html,body{
    color:#333;
    height: 100%;
    position:relative;
    background-color:#FFF;
    overflow-x: hidden;
}
html{
    font-size: 62.5%;
}
body{
    min-width:320px;
    font-size: 1.6rem;
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 100vh;
}
.life_box1{
    width: 100%;
    height: 41.58vw;
    background: url('../images/life_1.jpg') no-repeat;
    background-size: cover;
    color:#F2F2F2;
    text-align: center;
}
.life_box1 p{
    width:1180px;
    margin:0 auto;
}
.life_box1_title{
    font-weight: bold;
    font-size: 48px;
}
.life_box1 .life_box1_title{
    padding-top: 160px;
}
.life_box1_text1{
    font-size: 20px;
    padding-top: 23px;
}
.life_box1_text2{
    font-size: 24px;
    padding-top: 39px;
}

.life_box2{
    width: 100%;
    padding:100px 0;
}
.life_box2_main{
    width:1180px;
    margin:0 auto;
    color: #262626;
    text-align: center;
}
.life_box2_img{
    width: 100%;
    padding-top: 95px;
}
.life_box2_img img{
    width: 100%;
}
.life_box2_text2{
    font-size: 18px;
    text-align:right;
}

.life_box3{
    width: 100%;
    height: 47.58vw;
    background: url('../images/life_3.jpg') no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
}
.life_box_main{
    width:1150px;
    margin:0 auto;
    color: #474747;
}
.life_box_title{
    font-weight: bold;
    font-size: 46px;
    color: #FFFFFF;
}
.life_box_ul{
    width:50%;
    padding-top:40px;
}
.life_box_ul li{
    width: 521px;
    background: #FFFFFF;
    border-radius: 15px;
    margin-bottom: 20px;
    padding: 20px 15px;
}
.life_box_li_title{
    font-weight: bold;
    font-size: 26px;
}
.life_box_li_text{
    font-size: 20px;
    padding-top: 15px;
}
.life_box_ul li p{
    margin-left: 30px;
}


.life_box4{
    width: 100%;
    padding:100px 0;
}
.life_box4 .life_box_main{
    display: flex;
    align-items: center;
}
.life_box4_left{
    width: 50%;
}
.life_box4_left img{
    width: 100%;
}
.life_box4_right{
    width:50%;
}
.life_box4 .life_box_ul li{
    box-shadow: 0px 0px 10px 0px rgba(3, 40, 35, 0.33);
}
.life_box4 .life_box_title{
    color: #262626;
}
.life_box5{
    width: 100%;
    height: 47.58vw;
    background: url('../images/life_5.jpg') no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
}

/*1200px以下导航栏和页脚的样式切换*/
@media (max-width: 1200px) {
    .life_box1 p{
        width:92%;
    }
    .life_box1_title{
        font-size: 4.6rem;
    }
    .life_box1 .life_box1_title{
        padding-top: 12rem;
    }
    .life_box1_text1{
        font-size: 1.8rem;
        padding-top: 2rem;
    }
    .life_box1_text2{
        font-size: 2rem;
        padding-top: 2.5rem;
    }
    .life_box2_main{
        width:92%;
    }
    .life_box2_img{
        width: 100%;
        padding-top: 8rem;
    }
    .life_box2_text2{
        font-size: 1.6rem;
    }
    .life_box3,.life_box5{
        min-height:50rem;
    }
    .life_box_main{
        width:96%;
    }
    .life_box_title{
        font-size: 4.3rem;
    }
    .life_box_ul{
        width:60rem;
        padding-top:3rem;
    }
    .life_box_ul li{
        width: 50rem;
        border-radius: 1.4rem;
        margin-bottom: 1.8rem;
        padding: 1.8rem 1.3rem;
    }
    .life_box_li_title{
        font-size: 2rem;
    }
    .life_box_li_text{
        font-size: 1.6rem;
        padding-top: 1.2rem;
    }
    .life_box_ul li p{
        margin-left: 2rem;
    }
    .life_box4 .life_box_main{
        display: flex;
        align-items: center;
    }
    .life_box4_left{
        width: 50%;
    }
    .life_box4_right{
        width:50%;
    }
    .life_box4 .life_box_ul{
        width:100%;
    }
    .life_box4 .life_box_ul li{
        width: 100%;
        max-width: 50rem;
    }
}
@media (min-width: 769px) and (max-width: 1200px) {

