#banner {
  position: relative;
}

#banner li {}

#banner li a {
  display: block;
}

#banner li .imgs {
  display: block;
}

#banner li .imgs img {
  width: 100%;
  min-height: 240px;
  object-fit: cover;
}

#banner .hi {
  display: none;
}

#banner .swiper-pagination {
  bottom: 5.3%;
}

#banner .swiper-pagination-bullet {
  width: 50px;
  height: 6px;
  background-color: #ffffff;
  opacity: 0.3;
  margin: 0 10px;
  border-radius: 0;
}

#banner .swiper-pagination-bullet:hover {
  background-color: var(--dth-color);
}

#banner .swiper-pagination-bullet.swiper-pagination-bullet-active {
  background-color: var(--dth-color);
  opacity: 1;
}

/* @media (min-width: 1201px) {
  #banner li .imgs img,
  .banner_video {
    height: 100vh;
    padding-top: 0;
    min-height: auto;
  }
} */
@media (max-width: 1560px) {}

@media (max-width: 1400px) {
  #banner .swiper-pagination-bullet {
    height: 5px;
    width: 42px;
  }
}

@media (max-width: 1200px) {
  #banner li .imgs img {
    min-height: 220px;
  }

  #banner .swiper-pagination-bullet {
    height: 4px;
    width: 36px;
    margin: 0 8px;
  }
}

@media (max-width: 990px) {
  #banner li .imgs img {
    min-height: 200px;
  }

  #banner .swiper-pagination-bullet {
    width: 30px;
    margin: 0 7px;
  }
}

@media (max-width: 768px) {}

@media (max-width: 640px) {
  #banner li .imgs img {
    min-height: 170px;
  }

  #banner .swiper-pagination {
    bottom: 12px;
  }

  #banner .swiper-pagination-bullet {
    width: 24px;
    height: 3px;
    margin: 0 6px;
  }
}


/* 热门-搜索 */
.hot_search {
  background-color: #f5f5f5;
  padding: 12px 0;
}

.hot_search .ky_wh {
  align-items: center;
  justify-content: space-between;
}

.hot {
  font-size: 16px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 46px;
  letter-spacing: 0px;
  color: var(--dth-color);
}

.hot a {
  font-size: 15px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 46px;
  letter-spacing: 0px;
  color: #666666;
  margin-right: 1em;
}

.hot a:hover {
  color: var(--dth-color);
}

.search {
  width: 320px;
}

.search #formsearch1 {
  width: 100%;
}

.search #formsearch1 input {
  outline: none;
  border: none;
  background: none;
  height: 46px;
}

.search #formsearch1 input#keyword1 {
  width: calc(100% - 56px);
  background-color: #ffffff;
  font-size: 15px;
  font-weight: normal;
  letter-spacing: 0px;
  color: #333333;
  padding: 0 1.2em;
}

.search #formsearch1 input#keyword1::placeholder {
  color: #b5b5b5;
}

.search #formsearch1 input#s_btn1 {
  width: 56px;
  background-color: var(--dth-color);
  background-repeat: no-repeat;
  background-position: center;
  background-size: auto calc(30 / 46 * 100%);
  background-image: url("../images/icon-search.png");
}


@media (max-width: 1560px) {}

@media (max-width: 1400px) {
  .hot_search {
    padding: 10px 0;
  }

  .hot {
    font-size: 15px;
  }

  .hot a {
    font-size: 14px;
  }

  .search {
    width: 300px;
  }

  .search #formsearch1 input {
    height: 42px;
  }

  .search #formsearch1 input#keyword1 {
    font-size: 14px;
  }
}

@media (max-width: 1200px) {
  .hot {
    font-size: 14px;
  }

  .hot a {
    font-size: 13px;
  }

  .search {
    width: 280px;
  }

  .search #formsearch1 input {
    height: 40px;
  }
}

@media (max-width: 990px) {
  .hot_search {
    display: none;
  }
}



.fixed_ratio {
  position: relative;
  overflow: hidden;
  padding-top: calc(3 / 4 * 100%);
}
.fixed_ratio img {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.clearboth {
  width: 100%;
  clear: both;
  display: block;
}
.enlarge .imgs {
  overflow: hidden;
  position: relative;
}

