.header {
  background: url(../img/project-bgc.png) no-repeat;
  background-size: 100% 100%;
}

.main {
  margin: 0 auto;
  width: 92.28%;
}
.m-title {
  font-weight: 500;
  color: #000000;
  font-size: 7.5rem;
  margin-top: 14.875rem;
  margin-bottom: 7.5rem;
}
.m-line {
  height: 2px;
  background: #dddddd;
  margin-bottom: 7.5rem;
}
.m-content {
  font-weight: 400;
  color: #333333;
  font-size: 5.5rem;
  margin-bottom: 9.875rem;
}
.pic img {
  width: 100%;
  height: 82.25rem;
  margin-bottom: 15rem;
}

.m-time {
  font-weight: 400;
  color: #999999;
  font-size: 4.5rem;
  margin-bottom: 7.5rem;
}