@keyframes fadeInLeft {
  0% {
    opacity: 0;
    transform: translateX(-50px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  0% {
    opacity: 0;
    transform: translateX(50px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInBottom {
  0% {
    opacity: 0;
    transform: translateY(50px);
  }

  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

.i_bg {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
}

.ib_swiper a {
  cursor: default;
}

.ib_swiper dl dt {
  font-size: 0;
}

.ib_swiper dl dd {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  padding-left: 1.88rem;
  color: #fff;
  z-index: 1;
}

.ib_swiper dl dd h2 {
  font-size: 0.71rem;
  font-family: siyuanRegular;
  opacity: 0;
}

.ib_swiper dl dd h3 {
  font-size: 0.27rem;
  font-family: siyuanRegular;
  padding: 0.24rem 0;
  opacity: 0;
}

.ib_swiper dl dd h3 span {
  padding: 0 0.1rem;
  color: #04ad45;
}

.ib_swiper dl dd h4 {
  display: flex;
  align-items: flex-end;
  opacity: 0;
}

.ib_swiper dl dd h4 u {
  font-size: 0.25rem;
  font-family: siyuanRegular;
}

.ib_swiper dl dd h4 span {
  font-size: 0.31rem;
  font-family: Arial, Helvetica, sans-serif;
}

.ib_swiper dl dd h6 {
  margin-top: 0.3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 1.58rem;
  height: 0.45rem;
  border-radius: 0.24rem;
  color: #e5e5e5;
  border: 1px solid rgba(255, 255, 255, 0.35);
  cursor: pointer;
  opacity: 0;
  transition: 0.4s;
}

.ib_swiper dl dd h6 span {
  font-size: 0.17rem;
  font-family: siyuanRegular;
  padding-right: 0.11rem;
}

.ib_swiper dl dd h6 u {
  width: 0.18rem;
  height: 0.07rem;
  background-image: url(../img/entry_1.png);
}

.ib_swiper dl dd h6:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transition: 0.4s;
}

.ib_swiper .swiper-button-prev {
  left: 0.24rem;
}

.ib_swiper .swiper-button-next {
  right: 0.24rem;
}

.ib_swiper .swiper-button-prev,
.ib_swiper .swiper-button-next {
  width: 0.74rem;
  height: 0.74rem;
  background-color: #333333;
  border-radius: 50%;
  background-size: 0.14rem;
  z-index: 11;
  opacity: 0.35;
}

.ib_swiper .swiper-button-prev:hover,
.ib_swiper .swiper-button-next:hover,
.ib_swiper .swiper-button-prev.swiper-button-disabled:hover {
  opacity: 1 !important;
}

.ib_swiper .swiper-button-prev {
  background-image: url(../img/arr_1.png);
}

.ib_swiper .swiper-button-next {
  background-image: url(../img/arr_2.png);
}

.ib_swiper .swiper-button-prev::after,
.ib_swiper .swiper-button-next::after {
  display: none;
}

.ib_swiper dl h5 {
  position: absolute;
  font-size: 0;
  opacity: 0;
}

.ib_swiper dl h5.on {
  animation: fadeInRight 1s linear 0.5s;
  animation-fill-mode: forwards;
}

.ib_swiper h2.on {
  animation: fadeInLeft 1s linear 0.5s;
  animation-fill-mode: forwards;
}

.ib_swiper h3.on {
  animation: fadeInLeft 1s linear 1s;
  animation-fill-mode: forwards;
}

.ib_swiper h4.on {
  animation: fadeInLeft 1s linear 1.5s;
  animation-fill-mode: forwards;
}

.ib_swiper h6.on {
  animation: fadeInLeft 1s linear 2s;
  animation-fill-mode: forwards;
}

.ib_swiper h5.on {
  animation: fadeInBottom 1s linear;
  animation-fill-mode: forwards;
}

/* .ib_swiper.toggle dd h2,
.ib_swiper.toggle dd h4,
.ib_swiper.toggle dd h5,
.ib_swiper.toggle dd h6 {
  opacity: 0;
} */

@media screen and (max-width: 768px) {
  .i_bg {
    position: relative;
    width: 100%;
    overflow-x: hidden;
  }

  .ib_swiper dl dd {
    right: 0;
    top: 1.08rem;
    transform: translateY(0);
    padding-left: 0;
    text-align: center;
  }