.enlarge .imgs img {
  transform: scale(1);
  transition: 0.5s ease;
}

.enlarge:hover .imgs img {
  transform: scale(1.08);
}


.titles {
  position: relative;
}
.center {
  text-align: center;
}
.titles h2 {
  font-size: 44px;
	font-weight: bold;
	font-stretch: normal;
	line-height: 1.5;
	letter-spacing: 0px;
	color: #000000;
  margin: 0;
}
.titles h2 span {
	color: var(--dth-color);
}
.lins {
  position: absolute;
  left: -1em;
  top: calc(0.75em - 5px);
  width: 9px;
  height: 9px;
  display: block;
  background-color: var(--dth-color);
}
.lins::before {
  content: "";
  display: block;
  position: absolute;
  right: 100%;
  height: 1px;
  background-color: inherit;
  width: 100vw;
  top: 4px;
}
.titles h4 {
  font-size: 18px;
	font-weight: normal;
	font-stretch: normal;
	line-height: 1.5;
	letter-spacing: 0px;
	color: #333333;
  margin-top: 0.3em;
  margin-bottom: 0;
}
.btline {
  display: block;
	width: 68px;
	height: 3px;
	background-color: var(--dth-color);
	border-radius: 2px;
  margin: 1.8% auto 0;
  position: relative;
}
.btline::before {
  content: "";
  display: block;
  margin: 0 auto;
  border-radius: 50%;
	width: 10px;
	height: 10px;
	background-color: #de7e22;
  position: absolute;
  left: calc(50% - 5px);
  top: calc(50% - 5px);
}


.titles.white h2 {
  color: #ffffff;
}
.titles.white h4 {
  color: #ffffff;
}
.titles.white .btline {
  background-color: #ffffff;
}

@media (max-width: 1560px) {
  .titles h2 {
    font-size: 2.8vw;
  }
  .titles h4 {
    font-size: 17px;
  }
}
@media (max-width: 1400px) {
  .titles h4 {
    font-size: 16px;
  }
}
@media (max-width: 1200px) {
  .titles h2 {
    font-size: 32px;
  }
  .titles h4 {
    font-size: 15px;
  }
  .btline {
    margin-top: 16px;
    width: 64px;
  }
}
@media (max-width: 990px) {
  .titles h2 {
    font-size: 28px;
  }
  .btline {
    margin-top: 14px;
    width: 56px;
    height: 2px;
  }
  .btline::before {
    width: 8px;
    height: 8px;
    left: calc(50% - 4px);
    top: calc(50% - 4px);
  }
}
@media (max-width: 768px) {
}
@media (max-width: 640px) {
  .titles h2 {
    font-size: 24px;
  }
  .titles h4 {
    font-size: 14px;
  }
  .btline {
    margin-top: 12px;
    width: 45px;
  }
}


.assembly {
  padding: 5.4% 0 6%;
  overflow: hidden;
}

.assembly .ky_wh {
  justify-content: space-between;
}

.assembly_left {
  width: 48.3%;
}

.assembly_tit {
  font-size: 36px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 1.28;
  letter-spacing: 0px;
  color: #191f26;
  margin: 0;
}

.assembly_text {
  font-size: 18px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.89;
  letter-spacing: 0px;
  color: #323c49;
  text-align: justify;
  margin-top: 1.1em;
}

.assembly_text p {
  margin-bottom: 0;
}

.assembly_uls {
  margin-top: 11%;
}

.assembly_uls ul {
  justify-content: flex-start;
}

.assembly_uls li {
  margin-right: 6.6%;
  position: relative;
  z-index: 10;
}

.assembly_uls li::before {
  content: "";
  width: calc(183 / 112 * 100%);
  height: calc(164 / 112 * 100%);
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  background-image: url("../images/aboutyy.png");
}

.assembly_uls li:last-child {
  margin-right: 0;
}

.assembly_uls li a {
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  border-radius: 10px;
  border: dashed 1px #e3e3e3;
  width: 112px;
  height: 112px;
  position: relative;
  z-index: 20;
}

.assembly_uls li:hover a {
  border-color: var(--dth-color);
  background-color: var(--dth-color);
}

.assembly_uls li .imgs {
  width: 40px;
  height: 40px;
  position: relative;
}

.assembly_uls li .imgs img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.assembly_uls li .imgs img:last-child {
  position: absolute;
  left: 0;
  top: 0;
  visibility: hidden;
  opacity: 0;
}

