/* The mailbox body is 20% smaller; camera reframing makes room for the post. */
.object-envelope{--size:min(16vw,20vh)}
.art-mailbox .mailbox-canvas{left:-37.5%;top:-37.5%;width:175%;height:175%}
/* Include the upper arch in the link hit area, without covering adjacent objects. */
.object-envelope::before{content:'';position:absolute;inset:-12% 0 0;pointer-events:auto}
@media(max-width:700px){.object-envelope{--size:25.6vw}}