/* main */
.main {
  overflow: hidden;
  padding: 0 100px;
  margin-top: 80px;
}

.main-left {
  float: left;
  width: 900px;
  background: #fff;
}

.list {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 20px 50px;
  box-sizing: border-box;
}

.list li {
  width: 25%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-bottom: 20px;
  box-sizing: border-box;
  padding-right: 20px;
}

.list li a {
  color: #333;
  font-size: 14px;
}

@media (max-width: 1200px) {
  .main-left {
    width: auto;
  }
}

@media (max-width: 768px) {
  .main {
    padding: 0;
    margin-top: 40px;
  }

  .list {
    padding: 20px;
  }

  .list li {
    width: 100%;
  }

  .list li a {
    font-size: 16px;
  }
}