body{
    margin-left: 0;
    margin-top: 0;
    background: rgb(240, 248, 254);
}
.background{
    z-index:-1;
    position: absolute;
}
.front{
    margin-left: 4vw;
    margin-right: 4vw;
    z-index:1;
    position: absolute;
}
.front1{
    margin-left: 2vw;
    z-index:2;
    position: absolute;
}
/* 文本样式 */
.title{
    font-size: 6vw;
    font-family:Arial;
    color: slateblue;
    text-align: center;
}
.text{
    font-size: 4.5vw;
    font-family:Arial;
}
.tip{
    font-size: 2.5vw;
    font-family:Arial;
    color: rgb(97, 95, 95);
}
.bold{
    font-weight: bold;
}
.notice{
    color: red;
    font-weight: bold;
}
a{
    text-decoration:none;
    color:royalblue;
}
.device_title{
    font-size:5vw;
    color: white;
}
/* 表格 */
table,td,th{
    border: none;
    border-collapse: collapse;
}
table p{
    margin-top: 0.5vw;
    margin-bottom: 0.5vw;
}
/* 图片通用 */
img{
    max-width: 100%;
}
/* 通用容器 */
.container{
    width: 100%;
}
/* 内容居中容器 */
.center_box{
    display: flex;
    justify-content: center;
}
/* 设备列表 */
.device_list{
    background-color: white;
    border-radius: 2vw;
    box-shadow: rgb(199, 196, 196) 1vw 1vw 2vw 0.5vw ;
}
/* 设备列表项 */
.device_box{
    margin-left: 4vw;
    margin-right: 4vw;
    height: 16.2vw;
    border-bottom: 1px solid lightblue;
}
.device_box .icon1{
    height:4vw;
    width:auto;
    position: relative;
    top:8.1vw;
    transform: translate(0%, -50%);
}
.device_box .icon2{
    height:4vw;
    width:auto;
    float: right;
    position: relative;
    top:8.1vw;
    transform: translate(0%, -50%);
}
.device_box span{
    color: black;
    font-size:4vw;
    position: relative;
    top:5.6vw;
    left:4vw;
    transform: translate(-50%, -50%);
}
/* 设备内容列表 */
.content_box{
    margin-left: 1vw;
    margin-right: 1vw;
    margin-bottom: 4vw;
    height: 16.2vw;
    background-color:rgb(203,230,248);
    border-radius: 2vw;
}
.content_box .icon{
    height:8vw;
    width:auto;
    position: relative;
    top:8.1vw;
    left:13vw;
    transform: translate(-50%, -50%);
}
.content_box span{
    color: black;
    font-size:4vw;
    position: relative;
    top:1.1vw;
    left:13vw;
    transform: translate(-50%, -50%);
}
/* 导航图标 */
.nav_icon{
    margin-left: 3vw;
    margin-right: 3vw;
    margin-bottom: 5.6vw;
    display: flex;
    justify-content: space-between;
}
.nav_icon img{
    height: 19vw;
    width: auto;
}
/* 顶部栏 */
.top_bar{
    height: 3vw;
    margin-top: 3.6vw;
    margin-bottom: 3vw;
    display: flex;
    justify-content: space-between;
}
.top_bar img{
    height:4vw;
    position: relative;
    bottom:1vw;
}
/* 搜索框 */
.search_input{
    border: none;
    padding: 0;
    margin:0;
    vertical-align:top;
    background-color: rgb(215, 236, 253);
    border-radius: 2vw 2vw 2vw 2vw;
    width: 92vw;
    height: 7vw;
    font-size: 4.5vw;
    line-height:100%;
}
.search_icon{
    position: absolute;
    top:11vw; 
    left:85vw; 
    height:4vw;
    width:auto;
}
/* 搜索按钮 */
/* .btn_cancel{
    border: none;
    padding: 0;
    margin:0;
    vertical-align:top;
    background-color: rgb(215, 236, 253);
    color:gray;
    border-top-right-radius: 2vw 2vw;
    border-bottom-right-radius: 2vw 2vw;
    width: 10vw;
    height: 8vw;
    font-size: 4.5vw;
    line-height:100%;
} */
/* 搜索结果容器 */
.search_box{
    height: 25vw;
    width:92vw;
    background-color: white;
    margin-top: 2vw;
    margin-bottom: 2vw;
    position: relative;
    border-radius: 2vw 2vw 2vw 2vw;
    box-shadow: rgb(199, 196, 196) 1vw 1vw 2vw 0.5vw ;
}
.search_box img{
    height: 21.3vw;
    margin: 0;
    position: absolute;
    top: 50%;
    left: 12%;
    transform: translate(-50%, -50%);
}
.search_box p{
    color:rgb(159,165,174);
    font-size: 9vw;
    margin: 0;
    position: absolute;
    top: 50%;
    left: 96%;
    transform: translate(-100%, -50%);
}
/* banner图 */
.banner{
    margin-top:3.5vw;
    margin-bottom: 3.5vw;
}
.banner img{
    width: 92vw;
    height:40vw;
}
/* 更新记录-头 */
.update_bar{
    margin-left: 3vw;
    margin-right: 3vw;
    margin-bottom: 2vw;
    display: flex;
    justify-content: space-between;
}
.update_bar img{
    width: auto;
}
/* 更新记录-表 */
.update_record{
    background-color: rgb(203,230,248);
    overflow:hidden;
    margin-bottom: 2vw;
    border-radius: 2vw;
}
.update_record table{
    margin-top: 2vw;
    width: 92vw;
}
/* 下拉按钮 */
.extend{
    text-align: center;
    margin-top: 0;
    margin-bottom: 1vw;
}
.extend img{
    width: 3vw;
}
/* 底部图片 */
.bottom_img1{
    margin-top: 4.5vw;
    margin-bottom: 3.3vw;
}
.bottom_img1 img{
    width:60vw;
}
/* 目录页标题 */
.device_title_up{
    width: 92vw;
    height:5vw;
    margin-top: 12.5vw;
    margin-bottom: 1vw;
}
.device_title_down{
    width: 92vw;
    height:5vw;
    margin-top: 1vw;
    margin-bottom: 29vw;
}