.banner {
  width: 100%;
  height: auto;
}
.banner img {
  display: block;
  width: 100%;
}
.banner .swiper-slide {
  height: 100%;
}
.banner .banner_img {
  flex-flow: column;
  justify-content: center;
  align-items: flex-start;
  height: 100%;
  display: flex;
}
.banner .banner_img a {
  display: block;
  width: 100%;
  height: 100%;
}
.banner .banner_img img {
  display: block;
  object-fit: cover;
  width: 100%;
  height: 100%;
}
.tips {
  font-family: Poppins_Bold, Arial, sans-serif;
  height: 50px;
  line-height: 50px;
  background-color: var(--black);
  overflow: hidden;
}
.tips_item {
  font-size: 16px;
  color: #fff;
  padding: 0 30px;
  float: left;
  cursor: pointer;
  display: block;
  width: 280px;
}
.tips_item a {
  display: block;
  color: #fff;
}
.tips_item a:hover {
  color: var(--blue);
}

.session_box {
  display: flex;
  margin: 20px auto;
  justify-content: center;
}
.session_btn {
  cursor: pointer;
  width: 340px;
  height: 146px;
  background-color: var(--gray);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 20px;
  /* 大写 */
  text-transform: uppercase;
}
.session_btn:last-child {
  margin-right: 0;
}
.session_btn p {
  font-family: Poppins_Bold, Arial, sans-serif;
  display: block;
  color: #fff;
  text-align: center;
  line-height: 22px;
  font-size: 18px;
}
.session_btn:hover {
  background-color: var(--blue);
}

.info_box {
  background-color: #000;
}
.info_box_line {
  display: flex;
  align-items: stretch;
}
.info_box_line .box1 {
  flex: 0 0 50%;
}
.info_box_line .box1 a{
  display: block;
  width: 100%;
}
.info_box_line img {
  width: 100%;
  display: block;
}
.info_box_line .box2 {
  display: flex;
  padding: 20px;
  justify-content: center;
  width: 100%;

}

.info_box_line .text1 {
  font-family: Poppins_Bold, Arial, sans-serif;
  display: flex;
  color: #fff;
  justify-content: center;
  align-items: center;
  width: 40%;
  /* 大写 */
  text-transform: uppercase;
}
.info_box_line .text1 p {
  display: block;
  padding-left: 20px;
  font-size: 20px;
}

.info_box_line .text2 {
  width: 60%;
  display: flex;
  color: #fff;
  justify-content: center;
  align-items: center;
}
.info_box_line .text2_con {
}
.info_box_line .btn {
  text-align: center;
  line-height: 30px;
  border-radius: 30px;
  border: 1px solid #fff;
  color: #fff;
  cursor: pointer;
  width: 70px;
  margin-top: 15px;
  display: block;
}
.info_box_line .btn:hover {
  border-color: var(--blue);
  background-color: var(--blue);
}
.info_box .line2 {
  /* 左右互换 */
  flex-direction: row-reverse;
}

.index_title {
  width: 80%;
  margin: 0 auto;
  height: 60px;
  line-height: 60px;

  font-size: 20px;
  font-family: Poppins_Bold, Arial, sans-serif;
  color: var(--blue);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.delegate_box {
  background-color: var(--blue);
  padding-bottom: 60px;
}
.delegate_box .index_title {
  color: #fff;
}
.delegate_box_line {
  padding: 0 150px;
  display: flex;
  justify-content: space-between;
}
.delegate_box_line .item {
  background-color: #fff;
  margin-right: 60px;
  padding: 25px;
}
.delegate_box_line .item:last-child {
  margin-right: 0;
}
.delegate_box_line .t1 {
  font-size: 20px;
  color: var(--black);
  padding-bottom: 25px;
  border-bottom: 3px solid var(--blue);
}
.delegate_box_line .t2 {
  margin: 25px 0 15px 0;
  padding-bottom: 25px;
  border-bottom: 3px solid var(--blue);
  color: var(--gray);
}
.delegate_box_line .t3 {
  display: flex;
}

