html,
body {
  background-color: #fff;
  overflow-x: hidden;
  /* font-size: 14px; */
}

html,
body,
ul,
li {
  margin: 0;
  padding: 0;
  font-family: 'microsoft yahei', Arial, Helvetica, sans-serif;
  /* font-family: lucida grande, lucida sans unicode, lucida, helvetica, Hiragino Sans GB, Microsoft YaHei,
    WenQuanYi Micro Hei, sans-serif; */
}

ul,
li {
  list-style: none;
}

p {
  margin: 0;
  padding: 0;
}

img {
  max-width: 100%;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.article-title {
  margin-bottom: 0.75rem;
}

.article-title .title {
  color: #3b61cd;
  font-size: 30px;
  font-weight: 700;
  line-height: 50px;
}

.article-title .sub-title {
  font-weight: 400;
  cursor: pointer;
}

.middle-model-title {
  padding: 110px;
  font-size: 30px;
  line-height: 36px;
}

.pr {
  position: relative;
}

.pa {
  position: absolute;
}

.tl {
  text-align: left;
}

.flex1 {
  flex: 1;
}