/**!
* 视频动态
* date:2021-04-29
* author: gaoli;
*/
body {
    font-family: 'Microsoft YaHei';
    min-width: 1200px;
}

.block {
    padding: 100px 0 78px 0;
}

.block-tt {
    font-family: 'SourceHanSansCN-Medium';
    font-size: 32px;
    text-align: center;
}
.block:nth-child(even) {
    background-color: #f8f8fa;
}

/* 长江链平台介绍 */
.intro {
    padding-top: 20px;
}

.intro .paragraph {
    font-size: 16px;
    line-height: 36px;
    text-indent: 32px;
    padding-top: 38px;
}

/* 特色应用 */
.app-items {
    padding-top: 40px;
    margin-left: -22px;
}

.app-items .app-item {
    width: calc(33.33% - 22px);
    margin-top: 24px;
    margin-left: 22px;
}

.app-link {
    position: relative;
    display: block;
    height: 280px;
    padding: 34px 30px 0;
    -webkit-box-shadow: 0 3px 18px 0 rgba(19, 92, 185, 0.16);
    box-shadow: 0 3px 18px 0 rgba(19, 92, 185, 0.16);
    background-color: #fff;
    -webkit-transition: all 0.4s ease-in-out;
    transition: all 0.4s ease-in-out;
}

.app-link .title {
    font-family: 'SourceHanSansCN-Medium';
    font-size: 24px;
    color: #333;
}

.app-link .sub-title {
    position: relative;
    font-size: 18px;
    color: #999;
    margin-top: 10px;
    padding-bottom: 11px;
}

.app-link .sub-title:before {
    position: absolute;
    content: '';
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background-color: #2d72ff;
}

.app-link .detail {
    max-height: 96px;
    line-height: 24px;
    margin-top: 34px;
    color: #5c5f6b;
    overflow: hidden;
}

.app-link:hover {
    -webkit-transform: translate(0, -12px);
    transform: translate(0, -12px);
}

.app-link:hover .title,
.app-link:hover .sub-title {
    color: #2d72ff;
}

.app-link:hover :before {
    position: absolute;
    content: '';
    height: 4px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #2d72ff;
}

/* 商用级区块链底层平台 */
.block-floor {
    margin-top: 70px;
}

.block-floor:first-child {
    margin-top: 30px;
}

.block-sub {
    text-align: center;
}

.block-sub .block-sub-tt {
    position: relative;
    display: inline-block;
    font-size: 20px;
    padding: 0 55px;
    text-align: center;
    vertical-align: top;
}

.block-sub .block-sub-tt:before,
.block-sub .block-sub-tt:after {
    position: absolute;
    content: '';
    top: 50%;
    width: 39px;
    height: 15px;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    background-repeat: no-repeat;
}

.block-sub .block-sub-tt:before {
    left: 0;
    background-image: url('../img/plateform_intro/title_icol.png');
}

.block-sub .block-sub-tt:after {
    right: 0;
    background-image: url('../img/plateform_intro/title_icor.png');
}

.plate {
    position: relative;
    width: 1314px;
    height: 967px;
    margin-left: -75px;
    margin-top: 110px;
    color: #5c5f6b;
    background: url('../img/plateform_intro/plate_img.png') no-repeat;
}

.trade-items {
    position: absolute;
    top: 109px;
    left: 201px;
    overflow: hidden;
}

.trade-item {
    width: 150px;
    text-align: center;
    font-size: 15px;
}

.trade-item:nth-child(2) {
    margin-left: 266px;
}

.trade-item:nth-child(3) {
    margin-left: 165px;
}

.trade-item:nth-child(4) {
    margin-left: 65px;
}

.data-items {
    position: absolute;
    top: 182px;
    left: 510px;
}

.data-item {
    font-family: 'SourceHanSansCN-Medium';
    position: absolute;
    width: 262px;
    height: 82px;
    padding-left: 85px;
    border: 1px solid #dce7ef;
    border-radius: 10px;
    -webkit-box-shadow: 0 0 5px rgba(220, 231, 239, 0.1);
    box-shadow: 0 0 5px rgba(220, 231, 239, 0.1);
    background-color: #fff;
    background-repeat: no-repeat;
    background-position: 20px center;
}

