.file_cont {
  background-color: black;
}
section {
  color: #16202C;
}
section img {
  width: 100%;
}
section.s2 {
  position: relative;
  top: -1px;
  background-image: linear-gradient(to bottom, #E3E6F2 0%, #1E2225 10%);
}
section > .ff {
  width: 100%;
  height: 582px;
  background: url(../images/app4/pc/n22.png) no-repeat;
  background-size: 100% 100%;
}
section > .ff > p {
  text-align: center;
  color: #fff;
  padding-top: 168px;
  font-size: 30px;
}
.big-box {
  width: 1240px;
  margin: 0 auto;
}
.big-box .version {
  margin: 58px 0 67px;
}
.big-box .imgs {
  margin: 60px 0 102px;
  overflow: hidden;
  background: url(../images/app4/pc/n8.png) no-repeat bottom;
  background-size: 100% 190px;
}
.big-box .imgs > img {
  width: 460px;
  height: 246px;
}
.big-box .i2 > .img:nth-child(1) {
  padding-top: 83px;
}
.big-box .i2 > .img:nth-child(2) {
  padding-top: 58px;
}
.big-box .i2 > .img:nth-child(3) {
  padding-top: 18px;
}
.big-box .i2 > .img:nth-child(4) {
  padding-top: 0px;
}
.big-box .imgs2 {
  display: flex;
  justify-content: space-between;
}
.big-box .imgs2 > .img {
  width: 285px;
  text-align: center;
}
.big-box .imgs2 > .img:nth-child(1) {
  padding-top: 83px;
}
.big-box .imgs2 > .img:nth-child(2) {
  padding-top: 58px;
}
.big-box .imgs2 > .img:nth-child(3) {
  padding-top: 18px;
}
.big-box .imgs2 > .img:nth-child(4) {
  padding-top: 0px;
}
.big-box .imgs2 > .img > img {
  width: 100%;
  height: 600px;
}
.big-box .imgs2 > .img > span {
  color: #ffffff;
  font-size: 18px;
  display: inline-block;
  margin: 31px 0 14px;
}
.big-box .i2 > .img:nth-child(4) {
  padding-top: 83px;
}
.big-box .i2 > .img:nth-child(3) {
  padding-top: 58px;
}
.big-box .i2 > .img:nth-child(2) {
  padding-top: 18px;
}
.big-box .i2 > .img:nth-child(1) {
  padding-top: 0px;
}
.out-box {
  padding: 60px 0 56px;
  background: url(../images/app4/pc/n9.png) no-repeat bottom;
}
.out-box .box {
  display: flex;
}
.out-box .box .left .card {
  margin-bottom: 15px;
  display: inline-block;
  padding: 17px 19px;
  background-color: #34383B;
  border-radius: 10px;
  color: #FFFFFF;
}
.out-box .box .left .card:not(:nth-child(3n)) {
  margin-right: 15px;
}
.out-box .box .left .card > h1 {
  color: #14CA89;
  font-size: 24px;
  margin-bottom: 12px;
}
.out-box .box .left .card > .bottom {
  display: flex;
  align-items: flex-start;
}
.out-box .box .left .card > .bottom > span:nth-child(-n+1) {
  display: inline-block;
  width: 108px;
  font-size: 16px;
  margin-right: 45px;
}
.out-box .box .left .card > .bottom > span:nth-child(2) > img {
  width: 40px;
  height: 40px;
}
.out-box .box .right {
  flex-shrink: 0;
  margin-left: 23px;
}
.common-section > h1 {
  padding: 60px 0 27px;
}
.common-section .dic {
  display: flex;
  justify-content: space-between;
}
.common-section .dic .left {
  font-size: 30px;
}
.common-section .dic .left > h2 {
  font-size: 36px;
  text-transform: uppercase;
  padding: 14px;
}
.common-section .dic .left > h2 > span {
  color: #0C49E6;
}
.common-section .dic .right {
  width: 733px;
  border-bottom: 2px solid #0C49E6;
}
.common-section .dic .right > h3 {
  font-size: 16px;
  line-height: 1.5;
  color: #000000;
}
.c2 > .dic .left > h2 {
  padding-left: 0;
}
.c2 > h1,
.c2 h2,
.c2 > .dic .right > h3 {
  color: #ffffff;
}
.oo-box {
  background: url(../images/app4/pc/extra1.png) no-repeat bottom right;
}
.oo-box2 {
  background: url(../images/app4/pc/extra2.png) no-repeat top right;
}