html,body{
    /*font-size:16rem;*/
    color:#333;
    height: 100%;
    position:relative;
    /*line-height:1.6rem;*/
    background-color:#FFF;
    /*overflow-x: hidden;*/
}
body{
    min-width:320px;
    font-size: 1.6rem;
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 100vh;
}
.main_cont_one{
    width: 100%;
    /*height: 92vh;*/
    min-height: 320px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    padding: 11.2rem 0 4rem 0;
    background: #EC5719;
}
.main_cont_one_title{
    width: 90%;
    margin: 0 auto;
    padding-top: 7rem;
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 4.6rem;
    color: #FFFFFF;
    text-align: center;
    letter-spacing: 5px;
    line-height: 5rem;
}
.index_box1_ul{
    width: 50rem;
    margin: 0 auto;
    padding-top: 7rem;
    min-width: 25rem;
    display: flex;
    flex-wrap: wrap;
}
.index_box1_ul li{
    width: 20rem;
    list-style: none;
    display: flex;
}
.index_box1_ul li:not(:nth-child(2n)){
    margin-right: 9rem;
}
.index_box1_ul_cont{
    width: 100%;
}
.index_box1_ul_cont img{
    width: 100%;
    display: block;
}
.index_box1_ul_cont_text{
    font-family: Microsoft YaHei;
    font-weight: bold;
    font-size: 2rem;
    color: #FFFFFF;
    text-align: center;
    position: relative;
    top: -6rem;
}
.index_box1_line{
    width: 77rem;
    margin: 0 auto;
    border: 1px solid #F28D63;
    margin-top: 5rem;
}
.index_box1_bottom_ul{
    width: 63rem;
    margin: 0 auto;
    padding-top: 4rem;
}
.index_box1_bottom_ul li{
    width: 100%;
    list-style: none;
    margin-bottom: 1.8rem;
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 1.6rem;
    color: #FFFFFF;
    display: flex;
    justify-content: space-between;
}
.index_box1_bottom_ul_li_left{
    display: flex;
    flex: 1;
}
.index_box1_bottom_ul_li_right{
    display: flex;
}
.index_box2{
    width: 100%;
    margin: 0 auto;
    height: 98rem;
    background: #F7F7F7;
    padding: 14rem 0 4rem 0;
}
.index_box2_top{
    display: flex;
    justify-content: space-between;
}
.index_box2_top_left{
    height: 1px;
    border: 1px solid #BFBFBF;
    margin-top: 2.5rem;
    display: flex;
    flex: 1;
}
.index_box2_top_center{
    width: 35rem;
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 3.6rem;
    color: #EC5719;
    text-align: center;
    height: 1px;
}
.index_box2_top_right{
    height: 1px;
    border:1px solid #BFBFBF;
    margin-top: 2.5rem;
    flex: 1;
}
.index_box2_ul{
    width: 115rem;
    margin: 0 auto;
    text-align: center;
    padding-top: 13.6rem;
    display: flex;
    /*justify-content: space-between;*/
    flex-wrap: wrap;
}

.index_box2_ul li{
    list-style: none;
    /*float: left;*/
    width: 23.6rem;
    height: 26rem;
    background: #FFFFFF;
    box-shadow: 0px 0px 8px 0px rgba(0,0,0,0.17);
    border-radius: 20px;
    margin: 0 2.5rem 4rem 2.5rem;
}
.index_box2_ul li img{
    width: 13.4rem;
    margin: 0 auto;
    display: block;
    margin-top: 6rem;
}
.index_box2_ul_text{
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 1.8rem;
    color: #4B4B4B;
    margin-top: 3.2rem;
}






/*1200px以下导航栏和页脚的样式切换*/
@media (max-width: 1200px) {
    .index_box2_top_left{
        display: none;
    }
    .index_box2_top_right{
        display: none;
    }
    .index_box2_top_center{
        width: 100%;
        margin: 0 auto;
        display: block;
    }
}


/* 媒体查询 - 平板设备 */
/*使用rem作单位*/
@media (max-width: 768px) {
    .main_cont_one{
        /*height: 75vh;*/
        min-height: 60vh;
        padding-top: 4.8rem;
    }
    .main_cont_one_title {
        width: 90%;
        margin: 0 auto;
        font-size: 2.5rem;
        padding-top: 5.5rem;
        line-height: 3rem;
    }
    .index_box1_ul{
        width: 40rem;
        margin: 0 auto;
        display: flex;
        flex-wrap: wrap;
        padding-top: 5rem;
    }
    .index_box1_ul li{
        width: 18rem;
        list-style: none;
        display: flex;
    }
    .index_box1_ul li:not(:nth-child(2n)){
        margin-right: 4rem;
    }
    .index_box1_ul_cont_text{
        font-size: 2rem;
        position: relative;
        top: -6rem;
    }
    .index_box1_line{
        width: 50rem;
        margin: 0 auto;
        border: 1px solid #F28D63;
        margin-top: 5rem;
    }
    .index_box1_bottom_ul{
        width: 43rem;
        margin: 0 auto;
        padding-top: 5rem;
    }
    .index_box1_bottom_ul li{
        width: 100%;
        list-style: none;
        margin-bottom: 1.5rem;
        font-family: Microsoft YaHei;
        font-weight: 400;
        font-size: 1.5rem;
        color: #FFFFFF;
        display: flex;
        justify-content: space-between;
    }
    .index_box2{
        height: 106rem;
        background: #F7F7F7;
        padding: 8rem 0 4rem 0;
    }
    .index_box2_top_center{
        font-size: 2.5rem;
    }
    .index_box2_ul{
        width: 40rem;
        margin: 0 auto;
        text-align: center;
        padding-top: 10.6rem;
    }

