1_wrap > span.circle_s {
  left: 6%;
  bottom: 0;
  width: 75px;
  height: 75px;
  background-color: rgba(33, 107, 245, 0.3);
}

@media screen and (max-width: 1000px) {
  .about_section1 .center .section1_wrap > span.circle_s {
    width: 60px;
    height: 60px;
  }
}

@media screen and (max-width: 850px) {
  .about_section1 .center .section1_wrap > span.circle_s {
    left: 55px;
    width: 50px;
    height: 50px;
  }
}

@media screen and (max-width: 500px) {
  .about_section1 .center .section1_wrap > span.circle_s {
    width: 40px;
    height: 40px;
  }
}

@media screen and (max-width: 400px) {
  .about_section1 .center .section1_wrap > span.circle_s {
    left: 40px;
    width: 30px;
    height: 30px;
  }
}

.about_section1.active .center .section1_wrap .textbox strong {
  opacity: 1;
  -webkit-transform: translateX(0);
          transform: translateX(0);
}

.about_section1.active .center .section1_wrap .textbox h3 {
  opacity: 1;
  -webkit-transform: translateX(0);
          transform: translateX(0);
}

.about_section1.active .center .section1_wrap .textbox p {
  opacity: 1;
  -webkit-transform: translateX(0);
          transform: translateX(0);
}

.about_section1.active .center .section1_wrap .notebook_box .notebook_img {
  opacity: 1;
  -webkit-transform: rotateZ(0) rotateY(0) rotateX(0);
          transform: rotateZ(0) rotateY(0) rotateX(0);
}

.about_section2 {
  background-color: #f5f5f5;
}

.about_section2 .center > .textbox {
  text-align: center;
  margin-bottom: 120px;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox {
    margin-bottom: 100px;
  }
}

@media screen and (max-width: 500px) {
  .about_section2 .center > .textbox {
    margin-bottom: 80px;
  }
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox {
    margin-bottom: 50px;
  }
}

.about_section2 .center > .textbox h3 {
  font-size: 35px;
  line-height: 150%;
  opacity: 0;
  -webkit-transform: translateY(70px);
          transform: translateY(70px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox h3 {
    font-size: 30px;
  }
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox h3 {
    font-size: 25px;
  }
}

@media screen and (max-width: 320px) {
  .about_section2 .center > .textbox h3 {
    font-size: 20px;
  }
}

.about_section2 .center > .textbox h4 {
  font-size: 25px;
  line-height: 170%;
  opacity: 0;
  -webkit-transform: translateY(70px);
          transform: translateY(70px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox h4 {
    font-size: 20px;
  }
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox h4 {
    font-size: 18px;
  }
}

@media screen and (max-width: 320px) {
  .about_section2 .center > .textbox h4 {
    font-size: 16px;
  }
}

.about_section2 .center > .textbox h5 {
  font-size: 27px;
  line-height: 170%;
  opacity: 0;
  -webkit-transform: translateY(70px);
          transform: translateY(70px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox h5 {
    font-size: 22px;
  }
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox h5 {
    font-size: 20px;
  }
}

@media screen and (max-width: 320px) {
  .about_section2 .center > .textbox h5 {
    font-size: 18px;
  }
}

.about_section2 .center > .textbox h6 {
  font-size: 35px;
  line-height: 150%;
  opacity: 0;
  -webkit-transform: translateY(70px);
          transform: translateY(70px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox h6 {
    font-size: 22px;
  }
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox h6 {
    font-size: 20px;
  }
}

@media screen and (max-width: 320px) {
  .about_section2 .center > .textbox h6 {
    font-size: 18px;
  }
}

.about_section2 .center > .textbox p {
  font-size: 18px;
  line-height: 170%;
  color: #646464;
  max-width: 400px;
  margin: 0 auto;
  margin-top: 20px;
  text-align: left;
  white-space: nowrap;
  opacity: 0;
  -webkit-transform: translateY(70px);
          transform: translateY(70px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
  -webkit-transition-delay: 0.3s;
          transition-delay: 0.3s;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox p {
    text-align: center;
    max-width: 100%;
    font-size: 16px;
  }
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox p {
    font-size: 14px;
    white-space: normal;
  }
}

@media screen and (max-width: 400px) {
  .about_section2 .center > .textbox p br {
    display: none;
  }
}

.about_section2 .center > .textbox.active h3, .about_section2 .center > .textbox.active h4, .about_section2 .center > .textbox.active h5, .about_section2 .center > .textbox.active h6, .about_section2 .center > .textbox.active p {
  opacity: 1;
  -webkit-transform: translateY(0);
          transform: translateY(0);
}

.about_section2 .center > .textbox.textbox1 h3 {
  position: relative;
}

.about_section2 .center > .textbox.textbox1 h3 .introduce {
  position: absolute;
  left: 0;
  top: 50%;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
  display: block;
  font-size: 20px;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox.textbox1 h3 .introduce {
    display: none;
  }
}

.about_section2 .center > .textbox.textbox4 {
  position: relative;
}

.about_section2 .center > .textbox.textbox4 .deco {
  display: none;
  max-width: 430px;
  text-align: left;
  margin: 0 auto;
  font-size: 100px;
  color: #b1c4f5;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox.textbox4 .deco {
    max-width: 360px;
    font-size: 80px;
  }
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox.textbox4 .deco {
    max-width: 300px;
    font-size: 60px;
  }
}

