.about_body .site_text {
  top: 50%;
}
/* 文字块原先 top 落在中线，自身还在中线下面。桌面文案只占左半，手机播放按钮另有位置，这两档可以把整块挪到正中。
   平板文案拉满整行，再上移会压住播放按钮。 */
@media only screen and (min-width: 1025px), only screen and (max-width: 767px) {
  .about_body .site_text {
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
  }
}
/* 播放按钮同时有 a-m-c 和 fadeInUp。刷新时 a-m-c 先把按钮放在正中；
   fadeInUp 播完 fill-mode 把 transform 收成 translateY(0)，按钮就掉到中线下面。
   入场动画不能改这个位移，所以直接关掉。 */
.about_body .site_banner > .video_button {
  -webkit-animation: none !important;
  animation: none !important;
  -webkit-transform: translate(-50%, -50%) !important;
  -ms-transform: translate(-50%, -50%) !important;
  transform: translate(-50%, -50%) !important;
}
.site_banner.site_banner_video {
  position: relative;
}
.site_banner.site_banner_video::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.2);
}
.site_banner .icon-bofang1 {
  color: #fff;
  z-index: 99;
  width: 108rem;
  height: 108rem;
  line-height: 108rem;
  text-align: center;
  /* border: 1rem solid #fff; */
  border-radius: 50%;
  /* background: rgba(255, 255, 255, 0.2); */
  cursor: pointer;
}
.site_banner .icon-bofang1::before {
  position: relative;
  left: 2rem;
}

.pulse-ring {
  animation: 2.2s ease-out infinite playPulse;
  width: 100%;
  height: 100%;
  margin: auto;
  border: 1rem solid #fff;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

.pulse-ring:before {
  content: "";
  position: absolute;
  inset: -2px;
  animation: 2.2s ease-out 1.1s infinite playPulse;
  border: 2px solid #ffffff59;
  border-radius: 100%;
}

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

  to {
    opacity: 0;
    transform: scale(1.8);
  }
}

.about_box01 {
  padding: 50rem 0 65rem 0;
}

.about_title_ce {
  text-align: center;
  margin-bottom: 50rem;
}
.about_title h4 {
  margin-bottom: 10rem;
}
.about_title h3 {
  line-height: 1.2em;
  margin-bottom: 20rem;
}
.about_intr {
  margin-top: 10rem;
  overflow-wrap: break-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}
.about_box01 {
  overflow: hidden;
}
.about_box01 .left {
  width: 50%;
  float: left;
}
.about_box01 .right {
  width: 40.6%;
  float: right;
  margin-right: 20rem;
}
.about_num li {
  width: 50%;
  float: left;
  margin-bottom: 35rem;
}
.about_num ul {
  margin: 0 -20rem;
}
.about_num dl {
  margin: 0 20rem;
  position: relative;
}
.about_num dd {
  width: 100%;
  position: absolute;
  left: 0;
  bottom: 30rem;
  padding: 0 30rem;
}
.about_num dd span {
  line-height: 1em;
  margin-bottom: 10rem;
  display: block;
  display: flex;
  color: #1e2380;
}
.about_num dd p {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.about_num dd span sup {
  line-height: 1em;
}
.about_num dt {
  background: #e3eaf4;
}
.about_num dt > img {
  visibility: hidden;
  opacity: 0;
}
.about_num dt em {
  width: 30rem;
  height: 30rem;
  position: absolute;
  top: 30rem;
  right: 30rem;
}
.about_num dt em img {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  -ms-transition: all 0.3s;
}
.about_num dt em img:nth-child(2) {
  visibility: hidden;
  opacity: 0;
}

.about_box02 {
  background: #f5f7f8;
  padding: 90rem 0;
}
.about_box03 {
  background: #fff;
  padding-top: 90rem;
}
.about_box04 {
  padding: 90rem 0 100rem 0;
}
.about_box05 {
  padding: 90rem 0 70rem 0;
  background: #f5f7f8;
}