.assembly_uls li:hover .imgs img:first-child {
  visibility: hidden;
  opacity: 0;
}

.assembly_uls li:hover .imgs img:last-child {
  visibility: visible;
  opacity: 1;
}

.assembly_uls li h4 {
  display: block;
  text-align: center;
  font-size: 15px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.5;
  letter-spacing: 0px;
  color: #191f26;
  margin-top: 0.8em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 0;
}

.assembly_uls li:hover h4 {
  color: #ffffff;
}

.assembly_right {
  width: 43.74%;
}




@keyframes circleChange {
  0% {
    transform: scale(1);
    opacity: 0.05;
  }

  25% {
    transform: scale(1.3);
    opacity: 0.1;
  }

  50% {
    transform: scale(1.6);
    opacity: 0.2;
  }

  75% {
    transform: scale(1.9);
    opacity: 0.1;
  }

  100% {
    transform: scale(2.2);
    opacity: 0;
  }
}



@media (max-width: 1560px) {
  .assembly {}

  .assembly_tit {
    font-size: 2.3vw;
  }

  .assembly_text {
    font-size: 17px;
  }
}

@media (max-width: 1400px) {
  .assembly_text {
    font-size: 16px;
  }

  .assembly_uls li a {
    width: 8vw;
    height: 8vw;
  }

  .assembly_uls li .imgs {
    width: 2.57vw;
    height: 2.57vw;
  }

  .assembly_uls li h4 {
    font-size: 14px;
  }
}

@media (max-width: 1200px) {
  .assembly {
    padding: 50px 0;
  }

  .assembly_tit {
    font-size: 27px;
  }

  .assembly_text {
    font-size: 15px;
  }

  .assembly_uls {
    margin-top: 30px;
  }

  .assembly_uls li a {
    width: 90px;
    height: 90px;
  }

  .assembly_uls li .imgs {
    width: 30px;
    height: 30px;
  }
}

@media (max-width: 990px) {
  .assembly {
    padding: 30px 0 40px;
  }

  .assembly .dth_wh {
    flex-flow: column-reverse;
  }

  .assembly_left {
    width: 100%;
    margin-top: 20px;
  }

  .assembly_tit {
    font-size: 24px;
  }

  .assembly_right {
    width: 100%;
  }
}

@media (max-width: 768px) {}

@media (max-width: 640px) {
  .assembly {
    padding: 20px 0 36px;
  }

  .assembly_uls {
    margin-top: 24px;
  }

  .assembly_uls ul {
    flex-wrap: wrap;
    justify-content: space-around;
  }

  .assembly_uls li:nth-child(n+1) {
    width: 36vw;
    margin-right: 0;
  }

  .assembly_uls li:nth-child(n+3) {
    margin-top: 8%;
  }

  .assembly_uls li a {
    width: 36vw;
    height: 36vw;
  }

  .assembly_uls li .imgs {
    width: 36px;
    height: 36px;
  }
}



/* 产品中心 */
.product {
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  /* padding: 56px 0 86px; */
  padding: 56px 0 4.5%;
}

.product_uls {
  margin-top: 3.2%;
  /* margin-top: 48px; */
  padding: 0 30px;
}

.product_uls ul {
  flex-wrap: wrap;
}

.product_uls li {
  width: 24%;
  margin-right: calc(4% / 3);

}

.product_uls li:nth-child(4n) {
  margin-right: 0;
}

.product_uls li:nth-child(n+5) {
  margin-top: 1.35%;
}

.product_uls li a {
  display: block;
  padding: 12px 12px 4px;
  background-color: #ffffff;
  border: solid 1px #ebebeb;
  transition: 0.3s ease;
}

.product_uls li .imgs {
  padding-top: calc(424 / 424 * 100%);
}

.product_uls li .text {
  text-align: center;
  padding: 5.2% 4%;
}

.product_uls li .text h4 {
  font-size: 18px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 1.5;
  letter-spacing: 0px;
  color: #333333;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: 0.3s ease;
  margin: 0;
}

.product_uls li:hover a {
  border-color: #bfdff3;
  filter: drop-shadow(0 0 10px rgba(0, 115, 187, 0.05));
  transform: translateY(-5px);
}