.about_section2 .center > .textbox.textbox4 h5 {
  margin-top: -35px;
}

@media screen and (max-width: 450px) {
  .about_section2 .center > .textbox.textbox4 h5 {
    margin-top: -25px;
  }
}

.about_section2 .center > .textbox.textbox4 .circle {
  position: absolute;
  display: block;
  border-radius: 100%;
}

.about_section2 .center > .textbox.textbox4 .circle.circle_l {
  bottom: -50px;
  right: 7%;
  width: 80px;
  height: 80px;
  background-color: #c9d8f5;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox.textbox4 .circle.circle_l {
    right: 3%;
    bottom: -60px;
    width: 60px;
    height: 60px;
  }
}

.about_section2 .center > .textbox.textbox4 .circle.circle_m {
  width: 40px;
  height: 40px;
  right: 5.5%;
  bottom: 0;
  background-color: rgba(75, 134, 245, 0.5);
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox.textbox4 .circle.circle_m {
    right: 0;
    bottom: -20px;
    width: 35px;
    height: 35px;
  }
}

.about_section2 .center > .textbox.textbox4 .circle.circle_s {
  right: 3%;
  bottom: -70px;
  width: 20px;
  height: 20px;
  background-color: #709ff5;
}

@media screen and (max-width: 850px) {
  .about_section2 .center > .textbox.textbox4 .circle.circle_s {
    display: none;
  }
}

.about_section2 .center ul {
  max-width: 1000px;
  margin: 0 auto;
  margin-bottom: 120px;
}

@media screen and (max-width: 850px) {
  .about_section2 .center ul {
    display: none;
  }
}

.about_section2 .center ul.active li {
  opacity: 1;
  -webkit-transform: translateY(0);
          transform: translateY(0);
}

.about_section2 .center ul li {
  width: calc(50% - 30px);
  border-radius: 15px;
  background-color: #FFF;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  padding: 25px;
  opacity: 0;
  -webkit-transform: translateY(70px);
          transform: translateY(70px);
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
  transition: opacity 1s, transform 1s, -webkit-transform 1s;
}

.about_section2 .center ul li:nth-of-type(1) {
  float: left;
}

.about_section2 .center ul li:nth-of-type(2) {
  float: right;
  -webkit-transition-delay: 0.3s;
          transition-delay: 0.3s;
}

@media screen and (max-width: 1100px) {
  .about_section2 .center ul li {
    width: calc(50% - 20px);
  }
}

.about_section2 .center ul li .inner {
  position: relative;
}

.about_section2 .center ul li .inner h6 {
  float: left;
  z-index: 1;
  position: relative;
  font-size: 22px;
  margin-bottom: 30px;
}

@media screen and (max-width: 1100px) {
  .about_section2 .center ul li .inner h6 {
    font-size: 20px;
  }
}

.about_section2 .center ul li .inner h6::before {
  content: '';
  z-index: -1;
  position: absolute;
  left: 0;
  bottom: -50%;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
  display: block;
  width: 100%;
  height: 50%;
  background-color: #b1c4f5;
}

.about_section2 .center ul li .inner p {
  line-height: 170%;
  font-size: 15px;
  color: #666;
}

@media screen and (max-width: 1100px) {
  .about_section2 .center ul li .inner p {
    font-size: 14px;
  }
}

.about_section2 .center ul li .inner .bg {
  position: absolute;
  right: 0;
  top: 0;
  width: 105px;
  height: 105px;
  border-radius: 100%;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.about_section2 .center ul li .inner .bg.bg1 {
  background-image: url(/asset/img/about/about_img02.jpg);
}

.about_section2 .center ul li .inner .bg.bg2 {
  background-image: url(/asset/img/about/about_img03.jpg);
}

@media screen and (max-width: 1100px) {
  .about_section2 .center ul li .inner .bg {
    width: 90px;
    height: 90px;
  }
}

@media screen and (max-width: 900px) {
  .about_section2 .center ul li .inner .bg {
    width: 65px;
    height: 65px;
  }
}

.about_section2 .center .bgbox {
  width: 100%;
  height: 240px;
  overflow: hidden;
}

@media screen and (max-width: 850px) {
  .about_section2 .center .bgbox {
    height: 200px;
  }
}

@media screen and (max-width: 600px) {
  .about_section2 .center .bgbox {
    height: 150px;
  }
}

.about_section2 .center .bgbox .bg {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-image: url(/asset/img/about/about_img04.jpg);
  -webkit-transform: scale(1.2);
          transform: scale(1.2);
  -webkit-transition: -webkit-transform 0.2s;
  transition: -webkit-transform 0.2s;
  transition: transform 0.2s;
  transition: transform 0.2s, -webkit-transform 0.2s;
  -webkit-transition-timing-function: linear;
          transition-timing-function: linear;
}

.about_section2 .center .now {
  display: block;
  text-align: center;
  font-size: 26px;
  margin: 50px 0;
}

@media screen and (max-width: 850px) {
  .about_section2 .center .now {
    margin: 40px 0;
    font-size: 22px;
  }
}

@media screen and (max-width: 600px) {
  .about_section2 .center .now {
    margin: 30px 0;
    font-size: 18px;
  }
}

@media screen and (max-width: 320px) {
  .about_section2 .center .now {
    font-size: 16px;
  }
}

.about_section2 .center .look_btn {
  display: block;
  margin: 0 auto;
  width: 180px;
}