  .ib_swiper dl dd h2 {
    font-size: 0.18rem;
  }

  .ib_swiper dl dd h3 {
    font-size: 0.16rem;
    padding: 0.15rem 0;
  }

  .ib_swiper dl dd h3 span {
    padding: 0 0.05rem;
  }

  .ib_swiper dl dd h4 {
    justify-content: center;
    align-items: center;
  }

  .ib_swiper dl dd h4 u {
    font-size: 0.16rem;
  }

  .ib_swiper dl dd h4 span {
    font-size: 0.16rem;
  }

  .ib_swiper dl dd h6 {
    margin: 0.2291rem auto 0;
    width: 1.09rem;
    height: 0.3125rem;
    border-radius: 0.16rem;
  }

  .ib_swiper dl dd h6 span {
    font-size: 0.111rem;
    padding-right: 0.083rem;
  }

  .ib_swiper dl dd h6 u {
    width: 0.125rem;
    height: 0.0486rem;
  }

  .ib_swiper .swiper-button-prev,
  .ib_swiper .swiper-button-next {
    display: none;
  }
}

.i_box {
  position: relative;
  background-color: #000;
  z-index: 1;
  /* overflow-x: hidden; */
}

.ib_intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-top: 0.92rem;
}

.ib_intro p {
  font-size: 0.25rem;
  line-height: 0.58rem;
  color: #fff;
  text-align: center;
}

.ib_intro h4 {
  padding-top: 0.61rem;
  font-size: 0.37rem;
  color: #fff;
}

.i_title {
  font-size: 0.62rem;
  color: #fff;
  text-align: center;
  font-family: siyuanRegular;
}

.ib_recommend {
  padding-top: 1.22rem;
}

.ibr_list {
  display: flex;
  align-items: center;
  margin: 1.11rem 0;
}

.ibr_list li {
  width: 25%;
}

.ibr_list li dl {
  opacity: 0.8;
  cursor: pointer;
  transition: 0.4s;
}

.ibr_list li dl dt {
  font-size: 0;
  width: 2.78rem;
  margin: 0 auto;
}

.ibr_list li dl dd {
  color: #fff;
  text-align: center;
  padding-top: 0.48rem;
}

.ibr_list li dl dd h3 {
  font-size: 0.21rem;
  /* font-family: siyuanLight; */
}

.ibr_list li dl dd h6 {
  font-size: 0.15rem;
  color: #666;
  padding: 0.2rem 0;
  /* font-family: siyuanLight; */
}

.ibr_list li dl dd h4 {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  font-size: 0.18rem;
}

.ibr_list li dl dd h4 u {
  /* font-family: siyuanRegular; */
}

.ibr_list li dl dd h4 span {
  font-family: Arial, Helvetica, sans-serif;
}

.ibr_list li:hover dl {
  /* filter: brightness(0.1); */
  opacity: 1;
  transition: 0.4s;
}

@keyframes fadeUp {
  from {
    transform: translateY(80px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeDown {
  from {
    transform: translateY(-80px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.ibr_list.flash li:nth-child(2n + 1) {
  animation: fadeUp 3s;
}

.ibr_list.flash li:nth-child(2n) {
  animation: fadeDown 3s;
}

.ibr_list.flash li:nth-child(2) {
  animation-delay: 0.2s;
}

.ibr_list.flash li:nth-child(3) {
  animation-delay: 0.4s;
}

.ibr_list.flash li:nth-child(4) {
  animation-delay: 0.6s;
}

.ib_image {
  position: relative;
  width: 16rem;
  font-size: 0;
  margin: 0 auto;
}

.ib_image.flash .ibi_bg {
  animation: fadeInBottom 1s linear;
  animation-fill-mode: backwards;
}

.ib_image.flash .ibi_watch {
  animation: fadeInLeft 1s linear 0.5s;
  animation-fill-mode: backwards;
}

.ib_image.flash .ibi_price {
  animation: fadeInRight 1s linear 1s;
  animation-fill-mode: backwards;
}

.ibi_watch {
  position: absolute;
  left: 50%;
  margin-left: -5.08rem;
  bottom: 0;
  font-size: 0;
  width: 5.58rem;
}

.ibi_price {
  position: absolute;
  left: 50%;
  top: 50%;
  /* transform: translate(-50%, -50%); */
  margin-left: 3.04rem;
  margin-top: -1.04rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  color: #fff;
}

.ibi_price h3 {
  font-size: 0.5rem;
  /* font-family: siyuanNormal; */
}

.ibi_price h4 {
  display: flex;
  align-items: flex-end;
  padding: 0.24rem 0;
}

.ibi_price h4 u {
  font-size: 0.25rem;
  /* font-family: siyuanNormal; */
}

.ibi_price h4 span {
  font-size: 0.32rem;
  font-family: Arial, Helvetica, sans-serif;
}