.about_slider {
  position: relative;
}
.about_green .swiper-container,
.about_his .swiper-container,
.about_news .swiper-container {
  padding: 10rem 0;
}
.about_green li {
  height: auto;
}
.about_green dl {
  padding: 30rem 35rem;
  background: #fff;
  height: 100%;
}
.about_green dt {
  margin-bottom: 10rem;
}
.about_green dt h3 {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.about_green dt span {
  display: block;
  width: 53rem;
  height: 53rem;
  background: #2c2c84;
  border-radius: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20rem;
}
.about_green dt span img {
  width: 35rem;
  height: 35rem;
}

/* ESG 评级条：主题卡片下方 */
.about_esg {
  margin-top: 40rem;
}
.about_esg_list {
  list-style: none;
  margin: 0;
  padding: 36rem 40rem;
  background: #fff;
  border-radius: 8rem;
  box-shadow: 0 6rem 24rem rgba(30, 35, 128, 0.06);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28rem 20rem;
  box-sizing: border-box;
}
.about_esg_item {
  flex: 1 1 280rem;
  min-width: 240rem;
  display: flex;
  align-items: center;
  gap: 20rem;
  box-sizing: border-box;
}
.about_esg_logo {
  flex: 0 0 auto;
  width: 150rem;
  height: 72rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about_esg_logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}
.about_esg_body {
  flex: 1 1 auto;
  min-width: 0;
}
.about_esg_grade_row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8rem 10rem;
  line-height: 1.1;
  margin-bottom: 8rem;
}
.about_esg_grade {
  color: #2293f6;
  line-height: 1em;
}
.about_esg_grade_title {
  color: #2293f6;
  line-height: 1.2;
}
.about_esg_agency {
  color: #000;
  line-height: 1.4;
  margin-bottom: 4rem;
}
.about_esg_remark {
  color: #8a9199;
  line-height: 1.4;
}
.about_esg_note {
  margin: 20rem 0 0;
  text-align: center;
  color: #8a9199;
  line-height: 1.6;
}

.about_his li {
  height: auto;
}
.about_his dl {
  background: #e7eaef;
  padding: 40rem;
  height: 100%;
}
.about_his dt {
  margin-bottom: 30rem;
}
.about_his dt h4 {
  color: #2293f6;
  line-height: 1em;
  margin-bottom: 10rem;
}
.about_his dt h3 {
  line-height: 1.2em;
}
.about_news dt {
  margin-bottom: 30rem;
  overflow: hidden;
}
.about_news dd span {
  display: block;
  color: #2293f6;
  line-height: 1em;
  margin-bottom: 10rem;
}
.about_news dd h3 {
  margin-bottom: 20rem;
}
.about_news dd p,
.about_news dd h3 {
  line-height: 1.5em;
  height: 4.5em;
  -webkit-line-clamp: 3;
}
.about_news dd p {
  color: #000;
}

.about_box05 dt {
  float: left;
  width: 62.2%;
}
.about_box05 dd {
  float: right;
  width: 34.6%;
  font-weight: bold;
}

.about_box05 dd p {
  padding: 25rem 10rem;
  padding-left: 50rem;
  position: relative;
  border-bottom: 1rem solid #d2d2d2;
}
.about_box05 dd p i {
  position: absolute;
  left: 10rem;
  top: 25rem;
  color: #1d2551;
}
.about_box05 dd a {
  color: #2293f6;
  text-decoration: underline;
}
.about_box05 dd a.tel_a {
  color: #000;
  text-decoration: none;
}

/* 联系方式：四张白卡片 */
.contact_card_grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.contact_card {
  background: #fff;
  padding: 40rem 30rem;
  text-align: center;
  box-sizing: border-box;
  min-height: 160rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: box-shadow 0.3s ease;
}
.contact_card_title {
  color: #000;
  line-height: 1.4;
  margin-bottom: 16rem;
}
.contact_card_email {
  color: #2293f6;
  text-decoration: underline;
  word-break: break-all;
  line-height: 1.5;
}

