.attachment{display:grid;gap:8px;min-width:180px;max-width:min(420px,70vw)}
.attachment img,.attachment video{display:block;width:100%;max-height:360px;border-radius:12px;object-fit:contain;background:#0d1728}
.attachment-file{display:flex;align-items:center;gap:10px;padding:10px;border-radius:11px;background:#eef2f7;color:#17233b;text-decoration:none}
.mine .attachment-file{background:#ffffff18;color:#fff}.attachment-file b{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:#3976ea;color:#fff;font-size:18px}.attachment-file span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px}
.attachment-loading{padding:18px;color:#8994a5;font-size:10px;text-align:center}.uploading{opacity:.55;pointer-events:none}
@media(max-width:700px){.attachment{max-width:72vw}.attachment img,.attachment video{max-height:52dvh}}