.product_uls li:hover .text h4 {
  color: var(--dth-color);
}

@media (max-width: 1560px) {
  .product {
    padding: 3.5% 0 4.5%;
  }
}

@media (max-width: 1400px) {
  .product_uls {
    padding: 0 24px;
  }

  .product_uls li a {
    padding: 10px 10px 4px;
  }

  .product_uls li .text h4 {
    font-size: 17px;
  }
}

@media (max-width: 1200px) {
  .product {
    padding: 42px 0 50px;
  }

  .product_uls {
    margin-top: 30px;
    padding: 0 15px;
  }

  .product_uls li:nth-child(n+1) {
    width: 32%;
    margin-right: 2%;
  }

  .product_uls li:nth-child(n+4) {
    margin-top: 2%;
  }

  .product_uls li:nth-child(3n) {
    margin-right: 0%;
  }

  .product_uls li:nth-child(n+7) {
    display: none;
  }
}

@media (max-width: 990px) {
  .product {
    padding: 36px 0 45px;
  }

  .product_uls {
    margin-top: 24px;
  }

  .product_uls li .text h4 {
    font-size: 16px;
  }
}

@media (max-width: 768px) {}

@media (max-width: 640px) {
  .product {
    padding: 32px 0;
  }

  .product_uls ul {
    justify-content: space-between;
  }

  .product_uls li:nth-child(n+1) {
    width: 48.5%;
    margin-right: 0;
  }

  .product_uls li:nth-child(n+3) {
    margin-top: 3%;
  }

  .product_uls li a {
    padding: 5px 5px 2px;
  }

  .product_uls li .text h4 {
    font-size: 15px;
  }
}

@media (max-width: 370px) {
  .product_uls li:nth-child(n+1) {
    width: 100%;
  }

  .product_uls li:nth-child(n+2) {
    margin-top: 12px;
  }
}

/* 应用案例 */
.case {
  /* padding: 74px 0 105px; */
  padding: 3.8% 0 5.4%;
}

.case_cont {
  justify-content: space-between;
  align-items: unset;
  margin-top: 3.3%;
}

.case_left {
  /* width: calc(1054 / 1500 * 100%); */
  flex-grow: 1;
  position: relative;
}

.case_left ul {
  height: 100%;
}

.case_left li {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  visibility: hidden;
  opacity: 0;
  transition: 0.3s ease;
}

.case_left li.curs {
  position: relative;
  z-index: 20;
  visibility: visible;
  opacity: 1;
}

.case_left li a {
  height: 100%;
}

.case_left li .imgs {
  padding-top: calc(604 / 1054 * 100%);
  width: 100%;
  height: 100%;
}

.case_left li .imgs {}

.case_tel {
  background-color: #eeeeee;
  padding: 4.5% 6.5%;
  justify-content: flex-start;
  align-items: center;
}

.case_tel_tis {
  font-size: 18px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.34;
  letter-spacing: 0px;
  color: #666666;
  padding-left: 4.2em;
  text-align: center;
  padding-right: 1em;
  border-right: 1px solid rgba(0, 0, 0, 0.1);
  width: 7.4em;
  margin-right: 1.3em;
  flex-shrink: 0;
  position: relative;
}

.case_tel_tis::before {
  content: "";
  display: block;
  width: 3.2em;
  height: 3.2em;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-1.6em);
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  background-image: url("../images/icon-tel.png");
  background-color: var(--dth-color);
  border-radius: 50%;
}

.case_tel .tel {
  font-family: Heebo, Arial, Helvetica, sans-serif;
  font-size: 30px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 1.1;
  letter-spacing: 0px;
  color: var(--dth-color);
}

.case_tel .tel p {
  margin-bottom: 0;
}

.case_right {
  /* width: 29.7%; */
  width: 446px;
}

.case_right_lis {}

.case_right_lis li {}

.case_right_lis li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #f9f9f9;
  /* padding: 22px; */
  padding: 4.7%;
  border-bottom: 2px solid #eeeeee;
  position: relative;
  transition: 0.3s ease;
}

.case_right_lis li a::before {
  content: "";
  display: block;
  position: absolute;
  right: 100%;
  top: 50%;
  background-color: transparent;
  border-top: 19px solid transparent;
  border-bottom: 19px solid transparent;
  border-right: 18px solid var(--dth-color);
  margin-top: -19px;
  z-index: 30;
  visibility: hidden;
  opacity: 0;
  transition: 0.3s ease;
}