.delegate_box_line .t3 .small {
  display: flex;
  align-items: center;
  flex: 0 0 40%;
}
.delegate_box_line .t3 .big {
  flex: 0 0 60%;
  font-size: 40px;

  color: var(--blue);
}
.delegate_box_line .t3 .small .s1 {
  font-size: 14px;
  /* 文字中横线 */
  text-decoration: line-through;
}
.delegate_box_line .t3 .small .s2 {
  font-size: 10px;
}
.delegate_box_line .btn {
  background-color: var(--blue);
  color: #fff;
  text-align: center;
  width: 110px;
  margin: 30px auto;
  line-height: 30px;
  border-radius: 30px;
  cursor: pointer;
}
.jury_box {
  padding-bottom: 60px;
}
.jury_box .list {
  display: flex;
  justify-content: space-between;
}
.jury_box .jury_item {
  /* 一行7个 */
  flex: 0 0 14.28%;
  cursor: pointer;
}

.speakers_box {
  padding-bottom: 60px;
  background-color: #000;
}
.speakers_box .list {
  display: flex;
  justify-content: space-between;
}
.speakers_box .jury_item {
  /* 一行7个 */
  flex: 0 0 14.28%;
  cursor: pointer;
}
.speakers_box .more_ {
  color: #fff;
}
.news_box {
  position: relative;
  margin-bottom: 60px;
}
.news_box .arrow {
  cursor: pointer;
}
.news_box .list {
}
.news_box .left {
  width: 30px;
  height: 30px;
  display: block;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 50px;
  background-image: url('../images/left_a.png');
  background-size: 100% 100%;
}
.news_box .left:hover {
  background-image: url('../images/left_b.png');
}

.news_box .right {
  width: 30px;
  height: 30px;
  display: block;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  right: 50px;
  background-image: url('../images/right_a.png');
  background-size: 100% 100%;
}
.news_box .right:hover {
  background-image: url('../images/right_b.png');
}
.news_box .list {
  margin: 0 auto;
  width: 80%;
}
.news_box .news_item {
  /* 一行5个 */
  /* flex: 0 0 20%; */
  cursor: pointer;
}

.news_box .photo_box {
  width: 100%;
  display: block;
}
.news_box .photo_box .photo {
  width: 100%;
  display: block;
}
.news_box .news_text {
  color: var(--black);
  margin-top: 10px;
  /* 超出两行省略号 */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  font-size: 16px;
  text-overflow: ellipsis;
}

.banner_dot {
  display: flex;
  /* 右对齐 */
  justify-content: right;
  position: absolute;
  bottom: 16px !important;
  right: 80px !important;
  left: auto !important;
  z-index: 10;
}
.banner_bullet {
  background: var(--gray);
  width: 30px;
  height: 30px;
  display: inline-block;
  border-radius: 30px;
  margin-right: 10px;
}
.banner_bullet_active {
  background: var(--blue);
}
.tips .swiper-wrapper {
  transition-timing-function: linear !important;
}
.news_swiper {
  overflow: hidden;
}
@media screen and (max-width: 1219px) {
  .news_box .left {
    left: 2%;
  }
  .news_box .right {
    right: 2%;
  }
  .info_box_line {
    flex-direction: column;
  }
  .info_box .line2 {
    flex-direction: column;
  }
  .banner {
    position: relative;
  }
  .banner_dot {
    left:auto !important;
    bottom: 10px !important;
    right: 10px !important;
    width: auto !important;
  }
  .banner_bullet {
    width: 10px;
    height: 10px;
    border-radius: 10px;
    margin-right: 5px;
  }
  .banner .swiper-slide {
    height: 500px;
  }
  .info_box_line .box2 {
    /* 换行显示 */
    width: auto;
    flex-direction: column;
  }
  .info_box_line .text1 {
    width: 100%;
    justify-content: flex-start;
  }
  .info_box_line .text2 {
    width: 100%;
    justify-content: flex-start;
    margin-top: 20px;
  }
  .info_box_line .text1 p{
    padding-left: 0;
  }
}