@media (max-width: 992px) {
  html {
    font-size: 20px;
  }
}
@media (max-width: 512px) {
  html {
    font-size: 10px;
  }
}
@keyframes a-fadeIn-bottom {
  from {
    opacity: 0;
    transform: translateY(100px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.mainCont .df {
  display: flex;
  flex-wrap: wrap;
}
.mainCont .box-banner {
  height: 500px;
  background: -moz-linear-gradient(left, #171924, #141C33);
  background: -webkit-linear-gradient(left, #171924, #141C33);
  background: -o-linear-gradient(left, #171924, #141C33);
  background: -ms-linear-gradient(left, #171924, #141C33);
  background: linear-gradient(to right, #171924, #141C33);
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.mainCont .box-banner img {
  left: 50%;
  transform: translateX(-50%);
  top: 0;
}
.mainCont .box-banner img.img-banner {
  display: block;
}
.mainCont .box-banner img.img-banner-m {
  display: none;
}
.mainCont .box-banner .box-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  animation: a-fadeIn-bottom 1s ease-in-out forwards;
}
.mainCont .box-banner .box-text::after {
  content: "";
  width: 78px;
  height: 4px;
  background-color: #fff;
  margin-top: 97px;
}
.mainCont .box-banner .box-text .banner-title {
  font-size: 48px;
  color: #fff;
  margin-bottom: 26px;
}
.mainCont .box-banner .box-text .banner-subTitle {
  font-size: 24px;
  color: rgba(223, 236, 255, 0.6);
}
.mainCont .box-tool-bar {
  height: 78px;
  box-shadow: 10px 0 50px rgba(56, 40, 38, 0.1);
}
.mainCont .box-tool-bar .box-tool-bar-cont {
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar {
  font-size: 0;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li {
  position: relative;
  padding-bottom: 26px;
  display: inline-block;
  font-size: 18px;
  color: #313642;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: transparent;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:nth-child(n+2) {
  margin-left: 54px;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:hover {
  cursor: pointer;
  color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:hover::after {
  background-color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active {
  color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active::after {
  background-color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active a {
  color: #e94730;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a {
  font-size: 18px;
  color: #313642;
}
.mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a:hover {
  color: #e94730;
}
.mainCont .mainCont-contact {
  background: #f6f7f9;
  padding-bottom: 68px;
  padding-top: 68px;
}
.mainCont .mainCont-contact .contact-desc {
  position: absolute;
  top: 176px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0 36px;
  line-height: 36px;
  font-size: 24px;
  color: #3f4657;
  white-space: nowrap;
}
.mainCont .mainCont-contact .contact-desc p {
  z-index: 1;
}
.mainCont .mainCont-contact .contact-desc::before, .mainCont .mainCont-contact .contact-desc::after {
  z-index: 0;
  content: "";
  position: absolute;
  width: 43px;
  height: 36px;
  background-size: 100% 100%;
}
.mainCont .mainCont-contact .contact-desc::before {
  background: url("../../images/aboutUs/aboutSandStone/quotation_mark_left.png");
  left: 4px;
  top: -16px;
}
.mainCont .mainCont-contact .contact-desc::after {
  background: url("../../images/aboutUs/aboutSandStone/quotation_mark_right.png");
  right: 4px;
  bottom: -16px;
}
.mainCont .mainCont-contact .contact-desc-margin {
  margin-top: 15px;
  height: 70px;
}
.mainCont .mainCont-contact .contact-footer {
  justify-content: space-between;
}
.mainCont .mainCont-contact .contact-tip {
  width: 508px;
  height: 126px;
  box-shadow: 0 0 20px #d8d8d8;
}
.mainCont .mainCont-contact .contact-tip:nth-child(1) {
  width: 508px;
}
.mainCont .mainCont-contact .contact-tip:nth-child(2) {
  width: 564px;
}
.mainCont .mainCont-contact .contact-tip .tip-icon {
  width: 126px;
  height: 126px;
  background: url("../images/tip-icon-1.png") center no-repeat;
  background-size: 50px 50px;
  background-color: #e94730;
}
.mainCont .mainCont-contact .contact-tip .tip-icon.tip-icon-2 {
  background-image: url("../images/tip-icon-2.png");
}
.mainCont .mainCont-contact .contact-tip .tip-content {
  flex: 1 1;
  padding: 20px 30px 0 30px;
  line-height: 1.5;
  background: #fff;
}
.mainCont .mainCont-contact .contact-tip .tip-content .tip-title {
  font-size: 24px;
  color: #3f4657;
}
.mainCont .mainCont-contact .contact-tip .tip-content .tip-text {
  font-size: 24px;
  color: #b7b8ba;
}
.mainCont .mainCont-address {
  padding-top: 68px;
  padding-bottom: 8px;
}
.mainCont .mainCont-address .address-map-box {
  height: 524px;
  margin-top: 86px;
}
.mainCont .mainCont-address .map-container {
