.ai_banner img {
  width: 100%;
}
.ph_box {
  display: none;
}
.wrap_1440 {
  width: 1440rem;
  margin: auto;
  max-width: 90%;
}
@media only screen and (max-width: 1024px) {
  .wrap_1440 {
    max-width: 94%;
  }
}
.m_color2 .mCSB_scrollTools .mCSB_draggerRail {
  width: 1px !important;
  background: #b9c0c8 !important;
  display: none;
}
.m_color2 .mCSB_scrollTools .mCSB_draggerContainer::after {
  content: "";
  position: absolute;
  right: 3px;
  top: 0;
  width: 1px;
  height: 100%;
  background: #b9c0c8 !important;
}
.m_color2 .mCSB_scrollTools .mCSB_dragger .mCSB_dragger_bar {
  width: 5px !important;
  -webkit-border-radius: 0;
  border-radius: 0;
  background: #59a1ff !important;
  background: linear-gradient(
    180deg,
    rgba(89, 161, 255, 1) 0%,
    rgba(0, 95, 196, 1) 100%
  ) !important;
}
.m_color2 .mCSB_scrollTools .mCSB_dragger:hover .mCSB_dragger_bar,
.m_color2 .mCSB_scrollTools .mCSB_dragger.mCSB_dragger_onDrag .mCSB_dragger_bar,
.m_color2
  .mCSB_scrollTools
  .mCSB_dragger.mCSB_dragger_onDrag:hover
  .mCSB_dragger_bar {
  background: #59a1ff !important;
  background: linear-gradient(
    180deg,
    rgba(89, 161, 255, 1) 0%,
    rgba(0, 95, 196, 1) 100%
  ) !important;
}

@media only screen and (max-width: 767px) {
  .ph_box {
    display: block;
  }
  .pc_box {
    display: none;
  }
}

* {
  box-sizing: border-box;
}
.mainbox {
  font-size: 16rem;
}
.fnt_14 {
  font-size: 14rem;
}
.fnt_16 {
  font-size: 16rem;
}
.fnt_18 {
  font-size: 18rem;
}
.fnt_24 {
  font-size: 24rem;
}
.fnt_30 {
  font-size: 30rem;
}
.fnt_40 {
  font-size: 40rem;
}
@media only screen and (max-width: 1599px) {
  .fnt_14 {
    font-size: 16rem;
  }
  .fnt_16 {
    font-size: 18rem;
  }
}
@media only screen and (max-width: 1279px) {
  .fnt_14 {
    font-size: 16rem;
  }
  .fnt_16 {
    font-size: 20rem;
  }
  .fnt_18 {
    font-size: 22rem;
  }
}
@media only screen and (max-width: 1024px) {
  .fnt_16 {
    font-size: 16rem;
  }
  .fnt_18 {
    font-size: 16rem;
  }
  .fnt_24 {
    font-size: 18rem;
  }
  .fnt_30 {
    font-size: 22rem;
  }
  .fnt_40 {
    font-size: 24rem;
  }
}

@media only screen and (max-width: 767px) {
  .fnt_14 {
    font-size: 14px;
  }
  .fnt_16 {
    font-size: 14px;
  }
  .fnt_18 {
    font-size: 15px;
  }
  .fnt_24 {
    font-size: 18px;
  }
  .fnt_30 {
    font-size: 20px;
  }
  .fnt_40 {
    font-size: 22px;
  }
}
/* fontsize */

