/**
 *
 * @Author: wxm
 * @Date: 2016-11-01
 *
 **/
/* CSS Reset */
body, div, span, object, iframe, input, h1, h2, h3, h4, h5, h6, p, pre, a, acronym, address, code, del, em, font, img, ins, strong, b, i, dl, dt, dd, ol, ul, li, fieldset, form, label, table, tbody, tfoot, thead, tr, th, td {
  padding: 0;
  margin: 0; }

table {
  border-collapse: collapse;
  border-spacing: 0; }

ins {
  text-decoration: none; }

del {
  text-decoration: line-through; }

input, select {
  vertical-align: middle; }

input, textarea, select {
  font: 12px/1.5 "microsoft yahei", Arial, sans-serif; }

fieldset, img {
  border: 0; }

address, code, th, em {
  font-style: normal; }

ol, ul {
  list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-size: 100%; }

/* bass css */
body {
  margin: 0 auto;
  font: 14px/1.5 "microsoft yahei", Arial, sans-serif;
  color: #2d2928;
  background: #fff; }

button {
  font: 14px/1.5 "microsoft yahei", Arial, sans-serif;
  outline: none; }

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

.minwidth {
  width: 1024px; }

.clearfix:after {
  content: "";
  height: 0;
  visibility: hidden;
  display: block;
  clear: both; }

.clearfix {
  zoom: 1; }

.clear {
  clear: both; }

a {
  text-decoration: none;
  outline: none;
  cursor: pointer; }

.fl {
  float: left; }

.fr {
  float: right; }

.hide {
  display: none !important; }

.show {
  display: block !important; }

.box {
  position: relative; }

.no-border {
  border-bottom: none !important; }

input {
  box-sizing: content-box;
  outline: none; }

input::-ms-clear {
  display: none; }

input::-ms-clear {
  width: 0;
  height: 0; }

::-ms-reveal {
  width: 0;
  height: 0; }

.color-red {
  color: #e64100; }

a.color-red:hover {
  text-decoration: underline; }

/*===== color =====*/
/*font*/
/*===== png =====*/
/*png*/
/*==== font ====*/
/*==== bg ====*/
/*==== opacity ====*/
/*==== placeholder ====*/
/**
 * animate.css
 * @wxm (you@example.org)
 * @date    2017-02-28 16:22:33
 * @version $Id$
 */
/*云移动*/
@-webkit-keyframes moveLeftRight {
  0% {
    opacity: 1;
    -webkit-transform: none;
    transform: none; }

  50% {
    opacity: 0.4;
    -webkit-transform: translate3d(200%, 0, 0);
    transform: translate3d(200%, 0, 0); }

  80% {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0); }

  100% {
    opacity: 0.4;
    -webkit-transform: translate3d(-200%, 0, 0);
    transform: translate3d(-200%, 0, 0); } }

@keyframes moveLeftRight {
  0% {
    opacity: 1;
    -webkit-transform: none;
    transform: none; }

  50% {
    opacity: 0.4;
    -webkit-transform: translate3d(200%, 0, 0);
    transform: translate3d(200%, 0, 0); }

  80% {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0); }

  100% {
    opacity: 0.4;
    -webkit-transform: translate3d(-200%, 0, 0);
    transform: translate3d(-200%, 0, 0); } }

@-webkit-keyframes flipInX {
  from {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0; }

  40% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in; }

  60% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1; }

  80% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -5deg); }

  to {
    -webkit-transform: perspective(400px);
    transform: perspective(400px); } }

@keyframes flipInX {
  from {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in;
    opacity: 0; }

  40% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    -webkit-animation-timing-function: ease-in;
    animation-timing-function: ease-in; }

  60% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    opacity: 1; }

  80% {
    -webkit-transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    transform: perspective(400px) rotate3d(1, 0, 0, -5deg); }

  to {
    -webkit-transform: perspective(400px);
    transform: perspective(400px); } }

/*文字发光*/
@-webkit-keyframes flashLight {
  0% {
    text-shadow: 0 0 0.2em #fee851, 0 0 0.2em #fee851; }

  100% {
    text-shadow: 0 0 1.5em #fff, 0 0 1.5em #fff; } }

@keyframes flashLight {
  0% {
    text-shadow: 0 0 0.2em #fee851, 0 0 0.2em #fee851; }

  100% {
    text-shadow: 0 0 1.5em #fff, 0 0 1.5em #fff; } }

@-webkit-keyframes upsidedown {
  0% {
    transform: translate3d(0, 0, 0);
    -webkit-transform: translate3d(0, 0, 0); }

  100% {
    transform: translate3d(0, 10px, 0);
    -webkit-transform: translate3d(0, 10px, 0); } }

@keyframes upsidedown {
  0% {
    transform: translate3d(0, 0, 0);
    -webkit-transform: translate3d(0, 0, 0); }

  100% {
    transform: translate3d(0, 10px, 0);
    -webkit-transform: translate3d(0, 10px, 0); } }

/*二维码旋转*/
@-webkit-keyframes rotateAround {
  0% {
    transform: none;
    -webkit-transform: none; }

  10% {
    transform: rotateY(0deg);
    -webkit-transform: rotateY(0deg); }

  30% {
    transform: rotateY(180deg);
    -webkit-transform: rotateY(180deg); }

  50% {
    transform: none;
    -webkit-transform: none; }

  70% {
    transform: rotateX(0deg);
    -webkit-transform: rotateX(0deg); }

  80% {
    transform: rotateX(180deg);
    -webkit-transform: rotateX(180deg); }

  90% {
    transform: none;
    -webkit-transform: none; }

  100% {
    transform: none;
    -webkit-transform: none; } }

@keyframes rotateAround {
  0% {
    transform: none;
    -webkit-transform: none; }

  10% {
    transform: rotateY(0deg);
    -webkit-transform: rotateY(0deg); }

  30% {
    transform: rotateY(180deg);
    -webkit-transform: rotateY(180deg); }

  50% {
    transform: none;
    -webkit-transform: none; }

  70% {
    transform: rotateX(0deg);
    -webkit-transform: rotateX(0deg); }

  80% {
    transform: rotateX(180deg);
    -webkit-transform: rotateX(180deg); }

  90% {
    transform: none;
    -webkit-transform: none; }

  100% {
    transform: none;
    -webkit-transform: none; } }

/*左右摇晃*/
@-webkit-keyframes leftToRight {
  0% {
    transform: none;
    -webkit-transform: none; }

  30% {
    transform: rotateZ(10deg);
    -webkit-transform: rotateZ(10deg); }

  80% {
    transform: rotateZ(-10deg);
    -webkit-transform: rotateZ(-10deg); }

  100% {
    transform: none;
    -webkit-transform: none; } }

@keyframes leftToRight {
  0% {
    transform: none;
    -webkit-transform: none; }