  margin-left: 384px;
}
.mainCont .mainCont-address .map-container .infoBox {
  opacity: 1;
  background: url("../images/infoBox.png") 0% 0% no-repeat;
  background-size: 100% auto;
  width: 402px;
  height: 78px;
  color: white;
  text-align: center;
  line-height: 50px;
  font-size: 14px;
}
.mainCont .mainCont-address .map-container .infoBox img {
  display: none;
}
.mainCont .mainCont-address .map-content {
  width: 384px;
  bottom: 0;
  top: 0;
  background: rgba(23, 25, 36, 0.9);
  color: #fff;
  line-height: 1.5;
}
.mainCont .mainCont-address .map-content .map-text-box {
  top: 50%;
  left: 50px;
  transform: translateY(-50%);
}
.mainCont .mainCont-address .map-content .map-title {
  font-size: 30px;
  margin-bottom: 100px;
}
.mainCont .mainCont-address .map-content .map-title:after {
  content: "";
  position: absolute;
  top: 60px;
  left: 0;
  width: 60px;
  height: 3px;
  background: #e94730;
}
.mainCont .mainCont-address .map-content .map-text {
  font-size: 16px;
}
.mainCont .mainCont-address .address-footer {
  justify-content: center;
  padding-top: 70px;
}
.mainCont .mainCont-address .address-tip {
  flex: 0 0 33.3%;
  line-height: 1.5;
  margin-bottom: 60px;
}
.mainCont .mainCont-address .address-tip .tip-icon {
  width: 22px;
  height: 26px;
  margin: 0 auto;
  background: url("../images/map-point-2.png");
  background-size: 100% 100%;
}
.mainCont .mainCont-address .address-tip .tip-title {
  margin-top: 20px;
  font-size: 26px;
}
.mainCont .mainCont-address .address-tip .tip-text {
  margin-top: 15px;
  font-size: 16px;
}
.mainCont .content-title {
  text-align: center;
}
.mainCont .content-title .title-text {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 34px;
  color: #313642;
  line-height: 52px;
}
.mainCont .content-title .title-text:before {
  content: "";
  width: 96px;
  height: 2px;
  margin-right: 30px;
  background: #ea4731;
}
.mainCont .content-title .title-text:after {
  content: "";
  width: 96px;
  height: 2px;
  margin-left: 30px;
  background: #ea4731;
}
.mainCont .content-title .title-en {
  font-size: 20px;
  color: #9b9c9f;
}

@media (max-width: 992px) {
  .mainCont {
    overflow-x: hidden;
  }
  .mainCont .box-banner {
    height: 90.6666666667vw;
    background-color: #10244b;
    display: flex;
    align-items: flex-start;
  }
  .mainCont .box-banner img {
    width: 100%;
    height: 100%;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
  }
  .mainCont .box-banner img.img-banner {
    display: none;
  }
  .mainCont .box-banner img.img-banner-m {
    display: block;
  }
  .mainCont .box-banner .box-text {
    margin-top: 17.8666666667vw;
    align-items: center;
    justify-content: center;
  }
  .mainCont .box-banner .box-text::after {
    display: none;
  }
  .mainCont .box-banner .box-text .banner-title {
    position: relative;
    font-size: 2.4rem;
    font-weight: bold;
    margin-bottom: 2.9333333333vw;
  }
  .mainCont .box-banner .box-text .banner-title::after {
    content: "";
    position: absolute;
    top: 6.9rem;
    left: 50%;
    transform: translateX(-50%);
    width: 5.7rem;
    height: 0.25rem;
    background-color: #fff;
    margin-top: 2.45rem;
  }
  .mainCont .box-banner .box-text .banner-subTitle {
    font-size: 1.5rem;
  }
  .mainCont .box-banner .box-text .banner-subTitle p {
    display: block;
    text-align: center;
  }
  .mainCont .box-tool-bar {
    padding: 0 2.6rem 0 3.85rem;
    height: 5rem;
    box-shadow: 0.5rem 0 2.5rem rgba(56, 40, 38, 0.1);
  }
  .mainCont .box-tool-bar .box-tool-bar-cont {
    padding: 0;
    overflow-x: auto;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar {
    white-space: nowrap;
    font-size: 0;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li {
    padding-bottom: 1.4rem;
    font-size: 1.4rem;
    white-space: nowrap;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li::after {
    height: 0.2rem;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:nth-child(n+2) {
    margin-left: 2.7rem;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li:hover::after {
    background-color: transparent;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active {
    color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active::after {
    background-color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active a {
    color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li.tab-active a:hover {
    color: #e94730;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a {
    font-size: 1.4rem;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont .tab-bar li a:hover {
    color: #313642;
  }
  .mainCont .box-tool-bar .box-tool-bar-cont::-webkit-scrollbar {
    display: none;
  }
  .mainCont .mainCont-contact {
    background: #f6f7f9;
