.content-bg{position: relative;}
.content{position: relative;z-index: 2;}
.content-bg::before{content: "";position: absolute;top: 0;left: 50%;transform: translateX(-50%);width: 100vw;height: 100%;}
.content-bg1::before{background: linear-gradient(135deg, #071a2e 0%, #0a2b47 45%, #123d66 100%);}
.content-bg2::before{background:#0a1e30;}
.content-bg3::before{background: linear-gradient(135deg, #081a2d, #123d66);}
 .full-bg{position:relative;z-index:0}
.full-bg::before{content:'';width:100vw;height:100%;display:block;position:absolute;top:0;left:50%;transform:translateX(-50%);z-index:-1;background:#f8fafc}