* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  list-style: none;
  outline: none;
  font-family: PingFang SC;
}
body {
  /* background: #000; */
}
.bg1 {
  background-image: url("https://os.j.cctv.com/common/channel/qiye/gaotang/bg.png");
  background-size: 100%;
  background-repeat: no-repeat;
}
.nav_box {
  width: 100%;
  position: sticky;
  top: 0;
  z-index: 10000;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0) 100%
  );
}
.nav {
  width: 1100px;
  height: 132px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav_left {
  height: 100%;
}
.nav_left img {
  height: 100%;
}
.nav_right {
  display: flex;
}
.nav_right span {
  margin-right: 16px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
}

.nav_right span:hover {
  color: #ffca7f;
}
.nav_right span:last-child {
  margin-right: 0;
}
.nav_right .nav_active {
  color: #ffca7f;
}
/* banner */
.banner_cloud {
  position: absolute;
  width: 100%;
  height: 329px;
  background: url("https://os.j.cctv.com/common/channel/qiye/xiyang/cloud.png")
    no-repeat center;
  background-size: auto 100%;
  margin-top: -211px;
  z-index: 1;
}
.banner_swiper {
  width: 100%;
  height: 600px;
  position: relative;
  overflow: hidden;
  margin-top: -132px;
}

.banner_swiper .swiper-slide {
  position: relative;
}

.banner_swiper .swiper-slide .wz {
  position: absolute;
  right: 200px;
  height: 400px;
  top: 200px;
  width: 120px;
  overflow: hidden;
}

.banner_swiper .swiper-slide .wz img {
  width: 100%;
  position: absolute;
  right: 0;
  transition: all 1s;
}

.swiper-cover {
  position: absolute;
  left: 50%;
  bottom: -140px;
  transform: translateX(-50%);
  width: 280px;
  height: 280px;
  border-radius: 140px;
  border: 1px solid #fff;
  z-index: 10;
  padding-top: 33px;
}

.swiper-cover-scroll {
  display: flex;
  flex-direction: column;
  animation: smallBounce 0.8s ease-in-out infinite alternate;
  font-size: 16px;
  font-weight: 500;
  color: #fff;
  display: flex;
  align-items: center;
}

.swiper-cover .swiper-cover-scroll img {
  width: 14px;
  margin-bottom: 10px;
}

@keyframes smallBounce {
  0% {
    margin-top: 0;
  }

  100% {
    margin-top: 15px;
  }
}

.swiper-wrapper {
  width: 100%;
  height: 100%;
}

.banner_swiper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-text {
  position: absolute;
  top: 40px;
  right: 16%;
  width: 100px;
  height: 500px;
  z-index: 9;
  overflow: hidden;
  /* background-color: #000; */
}

.banner-text img {
  width: 642px;
  height: 100%;
  object-fit: contain;
  transform: translateX(-112px);
  transition: all 0.3s ease;
}
/* 公共样式 */
.option_box {
  width: 100%;
  position: relative;
  z-index: 100;
  margin-bottom: 30px;
}
.option {
  width: 1000px;
  margin: 0 auto;
}
.option-title {
  width: 100%;
  height: 100px;
  display: flex;
  justify-content: center;
}
.option-title img {
  height: 100%;
}
.option-text {
  width: 100%;
  padding: 30px 0;
}
.option-text p {
  font-weight: 400;
  font-size: 14px;
  text-align: justify;
  margin-bottom: 20px;
  text-indent: 28px;
  line-height: 24px;
}
.option-text p:last-child {
  margin-bottom: 0;
}
/* 丹青古韵 */
.option-video {
  width: 100%;
}
.option-win {
  width: 100%;
  height: 562px;
  background: #000;
  position: relative;
}
.option-win video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.option-win img {
  width: 48px;
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  margin: auto;
}
.option-video-list {
  width: 100%;
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
}
.option-video-item {
  width: 240px;
  height: 200px;
  background: #ffffff;
}
.option-video-item-img {
  width: 100%;
  height: 136px;
}
.option-video-item-img img {
  width: 100%;
}
.option-video-item-title {
  width: 100%;
  height: 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 8px;
}
.option-video-item-title h1 {
  font-weight: 500;
  font-size: 14px;
  color: #000;
}
.option-video-item-title h2 {
  font-weight: 400;
  font-size: 12px;
  color: #999999;
  margin-top: 6px;
}

/* 湖光城韵 */
.option_special {
  width: 100%;
  height: 460px;
  margin: 40px 0 60px 0;
  position: relative;
  overflow: hidden;
}
.option_special_item {
  width: 392px;
  height: 100%;
  position: absolute;
  top: 0;
  background: #e6e6e6
    url(//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1603705823513963/zwPic269_78.png)
    no-repeat center center;
  transition: all 0.1s;
}
.option_special_item > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.option_special_num {
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.4) 0%,
    rgba(0, 0, 0, 0.8) 100%
  );
  position: absolute;
  top: 0;
  left: 0;
  width: 152px;
  height: 100%;
}
.option_special_num_title {
  width: 100%;
  height: 100%;
  writing-mode: vertical-rl;
  font-size: 18px;
  color: #ffffff;
  font-weight: bold;
  position: absolute;
  top: 0;
  left: 0;
  text-align: center;
  line-height: 152px;
  letter-spacing: 5px;
}
.option_special_con {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url(//p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1603705823513963/wrap_pic_con.png)
    repeat;
  background-size: cover;
  padding: 200px 48px 0;
}
.option_special_con_title {
  width: 100%;
  height: 34px;
  display: flex;
  align-items: center;
}
.option_special_con_title h1 {
  font-weight: 900;
  font-size: 24px;
  color: #ffffff;
  margin-right: 10px;
}
.option_special_con_title img {
  height: 22px;
}
.option_special_con_text {
  font-weight: 400;
  font-size: 14px;
  color: #ffffff;
  margin-top: 22px;
  line-height: 24px;
}
.option_swiper {
  width: 100%;
  overflow: hidden;
}
.hgcy .swiper-slide {
  width: 340px;
}
.hgcy-item {
  width: 340px;
  height: 400px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 53%, #000000 100%);
  overflow: hidden;
  position: relative;
}
.hgcy-item > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hgcy-con {
  width: 100%;
  height: 100%;
  padding: 234px 24px 24px;
  position: absolute;
  left: 0;
  top: 0;
}
.hgcy-title {
  width: 100%;
  height: 34px;
  display: flex;
  align-items: center;
}
.hgcy-title h1 {
  font-weight: 600;
  font-size: 24px;
  color: #ffffff;
  margin-right: 10px;
}
.hgcy-title h2 {
  width: 68px;
  height: 24px;
  border-radius: 4px;
  font-weight: 500;
  font-size: 13px;
  color: #ffffff;
  background: #d3af4599;
  text-align: center;
  line-height: 24px;
}
.hgcy-text {
  font-weight: 400;
  font-size: 14px;
  color: #ffffff;
  line-height: 24px;
  margin-top: 16px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  text-overflow: ellipsis;
  white-space: normal;
}
/* 文脉星辉 */
/* 匠心传承 */
/* 共绘蓝图 */

.statement {
  margin: 30px 0;
}
.statement p {
  font-size: 12px;
  font-weight: 400;
  line-height: 20px;
  text-align: center;
}