.ai_bg01 {
  background-image: url(../images/ai/ai_bg_01.jpg);
  background-position: top center;
}
.ai_01,
.ai_box02 {
  margin-bottom: 90rem;
  position: relative;
  box-shadow: 0 0 10px 2px rgba(0, 15, 79, 0.05);
  border-radius: 10rem;
  overflow: hidden;
  border: 1rem solid #fff;
}
.ai_title {
  text-align: center;
  margin-bottom: 30rem;
}
.ai_title h3 {
  line-height: 1em;
}
.ai_title i {
  display: block;
  width: 80rem;
  height: 1rem;
  background: #c30020;
  margin: auto;
  margin-top: 30rem;
}
.ai_more {
  padding-top: 40rem;
}
.ai_more a {
  display: inline-block;
  width: 200rem;
  height: 50rem;
  line-height: 50rem;
  background: #c30020;
  color: #fff;
  border-radius: 30rem;
  padding-left: 44rem;
  position: relative;
}
.ai_more a i {
  left: auto;
  right: 25rem;
  width: 16rem;
  height: 16rem;
  border: 1rem solid #fff;
  border-radius: 50%;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  -ms-transition: all 0.3s;
}
.ai_more a b {
  width: 2rem;
  height: 2rem;
  background: #fff;
  border-radius: 50%;
}

.ai_01 {
  margin-top: -70rem;
  z-index: 9;
}
.ai_01 > img {
  width: 100%;
}
.ai_01 .ai_title {
  text-align: left;
}
.ai_01 .ai_title i {
  margin-left: 0;
}
.ai_plan {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  padding: 80rem 75rem;
  width: 57%;
}
.ai_plan_p {
  line-height: 1.8em;
  height: 16.2em;
  overflow: hidden;
}

.ai_box02 {
  background-image: url(../images/ai/a_03.jpg);
  background-position: top center;
  overflow: hidden;
  height: 900rem;
  background-size: cover;
}
.ai_box02 .left,
.ai_box02 .right {
  height: 100%;
}
.ai_box02 .left {
  float: left;
  width: 31.8%;
  background: url(../images/ai/a_02.jpg) no-repeat;
  background-size: cover;
  padding: 50rem 30rem;
}
.ai_box02 .left li {
  margin-bottom: 20rem;
  cursor: pointer;
}
.ai_box02 .left li dt {
  position: relative;
  padding: 5rem 0;
}
.ai_box02 .left dt::after {
  content: "";
  position: absolute;
  left: -30rem;
  top: 0;
  width: 5rem;
  height: 0;
  background: #c30020;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  -ms-transition: all 0.3s;
}
.ai_box02 .left li:last-child {
  margin-bottom: 0;
}
.ai_box02 .right {
  float: right;
  width: 68.2%;
  padding: 70rem 80rem;
  padding-right: 130rem;
}
.ai_box02 .right ul,
.ai_box02 .right li {
  height: 100%;
}
.ai_box02 .right h3 {
  line-height: 1.2em;
  margin-bottom: 40rem;
}
.ai_box02 .left h3 {
  position: relative;
  padding-left: 35rem;
  line-height: 24rem;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  -ms-transition: all 0.3s;
}
.ai_box02 .left h3 span {
  font-weight: bold;
  position: absolute;
  left: 0;
  top: 0;
  width: 24rem;
  height: 24rem;
  background: #5788ec;
  border-radius: 50%;
  border: 1rem solid #fff;
  color: #fff;
}
.ai_box02 .left li.on h3 {
  font-weight: bold;
}
.ai_box02 .left li.on dt::after {
  height: 100%;
}

.ai_box02 .right li {
  overflow: hidden;
  display: none;
}
.ai_box02 .right li.on {
  display: block;
}
.ai_teach_iteam {
  margin-bottom: 30rem;
}
.ai_teach_iteam:last-child {
  margin-bottom: 0;
}
.ai_teach_iteam h4 {
  line-height: 1.6em;
  margin-bottom: 10rem;
}
.ai_teach_p p {
  line-height: 1.8em;
  margin-bottom: 10rem;
}
.ai_teach_p p:last-child {
  margin-bottom: 0;
}
.ai_box02 .mCSB_scrollTools .mCSB_dragger {
  height: 350rem;
}
.ai_box02 .mCSB_outside + .mCSB_scrollTools {
  right: -80rem;
}