.data-item:nth-child(1) {
    top: 0;
    left: 0;
}

.data-item:nth-child(2) {
    top: 16px;
    left: 384px;
}

.data-item:nth-child(3) {
    top: 107px;
    left: 76px;
}

.data-item:nth-child(4) {
    top: 117px;
    left: 545px;
}

.data-item .title {
    font-size: 18px;
    padding-top: 15px;
}

.data-item .detail {
    font-size: 15px;
    padding-top: 2px;
}

.data-items .data-item:nth-child(1) {
    background-image: url('../img/plateform_intro/plate_ico1.png');
}

.data-items .data-item:nth-child(2) {
    background-image: url('../img/plateform_intro/plate_ico2.png');
}

.data-items .data-item:nth-child(3) {
    background-image: url('../img/plateform_intro/plate_ico3.png');
}

.data-items .data-item:nth-child(4) {
    background-image: url('../img/plateform_intro/plate_ico4.png');
}

.system-items {
    position: absolute;
    top: 418px;
    right: -17px;
    width: 1024px;
    height: 550px;
}

.system-item {
    position: absolute;
    font-size: 15px;
}

.system-item:nth-child(1) {
    font-family: 'SourceHanSansCN-Medium';
    font-size: 20px;
    top: 218px;
    left: 50%;
    margin-left: 15px;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
}

.system-item:nth-child(2) {
    top: 214px;
    left: 0;
}

.system-item:nth-child(3) {
    top: 64px;
    left: 170px;
}

.system-item:nth-child(4) {
    top: 20px;
    left: 568px;
}

.system-item:nth-child(5) {
    top: 40px;
    left: 778px;
}

.system-item:nth-child(6) {
    top: 185px;
    right: 0;
}

.system-item:nth-child(7) {
    bottom: 64px;
    right: 177px;
}

.system-item:nth-child(8) {
    bottom: 0;
    right: 463px;
}

.system-item:nth-child(9) {
    bottom: 64px;
    right: 711px;
}

.technical-frame {
    position: relative;
    text-align: center;
    margin-top: 46px;
}

.technical-tt {
    width: 50px;
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background-color: #4d82ee;
}

.technical-tt .text {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    font-size: 20px;
    color: #fff;
}

.technical-content {
    margin-left: 50px;
    background-color: #edf0f2;
    padding: 10px;
}

.layer-box {
    background-color: #fff;
    padding: 10px;
    -webkit-box-shadow: 0 0 10px 0 rgba(79, 79, 79, 0.1);
    box-shadow: 0 0 10px 0 rgba(79, 79, 79, 0.1);
}

.layer-box + .layer-box {
    margin-top: 10px;
}

.layer-tt {
    width: 80px;
    font-size: 16px;
    font-family: 'SourceHanSansCN-Medium';
}

.layer-content {
    border: 1px solid #d8dde3;
    margin-left: 80px;
    height: 78%;
    padding: 10px;
}

.layer-box .layer-list {
    overflow: hidden;
    margin-left: -5px;
}

.layer-box .layer-item {
    font-size: 15px;
    color: #5c5f6b;
    height: 31px;
    line-height: 31px;
}

.layer-box .layer-item .content {
    display: block;
    margin-left: 5px;
}

.application-box {
    height: 95px;
}

.application-box .layer-tt {
    line-height: 90px;
}

.application-box .content {
    background-color: #f1f1f1;
}

.application-box .layer-item + .layer-item {
    width: 33.33%;
    margin-top: 5px;
}

