/* 关于-原理 */
.md-principle-1.md26439 {
  padding-top: 0.25rem;
  padding-bottom: 0.7rem;
  position: relative;
}
.md-principle-1.md26439 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 14.4rem;
  max-width: 92%;
}
.md-principle-1.md26439 .md-md {
  position: absolute;
  top: -1.3rem;
  visibility: hidden;
}
.md-principle-1.md26439 .subtitle {
  line-height: 1.8;
  color: var(--theme);
  margin-top: 0.1rem;
}
.md-principle-1.md26439 .desc {
  line-height: calc(30 / 16);
  margin-top: 0.14rem;
}
.md-principle-1.md26439 .ul {
  margin-top: 0.61rem;
}
.md-principle-1.md26439 .li:nth-child(2n-1) .icon {
  background-color: var(--active);
  box-shadow: 0.12rem 0.12rem 0.32rem 0 rgba(104, 144, 219, 0.23);
}
.md-principle-1.md26439 .li:nth-child(2n) .icon {
  background-color: var(--theme);
  box-shadow: 0.12rem 0.12rem 0.32rem 0 rgba(210, 106, 45, 0.23);
}
.md-principle-1.md26439 .li:last-child .d-le::before {
  display: none;
}
.md-principle-1.md26439 .d-le {
  position: relative;
}
.md-principle-1.md26439 .d-le::before {
  content: "";
  width: 1px;
  height: 100%;
  background-color: var(--active);
  opacity: 0.2;
  position: absolute;
  left: 50%;
  top: 0;
}
.md-principle-1.md26439 .icon {
  width: 2.25em;
  height: 2.25em;
  flex-shrink: 0;
  border-radius: 0.2rem;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}
.md-principle-1.md26439 .ii {
  height: 1em;
  filter: brightness(0) invert(1);
}
.md-principle-1.md26439 .text {
  padding-left: 0.7rem;
  padding-bottom: 0.46rem;
  flex-grow: 1;
}
.md-principle-1.md26439 .intro {
  line-height: calc(30 / 16);
  margin-top: 0.2rem;
}
.md-principle-2.md26439 {
  padding-top: 0.84rem;
  padding-bottom: 1.2rem;
  position: relative;
  background-color: var(--active);
}
.md-principle-2.md26439 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 14.4rem;
  max-width: 92%;
}
.md-principle-2.md26439 .md-md {
  position: absolute;
  top: -1.3rem;
  visibility: hidden;
}
.md-principle-2.md26439 .subtitle {
  line-height: 1.8;
  color: var(--theme);
  margin-top: 0.1rem;
}
.md-principle-2.md26439 .desc {
  line-height: calc(30 / 16);
  margin-top: 0.14rem;
}
.md-principle-2.md26439 .box {
  margin-top: 0.74rem;
}
.md-principle-2.md26439 .c-pic {
  width: 50%;
  border-radius: 0.2rem;
}
.md-principle-2.md26439 .img {
  padding-top: calc( 520 / 720 * 100%);
  height: 100%;
}
.md-principle-2.md26439 .text {
  width: calc( 620 / 1440 * 100%);
}
.md-principle-2.md26439 .content {
  line-height: calc(30 / 16);
}
.md-principle-2.md26439 .content em {
  color: var(--theme);
}
.md-principle-2.md26439 .btns {
  margin-top: 0.6rem;
}
.md-principle-2.md26439 .more {
  display: inline-flex;
  align-items: center;
  background-color: var(--theme);
  line-height: 1;
  padding: 0.22rem 0.3rem;
  border-radius: 1rem;
  transition: 0.5s;
}
.md-principle-2.md26439 .more:hover {
  background-color: var(--active);
  box-shadow: 0.12rem 0.12rem 0.32rem 0px rgba(104, 144, 219, 0.23);
}
.md-principle-2.md26439 .more svg {
  width: 0.5em;
  height: 1em;
  margin-left: 0.5em;
}
@media screen and (max-width: 900px) {
  .md-principle-2.md26439 .c-pic {
    width: 100%;
  }
  .md-principle-2.md26439 .text {
    width: 100%;
    margin-top: 0.3rem;
  }
}

.md-principle-3.md26439 {
  padding-top: 0.85rem;
  padding-bottom: 0.7rem;
  position: relative;
}
.md-principle-3.md26439 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 14.4rem;