.ai_box02 .left ul,
.ai_box02 .right ul {
  display: block;
}
.ai_box02 .left ul li {
  height: auto;
}

.ai_03 {
  padding: 105rem 0 90rem 0;
  background-image: url(../images/ai/ai_bg_02.jpg);
  background-position: top center;
}
.ai_03 .ai_title {
  color: #fff;
}
.ai_03 .ai_title i {
  background: #fff;
}

.ai_way li {
  margin-bottom: 20rem;
  background: #fff url(../images/ai/a_04.jpg) no-repeat 0 0;
  background-size: cover;
  padding: 60rem;
  padding-top: 40rem;
  border-radius: 10rem;
  border: 1rem solid #fff;
}
.ai_way dl {
  overflow: hidden;
}
.ai_way dt {
  overflow: hidden;
  line-height: 50rem;
  margin-bottom: 20rem;
}
.ai_way dt img {
  width: 50rem;
  float: left;
}
.ai_way dt h3 {
  width: calc(100% - 90rem);
  float: right;
}
.ai_way dd {
  padding-left: 90rem;
}
.ai_p01 {
  line-height: 1.8em;
}
.ai_p01 p {
  margin-bottom: 20rem;
}
.ai_p01 p:last-child {
  margin-bottom: 0;
}

.ai_p02 {
  position: relative;
  padding-top: 6rem;
}
.ai_p02::after {
  content: "";
  position: absolute;
  left: 96rem;
  top: 0;
  height: 100%;
  width: 3rem;
  background: rgba(188, 208, 254, 0.65);
}
.ai_process {
  overflow: hidden;
  margin-bottom: 30rem;
}
.ai_process:last-child {
  margin-bottom: 0;
}
.ai_process span,
.ai_process p {
  line-height: 1.8em;
  float: left;
}
.ai_process span {
  width: 130rem;
  position: relative;
}
.ai_process span i {
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  position: absolute;
  top: 6rem;
  left: 88rem;
  background: rgba(188, 208, 254, 0.65);
  z-index: 9;
}
.ai_process span i::after {
  background: #2d76fc;
  width: 9rem;
  height: 9rem;
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  position: absolute;
  left: 50%;
  top: 50%;
}
.ai_process p {
  float: right;
  width: calc(100% - 130rem);
}

.ai_bg02 {
  padding: 95rem 0 105rem 0;
  background: url(../images/ai/ai_bg_03.jpg) no-repeat 0 0;
  background-size: cover;
}
.ai_04 {
  margin-bottom: 70rem;
}

.ai_down {
  padding-bottom: 50rem;
  padding-top: 25rem;
}
.ai_down ul {
  overflow: hidden;
  margin: 0 -15rem;
}
.ai_down li {
  float: left;
  width: 50%;
  margin-bottom: 20rem;
}
.ai_down li a {
  overflow: hidden;
  box-shadow: 0 0 10px 2px rgba(0, 15, 79, 0.05);
  line-height: 40rem;
  display: block;
  margin: 0 15rem;
  background: #f1f4ff;
  padding: 45rem 40rem;
  padding-right: 45rem;
  border-radius: 10rem;
  background: linear-gradient(
    90deg,
    rgba(241, 244, 255, 1) 0%,
    rgba(255, 255, 255, 1) 100%
  );
  border: 1rem solid #fff;
}
.ai_down li a > img {
  width: 39rem;
  height: 39rem;
  float: left;
  margin-right: 30rem;
}
.ai_down li a > i {
  width: 24rem;
  float: right;
}
.ai_down li a > i img {
  width: 100%;
  vertical-align: middle;
}
.ai_down li a > span {
  line-height: 1.2em;
  width: calc(100% - 110rem);
  /* white-space: nowrap;  text-overflow: ellipsis; */
  overflow: hidden;

  float: left;
}

.ai_act {
  background-image: url(../images/ai/a_05.jpg);
  padding: 60rem;
  border-radius: 10rem;
  color: #fff;
  text-align: center;
  border: 1rem solid #fff;
}
.ai_act .ai_more a {
  text-align: left;
}