@media (max-width: 1024px) {
  .about_box0,
  .about_box04,
  .about_box05 {
    padding: 70rem 0;
  }
  .site_banner .icon-bofang1 {
    width: 80rem;
    height: 80rem;
    line-height: 80rem;
  }
  .about_title_ce {
    margin-bottom: 30rem;
  }
  .about_box01 .left,
  .about_box01 .right {
    float: none;
    width: 100%;
  }
  .about_box01 .left {
    margin-bottom: 40rem;
  }

  .about_num ul {
    margin: 0 -10rem;
    display: flex;
    flex-wrap: wrap;
  }

  .about_num dl {
    margin: 0 10rem;
  }
  .about_num li {
    margin-bottom: 20rem;
  }
  .about_num dt em {
    width: 20px;
    height: 20px;
  }
  .about_num dl {
    background: #e3eaf4;
    position: relative;
    padding: 30rem;
    height: 100%;
  }
  .about_num dd p {
    white-space: inherit;

    text-overflow: inherit;
  }
  .about_num dt > img {
    display: none;
  }
  .about_num dd {
    position: static;
    padding: 0;
    clear: both;
    padding-top: 20rem;
  }
  .about_num dt em {
    position: relative;
    display: block;
    top: 0;
    right: 0;
    float: right;
  }
  .about_box05 dt,
  .about_box05 dd {
    float: none;
    width: 100%;
  }
  .about_box05 dt {
    margin-bottom: 20rem;
  }
  .about_box05 dd p {
    padding: 15rem;
    padding-left: 40rem;
  }
  .about_box05 dd p i {
    top: 15rem;
  }
  .contact_card_grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20rem;
  }
  .contact_card {
    padding: 30rem 20rem;
    min-height: 140rem;
  }
  .about_esg_list {
    padding: 28rem 24rem;
    gap: 24rem 16rem;
  }
  .about_esg_item {
    flex: 1 1 100%;
    min-width: 0;
  }
}
@media (max-width: 767px) {
  .site_banner .icon-bofang1 {
    top: 30%;
  }
  .contact_card_grid {
    grid-template-columns: 1fr;
    gap: 16rem;
  }
  .contact_card {
    padding: 28rem 20rem;
    min-height: 120rem;
  }
  .about_esg {
    margin-top: 28rem;
  }
  .about_esg_list {
    padding: 22px 18px;
    border-radius: 8px;
  }
  .about_esg_logo {
    width: 110px;
    height: 53px;
  }
  .about_esg_note {
    margin-top: 14px;
  }
  .about_green dl,
  .about_his dl,
  .about_news dl {
    padding: 25px;
  }
  .about_news dl {
    padding: 0;
  }
  .about_news .index_btn > div {
    top: 250rem;
    margin-top: 0;
  }
  .about_news .index_btn .swiper-button-prev {
    left: 5px;
  }

  .about_news .index_btn .swiper-button-next {
    right: 5px;
  }
  .about_green dt span {
    width: 40px;
    height: 40px;
    border-radius: 5px;
  }

  .about_green dt span img {
    width: 30px;
    height: 30px;
  }
  .about_box05 dd p {
    padding: 10px;
    padding-left: 30px;
  }

  .about_box05 dd p i {
    top: 10px;
  }
  .about_box05 dd {
    font-weight: normal;
  }
}
@media (min-width: 1025px) {
  .about_num dt > img,
  .about_num dl dt {
    transition: all 0.3s;
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    -o-transition: all 0.3s;
    -ms-transition: all 0.3s;
  }
  .about_num dl:hover {
    color: #fff;
  }
  .about_num dl:hover dt {
    background: #fff;
  }
  .about_num dl:hover dt em img:nth-child(1) {
    opacity: 0;
    visibility: hidden;
  }
  .about_num dl:hover dt em img:nth-child(2) {
    opacity: 1;
    visibility: visible;
  }
  .about_num dl:hover dd span {
    color: #fff;
  }
  .about_num dl:hover dt > img {
    visibility: visible;
    opacity: 1;
  }
  .about_news dl:hover {
    box-shadow: none;
  }
  .about_box05 dd a:hover {
    opacity: 0.8;
  }
  .about_box05 dd a.tel_a:hover {
    color: #000 !important;
    cursor: default;
    opacity: 1;
  }
  .contact_card:hover {
    box-shadow: 0 10rem 30rem rgba(0, 0, 0, 0.08);
  }
  .contact_card_email:hover {
    opacity: 0.8;
  }

