html,
body {
    height: 100%;
    background: #fff;
}

.video {
    position: relative;
    height: 100vh;
    overflow: hidden;
    background: url(../images/video_bg.jpg) no-repeat center bottom/cover;
    border-top: 6px solid #b40000;
}

.video-layer {
    position: absolute;
    z-index: 15;
    left: 0;
    top: 14vw;
    width: 100%;
    text-align: center;
}

.video-layer img {
    width: 40vw;
}

.mouse {
    position: absolute;
    z-index: 10;
    left: 4vw;
    bottom: 6vw;
}

.fixed {
    position: absolute;
    z-index: 50;
    right: 4vw;
    bottom: 8vw;
}

.fixed ul li {
    position: relative;
    padding: 0 0 30px;
    cursor: pointer;
}

.fixed ul li i {
    display: block;
    text-align: center;
}

.fixed-li-title {
    text-align: center;
    color: #fff;
}

.fixed-li-title .ch {
    font: bold 14px/20px '微软雅黑';
}

.fixed-li-title .en {
    font: 400 14px/20px '微软雅黑';
    opacity: 0.5;
}

.fixed ul li p {
    position: absolute;
    left: 50%;
    bottom: 20px;
    width: 180px;
    margin-left: -90px;
    padding: 5px 10px;
    font: 400 14px/20px '微软雅黑';
    color: #fff;
    text-align: center;
    background: #b40000;
    border-radius: 15px;
    opacity: 0;
    transform: translate3d(0, -50%, 0);
    transition: 0.3s;
}

.fixed ul li:hover p {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}


/* 第1部分 */

.part1 {
    position: relative;
    padding: 75px 0;
}

.part1-main {
    display: flex;
    justify-content: space-between;
    width: 1280px;
    margin: 0 auto;
    overflow: hidden;
}

.part1-left {
    width: 720px;
    padding: 100px 0 0;
    /* opacity: 0;
    transform: translate3d(-50%, 0, 0); */
}

.part1-title {
    color: #000;
    text-align: left;
}

.part1-title .en {
    font: bold 16px/24px '微软雅黑';
}

.part1-title .ch {
    font: bold 30px/36px '微软雅黑';
}

.part1-time {
    text-align: right;
    background: url(../images/part1_line.png) no-repeat 0 bottom;
}

.part1-time p {
    padding-right: 70px;
    font: 400 16px/30px '微软雅黑';
    text-align: right;
}

.part1-year {
    font: 400 16px/18px '微软雅黑';
    color: #000;
}

.part1-year span {
    font: bold 48px/42px '微软雅黑';
    color: #ae0707;
}

.part1-p {
    margin: 60px 0 0;
    font: 400 16px/30px '微软雅黑';
    color: #666;
    text-align: justify;
}

.part1-right {
    width: 484px;
    /* opacity: 0;
    transform: translate3d(50%, 0, 0); */
}

.part1-img {
    text-align: center;
}

.part1-font {
    padding: 60px 0 0;
    text-align: left;
}

.part1-font .ch {
    font: 400 30px/42px '微软雅黑';
    color: #b40000;
}

.part1-font .en {
    margin: 20px 0 60px;
    font: 400 12px/18px '微软雅黑';
    color: #003b74;
    opacity: 0.24;
}

.part1-more {
    text-align: left;
}

.part1-more a {
    display: block;
    width: 100px;
    font: 400 16px/36px '微软雅黑';
    color: #b40000;
    background: url(../images/arrow_next.png) no-repeat right center;
    transition: 0.3s;
}

.part1-more a:hover {
    transform: translate3d(20px, 0, 0);
}


/* 动画 */

.part1-left.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}

.part1-right.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}


/* part2 */

.part2 {
    padding-left: 16vw;
}

.part2-main {
    display: block;
}

.part2-main ul {
    display: flex;
}

.part2-main ul li {
    position: relative;
    width: 16vw;
    overflow: hidden;
    background: url(../images/part2_li_bg.jpg) no-repeat 0 0/cover;
    transition: 0.3s;
}

.part2-main ul li i {
    display: block;
    position: relative;
    z-index: 1;
    left: 0;
    top: 0;
    opacity: 0;
    transition: 0.3s;
}