.ai_about {
  padding: 60rem 45rem;
  padding-right: 65rem;
  background: #fff;
  border-radius: 10rem;
}
.ai_about dl {
  display: flex;
  flex-wrap: wrap;
}
.ai_about dt,
.ai_about dd {
  height: 100%;
}
.ai_about dt {
  width: 31%;
  padding-right: 35rem;
  padding-top: 15rem;
}
.ai_about dt img {
  width: 100%;
}
.ai_about dd {
  width: 69%;
  padding-left: 45rem;
  border-left: 1rem solid #b8b8b8;
}
.ai_about dd p {
  line-height: 1.8em;
}
@media only screen and (max-width: 1024px) {
  .ai_bg01 {
    padding-top: 50rem;
  }
  .ai_plan {
    padding: 30rem;
  }
  .ai_title i {
    margin-top: 20rem;
  }
  .ai_more {
    padding-top: 20rem;
  }
  .ai_plan_p {
    height: 12.6em;
  }
  .ai_01 {
    margin-top: 0;
  }

  .ai_box02 .right {
    padding: 30rem;
    width: 60%;
  }
  .ai_box02 .mCSB_outside + .mCSB_scrollTools {
    right: -20rem;
  }
  .ai_box02 .left {
    padding: 30rem;
    width: 40%;
  }
  .ai_box02 .left li {
    margin-bottom: 10rem;
  }
  .ai_way li {
    padding: 40rem;
  }
  .ai_down li a {
    padding: 30rem;
  }
}

@media only screen and (max-width: 767px) {
  .ai_title i {
    height: 1px;
    width: 50px;
  }
  .ai_bg01 .wrap_1440 {
    width: 100%;
    max-width: 100%;
  }
  .ai_01,
  .ai_box02 {
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }
  .ai_bg01 {
    padding-top: 0;
  }
  .mCSB_outside + .mCSB_scrollTools {
    right: -6px;
  }
  .ai_plan {
    width: 100%;
    padding: 55rem;
  }
  .ai_01 .ai_title {
    text-align: center;
  }
  .ai_01 .ai_title i {
    display: none;
  }
  .ai_more a {
    width: 135px;
    padding: 0 20px;
    height: 36px;
    line-height: 36px;
    border-radius: 30px;
  }
  .ai_more a i {
    width: 12px;
    height: 12px;
    right: 20px;
  }
  .ai_more a i b {
    width: 4px;
    height: 4px;
  }
  .ai_01 {
    background: #eaecfb;
    padding-bottom: 150rem;
  }
  .ai_plan {
    position: static;
  }
  .ai_01 > img {
    position: absolute;
    left: 0;
    bottom: 0;
  }
  .ai_plan_p {
    height: auto;
  }
  .ai_more {
    padding-top: 80rem;
  }
  .ai_title i {
    height: 1px;
    margin-top: 15px;
  }
  .ai_title {
    margin-bottom: 30px;
  }
  .ai_03 {
    padding: 100rem 20rem;
  }
  .ai_way dt img {
    width: 40px;
    height: 40px;
  }
  .ai_way dt {
    line-height: 40px;
  }
  .ai_way dt h3 {
    width: calc(100% - 60px);
  }
  .ai_way dd {
    padding-left: 60px;
  }
  .ai_way .ai_processbox {
    padding-left: 0;
  }
  .ai_process span {
    width: 100px;
  }
  .ai_process p {
    width: calc(100% - 110px);
  }
  .ai_p02::after {
    left: 84px;
    width: 2px;
  }
  .ai_process span i {
    width: 18px;
    height: 18px;
    left: 76px;
    top: 3px;
  }
  .ai_process span i::after {
    width: 6px;
    height: 6px;
  }
  .ai_act {
    background-image: url(../images/ai/a_05_ph.jpg);
    padding: 80rem 30rem 60rem 30rem;
  }
  .ai_act .ai_more {
    padding-top: 20px;
  }
  .ai_about dt,
  .ai_about dd {
    float: none;
    width: 100%;
    border: 0;
    padding: 0;
  }
  .ai_down li {
    float: none;
    width: 100%;
  }
  .ai_down li a > img {
    width: 30px;
    height: 30px;
  }
  .ai_down li a > i {
    width: 18px;
  }
  .ai_down li a > span {
    width: calc(100% - 70px);
    text-overflow: inherit;
    white-space: inherit;
  }
  .ai_down li a {
    line-height: 30px;
    padding: 20px;
  }
  .ai_about dd .ai_more {
    padding-top: 30px;
  }
  .ai_about dd .ai_more a {
    display: block;
    margin: auto;
    width: 140px;
  }
  .ai_about_p p {
    margin-bottom: 20rem;
  }
  .ai_about_p p:last-child {
    margin-bottom: 0;
  }
  .ai_about dt img {
    max-width: 80%;
  }
  .ai_about dt {
    text-align: center;
    padding-bottom: 25px;
    margin-bottom: 25px;
    border-bottom: 1px solid #b8b8b8;
  }
  .ai_03 {
    background-image: url(../images/ai/ai_bg_02_ph.jpg);
    background-position: top center;
  }