  .about_his dl:hover {
    background: #2c2c84;
    color: #fff;
  }
  .about_his dl:hover dt h4 {
    color: #fff;
  }
}

.maod {
  position: relative;
  top: -170rem;
}

/* 滚动条 */
.outscoll_color .mCSB_scrollTools .mCSB_dragger .mCSB_dragger_bar {
  background-color: #1e2380;
}
.about_box01 .left {
  height: 480rem;
  overflow: hidden;
}
.about_green dd {
  max-height: 170rem;
  overflow: hidden;
  overflow-wrap: break-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}
.about_his dd {
  max-height: 320rem;
  overflow: hidden;
  overflow-wrap: break-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}
@media (max-width: 1024px) {
  .about_box01 .left {
    height: auto;
  }
}
@media (max-width: 767px) {
  .about_green dd {
    max-height: 195px;
  }
}

/* Oil & GasSolutions */
.solution_cont {
  padding-bottom: 80rem;
}
.solution_cont .about_title {
  margin-bottom: 25rem;
}
.solution_01 {
  padding-top: 50rem;
}
.solution_02 {
  padding-top: 80rem;
}
.solution_03 {
  padding-top: 80rem;
}
.solu_overew .swiper-container {
  padding: 10rem 0;
}
.solu_overew dl {
  background: #eef2f4;
}
.solu_overew dd {
  padding: 25rem 35rem;
  padding-bottom: 40rem;
}
.solu_overew dd h3 {
  height: 3em;
  margin-bottom: 20rem;
}
.solu_overew dd p {
  color: #000;
  height: 8.5em;
  -webkit-line-clamp: 5;
  margin-bottom: 25rem;
}
@media (max-width: 1024px) {
  .solu_overew .index_btn > div {
    top: 130rem;
    margin-top: 0;
  }
  .solu_overew .index_btn .swiper-button-prev {
    left: 5rem;
  }

  .solu_overew .index_btn .swiper-button-next {
    right: 5rem;
  }
}
@media (max-width: 767px) {
  .solu_overew .index_btn > div {
    top: 190rem;
  }
  .solu_overew dd p {
    height: 5.1em;
    -webkit-line-clamp: 3;
  }
  .solu_overew dd {
    padding: 20px;
  }
}

/* case开始 */
.slide_con {
  position: relative;
}
.slide_con .swiper-container {
  padding: 10rem 0;
}
.slide_con li {
  height: auto;
}

.slidebox {
  display: flex;
  flex-wrap: wrap;
}
.slidebox dt h3 {
  margin-bottom: 15rem;
}
.slidebox .slide_iteam {
  width: 33.33%;
  margin: 14rem 0;
}
.slidebox {
  margin: 0 -17rem;
  padding: 0 1px;
}
.slidebox .slide_iteam dl {
  height: 100%;
  border: 1rem solid #e2e8ec;
  margin: 0 17rem;
  padding: 30rem;
}
.slidebox .slide_iteam p {
  color: #000;
}
.slidebox .index_more01 {
  padding-top: 20rem;
}
.slide_solutions h3 {
  height: 3em;
}
.slide_solutions p {
  height: 5.1em;
  -webkit-line-clamp: 3;
}
@media (max-width: 1024px) {
  .slidebox .slide_iteam {
    width: 50%;
    margin: 6rem 0;
  }
  .slidebox {
    margin: 0 -6rem;
    padding: 0 1px;
  }

