body {
  margin: 0;
  padding: 0;
}

/*包含以下四种的链接*/
a {
  text-decoration: none;
}

/*正常的未被访问过的链接*/
a:link {
  text-decoration: none;
}

/*已经访问过的链接*/
a:visited {
  text-decoration: none;
}

/*鼠标划过(停留)的链接*/
a:hover {
  text-decoration: none;
}

/* 正在点击的链接*/
a:active {
  text-decoration: none;
}

ul,
li {
  list-style: none
}

.row,
.container-fluid {
  margin-right: 0;
  padding-right: 0;
  padding-left: 0;
}

.flex-align {
  display: flex;
  align-items: center;
}

.img-top {
  margin-top: 100px;
}

.main-top {
  margin-top: 120px;
}

.main-cona>h4 {
  font-size: 26px;
  font-weight: 400;
  color: #333333;
}

.line {
  width: 32px;
  height: 2px;
  background: #333333;
  border-radius: 0px 0px 0px 0px;
  opacity: 1;
  margin: 40px 0 24px;
}

.main-cona>p {
  font-size: 14px;
  font-weight: 400;
  color: #999999;
  line-height: 22px;
}

.main-cona>button {
  width: 136px;
  height: 36px;
  background: #E16C00;
  border-radius: 2px 2px 2px 2px;
  opacity: 1;
  color: #fff;
  border: none;
  margin-top: 50px;
}

.btns-css {
  width: 136px;
  height: 36px;
  background: #E16C00;
  border-radius: 2px 2px 2px 2px;
  opacity: 1;
  color: #fff;
  border: none;
  margin-top: 30px;
}