.banner {
  width: 100%;
  position: relative;
}
.banner img {
  width: 100%;
}
.banner_text {
  width: 1424px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.banner_text p {
  text-align: center;
}
.banner_text p:first-child {
  line-height: 51px;
  font-family:
    Microsoft YaHei UI,
    Microsoft YaHei UI;
  font-weight: bold;
  font-size: 40px;
  color: #ffffff;
  margin-bottom: 20px;
}
.banner_text p:nth-child(2) {
  font-family:
    Microsoft YaHei UI,
    Microsoft YaHei UI;
  font-weight: 400;
  font-size: 18px;
  color: #ffffff;
  line-height: 23px;
}

.public_box1 {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.channel_news_box {
  width: 692px;
  min-height: 365px;
  background: linear-gradient(0deg, #f7f9fc 0%, #f3f8ff 100%);
  border-radius: 12px 12px 12px 12px;
  padding: 20px;
  margin-bottom: 40px;
}

.c_n_text1 {
  line-height: 30px;
  font-weight: bold;
  font-size: 24px;
  color: #303350;
  position: relative;
  text-indent: 11px;
}

.c_n_text1::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 3px;
  height: 22px;
  background-color: #276ef9;
}

.c_n_text2 {
  line-height: 19px;
  font-weight: 400;
  font-size: 15px;
  color: #6f7182;
}
.c_n_text3 {
  line-height: 25px;
  font-weight: bold;
  font-size: 20px;
  color: #303350;
  margin-bottom: 8px;
}
.c_n_text4 {
  font-weight: 400;
  font-size: 16px;
  color: #6f7182;
  line-height: 29px;
}
.c_n_text5 {
  line-height: 19px;
  font-weight: 400;
  font-size: 15px;
  color: #989aad;
}

.c_n_bottom > a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.c_n_bottom > a:last-child {
  margin-bottom: 0;
}

.c_img {
  width: 267px;
  height: 159px;
  margin-right: 10px;
}

.c_img1 {
  width: 15px;
  height: 15px;
}

@media only screen and (max-width: 1424px) {
  .banner {
    width: 100%;
  }

  .banner_text p:first-child {
    line-height: 51rem;
    font-size: 40rem;
    margin-bottom: 20rem;
  }
  .banner_text p:nth-child(2) {
    font-size: 18rem;
    line-height: 23rem;
  }

  .channel_news_box {
    width: 692rem;
    min-height: 365rem;
    border-radius: 12rem;
    padding: 20rem;
    margin-bottom: 40rem;
  }

  .c_n_text1 {
    line-height: 30rem;
    font-size: 24rem;
    text-indent: 11rem;
  }

  .c_n_text1::before {
    top: 5rem;
    width: 3rem;
    height: 22rem;
  }

  .c_n_text2 {
    line-height: 19rem;
    font-size: 15rem;
  }
  .c_n_text3 {
    line-height: 25rem;
    font-size: 20rem;
    margin-bottom: 8rem;
  }
  .c_n_text4 {
    font-size: 16rem;
    line-height: 29rem;
  }
  .c_n_text5 {
    line-height: 19rem;
    font-size: 15rem;
  }

  .c_n_bottom > a {
    margin-bottom: 15rem;
  }

  .public_box1 {
    padding: 0 40rem;
  }

  .c_img {
    width: 267rem;
    height: 159rem;
    margin-right: 10rem;
  }

  .c_img1 {
    width: 15rem;
    height: 15rem;
  }
}