.wrapper {
  max-width: 1280px;
}

.tech_area {
  margin-top: 60px;
}

.tech_title {
  font-size: 42px;
  color: rgb(48, 133, 58);
  text-shadow: 1.5px 2.598px 1.96px rgba(0, 46, 13, 0.16);
  position: relative;
}

.tech_title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 30px;
  background-color: rgb(203, 220, 198);
  opacity: 0.302;
  width: 485px;
  height: 34px;
  z-index: -1;
}

.tech_system {
  width: 485px;
  margin-top: 48px;
  margin-left: 30px;
  position: relative;
}

.tech_name {
  font-size: 20px;
  color: rgb(51, 51, 51);
  line-height: 1.8;
  text-align: right;
  font-weight: 400;
}

.tech_system::before {
  content: "";
  position: absolute;
  height: 1px;
  width: 30px;
  background-color: rgb(48, 133, 58);
  width: 80px;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.tech {
  position: relative;
  width: 100%;
  margin-bottom: 30px;
}

.tech02 {
  background: url(../images/tech/tech02.png) no-repeat;
  width: 100%;
}

.pic {
  overflow: hidden;
  position: relative;
  height: auto;
  cursor: pointer;
}

.bgimg {
  width: 100%;
}

.upimg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  transition: all 0.5s;
}

.pic:hover .upimg {
  transform: scale(1.05);
}

.core_list {
  display: flex;
  height: 944px;
}

.core_list li {
  width: 33.33%;
}

.core_list li:nth-child(2) {
  align-self: flex-end;
}

.core_box {
  padding: 0 40px;
  padding-top: 100px;
  height: 844px;
  border-left: 1px solid #ffffff;
  display: flex;
  flex-direction: column;
}

.core_list li:nth-child(2) .core_box {
  flex-direction: column-reverse;
  padding-top: 0px;
  padding-bottom: 100px;
}

.core_title {
  font-size: 31.353px;
  font-weight: 600;
  color: rgb(255, 255, 255);
  line-height: 1.148;
  text-shadow: 0px 4px 3.96px rgba(9, 27, 3, 0.2);
  margin-top: 40px;
  display: flex;
  align-items: center;
  height: 145px;
}

.core_list li:nth-child(1) .core_title {
  background: url(../images/tech/01.png) no-repeat;
}

.core_list li:nth-child(2) .core_title {
  background: url(../images/tech/02.png) no-repeat;
  margin-top: 0;
  margin-bottom: 40px;
}

.core_list li:nth-child(3) .core_title {
  background: url(../images/tech/03.png) no-repeat;
}

.tech03 {
  background: url(../images/tech/dian.png) no-repeat 95% top;
  margin-top: 100px;
}

.tech_play {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.concept {
  display: flex;
}

.concept_title {
  color: rgb(51, 51, 51);
  font-size: 36px;
  font-weight: 600;
  position: relative;
  margin-bottom: 90px;
}

.concept_right {
  margin-left: auto;
  align-self: flex-end;
}

.concept_title::after {
  content: "";
  right: 0;
  bottom: -30px;
  position: absolute;
  background-color: rgb(48, 133, 58);
  width: 240px;
  height: 1px;
}

.concept_desc {
  font-size: 18px;
  color: rgb(51, 51, 51);
  line-height: 2;
  text-indent: 2em;
  margin-top: 50px;
}

.tech04 {
  background: url(../images/tech/tech04.png) no-repeat;
}

.advantage_title {
  color: rgb(51, 51, 51);
  font-size: 36px;
  font-weight: 600;
  position: relative;
  margin-bottom: 60px;
}

.advantage_title::after {
  content: "";
  left: 0;
  bottom: -30px;
  position: absolute;
  background-color: rgb(48, 133, 58);
  width: 240px;
  height: 1px;
}

.advantage {
  margin-top: 80px;
  padding-top: 20px;
  display: flex;
}

.advantage_desc {
  font-size: 18px;
  color: rgb(51, 51, 51);
  line-height: 2;
  margin-bottom: 60px;
}

.advantage_info {
  color: rgb(102, 102, 102);
  font-size: 16px;
  line-height: 1.5;
}

.advantage_list {
  padding: 0 30px;
  display: flex;
  flex-wrap: wrap;
  margin-top: 80px;
}