.application-box .layer-item:first-child {
    width: 100%;
}

.matching-left {
    width: 890px;
    height: 287px;
}

.matching-box + .matching-box {
    margin-top: 10px;
}

.interface-box {
    height: 53px;
}

.interface-box .layer-tt {
    line-height: 53px;
}

.interface-box .layer-item {
    width: 33.33%;
}

.interface-box .layer-item .content {
    background-color: #d9edff;
}

.agreement-box {
    height: 125px;
}

.agreement-box .layer-tt {
    line-height: 125px;
}

.agreement-box .content {
    background-color: #e3f2db;
}

.agreement-box .layer-item:first-child {
    width: 100%;
}

.agreement-box .layer-item + .layer-item {
    margin-top: 5px;
}

.agreement-box .layer-item:nth-child(2) {
    width: 33.33%;
}

.agreement-box .layer-item:nth-child(3) {
    width: 33.33%;
}

.agreement-box .layer-item:nth-child(4) {
    width: 33.33%;
}

.agreement-box .layer-item:nth-child(5) {
    width: 25%;
}

.agreement-box .layer-item:nth-child(6) {
    width: 25%;
}

.agreement-box .layer-item:nth-child(7) {
    width: 25%;
}

.agreement-box .layer-item:nth-child(8) {
    width: 25%;
}

.block-box {
    height: 89px;
}

.block-box .layer-tt {
    line-height: 89px;
}

.block-box .layer-item {
    width: 25%;
}

.block-box .layer-item .content {
    background-color: #ffedde;
}

.block-box .layer-item:nth-child(5) {
    margin-top: 5px;
}

.block-box .layer-item:nth-child(6) {
    margin-top: 5px;
}

.block-box .layer-item:nth-child(7) {
    margin-top: 5px;
}

.block-box .layer-item:nth-child(8) {
    margin-top: 5px;
}

.matching-right {
    margin-left: 900px;
    height: 287px;
    padding: 10px;
    -webkit-box-shadow: 0 0 10px 0 rgba(79, 79, 79, 0.1);
    box-shadow: 0 0 10px 0 rgba(79, 79, 79, 0.1);
}

.matching-tt {
    margin-top: 5px;
    font-size: 16px;
    font-family: 'SourceHanSansCN-Medium';
}

.matching-content {
    margin-top: 30px;
}

.matching-item {
    font-size: 15px;
    color: #5c5f6b;
    height: 48px;
    line-height: 48px;
    background-color: #d9edff;
}

.matching-item + .matching-item {
    margin-top: 5px;
}

.basic-box {
    height: 51px;
}

.basic-box .layer-tt {
    line-height: 31px;
}

.basic-box .layer-content {
    border: none;
    padding: 0;
    overflow: hidden;
}

.basic-box .layer-item {
    width: 33.33%;
}

.basic-box .layer-item .content {
    background-color: #f1f1f1;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

.banner {
    height: 431px;
    color: #fff;
    border-bottom: 2px solid #e1e1e1;
     background: url("../img/introduction/banner_bg.jpg") no-repeat center top;
    background-size: 100% 100%;
}

.banner .container {
    box-sizing: border-box;
    position: relative;
    padding-right: 440px;
}

.banner-wrap {
    padding-top: 160px;
}

.banner-tt {
    font-size: 56px;
    font-weight: bold;
    background: -webkit-linear-gradient(90deg, #fff 20%, #a8dcfc 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.banner-info {
    font-size: 16px;
    height: 90px;
    line-height: 30px;
    padding-top: 25px;
    overflow: hidden;
}

.login {
    box-sizing: border-box;
    position: absolute;
    top: 112px;
    right: 43px;
    width: 265px;
    height: 290px;
    padding: 32px 70px 0;
    text-align: center;
    border: 5px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    background-color: rgba(4, 29, 89, 0.5);
}

.login-tt {
    font-size: 20px;
}

.login-img {
    display: inline-block;
    width: 108px;
    height: 108px;
    margin-top: 20px;
    vertical-align: top;
}