  .ai_01 {
    margin-bottom: 0;
  }
  .ai_02 {
    padding: 55rem 0 30rem;
    margin: 10px 0;
    background: url(../images/ai/a_02_phone.jpg) no-repeat;
    background-size: cover;
  }
  .ai_02 .ai_title i {
    display: none;
  }
  .ai_box02 {
    height: auto;
    margin: 20rem 0;
    background: none;
  }
  .ai_box02 .left,
  .ai_box02 .right {
    width: 100%;
  }
  .ai_box02 .left ul,
  .ai_box02 .right ul {
    display: flex;
  }
  .ai_box02 .left {
    padding: 0;
    height: auto;
    border-bottom: 1px solid #b9b9b9;
    background: none;
  }
  .ai_box02 .left::before {
    content: "";
    position: absolute;
    left: 95rem;
    bottom: 0;
    right: 95rem;
    height: 3px;
    background: #c3033f;
  }
  .ai_box02 .left ul li {
    padding: 0 0 15px;
    margin: 0;
  }
  .ai_box02 .left ul li dl {
    margin: 0 20rem;
  }
  .ai_box02 .left ul li dt {
    padding: 0;
  }
  .ai_box02 .left h3 {
    height: auto;
    height: 7.5em;
    line-height: 1.5;
    font-weight: bold;
    padding-left: 45px;
  }
  .ai_box02 .left h3 span {
    width: 30px;
    height: 30px;
  }
  .ai_box02 .left dt::after {
    display: none;
  }
  .ai_box02 .right {
    padding: 0;
    margin: 40rem 0 0 20rem;
    width: calc(100% - 50rem);
  }
  .ai_box02 .right h3 {
    font-size: 16px;
  }
  .ai_box02 .right li {
    display: block;
    height: 880rem;
    padding: 50rem 50rem 50rem 50rem;
    background: #fff;
    border-radius: 10px;
  }
  .ai_box02 .right li .inner {
    /*height:780rem; overflow-y: auto; padding-right: 20rem;*/
  }
  .ai_box02 .mCSB_outside + .mCSB_scrollTools {
    right: 10px;
    top: 50rem;
    bottom: 50rem;
  }
}

@media only screen and (min-width: 1025px) {
  .ai_more a:hover {
    color: #fff !important;
    opacity: 0.9;
  }
  .ai_more a:hover i {
    right: 30rem;
  }
  .ai_box02 .left li:hover h3 {
    font-weight: bold;
  }
}