  .slidebox .slide_iteam dl {
    margin: 0 6rem;
    padding: 20rem;
  }
}
@media (max-width: 767px) {
  .slidebox .slide_iteam {
    width: 100%;
    margin: 0;
  }

  .slidebox {
    margin: 0;
    padding: 0 1px;
  }

  .slidebox .slide_iteam dl {
    margin: 0;
    padding: 20px;
  }
  .slidebox,
  .slide_iteam {
    height: 100%;
  }
}
@media (min-width: 1025px) {
  .slide_block .slidebox .slide_iteam dl:hover {
    border-color: transparent;
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -o-transform: translateY(0);
    -ms-transform: translateY(0);
    transform: translateY(0);
  }
}
/* case结束 */

/* list */
.solution_listcont .about_title {
  margin-bottom: 30rem;
}
.solution_listcont .about_title h4 {
  margin-bottom: 20rem;
}
.solution_listcont {
  padding-bottom: 80rem;
}
.solution_listcont section {
  padding-top: 90rem;
}
.solution_listcont .solution_list01 {
  padding-top: 60rem;
}
.solution_body .site_text h3 {
  font-size: 30rem;
  line-height: 1.33em;
}
.solu_box dl {
  padding: 50rem 75rem 40rem 60rem;
  background: #eef2f4;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.solu_box dt {
  font-weight: 100;
  float: left;
}
.solu_box dd {
  width: calc(100% - 140rem);
  float: right;
}
.solu_process dl {
  background: #eef2f4;

  text-align: center;
}
.solu_process dd {
  padding: 20rem;
}
.solu_process dd h3 {
  height: 3em;
}

.solu_insight li {
  margin-bottom: 80rem;
}
.solu_insight li:last-child {
  margin-bottom: 0;
}
.solu_insight dl {
  overflow: hidden;
}
.solu_insight dt,
.solu_insight dd {
  height: 100%;
  overflow: hidden;
}
.solu_insight dt {
  float: right;
  width: 47.3%;
}
.solu_insight dd {
  float: left;
  width: 46.8%;
  padding: 40rem 0;
}
.solu_insight_top {
  padding-bottom: 30rem;
  margin-bottom: 30rem;
  border-bottom: 1rem solid #b2b2b2;
}
.solu_insight_top h3 {
  margin-bottom: 20rem;
}
.solu_insight_p p {
  line-height: 24rem;
  position: relative;
  padding-left: 18rem;
}
.solu_insight_p p::after {
  content: "";
  position: absolute;
  top: 10rem;
  left: 0;
  width: 4rem;
  height: 4rem;
  background: #000;
  border-radius: 50%;
}
/* 详情 */
.solution_dcont {
  padding: 80rem 0 90rem 0;
}

@media (max-width: 1024px) {
  .solution_listcont section {
    padding-top: 70rem;
  }
  .solu_box dl {
    padding: 50rem;
  }
  .solu_insight dd {
    padding: 0;
  }
  .solu_insight_top h3 {
    margin-bottom: 10rem;
  }
  .solu_insight_top {
    padding-bottom: 10rem;
    margin-bottom: 10rem;
  }
}
@media (max-width: 767px) {
  .solu_box dl {
    padding: 20px;
    display: block;
  }
  .solu_box dt {
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 30px;
    line-height: 1.2em;
  }
  .solu_box dt,
  .solu_box dd {
    float: none;
    width: 100%;
    font-weight: normal;
  }
  .solu_process dd {
    padding: 20px;
  }
  .solu_insight dl {
    height: auto !important;
  }
  .solu_insight dt,
  .solu_insight dd {
    width: 100%;
    float: none;
  }
  .solu_insight dt {
    margin-bottom: 20px;
  }
  .solu_insight_p p {
    line-height: 24px;
    padding-left: 15px;
  }
  .solu_insight_p p::after {
    width: 4px;
    height: 4px;
    top: 10px;
  }
  .solu_insight_top {
    padding-bottom: 15px;
    margin-bottom: 15px;
  }
  .solu_insight_top h3 {
    margin-bottom: 10px;
  }
  .solution_dcont {
    padding: 70rem 0;
  }
}
.fancybox-button--zoom,
.fancybox-button--thumbs {
  display: none !important;
}

