.flex-row {
  display: flex;
  flex-direction: row;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-row-center {
  justify-content: center;
}
.flex-row-sa {
  justify-content: space-around;
}
.flex-row-sp {
  justify-content: space-between;
}
.flex-col-center {
  align-items: center;
}
.flex-col-sa {
  align-items: space-around;
}
.flex-col-sp {
  align-items: space-between;
}
.flex-wrap {
  flex-wrap: wrap;
}
@media (min-width: 769px) {
  .chain-banner {
    position: relative;
    background: url(chain_banner.jpg) center no-repeat;
    height: 500px;
    margin-top: 65px;
  }
  .chain-banner__container {
    position: absolute;
    width: 100%;
    top: 160px;
  }
  .chain-banner__container .flex-col {
    position: relative;
  }
  .chain-banner__container .title {
    height: 70px;
    font-size: 4rem;
    font-family: PingFangSC, PingFangSC-Semibold;
    font-weight: 600;
    text-align: left;
    color: #ffffff;
    line-height: 70px;
    margin-bottom: 24px;
  }
  .chain-banner__container .subtitle {
    height: 34px;
    font-size: 34px;
    font-family: PingFang, PingFang-SC;
    text-align: left;
    color: #ffffff;
    line-height: 34px;
  }
  .chain-banner__container .try-use {
    margin-top: 89px;
    width: 166px;
    height: 48px;
    background: #126bf2;
    border-radius: 40px;
    color: white;
    font-size: 1.4rem;
    font-family: MicrosoftYaHei;
    text-align: center;
    line-height: 48px;
    letter-spacing: 1px;
  }
}
@media (max-width: 768px) {
  .chain-banner {
    position: relative;
    background: url(chain_banner.jpg) center no-repeat;
    height: 435px;
    margin-top: 50px;
    background-size: cover;
  }
  .chain-banner__container {
    position: absolute;
    width: 100%;
    top: 123px;
    text-align: center;
  }
  .chain-banner__container .flex-col {
    align-items: center;
  }
  .chain-banner__container .title {
    height: 49px;
    font-size: 34px;
    font-family: PingFangSC, PingFangSC-Semibold;
    font-weight: 600;
    text-align: left;
    color: #ffffff;
    line-height: 48px;
    text-shadow: 0px 0px 18px 0px rgba(0, 0, 0, 0.5);
  }
  .chain-banner__container .subtitle {
    margin-top: 16px;
    height: 17px;
    font-size: 17px;
    font-family: PingFang, PingFang-SC;
    color: #ffffff;
    line-height: 17px;
  }
  .chain-banner__container .try-use {
    margin-top: 132px;
    width: 122px;
    height: 34px;
    background: #126bf2;
    border-radius: 28px;
    color: white;
    font-size: 15px;
    line-height: 34px;
    font-family: MicrosoftYaHei;
    text-align: center;
    letter-spacing: 1px;
  }
}
@media (min-width: 769px) {
  .chain-advan {
    height: 813px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .chain-advan__container {
    max-width: 950px;
  }
  .chain-advan__container__subtitle {
    font-size: 16px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: center;
    color: #333333;
    line-height: 22px;
    letter-spacing: 1px;
  }
  .chain-advan__container__img {
    margin-top: 60px;
  }
  .chain-advan__container__img--m {
    margin-top: 32px;
    width: 343px;
    display: none;
  }
}
@media (max-width: 768px) {
  .chain-advan {
    height: 572px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .chain-advan__container {
    box-sizing: border-box;
    padding: 0 24px;
    max-width: 435px;
  }
  .chain-advan__container__subtitle {
    font-size: 14px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: center;
    color: #333333;
    letter-spacing: 1px;
  }
  .chain-advan__container__img {
    margin-top: 32px;
    display: none;
  }
  .chain-advan__container__img--m {
    margin-top: 32px;
    width: 343px;
  }
}
@media (min-width: 769px) {
  .chain-module {
    height: 580px;
  }
  .chain-module .carousel-container #chainModule {
    width: 996px;
    height: 431px;
    margin: 0 auto;
  }
  .chain-module .carousel-container #chainModule .btn_prev {
    left: 80px;
  }
  .chain-module .carousel-container #chainModule .btn_next {
    right: 80px;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div {
    flex-direction: row-reverse;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .left img {
    width: 359px;
    height: auto;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .right {
    width: 365px;
    margin-right: 226px;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .right .title {
    font-size: 20px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: left;
    color: #ffffff;
    line-height: 31px;
    letter-spacing: 1px;
    margin-bottom: 16px;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .right .desc {
    width: 365px;
    height: 72px;
    font-size: 14px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: left;
    color: #ffffff;
    line-height: 24px;
    letter-spacing: 1px;
  }
}
@media (max-width: 768px) {
  .chain-module {
    height: 435px;
  }
  .chain-module .carousel-container .btn_next,
  .chain-module .carousel-container .btn_prev {
    display: none;
  }
  .chain-module .carousel-container .carousel-controls {
    top: 366px;
  }
  .chain-module .carousel-container .carousel-controls a.on {
    background: #fff;
  }
  .chain-module .carousel-container #chainModule {
    width: 375px;
    height: 431px;
    margin: 0 auto;
    position: relative;
    top: -20px;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div {
    flex-direction: column-reverse;
    align-items: center;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .left img {
    width: 272px;
    height: auto;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .right {
    width: 355px;
    box-sizing: border-box;
    margin-bottom: 29px;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .right .title {
    height: 16px;
    font-size: 16px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: center;
    color: #ffffff;
    line-height: 16px;
    margin-bottom: 16px;
  }
  .chain-module .carousel-container #chainModule > .carousel-items > ul > li > div .right .desc {
    height: 47px;
    font-size: 12px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: center;
    color: #ffffff;
    line-height: 16px;
    letter-spacing: 1px;
  }
}
@media (min-width: 769px) {
  .chain-process {
    height: 1011px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .chain-process__container {
    max-width: 950px;
  }
  .chain-process__container__subtitle {
    height: 44px;
    font-size: 16px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: center;
    color: #333333;
    line-height: 22px;
    letter-spacing: 1px;
  }
  .chain-process__container__img {
    width: 1072px;
    margin-top: 60px;
  }
  .chain-process__container__img--m {
    display: none;
  }
}
@media (max-width: 768px) {
  .chain-process {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .chain-process .title {
    white-space: pre;
  }
  .chain-process__container {
    box-sizing: border-box;
    padding: 0 44px;
    max-width: 435px;
  }
  .chain-process__container__subtitle {
    font-size: 12px;
    font-family: PingFangSC, PingFangSC-Regular;
    font-weight: 400;
    text-align: center;
    color: #333333;
    letter-spacing: 1px;
  }
  .chain-process__container__img {
    display: none;
  }
  .chain-process__container__img--m {
    width: 344px;
    margin-top: 32px;
  }
}
@media (max-width: 768px) {
  .more-case {
    display: none;
  }
}
@media (min-width: 769px) {
  .more-case-mobile {
    display: none;
  }
}