  max-width: 92%;
}
.md-principle-3.md26439 .md-md {
  position: absolute;
  top: -1.3rem;
  visibility: hidden;
}
.md-principle-3.md26439 .subtitle {
  line-height: 1.8;
  color: var(--theme);
  margin-top: 0.1rem;
}
.md-principle-3.md26439 .desc {
  line-height: calc(30 / 16);
  margin-top: 0.14rem;
}
.md-principle-3.md26439 .ul {
  margin-top: 0.74rem;
}
.md-principle-3.md26439 .li {
  width: calc(450 / 1440 * 100%);
  margin-right: calc(45 / 1440 * 100%);
}
.md-principle-3.md26439 .li:nth-child(3n) {
  margin-right: 0;
}
.md-principle-3.md26439 .li {
  margin-bottom: 0.5rem;
}
.md-principle-3.md26439 .dd {
  height: 100%;
  text-align: center;
  padding: 0.5rem 0.4rem 0.6rem;
  border-radius: 0.2rem;
  box-shadow: 0 0 0 1px inset #d9e1ed;
  transition: 0.5s;
}
.md-principle-3.md26439 .dd:hover {
  box-shadow: 0 0 0 1px inset var(--active);
}
.md-principle-3.md26439 .dd:hover .icon {
  background-color: var(--active);
}
.md-principle-3.md26439 .dd:hover .ii {
  filter: brightness(0) invert(1);
}
.md-principle-3.md26439 .dd:hover .title {
  color: var(--active);
}
.md-principle-3.md26439 .icon {
  width: 2em;
  height: 2em;
  background-color: #fff;
  box-shadow: 0.12rem 0.12rem 0.32rem 0px rgba(104, 144, 219, 0.23);
  border-radius: 0.2rem;
  margin: 0 auto;
  transition: 0.5;
}
.md-principle-3.md26439 .ii {
  width: 1em;
  height: 1em;
  transition: 0.5s;
}
.md-principle-3.md26439 .title {
  margin-top: 0.44rem;
  transition: 0.5s;
}
.md-principle-3.md26439 .intro {
  line-height: calc(30 / 16);
  margin-top: 0.3rem;
}
@media screen and (max-width: 900px) {
  .md-principle-3.md26439 .ul {
    justify-content: space-between;
  }
  .md-principle-3.md26439 .li {
    width: 48%;
    margin-right: 0;
    margin-bottom: 4%;
  }
}
@media screen and (max-width: 500px) {
  .md-principle-3.md26439 .li {
    width: 100%;
  }
}

.md-principle-4.md26439 {
  padding-top: 0.85rem;
  padding-bottom: 1.1rem;
  position: relative;
  background-color: #f8f9fd;
  overflow: hidden;
}
.md-principle-4.md26439 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 14.4rem;
  max-width: 92%;
}
.md-principle-4.md26439 .md-md {
  position: absolute;
  top: -1.3rem;
  visibility: hidden;
}
.md-principle-4.md26439 .subtitle {
  line-height: 1.8;
  color: var(--theme);
  margin-top: 0.1rem;
}
.md-principle-4.md26439 .desc {
  line-height: calc(30 / 16);
  margin-top: 0.14rem;
}
.md-principle-4.md26439 .swiper {
  margin-top: 0.7rem;
  position: relative;
}
.md-principle-4.md26439 .line {
  width: 200vw;
  height: 2px;
  position: absolute;
  left: 50%;
  top: calc(1.25em - 1px);
  transform: translate(-50%);
  background-color: #d9e1ed;
  box-shadow: 0.12rem 0.12rem 0.32rem 0px rgba(104, 144, 219, 0.23);
}
.md-principle-4.md26439 .swiper-container {
  overflow: visible;
}
.md-principle-4.md26439 .sw {
  width: 4.2rem;
  margin-right: 0.6rem;
  display: flex;
  flex-direction: column;
  height: auto;
}
.md-principle-4.md26439 .sw:last-child {
  margin-right: 0;
}
.md-principle-4.md26439 .sw:hover .year {
  background-color: var(--active);
  box-shadow: 0.12rem 0.12rem 0.32rem 0px rgba(104, 144, 219, 0.23);
}
.md-principle-4.md26439 .sw:hover .wbox {
  box-shadow: 0 0 0 1px inset var(--active);
}
.md-principle-4.md26439 .year {
  width: 2.5em;
  height: 2.5em;
  border-radius: 50%;
  position: relative;
  margin-bottom: 0.6rem;
  background-color: var(--theme);