/* banner高度修改 */
.about_body .site_banner_video {
  height: calc(100vh - 280rem) !important;
}

.about_body .site_banner_video > img {
  display: none;
}

@media only screen and (max-width: 1024px) {
  .about_body .site_banner_video {
    height: 50vh !important;
  }
}

@media only screen and (max-width: 767px) {
  .about_body .site_banner_video {
    height: 300px !important;
  }
}

/* MANUFACTURING AND DELIVERY */
.manufacture_cont .about_title {
  margin-bottom: 25rem;
}

.manufacture_cont .solution_01 {
  padding-bottom: 90rem;
}

.made_slide .made_t {
  padding-bottom: 35rem;
  margin-bottom: 35rem;
  border-bottom: 1px solid #a6a9aa;
}

.made_slide dd h3 {
  height: auto;

  -webkit-line-clamp: inherit;
}

.made_slide dd p {
  height: auto;
  margin-bottom: 0;
  -webkit-line-clamp: inherit;
}

.made_b span {
  display: block;
  line-height: 1em;
  margin-bottom: 10rem;
}

.made_01 {
  padding: 100rem 0 70rem 0;
  background: #eef2f4;
}

.made_list ul {
  margin: 0 -15rem;
  display: flex;
  flex-wrap: wrap;
}

.made_list li {
  width: 33.333%;

  box-sizing: border-box;
  margin-bottom: 30rem;
}

.made_list li dl {
  background: #ffffff;
  margin: 0 15rem;
  overflow: hidden;
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 35rem;
}

.made_list li dt {
  background: #ffffff;
  text-align: center;
  padding-bottom: 35rem;
  border-bottom: 1px solid #b2b2b2;
  margin-bottom: 20rem;
}

.made_list li dt img {
  max-width: 100%;
  width: 280rem;
}

.made_list li dd {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.made_list li dd h3 {
  margin-bottom: 15rem;
}

.product_num {
  margin-top: auto;
  display: flex;
  align-items: baseline;
  gap: 10rem;
}

.product_num .fnt_40 {
  color: #1e2380;
  line-height: 1;
}

.product_num .fnt_14 {
  color: #666666;
}

@media only screen and (max-width: 1024px) {
  .made_list ul {
    margin: 0 -10rem;
  }

  .made_list li dl {
    padding: 20rem;
    margin: 0 10rem;
  }

  .made_list li {
    margin-bottom: 20rem;
  }

  .made_list li dt {
    padding-bottom: 20rem;
    margin-bottom: 20rem;
  }

  .made_list li dt img {
    width: 200rem;
  }
}

@media only screen and (max-width: 767px) {
  .manufacture_cont .solution_01 {
    padding-bottom: 80rem;
  }

  .made_list ul {
    margin: 0;
    display: block;
  }

  .made_list li dl {
    padding: 20px;
    margin: 0;
  }

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

  .made_list li dt {
    padding-bottom: 20px;
    margin-bottom: 20px;
  }

  .made_list li dt img {
    width: 200px;
  }
}

/* 2026-10-20新增 */
.about_logoslider {
  margin-top: 40rem;
}
.about_logoslider .aboutlogo {
  width: auto;
  width: 90%;
  height: 100rem;
  line-height: 100rem;
  margin: auto;
  text-align: center;
}
.about_logoslider .aboutlogo img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  vertical-align: middle;
}
.about_logoslider .index_btn {
  bottom: 0;
}
.about_logoslider .index_btn .swiper-button-prev {
  left: 0;
}

.about_logoslider .index_btn .swiper-button-next {
  right: 0;
}