.part2-main ul li i img {
    width: 52vw;
}

.part2-main ul li a {
    display: block;
    position: absolute;
    z-index: 10;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    padding: 5.2vw 0 0;
}

.part2-li-num {
    padding-left: 12.5vw;
    font: 400 18px/20px '微软雅黑';
    color: #fff;
    background: url(../images/part2_line.png) no-repeat 0 center/12vw;
    transition: 0.3s;
}

.part2-li-icon {
    padding: 6.25vw 0 3.125vw 2.4vw;
}

.part2-li-ch {
    padding: 0 0 0 2.4vw;
    font: bold 30px/30px '微软雅黑';
    color: #fff;
    transition: 0.3s;
}

.part2-li-en {
    padding: 2.5vw 0 8vw 2.4vw;
    font: 400 16px/20px '微软雅黑';
    color: #f76565;
    text-transform: uppercase;
    transition: 0.3s;
}

.part2-li-more {
    width: 185px;
    margin-left: 2.4vw;
    background: url(../images/arrow_w.png) no-repeat 0 center;
    transition: 0.3s;
}

.part2-li-more span {
    position: relative;
    display: block;
    padding-right: 2.4vw;
    text-align: center;
    font: 400 16px/40px '微软雅黑';
    color: #fff;
    border: 2px solid #fff;
    border-radius: 24px;
    opacity: 0;
    transition: 0.3s;
}

.part2-li-more span::before {
    content: '';
    position: absolute;
    z-index: 5;
    right: -2px;
    top: -2px;
    width: 43px;
    height: 43px;
    background: url(../images/arrow_b.png) no-repeat right center;
}

.part2-main ul li.active {
    width: 52vw;
}

.part2-main ul li.active i {
    opacity: 1;
}

.part2-main ul li.active .part2-li-num {
    padding-left: 45vw;
    background-size: 44vw;
}

.part2-main ul li.active .part2-li-ch {
    color: #b40000;
}

.part2-main ul li.active .part2-li-en {
    opacity: 1;
}

.part2-main ul li.active .part2-li-more {
    background-position: -50px center;
}

.part2-main ul li.active .part2-li-more span {
    opacity: 1;
}


/* part3 */

.part3 {
    position: relative;
    height: 32.5vw;
    margin: 5.2vw 0 0;
    background: url(../images/part_ad.jpg) no-repeat center 0/100%;
    /* opacity: 0;
    transform: translate3d(50%, 0, 0); */
}

.part3-layer {
    display: block;
    position: absolute;
    z-index: 10;
    left: 1.8vw;
    top: 11.5vw;
    transition: 0.3s;
}

.part3-layer:hover {
    transform: translate3d(50px, 0, 0);
}


/* 动画 */

.part3.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}


/* part4 */

.part4 {
    padding: 0 0 10vw;
    overflow: hidden;
    background: url(../images/part4_bg.jpg) no-repeat center 0/cover;
}

.part4-main {
    width: 1200px;
    margin: 0 auto;
}

.part4-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 5.2vw 0 2.6vw;
    /* opacity: 0;
    transform: translate3d(-50%, 0, 0); */
}

.part4-title {
    font: 400 36px/42px '微软雅黑';
    color: #003b74;
}

.part4-nav ul {
    display: flex;
}

.part4-nav ul li {
    padding: 0 0 0 40px;
}

.part4-nav ul a {
    display: block;
    padding-right: 30px;
    font: 400 16px/36px '微软雅黑';
    color: #666666;
    transition: 0.3s transform;
}

.part4-nav ul a:hover {
    color: #b40000;
    background: url(../images/arrow_next.png) no-repeat right center;
    transform: translate3d(-10px, 0, 0);
}

.part4-box {
    display: flex;
    justify-content: space-between;
}

.part4-left {
    width: 480px;
    /* opacity: 0;
    transform: translate3d(50%, 0, 0); */
}

.part4-left a {
    display: block;
}

.new-left-img {
    position: relative;
    overflow: hidden;
}

.new-left-img img {
    width: 100%;
    transition: 0.3s;
}

.new-left-time {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 110px;
    font: 400 12px/30px '微软雅黑';
    color: #fff;
    text-align: center;
    background: #b40000;
}

