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

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

.about .sub-info {
  line-height: 1.8;
  text-align: center;
  margin-bottom: 20px;
}

.about .item-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin-bottom: -10px;
}

.about .item-list li {
  padding: 0 15px;
  margin-bottom: 10px;
  text-align: center;
}

.about .num {
  font-size: 18px;
  line-height: 1;
  font-weight: bold;
  color: var(--style-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about .num span {
  font-size: 24px;
}

.about .tit {
  margin-top: 2px;
}

.about .info {
  max-height: 202px;
  margin-top: 20px;
  line-height: 1.8;
}

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

  .about .about-wrap {
    padding-bottom: 120px;
  }

  .about .title {
    margin-bottom: 18px;
  }

  .about .sub-info {
    margin-bottom: 44px;
  }

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

  .about .num {
    font-size: 24px;
  }

  .about .num span {
    font-size: 40px;
  }

  .about .info {
    margin-top: 41px;
  }
}

@media (min-width: 1640px) {
  .about {
    padding-top: 74px;
  }

  .about .about-wrap {
    padding-bottom: 225px;
  }

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

  .about .num {
    font-size: 40px;
  }

  .about .num span {
    font-size: 60px;
  }
}


/* why-choose-us */
.why-choose-us {
  padding: 30px 0;
  position: relative;
}

.why-choose-us::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  min-height: 49.27vw;
  background: linear-gradient(180deg, rgba(0, 207, 233, 0) 0%, #00CFE9 100%);
  opacity: 0.05;
  z-index: -1;
}

.why-choose-us .top-img {
  display: none;
}

.why-choose-us .lt {
  padding: 20px 15px;
  position: relative;
}

.why-choose-us .lt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--style-color);
  opacity: 0.9;
}

.why-choose-us .lt>* {
  color: #fff;
  position: relative;
}

.why-choose-us .swiper-container {
  width: 100%;
  max-width: 100%;
}

.why-choose-us .title {
  text-align: left;
  margin-bottom: 11px;
}

.why-choose-us .sub-info {
  line-height: 1.8;
}

.why-choose-us .tit {
  margin-top: 15px;
  font-weight: bold;
  padding-top: 16px;
  margin-bottom: 6px;
  border-top: 1px solid rgba(255, 255, 255, .5);
}

.why-choose-us .info {
  line-height: 1.8;
  max-height: 144px;
}

.why-choose-us .rt {
  position: relative;
}

.why-choose-us .btn-wrap {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  align-items: center;
  z-index: 11;
}

.why-choose-us .prev-btn, .why-choose-us .next-btn {
  position: static;
  transform: translateY(0);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-choose-us .prev-btn {
  background: #E7E5ED;
}

.why-choose-us .next-btn {
  color: #fff;
  background: var(--style-color);
}

@media (min-width: 992px) {
  .why-choose-us .item-wrap {
    display: flex;
  }

  .why-choose-us .lt {
    flex: 0 0 48.5%;
    max-width: 48.5%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .why-choose-us .rt {
    flex: 0 0 51.5%;
    max-width: 51.5%;
  }

  .why-choose-us .info {
    max-height: 173px;
  }

  .why-choose-us .rt .swiper-container {
    height: 100%;
  }

  .why-choose-us .rt img {
    height: 100%;
  }
}

@media (min-width: 1200px) {
  .why-choose-us {
    margin-top: -115px;
    padding-top: 0;
    padding-bottom: 60px;
  }

  .why-choose-us .top-img {
    width: 54.375%;
    transform: translateX(7.25%);
    display: block;
    margin-left: auto;
    margin-right: auto;
  }

  .why-choose-us .lt {
    padding-left: 40px;
    padding-right: 40px;
  }

  .why-choose-us .tit {
    margin-top: 25px;
    padding-top: 26px;
    margin-bottom: 13px;
  }
}

@media (min-width: 1640px) {
  .why-choose-us {
    margin-top: -220px;
    padding-bottom: 70px;
  }

  .why-choose-us .lt {
    padding-left: 60px;
    padding-right: 60px;
  }
}


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

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

.faq .sub-info {
  line-height: 1.8;
  text-align: center;
  margin-bottom: 20px;
}

.faq .item:not(:last-child) {
  margin-bottom: 30px;
}

.faq .item-title {
  padding: 6px 15px;
  background: #F1F1F1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq .item-title.active {
  color: #fff;
  background: var(--style-color);
}

.faq .item-title i {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-left: 15px;
  border-radius: 50%;
  border: 2px solid #333;
  position: relative;
}

.faq .item-title.active i {
  border-color: #fff;
}

.faq .item-title i::before,
.faq .item-title i::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #333;
}

.faq .item-title.active i::before,
.faq .item-title.active i::after {
  background: #fff;
}

.faq .item-title i::before {
  width: 2px;
  height: 50%;
  transition: height .3s;
}

.faq .item-title.active i::before {
  height: 0;
}

.faq .item-title i::after {
  width: 50%;
  height: 2px;
}

.faq .item-info {
  color: #999;
  margin-top: 14px;
  margin-left: 15px;
  display: none;
}

@media (min-width: 1200px) {
  .faq {
    padding-top: 34px;
    padding-bottom: 60px;
  }

  .faq .title {
    margin-bottom: 18px;
  }

  .faq .sub-info {
    margin-bottom: 50px;
  }

  .faq .item-title {
    padding: 9px 30px;
  }

  .faq .item-info {
    margin-left: 30px;
  }
}

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


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

.certificate::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(88deg, #036E7B 0%, rgba(0, 104, 117, 0.57) 100%);
  opacity: 0.9;
}

.certificate .container {
  position: relative;
  z-index: 1;
}

.certificate .title {
  color: #fff;
  margin-bottom: 10px;
}

.certificate .line-title::before, .certificate .line-title::after {
  background: #fff;
}

.certificate .sub-info {
  color: #fff;
  text-align: center;
  margin-bottom: 20px;
}

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

.certificate .swiper-pagination-bullet:not(.swiper-pagination-bullet-active) {
  background: #FFFFFF;
  opacity: 0.4;
}

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

  .certificate .prev-btn, .certificate .next-btn {
    width: 50px;
    height: 50px;
    color: #333;
    font-size: 24px;
    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 .title {
    margin-bottom: 18px;
  }

  .certificate .sub-info {
    margin-bottom: 50px;
  }

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

@media (min-width: 1640px) {
  .certificate {
    padding-top: 93px;
    padding-bottom: 122px;
  }

  .certificate .swiper-pagination {
    margin-top: 62px;
  }
}


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

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

.partner .sub-info {
  text-align: center;
  margin-bottom: 20px;
}

.partner .swiper-container {
  margin: -4px -7px -10px -7px;
  padding: 4px 7px 10px 7px;
}

.partner .swiper-slide img {
  width: 100%;
  box-shadow: 0px 3px 6px 1px rgba(14, 91, 148, 0.16);
}

.partner .swiper-pagination {
  display: block;
}

@media (min-width: 1200px) {
  .partner {
    padding-top: 60px;
    padding-bottom: 57px;
  }

  .partner .title {
    margin-bottom: 18px;
  }

  .partner .sub-info {
    margin-bottom: 50px;
  }

  .partner .swiper-pagination {
    margin-top: 37px;
  }
}

@media (min-width: 1640px) {
  .partner {
    padding-top: 104px;
  }
}