* {
  margin: 0;
  padding: 0;
}
.wallpaper {
  width: 100%;
  height: 100%;
  /*background-color: #6c757d;*/
  background-position: center center;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  overflow: hidden;
}

.row{
  margin: 0;
}
.w100{
  width: 100%;
}
.mb12{
  margin-bottom: 12px;
}
.mb30{
  margin-bottom: 30px;
}
.mt30{
  margin-top: 30px;
}
.flex{
  display: flex;
}
.relative{
  position: relative;
}


/* 首页banner */
.banner{
  position: relative;
  padding: 1px;
  height:540px;
  width: 100%;
  /* background:rgba(255,255,255,1); */
  background: url('../img/img4/组 152.png');
  background-position: 90% 100%;
  /* background-size: 100% 100%; */
  background-repeat: no-repeat;

  }
.banner .banner-box{
  margin: 146px 0 0 7%;
  }
  .banner-robot-name{
    font-size:60px;
    font-family:AlibabaPuHuiTiL;
    color:#B31D22;
    line-height:60px;
    letter-spacing:10px;
  }
  .banner .banner-title{
    margin-top: 13px;
    font-size:30px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:rgba(51,51,51,1);
    line-height:40px;
    letter-spacing:12px;
  }
  .banner .banner-subtitle{
    margin-top: 14px;
    font-size:14px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    line-height:22px;
    color:rgba(51,51,51,1);
    width:530px;
  }

  .page_2{
    min-height: 450px;
    background:rgba(245,248,250,1);
    padding-top: 80px;
    padding-bottom: 50px;
  }
  .page_2_content{
    width: 90%;
    margin:auto;
    text-align: center;
  }
  .ability_img{
    margin-top: 50px;
  }
  .page_2_content_title{
    margin-bottom: 30px;
    font-size:30px;
    font-family:PingFangSC-Semibold,PingFang SC;
    font-weight:600;
    color:rgba(51,51,51,1);
    text-align: center;
  }
  .ability_title{
    margin: 30px auto 15px;
    font-size:18px;
    font-family:PingFangSC-Semibold,PingFang SC;
    font-weight:600;
    color:#B31D22;
  }
  .ability_content{
    font-size:14px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:rgba(51,51,51,1);
    line-height:20px;
  }
  .page_3{
    min-height: 630px;
    padding: 80px 135px;
    background:rgba(255,255,255,1);
  }
  .page_3_content{
    display: flex;
    justify-content: space-between;
  }
  .page_3_left_img{
    width: 185px;
    height: 100%;
    position: relative;
  }
  .page_3_left_img>img{
    width: 80%;
    height: auto;
  }
  .page_3_left_text{
    width: 35px;
    white-space: wrap;
    font-size:28px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:#B31D22;
    line-height:42px;
    position: absolute;
    top: 0;
    right: 0;
  }
  .page_3_left_text_active{
    font-size:28px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:#B31D22;
    text-align: center;
    display: none;
    margin-bottom: 50px;
  }
  .page_3_right{
    /* flex: 1;
    margin-left: 100px; */
    width: 870px;
  }
  .gridBox{
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, 31%);
    grid-template-rows: repeat(2, 220px);
    grid-row-gap: 30px;
    grid-column-gap: 30px;
    justify-content: right;
  }
  .page3_itemBox{
    padding: 20px;
    background:rgba(255,255,255,1);
    box-shadow:0px 15px 30px 0px rgba(0,0,0,0.1);
    overflow: hidden;
  }
  .page3_top{
    display: flex;
    align-items: center;
    margin-bottom: 30px;
  }
  .page3_top_title{
    margin-left: 20px;
    font-size:18px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:rgba(51,51,51,1);
    line-height:18px;
    letter-spacing:3px;
  }
  .page3_des{
    font-size:12px;
    font-family:PingFangSC-Semibold,PingFang SC;
    color:rgba(51,51,51,1);
    line-height:12px;
    white-space: nowrap;
  }
  .page3_des>span{
    font-weight: bold;
  }
  .page3_des_normal{
    font-size:12px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:rgba(51,51,51,1);
    line-height:18px;
  }