  30% {
    transform: rotateZ(10deg);
    -webkit-transform: rotateZ(10deg); }

  80% {
    transform: rotateZ(-10deg);
    -webkit-transform: rotateZ(-10deg); }

  100% {
    transform: none;
    -webkit-transform: none; } }

/*缩放*/
@-webkit-keyframes scale {
  0% {
    opacity: 1;
    transform: none;
    -webkit-transform: none; }

  50% {
    opacity: 1;
    transform: translate3d(6%, 6%, 0);
    -webkit-transform: translate3d(6%, 6%, 0); }

  100% {
    opacity: 1;
    transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0);
    -webkit-transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0); } }

@keyframes scale {
  0% {
    opacity: 1;
    transform: none;
    -webkit-transform: none; }

  50% {
    opacity: 1;
    transform: translate3d(6%, 6%, 0);
    -webkit-transform: translate3d(6%, 6%, 0); }

  100% {
    opacity: 1;
    transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0);
    -webkit-transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0); } }

@-webkit-keyframes scale2 {
  0% {
    opacity: 1;
    transform: none;
    -webkit-transform: none; }

  50% {
    opacity: 1;
    transform: translate3d(-6%, 6%, 0);
    -webkit-transform: translate3d(-6%, 6%, 0); }

  100% {
    opacity: 1;
    transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0);
    -webkit-transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0); } }

@keyframes scale2 {
  0% {
    opacity: 1;
    transform: none;
    -webkit-transform: none; }

  50% {
    opacity: 1;
    transform: translate3d(-6%, 6%, 0);
    -webkit-transform: translate3d(-6%, 6%, 0); }

  100% {
    opacity: 1;
    transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0);
    -webkit-transform: scale3d(0.96, 0.96, 1) translate3d(0, 6%, 0); } }

@-webkit-keyframes scale3 {
  0% {
    opacity: 1;
    transform: none;
    -webkit-transform: none; }

  100% {
    opacity: 1;
    transform: scale3d(0.4, 0.4, 1) translate3d(0, 6%, 0);
    -webkit-transform: scale3d(0.4, 0.4, 1) translate3d(0, 6%, 0); } }

@keyframes scale3 {
  0% {
    opacity: 1;
    transform: none;
    -webkit-transform: none; }

  100% {
    opacity: 1;
    transform: scale3d(0.4, 0.4, 1) translate3d(0, 6%, 0);
    -webkit-transform: scale3d(0.4, 0.4, 1) translate3d(0, 6%, 0); } }

@-webkit-keyframes fadeInDown {
  from {
    opacity: 0;
    -webkit-transform: translate3d(0, -50px, 0);
    transform: translate3d(0, -50px, 0); }

  to {
    opacity: 1;
    -webkit-transform: none;
    transform: none; } }

@keyframes fadeInDown {
  from {
    opacity: 0;
    -webkit-transform: translate3d(0, -50px, 0);
    transform: translate3d(0, -50px, 0); }

  to {
    opacity: 1;
    -webkit-transform: none;
    transform: none; } }
/**
 * index.scss
 * @authors wxm (you@example.org)
 * @date    2017-04-06 17:10:45
 * @version $Id$
 */
html, body {
  height: 100%;
  width: 100%; }

body {
  background: #fff;
  overflow: hidden; }

.main-cont-wrap {
  height: 100%;
  width: 100%; }

.main-cont {
  height: 100%;
  height: 100%; }

.section {
  height: 100%;
  height: 100%;
  overflow: hidden; }

.side-menu {
  position: fixed;
  z-index: 100;
  top: 50%;
  right: 1.5%;
  margin-top: -83px; }
  .side-menu li {
    position: relative;
    width: 14px;
    height: 14px;
    margin: 22px 0; }
    .side-menu li a {
      position: absolute;
      display: block;
      top: 50%;
      left: 50%;
      width: 14px;
      height: 14px;
      margin-left: -7px;
      margin-top: -7px;
      -webkit-transition: transform ease-in-out 0.5s;
      transition: transform ease-in-out 0.5s;
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr.png") 1px -14px no-repeat; }
      .side-menu li a:hover {
        background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr.png") 1px 1px no-repeat; }
    .side-menu li i {
      display: block;
      width: 14px;
      height: 14px;
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr.png") 1px 1px no-repeat;
      filter: alpha(opacity=0);
      -webkit-transform: scale(0, 0);
      transform: scale(0, 0);
      -webkit-transition: transform ease-in-out 0.5s;
      transition: transform ease-in-out 0.5s; }
    .side-menu li.active a {
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr.png") 1px -14px no-repeat;
      -webkit-transform: scale(0, 0);
      transform: scale(0, 0);
      filter: alpha(opacity=0); }
    .side-menu li.active i {
      display: block;
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr.png") 1px 1px no-repeat;
      -webkit-transform: scale(1, 1);
      transform: scale(1, 1);
      filter: alpha(opacity=100); }