.advantage_box {
  width: 33.33%;
  margin-bottom: 70px;
}

.advantage_box .timer {
  font-size: 48px;
  color: rgb(48, 133, 58);
  line-height: 1.2;
}

.advantage_box .unit {
  color: rgb(102, 102, 102);
  font-size: 12px;
  line-height: 2;
}

.advantage_info {
  color: rgb(102, 102, 102);
  font-size: 16px;
  line-height: 1.5;
}

.circle_img {
  display: flex;
  justify-content: flex-end;
  margin-top: 52px;
}

.circle1 {
  position: relative;
}

.circle_item {
  position: absolute;
  width: 140px;
  border-radius: 23px;
  background-color: rgb(152, 188, 157);
  box-shadow: 0px 4px 3.96px 0.04px rgba(9, 27, 3, 0.2);
  height: 48px;
  font-size: 20px;
  color: rgb(255, 255, 255);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.circle_item:hover {
  background-color: rgb(48, 133, 58);
}

.circle_item:nth-child(2) {
  left: 128px;
  top: 117px;
}

.circle_item:nth-child(3) {
  left: 55px;
  top: 369px;
}

.circle_item:nth-child(4) {
  left: 408px;
  top: 280px;
}

.tech05 {
  margin-top: 100px;
}

.tech05 .wrapper {
  max-width: 1440px;
}

.xinghao {
  display: flex;
  align-items: center;
  justify-content: center;
  border-width: 4px;
  border-color: rgb(48, 133, 58);
  border-style: solid;
  width: 337px;
  height: 71px;
  border-radius: 37px;
  font-weight: 400;
  font-size: 30px;
  color: #30853a;
  margin: 0 auto;
  margin-top: 70px;
}

.technology {
  display: flex;
}

.technology_right,
.technology_left {
  width: 50%;
}

.xinghao:hover {
  background-color: rgb(48, 133, 58);
  color: #ffffff;
}

.left_box {
  display: flex;
}

.line {
  width: 1px;
  height: 80px;
  background: #1a6823;
  position: relative;
}

.line::before {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: -40px;
  color: rgb(48, 133, 58);
  font-size: 24px;
  font-weight: 500;
}

.technology_list li:nth-child(1) .line::before {
  content: "①";
}

.technology_list li:nth-child(2) .line::before {
  content: "②";
}

.technology_list li:nth-child(3) .line::before {
  content: "③";
}

.technology_list li:nth-child(4) .line::before {
  content: "④";
}

.technology_list li:nth-child(5) .line::before {
  content: "⑤";
}

.technology_desc {
  font-size: 18px;
  font-weight: 400;
  color: #333333;
  line-height: 28px;
  margin-left: 30px;
  padding-top: 10px;
}

.technology_box {
  display: flex;
}

.technology_list li {
  margin-top: 50px;
}

.tech06 {
  margin-top: 100px;
  background: url(../images/tech/tech06.png) no-repeat center;
  padding-top: 100px;
}

.case_desc {
  padding: 0 40px;
  font-size: 18px;
  font-weight: 400;
  color: #333333;
}

.fanwei {
  font-size: 20px;
  font-weight: 400;
  font-style: italic;
  color: #30853a;
  margin-right: 30px;
}

.case_area {
  padding: 40px;
  background-color: #ffffff;
  box-shadow: 0px 4px 3.96px 0.04px rgba(9, 27, 3, 0.2);
}

.case_company {
  font-size: 24px;
  font-weight: 400;
  color: #000000;
}

.case_box {
  display: flex;
  align-items: center;
  max-width: 980px;
  margin: 0 auto;
}

.case_info {
  font-size: 18px;
  font-weight: 400;
  color: #333333;
  line-height: 40px;
}

.shui {
  text-decoration: underline;
  color: #30853a;
}

.case_box .pic {
  flex-shrink: 0;
}

.case_list.owl-theme .owl-nav .owl-prev,
.case_list.owl-theme .owl-nav .owl-next {
  width: 64px;
  height: 64px;
  top: 50%;
  transform: translateY(-50%);
  text-indent: 100px;
  overflow: hidden;
  padding: 0;
  margin: 0;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  filter: Alpha(Opacity=100);
  opacity: 1;
  transition: all 0.5s;
}

