.swiper-container {
  margin: 0 auto;
  overflow: hidden;
  position: relative;
}

/* about */
.about {
  padding-top: 30px;
}

.about .rt {
  margin-top: 30px;
}

.about .sub-title {
  font-weight: bold;
  color: var(--style-color);
  margin-bottom: 12px;
}

.about .title {
  text-align: left;
  margin-bottom: 13px;
}

.about .info {
  color: #666;
  max-height: 173px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.about .item-list li {
  display: flex;
  margin-bottom: 12px;
  font-weight: bold;
}

.about .item-list i {
  font-size: 20px;
  line-height: 1;
  margin-right: 10px;
  font-weight: normal;
  color: var(--style-color);
  position: relative;
  top: 1px;
}

@media (min-width: 500px) {
  .about .item-list {
    display: flex;
    flex-wrap: wrap;
    margin-left: -10px;
    margin-right: -10px;
  }

  .about .item-list li {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 0 10px;
  }
}

@media (min-width: 992px) {
  .about .container {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
  }

  .about .container>* {
    flex: 0 0 50%;
    max-width: 50%;
  }

  .about .rt {
    padding-left: 30px;
    margin-top: 0;
  }
}

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

  .about .sub-title {
    margin-bottom: 24px;
  }

  .about .info {
    margin-bottom: 35px;
  }

  .about .item-list li {
    font-size: 18px;
    margin-bottom: 24px;
  }

  .about .item-list i {
    font-size: 26px;
    top: -1px;
  }
}

@media (min-width: 1640px) {
  .about {
    padding-top: 70px;
  }

  .about .rt {
    padding-left: 60px;
  }
}


/* advantage */
.advantage {
  padding-top: 80px;
  margin-top: -130px;
}

.advantage .container {
  position: relative;
  z-index: 1;
  bottom: -80px;
}

.advantage .sub-title {
  text-align: center;
  color: var(--style-color);
  font-weight: bold;
  margin-bottom: 12px;
}

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

.advantage .swiper-container {
  background: #fff;
  padding-bottom: 20px;
  box-shadow: 0px 5px 14px 1px rgba(2, 30, 51, 0.2);
}

.advantage .swiper-slide img {
  width: 100%;
}

.advantage .info-group {
  margin-top: 20px;
  padding: 0 20px;
}

.advantage .tit {
  font-weight: bold;
  margin-bottom: 13px;
}

.advantage .info {
  height: 58px;
  color: #999;
  line-height: 1.8;
  margin-bottom: 20px;
}

.advantage .item-list {
  margin-bottom: 20px;
}

.advantage .item-list li:not(:last-child) {
  margin-bottom: 10px;
}

.advantage .item-list li {
  font-weight: bold;
}

.advantage .item-list i {
  color: var(--style-color);
  margin-right: 8px;
  font-weight: normal;
}

.advantage .swiper-pagination {
  margin-top: 20px;
}

@media (min-width: 768px) {
  .advantage {
    padding-top: 125px;
    margin-top: -200px;
  }

  .advantage .container {
    bottom: -120px;
  }
}

@media (min-width: 1200px) {
  .advantage {
    padding-top: 95px;
  }

  .advantage .container {
    bottom: -170px;
  }

  .advantage .sub-title {
    margin-bottom: 24px;
  }

  .advantage .title {
    margin-bottom: 40px;
  }

  .advantage .swiper-container {
    padding-bottom: 60px;
  }

  .advantage .info-group {
    margin-top: 36px;
    padding-left: 30px;
    padding-right: 30px;
    position: relative;
  }

  .advantage .info-group::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    transform: translateX(50%);
    width: 1px;
    height: 100%;
    background: #eee;
  }

  .advantage .info {
    margin-bottom: 30px;
  }

  .advantage .item-list {
    margin-bottom: 30px;
  }

  .advantage .item-list li:not(:last-child) {
    margin-bottom: 17px;
  }
}

@media (min-width: 1440px) {
  .advantage .info-group {
    padding-left: 45px;
    padding-right: 45px;
  }
}

@media (min-width: 1640px) {
  .advantage {
    padding-top: 145px;
    margin-top: -211px;
  }