/*第一屏*/
.section0 {
  position: relative;
  background: #fbb730;
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-perspective: 400px;
  perspective: 400px; }
  .section0 .top-part {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: all linear 0.5s;
    -webkit-transition: all linear 0.5s; }
    .section0 .top-part > img {
      position: absolute;
      height: auto; }
  .section0 .center-wrap {
    display: table;
    padding-top: 1.67%;
    width: 100%;
    height: 100%; }
  .section0 .center-cont {
    display: table-cell;
    vertical-align: middle; }
  .section0 .img-mid {
    position: relative;
    display: block;
    width: 25.3%;
    margin: 0 auto;
    opacity: 0;
    -webkit-transform: rotateY(200deg) translate3d(0, -30%, 0);
    transform: rotateY(200deg) translate3d(0, -30%, 0);
    transition: all linear 0.5s;
    -webkit-transition: all linear 0.5s; }
  .section0 .sub-tit {
    position: relative;
    font-size: 28px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.8em;
    text-shadow: 0 0 0.2em #fee851, 0 0 0.2em #fee851;
    opacity: 0;
    -webkit-transform: translate3d(0, -80%, 0);
    transform: translate3d(0, -80%, 0);
    transition: all linear 0.5s 0.28s;
    -webkit-transition: all linear 0.5s 0.28s;
    animation: flashLight 0.8s linear 0.78s infinite alternate;
    -webkit-animation: flashLight 0.8s linear 0.78s infinite alternate; }
  .section0 .btn-load-wrap {
    width: 100%;
    margin: 1.889% 0;
    text-align: center;
    opacity: 0;
    -webkit-transform: translate3d(0, -80%, 0);
    transform: translate3d(0, -80%, 0);
    transition: all linear 0.5s 0.35s;
    -webkit-transition: all linear 0.5s 0.35s; }
  .section0 .btn-load {
    position: relative;
    display: inline-block;
    *zoom: 1;
    *display: inline;
    width: 12.479%; }
    .section0 .btn-load img {
      display: block;
      width: 100%;
      height: auto; }
    .section0 .btn-load .btn-hover {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: auto;
      display: none; }
    .section0 .btn-load:hover .btn-hover {
      display: block; }
  .section0 .img-ppt-wrap {
    position: relative;
    top: 4.074%; }
  .section0 .img-ppt {
    position: relative;
    display: block;
    width: 46.125%;
    height: auto;
    margin: 0 auto;
    z-index: 3;
    opacity: 0;
    -webkit-transform: translate3d(0, -30%, 0);
    transform: translate3d(0, -30%, 0);
    transition: all linear 0.8s 0.42s;
    -webkit-transition: all linear 0.8s 0.42s; }
  .section0 .img-ppt1 {
    position: absolute;
    top: 13.452%;
    left: 50%;
    width: 46.125%;
    height: auto;
    margin-left: -24.0625%;
    z-index: 2;
    opacity: 0;
    -webkit-transform: translate3d(0, -50%, 0);
    transform: translate3d(0, -50%, 0);
    transition: all linear 0.4s 0.7s;
    -webkit-transition: all linear 0.4s 0.7s; }
  .section0 .img-bg-l {
    left: 0;
    bottom: 0;
    width: 27.5%;
    opacity: 0;
    -webkit-transform: translate3d(0, 50%, 0);
    transform: translate3d(0, 50%, 0);
    transition: all linear 0.8s;
    -webkit-transition: all linear 0.8s; }
  .section0 .img-bg-r {
    right: 0;
    bottom: 0;
    width: 27.5%;
    opacity: 0;
    -webkit-transform: translate3d(0, 50%, 0);
    transform: translate3d(0, 50%, 0);
    transition: all linear 0.8s;
    -webkit-transition: all linear 0.8s; }
  .section0 .img-cloud1 {
    top: 22%;
    left: 13%;
    width: 5.521%;
    animation: moveLeftRight 20s linear 0.6s infinite alternate;
    -webkit-animation: moveLeftRight 20s linear 0.6s infinite alternate; }
  .section0 .img-cloud2 {
    top: 50%;
    left: 21%;
    width: 3.125%;
    animation: moveLeftRight 16s linear 1s infinite alternate;
    -webkit-animation: moveLeftRight 16s linear 1s infinite alternate; }
  .section0 .img-cloud3 {
    top: 40%;
    right: 13%;
    width: 4.583%;
    animation: moveLeftRight 20s linear 0.8s infinite alternate;
    -webkit-animation: moveLeftRight 20s linear 0.8s infinite alternate; }
  .section0 .btm-part {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 23.3%;
    background: #fff;
    text-align: center;
    transform: translate3d(0, 100%, 0);
    -webkit-transform: translate3d(0, 100%, 0);
    opacity: 0;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1);
    transform: translate3d(0, -10%, 0) rotateX(-90deg);
    -webkit-transform: translate3d(0, -10%, 0) rotateX(-90deg); }
    .section0 .btm-part:before {
      position: absolute;
      top: -2px;
      left: 50%;
      margin-left: -15px;
      content: "";
      width: 0;
      height: 0;
      border-left: 17px solid transparent;
      border-right: 17px solid transparent;
      border-top: 30px solid #fbb730; }
  .section0 h2 {
    padding-top: 3.578%;
    text-align: center; }
    .section0 h2 img {
      width: 452px; }

.section0.active .top-part {
  height: 76.7%; }
.section0.active .img-mid {
  opacity: 1;
  -webkit-transform: none;
  transform: none; }
.section0.active .sub-tit {
  opacity: 1;
  -webkit-transform: none;
  transform: none; }
.section0.active .btn-load-wrap {
  opacity: 1;
  -webkit-transform: none;
  transform: none; }
.section0.active .img-ppt, .section0.active .img-ppt1 {
  opacity: 1;
  -webkit-transform: none;
  transform: none; }
.section0.active .img-bg-l, .section0.active .img-bg-r {
  opacity: 1;
  -webkit-transform: none;
  transform: none; }
.section0.active .btm-part {
  opacity: 1;
  -webkit-transform: none;
  transform: none; }