.case_list.owl-theme .owl-nav .owl-prev {
  position: absolute;
  left: 0px;
  background: url(../images/tech/arrow01.png) center no-repeat;
}

.case_list.owl-theme .owl-nav .owl-next {
  position: absolute;
  right: 0px;
  background: url(../images/tech/arrow02.png) center no-repeat;
}

.case_list.owl-theme .owl-nav .owl-prev:hover {
  background: url(../images/tech/arrow01_c.png) center no-repeat;
}

.case_list.owl-theme .owl-nav .owl-next:hover {
  background: url(../images/tech/arrow02_c.png) center no-repeat;
}

.case_module {
  margin: 80px 0 120px;
}

.tech07 {
  background: url(../images/tech/tech07.png) no-repeat bottom;
  padding-bottom: 100px;
}

.honor_module {
  display: flex;
  justify-content: space-between;
  margin-top: 100px;
}

.honor_left {
  width: 500px;
  padding: 35px;
  background: #ffffff;
  box-shadow: 0px 4px 3.96px 0.04px rgba(9, 27, 3, 0.2);
  text-align: center;
}

.honor_right {
  width: calc(100% - 550px);
  display: flex;
  flex-direction: column;
}

.honor_img {
  display: flex;
  justify-content: center;
}

.honor_img img {
  max-height: 160px;
  width: auto !important;
}

.honor_main {
  margin-top: 50px;
  width: calc(100% - 80px);
}

.honor_desc {
  border-radius: 30px;
  background: linear-gradient(214deg, #64aa70, #89bc53);
  width: 612px;
  padding: 50px;
  align-self: flex-end;
  position: relative;
}

.honor_area {
  height: 192px;
  overflow-y: auto;
}

.honor_desc::after {
  content: "";
  position: absolute;
  right: 37px;
  top: 10px;
  background: url(../images/tech/san.svg) no-repeat;
  width: 28px;
  height: 28px;
  background-size: 100%;
}

.honor_info {
  font-size: 20px;
  font-weight: 400;
  color: #ffffff;
  line-height: 48px;
  text-shadow: 0px 4px 4px rgba(11, 37, 2, 0.2);
}

.honor_info .fa {
  margin-right: 20px;
}

.honor_list.owl-theme .owl-nav .owl-prev,
.honor_list.owl-theme .owl-nav .owl-next {
  width: 64px;
  height: 64px;
  top: 50%;
  right: -80px;
  text-indent: 100px;
  overflow: hidden;
  padding: 0;
  margin: 0;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  filter: Alpha(Opacity=100);
  opacity: 1;
  transition: all 0.5s;
}

.honor_list.owl-theme .owl-nav .owl-prev {
  position: absolute;
  margin-top: -80px;
  background: url(../images/tech/arrow01.png) center no-repeat;
}

.honor_list.owl-theme .owl-nav .owl-next {
  position: absolute;

  background: url(../images/tech/arrow02.png) center no-repeat;
}

.honor_list.owl-theme .owl-nav .owl-prev:hover {
  background: url(../images/tech/arrow01_c.png) center no-repeat;
}

.honor_list.owl-theme .owl-nav .owl-next:hover {
  background: url(../images/tech/arrow02_c.png) center no-repeat;
}

.honor_area::-webkit-scrollbar-track {
  display: none;
}

.honor_area::-webkit-scrollbar-track-piece {
  display: none;
}

.honor_area::-webkit-scrollbar {
  background-color: transparent;
  width: 2px;
}

.honor_area::-webkit-scrollbar-thumb {
  border-radius: 1px;
  -webkit-box-shadow: inset 0 0 3px rgba(0, 0, 0, 0.3);
  background-color: #ffffff !important;
}

@media only screen and (max-width: 1440px) {
  .tech05 .wrapper {
    max-width: 1280px;
  }
}

@media only screen and (max-width: 1280px) {
  .tech_title {
    font-size: 32px;
  }

  .tech_area {
    margin-top: 0px;
  }

  .tech_title::after {
    width: 370px;
  }

  .tech_name {
    font-size: 18px;
  }

  .tech_system {
    margin-left: 0;
    width: 400px;
  }

  .tech_system::before {
    width: 40px;
  }

  .core_list {
    height: calc(944px / 1.5);
  }

  .core_box {
    height: calc(844px / 1.5);
    padding: 0 calc(40px / 1.5);
    padding-top: calc(100px / 1.5);
  }

