.head_chain {
  width: 100%;
  height: 80px;
  display: flex;
  background: rgba(100, 162, 199, 0.8); }
  .head_chain div:nth-child(1) {
    width: 167px;
    height: 100px;
    margin-left: 90px;
    background-image: url("../img/chain/chain_logo.png");
    background-size: 100% 100%; }
    .head_chain div:nth-child(1) a {
      display: block;
      height: 100%; }
  .head_chain div:nth-child(2) {
    width: 132px;
    height: 40px;
    border: 1px solid #FFFFFF;
    line-height: 40px;
    text-align: center;
    font-size: 14px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #FFFFFF;
    cursor: pointer;
    margin-left: 1387px;
    margin-top: 20px; }

.head_img {
  width: 100%;
  height: 635px;
  background-image: url("../img/chain/head_img.png");
  background-size: 100% 100%; }
  .head_img div {
    width: 100%;
    text-align: center;
    line-height: 735px !important;
    font-size: 56px;
    font-family: SimHei;
    font-weight: 400;
    color: #FFFFFF;
    line-height: 13px;
    text-shadow: 0px 6px 4px rgba(0, 0, 0, 0.59);
    margin: auto; }

.chain_function {
  height: 183px;
  padding-top: 100px; }
  .chain_function p {
    width: 300px;
    margin: auto;
    text-align: center;
    line-height: 60px; }
    .chain_function p:nth-child(1) {
      font-size: 43px;
      font-weight: 500; }
    .chain_function p:nth-child(2) {
      font-size: 26px;
      color: gray; }

.function_info {
  width: 1560px;
  height: 301px;
  border: 1px dashed  #000000;
  margin: auto; }
  .function_info div {
    margin: 28px 0 0 48px;
    width: 1471px;
    height: 222px;
    font-size: 27px;
    font-family: SimHei;
    font-weight: 400;
    color: #919191; }

.characteristic {
  height: 183px;
  padding-top: 100px; }
  .characteristic p {
    text-align: center; }
    .characteristic p:nth-child(1) {
      font-size: 32px;
      color: gray; }
    .characteristic p:nth-child(2) {
      padding-top: 8px;
      font-size: 13px;
      color: gray; }

.characteristic_info {
  display: flex;
  justify-content: space-between;
  width: 1600px;
  margin: auto; }
  .characteristic_info .characteristic_info_left {
    width: 779px;
    height: 270px;
    background-image: url("../img/chain/big1.png");
    background-size: 100% 100%; }
    .characteristic_info .characteristic_info_left div {
      padding: 53px 0 0 106px;
      width: 635px;
      word-break: break-all;
      font-size: 24px;
      font-family: Adobe Heiti Std;
      font-weight: normal;
      color: #7C7B7B; }
  .characteristic_info .characteristic_info_right {
    width: 779px;
    height: 270px;
    background-image: url("../img/chain/big2.png");
    background-size: 100% 100%; }
    .characteristic_info .characteristic_info_right div {
      padding: 53px 0 0 106px;
      width: 635px;
      word-break: break-all;
      font-size: 24px;
      font-family: Adobe Heiti Std;
      font-weight: normal;
      color: #7C7B7B; }

.features {
  height: 183px;
  padding-top: 100px; }
  .features p {
    text-align: center; }
    .features p:nth-child(1) {
      font-size: 32px;
      color: gray; }
    .features p:nth-child(2) {
      padding-top: 8px;
      font-size: 13px;
      color: gray; }

.features_info {
  display: flex;
  justify-content: space-between;
  width: 1650px;
  margin: auto; }
  .features_info div {
    padding: 80px 33px 0 85px;
    word-break: break-all;
    font-size: 21px;
    font-family: Adobe Heiti Std;
    font-weight: normal;
    color: #7C7B7B;
    width: 285px;
    height: 312px;
    line-height: 30px;
    background-size: 100% 100%; }
    .features_info div:nth-child(1) {
      background-image: url("../img/chain/s1.png"); }
    .features_info div:nth-child(2) {
      background-image: url("../img/chain/s2.png"); }
    .features_info div:nth-child(3) {
      background-image: url("../img/chain/s3.png"); }
    .features_info div:nth-child(4) {
      background-image: url("../img/chain/s4.png"); }

.map {
  margin: auto;
  margin-top: 121px;
  width: 1316px;
  height: 1159px;
  background-image: url("../img/chain/map.png");
  background-size: 100% 100%; }

.chain_copyright {
  height: 183px;
  padding-top: 100px; }
  .chain_copyright p {
    width: 100%;
    text-align: center;
    line-height: 60px; }
    .chain_copyright p:nth-child(1) {
      font-size: 43px;
      font-weight: 500; }
    .chain_copyright p:nth-child(2) {
      font-size: 26px;
      color: gray; }

.chain_copyright_title {
  border-bottom: 1px solid #7C7B7B;
  width: 646px;
  margin-left: 200px;
  font-weight: 500;
  font-size: 37px;
  color: #626262; }
  .chain_copyright_title span {
    margin-left: 50px;
    font-size: 15px; }

.copyright_info {
  display: flex;
  justify-content: space-between;
  width: 1436px;
  margin: auto;
  margin-top: 100px; }
  .copyright_info div {
    border: 1px dashed #7C7B7B;
    width: 375px;
    height: 280px;
    padding: 38px 44px 0 42px;
    font-size: 16px;
    color: #919191;
    line-height: 35px; }

.chain_rights_title {
  border-bottom: 1px solid #7C7B7B;
  width: 505px;
  margin-left: 200px;
  font-weight: 500;
  font-size: 37px;
  color: #626262;
  margin-top: 100px;
  margin-bottom: 80px; }
  .chain_rights_title span {
    margin-left: 50px;
    font-size: 15px; }

.protection_info {
  width: 1359px;
  margin: auto;
  margin-top: 44px;
  border: 1px dashed #626262;
  padding: 35px 45px 50px 35px;
  font-size: 20px;
  font-family: Adobe Heiti Std;
  font-weight: normal;
  color: #919191;
  line-height: 36px; }