/*第二屏*/
.section1 {
  position: relative;
  text-align: center;
  background: url('https://image.101.com/ppt/cn/bk/sh-promotion/bg-sec1.2.jpg') center bottom no-repeat #fff;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-perspective: 400px;
  perspective: 400px; }
  .section1 .track-wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 70%;
    margin-left: -35%;
    margin-top: -23.6%;
    z-index: 2; }
  .section1 .img-circle {
    display: block;
    width: 100%;
    margin: 0 auto;
    opacity: 0;
    transform-origin: 50% 90%;
    -webkit-transform-origin: 50% 90%;
    transform: scale3d(0, 0, 0);
    -webkit-transform: scale3d(0, 0, 0);
    transition: all 1s cubic-bezier(0.77, 0, 0.175, 1);
    -webkit-transition: all 1s cubic-bezier(0.77, 0, 0.175, 1); }
  .section1 .dot1 {
    position: absolute;
    top: 7.469%;
    left: 6.454%;
    width: 1.304%;
    animation: scale3 linear 2s infinite alternate;
    -webkit-animation: scale3 linear 2s infinite alternate; }
  .section1 .dot2 {
    position: absolute;
    top: 28.469%;
    left: -7.546%;
    width: 2.304%;
    animation: scale3 linear 2s infinite alternate 0.2s;
    -webkit-animation: scale3 linear 2s infinite alternate 0.2s; }
  .section1 .dot3 {
    position: absolute;
    bottom: 6.669%;
    left: -4.746%;
    width: 0.804%;
    animation: scale3 linear 2s infinite alternate 0.1s;
    -webkit-animation: scale3 linear 2s infinite alternate 0.1s; }
  .section1 .dot4 {
    position: absolute;
    top: 12.669%;
    right: -3.646%;
    width: 1.304%;
    animation: scale3 linear 2s infinite alternate 0.2s;
    -webkit-animation: scale3 linear 2s infinite alternate 0.2s; }
  .section1 .dot5 {
    position: absolute;
    top: 13.969%;
    right: 10.054%;
    width: 0.604%;
    animation: scale3 linear 2s infinite alternate 0.1s;
    -webkit-animation: scale3 linear 2s infinite alternate 0.1s; }
  .section1 .dot6 {
    position: absolute;
    bottom: 28.369%;
    right: -0.54%;
    width: 1.904%;
    animation: scale3 linear 2s infinite alternate;
    -webkit-animation: scale3 linear 2s infinite alternate; }
  .section1 .ico-hmc {
    position: absolute;
    top: 15.31%;
    left: 10.7%;
    width: 6.714%;
    opacity: 0;
    transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1);
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1); }
  .section1 .ico-hsgj {
    position: absolute;
    top: 40.6%;
    left: -3.3%;
    width: 8.018%;
    opacity: 0;
    transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.1s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.1s; }
  .section1 .ico-jzbx {
    position: absolute;
    top: 44.6%;
    left: 8.6%;
    width: 7.692%;
    opacity: 0;
    transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.18s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.18s; }
  .section1 .ico-xgf {
    position: absolute;
    bottom: 16.8%;
    left: 0.5%;
    width: 6.584%;
    opacity: 0;
    transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(100%, 30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.28s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.28s; }
  .section1 .ico-mq {
    position: absolute;
    bottom: 16.9%;
    left: 10.9%;
    width: 8.344%;
    opacity: 0;
    transform: translate3d(100%, -30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(100%, -30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.35s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.35s; }
  .section1 .ico-wygj {
    position: absolute;
    top: 18.5%;
    right: -2.5%;
    width: 8.083%;
    opacity: 0;
    transform: translate3d(-100%, -30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(-100%, -30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.12s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.12s; }
  .section1 .ico-szk {
    position: absolute;
    top: 30.1%;
    right: 13%;
    width: 6.323%;
    opacity: 0;
    transform: translate3d(-100%, 30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(-100%, 30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.2s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.2s; }
  .section1 .ico-dlt {
    position: absolute;
    top: 42.1%;
    right: 6.1%;
    width: 6.584%;
    opacity: 0;
    transform: translate3d(-100%, 30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(-100%, 30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.26s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.26s; }
  .section1 .ico-ktzj {
    position: absolute;
    bottom: 15%;
    right: 10.1%;
    width: 7.366%;
    opacity: 0;
    transform: translate3d(-100%, 30%, 0) scale3d(0, 0, 0);
    -webkit-transform: translate3d(-100%, 30%, 0) scale3d(0, 0, 0);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.3s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.3s; }
  .section1 .sec2-cont-wrap {
    position: relative;
    display: table;
    width: 100%;
    height: 100%;
    z-index: 5; }
  .section1 .sec2-cont {
    display: table-cell;
    vertical-align: middle;
    width: 100%; }
  .section1 .center-video-wrap {
    position: relative;
    display: inline-block;
    width: 39.546%;
    margin: 0 auto 0;
    border: 2px solid #fff;
    border-radius: 2px;
    box-shadow: 0 0 60px #c4d8df;
    -webkit-box-shadow: 0 0 60px #c4d8df;
    overflow: hidden;
    opacity: 0;
    transform: translate3d(0, -20%, 0) rotateX(-30deg);
    -webkit-transform: translate3d(0, -20%, 0) rotateX(-30deg);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.1s;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1) 0.1s; }
    .section1 .center-video-wrap img {
      display: block;
      width: 100%;
      height: auto; }
    .section1 .center-video-wrap:hover .mask-layer {
      opacity: 0.4;
      filter: alpha(opacity=40); }
  .section1 .txt-wrap {
    text-align: center;
    opacity: 0;
    transform: translate3d(0, -80%, 0);
    -webkit-transform: translate3d(0, -80%, 0);
    transition: all 0.8s ease-in-out 0.3s;
    -webkit-transition: all 0.8s ease-in-out 0.3s; }
    .section1 .txt-wrap h4 {
      padding-top: 0.588%;
      font-size: 28px;
      color: #29b3e1; }
    .section1 .txt-wrap p {
      padding-top: 0.2%;
      font-size: 20px;
      color: #57b8d9; }
    .section1 .txt-wrap .tit-video {
      position: relative;
      display: inline-block;
      padding-left: 44px;
      font-size: 28px;
      color: #37474f;
      font-weight: normal; }
      .section1 .txt-wrap .tit-video:before {
        position: absolute;
        top: 50%;
        left: 0;
        content: "";
        width: 30px;
        height: 26px;
        margin-top: -13px;
        background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr2.png") -526px 0 no-repeat; }
  .section1 .mask-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #464646;
    opacity: 0;
    filter: alpha(opacity=0);
    transition: all linear 0.15s;
    -webkit-transition: all linear 0.15s; }
  .section1 .btn-play {
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    height: 34.201%;
    text-align: center;
    cursor: default; }
    .section1 .btn-play img {
      margin: 0 auto;
      width: 20%;
      height: auto;
      cursor: pointer;
      transform-origin: 50% 50%;
      -webkit-transform-origin: 50% 50%;
      transition: all linear 0.38s;
      -webkit-transition: all linear 0.38s; }
      .section1 .btn-play img:hover {
        transform: rotateZ(50deg);
        -webkit-transform: rotateZ(50deg); }
  .section1 .btm-video-list {
    width: 100%;
    text-align: center;
    padding-top: 1.4%; 
    opacity: 0;
    transform: translate3d(0, -80%, 0);
    -webkit-transform: translate3d(0, -80%, 0);
    transition: all 0.8s ease-in-out 0.38s;
    -webkit-transition: all 0.8s ease-in-out 0.38s; }
  .section1 .video-nav-item {
    background: rgba(255, 255, 255, 0.5); }
    .section1 .video-nav-item:hover {
      border-color: #e3eaec;
      background: white;
      box-shadow: 5px 5px 10px #cbe0e7;
      -webkit-box-shadow: 5px 5px 10px #cbe0e7; }
  .section1 .video-item-s {
    display: inline-block;
    *zoom: 1;
    *display: inline;
    width: 10.3875%;
    border: 1px solid #8befdc;
    margin: 0 2.344%;
    opacity: 0;
    transform: translate3d(0, -100%, 0);
    -webkit-transform: translate3d(0, -100%, 0);
    transition: all 0.5s linear;
    -webkit-transition: all 0.5s linear; }
    .section1 .video-item-s:nth-child(1) {
      transition-delay: 0.3s;
      -webkit-transition-delay: 0.3s; }
    .section1 .video-item-s:nth-child(2) {
      transition-delay: 0.33s;
      -webkit-transition-delay: 0.33s; }
    .section1 .video-item-s:nth-child(3) {
      transition-delay: 0.33s;
      -webkit-transition-delay: 0.33s; }
    .section1 .video-item-s:nth-child(4) {
      transition-delay: 0.3s;
      -webkit-transition-delay: 0.3s; }
    .section1 .video-item-s .item-wrap {
      position: relative;
      margin: 1%; }
      .section1 .video-item-s .item-wrap .mask-layer {
        background: #999;
        opacity: 0.3;
        filter: alpha(opacity=30); }
      .section1 .video-item-s .item-wrap:hover .mask-layer {
        opacity: 0.2;
        filter: alpha(opacity=20); }
    .section1 .video-item-s .btn-play {
      position: absolute;
      height: 43.823%;
      bottom: 16px; }
      .section1 .video-item-s .btn-play img {
        width: 30%;
        height: auto; }
    .section1 .video-item-s img {
      display: block;
      width: 100%;
      height: auto;
      box-sizing: border-box;
      -webkit-box-sizing: border-box; }
    .section1 .video-item-s p {
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 34px;
      line-height: 34px;
      text-align: center;
      font-size: 18px;
      color: #fff;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/bg-alpha70.png") repeat; }