}
/* 媒体查询 - 平板设备 */
/*使用rem作单位*/
@media (max-width: 768px) {
    .life_box1{
        width: 100%;
        height: 76vw;
        background: url('../images/mlife_1.jpg') no-repeat;
        background-size: cover;
    }
    .life_box1_title{
        font-size: 4rem;
    }
    .life_box1 .life_box1_title{
        padding-top: 10rem;
    }
    .life_box1_text1{
        font-size: 1.6rem;
        padding-top: 1.5rem;
    }
    .life_box1_text2{
        font-size: 1.6rem;
        padding-top: 1.8rem;
    }
    .life_box2{
        padding:8rem 0;
    }
    .life_box2_main{
        width:100%;
    }
    .life_box2_main p{
        width:92%;
        margin:0 auto;
    }
    .life_box2_img{
        width: 100%;
        padding: 4rem 0 2rem 0;
    }
    .life_box2_text2{
        font-size: 1.4rem;
        text-align:center;
    }
    .life_box3{
        width: 100%;
        height: 111.87vw;
        background: url('../images/mlife_3.jpg') no-repeat;
        background-size: cover;
        min-height:39rem;
    }
    .life_box_title{
        font-size: 4rem;
        text-align:center;
    }
    .life_box_ul{
        width:70%;
        min-width:40rem;
        margin:0 auto;
        padding-top:2rem;
    }
    .life_box_ul li{
        width: 100%;
        border-radius: 1.2rem;
        margin-bottom: 1.5rem;
        padding: 1.5rem 1rem;
    }
    .life_box_li_title{
        font-size: 1.8rem;
    }
    .life_box_li_text{
        font-size: 1.4rem;
        padding-top: 1rem;
    }
    .life_box_ul li p{
        margin-left: 1.5rem;
    }

    .life_box4{
        width: 100%;
        padding:0;
        height: 133.2vw;
        background: url('../images/mlife_4.jpg') no-repeat;
        background-size: cover;
        display: flex;
        align-items: center;
        min-height:25rem;
    }
    .life_box4_left{
        display: none;
    }
    .life_box4_right{
        width:100%;
    }
    .life_box4 .life_box_ul{
        width:70%;
    }
    .life_box4 .life_box_ul li{
        width: 100%;
        max-width: 50rem;
    }
    .life_box5{
        width: 100%;
        height: 134vw;
        background: url('../images/mlife_5.jpg') no-repeat;
        background-size: cover;
        min-height:39rem;
    }
}
/* 媒体查询 - 移动设备 */
/*使用rem作单位*/
@media (max-width: 480px) {
    .life_box1_title{
        font-size: 3rem;
    }
    .life_box1 .life_box1_title{
        padding-top: 7rem;
    } 
    .life_box1_text1{
        font-size: 1.4rem;
        padding-top: 0.6rem;
    }
    .life_box1_text2{
        font-size: 1.4rem;
        padding-top: 0.8rem;
    }
    .life_box2{
        padding:6rem 0;
    }
    .life_box2_img{
        padding: 3rem 0 1rem 0;
    }
    .life_box2_text2{
        font-size: 1.2rem;
    }
    .life_box3{
        min-height:30rem;
    }
    .life_box_title{
        font-size: 3rem;
    }
    .life_box_ul{
        width:90%;
        min-width:28rem;
    }
    .life_box_ul li{
        border-radius: 1rem;
        margin-bottom: 1rem;
        padding: 1rem 0.5rem;
    }
    .life_box_li_title{
        font-size: 1.4rem;
    }
    .life_box_li_text{
        font-size: 1.2rem;
        padding-top: 0.8rem;
    }
}