.about {
  padding-top: 30px;
  padding-bottom: 30px;
}

.about .lt img {
  width: 100%;
  display: block;
  border-radius: 15px;
}

.about .lt {
  margin-bottom: 20px;
}

.about .title {
  margin-bottom: 10px;
}

.about .sub-info {
  max-height: 173px;
  line-height: 1.8;
}

.about .adv-list {
  margin: 30px 0 -12px;
}

.about .adv-list li {
  flex: 0 0 calc(50% - 12px);
  padding: 20px 25px;
  margin-bottom: 12px;
  text-align: center;
  background: #F5F5F5;
  border-radius: 15px;
  color: var(--style-color);
}

.about .adv-list li:hover {
  color: #fff;
  background: var(--style-color);
}

.about .icon {
  text-align: center;
  overflow: hidden;
}

.about .icon img {
  width: auto;
  height: 65px;
}

.about .adv-list li:hover .icon img {
  position: relative;
  top: -65px;
  filter: drop-shadow(0 65px 0 #fff);
}

.about .tit {
  margin-top: 13px;
  margin-bottom: 5px;
}

.about .info {
  height: 58px;
  line-height: 1.8;
}

@media(min-width: 600px) {
  .about .adv-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-left: -6px;
    margin-right: -6px;
  }

  .about .adv-list li {
    flex: 0 0 calc(50% - 12px);
    margin-left: 6px;
    margin-right: 6px;
  }
}

@media(min-width: 992px) {
  .about .container:first-child {
    max-width: 100%;
    padding: 0;
    display: flex;
    align-items: center;
  }

  .about .lt {
    flex: 0 0 49%;
    max-width: 49%;
    padding-right: 15px;
    margin-bottom: 20px;
  }

  .about .rt {
    flex: 0 0 51%;
    max-width: 51%;
    padding-left: 15px;
    padding-right: calc((100vw - 5px - 960px)/2 + 15px);
  }

  .about .sub-info {
    max-height: 260px;
  }

  .about .adv-list li {
    flex: 1;
  }
}

@media(min-width: 1200px) {
  .about {
    padding-top: 70px;
    padding-bottom: 60px;
  }

  .about .title {
    margin-bottom: 23px;
  }

  .about .sub-info {
    max-height: 288px;
  }

  .about .rt {
    padding-left: 38px;
    padding-right: calc((100vw - 5px - 1140px)/2 + 15px);
  }

  .about .adv-list {
    margin-top: 55px;
    margin-left: -12px;
    margin-right: -12px;
  }

  .about .adv-list li {
    padding: 30px 20px 25px;
    margin-left: 12px;
    margin-right: 12px;
  }

  .about .icon img {
    height: 78px;
  }

  .about .adv-list li:hover .icon img {
    top: -78px;
    filter: drop-shadow(0 78px 0 #fff);
  }
}

@media(min-width: 1440px) {
  .about .sub-info {
    max-height: 317px;
  }

  .about .rt {
    padding-right: calc((100vw - 5px - 1400px)/2 + 15px);
  }

  .about .adv-list li {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media(min-width: 1640px) {
  .about .sub-info {
    max-height: 461px;
  }
}


/* advantage */
.advantage .img {
  position: relative;
}

.advantage .img::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(51, 51, 51, .55);
}

.advantage .title {
  color: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.advantage .item-wrap {
  padding: 0 10px;
  box-shadow: 0px 5px 27px 0px rgba(0, 0, 0, 0.3300);
}

.advantage .item {
  padding: 25px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.advantage .icon {
  height: 65px;
}

.advantage .icon img {
  display: block;
  width: auto;
  height: 100%;
}

.advantage .num-group {
  margin-top: 11px;
  font-weight: bold;
  color: var(--style-color);
}

.advantage .info {
  height: 58px;
  line-height: 1.8;
}

@media (min-width: 540px) {
  .advantage .item-wrap {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
  }

  .advantage .item {
    flex: 0 0 50%;
  }
}

@media (min-width: 992px) {
  .advantage .item-wrap {
    padding: 0 15px;
  }

  .advantage .item {
    flex: 1;
    padding-left: 15px;
    padding-right: 15px;
  }
}

@media (min-width: 1200px) {
  .advantage .item {
    padding-top: 37px;
    padding-bottom: 32px;
    flex-direction: column;
    position: relative;
  }

  .advantage .icon {
    height: 83px;
  }
}

@media (min-width: 1440px) {
  .advantage .item-wrap {
    padding: 0 30px;
  }

  .advantage .item {
    padding-left: 30px;
    padding-right: 30px;
  }
}


/* strategy */
.strategy {
  padding: 30px 0;
}

.strategy .lt {
  margin-bottom: 20px;
}

.strategy .title {
  margin-bottom: 10px;
}

.strategy .info {
  max-height: 260px;
  line-height: 1.8;
}

@media (min-width: 768px) {
  .strategy .title {
    text-align: left;
  }
}

@media (min-width: 992px) {
  .strategy .container {
    display: flex;
    align-items: center;
  }