.section1.active .ico-hmc, .section1.active .ico-hsgj, .section1.active .ico-jzbx, .section1.active .ico-xgf, .section1.active .ico-mq, .section1.active .img-circle, .section1.active .ico-wygj, .section1.active .ico-szk, .section1.active .ico-dlt, .section1.active .ico-ktzj, .section1.active .img-circle, .section1.active .center-video-wrap, .section1.active .txt-wrap, .section1.active .video-item-s, .section1.active .btm-video-list {
  opacity: 1;
  -webkit-transform: none;
  transform: none; }
.section1.active .ico-hmc {
  animation: scale linear 2.8s infinite alternate 0.8s;
  -webkit-animation: scale linear 2.8s infinite alternate 0.8s; }
.section1.active .ico-hsgj {
  animation: scale linear 2.5s infinite alternate 1.3s;
  -webkit-animation: scale linear 2.5s infinite alternate 1.3s; }
.section1.active .ico-jzbx {
  animation: scale linear 2.9s infinite alternate 1.3s;
  -webkit-animation: scale linear 2.9s infinite alternate 1.3s; }
.section1.active .ico-xgf {
  animation: scale linear 2.4s infinite alternate 1.4s;
  -webkit-animation: scale linear 2.4s infinite alternate 1.4s; }
.section1.active .ico-mq {
  animation: scale linear 2.6s infinite alternate 1.8s;
  -webkit-animation: scale linear 2.6s infinite alternate 1.8s; }
.section1.active .ico-wygj {
  animation: scale2 linear 2.6s infinite alternate 0.9s;
  -webkit-animation: scale2 linear 2.6s infinite alternate 0.9s; }
.section1.active .ico-szk {
  animation: scale2 linear 2.8s infinite alternate 1.2s;
  -webkit-animation: scale2 linear 2.8s infinite alternate 1.2s; }
.section1.active .ico-dlt {
  animation: scale2 linear 2.8s infinite alternate 1.4s;
  -webkit-animation: scale2 linear 2.8s infinite alternate 1.4s; }
.section1.active .ico-ktzj {
  animation: scale2 linear 2.4s infinite alternate 1.6s;
  -webkit-animation: scale2 linear 2.4s infinite alternate 1.6s; }

/*第三屏*/
.section2 {
  position: relative;
  background: #dbf6ff;
  display: table;
  width: 100%; }
  .section2 .bg-cloud-wrap {
    position: absolute;
    width: 100%;
    height: 80%;
    opacity: 0;
    -webkit-transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1);
    transition: all 0.8s cubic-bezier(0.77, 0, 0.175, 1); }
  .section2 .bg-cloud1, .section2 .bg-cloud2 {
    position: absolute;
    left: 50%;
    bottom: 0;
    margin-left: -960px;
    width: 1920px;
    height: 78.426%;
    background: #fff; }
    .section2 .bg-cloud1 img, .section2 .bg-cloud2 img {
      position: absolute;
      width: 100%; }
  .section2 .bg-cloud1 {
    z-index: 3; }
    .section2 .bg-cloud1 img {
      top: -113px;
      height: 113px;
      animation: upsidedown linear 0.9s infinite alternate 0.8s;
      -webkit-animation: upsidedown linear 0.9s infinite alternate 0.8s; }
  .section2 .bg-cloud2 {
    z-index: 2; }
    .section2 .bg-cloud2 img {
      top: -203px;
      height: 203px;
      animation: upsidedown linear 0.6s infinite alternate 1.3s;
      -webkit-animation: upsidedown linear 0.6s infinite alternate 1.3s; }
  .section2 .sec3-ico-list-wrap {
    position: relative;
    z-index: 4;
    display: table-cell;
    vertical-align: middle;
    padding-top: 2.1%; }
  .section2 .sec3-ico-list {
    text-align: center; }
  .section2 .sec3-ico-item {
    display: inline-block;
    *zoom: 1;
    *display: inline;
    width: 11.82%;
    margin: 0 7.812%;
    padding-top: 6.1%; }
    .section2 .sec3-ico-item p {
      padding-top: 3.4%;
      font-size: 22px;
      text-align: center;
      overflow: hidden;
      white-space: nowrap;
      text-overflow: ellipsis;
      opacity: 0; }
  .section2 .ico1 p {
    color: #26c6da;
    opacity: 0;
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1);
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1); }
  .section2 .ico1 .ico-wrap {
    opacity: 0;
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: rotate3d(0, 0, 1, -45deg);
    transform: rotate3d(0, 0, 1, -45deg);
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1);
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1); }
  .section2 .ico2 p {
    color: #ffb71b;
    opacity: 0;
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.28s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.28s; }
  .section2 .ico2 .ico-wrap {
    opacity: 0;
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: rotate3d(0, 0, 1, -45deg);
    transform: rotate3d(0, 0, 1, -45deg);
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.28s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.28s; }
  .section2 .ico3 p {
    color: #42c889;
    opacity: 0;
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.4s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.4s; }
  .section2 .ico3 .ico-wrap {
    opacity: 0;
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: rotate3d(0, 0, 1, -45deg);
    transform: rotate3d(0, 0, 1, -45deg);
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.4s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.4s; }
  .section2 .ico4 p {
    color: #a3ab26;
    opacity: 0;
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.5s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.5s; }
  .section2 .ico4 .ico-wrap {
    opacity: 0;
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: rotate3d(0, 0, 1, -45deg);
    transform: rotate3d(0, 0, 1, -45deg);
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.5s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.5s; }
  .section2 .ico5 p {
    color: #f56b68;
    opacity: 0;
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.58s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.58s; }
  .section2 .ico5 .ico-wrap {
    opacity: 0;
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: rotate3d(0, 0, 1, -45deg);
    transform: rotate3d(0, 0, 1, -45deg);
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.58s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.58s; }
  .section2 .ico6 p {
    color: #8f4fbd;
    opacity: 0;
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.65s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.65s; }
  .section2 .ico6 .ico-wrap {
    opacity: 0;
    -webkit-transform-origin: left bottom;
    transform-origin: left bottom;
    -webkit-transform: rotate3d(0, 0, 1, -45deg);
    transform: rotate3d(0, 0, 1, -45deg);
    -webkit-transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.65s;
    transition: all 1.2s cubic-bezier(0.77, 0, 0.175, 1) 0.65s; }
  .section2 .ico-wrap {
    position: relative;
    width: 100%; }
    .section2 .ico-wrap img {
      width: 100%; }
    .section2 .ico-wrap .img-ico {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      transform-origin: 50% 50%;
      -webkit-transform-origin: 50% 50%;
      animation: leftToRight linear 3.4s infinite forwards 1.2s;
      -webkit-animation: leftToRight linear 3.4s infinite forwards 1.2s; }

.section2.active .bg-cloud-wrap {
  opacity: 1;
  height: 100%;
  transform: none;
  -webkit-transform: none; }
.section2.active .sec3-ico-item p {
  opacity: 1; }
.section2.active .sec3-ico-item .ico-wrap {
  opacity: 1;
  transform: none;
  -webkit-transform: none; }

