h1 {
  margin: 0;
}

.Chain .banner {
  position: relative;
  overflow: hidden;
}

.Chain .banner .mengban {
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: 0;
}

.Chain .banner .img_bg {
  position: absolute;
  z-index: -1;
  top: -960px;
  left: -180px;
  will-change: transform;
  animation: banneryidong 30s 1s linear infinite alternate;
}

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

.Chain .sec1 {
  padding: 30px 0 0;
}

.Chain .sec1 .sec-item {
  margin-top: 20px;
  height: 240px;
}

.Chain .sec1 .sec-item .imgBox {
  width: 120px;
  height: 120px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.Chain .sec1 .sec-item .imgBox img {
  width: 85%;
  display: block;
}

.Chain .sec1 .sec-tit {
  margin-bottom: 30px;
}

.Chain .sec1 .sec-pg {
  margin-bottom: 20px;
  color: #333;
  font-size: 20px;
}

.Chain .sec2 {
  background: #222222;
  position: relative;
  width: 100%;
  height: 760px;
  overflow: hidden;
}

.Chain .sec2 .sec2_logo {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  height: 250px;
}

.Chain .sec2 .sec2_logo img {
  position: absolute;
  height: 100%;
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
}

.Chain .sec2 .cos {
  position: absolute;
  top: 256px;
  padding: 0 20px;
}

.Chain .sec2 .sec-tit {
  color: #fff;
  font-size: 20px;
  margin-bottom: 30px;
}

.Chain .sec2 .sec-pg {
  color: #aaa;
  font-size: 18px;
  margin-bottom: 4px;
}

.Chain .sec3 {
  padding: 30px 0 20px;
}

.Chain .sec3 .sec-item {
  margin-bottom: 35px;
  text-align: left;
}

.Chain .sec3 .sec-item img {
  margin: 0;
}

.Chain .sec3 .sec-tit {
  margin-bottom: 30px;
}

.Chain .sec3 h3.sec-pg {
  margin: 15px 0 25px;
  font-size: 20px;
  color: #333333;
}

.Chain .sec3 p.sec-pg {
  margin-bottom: 10px;
  font-size: 18px;
}

.Chain .sec4, .Chain .sec5 {
  padding: 40px 0;
}

.Chain .sec4 .div_logo, .Chain .sec5 .div_logo {
  width: 45%;
}

.Chain .sec4 .div_logo img, .Chain .sec5 .div_logo img {
  display: block;
  margin: 0 auto;
}

.Chain .sec4 .div_cont, .Chain .sec5 .div_cont {
  width: 55%;
}

.Chain .sec4 .div_cont .tit, .Chain .sec5 .div_cont .tit {
  font-size: 20px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 26px;
}

.Chain .sec4 .div_cont .tit a, .Chain .sec5 .div_cont .tit a {
  line-height: 26px;
  font-size: 16px;
  font-weight: normal;
  color: #e37200;
}

.Chain .sec4 .div_cont .tit a:hover, .Chain .sec5 .div_cont .tit a:hover {
  text-decoration: underline;
}

.Chain .sec4 .div_cont .p, .Chain .sec5 .div_cont .p {
  font-size: 18px;
  line-height: 28px;
}

.Chain .sec4 {
  background: #F5F5F5;
}

@media (min-width: 751px) {
  .Chain .sec1 {
    padding: 50px 0 80px;
  }
  .Chain .sec1 .sec-item {
    margin-top: 40px;
    height: 200px;
  }
  .Chain .sec1 .sec-item .imgBox {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .Chain .sec1 .sec-item .imgBox img {
    width: 85%;
    display: block;
  }
  .Chain .sec1 .sec-pg {
    margin-top: 30px;
  }
  .Chain .sec2 {
    height: 648px;
  }
  .Chain .sec2 .sec2_logo {
    float: left;
    width: 50%;
  }
  .Chain .sec2 .cos {
    top: 50%;
    transform: translateY(-50%);
    left: 45%;
  }
  .Chain .sec2 .sec-tit {
    font-size: 28px;
    margin-bottom: 30px;
  }
  .Chain .sec2 .sec-pg {
    font-size: 18px;
    margin-bottom: 6px;
  }
  .Chain .sec3 {
    padding: 30px 0 20px;
  }
  .Chain .sec3 .sec-item {
    text-align: left;
    margin-bottom: 35px;
  }
  .Chain .sec3 .sec-item img {
    margin: 0;
  }
  .Chain .sec3 .sec-tit {
    margin-bottom: 30px;
  }
  .Chain .sec3 h3.sec-pg {
    margin: 15px 0 25px;
    font-size: 20px;
  }
  .Chain .sec3 p.sec-pg {
    margin-bottom: 10px;
    font-size: 18px;
  }
  .Chain .sec4 {
    padding: 35px 0 40px;
  }
  .Chain .sec4 .sec-item .uyooLogo {
    width: 204px;
    height: 204px;
    display: block;
  }
  .Chain .sec4 .sec-item .uyooLogo.zh {
    background: url("./../img/roadMap/sec4_1_zh.png") no-repeat;
    background-size: 411px 204px;
  }
  .Chain .sec4 .sec-item .uyooLogo.en {
    background: url("./../img/roadMap/sec4_1_en.png") no-repeat;
    background-size: 411px 204px;
  }
  .Chain .sec4 .sec-item .uyooLogo:hover {
    background-position: -207px;
  }
  .Chain .sec4 .sec-tit {
    margin: 10px 0 20px;
  }
  .Chain .sec4 .sec-pg:nth-child(2) {
    margin-bottom: 20px;
    font-size: 30px;
  }
  .Chain .sec4 .container:nth-child(1) {
    display: block;
  }
  .Chain .sec4 .container:nth-child(2) {
    display: none;
  }
}

