body.pro {
  background: #f1f3f7;
}

/* 核心容器：通过padding-top控制视频宽高比（16:9是YouTube默认，适配绝大多数视频） */
.youtube-container {
  position: relative;       /* 为内层绝对定位做参考 */
  width: 100%;              /* 占满父容器宽度，实现响应式 */
  max-width: 1200px;        /* 可选：限制视频最大宽度，避免大屏拉伸过宽 */
  margin: 0 auto;           /* 可选：让视频容器水平居中 */
  padding-top: 56.25%;      /* 16:9宽高比核心：56.25% = 9/16*100%，无黑边关键 */
}

/* 内层容器：绝对定位填充外层，让iframe自适应 */
.youtube-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* 视频iframe：铺满内层容器，取消原生固定宽高 */
.youtube-iframe iframe {
  width: 100%;
  height: 100%;
  border: none;             /* 清除默认边框 */
}

.main {
  padding-top: 80px;
  padding-bottom: 80px;
}

.newsnr {
  margin: 0 auto;
  width: 1000px;
}
.newsnr h1 {
  font-size: 36px;
  text-align: center;
  color: var(--title-text-color);
  line-height: 1;
}
.newsnr table {
  width: 100%
}

.newsnr .artInfo {
  text-align: center;
  margin: 18px 0 0;
  position: relative;
}
.newsnr .artInfo span {
  display: inline-block;
  font-size: 16px;
  /* color: #666; */
}

.myart {
  margin: 35px 0 0;
  line-height: 2;
  font-size: 18px;
  /* color: #666; */
}
.myart p {
  margin-bottom: 15px;
  font-size: clamp(14px, 0.85vw, 16px);
}
.summary {
  background: #fff;
  padding: 30px;
  margin-top: 35px;
}
.summary p {
  background: url(../images/dot2.png) no-repeat left 4px;
  padding: 0 0 0 40px;
  font-size: 18px;
  color: #333;
  line-height: 24px;
}

.new-share {
  margin: 40px 0 0;
  position: relative;
  text-align: center;
}
.new-share::before {
  content: "";
  display: block;
  background: #999;
  width: 100%;
  height: 1px;
  overflow: hidden;
  position: absolute;
  top: 50%;
  z-index: 1;
}
.new-share ul {
  display: inline-block;
  background: #fff;
  padding: 0 10px;
  position: relative;
  z-index: 2;
}
.new-share ul li {
  display: inline-block;
  margin: 0 10px;
}
.new-share ul li a {
  color: #666;
}
.new-share ul li i {
  font-size: 30px;
  color: inherit;
}
.new-share ul li:hover a {
  color: var(--color-primary);
}
body.pro .new-share ul {
  background: #f1f3f7;
}

.pnbar {
  margin-top: 40px;
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  -webkit-align-items: center;
  align-items: center;
}
.pnbar > div {
  -webkit-flex: 1;
  flex: 1;
  max-width: 70%;
}
.pnbar p {
  font-size: 18px;
  /* color: #666; */
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
}
.pnbar p + p {
  margin-top: 9px;
}
.pnbar p:hover a {
  color: var(--color-primary);
}

.pnbar .more {
  height: 50px;
  line-height: 50px;
  display: inline-block;
  background: var(--color-primary);
  border-radius: var(--button-radius);
  padding: 0 28px;
  font-size: 18px;
  color: #fff;
}
.pnbar .more:hover {
  background: none;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.rela-pro {
  padding: 75px 0;
}
.rela-pro h3 {
  font-size: 50px;
  color: var(--title-text-color);
  line-height: 1;
  text-align: center;
}
.rela-pro h3::after {
  content: "";
  background: var(--title-text-color);
  width: 40px;
  height: 4px;
  margin: 15px auto 0;
  display: block;
}