/*第四屏*/
.section3 {
  position: relative; }
  .section3:before {
    position: absolute;
    top: 0;
    left: 50%;
    margin-left: -15px;
    content: "";
    width: 0;
    height: 0;
    border-left: 17px solid transparent;
    border-right: 17px solid transparent;
    border-top: 30px solid #fff;
    z-index: 5; }
  .section3 .bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden; }
    .section3 .bg-img .img-wrap {
      position: absolute;
      top: -30px;
      left: 50%;
      width: 125%;
      height: 125%;
      margin-left: -62.5%; }
    .section3 .bg-img img {
      width: 100%;
      height: 100%; }
  .section3 .bg-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #f1e592;
    opacity: 0.3;
    filter:alpha(opacity=30); }
  .section3 .class-room-wrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%; }
  .section3 .img-blackboard {
    position: absolute;
    left: 16.77%;
    width: 36.718%;
    opacity: 0;
    top: -30%;
    transition: all cubic-bezier(0.77, 0, 0.175, 1) 0.5s;
    -webkit-transition: all cubic-bezier(0.77, 0, 0.175, 1) 0.5s; }
    .section3 .img-blackboard img {
      width: 100%; }
  .section3 .img-teacher {
    position: absolute;
    bottom: 0;
    left: 3.542%;
    width: 37.24%;
    opacity: 0;
    left: -8%;
    transition: all cubic-bezier(0.77, 0, 0.175, 1) 0.8s;
    -webkit-transition: all cubic-bezier(0.77, 0, 0.175, 1) 0.8s; }
    .section3 .img-teacher img {
      width: 100%; }
  .section3 .img-student {
    position: absolute;
    bottom: -10px;
    left: 4.942%;
    width: 40.393%; }
    .section3 .img-student img {
      width: 100%; }
  .section3 .right-cont-wrap {
    float: right;
    width: 54%;
    height: 100%;
    display: table;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    -webkit-perspective: 400px;
    perspective: 400px; }
  .section3 .right-cont {
    position: relative;
    display: table-cell;
    vertical-align: middle;
    text-align: center;
    padding-top: 4.37%;
    z-index: 3;
    opacity: 0;
    -webkit-transition: all 1s cubic-bezier(0.77, 0, 0.175, 1);
    transition: all 1s cubic-bezier(0.77, 0, 0.175, 1);
    transform: translate3d(0, -20%, 0) rotateX(-90deg);
    -webkit-transform: translate3d(0, -20%, 0) rotateX(-90deg); }
    .section3 .right-cont h3 {
      font-size: 58px;
      color: #ff9206;
      letter-spacing: 0.05em; }
    .section3 .right-cont p {
      line-height: 1;
      font-size: 18px;
      color: #d17e16; }
  .section3 .btn-load {
    position: relative;
    display: block;
    margin: 40px auto;
    width: 274px;
    height: 74px;
    line-height: 74px;
    text-align: center;
    font-size: 34px;
    color: #ff9206;
    letter-spacing: 0.5em;
    border: 2px solid #ff9206;
    padding-left: 0.5em;
    border-radius: 74px;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    background: none;
    overflow: hidden;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
    z-index: 0; }
    .section3 .btn-load:hover {
      border-color: #fff;
      box-shadow: 0 0 10px #f9e4b7; }
      .section3 .btn-load:hover:before {
        width: 274px; }
    .section3 .btn-load:before {
      position: absolute;
      top: 0;
      right: 0;
      content: "";
      width: 0px;
      height: 70px;
      border-radius: 70px;
      background: #fee6b4;
      z-index: -1;
      transition: all 0.4s cubic-bezier(0.77, 0, 0.175, 1);
      -webkit-transition: all 0.4s cubic-bezier(0.77, 0, 0.175, 1); }
  .section3 .ewm-wrap {
    text-align: center; }
    .section3 .ewm-wrap dt {
      position: relative;
      display: inline-block;
      *zoom: 1;
      *display: inline; }
    .section3 .ewm-wrap .img-ewm-bg {
      display: block;
      width: 124px;
      animation: rotateAround 8s cubic-bezier(0.17, 0.67, 0.47, 0.99) infinite forwards 1s;
      -webkit-animation: rotateAround 8s cubic-bezier(0.17, 0.67, 0.47, 0.99) infinite forwards 1s; }
    .section3 .ewm-wrap .img-ewm {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 114px;
      height: 114px;
      margin-top: -57px;
      margin-left: -57px; }
    .section3 .ewm-wrap dd {
      font-size: 18px;
      color: #d17e16;
      letter-spacing: 0.18em; }

.section3.active {
  opacity: 1;
  transform: none;
  -webkit-transform: none; }
  .section3.active .img-blackboard {
    opacity: 1;
    top: 4.926%;
    transform: none;
    -webkit-transform: none; }
  .section3.active .img-teacher {
    opacity: 1;
    left: 3.542%;
    transform: none;
    -webkit-transform: none; }
  .section3.active .right-cont {
    opacity: 1;
    transform: none;
    -webkit-transform: none; }

.mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #37474f;
  opacity: 0.9;
  filter: alpha(opacity=90);
  display: none;
  z-index: 101; }

.section-video {
  position: absolute;
  top: 0;
  left: 50%;
  width: 80%;
  height: 100%;
  margin-left: -40%;
  display: none;
  z-index: 102; }
  .section-video .btn-close {
    position: absolute;
    right: -52px;
    top: 5%;
    width: 46px;
    height: 46px;
    z-index: 5;
    background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr.png") -19px 0 no-repeat;
    transition: transform 0.5s cubic-bezier(0.17, 0.67, 0.47, 0.99);
    -webkit-transition: transform 0.5s cubic-bezier(0.17, 0.67, 0.47, 0.99); }
    .section-video .btn-close:hover {
      transform: roateZ(90deg);
      -webkit-transform: roateZ(90deg);
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr.png") -68px 0 no-repeat; }

.video-box {
  width: 100%;
  height: 100%;
  display: table; }
  .video-box .inner {
    position: relative;
    display: table-cell;
    vertical-align: middle;
    width: 100%; }
  .video-box .inner, .video-box .video-wrap, .video-box .video {
    width: 100%; }

.no-download video {
  background: #000; }
  .no-download video::-internal-media-controls-download-button {
    display: none; }
  .no-download video::-webkit-media-controls-enclosure {
    overflow: hidden; }
  .no-download video::-webkit-media-controls-panel {
    width: calc(100% + 30px); }

/*二次改版的样式开始*/
.wrapper {
  width: 1200px;
  margin: 0 auto; }

.blue-line {
  display: block;
  width: 100%;
  margin: 54px auto; }

.link-see-intro {
  display: inline-block;
  margin-top: 16px;
  font-size: 16px;
  color: #396a46; }
  .link-see-intro:hover {
    text-decoration: underline; }

/*首页*/
/**
 * 改版后增加视频列表页
 * @authors Ywxm (you@example.org)
 * @date    2017-07-17 16:37:29
 * @version $Id$
 */
/*视频列表页*/
.video-list-page {
  overflow-y: auto; }