.case_right_lis li:last-child a {
  border-bottom: none;
}

.case_right_lis li.curs a {
  background-color: var(--dth-color);
}

.case_right_lis li.curs a::before {
  visibility: visible;
  opacity: 1;
}

.case_right_lis li .text {
  flex-grow: 1;
  text-align: right;
}

.case_right_lis li .text h3 {
  font-size: 20px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.5;
  letter-spacing: 0px;
  color: #333333;
  transition: 0.3s ease;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin: 0;
}

.case_right_lis li.curs h3 {
  color: #ffffff;
}

.case_right_lis li .text h5 {
  font-size: 15px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.5;
  letter-spacing: 0px;
  color: #888;
  margin-top: 0.34em;
  transition: 0.3s ease;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.case_right_lis li.curs h5 {
  color: #ffffff;
}

.case_right_lis li .imgs {
  width: 140px;
  flex-shrink: 0;
  border: solid 1px #ffffff;
  margin-left: 8%;
}

.case_right_lis li .imgs .fixed_ratio {
  padding-top: calc(604 / 1054 * 100%);
}

.case_right_lis li .imgs img {}


@media (max-width: 1560px) {
  .case_right {
    width: 28.5vw;
  }

  .case_right_lis li .imgs {
    width: 8.98vw;
  }

  .case_tel_tis {
    font-size: 1.1vw;
  }

  .case_tel .tel {
    font-size: 1.9vw;
  }
}

@media (max-width: 1400px) {
  .case_right {
    width: 400px;
  }

  .case_right_lis li a::before {
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    border-right: 12px solid var(--dth-color);
    margin-top: -12px;
  }

  .case_right_lis li .text h3 {
    font-size: 18px;
  }

  .case_right_lis li .text h5 {
    font-size: 14px;
  }

  .case_right_lis li .imgs {
    width: 124px;
  }

  .case_tel_tis {
    font-size: 16px;
  }

  .case_tel .tel {
    font-size: 24px;
  }
}

@media (max-width: 1200px) {
  .case {
    padding: 42px 0 50px;
  }

  .case_cont {
    margin-top: 30px;
  }

  .case_right {
    width: 380px;
  }

  .case_right_lis li a {
    padding: 3%;
  }
}

@media (max-width: 990px) {
  .case {
    padding: 36px 0 40px;
  }

  .case_cont {
    flex-flow: column;
  }

  .case_left {
    width: 100%;
  }

  .case_right {
    width: 100%;
  }

  .case_right_lis ul {
    display: flex;
    align-items: unset;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .case_right_lis li {
    width: 50%;
  }

  .case_right_lis li a {
    flex-direction: row-reverse;
    justify-content: flex-start;
  }

  .case_right_lis li .imgs {
    margin-left: 0;
    margin-right: 5%;
  }

  .case_right_lis li a::before {
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-bottom: 12px solid var(--dth-color);
    border-top: none;
    left: 50%;
    margin-top: 0;
    margin-left: -12px;
    top: -12px;
  }

  .case_tel {
    padding: 20px;
  }
}

@media (max-width: 768px) {}

@media (max-width: 640px) {
  .case {
    padding: 32px 0;
  }

  .case_cont {
    margin-top: 24px;
  }

  .case_right_lis li {
    width: 100%;
  }

  .case_right_lis li .text h3 {
    font-size: 16px;
  }

  .case_right_lis li .text h5 {
    font-size: 13px;
  }

  .case_tel {
    padding: 10px;
  }

  .case_tel_tis {
    width: 6.8em;
    font-size: 14px;
    padding-left: 3.6em;
  }

  .case_tel_tis::before {
    width: 3em;
    height: 3em;
    transform: translateY(-1.5em);
  }
}

/* 完善服务 */
.service {
  /* padding: 62px 0 105px; */
  padding: 3.2% 0 5.4%;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.service_uls {
  margin-top: 4.1%;
}

.service_uls ul {
  justify-content: space-between;
  align-items: unset;
}

.service_uls li {
  width: 23%;
  max-width: 340px;
  cursor: pointer;
}

.service_uls li a {
  display: block;
  height: 100%;
  background-color: #ffffff;
  border-radius: 20px;
  overflow: hidden;
  padding: 12.9% 11.6% 13.8%;
  transition: 0.5s ease;
}