  box-shadow: 0.12rem 0.12rem 0.32rem 0px rgba(210, 106, 45, 0.23);
  transition: 0.5s;
}
.md-principle-4.md26439 .year::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 0.6rem;
  background-color: var(--active);
}
.md-principle-4.md26439 .wbox {
  background-color: #fff;
  border-radius: 0.2rem;
  box-shadow: 0 0 0 1px inset #d9e1ed;
  padding: 0.5rem 0.4rem 0.6rem;
  flex-grow: 1;
  transition: 0.5s;
}
.md-principle-4.md26439 .icon img {
  width: 1em;
  height: 1em;
  -o-object-fit: contain;
     object-fit: contain;
}
.md-principle-4.md26439 .title {
  min-height: 3em;
  margin-top: 0.35rem;
}
.md-principle-4.md26439 .intro {
  line-height: calc(30 / 16);
  margin-top: 0.18rem;
}
.md-principle-4.md26439 .bots {
  margin-top: 0.5rem;
  overflow: hidden;
  padding: 0.2rem 0;
}
.md-principle-4.md26439 .swiper-scrollbar {
  height: 1px;
  background-color: #eee;
}
.md-principle-4.md26439 .swiper-scrollbar-drag {
  background-color: var(--theme);
}
.md-principle-4.md26439 .swiper-scrollbar-drag::before {
  content: "";
  width: 0.22rem;
  height: 0.22rem;
  background-image: url(../images/icon-plane.png);
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  position: absolute;
  right: 0;
  top: calc(50% - 0.11rem);
}
.md-principle-4.md26439 .swiper-scrollbar-drag::after {
  content: "";
  width: 100vw;
  height: 1px;
  background-color: var(--theme);
  position: absolute;
  right: 0;
  top: 0;
}
.md-principle-4.md26439 .swiper-pagination-progressbar {
  position: relative;
  height: 1px;
  background-color: #eee;
  margin-top: 0.6rem;
}
.md-principle-4.md26439 .swiper-pagination-progressbar-fill {
  background-color: var(--theme);
}
.md-principle-4.md26439 .swiper-pagination-progressbar-fill::before {
  content: "";
  width: 0.22rem;
  height: 0.22rem;
  background-image: url(../images/icon-plane.png);
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  position: absolute;
  left: 100%;
  top: calc(50% - 0.11rem);
}
@media screen and (max-width: 900px) {
  .md-principle-4.md26439 .sw {
    width: 5rem;
    margin-right: 0.4rem;
  }
}


.md-about-5.md26439 {
  padding-top: 1.2rem;
  padding-bottom: 1.2rem;
  position: relative;
  overflow: hidden;
}
.md-about-5.md26439 .layout {
  margin-left: auto;
  margin-right: auto;
  width: 14.4rem;
  max-width: 92%;
}
.md-about-5.md26439 .md-md {
  position: absolute;
  top: -1.3rem;
  visibility: hidden;
}
.md-about-5.md26439 .c-pic {
  width: 50%;
  border-radius: 0.2rem;
}
.md-about-5.md26439 .img {
  padding-top: calc( 500 / 720 * 100%);
  height: 100%;
}
.md-about-5.md26439 .text {
  width: calc( 660 / 1440 * 100%);
  padding: 0.2rem 0;
}
.md-about-5.md26439 .title {
  line-height: 1.25;
}
.md-about-5.md26439 .content {
  line-height: calc(30 / 16);
  margin-top: 0.3rem;
}
.md-about-5.md26439 .btns {
  margin-top: 0.54rem;
}
.md-about-5.md26439 .more {
  display: inline-flex;
  align-items: center;
  background-color: var(--theme);
  line-height: 1;
  padding: 0.22rem 0.3rem;
  border-radius: 1rem;
  transition: 0.5s;
}
.md-about-5.md26439 .more:hover {
  background-color: var(--active);
  box-shadow: 0.12rem 0.12rem 0.32rem 0px rgba(104, 144, 219, 0.23);
}
.md-about-5.md26439 .more svg {
  width: 0.5em;
  height: 1em;
  margin-left: 0.5em;
}
@media screen and (max-width: 900px) {
  .md-about-5.md26439 .c-pic {
    width: 100%;
  }
  .md-about-5.md26439 .text {
    width: 100%;
  }
}