.banner-box {
  width: 100%;
  height: 216px;
  background-color: #F6F8FA;
}
.banner-mian{
  width: 1200px;
  height: 100%;
  margin: 0 auto;
  background-image: url("../image/support/banner.png");
  background-size: 622px 180px;
  background-repeat: no-repeat;
  background-position: right bottom;
}
.banner-left{
  padding-top: 41px;
}
.banner-left h1{
  font-size: 28px;
  color: #333333;
  margin-bottom: 20px;
}
.banner-left p{
  font-size: 12px;
  color: #999999;
  line-height: 20px;
}

.nav-box{
  width: 1200px;
  height: 48px;
  background-color: #EBF2FC;
  margin: 12px auto;
  display: flex;
  padding: 0 36px;
  align-items: center;
}
.nav-box div{
  margin-right: 60px;
}
.nav-box div img{
  height: 14px;
  margin-right: 8px;
  vertical-align: middle;
}

.question-list{
  width: 1200px;
  margin: 0 auto;
  padding: 30px 0;
  margin-bottom: 60px;
}
.list-box h2{
  font-size: 24px;
  color: #333;
  text-align: center;
  font-weight: 800;
  margin-bottom: 36px;
}
.list-box h3{
  font-size: 16px;
  color: #333;
  border-bottom: 1px solid #EDEEF0;
  padding: 0 0 6px 0;
  margin-bottom: 30px;
  font-weight: 600;
}
.list-box .list-main{
  display: flex;
  flex-wrap: wrap;
  padding-left: 24px;
}
.list-box .list-main li{
  width: 33.33%;
  font-size: 14px;
  color: #333;
  font-weight: 400;
  margin-bottom: 20px;
  position: relative;
  padding-left: 16px;
}
.list-box .list-main li::before{
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: #333;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 0;
}
.more-box{
  font-weight: 600;
  color: #2F7CFF;
  font-size: 12px;
}

@media (max-width: 768px) {
  .banner-box{
    height: 260px;
  }
  .banner-box h1{
    line-height: 260px;
    font-size: 36px;
  }
  .nav-box{
		height: 40px;
	}
	.nav-main{
		width: 100%;
		padding: 0 15px;
		font-size: 12px;
		line-height: 40px
	}
	.nav-main b{
		font-size: 14px;
	}
	.nav-list li{
		margin-left: 8px;
	}

  .item-main{
    width: 100%;
  }
  .item-title{
    margin-bottom: 30px;
  }
  .problem-main{
    padding: 0;
  }
  .problem-list, .deploy-list{
    padding: 15px;
  }
  .problem-list li > a,.deploy-list li >a{
    width: 100%;
  }
}