* {
  margin: 0;
  padding: 0;
}
.large_Rotation {
  height: 400px;
  position: relative;
  background-repeat: no-repeat;
  background-position: center;
  background-size: auto 100%;
}
.large_Rotation .large_Rotation_box {
  width: 1140px;
  height: 400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  position: relative;
}
.large_Rotation .large_Rotation_box .large_box_left {
  width: 461px;
  height: 400px;
}
.large_Rotation .large_Rotation_box .large_box_left div:nth-child(1) {
  height: 65px;
  font-size: 46px;
  font-weight: 500;
  color: #222222;
  line-height: 65px;
  margin-top: 70px;
}
.large_Rotation .large_Rotation_box .large_box_left div:nth-child(2) {
  width: 461px;
  height: 40px;
  font-size: 14px;
  font-weight: 400;
  color: #222222;
  line-height: 20px;
  margin-top: 22px;
}
.large_Rotation .large_Rotation_box .large_box_left input {
  width: 380px;
  height: 46px;
  background: #FFFFFF;
  border-radius: 2px;
  border: none;
  margin-top: 45px;
  padding-left: 15px;
}
.large_Rotation .large_Rotation_box .large_box_left input:focus {
  outline: none;
}
.large_Rotation .large_Rotation_box .large_box_left button {
  width: 90px;
  height: 40px;
  background: #3470FF;
  border-radius: 2px;
  border: none;
  font-size: 12px;
  font-weight: 400;
  color: #FFFFFF;
  margin: 0 0 0 287px;
  position: absolute;
  left: 0;
  top: 245px;
}
.large_Rotation .large_Rotation_box .large_box_img img {
  width: 300px;
  height: 300px;
  margin-top: 39px;
}
.large_Rotation_massive {
  height: 50px;
  font-size: 36px;
  font-weight: 400;
  color: #222222;
  line-height: 50px;
  margin: 100px 0 50px 0;
  text-align: center;
}
.large_massive_box {
  width: 1200px;
  height: 120px;
  margin: 0 auto 24px auto;
  display: flex;
  justify-content: space-between;
}
.large_massive_box .massive_box_item {
  width: 588px;
  height: 120px;
  background: #FFFFFF;
  box-shadow: 0px 2px 20px 0px rgba(52, 112, 255, 0.08);
  display: flex;
  padding: 0 30px;
}
.large_massive_box .massive_box_item .massive_box_item_img img {
  width: 48px;
  height: 48px;
  margin: 36px 30px 0 0 ;
}
.large_massive_box .massive_box_item .massive_box_item_txt {
  margin-top: 22px;
}
.large_massive_box .massive_box_item .massive_box_item_txt div:nth-child(1) {
  height: 30px;
  font-size: 22px;
  font-weight: 400;
  color: #222222;
  line-height: 30px;
}
.large_massive_box .massive_box_item .massive_box_item_txt div:nth-child(2) {
  height: 20px;
  font-size: 14px;
  font-weight: 400;
  color: #8F959E;
  line-height: 20px;
  margin-top: 12px;
}
.large_funtion_div {
  width: 100%;
  height: 706px;
  margin-top: 76px;
  background: rgba(247, 250, 255, 0.8);
}
.large_funtion_div .large_funtion {
  height: 50px;
  font-size: 36px;
  font-weight: 400;
  color: #222222;
  line-height: 50px;
  margin-bottom: 86px;
  padding-top: 36px;
  text-align: center;
}
.large_funtion_div .large_funtion_boxs {
  width: 1200px;
  height: 500px;
  background: #FFFFFF;
  box-shadow: 0px 2px 20px 0px rgba(52, 112, 255, 0.08);
  border-radius: 2px;
  margin: 0 auto;
}
.large_funtion_div .large_funtion_boxs .large_funtion_box {
  width: 1200px;
  height: 250px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
}
.large_funtion_div .large_funtion_boxs .large_funtion_box .funtion_box_item {
  width: 400px;
  height: 250px;
  border: 1px solid #F3F3F3;
}
.large_funtion_div .large_funtion_boxs .large_funtion_box .funtion_box_item .box_item_img {
  width: 48px;
  margin: 0 auto;
}
.large_funtion_div .large_funtion_boxs .large_funtion_box .funtion_box_item .box_item_img img {
  width: 48px;
  height: 48px;
  margin-top: 36px;
}
.large_funtion_div .large_funtion_boxs .large_funtion_box .funtion_box_item .box_item_title {
  width: 110px;
  height: 30px;
  font-size: 22px;
  font-weight: 400;
  color: #222222;
  line-height: 30px;
  margin: 18px auto 0 auto;
}
.large_funtion_div .large_funtion_boxs .large_funtion_box .funtion_box_item .box_item_txt {
  width: 324px;
  height: 80px;
  font-size: 14px;
  font-weight: 400;
  color: #8F959E;
  line-height: 20px;
  margin: 14px auto 0 auto;
  text-align: center;
}
.large_advantage {
  height: 50px;
  font-size: 36px;
  font-weight: 400;
  color: #222222;
  line-height: 50px;
  margin: 100px 0 50px 0;
  text-align: center;
}
.large_advantage_box {
  width: 1200px;
  height: 220px;
  margin: 0 auto 24px auto;
  display: flex;
  justify-content: space-between;
}
.large_advantage_box .large_advantage_item {
  width: 588px;
  height: 220px;
  background: #FFFFFF;
  box-shadow: 0px 2px 20px 0px rgba(52, 112, 255, 0.08);
}
.large_advantage_box .large_advantage_item .advantage_item_img {
  width: 48px;
  margin: 0 auto;
}
.large_advantage_box .large_advantage_item .advantage_item_img img {
  width: 48px;
  height: 48px;
  margin-top: 34px;
}
.large_advantage_box .large_advantage_item .advantage_item_title {
  height: 30px;
  font-size: 22px;
  font-weight: 400;
  color: #222222;
  line-height: 30px;
  text-align: center;
  margin-top: 20px;
}
.large_advantage_box .large_advantage_item .advantage_item_txt {
  width: 324px;
  height: 40px;
  font-size: 14px;
  font-weight: 400;
  color: #8F959E;
  line-height: 20px;
  margin: 18px auto 0 auto;
  text-align: center;
}
.large_case {
  height: 50px;
  font-size: 36px;
  font-weight: 400;
  color: #222222;
  line-height: 50px;
  margin: 76px 0 50px 0;
  text-align: center;
}
.large_case_banner {
  width: 960px;
  height: 540px;
  position: relative;
  overflow: hidden;
  margin: 0 auto;
  border-radius: 15px;
}
.large_case_banner .large_case_img {
  height: 540px;
  position: absolute;
  top: 0 ;
  left: 0;
}
.large_case_banner .large_case_img img {
  float: left;
  width: 960px;
  height: 540px;
  border-radius: 15px;
}
.large_case_banner .large_switch .case_img_left {
  position: absolute;
  top: 250px;
  left: 50%;
  margin-left: -465px;
}
.large_case_banner .large_switch .case_img_right {
  position: absolute;
  top: 250px;
  right: 50%;
  margin-right: -465px;
}
.large_case_title {
  height: 28px;
  font-size: 20px;
  font-weight: 400;
  color: #222222;
  line-height: 28px;
  margin-top: 40px;
  text-align: center;
}
.large_case_txt {
  height: 32px;
  font-size: 16px;
  font-weight: 400;
  color: #646A73;
  line-height: 32px;
  margin: 14px 0 100px 0;
  text-align: center;
}