.main-container {
  background: #fff;
}

.main-container .main-layout {
  width: 1200px;
  margin: 0 auto;
  padding: 50px 0 60px;
}

.main-container .main-layout h2 {
  font-size: 16px;
  color: #333;
  text-align: center;
}

.main-container .main-layout .introduce {
  font-size: 14px;
  line-height: 21px;
  color: #333;
  margin: 10px 0;
}

.main-container .main-layout .introduce span {
  display: block;
  margin-bottom: 10px;
}

.main-container .main-layout .protocol_item {
  margin-top: 10px;
}

.main-container .main-layout .protocol_item .title {
  font-size: 14px;
  color: #333;
  line-height: 21px;
  margin: 10px 0;
  font-weight: bold;
}

.main-container .main-layout .protocol_item .title2 {
  font-size: 14px;
  color: #333;
  line-height: 21px;
}

.main-container .main-layout .protocol_item p {
  font-size: 14px;
  line-height: 28px;
  color: #666;
  text-align: justify;
}

.main-container .main-layout .link {
  font-size: 14px;
  line-height: 21px;
  color: #333;
  margin-top: 20px;
}

.main-container .main-layout .link a {
  color: #1890ff;
}
.protocol-role {
  display: flex;
}
.protocol-role>div {
  margin-right: 300px;
  line-height: 24px;
}