    .index_box2_ul li{
        list-style: none;
        /*float: left;*/
        width: 16rem;
        height: 17.2rem;
        background: #FFFFFF;
        box-shadow: 0px 0px 8px 0px rgba(0,0,0,0.17);
        border-radius: 20px;
        margin:0 2rem 3rem 2rem;
    }
    .index_box2_ul li img{
        width: 9rem;
        margin: 0 auto;
        display: block;
        margin-top: 3rem;
    }
    .index_box2_ul_text{
        font-family: Microsoft YaHei;
        font-weight: 400;
        font-size: 1.5rem;
        color: #4B4B4B;
        margin-top: 2.5rem;
    }
}


/* 媒体查询 - 移动设备 */
/*使用rem作单位*/
@media (max-width: 480px) {
    .main_cont_one{
        /*height: 82vh;*/
        padding: 4.8rem 0;
    }
    .index_box1_ul{
        width: 30rem;
        margin: 0 auto;
        display: flex;
        flex-wrap: wrap;
        padding-top: 5rem;
    }
    .index_box1_ul li{
        width: 14rem;
        list-style: none;
        display: flex;
    }
    .index_box1_ul li:not(:nth-child(2n)){
        margin-right: 2rem;
    }
    .index_box1_ul_cont_text{
        font-size: 1.5rem;
        position: relative;
        top: -4.5rem;
    }
    .index_box1_line{
        width: 32rem;
        margin: 0 auto;
        border: 1px solid #F28D63;
        margin-top: 1.5rem;
    }
    .main_cont_one_title{
        letter-spacing: 0; 
    }
    .index_box1_bottom_ul{
        width: 32rem;
        margin: 0 auto;
        padding-top: 2.6rem;
    }
    .index_box1_bottom_ul li{
        width: 100%;
        list-style: none;
        margin-bottom: 1.1rem;
        font-family: Microsoft YaHei;
        font-weight: 400;
        font-size: 1.3rem;
        color: #FFFFFF;
        display: flex;
        justify-content: space-between;
    }
    .index_box2{
        height: 88rem;
        background: #F7F7F7;
        padding: 6.5rem 0 4rem 0;
    }
    .index_box2_top_center{ 
        font-size: 2rem;
    }
    .index_box2_ul{
        width: 33rem;
        margin: 0 auto;
        text-align: center;
        padding-top: 8rem;
    }

    .index_box2_ul li{
        list-style: none;
        /*float: left;*/
        width: 14rem;
        height: 15.5rem;
        background: #FFFFFF;
        box-shadow: 0px 0px 8px 0px rgba(0,0,0,0.17);
        border-radius: 20px;
        margin: 0 1.2rem 2rem 1.2rem;
    }
    .index_box2_ul li img{
        width: 7rem;
        margin: 0 auto;
        display: block;
        margin-top: 3rem;
    }
    .index_box2_ul_text{
        font-family: Microsoft YaHei;
        font-weight: 400;
        font-size: 1.4rem;
        color: #4B4B4B;
        margin-top: 2.2rem;
    }
}


@media (min-width: 769px) and (max-width: 1200px) {
    .main_cont_one{
        /*height: 88vh;*/
        padding: 6rem 0;
    }
    .main_cont_one_title {
        width: 90%;
        margin: 0 auto;
        font-size: 3.5rem;
        line-height: 4rem;
    }
    .index_box2{
        height: 102rem;
        background: #F7F7F7;
        padding: 10rem 0 4rem 0;
    }
    .index_box2_top_center{
        font-size: 3rem;
    }
    .index_box2_ul{
        width: 69rem;
        margin: 0 auto;
        text-align: center;
        padding-top: 12rem;
    }

    .index_box2_ul li{
        list-style: none;
        /*float: left;*/
        width: 19rem;
        height: 20.5rem;
        background: #FFFFFF;
        box-shadow: 0px 0px 8px 0px rgba(0,0,0,0.17);
        border-radius: 20px;
        margin:0 2rem 3.5rem 2rem;
    }
    .index_box2_ul li img{
        width: 11rem;
        margin: 0 auto;
        display: block;
        margin-top: 4rem;
    }
    .index_box2_ul_text{
        font-family: Microsoft YaHei;
        font-weight: 400;
        font-size: 1.6rem;
        color: #4B4B4B;
        margin-top: 2.5rem;
    }
}