  .core_title {
    margin-top: calc(40px / 1.5);
    font-size: 22px;
    margin-left: 10px;
  }

  .core_list li:nth-child(2) .core_title {
    margin-bottom: calc(40px / 1.5);
  }

  .core_list li:nth-child(2) .core_box {
    padding-bottom: calc(100px / 1.5);
  }

  .tech02 {
    padding: 0 100px;
  }

  .tech03 {
    margin-top: calc(100px / 1.5);
  }

  .concept_desc {
    font-size: 16px;
    margin-top: 30px;
  }

  .advantage {
    margin-top: 40px;
  }

  .advantage_desc {
    font-size: 16px;
  }

  .technology_desc {
    font-size: 16px;
  }

  .xinghao {
    width: calc(337px / 1.5);
    height: calc(71px / 1.5);
    font-size: calc(30px / 1.5);
  }

  .line {
    height: 70px;
  }

  .tech06 {
    margin-top: calc(100px / 1.5);
    padding-top: calc(100px / 1.5);
  }

  .case_module {
    margin: 60px 0 80px;
  }

  .tech07 {
    padding-bottom: calc(100px / 1.5);
  }
}

@media only screen and (max-width: 1152px) {
  .honor_left {
    width: 35%;
  }

  .honor_right {
    width: calc(65% - 30px);
  }
}

@media only screen and (max-width: 1024px) {
  .zhan {
    margin-right: 40px;
  }

  .tech05 {
    margin-top: calc(100px / 1.875);
  }

  .technology_desc {
    font-size: 14px;
    line-height: 24px;
  }

  .line::before {
    font-size: 20px;
    top: -30px;
  }

  .technology_list li {
    margin-top: 35px;
  }

  .concept_left {
    width: 60%;
  }

  .case_box {
    max-width: 800px;
  }

  .case_box .pic {
    flex-basis: 50%;
  }

  .case_area {
    padding: 20px;
  }

  .case_company {
    font-size: 20px;
    margin-bottom: 20px;
  }

  .case_info {
    font-size: 16px;
    line-height: 2;
  }

  .circle_item {
    font-size: 16px;
    width: 120px;
    height: 35px;
  }

  .circle_item:nth-child(2) {
    left: 123px;
    top: 100px;
  }

  .circle_item:nth-child(3) {
    left: 55px;
    top: 325px;
  }

  .circle_item:nth-child(4) {
    left: 327px;
    top: 266px;
  }

  .advantage_box .timer {
    font-size: 40px;
  }

  .advantage_info {
    font-size: 14px;
  }
}

@media only screen and (max-width: 920px) {
  .honor_desc {
    width: auto;
    padding: 20px;
    border-radius: 15px;
  }

  .honor_info {
    font-size: 16px;
    margin-right: 5px;
    line-height: 2;
  }

  .honor_area {
    height: calc(16px * 8);
  }

  .honor_desc::after {
    top: 0;
    right: 12px;
    width: 19px;
    height: 19px;
  }

  .case_box {
    max-width: 720px;
  }

  .honor_list.owl-theme .owl-nav .owl-prev,
  .honor_list.owl-theme .owl-nav .owl-next,
  .case_list.owl-theme .owl-nav .owl-prev,
  .case_list.owl-theme .owl-nav .owl-next {
    background-size: 80%;
  }

  .honor_list.owl-theme .owl-nav .owl-prev:hover,
  .honor_list.owl-theme .owl-nav .owl-next:hover,
  .case_list.owl-theme .owl-nav .owl-prev:hover,
  .case_list.owl-theme .owl-nav .owl-next:hover {
    background-size: 80%;
  }