    padding-bottom: 3.5rem;
    padding-top: 2.9rem;
  }
  .mainCont .mainCont-contact .contact-desc {
    position: absolute;
    top: 7.8rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0 1.8rem;
    line-height: 1.5;
    font-size: 1.2rem;
    color: #3f4657;
  }
  .mainCont .mainCont-contact .contact-desc p {
    z-index: 1;
  }
  .mainCont .mainCont-contact .contact-desc::before, .mainCont .mainCont-contact .contact-desc::after {
    z-index: 0;
    content: "";
    position: absolute;
    width: 2.15rem;
    height: 1.8rem;
  }
  .mainCont .mainCont-contact .contact-desc::before {
    background: url("../../images/aboutUs/aboutSandStone/quotation_mark_left.png");
    background-size: 100% 100%;
    left: 0.2rem;
    top: -0.8rem;
  }
  .mainCont .mainCont-contact .contact-desc::after {
    background: url("../../images/aboutUs/aboutSandStone/quotation_mark_right.png");
    background-size: 100% 100%;
    right: 0.2rem;
    bottom: -0.8rem;
  }
  .mainCont .mainCont-contact .contact-desc-margin {
    margin-top: 1rem;
    height: 2.6rem;
  }
  .mainCont .mainCont-contact .contact-footer {
    display: block;
    padding: 0 2rem;
  }
  .mainCont .mainCont-contact .contact-tip {
    width: 100%;
    height: 6.8rem;
    box-shadow: 0 0 20px #d8d8d8;
    flex-wrap: nowrap;
  }
  .mainCont .mainCont-contact .contact-tip:nth-child(1) {
    width: 100%;
    margin-bottom: 2.8rem;
  }
  .mainCont .mainCont-contact .contact-tip:nth-child(2) {
    width: 100%;
  }
  .mainCont .mainCont-contact .contact-tip .tip-icon {
    width: 6.8rem;
    height: 6.8rem;
    background-size: 2.5rem 2.5rem;
    background-color: #e94730;
  }
  .mainCont .mainCont-contact .contact-tip .tip-icon.tip-icon-2 {
    background-image: url("../images/tip-icon-2.png");
  }
  .mainCont .mainCont-contact .contact-tip .tip-content {
    flex: 1 1;
    padding: 0 1rem 0 0.5rem;
    line-height: 1.2;
    height: 100%;
    background: #fff;
  }
  .mainCont .mainCont-contact .contact-tip .tip-content .tip-title {
    font-size: 1.5rem;
  }
  .mainCont .mainCont-contact .contact-tip .tip-content .tip-text {
    font-size: 1rem;
  }
  .mainCont .mainCont-contact .contact-tip .tip-content .tip-center {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 1rem;
    right: 1rem;
  }
  .mainCont .mainCont-address {
    padding-top: 2.9rem;
    padding-bottom: 0rem;
  }
  .mainCont .mainCont-address .address-map-box {
    height: auto;
    margin-top: 3rem;
    padding-left: 2rem;
    padding-right: 2rem;
    padding-top: 37.3333333333vw;
  }
  .mainCont .mainCont-address .map-container {
    margin-left: 0;
    height: 17.7rem;
  }
  .mainCont .mainCont-address .map-container .infoBox {
    opacity: 1;
    background: url("../images/infoBox.png") 0% 0%/100% 100% no-repeat;
    width: auto;
    height: 3.4rem;
    line-height: 2.5rem;
    font-size: 1.2rem;
    white-space: nowrap;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
    display: none;
  }
  .mainCont .mainCont-address .map-content {
    width: auto;
    height: 14rem;
    left: 2rem;
    right: 2rem;
    bottom: 0;
    top: 0;
    background: rgba(23, 25, 36, 0.9);
    color: #fff;
    line-height: 1.5;
  }
  .mainCont .mainCont-address .map-content .map-text-box {
    padding-left: 3rem;
    padding-top: 2rem;
    position: relative;
    top: 0;
    left: 0;
    transform: translateY(0);
  }
  .mainCont .mainCont-address .map-content .map-title {
    font-size: 2rem;
    margin-bottom: 3rem;
  }
  .mainCont .mainCont-address .map-content .map-title:after {
    content: "";
    position: absolute;
    top: 3.8rem;
    left: 0;
    width: 3rem;
    height: 0.15rem;
    background: #e94730;
  }
  .mainCont .mainCont-address .map-content .map-text {
    font-size: 1.2rem;
    color: #7b7c7f;
  }
  .mainCont .mainCont-address .address-footer {
    justify-content: center;
    padding-top: 3.5rem;
  }
  .mainCont .mainCont-address .address-tip {
    flex: 0 0 100%;
    line-height: 1.5;
    margin-bottom: 4.5rem;
  }
  .mainCont .mainCont-address .address-tip .tip-icon {
    width: 1.4rem;
    height: 1.65rem;
    margin: 0 auto;
    background: url("../images/map-point-2.png");
    background-size: 100% 100%;
  }
  .mainCont .mainCont-address .address-tip .tip-title {
    margin-top: 1rem;
    font-size: 1.5rem;
  }
  .mainCont .mainCont-address .address-tip .tip-text {
    margin-top: 0.75rem;
    font-size: 1.2rem;
  }
  .mainCont .content-title .title-text {
    font-size: 2.1rem;
    color: #313642;
    line-height: 1.5;
  }
  .mainCont .content-title .title-text:before {
    display: none;
  }
  .mainCont .content-title .title-text:after {
    display: none;
  }
  .mainCont .content-title .title-en {
    font-size: 1rem;
    color: #9b9c9f;
  }
}