body,p,h2,h3 {
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100% !important;
  text-size-adjust: 100% !important;
  -moz-text-size-adjust: 100% !important;
}
a {
    text-decoration: none;
}
#app {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 100px;
}
.header {
  width: 100%;
  height: 410px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 50px;
  overflow: hidden;
}
.header_bg_pc {
  width: 100%;
  height: 100%;
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 0;
}
.header_img {
  width: 1380px;
  object-fit: cover;
  overflow: hidden;
  pointer-events: none;
  position: absolute;
  top: 1.7vw;
  left: 50%;
  transform: translateX(-50%);
}
.block {
  width: 93.6%;
  max-width: 1200px;
}
.title {
  font-size: 44px;
  font-weight: bold;
  color: #343C4B;
  margin-bottom: 80px;
  text-align: center;
}
.list {
  display: flex;
  flex-wrap: wrap;
  gap: 40px 50px;
}
.item {
  width: calc((100% - 50px) / 2);
  display: flex;
  align-items: center;
  gap: 0 24px;
  text-decoration: none;
}
.dot {
  width: 30px;
  height: 30px;
  background-image: url(../img/article_dot.png);
  background-size: 100% 100%;
  flex-shrink: 0;
}
.content {
  font-size: 16px;
  font-weight: bold;
  color: #505050;
  line-height: 40px;
}
.beian {
  font-size: 14px;
  color: #505050;
  margin: 120px 0;
  text-align: center;
}

@media screen and (max-width: 500px) {
  #app {
    padding-bottom: 50px;
  }
  .header {
    width: 100%;
    height: calc((200 / 375) * 100vw);
    margin-bottom: calc((36 / 375) * 100vw);
  }
  .header_bg {
    width: 100%;
    height: 100%;
    clip-path: polygon(0 0, 100% 0, 100% 95%, 94% 100%, 4% 100%, 0 94%);
    background-color: #F4F4F8;
    position: absolute;
    top: 0;
    left: 0;
  }
  .header_bg_pc {
    display: none;
  }
  .header_img {
    width: 100%;
    height: calc((138 / 375) * 100vw);
    top: calc((40 / 375) * 100vw);
  }
  .title {
    font-size: calc((30 / 375) * 100vw);
    margin-bottom: calc((40 / 375) * 100vw);
  }
  .list {
    flex-direction: column;
    gap: calc((28 / 375) * 100vw) 0;
  }
  .item {
    width: 100%;
    gap: calc((10 / 375) * 100vw);
  }
  .dot {
    width: calc((18 / 375) * 100vw);
    height: calc((18 / 375) * 100vw);
  }
  .content {
    flex: 1;
    font-size: calc((16 / 375) * 100vw);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .beian {
    font-size: calc((12 / 375) * 100vw);
    margin: calc((30 / 375) * 100vw) 0;
  }
}