  .page_4{
    min-height: 870px;
    padding: 80px 135px;
    background:rgba(245,248,250,1);
  }
  .page4_index{
    font-size:100px;
    font-family:PingFangSC-Semibold,PingFang SC;
    font-weight:600;
    color:rgba(235,237,239,1);
    margin-bottom: 20px;
  }
  .page_4 img{
    margin-bottom: 30px;
  }
  .page4_title{
    font-size:40px;
    font-family:PingFangSC-Semibold,PingFang SC;
    font-weight:600;
    color:rgba(2,47,173,1);
    white-space: nowrap;
  }
  .page4_subDes{
    max-width:275px;
    font-size:20px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:rgba(51,51,51,1);
    line-height:30px;
    margin-top: 20px;
  }
  .page4_botTitle{
    max-width: 870px;
    font-size:20px;
    font-family:PingFangSC-Semibold,PingFang SC;
    color:rgba(51,51,51,1);
    line-height:30px;
  }
  .page4_botTitle>span{
    font-weight: bold;
  }
  .page_5{
    min-height: 640px;
    padding: 80px 135px;
    background: linear-gradient(180deg, #F5F8FA 0%, #FFFFFF 100%);
  }
  .p5-block{
    margin-bottom: 80px;
  }
  .p5-content{
    max-width: 600px;
  }
  .p5-t{
    font-size: 26px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    color: #B31D22;
  }
  .p5-c{
    margin: 20px 0;
    font-size: 18px;
    line-height: 30px;
  }
  .p5-c-item span:first-child{
    color: #000000;
  }
.p5-c-item span:last-child{
  color: #B31D22;
}
  .p5-b{
    font-size: 18px;
    font-family: Source Han Sans CN;
    font-weight: 300;
    line-height: 33px;
    color: #858585;
  }
  .b_text{
    width: 100%;
    height:123px;
    background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(0,0,0,0.8) 100%);
    border-radius:0px 0px 10px 10px;
    position: absolute;
    left: 0;
    bottom: 0;
  }
  .b_text span{
    font-size:20px;
    font-family:PingFangSC-Regular,PingFang SC;
    font-weight:400;
    color:rgba(255,255,255,1);
    position: absolute;
    white-space: nowrap;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
  }
  .buy_now{
    width:120px;
    height:50px;
    margin: 120px auto 0;
    background:rgba(0,86,227,1);
    color: #fff;
    text-align: center;
    cursor: pointer;
    line-height: 50px;
    border-radius:4px;
  }

  /*适配平板*/
@media screen  and (max-width: 1200px) {

  .banner{
    background: none;
  }
  .banner .banner-box {
    margin: 100px auto;
    width: 90%;
    text-align: center;
  }
  .banner-robot-name{
    font-size: 60px;
    line-height: 80px;
  }
  .banner .banner-title{
    margin-top: 0;
    font-size:24px;
    line-height: 40px;
  }
  .banner .banner-subtitle{
    font-size:12px;
    width:auto;
  }
  .page_3,.page_5,.page_4{
    padding: 80px 100px;
  }
  .page_3_left_text{
    display: none;
  }
  .page_3_content{
    display: block;
  }
  .page_3_left_img{
    margin: 0 auto;
  }
  .page_3_right{
    margin-left: 0px;
    width: 100%;
    margin-top: 50px;
  }
  .page_3_left_text_active{
    display: block;
  }
  .gridBox{
    justify-content: center;
  }
  .page4_con1{
    display: block;
    text-align: center;
  }
  .page4_subDes{
    max-width: 100%;
    margin-bottom: 30px;
  }
  .p5-block{
    display: block;
    text-align: center;
  }
  .p5-content{
    margin: 20px auto;
  }
}

/* 中间过渡 */
@media screen and (max-width:868px) {
  .gridBox{
    grid-template-columns: repeat(2, 270px);
    grid-template-rows: repeat(3, 220px);
  }
  .page4_con3{
    display: block;
    text-align: center;
  }
}


/*——————适配手机端————————*/
@media screen and (max-width: 575px) {
  * {
      margin: 0;
      padding: 0;
  }

  .phone_title {
      font-size: 18px !important;
  }
  .p5-block img {
    width: 100%;
  }
  .wallpaper {
      width: 100%;
      height: 100%;
      /*background-color: #6c757d;*/
      background-position: center center;
      background-size: 100% 100%;
      background-repeat: no-repeat;
  }
  .banner {
      height: 450px;
  }

  .banner .banner-box {
    margin: 100px auto;
    width: 90%;
    text-align: center;
  }

  .banner-robot-name{
    font-size: 35px;
    line-height: 60px;
  }
  .banner .banner-title{
    margin-top: 0;
    font-size:20px;
    line-height: 40px;
  }
  .banner .banner-subtitle{
    font-size:12px;
    width:auto;
  }
  .page_3,.page_5,.page_4{
    padding: 80px 40px;
  }
  .page_3_content{
    display: block;
  }
  .page_3_left_img{
    width: 140px;
    margin: 0 auto;

  }
  .gridBox{
    display: block;
    width: 270px;
    margin: 0 auto;
  }
  .page3_itemBox{
    margin-bottom: 30px;
    min-height: 220px;
  }

  .page4_con2,.page4_con3{
    display: block;
    text-align: center;
  }

}