.ibi_price h6 {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 1.58rem;
  height: 0.45rem;
  border-radius: 0.24rem;
  color: #e5e5e5;
  border: 1px solid rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: 0.4s;
}

.ibi_price h6 span {
  font-size: 0.17rem;
  font-family: siyuanRegular;
  padding-right: 0.11rem;
}

.ibi_price h6 u {
  width: 0.18rem;
  height: 0.07rem;
  background-image: url(../img/entry_1.png);
}

.ibi_price h6:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transition: 0.4s;
}

.ibm_list {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 0.6rem;
}

.ibm_list li {
  font-size: 0.27rem;
  color: #999;
  /* font-family: siyuanRegular; */
  margin: 0 0.22rem;
  padding: 0.3rem 0.18rem;
  cursor: pointer;
}

.ibm_list li.on {
  color: #fff;
  border-bottom: 0.03rem solid #fff;
}

.ibm_swiper {
  margin-top: 1.2rem;
}

.ibm_Swiper {
  position: relative;
  padding-bottom: 1.25rem;
}

/* .ibm_Swiper .swiper-slide.on {
  filter: brightness(0.1);
  transition: 0.4s;
} */

.ibm_Swiper .swiper-pagination-bullet::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.ibm_Swiper ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

.ibm_Swiper ul li {
  width: 25%;
}

.ibm_Swiper dl {
  opacity: 0.8;
  transition: 0.4s;
}

.ibm_Swiper dl:hover {
  opacity: 1;
  transition: 0.4s;
}

.ibm_Swiper dt {
  font-size: 0;
  text-align: center;
}

.ibm_Swiper dt img {
  width: 2.78rem;
  font-size: 0;
}

.ibm_Swiper dd {
  color: #fff;
  text-align: center;
  padding-top: 0.48rem;
}

.ibm_Swiper dd h3 {
  font-size: 0.21rem;
  font-family: siyuanLight;
}

.ibm_Swiper dd h6 {
  font-size: 0.15rem;
  color: #666;
  padding: 0.2rem 0;
  font-family: siyuanLight;
}

.ibm_Swiper dd h4 {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  font-size: 0.18rem;
}

.ibm_Swiper dd h4 u {
  font-family: siyuanRegular;
}

.ibm_Swiper dd h4 span {
  font-family: Arial, Helvetica, sans-serif;
}

.ibm_Swiper .swiper-pagination-bullet {
  background-color: #fff;
}

.ib_senior {
  /* margin-top: 1.4rem; */
}

.ib_senior dl {
  position: relative;
}

.ib_senior dd {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 12.4rem;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ib_senior.flash dt {
  animation: fadeInBottom 1s linear;
  animation-fill-mode: backwards;
}

.ib_senior.flash .ibs_info {
  animation: fadeInLeft 1s linear 1s;
  animation-fill-mode: backwards;
}

.ib_senior.flash .ibs_pic {
  animation: fadeInRight 1s linear 0.5s;
  animation-fill-mode: backwards;
}

.ibs_pic {
  position: relative;
  bottom: -0.04rem;
  font-size: 0;
  width: 4.32rem;
}

.ibs_info {
  color: #fff;
  font-family: siyuanRegular;
}

.ibs_info h3 {
  font-size: 0.5rem;
}

.ibs_info h4 {
  font-size: 0.25rem;
  padding: 0.3rem 0;
}

.ibs_info h5 {
  display: flex;
  align-items: flex-end;
}

.ibs_info h5 u {
  font-size: 0.25rem;
}

.ibs_info h5 span {
  font-size: 0.32rem;
  font-family: Arial, Helvetica, sans-serif;
}

.ibs_info h6 {
  margin-top: 0.3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 1.58rem;
  height: 0.45rem;
  border-radius: 0.24rem;
  color: #e5e5e5;
  border: 1px solid rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: 0.4s;
}

.ibs_info h6 span {
  font-size: 0.17rem;
  font-family: siyuanRegular;
  padding-right: 0.11rem;
}

.ibs_info h6 u {
  width: 0.18rem;
  height: 0.07rem;
  background-image: url(../img/entry_1.png);
}

.ibs_info h6:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transition: 0.4s;
}

@keyframes roate {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.ib_multiple.on .ibm_Swiper dl {
  animation: roate 2s;
}

@media screen and (max-width: 1000px) {
  .ibr_list {
    flex-wrap: wrap;
    margin: 0;
  }

