#app {
  min-width: 1400px;
  margin: 0 auto;
  box-sizing: border-box;
  font-size: 14px;
  color: #000;
  --primary-color: #365ca3;
}
#app .btn {
  display: block;
  transform: scale(1);
  transition: transform 0.15s;
}
#app .btn:hover {
  transform: scale(1.05);
}
#app .btn2 {
  width: 333px;
  height: 58px;
  margin: 0 auto;
  background: url(../images/button2_2.png?v=3) no-repeat center;
  background-size: 100% 100%;
}
#app .btn22 {
  width: 333px;
  height: 58px;
  margin: 0 auto;
  background: url(../images/button2_3.png?v=3) no-repeat center;
  background-size: 100% 100%;
}
#app .btn3 {
  width: 255px;
  height: 35px;
  background: url(../images/button3_2.png?v=1) no-repeat center;
  background-size: 100% 100%;
}
#app .btn4 {
  position: absolute;
  left: 185px;
  top: 77px;
  width: 250px;
  height: 34px;
  background: url(../images/button4_2.png?v=1) no-repeat center;
  background-size: 100% 100%;
}
#app h3.title {
  font-size: 40px;
  color: #0c457e;
  text-align: center;
  font-weight: bold;
  letter-spacing: 2px;
}
#app .img-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
#banner {
  position: relative;
  width: 100%;
  font-size: 1920px;
}
#banner a {
  position: absolute;
  bottom: 0.048em;
  left: 0.069em;
  width: 0.137em;
  height: 0.031em;
  cursor: pointer;
}
#banner img {
  display: block;
  width: 100%;
}
#how {
  box-sizing: border-box;
  padding: 70px 0;
}
#how .content {
  margin-top: 74px;
}
#how .content img {
  display: block;
}
#how .content p {
  margin: 50px 0 55px;
  text-align: center;
}
#how .content p i {
  display: inline-block;
  width: 35px;
  height: 27px;
  margin-right: 5px;
  background: url(../images/icon.png) no-repeat center;
  vertical-align: text-bottom;
}
#how .content p span {
  font-size: 22px;
  color: #d20000;
}
#video-wrap {
  padding: 45px 0;
  background-color: #f2f2f2;
}
#video-wrap .text {
  margin-top: 25px;
}
#video-wrap .text p {
  font-size: 16px;
  color: #3e3e3e;
  text-align: center;
  line-height: 30px;
}
#video-wrap .text p span {
  color: #0c457e;
  font-weight: bold;
}
#video-wrap .content {
  margin-top: 23px;
}
#video-wrap .content #video {
  width: 1200px;
  height: 675px;
  margin-bottom: 42px;
}
#industry {
  padding: 70px 0;
}
#industry .content {
  margin-top: 45px;
}
#industry .content ul {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 7px;
}
#industry .content ul li {
  position: relative;
  width: 283px;
  height: 286px;
  margin-bottom: 28px;
}
#industry .content ul li div {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  color: #fff;
  transition: opacity 0.2s ease-in-out;
}
#industry .content ul li div:first-child {
  opacity: 1;
  z-index: 2;
}
#industry .content ul li div:first-child p {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  font-size: 27px;
  text-align: center;
}
#industry .content ul li div:last-child {
  opacity: 0;
  z-index: 1;
  padding: 32px 20px 0;
  background-color: #2a2a2a;
}
#industry .content ul li div:last-child p {
  font-size: 16px;
  line-height: 26px;
}
#industry .content ul li:hover div:first-child {
  opacity: 0;
  z-index: 1;
}
#industry .content ul li:hover div:last-child {
  opacity: 1;
  z-index: 2;
}
#qiye {
  box-sizing: border-box;
  height: 687px;
  padding-top: 50px;
  background: url(../images/qiye_bg.png) no-repeat center;
}
#qiye .content {
  margin-top: 48px;
}
#qiye .content img {
  display: block;
}
#try {
  padding: 70px 0;
  background-color: #9dc8f5;
}
#try .content {
  margin-top: 58px;
}
#try .content .tab {
  display: flex;
}
#try .content .tab li {
  box-sizing: border-box;
  width: 25%;
  height: 94px;
  font-size: 18px;
  color: #0d274d;
  text-align: center;
  background-color: #fff;
  border-left: 1px solid #dee8f3;
  border-right: 1px solid #dee8f3;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
#try .content .tab li.active {
  color: #fff;
  background-color: #0c457e;
}
#try .content .tab li:first-child {
  border-left: none;
}
#try .content .tab li:last-child {
  border-right: none;
}
#try .content .tab-con {
  margin-top: 30px;
  margin-bottom: 50px;
}
#try .content .tab-con > div {
  display: none;
  justify-content: space-between;
}
#try .content .tab-con > div.active {
  display: flex;
}
#try .content .tab-con > div .photo {
  width: 459px;
  height: 485px;
}
#try .content .tab-con > div .photo img {
  display: block;
  width: 100%;
  height: 100%;
}
#try .content .tab-con > div .text {
  box-sizing: border-box;
  width: 710px;
  height: 485px;
  background-color: #0c457e;
  color: #fff;
  padding-left: 40px;
  padding-top: 40px;
}
#try .content .tab-con > div .text > div:first-child {
  min-height: 235px;
}
#try .content .tab-con > div .text > div:last-child {
  position: relative;
}
#try .content .tab-con > div .text h3 {
  font-size: 26px;
  font-weight: 500;
}
#try .content .tab-con > div .text ul {
  margin-top: 15px;
  margin-left: 18px;
}
#try .content .tab-con > div .text ul li {
  list-style: disc;
  font-size: 16px;
  margin-bottom: 6px;
}
#book {
  box-sizing: border-box;
  height: 731px;
  padding-top: 65px;
  background: url(../images/book_bg.png) no-repeat center;
}
#book .content {
  position: relative;
  height: 347px;
  margin-top: 100px;
  background: url(../images/book.png) no-repeat center;
}
#book .content > div {
  position: absolute;
  width: 450px;
  color: #505a71;
}
#book .content > div h3 {
  transform: translateX(-12px);
  font-size: 24px;
}
#book .content > div ul {
  margin: 15px 0 25px 20px;
}
#book .content > div ul li {
  font-size: 18px;
  margin: 4px 0;
  list-style: disc;
}
#book .content > div:first-child {
  left: -20px;
  top: 123px;
}
#book .content > div:last-child {
  left: 850px;
  top: 68px;
}
#book .content > div:last-child .btn {
  margin-top: 75px;
  margin-left: 32px;
}
#about {
  box-sizing: border-box;
  height: 641px;
  padding-top: 80px;
  background: url(../images/about_bg.png) no-repeat center;
  color: #fff;
}
#about .logo {
  margin-bottom: 20px;
}
#about h3 {
  font-size: 48px;
  font-weight: 500;
  margin-bottom: 30px;
}
#about .content p {
  font-size: 20px;
  color: #fff;
  line-height: 36px;
  text-align: justify;
  text-indent: 2em;
  margin-bottom: 35px;
}
#about .content p:last-child {
  margin-bottom: 0;
}