.h1{
  font-size: 46px;
  line-height: 54px;
  font-weight: bold;
}
.h2{
  font-size: 28px;
  line-height: 32px;
  font-weight: bold;
}
.h3{
  font-size: 18px;
  line-height: 26px;
  color: #333;
}
.h4{
  font-size: 16px;
  line-height: 24px;
  color: #333;
}

.mt20{
  margin-top: 20px !important;
}
.mt25{
  margin-top: 25px !important;
}

.t-c{
  text-align: center;
}

.link{
  display: block;
  margin: 0 auto;
  width: 100px;
  color: #D41D00;
  font-size: 18px;
  line-height: 22px;
  font-weight: bold;
  cursor: pointer;
}

.banner{
  display: flex;
  align-items: center;
  height: 640px;
  background-color: #F4F4F4;
  background-image: url(../images/server/smartServer_banner.png);
  background-size: 960px 640px;
  background-repeat: no-repeat;
  background-position: calc(100% + 70px);
}
.banner .lt{
  width: 560px;
  margin-left: 100px;
}
.banner .button{
  width: 168px;
  height: 64px;
  margin-top: 32px;
  background: linear-gradient( 90deg, #E72A29 0%, #F1605F 100%);
  border-radius: 64px;
  font-size: 20px;
  color: #fff;
  line-height: 64px;
  text-align: center;
  cursor: pointer;
}

.container{
  width: 1200px;
  margin: 120px auto 0 auto;
}
.container .h3{
  width: 1000px;
  margin: 0 auto;
}
.container .ad_img{
  display: block;
  margin: 50px auto 0 auto;
}
.container_01 .list{
  margin-top: 100px;
  display: flex;
  flex-wrap: wrap;
  gap: 33px;
}
.container_01 .list .item{
  width: 378px;
  padding: 40px 0 84px 40px;
  line-height: 0;
}
.container_01 .list .icon{
  width: 40px;
  height: 40px;
}
.container_01 .list .h4{
  max-width: 240px;
}