.banner {
  position: relative;
  z-index: 9;
  top: 0;
  overflow: hidden;
  width: 100%;
  height: 670px;
  background: url() no-repeat center;
}

.banner::after {
  position: absolute;
  bottom: -155px;
  left: 0;
  display: block;
  width: 100%;
  height: 340px;
  background: url('https://cloudpnrcdn.oss-cn-shanghai.aliyuncs.com/hfwebsite/new-public/images/cloud-iaas/banner-mask.png') no-repeat center;
  content: '';
}



.banner-introduce {
  margin-top: 208px;
}

.banner-title img {
  width: 572px;
  margin-left: -10px;
}

.banner-desc {
  width: 500px;
  margin-top: 12px;
  color: #5f5f5f;
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 4px;
  line-height: 40px;
  text-align: justify;
}

.main {
  position: relative;
  z-index: 10;
  margin: 0 auto;
}

* {
  box-sizing: border-box;
}

.main-section-box {
  width: 1160px;
  margin: 0 auto;
}

.main-section-box .section-guide-head {
  color: #333;
  font-size: 36px;
  font-weight: 600;
}

.main-section-1 {
  padding-bottom: 100px;
  margin-top: -50px;
}

.main-section-1 .section-guide-ul {
  display: flex;
  justify-content: space-between;
  margin-top: 64px;
}

.main-section-1 .section-guide-ul li {
  display: flex;
  width: 261px;
  height: 195px;
  flex-direction: column;
  align-items: center;
  padding-top: 30px;
  background-image: linear-gradient(197deg, #ebf3fd 1%, #f6fbff33 97%);
  border-radius: 8px;
  box-shadow: 0 10px 20px 0 #0000000a;
}

.main-section-1 .section-guide-ul li img {
  width: 100px;
  height: 100px;
  margin-bottom: 6px;
}

.main-section-1 .section-guide-ul li .section-guide-title {
  color: #333;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0;
  text-align: center;
}

.main-section-2 {
  height: 485px;
  padding: 64px 0 72px;
  background-image: linear-gradient(60deg, #f4f9ff 0%, #eaf3fe 63%, #fff 100%);
}

.main-section-2 .section-guide-ul {
  display: flex;
  width: 994px;
  justify-content: space-between;
  margin: 64px auto 0;
}

.main-section-2 .section-guide-ul li {
  display: flex;
  width: 228px;
  height: 235px;
  flex-direction: column;
  align-items: center;
  padding-top: 46px;
  background: url('https://cloudpnrcdn.oss-cn-shanghai.aliyuncs.com/hfwebsite/new-public/images/cloud-iaas/section2-item-bg.png') no-repeat center;
  background-size: contain;
}

.main-section-2 .section-guide-ul li img {
  width: 64px;
  height: 64px;
  margin-bottom: 11px;
}

.main-section-2 .section-guide-ul li .section-guide-title {
  color: #fff;
  font-size: 22px;
  font-weight: 600;
  text-align: center;
}

.main-section-3 {
  padding: 150px 0;
}

.main-section-3 .section-guide-ul {
  display: flex;
  width: 1160px;
  height: 82px;
  align-items: center;
  justify-content: space-between;
  padding: 0 50px;
  margin: 49px auto 63px;
  background-image: linear-gradient(180deg, #d8effdbf 0%, #f8fcfebf 100%);
  border-radius: 16px;
}

.main-section-3 .section-guide-ul li {
  display: flex;
  align-items: center;
}

.main-section-3 .section-guide-ul li img {
  width: 48px;
  height: 48px;
  margin-right: 8px;
}

.main-section-3 .section-guide-ul li .section-guide-title {
  color: #333;
  font-size: 14px;
  font-weight: 500;
}

.main-section-3 .section-img {
  width: 1160px;
  height: 582px;
}

.main-section-3 .section-img img {
  width: 100%;
}

.main-section-4 .section-guide {
  display: flex;
  overflow: hidden;
  width: 1160px;
  height: 412px;
  justify-content: flex-end;
  margin-top: 64px;
  background: url('https://cloudpnrcdn.oss-cn-shanghai.aliyuncs.com/hfwebsite/new-public/images/cloud-iaas/section4-bg.png') no-repeat center;
  background-size: cover;
  border-radius: 8px;
  box-shadow: -10px 0 25px 0 rgba(0, 0, 0, 0.04);
}

.main-section-4 .section-guide .section-right {
  display: flex;
  width: 512px;
  flex-direction: column;
  justify-content: center;
  margin-right: 65px;
}

.main-section-4 .section-guide .section-right .case-title {
  display: flex;
  margin-bottom: 10px;
  color: #333;
  font-size: 30px;
  font-weight: 500;
}

.main-section-4 .section-guide .section-right .case-title .case-logo {
  display: block;
  width: 46px;
  height: 46px;
  margin-right: 16px;
}

.main-section-4 .section-guide .section-right .case-content {
  margin-bottom: 28px;
  color: #5f5f5f;
  font-size: 16px;
  font-weight: 400;
  line-height: 30px;
}

.main-section-4 .section-guide .section-right .case-content:last-child {
  margin-bottom: 0;
}

.free-service {
  margin-top: 140px;
}