/* DMCTN public styles v1.6.2 */
.dmctn-ai-chat{--ink:#0b0c0f;--muted:#64748b;--bg:#f8fafc;--card:#fff;--primary:#0ea5e9;
  max-width:920px;margin:20px auto;padding:10px;color:var(--ink)}
.dmctn-ai-chat .frame{background:var(--card);border-radius:16px;box-shadow:0 8px 28px rgba(2,8,23,.08);overflow:hidden}
.dmctn-ai-chat .header{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid #e5e7eb;background:#f9fbff}
.dmctn-ai-chat .ai{display:flex;gap:10px;align-items:center}
.dmctn-ai-chat .ai img{width:44px;height:44px;border-radius:999px;object-fit:cover}
.dmctn-ai-chat .brand{font-weight:700}
.dmctn-ai-chat .sub{font-size:12px;color:var(--muted)}
.dmctn-ai-chat .status .timer{background:#eef6ff;padding:6px 10px;border-radius:10px;font-weight:700}
.dmctn-ai-chat .paywall{display:grid;grid-template-columns:1.2fr 1fr;gap:12px;padding:14px}
.dmctn-ai-chat .paywall .intro{background:#f8fafc;border:1px dashed #e5e7eb;border-radius:12px;padding:12px}
.dmctn-ai-chat .form{display:flex;flex-direction:column;gap:8px;margin:6px 0}
.dmctn-ai-chat .form .row{display:flex;gap:8px}
.dmctn-ai-chat .form .row.two input{flex:1}
.dmctn-ai-chat .form input{flex:1;border:1px solid #e5e7eb;border-radius:10px;padding:10px}
.dmctn-ai-chat .qrbox{background:#f8fafc;border:1px solid #e5e7eb;border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:8px;align-items:center}
.dmctn-ai-chat .qr-img img{width:260px;height:auto}
.dmctn-ai-chat .qr-info{font-size:13px;color:var(--muted);text-align:center}
.dmctn-ai-chat .qrbox .actions{display:flex;gap:8px}
.dmctn-ai-chat button{background:var(--primary);color:#fff;border:0;border-radius:12px;padding:10px 14px;font-weight:700;cursor:pointer}
.dmctn-ai-chat button[disabled]{opacity:.6;cursor:not-allowed}
.dmctn-ai-chat .hidden{display:none}
.dmctn-ai-chat .chat{display:flex;flex-direction:column;height:520px}
.dmctn-ai-chat .messages{flex:1;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:12px;background:linear-gradient(#ffffff,#fbfdff)}
.dmctn-ai-chat .msg{display:flex;gap:10px}
.dmctn-ai-chat .msg .bubble{max-width:78%;padding:10px 12px;border-radius:16px;line-height:1.55;white-space:pre-wrap}
.dmctn-ai-chat .msg.user{justify-content:flex-end}
.dmctn-ai-chat .msg.user .bubble{background:var(--primary);color:#fff;border-top-right-radius:6px}
.dmctn-ai-chat .msg.bot .bubble{background:#eef6ff;border-top-left-radius:6px}
.dmctn-ai-chat .composer{display:flex;gap:8px;border-top:1px solid #e5e7eb;padding:10px}
.dmctn-ai-chat .composer textarea{flex:1;min-height:44px;border:1px solid #e5e7eb;border-radius:10px;padding:10px}
.dmctn-ai-chat .composer button{min-width:90px}
.dmctn-ai-chat .sources{font-size:12px;color:#334155;margin-top:6px}
.dmctn-ai-chat .sources a{color:#075985;text-decoration:underline}
@media (max-width:768px){ .dmctn-ai-chat .paywall{grid-template-columns:1fr} }
.dmctn-ai-chat .qr-actions-inline{margin-top:6px;font-size:13px;color:#0f172a}
.dmctn-ai-chat .qr-actions-inline a{color:#0ea5e9;text-decoration:underline}