*,
*::before,
*::after{
    margin: 0 0;
    box-sizing: border-box;
}

:root{
    --PC-Width: 750px;
    --SP-Width: 100dvw;
}

html{
    scroll-behavior: smooth;
}


img{
    display: block;
}


.pc-only { display: block; }
.sp-only { display: none; }

@media (max-width: 1200px) {
  .pc-only { display: none !important; }
  .sp-only { display: block; margin: 0 auto; }
}