@media (min-width: 1201px) {
  .Chain .sec1 {
    padding: 80px 0 110px;
  }
  .Chain .sec1 .sec-item {
    margin-top: 40px;
  }
  .Chain .sec1 .sec-item .imgBox {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .Chain .sec1 .sec-item .imgBox img {
    width: 85%;
    display: block;
  }
  .Chain .sec1 .sec-pg {
    margin-top: 30px;
  }
  .Chain .sec2 {
    height: 640px;
  }
  .Chain .sec2 .sec2_logo {
    float: left;
    width: 70%;
    height: 70%;
  }
  .Chain .sec2 .cos {
    top: 50%;
    transform: translateY(-50%);
    left: 55%;
  }
  .Chain .sec2 .sec-tit {
    font-size: 30px;
    margin-bottom: 40px;
  }
  .Chain .sec2 .sec-pg {
    font-size: 20px;
    margin-bottom: 10px;
  }
  .Chain .sec2 .sec-pg:last-child {
    margin-bottom: 0px;
  }
  .Chain .sec3 {
    padding: 30px 0 65px;
  }
  .Chain .sec3 .sec-item {
    margin-bottom: 65px;
  }
  .Chain .sec3 .sec-tit {
    margin-bottom: 80px;
  }
  .Chain .sec3 h3.sec-pg {
    margin: 15px 0 15px;
    height: 56px;
  }
  .Chain .sec3 p.sec-pg {
    margin-bottom: 10px;
    font-size: 18px;
  }
  .Chain .sec4 {
    padding: 35px 0 40px;
  }
  .Chain .sec4 .sec-item .uyooLogo {
    width: 200px;
    height: 200px;
    display: block;
  }
  .Chain .sec4 .sec-item .uyooLogo.zh {
    background: url("./../img/roadMap/sec4_1_zh.png") no-repeat;
    background-size: 400px;
  }
  .Chain .sec4 .sec-item .uyooLogo.en {
    background: url("./../img/roadMap/sec4_1_en.png") no-repeat;
    background-size: 400px;
  }
  .Chain .sec4 .sec-item .uyooLogo:hover {
    background-position: -200px;
  }
  .Chain .sec4 .sec-tit {
    margin: 20px 0 60px;
  }
  .Chain .sec4 .sec-pg:nth-child(2) {
    margin-bottom: 20px;
    font-size: 30px;
  }
  .Chain .sec4 .container:nth-child(1) {
    display: block;
  }
  .Chain .sec4 .container:nth-child(2) {
    display: none;
  }
}

@media screen and (min-width: 1200px) {
  .xz {
    animation: roate 1s;
    animation-fill-mode: forwards;
    animation-direction: alternate;
  }
  .Chain .sec1 {
    overflow: hidden;
  }
  .Chain .sec1 .container {
    margin-top: 50px;
    opacity: 0;
  }
  .Chain .sec2 .cos {
    opacity: 0;
    transition: opacity 1s linear;
  }
  .Chain .sec3 {
    overflow: hidden;
  }
  .Chain .sec3 .container .row {
    margin-top: 50px;
    opacity: 0;
  }
  .Chain .sec4 .div_cont .tit, .Chain .sec5 .div_cont .tit {
    width: 95%;
  }
}

@keyframes roate {
  from {
    margin-top: 50px;
    opacity: 0;
  }
  to {
    margin-top: 0px;
    opacity: 1;
  }
}

@keyframes banneryidong {
  form {
    transform: translate(0, 0);
  }
  to {
    transform: translate(-140px, -140px);
  }
}

@media (max-width: 1200px) {
  .Chain .sec4 .div_logo img, .Chain .sec5 .div_logo img {
    width: 200px;
  }
  .Chain .sec4 .div_cont .tit, .Chain .sec5 .div_cont .tit {
    font-size: 18px;
  }
  .Chain .sec4 .div_cont .tit a, .Chain .sec5 .div_cont .tit a {
    font-size: 12px;
  }
  .Chain .sec4 .div_cont .p, .Chain .sec5 .div_cont .p {
    font-size: 18px;
    line-height: 28px;
  }
}

@media (max-width: 750px) {
  .Chain .sec2 {
    height: auto;
    padding-bottom: 20px;
  }
  .Chain .sec2 .sec2_logo {
    position: relative;
    height: 260px;
    top: 0px;
    transform: none;
  }
  .Chain .sec2 .sec2_logo img {
    position: absolute;
    height: 100%;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
  }
  .Chain .sec2 .cos {
    position: static;
  }
  .Chain .sec4 .sec-tit {
    margin-bottom: 30px;
  }
  .Chain .sec4, .Chain .sec5 {
    padding: 20px 0;
  }
  .Chain .sec4 div.fl, .Chain .sec4 div.fr, .Chain .sec5 div.fl, .Chain .sec5 div.fr {
    float: none;
  }
  .Chain .sec4 .div_logo, .Chain .sec5 .div_logo {
    width: 200px;
    margin: 0 auto;
  }
  .Chain .sec4 .div_logo img, .Chain .sec5 .div_logo img {
    width: 140px;
    margin-bottom: 20px;
  }
  .Chain .sec4 .div_cont, .Chain .sec5 .div_cont {
    width: 100%;
    margin: 0 auto;
  }
  .Chain .sec4 .div_cont .tit, .Chain .sec5 .div_cont .tit {
    font-size: 18px;
  }
  .Chain .sec4 .div_cont .tit a, .Chain .sec5 .div_cont .tit a {
    font-size: 12px;
  }
  .Chain .sec4 .div_cont .p, .Chain .sec5 .div_cont .p {
    font-size: 16px;
    line-height: 20px;
  }
}