body{
    background: #fff;
}
#banner{
    width: 100%;
    margin-right: -100%;
    position: relative;
    margin-bottom: 70px;
}

#content{
    width: 100%;
    margin-bottom: 70px;
}
#content .content{
    width: 1280px;
    margin: 0 auto;
}
.sketch{
    width: 1280px;
    margin: auto;
}
.sketch h1{
    margin-bottom: 60px;
    text-align: center;
    font-size:40px;
    font-family:PingFangSC-Medium;
    font-weight:500;
    color:#333;
}
.sketch .design{
    width: 100%;
    height: 270px;
    padding-top: 32px;
    background: #f5f5f5;
    margin-bottom: 14px;
}
.sketch .design>div>p{
    font-size:24px;
    font-family:PingFangSC-Medium;
    font-weight:500;
    color:#333;
    letter-spacing:2px;
    margin-bottom: 34px;
}
.sketch .design>div{
    float: left;
    width: 33.3%;
    text-align: center;
}
.sketch .design>div>p img{
    width: 26px;
    height: 26px;
    margin-right: 14px;
}
.sketch .design>div ul{
    display: inline-block;
    margin-left: 44px;
}
.sketch .design>div ul li{
    float: left;
    width: 76px;
    text-align: center;
    margin-bottom: 26px;
}
.sketch .design>div ul li a{
    font-size:18px;
    font-family:PingFangSC-Regular;
    font-weight:400;
    color:#333;
    letter-spacing:1px;
}
.sketch .design>div ul li a:hover{
    color: #32BAB5;
}
.sketch>span{
    margin-right: 20px;
    font-size:18px;
    font-family:PingFangSC-Regular;
    font-weight:400;
    color:#888;
    letter-spacing:1px;
    vertical-align:middle;
    display: inline-block;
    margin-top: 5px;
}
.sketch>ul li{
    float: left;
    margin-right: 20px;
}
.sketch>ul li{
    font-size:18px;
    font-family:PingFangSC-Regular;
    font-weight:400;
    color:#32BAB5;
    line-height:25px;
    letter-spacing:1px;
    border: 1px solid #32BAB5;
    padding: 5px 10px 4px 10px;
}
.sketch>ul li a{
    color:#32BAB5;
}
.screen{
    margin-top: 50px;
    width: 100%;
}
.screen>ul li{
    float: left;
    width: 305px;
    height: 240px;
    margin-right: 20px;
    position: relative;
    margin-bottom: 20px;
}
.screen>ul li img{
    width: 100%;
    height: 100%;
}
.screen>ul li:nth-child(4n+4){
    margin-right: 0;
}
.screen>ul li .a{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 93.5%;
    padding-left: 20px;
    font-size:15px;
    font-family:PingFangSC-Regular;
    font-weight:400;
    color:#fff;
    height: 50px;
    line-height: 50px;
    background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(0,0,0,1) 100%);
}
.screen>ul li .a span{
    float: right;
    margin-right: 20px;
    font-size:14px;
    font-family:PingFangSC-Regular;
    font-weight:400;
    color:#fff;
}
.zanwu{
    text-align: center;
}
.zanwu p img{
    width: 129px;
    /*height: 168px;*/
}
.zanwu .zan{
    font-size:18px;
    font-family:PingFangSC-Regular;
    font-weight:400;
    color:#888;
    letter-spacing:1px;
    margin-top: 22px;
}