*, *:before, *:after {
  box-sizing: border-box; }

body {
  margin: 0; }

.btn, .icon, .vm, .vm-fix, .tag {
  display: inline-block;
  vertical-align: middle; }

.fleft {
  float: left; }

.fright {
  float: right; }

body {
  color: #fff;
  font: 20px/46px 'Play',  sans-serif; }

html, body {
  height: 100%; }

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

.btn {
  cursor: pointer; }

.img {
  display: inline-block;
  vertical-align: middle; }

p, ul {
  margin: 0;
  padding: 0; }

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

.bg {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 10; }
  .bg:after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75) url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAYAAABytg0kAAAAD0lEQVR42mNgZWP/z4AMAA8iARKdWTN+AAAAAElFTkSuQmCC") 0 0 repeat; }
  .bg .video {
    position: absolute;
    left: 50%;
    margin-left: -960px; }

.container {
  position: relative;
  z-index: 12;
  padding: 80px 20px; }

.img-ai {
  width: 742px;
  height: 92px;
  background: url("../images/img-ai.png") 0 0 no-repeat; }

.img-01 {
  width: 544px;
  height: 360px;
  background: url("../images/img1.png") 0 0 no-repeat; }

.img-02 {
  width: 835px;
  height: 440px;
  background: url("../images/img2.gif") 0 0 no-repeat; }

.img-03 {
  display: block;
  max-width: 560px;
  position: relative;
  background-size: contain;
  background-position: center top;
  background-repeat: no-repeat; }
  .img-03:after {
    content: '';
    display: block;
    padding-bottom: 62.5%; }

.img-03-01 {
  background-image: url("../images/img3-1.gif"); }

.img-03-02 {
  background-image: url("../images/img3-2.gif"); }

.img-04 {
  width: 261px;
  height: 296px;
  background: url("../images/img4.png") 0 0 no-repeat; }

.text-title {
  font-size: 42px;
  line-height: 1;
  color: #ffb900; }

.list-a > li {
  float: left; }

.list-a:after {
  content: '';
  display: table;
  clear: both; }

.section {
  padding: 60px 0; }
  .section p {
    padding: 20px 0 40px; }
  .section .list {
    list-style: none; }
  .section:after {
    content: '';
    display: table;
    clear: both; }

.section-head {
  text-align: center; }
  .section-head .text-title {
    margin: 40px 0 0; }

.section-video .video {
  width: 100%;
  position: relative; }
  .section-video .video:before {
    content: '';
    display: block;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; }
  .section-video .video .ytplayer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%; }

.section-01 .yt, .section-01 .img-01 {
  margin: 20px 0 40px 70px; }

.section-03 {
  text-align: center; }
  .section-03 .list-a {
    font-size: 16px;
    line-height: 28px; }
    .section-03 .list-a > li {
      width: 50%;
      padding: 20px; }
    .section-03 .list-a .list-img {
      margin-bottom: 30px; }
  .section-03 .slick-track {
    margin: 0 auto; }

.section-04 .img-04 {
  margin-right: 30px; }

.w640 {
  display: none; }

.config-head {
  margin-bottom: 10px; }

.config-body {
  padding: 10px 0; }
  .config-body .config-item {
    margin-bottom: 15px; }
  .config-body .config-group {
    display: none; }
    .config-body .config-group.active {
      display: block; }

@keyframes shinycolor {
  from {
    color: #ffb900; }
  to {
    color: #fff; } }

.item-text {
  animation: shinycolor 150ms ease;
  animation-fill-mode: both; }

.config-item:nth-child(1) .item-text {
  animation-delay: 150ms; }

.config-item:nth-child(2) .item-text {
  animation-delay: 300ms; }

.config-item:nth-child(3) .item-text {
  animation-delay: 450ms; }

.config-item:nth-child(4) .item-text {
  animation-delay: 600ms; }

.config-item:nth-child(5) .item-text {
  animation-delay: 750ms; }

.config-item {
  border: 2px solid #fff;
  border-radius: 8px;
  padding: 8px;
  text-align: center;
  position: relative;
  padding-left: 50%;
  font-size: 18px;
  line-height: 32px; }
  .config-item .item-title {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 50%;
    background: #fff;
    color: #404040;
    font-size: 22px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center; }

@media (max-width: 640px) {
  body {
    font-size: 16px;
    line-height: 34px; }
  .wrap {
    width: 85%; }
  .section {
    padding: 20px 0; }
  .w1920 {
    display: none; }
  .w640 {
    display: block; }
  .bg .video {
    display: none; }
  .config-item {
    line-height: 24px;
    padding: 16px 0 16px 50%; }
  .text-title {
    font-size: 22px; }
  .img-ai {
    width: 399px;
    height: 50px;
    background: url("../images/640/img-ai.png") 0 0 no-repeat;
    max-width: 100%;
    background-size: contain; }
  .img-01 {
    width: 428px;
    height: 239px;
    background: url("../images/640/img1.png") 0 0 no-repeat; }
  .img-02 {
    width: 382px;
    height: 421px;
    background: url("../images/640/img2.png") 0 0 no-repeat; }
  .section-head .text-title {
    margin-top: 20px; }
  .section-01 {
    display: flex;
    flex-flow: column-reverse; }
    .section-01 .yt {
      margin: 0; }
      .section-01 .yt .video {
        position: relative;
        height: 0;
        padding-bottom: 56.25%; }
        .section-01 .yt .video iframe {
          position: absolute;
          left: 0;
          top: 0;
          width: 100%;
          height: 100%; }
    .section-01 .fright {
      float: none;
      margin-top: 40px;
      text-align: center; }
      .section-01 .fright .img {
        max-width: 100%;
        margin: 0;
        background-size: contain; }
  .section-04 {
    display: flex;
    flex-flow: column-reverse; }
    .section-04 .fleft {
      float: none;
      margin-top: 40px;
      text-align: center; }
      .section-04 .fleft .img {
        max-width: 100%;
        margin: 0;
        background-size: contain; }
  .slick-dots {
    bottom: -45px; }
  .slick-dots li button:before {
    background-color: #fff; }
  .slick-dots li.slick-active button:before {
    background-color: #ffb900; }
  .img-config {
    background-image: url("../images/640/img-config.sprite.png");
    background-repeat: no-repeat;
    display: inline-block; }
    .img-config.active {
      background-image: url("../images/640/img-config_a.sprite.png"); }
  .img-config.img2-1 {
    width: 124px;
    height: 53px;
    background-position: -10px -10px; }
  .img-config.img2-2 {
    width: 55px;
    height: 53px;
    background-position: -10px -73px; }
  .img-config.img2-3 {
    width: 54px;
    height: 54px;
    background-position: -10px -136px; }
  .img-config.img2-4 {
    width: 53px;
    height: 52px;
    background-position: -10px -200px; }
  .config-head {
    display: flex;
    justify-content: space-between; }
    .config-head:before, .config-head:after {
      content: '';
      display: block;
      width: 0;
      height: 0; } }