.video-top-header {
  padding: 54px 0 18px;
  text-align: right;
  box-shadow: 0 0 10px #f1f1f1;
  -webkit-box-shadow: 0 0 10px #f1f1f1;
  background: #fff; }
  .video-top-header h2 {
    display: block;
    padding-bottom: 12px; }
    .video-top-header h2 img {
      display: block;
      margin: 0 auto;
      width: 452px;
      height: auto; }
  .video-top-header .btn-back {
    position: relative;
    display: inline-block;
    padding-right: 26px;
    font-size: 12px;
    color: #878787; }
    .video-top-header .btn-back:before {
      position: absolute;
      top: 50%;
      right: 5px;
      content: "";
      width: 14px;
      height: 14px;
      margin-top: -7px;
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr2.png") -565px 0 no-repeat; }
    .video-top-header .btn-back:hover {
      color: #ff9206; }
      .video-top-header .btn-back:hover:before {
        background-position: -565px -15px; }

.video-nav-wrap {
  padding: 23px 0 25px;
  background: #f7f7f7; }

.video-nav-list {
  font-size: 0;
  text-align: center; }

.video-nav-item {
  position: relative;
  display: inline-block;
  width: 292px;
  height: 152px;
  margin: 0 5px;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  border: 1px solid #e3eaec;
  border-radius: 10px;
  background: #fff; }
  .video-nav-item.ico-hdgj a {
    padding-left: 126px; }
    .video-nav-item.ico-hdgj a:before {
      width: 60px;
      height: 60px;
      margin-top: -30px;
      background-position: -525px -37px; }
  .video-nav-item.ico-xkgj a {
    padding-left: 126px; }
    .video-nav-item.ico-xkgj a:before {
      width: 74px;
      height: 60px;
      margin-top: -30px;
      background-position: -598px 0px; }
  .video-nav-item.ico-rhxjxt {
    margin-right: 0; }
    .video-nav-item.ico-rhxjxt a {
      padding-left: 126px; }
      .video-nav-item.ico-rhxjxt a:before {
        width: 64px;
        height: 66px;
        margin-top: -33px;
        background-position: -598px -71px; }
  .video-nav-item.ico-rjaz {
    margin-left: 0; }
    .video-nav-item.ico-rjaz a {
      padding-left: 106px; }
      .video-nav-item.ico-rjaz a:before {
        width: 58px;
        height: 58px;
        margin-top: -29px;
        background-position: -525px -104px; }
  .video-nav-item:after {
    position: absolute;
    bottom: 10px;
    left: 0;
    content: "";
    width: 100%;
    height: 2px;
    background: #ebebeb; }
  .video-nav-item:hover, .video-nav-item.on {
    border-color: #29b3e1;
    box-shadow: 5px 5px 10px #e4e4e4; }
    .video-nav-item:hover:after, .video-nav-item.on:after {
      background: #bee8f6; }
    .video-nav-item:hover a:before, .video-nav-item.on a:before {
      transform: rotateY(-360deg);
      -webkit-transform: rotateY(-360deg); }
  .video-nav-item a {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    padding: 34px 10px 34px 126px;
    text-align: left;
    box-sizing: border-box;
    -webkit-box-sizing: border-box; }
    .video-nav-item a:before {
      position: absolute;
      content: "";
      top: 50%;
      left: 34px;
      background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr2.png") no-repeat;
      transition: transform cubic-bezier(0.17, 0.67, 0.64, 0.94) 0.5s;
      -webkit-transition: transform cubic-bezier(0.17, 0.67, 0.64, 0.94) 0.5s; }
  .video-nav-item h3 {
    font-weight: normal;
    font-size: 20px;
    color: #37474f;
    margin-top: 12px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis; }
  .video-nav-item .btn-see-more {
    display: block;
    font-size: 12px;
    color: #797979;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis; }

.video-cont {
  background: #fff;
  padding-bottom: 110px; }

.video-list {
  width: 1220px;
  margin-left: -20px;
  padding-top: 34px;
  animation: fadeInDown linear 0.5s;
  -webkit-animation: fadeInDown linear 0.5s; }

.video-list-item {
  float: left;
  margin-left: 20px;
  margin-bottom: 30px;
  width: 285px; }
  .video-list-item a {
    display: block; }
    .video-list-item a:hover {
      box-shadow: 5px 5px 14px #e9e8e8;
      -webkit-box-shadow: 5px 5px 14px #e9e8e8; }
      .video-list-item a:hover img {
        transform: scale(1.05, 1.05);
        -webkit-transform: scale(1.05, 1.05); }
      .video-list-item a:hover .intro-wrap {
        background: #fff; }
      .video-list-item a:hover h3 {
        color: #ff9206; }
  .video-list-item .img-wrap {
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: url('https://image.101.com/ppt/cn/bk/sh-promotion/video-default.jpg') center center no-repeat;
    background-size: 100%; }
  .video-list-item img {
    display: block;
    width: 100%;
    height: 100%;
    transition: transform linear 0.2s;
    -webkit-transition: transform linear 0.2s; }
  .video-list-item .intro-wrap {
    padding: 15px 10px 20px 10px;
    background: #f7f7f7;
    transition: all linear 0.5s;
    -webkit-transition: all linear 0.5s; }
  .video-list-item h3 {
    font-weight: normal;
    font-size: 16px;
    color: #37474f;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis; }
  .video-list-item .kind-tab {
    padding-top: 3px;
    font-size: 12px;
    color: #878787;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis; }

.btn-loading-more {
  position: relative;
  display: block;
  height: 50px;
  line-height: 50px;
  text-align: center;
  font-size: 14px;
  color: #878787;
  background: #f7f7f7;
  cursor: pointer;
  z-index: 2; }
  .btn-loading-more:before {
    position: absolute;
    bottom: 0;
    left: 0;
    content: "";
    width: 100%;
    height: 0%;
    background: #f7f7f7;
    transition: all cubic-bezier(0.17, 0.67, 0.64, 0.94) 0.2s;
    -webkit-transition: all cubic-bezier(0.17, 0.67, 0.64, 0.94) 0.2s;
    z-index: -1; }
  .btn-loading-more:hover:before {
    height: 100%;
    background: #edebeb; }

.go-top {
  position: fixed;
  bottom: 178px;
  right: 5%;
  width: 24px;
  font-size: 12px;
  line-height: 1.4;
  color: #878787;
  padding: 30px 8px 10px;
  border: 1px solid #e4e4e4;
  background: #fff; }
  .go-top:before {
    position: absolute;
    content: "";
    top: 10px;
    left: 50%;
    width: 22px;
    height: 13px;
    margin-left: -11px;
    background: url("https://image.101.com/ppt/cn/bk/sh-promotion/spr2.png") -598px -150px no-repeat; }
  .go-top:hover {
    color: #fff;
    background: #ff9206; }
    .go-top:hover:before {
      background-position: -629px -150px; }