.service_uls li:hover a {
  transform: translateY(-8px);
}

.service_uls li .imgs {
  width: 120px;
  margin: 0 auto;
}

.service_uls li .imgs .fixed_ratio {
  padding-top: calc(135 / 120 * 100%);
}

.service_uls li .imgs img {
  object-fit: contain;
}

.service_uls li .text {
  text-align: center;
}

.service_uls li .text h4 {
  font-size: 28px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 1.5;
  letter-spacing: 0px;
  color: #191f26;
  margin-top: 0.64em;
  transition: 0.5s ease;
  margin-bottom: 0;
}

.service_uls li:hover .text h4 {
  color: var(--dth-color);
}

.service_uls li .text .sums {
  font-size: 17px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.64;
  letter-spacing: 0px;
  color: #5c5c5c;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  margin-top: 0.82em;
}


@media (max-width: 1560px) {
  .service_uls li {}

  .service_uls li .imgs {
    width: 7.7vw;
  }

  .service_uls li .text h4 {
    font-size: 1.8vw;
  }

  .service_uls li .text .sums {
    font-size: 16px;
  }
}

@media (max-width: 1400px) {
  .service_uls li a {
    padding: 10%;
  }

  .service_uls li .text .sums {
    font-size: 15px;
  }
}

@media (max-width: 1200px) {
  .service {
    padding: 36px 0 50px;
  }

  .service_uls {
    margin-top: 36px;
  }

  .service_uls ul {
    flex-wrap: wrap;
  }

  .service_uls li {
    width: 49%;
    max-width: 100%;
  }

  .service_uls li:nth-child(n+3) {
    margin-top: 2%;
  }

  .service_uls li a {
    padding: 24px 15px 20px;
  }

  .service_uls li .imgs {
    width: 90px;
  }

  .service_uls li .text h4 {
    font-size: 20px;
  }
}

@media (max-width: 990px) {
  .service_uls {
    margin-top: 32px;
  }

  .service_uls li .text .sums {
    font-size: 14px;
  }
}

@media (max-width: 768px) {}

@media (max-width: 640px) {
  .service {
    padding: 32px 0 36px;
  }

  .service_uls li {
    width: 100%;
  }

  .service_uls li:nth-child(n+2) {
    margin-top: 15px;
  }

  .service_uls li .imgs {
    width: 72px;
  }
}


/* 新闻中心 */
.news {
  padding: 74px 0 80px;
}

.news_top {
  margin-top: 3.2%;
  position: relative;
  background-color: #ffffff;
  box-shadow: 0 0 20px 20px rgba(0, 0, 0, 0.02);
  background-image: url("../images/nbg.jpg");
  background-repeat: no-repeat;
  background-position: right bottom;
  background-size: cover;
}

.news_top li {}

.news_top li a {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 2% 1.86%;
}

.news_top li .imgs {
  width: 490px;
}

.news_top li .imgs .fixed_ratio {
  padding-top: calc(292 / 490 * 100%);
}

.news_top li .text {
  width: calc(93.7% - 490px);
  margin-right: 1.0%;
  padding-top: 2%;
}

.news_top li .text h4 {
  font-size: 24px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 1.5;
  letter-spacing: 0px;
  color: #191f26;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: 0.3s ease;
  margin: 0;
}

.news_top li:hover .text h4 {
  color: var(--dth-color);
}

.news_top li .text .sums {
  font-size: 16px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.75;
  letter-spacing: 0px;
  color: #888888;
  text-align: justify;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  margin-top: 0.75em;
}

.news_top li .text .btns {
  font-size: 14px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 2.6;
  letter-spacing: 0px;
  color: #ffffff;
  display: block;
  width: 8.14em;
  background-color: var(--dth-color);
  border-radius: 0.14em;
  text-align: center;
  margin-top: 4.6%;
}

/* .news_top li:hover .text .btns {
  background-color: #009bff;
} */
.news_top .swiper-pagination {
  bottom: 16%;
  width: calc(88% - 490px);
  left: calc(490px + 6.3%);
  justify-content: flex-start;
}

.news_top .swiper-pagination .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background-color: #cdcdcd;
  margin: 0 8px;
  opacity: 1;
}

