.introduce {
  margin-top: 120px;
  margin-bottom: 70px;
}
.introduce > .top {
  display: block; /*设置为块级元素会独占一行形成上下居中的效果*/
  position: relative; /*定位横线（当横线的父元素）*/
  text-align: center;
  margin-bottom: 78px;
}

.introduce > .top > .txt {
  font-size: 40px;
  font-weight: 700;
  line-height: 60px;
}

.top span:after,
.top span:before {
  content: "";
  position: absolute; /*定位背景横线的位置*/
  top: 50%;
  background: #999999; /*背景横线颜色*/
  width: 80px; /*单侧横线的长度*/
  height: 3px;
}

.top span:before {
  left: 38%; /*调整背景横线的左右距离*/
}

.top span:after {
  right: 38%;
}

.content {
  width: 1200px;
  margin: 0 auto;
}

.content-text {
  color: #666666;
  margin-top: 35px;
  margin-bottom: 70px;
}

.title {
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  text-align: justify;
  text-align-last: left;
}

.title-text {
  font-size: 24px;
  font-weight: 500;
  line-height: 36px;
  color: #1171ff;
}

.line {
  display: block;
  width: 35.5px;
  border: 2px solid #1171ff;
  margin: 5px 0;
}

.introduce > .buttom {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
}

.introduce > .buttom > .left {
  width: 580px;
}

.introduce > .buttom > .left > .buttom {
  width: 500px;
  display: flex;
  margin: 0 auto;
  justify-content: space-around;
}

.introduce > .buttom > .left > .buttom > .left > .title {
  display: inline-block;
  font-size: 48px;
  font-weight: 700;
  line-height: 72px;
  color: #1171ff;
}

.introduce > .buttom > .left > .buttom > .left > span {
  font-size: 20px;
  font-weight: 500;
  line-height: 30px;
  color: #666;
}

.introduce > .buttom > .left > .buttom > .left > .text {
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  color: #666;
}

.introduce > .buttom > .left > .buttom > .right > .title {
  display: inline-block;
  font-size: 48px;
  font-weight: 700;
  line-height: 72px;
  color: #1171ff;
}

.introduce > .buttom > .left > .buttom > .right > span {
  font-size: 20px;
  font-weight: 500;
  line-height: 30px;
  color: #666;
}

.introduce > .buttom > .left > .buttom > .right > .text {
  font-size: 16px;
  font-weight: 500;
  line-height: 24px;
  color: #666;
}

.introduce > .buttom > .right {
  width: 580px;
}

.contact {
  margin-top: 120px;
  margin-bottom: 70px;
}
.contact > .top {
  display: block; /*设置为块级元素会独占一行形成上下居中的效果*/
  position: relative; /*定位横线（当横线的父元素）*/
  text-align: center;
  margin-bottom: 78px;
}

.contact > .top > .txt {
  font-size: 40px;
  font-weight: 700;
  line-height: 60px;
}

.content-contact {
  width: 1200px;
  height: 473px;
  margin: 0 auto;
  display: flex;
}

.container {
  width: 680px;
}

.contact > .content-contact > .right {
  width: 520px;
  background-color: #1171ff;
  padding: 0 32px;
  display: flex;
  justify-content: center;
  flex-direction: column;
}

.phone {
  font-size: 36px;
  font-weight: 500;
  line-height: 54px;
  color: #ffffff;
  margin-bottom: 50px;
}

.location {
  font-size: 26px;
  font-weight: 500;
  line-height: 39px;
  color: #ffffff;
}