/*心联网教育logo处理*/
.logo-xlwjy {
position: fixed;
left: 62px;
top: 31px;
width: 200px;
height: 132px; }
.logo-xlwjy a, .logo-xlwjy img {
  display: block;
  cursor: default;
  width: 100%;
  height: 100%; }

/*视频列表页*/
/**
 * media-chang.css
 * @authors wxm (you@example.org)
 * @date    2017-04-16 15:53:23
 * @version $Id$
 */
@media screen and (max-width: 1681px) {
  .section1 .txt-wrap h4 {
    font-size: 24px; }
  .section1 .txt-wrap p {
    font-size: 14px; }
  .section1 .video-item-s {
    width: 13.4875%; }
  .section1 .txt-wrap .tit-video {
    font-size: 26px; }
    .section1 .txt-wrap .tit-video:before {
      margin-top: -11px; }
  .section1 .video-nav-item {
    width: 259px;
    height: 127px; }
    .section1 .video-nav-item h3 {
      font-size: 16px;
      margin-top: 5px; }
    .section1 .video-nav-item a:before {
      left: 25px; }
    .section1 .video-nav-item.ico-hdgj a {
      padding-left: 108px; }
    .section1 .video-nav-item.ico-xkgj a {
      padding-left: 118px; }
    .section1 .video-nav-item.ico-rhxjxt a {
      padding-left: 110px; }
    .section1 .video-nav-item.ico-rjaz a {
      padding-left: 100px; }

  .blue-line {
    margin: 24px auto; }

  .section2 .sec3-ico-item p {
    font-size: 16px; }
 }

@media screen and (max-width: 1606px) {
  .section0 .img-mid {
    width: 25.3%; }
  .section0 .sub-tit {
    font-size: 23px; }
  .section0 .btn-load-wrap {
    margin: 1.089% 0; }
  .section0 .btn-load {
    width: 12.779%; }
  .section0 h2 img {
    width: 452px; }

  .section1 .track-wrap {
    width: 70%;
    margin-left: -35%; }
  .section1 .center-video-wrap {
    width: 41.046%; }
  .section1 .video-item-s {
    width: 10.4875%; }
    .section1 .video-item-s p {
      height: 24px;
      line-height: 24px;
      font-size: 12px; }
    .logo-xlwjy {
    top: 20px;
    left: 40px;
    width: 160px;
    height: 106px; }
  .section1 .video-nav-item {
    width: 216px;
    height: 100px; }
    .section1 .video-nav-item h3 {
      font-size: 15px;
      margin-top: 5px; }
    .section1 .video-nav-item a {
      padding: 20px 10px 20px 106px; }
      .section1 .video-nav-item a:before {
        left: 25px; }
    .section1 .video-nav-item.ico-hdgj a {
      padding-left: 90px; }
      .section1 .video-nav-item.ico-hdgj a:before {
        width: 46px;
        height: 46px;
        margin-top: -23px;
        background-position: 0 -175px; }
    .section1 .video-nav-item.ico-xkgj a {
      padding-left: 90px; }
      .section1 .video-nav-item.ico-xkgj a:before {
        width: 46px;
        height: 44px;
        margin-top: -22px;
        background-position: -58px -178px; }
    .section1 .video-nav-item.ico-rhxjxt a {
      padding-left: 90px; }
      .section1 .video-nav-item.ico-rhxjxt a:before {
        width: 50px;
        height: 50px;
        margin-top: -25px;
        background-position: -115px -176px; }
    .section1 .video-nav-item.ico-rjaz a {
      padding-left: 100px; }
      .section1 .video-nav-item.ico-rjaz a:before {
        width: 56px;
        height: 46px;
        margin-top: -23px;
        background-position: -178px -178px; }
 }

@media screen and (min-width: 1398px) and (max-width: 1443px) {
  .section0 .img-mid {
    width: 27.3%; }
  .section0 .sub-tit {
    font-size: 30px; }
  .section0 .btn-load-wrap {
    margin: 1.889% 0; }
  .section0 .btn-load {
    width: 14.479%; }
  .section0 h2 img {
    width: 452px;}

  .section1 .track-wrap {
    width: 80%;
    margin-left: -40%; }
  .section1 .center-video-wrap {
    width: 46.146%; }
  .section1 .video-item-s {
    width: 13.4875%; }
    .section1 .video-item-s p {
      height: 26px;
      line-height: 26px;
      font-size: 14px; }

  .section2 .sec3-ico-item p {
    font-size: 16px; }
 }

@media screen and (min-width: 1366px) and (max-width: 1398px) {
  .section0 .img-mid {
    top: 0.726%;
    width: 24.8%; }
  .section0 .sub-tit {
    font-size: 20px; }
  .section0 .btn-load-wrap {
    margin: 0.789% 0; }
  .section0 .btn-load {
    width: 12.979%; }
  .section0 h2 img {
    width: 452px; }

  .section1 .track-wrap {
    width: 67%;
    margin-left: -33.5%; }
  .section1 .center-video-wrap {
    width: 37.646%; }
  .section1 .txt-wrap h4 {
    padding-top: 0.588%;
    font-size: 22px; }
  .section1 .txt-wrap p {
    font-size: 14px; }
  .section1 .video-item-s {
    width: 9.6875%; }
    .section1 .video-item-s p {
      height: 24px;
      line-height: 24px;
      font-size: 13px; }

  .section2 .sec3-ico-item {
    width: 12.2%;
    padding-top: 3.3%;
    margin: 0 7.012%; }
    .section2 .sec3-ico-item p {
      font-size: 16px; }
 }

@media screen and (max-width: 1288px) and (min-width: 1000px) {
  .section0 .img-mid {
    top: 0.726%;
    width: 24.6%; }
  .section0 .sub-tit {
    font-size: 20px; }
  .section0 .btn-load-wrap {
    margin: 1.289% 0; }
  .section0 .btn-load {
    width: 13.479%; }
  .section0 h2 img {
    width: 452px; }

  .section1 .track-wrap {
    width: 74%;
    margin-left: -37%; }
  .section1 .center-video-wrap {
    width: 38.846%; }
  .section1 .txt-wrap h4 {
    padding-top: 0.588%;
    font-size: 20px; }
  .section1 .txt-wrap p {
    font-size: 12px; }
  .section1 .video-item-s {
    width: 11.9875%; }
    .section1 .video-item-s p {
      height: 24px;
      line-height: 24px;
      font-size: 13px; }

  .section2 .sec3-ico-item {
    width: 12.2%;
    padding-top: 3.3%;
    margin: 0 7.012%; }
    .section2 .sec3-ico-item p {
      font-size: 12px; }
 }
.no-download  video{
  background: #000;
}
.no-download  video::-internal-media-controls-download-button{
    display: none;
}
.no-download  video::-webkit-media-controls-enclosure{
    overflow:hidden;
}
.no-download  video::-webkit-media-controls-panel{
    width: calc(100% + 30px);
}