*{
    padding: 0;
    margin: 0;
}
.clear{
    clear: both;
}
a{
    text-decoration: none;
    color: #333;
}
p{
    color: #333;
}
body{
    min-width: 1200px;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
.item_top{  
    max-width: 1920px;
    height: 80px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: nowrap;
    line-height: 80px;
}
.item_top p{
    font-weight: bold;
}
.topL{
  width: 130px;
  height: 80px;
  margin-left: 50px;
   
}
.topL img{
    width: 100%;
    
}
.topR{
    width: 130px;
    height: 80px;
    margin-right: 50px;
   
     
  }
  .topR img{
      width: 100%;
      margin-top: 15px;

  }
.item_main{
    max-width: 1920px;
    margin: 0 auto;
    background: url('images/bg.jpg') top center no-repeat;
    background-size: cover;
    overflow: hidden;
    box-sizing: border-box;
    padding-top: 50px;
}
.item_bottom{
    max-width: 1920px;
    margin: 0 auto;
}
.item_bottom img{
    display: block;
    width: 100%;
}
.item_main_box_t{
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
    color: #fff;
}
.item_main_box{
    width: 1200px;
    height: 460px;
    margin: 50px auto;
    border-radius: 25px;
    background: #fff;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    padding: 25px 0;
}
.line{
    width: 1200px;
    display: block;
    margin: 50px auto;
    border-bottom: 1px solid #ffffff;
}
.item_main_title{
    text-align: center;
    font-size: 28px;
    font-weight: bold;
    color: #fff;
    letter-spacing: 4px;
    text-shadow: 3px 3px 4px rgb(57,110,235);
}
.item_main_box_div{
    width: 170px;
    height: 110px;
    box-sizing: border-box;
    padding-top: 10px;

}
.item_main_box_div{
    text-align: center;
    position: relative;
}
.item_main_box_div_con{
    position: absolute;
    bottom: 8px;
    left: 50%;
    margin-left: -50px;
}
.item_main_box_div_con  a{
    display: block;
    width: 100px;
    
}
.nvbtn{
    width:1100px;
    margin: 50px auto;
    display: flex;
    justify-content: space-around;

}
.nvbtn a{
    display: inline-block;
    width: 240px;
    height: 60px;
    line-height: 60px;
    border-radius: 8px;
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
    text-align: center;
}
.nvbtn .item_al{
    background-image: linear-gradient(#82bcf7,#409fff);
}
.nvbtn .item_ar{
    background-image: linear-gradient(#ff8c8c,#fe5959);
}

.item_probox{
    width: 1200px;
    margin: 50px auto;
    display: flex;
    justify-content:flex-start;
    flex-wrap: wrap;
}
.item_probox_one{
    width: 130px;
    height: 140px;
    border: 1px solid #dedede;
    position: relative;
    border-radius: 10px;
    margin: 10px 8px;
    cursor:pointer;

}
.item_probox_one .div_index{
    width: 80px;
    margin-top: 10px;
}
.item_probox_one p{
    text-align: center;
    margin-top: 5px;
    color: #fff;
}
.pro_img{
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border: 2px solid #aaaaaa;
    border-radius: 5px;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    display: none;
}
.pro_img img{
    width: 100%;
    border-radius: 10px;
}
.btmbox{
    width: 1200px;
    height: 448px;
    margin: 50px auto;
    margin-top: 24px;
    display: flex;
    justify-content: space-around;
    background: #fff;
    padding: 50px 0;
}
.btmboxson,
.btmboxson2,
.btmboxson3{
    width: 353px;
    height: 100%;
    text-align: center;
}
.btmboxtop,
.btmboxtop2,
.btmboxtop3{
    width: 100%;
    height: 58px;
    text-align: center;
    background: linear-gradient(90deg, #98C3FF, #2983FF);
    border-radius: 10px 10px 0px 0px;
}
.jiantou1{
    display: inline-block;
    width: 28px;
    height: 16px;
    background-size: 100%;
}
.btmboxtop>span,
.btmboxtop2>span,
.btmboxtop3>span{
    font-size: 24px;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 58px;
    margin: 0px 30px;
}
.jiantou2{
    display: inline-block;
    width: 28px;
    height: 16px;
    background-size: 100%;
    transform:rotateY(180deg);
}
.btmboxson>img,
.btmboxson2>img,
.btmboxson3>img{
    width: 198px;
    height: 198px;
    margin: 51px auto 34px;
    border: 2px solid #98C3FF;
}
.btmboxson2>img{
    border: 2px solid #FF99AE;
}
.btmboxson3>img{
    border: 2px solid #70CCB5;
}
.btmboxson>p,
.btmboxson2>p,
.btmboxson3>p{
    font-size: 20px;
    font-weight: 400;
    color: #444444;
    line-height: 36px;
}
.btmboxtop2{
    background: linear-gradient(90deg, #FF3866, #FF99AE); 
}
.btmboxtop3{
    background: linear-gradient(90deg, #03B487, #70CCB5);
}