  .advantage .container {
    bottom: -170px;
  }

  .advantage .info-group {
    padding-left: 60px;
    padding-right: 60px;
  }

  .advantage .info {
    margin-bottom: 39px;
  }

  .advantage .item-list {
    margin-bottom: 46px;
  }
}


/* why-choose-us */
.why-choose-us {
  padding-top: 110px;
  padding-bottom: 90px;
  color: #fff;
}

.why-choose-us .title {
  text-align: left;
  max-width: 695px;
  margin-bottom: 20px;
}

.why-choose-us .info {
  line-height: 1.8;
  max-width: 695px;
}

@media (min-width: 768px) {
  .why-choose-us {
    padding-top: 160px;
  }
}

@media (min-width: 1200px) {
  .why-choose-us {
    padding-top: 224px;
    padding-bottom: 260px;
  }

  .why-choose-us .title {
    margin-bottom: 40px;
  }
}

@media (min-width: 1640px) {
  .why-choose-us {
    padding-top: 274px;
    padding-bottom: 310px;
  }
}


/* contact */
.contact {
  position: relative;
  z-index: 1;
  margin-top: -60px;
}

.contact .item-wrap {
  position: relative;
  background: #fff;
  padding: 30px 20px;
  border-bottom: 3px solid var(--style-color);
  box-shadow: 0px 5px 14px 1px rgba(14, 91, 148, 0.2);
}

.contact .item-wrap img {
  display: none;
}

.contact .top-wrap {
  margin-bottom: 30px;
}

.contact .title {
  text-align: left;
  margin-bottom: 13px;
}

.contact .sub-info {
  color: #666;
  line-height: 1.8;
  margin-bottom: 20px;
}

.contact .rt {
  padding: 20px;
  color: #fff;
  background: linear-gradient(180deg, #5BC5EC 0%, #0795C9 100%);
  box-shadow: 2px 6px 20px 1px rgba(81, 193, 235, 0.53);
}

.contact .info {
  line-height: 2;
  margin-bottom: 10px;
}

.contact .icon {
  display: flex;
  align-items: center;
  font-weight: bold;
}

.contact .icon i {
  width: 45px;
  height: 45px;
  font-size: 18px;
  border-radius: 50%;
  margin-right: 15px;
  font-weight: normal;
  background: rgba(255, 255, 255, 0.28);
  border: 1px solid #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact .form-control {
  border-radius: 6px;
  background: #F5F5F5;
  border: 1px solid #D1D1D1;
  box-shadow: none;
}

.contact .btn {
  color: #fff;
  font-size: 18px;
  margin-top: 15px;
  padding-left: 15px;
  padding-right: 15px;
  background: #021E33;
}

@media (min-width: 1200px) {
  .contact {
    margin-top: -209px;
    padding-top: 31px;
  }

  .contact .item-wrap {
    position: relative;
    padding: 94px 60px 60px;
    border-width: 6px;
  }

  .contact .item-wrap img {
    position: absolute;
    left: 0;
    top: 0;
    width: 10.9375%;
    display: block;
  }

  .contact .top-wrap {
    position: relative;
    z-index: 1;
    margin-top: -125px;
    display: flex;
    align-items: flex-end;
    margin-bottom: 40px;
  }

  .contact .lt {
    flex: 1;
  }

  .contact .sub-info {
    margin-bottom: 0;
  }

  .contact .rt {
    max-width: 525px;
    flex-shrink: 0;
    margin-left: 30px;
    padding: 32px 40px 40px;
    margin-bottom: 15px;
  }

  .contact .info {
    margin-bottom: 20px;
  }

  .contact .icon i {
    width: 65px;
    height: 65px;
    font-size: 24px;
    border-width: 2px;
    margin-right: 26px;
  }

  .contact .form-group {
    margin-bottom: 36px;
  }

  .contact .form-control {
    height: 66px;
    padding-left: 30px;
    padding-right: 30px;
  }

  .contact .btn {
    font-size: 20px;
    padding: 11px 30px;
    transition: background .3s;
  }