  .ibr_list li {
    width: 50%;
  }

  .ibr_list li dl {
    margin: 0.55rem;
  }

  .ibm_Swiper ul li {
    width: 50%;
  }
}

@media screen and (max-width: 768px) {
  .ib_intro {
    padding: 0.486rem 0.541rem 0;
  }

  .ib_intro p {
    font-size: 0.1458rem;
    line-height: 0.277rem;
  }

  .ib_intro h4 {
    padding-top: 0.0972rem;
    font-size: 0.1875rem;
  }

  .i_title {
    font-size: 0.2291rem;
  }

  .ib_recommend {
    padding-top: 0.3819rem;
  }

  .ibr_list li dl {
    margin: 0.416rem 0 0;
    opacity: 1;
  }

  .ibr_list li.on dl {
    opacity: 1;
  }

  .ibr_list li dl dt {
    width: 1.58rem;
  }

  .ibr_list li dl dd {
    padding-top: 0.2083rem;
  }

  .ibr_list li dl dd h3 {
    font-size: 0.1458rem;
  }

  .ibr_list li dl dd h6 {
    font-size: 0.1rem;
    padding: 0.064rem 0;
  }

  .ibr_list li dl dd h4 {
    font-size: 0.1284rem;
  }

  .ib_image {
    width: 100%;
    margin: 0.52rem 0;
  }

  .ibi_watch {
    margin-left: -1.09rem;
    width: 2.39rem;
  }

  .ibi_price {
    position: static;
    left: 0;
    top: 0;
    transform: translate(0, 0);
    margin: 0.1388rem 0.243rem;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .ibi_price h3 {
    font-size: 0.1458rem;
  }

  .ibi_price h4 {
    padding: 0.083rem 0;
  }

  .ibi_price h4 u {
    font-size: 0.1284rem;
  }

  .ibi_price h4 span {
    font-size: 0.1284rem;
  }

  .ibi_price h6 {
    width: 1.09rem;
    height: 0.3125rem;
    border-radius: 0.16rem;
  }

  .ibi_price h6 span {
    font-size: 0.111rem;
    padding-right: 0.083rem;
  }

  .ibi_price h6 u {
    width: 0.125rem;
    height: 0.0486rem;
  }

  .ibm_list {
    margin-top: 0.1666rem;
  }

  .ibm_list li {
    font-size: 0.1284rem;
    margin: 0;
    padding: 0.1215rem;
  }

  .ibm_swiper {
    margin-top: 0.2472rem;
  }

  .ibm_Swiper {
    padding-bottom: 0.56rem;
  }

  .ibm_Swiper dl {
    margin: 0.225rem 0;
    opacity: 1;
  }

  .ibm_Swiper dt img {
    width: 1.68rem;
  }

  .ibm_Swiper dd {
    padding-top: 0.18rem;
  }

  .ibm_Swiper dd h3 {
    font-size: 0.1458rem;
  }

  .ibm_Swiper dd h6 {
    font-size: 0.1rem;
    padding: 0.064rem 0;
  }

  .ibm_Swiper dd h4 {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    font-size: 0.1284rem;
  }

  .ibm_Swiper .swiper-pagination-bullet {
    background-color: #fff;
  }

  .ib_senior {
    margin-top: 0;
  }

  .ib_senior dd {
    width: 100%;
    flex-direction: column;
    justify-content: space-between;
  }

  .ibs_pic {
    width: 2.62rem;
    margin-top: 0.3055rem;
    bottom: -0.02rem;
  }

  .ibs_info {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .ibs_info h3 {
    font-size: 0.1458rem;
    text-align: center;
  }

  .ibs_info h4 {
    font-size: 0.1145rem;
    padding: 0.118rem 0 0.228rem;
    text-align: center;
  }

  .ibs_info h5 {
    justify-content: center;
  }

  .ibs_info h5 u {
    font-size: 0.1284rem;
  }

  .ibs_info h5 span {
    font-size: 0.1284rem;
  }

  .ibs_info h6 {
    width: 1.09rem;
    height: 0.3125rem;
    border-radius: 0.16rem;
    margin-top: 0.2361rem;
  }

  .ibs_info h6 span {
    font-size: 0.111rem;
    padding-right: 0.083rem;
  }

  .ibs_info h6 u {
    width: 0.125rem;
    height: 0.0486rem;
  }

  .ibs_info h6:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transition: 0.4s;
  }
}

.ib_multiple {
  position: relative;
  z-index: 1;
}

.ibs_info:hover h3,
.ibs_info:hover h4,
.ibs_info:hover h5 {
  color: #fff;
  transition: 0.4s;
}