/*头部*/
.head-box {
  width: 100%;
}

.head-cont {
  width: 1200px;
  margin: 0 auto;
  height: 100px;
}

.logo {
  width: 250px;
  margin-top: 20px;
}

.one-to-one-img {
  width: 200px;
  margin-left: 40px;
  margin-top: 20px;
}