  .contact .btn:hover {
    background: var(--style-color);
  }
}

@media (min-width: 1640px) {
  .contact .item-wrap {
    padding-left: 100px;
    padding-right: 100px;
    padding-bottom: 94px;
  }

  .contact .top-wrap {
    margin-bottom: 55px;
  }

  .contact .rt {
    margin-left: 42px;
  }

  .contact .row {
    margin-left: -18px;
    margin-right: -18px;
  }

  .contact .row>div {
    padding: 0 18px;
  }

  .contact .btn {
    font-size: 24px;
    margin-top: 36px;
  }
}

/* partner */
.partner {
  padding-top: 30px;
}

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

.partner .title {
  text-align: left;
  margin-bottom: 12px;
}

.partner .sub-info {
  line-height: 1.8;
  margin-bottom: 20px;
}

.partner .swiper-container {
  margin: -4px -10px -10px -4px;
  padding: 4px 10px 10px 4px;
}

.partner .swiper-slide img {
  width: 100%;
  box-shadow: 0px 3px 6px 1px rgba(0, 0, 0, 0.16);
}

.partner .swiper-pagination {
  display: block;
  margin-top: 15px;
}

.partner .swiper-pagination-bullet {
  width: 20px;
  height: 6px;
  margin-top: 0;
  margin-left: 3px;
  margin-right: 3px;
  border-radius: 0;
}

.partner .swiper-pagination-bullet:not(.swiper-pagination-bullet-active) {
  background: var(--style-color);
  opacity: .2;
}

@media (min-width: 768px) {
  .partner .swiper-container {
    height: 282px;
  }

  .partner .swiper-slide {
    height: 76px;
  }
}

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

  .partner .container>* {
    flex: 0 0 50%;
    max-width: 50%;
  }

  .partner .lt {
    padding-right: 18px;
    margin-bottom: 0;
  }

  .partner .rt {
    padding-left: 18px;
  }

  .partner .swiper-container {
    height: 303px;
  }

  .partner .swiper-slide {
    height: 71px;
  }
}

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

  .partner .rt {
    padding-left: 30px;
  }

  .partner .sub-info {
    margin-bottom: 40px;
  }

  .partner .swiper-pagination {
    margin-top: 40px;
  }

  .partner .swiper-container {
    height: 345px;
  }

  .partner .swiper-slide {
    height: 85px;
  }
}

@media (min-width: 1440px) {
  .partner .swiper-container {
    height: 414px;
  }

  .partner .swiper-slide {
    height: 108px;
  }
}

@media (min-width: 1640px) {
  .partner {
    padding-top: 110px;
  }

  .partner .rt {
    padding-left: 42px;
  }

  .partner .swiper-container {
    height: 459px;
  }

  .partner .swiper-slide {
    height: 123px;
  }
}


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

.certificate .sub-title {
  text-align: center;
  font-weight: bold;
  color: var(--style-color);
  margin-bottom: 10px;
}

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

.certificate .swiper-container {
  margin: -14px -14px -14px -8px;
  padding: 14px 14px 14px 8px;
}

.certificate .swiper-slide img {
  width: 100%;
  box-shadow: 0px 3px 10px 1px rgba(0, 0, 0, 0.71);
}

.certificate .swiper-pagination {
  margin-top: 20px;
}

.certificate .swiper-pagination-bullet {
  background: #333;
}

.certificate .swiper-pagination-bullet-active {
  background: #fff;
}

@media (min-width: 768px) {
  .certificate .swiper-wrap {
    position: relative;
  }

  .certificate .prev-btn, .certificate .next-btn {
    width: 50px;
    height: 50px;
    color: #333;
    font-size: 22px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .8);
    box-shadow: 0px 3px 6px 1px rgba(0, 0, 0, 0.16);
    display: flex;
    align-items: center;
    justify-content: center;
  }

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

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

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

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

  .certificate .title {
    margin-bottom: 40px;
  }
}

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

@media (min-width: 1640px) {
  .certificate {
    padding-top: 76px;
    padding-bottom: 162px;
  }

  .certificate .title {
    margin-bottom: 54px;
  }
}