.login-img img {
    width: 100%;
    height: 100%;
}

.login-info {
    height: 40px;
    line-height: 20px;
    padding-top: 16px;
    overflow: hidden;
}

/* 政策背景 */
.module {
    padding: 75px 0;
    overflow: hidden;
}

.module-hd {
    height: 30px;
    line-height: 30px;
    text-align: center;
}

.module-tt {
    position: relative;
    font-size: 28px;
    font-weight: bold;
    padding: 0 20px;
    display: inline-block;
    vertical-align: top;
}

.module-tt:before,
.module-tt:after {
    position: absolute;
    content: '';
    width: 515px;
    height: 2px;
    top: 50%;
    transform: translateY(-50%);
}

.module-tt:before {
    left: -515px;
    background-image: linear-gradient(to left, #d8dded, transparent);
}

.module-tt:after {
    right: -515px;
    background-image: linear-gradient(to right, #d8dded, transparent);
}

.policy-bd {
    font-size: 18px;
    line-height: 34px;
    text-indent: 30px;
    padding: 36px 46px 0;
}

/* 视频介绍 */
.video {
    background: url('../img/introduction/video_img.jpg') no-repeat center top;
    background-size: 100% 100%;
}

.video-bd {
    margin-top: 72px;
}

.video-bd video {
    display: block;
    width: 100%;
    height: 675px;
    box-shadow: 0 0 15px 0 rgba(16, 56, 122, 0.15);
}

/* 互认平台 */
.plate-bd {
    padding: 70px 10px 0;
}

.plate-wrap {
    height: 180px;
    padding-bottom: 20px;
    margin-bottom: 60px;
}

.plate-items {
    font-size: 0;
}

.plate-item {
    display: inline-block;
    width: 333px;
    height: 160px;
    margin: 0 30px;
    vertical-align: top;
}

.plate-link {
    display: block;
    line-height: 160px;
    font-size: 30px;
    border-radius: 5px;
    color: #333;
    text-align: center;
    box-shadow: 0 10px 10px 0 rgba(0, 0, 0, 0.1);
    background: url('../img/introduction/plate_bg.png') no-repeat;
    background-size: 100% 100%;
}

.app-title {
    width: 100%;
    margin: 60px 0 50px 0;
    font-size: 32px;
    line-height: 32px;
    font-weight: bold;
    color: #333;
    text-align: center;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

.intro-paragraph {
    margin-bottom: 34px;
    line-height: 36px;
    font-size: 16px;
}
.style-app {
    overflow: hidden;
    padding-top: 90px;
    width: 100%;
    height: 680px;
    background: url('../img/plateform_intro/styleapp.png') no-repeat;
    background-size: 100% 100%;
    box-sizing: border-box;
}
.apps::after {
    content: '';
    display: block;
    clear: both;
}
.app {
    float: left;
    position: relative;
    top: 0;
    padding: 50px 30px 60px 30px;
    width: 384px;
    height: 360px;
    margin-right: 24px;
    background-color: #fff;
    box-sizing: border-box;
    box-shadow: 0 0 5px 0 #dfe5ed;
    transition: top 0.5s;
    user-select: none;
    cursor: pointer;
}
.app:hover {
    top: -8px;
    border-bottom: 4px solid #2d72ff;
}
.app:last-child {
    margin: 0;
}

.app:hover .app-name {
    color: #2d72ff;
}
.app-name {
    position: relative;
    margin-bottom: 60px;
    font-size: 24px;
    color: #333;
    font-weight: bold;
}
.app-name::after {
    position: absolute;
    top: 50px;
    left: 0;
    display: block;
    content: '';
    width: 46px;
    height: 2px;
    background-color: #2d72ff;
}
.app-desc {
    font-size: 14px;
    color: #5c5f6b;
    line-height: 26px;
}