#app {
  min-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
  font-size: 14px;
  color: #000;
}
#app .btn {
  display: block;
  width: 225px;
  height: 56px;
  background: url(../images/btn1.png) no-repeat center;
  transform: scale(1);
  transition: transform 0.15s;
}
#app .btn:hover {
  transform: scale(1.03);
}
#app h3.title {
  font-size: 44px;
  color: #083b6e;
  text-align: center;
  letter-spacing: 2px;
}
#app .img-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
#banner {
  height: 900px;
  background: url(../images/banner.png?v=1) no-repeat center;
}
#section1 {
  padding: 85px 0 60px;
}
#section1 .rule {
  display: block;
  width: 1075px;
  margin: 0 auto;
}
#section1 .tips {
  font-size: 25px;
  color: #083b6e;
  text-align: center;
  line-height: 52px;
  margin-top: 65px;
}
#section1 .tips span {
  font-size: 36px;
  color: #d91712;
  font-weight: bold;
}
#section1 ul {
  margin-top: 75px;
  display: flex;
  justify-content: center;
}
#section1 ul li {
  position: relative;
  width: 345px;
  height: 350px;
  margin-right: 50px;
  border-radius: 11px;
  overflow: hidden;
}
#section1 ul li:last-child {
  margin-right: 0;
}
#section1 ul li img {
  display: block;
  width: 100%;
  height: 100%;
}
#section1 ul li .text {
  box-sizing: border-box;
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 100%;
  padding: 115px 35px 0;
  transition: all 0.2s;
}
#section1 ul li .text p {
  font-size: 20px;
  color: #fff;
  text-align: center;
}
#section1 ul li .text p:first-child {
  font-size: 23px;
  margin-bottom: 28px;
}
#section1 ul li:nth-child(1) .text {
  background: linear-gradient(to bottom, rgba(0, 110, 218, 0), #006eda 60%, #006eda);
}
#section1 ul li:nth-child(2) .text {
  background: linear-gradient(to bottom, rgba(0, 110, 218, 0), #1f357c 60%, #1f357c);
}
#section1 ul li:nth-child(3) .text {
  background: linear-gradient(to bottom, rgba(0, 110, 218, 0), #2090da 60%, #2090da);
}
#section1 ul li:hover .text {
  top: 10%;
}
.grey-bg {
  background-color: #edf4f9;
}
#section2 {
  padding: 65px 0 45px;
}
#section2 .content {
  margin-top: 40px;
}
#section2 .content .tips {
  font-size: 21px;
  color: #444;
  text-align: center;
}
#section2 .content .tab {
  margin-top: 45px;
  display: flex;
  justify-content: center;
}
#section2 .content .tab li {
  position: relative;
  width: 215px;
  height: 42px;
  border-radius: 8px;
  background-color: #083b6e;
  margin: 0 25px;
  user-select: none;
  font-size: 19px;
  color: #fff;
  text-align: center;
  line-height: 42px;
}
#section2 .content .video-wrap {
  position: relative;
  margin-top: 65px;
}
#section2 .content .video-wrap .video-box {
  width: 775px;
  height: 436px;
  margin: 0 auto;
}
#section2 .content .video-wrap .video-box video {
  width: 100%;
  height: 100%;
  border-radius: 10px;
}
#section2 .content .video-wrap .prev,
#section2 .content .video-wrap .next {
  position: absolute;
  top: 50%;
  width: 45px;
  height: 157px;
  background: url(../images/prev.png) no-repeat center;
  cursor: pointer;
}
#section2 .content .video-wrap .prev {
  left: 140px;
  transform: translateY(-50%);
}
#section2 .content .video-wrap .next {
  right: 140px;
  transform: translateY(-50%) rotate(180deg);
}
#section2 .content .btn {
  margin: 35px auto 55px;
}
#section2 .content .product {
  display: flex;
  justify-content: space-between;
}
#section2 .content .product li {
  width: 285px;
  height: 320px;
  background-color: #f8fbfd;
  border-bottom: 5px solid #0084cd;
}
#section2 .content .product li .img-box {
  width: 285px;
  height: 152px;
}
#section2 .content .product li h3 {
  padding: 0 16px;
  margin: 15px 0 12px;
  font-size: 17px;
  color: #0084cd;
}
#section2 .content .product li p {
  padding-left: 30px;
  margin: 0 16px;
  font-size: 14px;
  color: #3c3c3c;
  line-height: 25px;
  background: url(../images/select.png) no-repeat left center;
}
#section3 {
  padding: 45px 0 55px;
}
#section3 .content {
  margin-top: 60px;
}
#section3 .content .tab {
  display: flex;
  justify-content: center;
}
#section3 .content .tab li {
  position: relative;
  width: 210px;
  height: 40px;
  border-radius: 8px;
  background-color: #fff;
  margin: 0 10px;
  cursor: pointer;
  user-select: none;
  font-size: 19px;
  color: #383838;
  text-align: center;
  line-height: 40px;
  transition: all 0.2s;
}
#section3 .content .tab li::after {
  position: absolute;
  left: 50%;
  bottom: -20px;
  transform: translateX(-10px);
  width: 0;
  height: 0;
  border: 10px solid transparent;
  border-top: 10px solid #fff;
  opacity: 0;
  content: '';
  transition: all 0.2s;
}
#section3 .content .tab li.active {
  background-color: #0041c4;
  color: #fff;
}
#section3 .content .tab li.active::after {
  border-top: 10px solid #0041c4;
  opacity: 1;
}
#section3 .content .tab-con {
  margin-top: 55px;
}
#section3 .content .tab-con .photo-box {
  display: none;
  font-size: 0;
  text-align: center;
  position: relative;
}
#section3 .content .tab-con .photo-box.active {
  display: block;
}
#section3 .content .tab-con .photo-box img {
  width: 1190px;
}
#section3 .content .tab-con .photo-box a {
  position: absolute;
  left: 5px;
  top: 255px;
  display: block;
  width: 160px;
  height: 38px;
}
#section4 {
  padding: 70px 0 0;
}
#section4 .content {
  margin: 60px auto 0;
  width: 1145px;
}
#section4 .content p {
  font-size: 22px;
  color: #083b6e;
  line-height: 42px;
  text-indent: 2em;
}
#section4 .content .btn {
  margin: 40px auto 0;
}
#section5 {
  padding: 65px 0;
}
#section5 .content {
  width: 1200px;
  height: 414px;
  background: url(../images/gift_bg.png) no-repeat center;
  margin: 50px auto 0;
}
#section5 .content .gift {
  padding-top: 113px;
  display: flex;
  justify-content: center;
}
#section5 .content .gift li {
  width: 220px;
  margin: 0 24px;
}
#section5 .content .gift li .img-box {
  width: 220px;
  height: 177px;
}
#section5 .content .gift li p {
  font-size: 22px;
  color: #fff;
  text-align: center;
  line-height: 48px;
  background: #ee3d27;
}