.rela-pro .list {
  margin: 50px 0 0;
  position: relative;
}
.rela-pro .swiper-slide .pic {
  display: block;
  width: 100%;
  position: relative;
  overflow: hidden;
}
.rela-pro .swiper-slide .pic > img {
  width: 100%;
  display: block;
  transition: transform 0.5s;
  -webkit-transition: transform 0.5s;
}
.rela-pro .swiper-slide .txt {
  margin-top: 20px;
  text-align: center;
}
.rela-pro .swiper-slide .txt h6 {
  font-size: 17px;
  color: #222;
}
.rela-pro .swiper-slide .txt h6 a {
  display: block;
  line-height: 22px;
  height: 66px;
  overflow: hidden;
}
.rela-pro .swiper-slide .txt h6 a:hover {
  color: var(--color-primary);
}

.rela-pro .swiper-slide:hover .pic > img {
  transform: scale(1.03);
  -webkit-transform: scale(1.03);
}
.rela-pro .swiper-slide:hover .txt h6 a {
  color: var(--color-primary);
}

.rela-pro .swiper-pagination {
  position: static;
  width: 100%;
  margin-top: 30px;
}
.rela-pro .swiper-pagination-bullet {
  height: 12px;
  width: 12px;
  margin: 0 4px;
  background: #b5b5b5;
  border-radius: 50%;
  opacity: 1;
}
.rela-pro .swiper-pagination-bullet-active {
  background: var(--color-primary);
}

@media screen and (max-width: 1441px) {
  .newsnr h1 {
    font-size: 48px;
  }

  .rela-pro h3 {
    font-size: 48px;
  }
}

@media screen and (max-width: 1367px) {
  .newsnr h1 {
    font-size: 44px;
  }

  .myart {
    margin: 30px 0 0;
    line-height: 1.8;
    font-size: 17px;
  }

  .rela-pro h3 {
    font-size: 44px;
  }
}

@media screen and (max-width: 1281px) {
  .newsnr h1 {
    font-size: 40px;
  }

  .rela-pro h3 {
    font-size: 40px;
  }
}

@media screen and (max-width: 1171px) {
  .newsnr h1 {
    font-size: 36px;
  }
  .newsnr {
    width: 100%;
  }

  .rela-pro h3 {
    font-size: 36px;
  }
}

@media screen and (max-width: 992px) {
  .newsnr h1 {
    font-size: 32px;
  }

  .rela-pro h3 {
    font-size: 32px;
  }
}

@media screen and (max-width: 991px) {
  .main {
    padding-top: 25px;
    padding-bottom: 30px;
  }

  .newsnr h1 {
    font-size: 28px;
  }

  .newsnr .artInfo span {
    margin: 0 5px;
    font-size: 13px;
  }

  .myart {
    margin: 25px 0 0;
    line-height: 24px;
    font-size: 16px;
  }
  .myart p {
    margin-bottom: 10px;
  }
  .myart img {
    width: 100%;
    height: auto;
  }

  .new-share {
    margin: 25px 0 0;
  }
  .new-share ul li i {
    font-size: 26px;
  }

  .pnbar {
    margin-top: 25px;
    display: block;
    text-align: center;
  }
  .pnbar p {
    font-size: 16px;
    text-align: left;
  }
  .pnbar .more {
    height: 45px;
    line-height: 45px;
    padding: 0 40px;
    font-size: 16px;
    margin-top: 20px;
  }

  .rela-pro h3 {
    font-size: 28px;
  }
  .rela-pro {
    padding: 30px 0;
  }
  .rela-pro .list {
    margin: 25px 0 0;
  }
  .rela-pro .swiper-slide .txt {
    margin-top: 15px;
  }
  .rela-pro .swiper-slide .txt h6 {
    font-size: 16px;
  }
  .rela-pro .swiper-slide .txt h6 a {
    height: auto;
  }
}

@media screen and (max-width: 600px) {
  .newsnr h1 {
    font-size: 26px;
  }
  .rela-pro h3 {
    font-size: 26px;
  }
}

@media screen and (max-width: 480px) {
  .newsnr h1 {
    font-size: 24px;
  }
  .rela-pro h3 {
    font-size: 24px;
  }
}