* {
  margin: 0;
  padding: 0;
}
div{
  box-sizing: border-box;
}
h2{
  margin: 10px 0;
  font-size: 18px;
}
p{
  font-size: 16px;
  line-height: 30px;
  padding-bottom: 15px;
  /* text-indent: 2rem; */
  text-overflow: ellipsis;
  overflow: hidden;
}
span{
  /* font-weight: 700; */
}
.nav {
  margin: 0 auto;
  width: 100%;
  box-shadow: 0px 0px 5px rgb(36, 174, 238);
  font-size: 18px;
  background-color: rgb(83, 196, 248);
  color: #e1ecf8;
  overflow: hidden;
}
.nav ul{
  height: 40px;
  line-height: 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-content: space-around;
  justify-content: space-between;
}
.nav ul li{
  flex: 1;
}
.active{
  color: white;
  /* border-bottom: 4px solid #fff; */
}
.content div{
  width: 100%;
  margin: 0 auto;
  padding: 15px 15px;
}

@media screen and (max-width: 1000px) {
  img {
    width: 100%;
  }
}
a {
  text-decoration: none;
  color:rgb(89, 89, 190);
}

ol,ul,ol li, ul li{
  line-height: 30px;
}

.cytitle{
  text-align: center;
  font-size: 36px;
  padding: 25px 0;
}
.cytitle strong {
  padding-bottom: 5px;
}
.content ul,.content ol{
  padding-left: 1rem;
}