  .tech_title {
    font-size: 28px;
  }

  .tech_title::after {
    width: 320px;
  }

  .tech_system {
    margin-top: 35px;
    width: 350px;
  }

  .tech_name {
    font-size: 16px;
  }

  .tech02 {
    padding: 0px 50px;
  }

  .honor_module {
    margin-top: 50px;
  }

  .tech07 {
    padding-bottom: 10px;
  }

  .circle_item:nth-child(3) {
    left: 55px;
    top: 300px;
  }

  .circle_item:nth-child(2) {
    left: 100px;
    top: 100px;
  }

  .circle_item:nth-child(4) {
    left: 283px;
    top: 245px;
  }

  .advantage_title,
  .concept_title {
    font-size: 28px;
  }

  .advantage_title::after,
  .concept_title::after {
    width: 160px;
  }

  .case_box {
    max-width: 640px;
  }

  .case_company {
    font-size: 16px;
    margin-bottom: 10px;
  }

  .case_info {
    font-size: 14px;
  }

  .case_module {
    margin: 40px 0;
  }
}

@media only screen and (max-width: 768px) {
  .core_title {
    margin-top: calc(40px / 2);
    font-size: 18px;
  }

  .tech02 {
    padding: 0px;
  }

  .core_list li:nth-child(2) .core_title {
    margin-bottom: calc(40px / 2);
  }

  .concept_desc {
    font-size: 14px;
  }

  .advantage_list {
    padding: 0;
    margin-top: 50px;
  }

  .advantage_box .timer {
    font-size: 30px;
  }

  .advantage_info {
    font-size: 12px;
  }

  .circle_item:nth-child(2) {
    left: 70px;
    top: 80px;
  }

  .circle_item:nth-child(3) {
    left: 30px;
    top: 245px;
  }

  .circle_item:nth-child(4) {
    left: auto;
    right: 0;
    top: 205px;
  }
}

@media only screen and (max-width: 500px) {
  .tech_title {
    font-size: 22px;
  }

  .tech_title::after {
    width: 250px;
    height: 25px;
  }

  .tech_system {
    margin-top: 25px;
    width: 300px;
  }

  .tech_name {
    font-size: 14px;
  }

  .core_list {
    flex-wrap: wrap;
    height: auto;
  }

  .core_list li {
    width: 100%;
    margin-bottom: 20px;
  }

  .core_list li:nth-child(2) {
    align-self: flex-start;
  }

  .core_list li:nth-child(2) .core_title {
    margin-bottom: 0;
    margin-top: calc(40px / 2);
  }

  .core_list li:nth-child(2) .core_box {
    flex-direction: row;
  }

  .core_box {
    height: auto;
    padding-top: 20px;
    flex-direction: row;
  }

  .core_box .pic {
    width: 150px;
  }

  .tech02 {
    background-size: cover;
  }

  .core_list li:nth-child(2) .core_box {
    padding-bottom: 0;
    padding-top: 20px;
  }

  .tech03 {
    margin-top: calc(100px / 2);
  }

  .concept {
    flex-wrap: wrap;
  }

  .concept_left {
    width: 100%;
  }

  .concept_right {
    margin-top: 20px;
    margin-left: 0;
    align-self: flex-start;
  }

  .concept_title::after {
    right: auto;
    left: 0;
  }

  .concept_title {
    margin-bottom: 30px;
  }

  .advantage {
    flex-wrap: wrap;
  }

  .circle_img {
    margin-top: 0;
  }

  .advantage_box {
    margin-bottom: 30px;
  }

  .technology {
    flex-wrap: wrap;
    flex-direction: column-reverse;
  }

  .technology_right,
  .technology_left {
    width: 100%;
  }

  .zhan {
    margin-right: 0px;
  }

  .technology_left {
    margin-top: 20px;
  }

  .tech06 {
    margin-top: 30px;
    padding-top: 30px;
  }

  .case_desc {
    padding: 0;
    font-size: 16px;
    line-height: 1.5;
  }

  .case_box {
    flex-wrap: wrap;
  }

  .case_box .pic {
    flex-basis: 100%;
  }

  .case_list.owl-theme .owl-nav .owl-prev,
  .case_list.owl-theme .owl-nav .owl-next {
    display: none !important;
  }

  .honor_module {
    display: flex;
    flex-wrap: wrap;
  }

  .honor_right,
  .honor_left {
    width: 100%;
  }

  .honor_left {
    display: none;
  }

  .honor_module {
    margin-top: 30px;
  }
}

.advantage_left {
  width: 774px;
}
.advantage_right {
  width: calc(100% -774px);
  padding-left: 30px;
}

