.start_office_main {
  background: url('../images/e2fa93a.jpg') no-repeat center / 100% 100%;
}
.start_office_main .start_office_center {
  width: 1200px;
  margin: 0 auto;
  color: #fff;
  font-size: 30px;
  display: flex;
  justify-content: center;
  padding: 60px 0;
  margin-top: 40px;
}
.start_office_main .start_office_center .view_video {
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 2px;
  color: #fff;
  border: 1px solid #fff;
  margin-left: 80px;
  cursor: pointer;
}
.start_office_main .start_office_center .view_video:hover {
  color: #eee;
  background-color: rgba(255, 255, 255, 0.1);
}