  .strategy .lt {
    flex: 0 0 48%;
    margin-bottom: 0;
  }

  .strategy .info {
    max-height: 317px;
  }

  .strategy .rt {
    flex: 0 0 52%;
    padding: 0 30px;
  }
}

@media (min-width: 1200px) {
  .strategy {
    padding: 60px 0;
  }

  .strategy .title {
    margin-bottom: 38px;
  }

  .strategy .info {
    max-height: 375px;
  }
}

@media (min-width: 1440px) {
  .strategy {
    padding: 80px 0;
  }

  .strategy .rt {
    padding: 0 95px;
  }
}


/* certificate */
.certificate {
  padding: 30px 0;
  background: #F5F5F5;
}

.certificate .title {
  margin-bottom: 20px;
}

.certificate .swiper-wrap {
  position: relative;
}

.certificate .swiper-slide {
  text-align: center;
}

@media (min-width: 768px) {
  .certificate .title {
    margin-bottom: 30px;
  }

  .certificate .prev-btn, .certificate .next-btn {
    width: 40px;
    height: 40px;
    font-size: 25px;
    border-radius: 50%;
    color: var(--style-color);
    border: 1px solid var(--style-color);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .certificate .prev-btn {
    transform: translate(-100%, -50%);
  }

  .certificate .next-btn {
    transform: translate(100%, -50%);
  }

  .certificate .prev-btn:not(.swiper-button-disabled),
  .certificate .next-btn:not(.swiper-button-disabled) {
    color: #fff;
    background: var(--style-color);
  }
}

@media (min-width: 1200px) {
  .certificate {
    padding: 61px 0;
  }

  .certificate .title {
    margin-bottom: 41px;
  }
}

@media (min-width: 1440px) {
  .certificate {
    padding-bottom: 93px;
  }
}


/* milestone */
@font-face {
  font-family: 'Besley-B';
  src: url('../public/Themes/fonts/Besley-Bold.ttf');
}

@font-face {
  font-family: 'Besley-M';
  src: url('../public/Themes/fonts/Besley-Medium.ttf');
}

.milestone {
  padding-top: 30px;
  padding-bottom: 30px;
  position: relative;
}

.milestone .title {
  margin-bottom: 20px;
}

.milestone .swiper-gallery {
  margin-bottom: 30px;
}

.milestone .lt-title {
  font-family: 'Besley-B';
  color: var(--style-color);
  margin-bottom: 10px;
  text-align: center;
}

.milestone .info {
  height: 116px;
  line-height: 1.8;
}

.milestone .rt {
  width: 100%;
  display: none;
}

.milestone .rt {
  position: relative;
  text-align: center;
}

.milestone .rt img:first-child {
  width: 99.8%;
  height: 99.8%;
  object-fit: cover;
}

.milestone .rt .zhezhao {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
}

/* 底部轮播 */
.milestone .swiper-thumbs {
  position: relative;
  width: 100%;
}

.milestone .swiper-thumbs::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  height: 2px;
  background: #989898;
  z-index: 1;
}

.milestone .swiper-thumbs .swiper-slide {
  color: #fff;
  padding: 7px 15px;
  text-align: center;
  background: #333;
  font-family: 'Besley-M';
  border-radius: 50px;
  cursor: pointer;
}

.milestone .swiper-thumbs .swiper-slide-thumb-active {
  background: var(--style-color);
  box-shadow: inset 5px 10px 10px 1px rgba(255, 255, 255, 0.3);
}

@media (min-width: 768px) {
  .milestone .swiper-gallery .container {
    max-width: 100%;
    padding: 0;
  }
  
  .milestone .swiper-gallery .swiper-slide {
    display: flex;
    align-items: center;
  }

  .milestone .lt {
    flex: 0 0 47%;
    max-width: 47%;
    padding-left: calc((100vw - 5px - 720px)/2 + 15px);
  }

  .milestone .info {
    height: 144px;
    max-width: 480px;
  }
  
  .milestone .lt-title {
    text-align: left;
  }

  .milestone .rt {
    display: block;
    flex: 0 0 53%;
    max-width: 53%;
  }
  
}

@media (min-width: 992px) {
  .milestone .lt {
    padding-left: calc((100vw - 5px - 960px)/2 + 15px);
  }
}

@media (min-width: 1200px) {
  .milestone {
    padding-top: 0;
    padding-bottom: 60px;
  }

  .milestone .title {
    position: absolute;
    top: 20px;
    left: calc((100vw - 5px - 1140px)/2 + 15px);
    z-index: 11;
    text-align: left;
    margin-bottom: 0;
  }

  .milestone .swiper-gallery {
    margin-bottom: 40px;
  }

  .milestone .lt {
    padding-top: 30px;
    padding-left: calc((100vw - 5px - 1140px)/2 + 15px);
  }

  .milestone .lt-title {
    margin-bottom: 25px;
  }

  .milestone .swiper-thumbs .swiper-slide {
    padding-top: 23px;
    padding-bottom: 23px;
  }
}

@media (min-width: 1440px) {
  .milestone {
    padding-bottom: 100px;
  }

  .milestone .title {
    top: 63px;
    left: calc((100vw - 5px - 1400px)/2 + 15px);
  }

  .milestone .swiper-gallery {
    margin-bottom: 55px;
  }

  .milestone .lt {
    padding-top: 50px;
    padding-left: calc((100vw - 5px - 1400px)/2 + 15px);
  }
}

@media (min-width: 1640px) {
  .milestone .swiper-thumbs .container {
    max-width: 1512px;
  }

  .milestone .lt-title {
    font-size: 60px;
  }
}