.s2-list {
  position: relative;
  width: 100%;
  height: 224px;
}

.s2-list li {
  position: absolute;
  box-sizing: border-box;
  width: 184px;
  height: 84px;
  border: 6px solid #30853a;
  display: flex;
  align-items: center;
  border-radius: 8px;
  padding-left: 15px;
}

.s2-num {
  font-size: 68px;
  font-weight: 700;
  font-family: Arial, Helvetica, sans-serif;
  position: relative;
  margin-right: 15px;
}

.s2-num .num {
  position: relative;
  z-index: 1;
  color: #fff;
  color: rgb(255, 255, 255);
  text-shadow: 4.5px 7.794px 2px rgba(0, 51, 28, 0.16);
  -moz-transform: matrix(0.84075436203433, 0, 0, 0.83604778057975, 0, 0);
  -webkit-transform: matrix(0.84075436203433, 0, 0, 0.83604778057975, 0, 0);
  -ms-transform: matrix(0.84075436203433, 0, 0, 0.83604778057975, 0, 0);
}

.s2-title {
  color: #333;
  font-size: 14px;
  margin-bottom: 8px;
}
.s2-content {
  display: flex;
}
.s2-content-value {
  color: #30853a;
  font-size: 28px;
}
.s2-content-suffix {
  color: #333;
  font-size: 14px;
  line-height: 24px;
  margin-inline-start: 4px;
}

.s2-list li.item1,
.s2-list li.item5 {
  background-color: #fff;
}

.s2-list li.item2,
.s2-list li.item4 {
  background-color: #30853a;
}

.s2-list li.item3,
.s2-list li.item6 {
  background-color: #cbdcc6;
  border-color: #cbdcc6;
}
.s2-list li.item2 .s2-title,
.s2-list li.item4 .s2-title,
.s2-list li.item2 .s2-content-value,
.s2-list li.item4 .s2-content-value,
.s2-list li.item2 .s2-content-suffix,
.s2-list li.item4 .s2-content-suffix {
  color: #fff;
}

.s2-list li.item1 {
  top: 28px;
  left: 0;
}

.s2-list li.item2 {
  top: 140px;
  left: 44px;
}

.s2-list li.item3 {
  top: 64px;
  left: 192px;
}

.s2-list li.item4 {
  top: 0;
  left: 350px;
}

.s2-list li.item5 {
  top: 114px;
  left: 366px;
  width: 228px;
}

.s2-list li.item6 {
  top: 28px;
  right: 0;
  width: 248px;
}

.s2-list li.item6 .num {
  letter-spacing: -10px;
}

@media only screen and (max-width: 1394px) {
  .advantage_left {
    width: 55.5%;
  }
  .advantage_right {
    width: 44.5%;
  }

  .s2-list {
    width: 100%;
    height: 16vw;
  }

  .s2-list li {
    min-width: 13.2vw;
    height: 6vw;
    border-width: 0.4vw;
    padding: 0 1vw;
    width: auto !important;
  }
  .s2-num {
    margin-right: 1vw;
    font-size: 4.8vw;
  }

  .s2-title {
    font-size: 1vw;
  }
  .s2-content-value {
    font-size: 2vw;
  }
  .s2-content-suffix {
    font-size: 1vw;
  }

  .s2-list li.item1 {
    top: 10%;
  }

  .s2-list li.item2 {
    top: 62.5%;
    left: 5.6%;
  }

  .s2-list li.item3 {
    top: 28.5%;
    left: 24.8%;
  }

  .s2-list li.item4 {
    left: 45.2%;
  }

  .s2-list li.item5 {
    left: 47.6%;
    top: 50.9%;
    width: auto;
  }

  .s2-list li.item6 {
    top: 12.5%;
    right: auto;
    left: 67.8%;
    width: auto;
  }
}

.tech_system {
  margin-bottom: -12vw;
}
@media only screen and (max-width: 768px) {
  .tech_system {
    margin-bottom: -20px;
  }
  .advantage_left,
  .advantage_right {
    width: 100%;
  }

  .s2-list {
    width: 100%;
    box-sizing: border-box;
    height: auto;
    margin-bottom: 40px;
  }

  .s2-list img {
    width: 100%;
    height: auto;
  }
}