.wrapper {
  width: 10rem;
  height: 200vh;
  background: #89c8ea url(../img/bg_sky.jpg) no-repeat center / cover;
  margin: 0 auto;
  position: relative;
}
.page_cover {
  width: 10rem;
  height: 100vh;
  background: url(../img/bg_build.png) no-repeat bottom center / 100% auto, url(../img/bg_sky.jpg) no-repeat top center / 100% auto;
  position: relative;
}
.page_cover .p_cover_flex {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.page_cover .p_cover_flex .area_main {
  flex: 1;
  width: 100%;
  padding-top: 0.53333333rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}
.page_cover .p_cover_flex .area_main .box_bjnews {
  width: 1.73333333rem;
  height: 0.53333333rem;
}
.page_cover .p_cover_flex .area_main .box_bjnews .logo_bjnews {
  width: 1.73333333rem;
  height: 0.53333333rem;
}
.page_cover .p_cover_flex .area_main .box_theme {
  width: 8.13333333rem;
  height: 2.8rem;
}
.page_cover .p_cover_flex .area_main .box_theme .logo_theme {
  width: 8.13333333rem;
  height: 2.8rem;
  animation-duration: 1.5s;
}
.page_cover .p_cover_flex .area_main .box_slide {
  width: 0.93333333rem;
  height: 1.46666667rem;
}
.page_cover .p_cover_flex .area_main .box_slide .icon_slide {
  width: 0.93333333rem;
  height: 1.46666667rem;
}
.page_cover .p_cover_flex .area_null {
  width: 100%;
  height: 8.26666667rem;
}
.page_topic {
  overflow: hidden;
}
.page_topic .part_intro {
  width: 10rem;
  height: 7.33333333rem;
  background: url(../img/bg_in.jpg) no-repeat center / 100% 100%;
  padding-top: 1.33333333rem;
}
.page_topic .part_intro .intro {
  width: 10rem;
  height: 6rem;
}
.page_topic .part_topic {
  width: 10rem;
  height: 100vh;
  background: url(../img/bg_to.jpg) no-repeat center / cover;
  position: relative;
}
.page_topic .part_topic .to_top {
  z-index: 9;
  width: 10rem;
  height: 2.8rem;
  position: absolute;
  top: 0;
  left: 50%;
  margin-left: -5rem;
}
.page_topic .part_topic .bg_topic {
  width: 10rem;
  height: 14.66666667rem;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-left: -5rem;
  margin-top: -7.33333333rem;
}
.page_topic .part_topic .swiper_topic {
  width: 100%;
  position: absolute;
  top: 50%;
  margin-top: -4.8rem;
}
.page_topic .part_topic .swiper_topic .topic {
  width: 8rem;
  position: relative;
}
.page_topic .part_topic .swiper_topic .topic .tip_report {
  width: 2.26666667rem;
  height: 0.26666667rem;
  position: absolute;
  right: 0.4rem;
  bottom: 0.2rem;
}
.page_topic .part_topic .swiper_topic .topic .tip_report .read_arrow {
  width: 0.32rem;
  height: 0.32rem;
  animation-duration: 2s;
}
.page_topic .part_topic .swiper_topic .topic .tip_report .read_news {
  width: 1.6rem;
  height: 0.32rem;
}
.page_topic .part_topic .swiper_topic .topic_1 {
  height: 8.08rem;
  background: url(../img/topic_1.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_2 {
  height: 7.64rem;
  background: url(../img/topic_2.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_3 {
  height: 8.17333333rem;
  background: url(../img/topic_3.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_4 {
  height: 7.58666667rem;
  background: url(../img/topic_4.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_5 {
  height: 8.01333333rem;
  background: url(../img/topic_5.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_6 {
  height: 7.6rem;
  background: url(../img/topic_6.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_7 {
  height: 7.50666667rem;
  background: url(../img/topic_7.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_8 {
  height: 7.82666667rem;
  background: url(../img/topic_8.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_9 {
  height: 7.82666667rem;
  background: url(../img/topic_9.png) no-repeat center / contain;
}
.page_topic .part_topic .swiper_topic .topic_10 {
  height: 7.50666667rem;
  background: url(../img/topic_10.png) no-repeat center / contain;
}
.page_topic .part_topic .pagi_topic {
  width: 10rem;
  height: 0.4rem;
  position: absolute;
  bottom: 3.2rem;
  left: 50%;
  margin-left: -5rem;
  display: flex;
  justify-content: space-around;
}
.page_topic .part_topic .pagi_topic .swiper-pagination-bullet {
  width: 0.4rem;
  height: 0.4rem;
  border: 0.04rem solid #5379b9;
  background-color: #fff;
  margin: 0 0.13333333rem;
  opacity: 1;
}
.page_topic .part_topic .pagi_topic .swiper-pagination-bullet-active {
  background-color: #5379B9;
  opacity: 1;
}
.page_topic .part_topic .pagi_line {
  width: 10rem;
  height: 1px;
  border-top: 0.04rem solid #5379b9;
  position: absolute;
  bottom: 3.4rem;
  left: 50%;
  margin-left: -5rem;
}
.page_topic .part_topic .pagi_txts {
  width: 10rem;
  height: 2.66666667rem;
  position: absolute;
  bottom: 0.4rem;
  left: 50%;
  margin-left: -5rem;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.page_topic .part_topic .pagi_txts .pagi_txt {
  width: 0.4rem;
  height: 2.13333333rem;
}
/* 背景音乐 */
.bgm {
  width: 0.8rem;
  height: 0.8rem;
  background: url(../img/musicOff.png) no-repeat;
  background-size: 100%;
  z-index: 999;
  position: fixed;
  right: 0.13333333rem;
  top: 0.26666667rem;
}
.music_on {
  background-image: url(../img/musicOn.png);
  animation: reverseRotating 1.2s linear infinite;
  -webkit-animation: reverseRotating 1.2s linear infinite;
}
@keyframes reverseRotating {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}
@-webkit-keyframes reverseRotating {
  0% {
    -webkit-transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(-360deg);
  }
}