.news_top .swiper-pagination .swiper-pagination-bullet:hover,
.news_top .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active {
  background-color: var(--dth-color);
}

.news_bot {
  margin-top: 3.2%;
}

.news_bot ul {
  justify-content: space-between;
}

.news_bot li {
  width: 31.4%;
}

.news_bot li a {
  display: block;
  background-color: #ffffff;
  border: solid 1px #f0f0f0;
  transition: 0.3s ease;
}

.news_bot li:hover a {
  border-color: #d4e7f3;
}

.news_bot li .text {
  padding: 7.2% 6.4% 7.5%;
}

.news_bot li h4 {
  font-size: 20px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 1.5;
  letter-spacing: 0px;
  color: #191f26;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: 0.3s ease;
  margin: 0;
}

.news_bot li .sums {
  font-size: 15px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 1.72;
  letter-spacing: 0px;
  color: #888888;
  height: 5.16em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  margin-top: 1em;
}

.news_bot li .tims_jt {
  background-color: #f0f0f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: ArialMT;
  font-size: 15px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 2;
  letter-spacing: 0px;
  color: #191f26;
  padding: 0.85em 6.4%;
  transition: 0.3s ease;
  margin: -1px;
}

.news_bot li .tims_jt p {
  margin: 0;
}

.news_bot li .tims_jt .jt {
  width: 1.6em;
  height: 1em;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  background-image: url("../images/jt.png");
  transition: 0.3s ease;
}

.news_bot li:hover h4 {
  color: var(--dth-color);
}

.news_bot li:hover .tims_jt {
  background-color: var(--dth-color);
  color: #ffffff;
}

.news_bot li:hover .tims_jt .jt {
  background-image: url("../images/jt2.png");
}

@media (max-width: 1560px) {
  .news {
    padding: 4.7vw 0 5vw;
  }
}

@media (max-width: 1400px) {
  .news_top li .imgs {
    width: 460px;
  }

  .news_top li .text {
    width: calc(93.7% - 460px);
  }

  .news_top li .text h4 {
    font-size: 22px;
  }

  .news_top .swiper-pagination {
    width: calc(88% - 460px);
    left: calc(460px + 6.3%);
  }

  .news_bot li h4 {
    font-size: 18px;
  }

  .news_top li .text .sums {
    font-size: 15px;
  }

  .news_top li .text .btns {
    font-size: 13px;
  }

  .news_bot li .tims_jt {
    font-size: 14px;
  }
}

@media (max-width: 1200px) {
  .news {
    padding: 45px 0 50px;
  }

  .news_top li .imgs {
    width: 420px;
  }

  .news_top li .text {
    width: calc(95% - 420px);
  }

  .news_top .swiper-pagination {
    width: calc(90% - 420px);
    left: calc(420px + 5%);
    bottom: 10%;
  }

  .news_bot li .text {
    padding: 15px;
  }

  .news_top li .text h4 {
    font-size: 20px;
  }
}

@media (max-width: 990px) {
  .news {
    padding: 42px 0 45px;
  }

  .news_top li a {
    flex-flow: column;
    padding: 15px;
  }

  .news_top li .imgs {
    width: 100%;
  }

  .news_top li .text {
    width: 100%;
  }

  .news_top .swiper-pagination {
    width: calc(100% - 200px);
    left: auto;
    right: 15px;
    bottom: 30px;
    justify-content: flex-end;
  }

  .news_bot {
    margin-top: 24px;
  }

  .news_bot ul {
    flex-flow: column;
  }

  .news_bot li {
    width: 100%;
  }

  .news_bot li:nth-child(n+2) {
    margin-top: 20px;
  }

  .news_bot li .sums {
    margin-top: 12px;
  }

  .news_bot li .tims_jt {
    font-size: 13px;
    padding: 0.85em 15px;
  }
}

@media (max-width: 768px) {}

@media (max-width: 640px) {
  .news {
    padding: 30px 0 36px;
  }

  .news_top li .text {
    padding-top: 15px;
  }

  .news_top li .text h4 {
    font-size: 18px;
  }

  .news_top li .text .sums {
    font-size: 14px;
  }

  .news_top li .text .btns {
    font-size: 12px;
  }

  .news_top .swiper-pagination {
    bottom: 20px;
  }

  .news_bot li .sums {
    font-size: 14px;
    margin-top: 8px;
  }
}