/* MH OFFICE V18.23 — Support Center */
.mh-support-panel{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;min-height:70vh}
.mh-support-panel.mh-support-show{display:block!important}
.mh-support-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:16px}
.mh-support-head h2{margin:0 0 5px;font-size:22px}.mh-support-head p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.mh-support-new{border:0;background:var(--blue);color:#fff;border-radius:9px;padding:10px 14px;font-weight:800;cursor:pointer;white-space:nowrap}
.mh-support-layout{display:grid;grid-template-columns:minmax(260px,360px) minmax(0,1fr);gap:14px;min-height:590px}
.mh-support-list{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fafafa;display:flex;flex-direction:column;min-height:590px}
.mh-support-list-tools{display:grid;grid-template-columns:1fr 1fr;gap:7px;padding:10px;border-bottom:1px solid var(--line);background:#fff}
.mh-support-list-tools select,.mh-support-list-tools button{min-height:38px;border:1px solid var(--line);border-radius:8px;background:#fff;padding:7px;font-size:14px}
.mh-support-list-tools button{cursor:pointer;color:var(--blue);font-weight:800}
.mh-support-items{overflow:auto;max-height:650px}.mh-support-ticket{width:100%;border:0;border-bottom:1px solid #ece7e7;background:#fff;text-align:right;padding:12px;cursor:pointer;display:grid;gap:5px;color:inherit}
.mh-support-ticket:hover,.mh-support-ticket.active{background:#fff4f4}.mh-support-ticket-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.mh-support-ticket b{font-size:15px}.mh-support-ticket small{font-size:12px;color:var(--muted)}
.mh-support-badge{display:inline-flex;align-items:center;justify-content:center;min-width:23px;height:23px;border-radius:14px;padding:0 7px;background:#f7e7e8;color:#99191f;font-size:11px;font-weight:900}.mh-support-badge.unread{background:#b9272d;color:#fff}
.mh-support-detail{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;display:flex;flex-direction:column;min-height:590px}
.mh-support-empty{margin:auto;color:var(--muted);font-size:15px;padding:30px;text-align:center;line-height:1.8}
.mh-support-meta{border-bottom:1px solid var(--line);padding:13px 15px;background:#fbf9f9}.mh-support-meta-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}.mh-support-meta h3{margin:0 0 5px;font-size:18px}.mh-support-meta p{margin:3px 0;color:var(--muted);font-size:12px}.mh-support-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.mh-support-actions select,.mh-support-actions button{border:1px solid var(--line);border-radius:8px;background:#fff;padding:7px 9px;font-size:13px;cursor:pointer}.mh-support-actions button{font-weight:800;color:var(--blue)}
.mh-support-chat{flex:1;overflow:auto;padding:16px;background:#fcfbfb;display:flex;flex-direction:column;gap:9px;max-height:475px}.mh-support-msg{max-width:82%;padding:10px 12px;border-radius:12px;line-height:1.65;font-size:15px;white-space:pre-wrap;overflow-wrap:anywhere}.mh-support-msg.requester{align-self:flex-start;background:#f1f1f1}.mh-support-msg.office{align-self:flex-end;background:#f7dedf}.mh-support-msg.ai{align-self:flex-end;background:#eef3fb}.mh-support-msg small{display:block;margin-top:5px;font-size:10px;color:#777}.mh-support-files{padding:10px 15px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:6px}.mh-support-file{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:8px;padding:6px 9px;background:#fff;color:#333;text-decoration:none;font-size:12px}
.mh-support-reply{padding:12px;border-top:1px solid var(--line);background:#fff}.mh-support-reply textarea{width:100%;min-height:82px;border:1px solid var(--line);border-radius:9px;padding:10px;resize:vertical;font-size:15px}.mh-support-reply-row{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:8px;flex-wrap:wrap}.mh-support-reply-row input[type=file]{max-width:55%;font-size:12px}.mh-support-reply-row button{border:0;border-radius:8px;background:var(--blue);color:#fff;padding:9px 18px;font-weight:800;cursor:pointer}
.mh-support-newbox{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:14px;background:#fff9f9}.mh-support-newbox.hidden{display:none!important}.mh-support-newbox .field label{font-size:14px}.mh-support-newbox input,.mh-support-newbox textarea{font-size:15px}.mh-support-newbox .mh-diag-note{font-size:11px;color:var(--muted);line-height:1.6}
.nav button[data-support-page]{position:relative}.mh-nav-support-badge{margin-right:auto;min-width:20px;height:20px;padding:0 5px;border-radius:12px;background:#b9272d;color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:10px;font-weight:900}.nav button.active .mh-nav-support-badge{background:#fff;color:#9b171d}
@media(max-width:900px){.mh-support-layout{grid-template-columns:1fr}.mh-support-list{min-height:250px;max-height:350px}.mh-support-detail{min-height:520px}.mh-support-items{max-height:285px}.mh-support-msg{max-width:94%}.mh-support-reply-row input[type=file]{max-width:100%;width:100%}}