@import url(smartphone.css?12345) all and (max-width:768px);
@import url(tablet.css?12345) all and (min-width:769px) and (max-width:1024px);
@import url(laptop.css?12345) all and (min-width:1025px) and (max-width:1200px);
@import url(desktop.css?12345) all and (min-width:1201px);