.new-left-font {
    padding: 25px;
    border: 1px solid #004483;
    border-top: 0;
}

.new-left-title {
    overflow: hidden;
    font: 400 18px/30px '微软雅黑';
    color: #000;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.new-left-p {
    height: 120px;
    margin: 10px 0 0;
    overflow: hidden;
    font: 400 16px/30px '微软雅黑';
    color: #666666;
    text-align: justify;
}

.part4-left a:hover .new-left-img img {
    transform: scale(1.1);
}

.part4-right {
    width: 650px;
    /* opacity: 0;
    transform: translate3d(-50%, 0, 0); */
}

.part4-ul {
    display: flex;
    justify-content: space-between;
}

.part4-li {
    width: 314px;
}

.part4-li a {
    display: block;
}

.part4-li-img {
    position: relative;
}

.part4-li i {
    display: block;
    overflow: hidden;
}

.part4-li i img {
    width: 100%;
    transition: 0.3s;
}

.part4-li-time {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 110px;
    font: 400 12px/30px '微软雅黑';
    color: #fff;
    text-align: center;
    background: #b40000;
}

.part4-li-title {
    margin: 15px 0 0;
    overflow: hidden;
    font: 400 16px/30px '微软雅黑';
    color: #000;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.part4-li a:hover i img {
    transform: scale(1.1);
}

.new-ul {
    margin: 28px 0 0;
    border-bottom: 1px solid #dcdcdc;
}

.new-ul li {
    padding: 12px 0;
    border-top: 1px dashed #dcdcdc;
}

.new-ul li a {
    display: flex;
    justify-content: space-between;
    font: 400 16px/30px '微软雅黑';
    color: #000;
    transition: 0.3s;
}

.new-ul li a p {
    flex-grow: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.new-ul li a span {
    width: 84px;
    text-align: right;
    font-size: 14px;
}

.new-ul li a:hover {
    transform: translate3d(20px, 0, 0);
}


/* 动画 */

.part4-top.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.6s;
}

.part4-left.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}

.part4-right.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}


/* part5 */

.part5 {
    padding: 4vw 0;
}

.part5-main {
    display: flex;
    justify-content: space-between;
    width: 1280px;
    margin: 0 auto;
    overflow: hidden;
}

.part5-left {
    width: 640px;
    background: url(../images/part5_img1.png) no-repeat center center/cover;
    /* opacity: 0;
    transform: translate3d(-50%, 0, 0); */
}

.part5-title {
    padding: 4vw 0 1vw;
    text-align: center;
}

.part5-title .ch {
    font: 400 16px/18px '微软雅黑';
    color: #fff;
}

.part5-title .en {
    font: 400 14px/16px '微软雅黑';
    color: #fff;
    opacity: 0.1;
    transform: translate3d(0, -5px, 0);
}

.part5-detail {
    font: bold 0.9vw/2vw '微软雅黑';
    color: #fff;
    text-align: center;
}

.part5-right {
    width: 640px;
    /* opacity: 0;
    transform: translate3d(50%, 0, 0); */
}

.part5-right img {
    width: 100%;
}


/* 动画 */

.part5-left.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}

.part5-right.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}

.link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 1280px;
    margin: 0 auto 60px;
    /* opacity: 0;
    transform: translate3d(50%, 0, 0); */
}

.link-title {
    width: 135px;
    padding: 0 0 0 20px;
    color: #000;
    background: url(../images/link_left.png) no-repeat 0 center;
}

.link-title .ch {
    font: 400 24px/30px '微软雅黑';
}

.link-title .ch span {
    color: #004483;
}

.link-title .en {
    font: 400 12px/16px '微软雅黑';
}

.link-box {
    width: 1145px;
    background: url(../images/link_border.png) no-repeat 0 0/100% 100%;
}

.link-box ul {
    display: flex;
    flex-wrap: wrap;
    padding: 10px 0 10px 30px;
}

.link-box ul li {
    padding: 8px 0;
}

.link-box ul a {
    display: block;
    padding: 0 20px;
    font: 400 16px/20px '微软雅黑';
    color: #000;
    border-left: 1px solid #dcdcdc;
}

.link-box ul a:hover {
    color: #004483;
}


/* 动画 */

.link.animated_visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: 0.6s 0.8s;
}