.cid-wrap{max-width:720px;margin:20px auto;padding:20px;background:#fff;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.1);font-family:Arial;}
.cid-wrap h2{color:#0f172a;margin-bottom:10px;}
.cid-wrap textarea{width:100%;border:1px solid #cbd5e1;border-radius:8px;padding:10px;min-height:80px;}
.cid-actions{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap;}
.cid-btn,.cid-upload-btn,.cid-copy{border:none;border-radius:8px;padding:10px 16px;font-weight:600;cursor:pointer;}
.cid-btn{background:#2563eb;color:#fff;}
.cid-upload-btn{background:#f1f5f9;color:#1e293b;}
.cid-copy{background:#1d4ed8;color:#fff;margin-top:8px;}
.cid-result{margin-top:10px;background:#e0ecff;padding:12px;border-radius:8px;}
#cid-time{margin-top:6px;font-size:14px;color:#475569;display:none;}
@media(max-width:600px){.cid-actions{flex-direction:column;}}