:root{--app-bg:#f5f5fa;--app-surface:#fff;--app-border:#e8e8f0;--app-muted:#8c8ca1;--chat-bg:#eef0f6;--bubble-in:#fff;--bubble-out:#e9e3ff;--bubble-operator:#d9f2e6;--bubble-broadcast:#fff4d6;--bubble-text:#1f1f2e;--preview-bg:#dfe3ee;--preview-bubble:#fff;--preview-button:#fff;--preview-button-text:#3b5bdb}:root[data-theme=dark]{--app-bg:#141420;--app-surface:#1d1d2b;--app-border:#2c2c3e;--app-muted:#8c8ca1;--chat-bg:#181826;--bubble-in:#262637;--bubble-out:#34295e;--bubble-operator:#1f3d31;--bubble-broadcast:#3d3420;--bubble-text:#e8e8f2;--preview-bg:#10101a;--preview-bubble:#262637;--preview-button:#262637;--preview-button-text:#8fa6ff}html,body,#root{background:var(--app-bg);min-height:100%;margin:0}.center-screen{justify-content:center;align-items:center;min-height:100vh;padding:16px;display:flex}.app-sider{border-right:1px solid var(--app-border)}.app-logo{cursor:pointer;white-space:nowrap;align-items:center;gap:10px;height:56px;padding:0 18px;font-size:16px;font-weight:700;display:flex;overflow:hidden}.app-sider-backdrop{z-index:15;background:#00000059;position:fixed;inset:0}.app-header{border-bottom:1px solid var(--app-border);z-index:10;align-items:center;gap:8px;display:flex;position:sticky;top:0;background:var(--app-surface)!important;height:56px!important;padding:0 16px!important;line-height:56px!important}.app-menu-toggle{font-size:18px}.app-content{box-sizing:border-box;width:100%;max-width:1400px;margin:0 auto;padding:20px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.page-header h2{margin:0!important}.muted{color:var(--app-muted)}@media (width<=991px){.app-content{padding:12px}.app-user-role{display:none}}@media (width<=480px){.app-user-name{display:none}}.inbox{grid-template-columns:340px 1fr;gap:16px;height:calc(100vh - 96px);min-height:480px;display:grid}.inbox__list,.inbox__chat{background:var(--app-surface);border:1px solid var(--app-border);border-radius:12px;flex-direction:column;min-height:0;display:flex;overflow:hidden}.inbox__list-items{flex:1;overflow-y:auto}.inbox__item{border-bottom:1px solid var(--app-border);cursor:pointer;padding:10px 14px}.inbox__item:hover,.inbox__item--active{background:var(--chat-bg)}.inbox__item-top{justify-content:space-between;gap:8px;display:flex}.inbox__item-preview{color:var(--app-muted);white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.inbox__messages{background:var(--chat-bg);flex-direction:column;flex:1;gap:8px;padding:16px;display:flex;overflow-y:auto}.inbox__chat-header{border-bottom:1px solid var(--app-border);flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;display:flex}.inbox__composer{border-top:1px solid var(--app-border);align-items:flex-end;gap:8px;padding:10px;display:flex}.bubble{max-width:min(560px,85%);color:var(--bubble-text);white-space:pre-wrap;word-break:break-word;border-radius:14px;padding:8px 12px;font-size:14px;line-height:1.45}.bubble--in{background:var(--bubble-in);border-bottom-left-radius:4px;align-self:flex-start}.bubble--out{background:var(--bubble-out);border-bottom-right-radius:4px;align-self:flex-end}.bubble--operator{background:var(--bubble-operator)}.bubble--broadcast{background:var(--bubble-broadcast)}.bubble__meta{color:var(--app-muted);text-align:right;margin-top:4px;font-size:11px}.bubble__author{color:var(--app-muted);margin-bottom:2px;font-size:12px;font-weight:600}.chat-event{color:var(--app-muted);background:var(--app-surface);border-radius:10px;align-self:center;padding:2px 10px;font-size:12px}.inbox-back{display:none!important}@media (width<=991px){.inbox-back{display:inline-flex!important}.inbox{grid-template-columns:1fr;height:calc(100vh - 80px)}.inbox--chat-open .inbox__list,.inbox:not(.inbox--chat-open) .inbox__chat{display:none}}.max-preview{background:var(--preview-bg);border-radius:16px;min-height:160px;padding:16px 12px}.max-preview__chat{flex-direction:column;gap:4px;max-width:360px;margin:0 auto;display:flex}.max-preview__bubble{background:var(--preview-bubble);color:var(--bubble-text);border-radius:14px 14px 14px 4px;padding:8px 12px;overflow:hidden}.max-preview__author{color:#6c4cf5;margin-bottom:4px;font-size:12px;font-weight:600}.max-preview__image{object-fit:cover;width:calc(100% + 24px);max-height:260px;margin:0 -12px 8px;display:block}.max-preview__text{word-break:break-word;font-size:14px;line-height:1.45}.max-preview__text code{background:#7f7f7f26;border-radius:4px;padding:0 4px}.max-preview__placeholder{color:var(--app-muted)}.max-preview__row{gap:4px;display:flex}.max-preview__button{background:var(--preview-button);min-width:0;color:var(--preview-button-text);text-align:center;white-space:nowrap;text-overflow:ellipsis;border-radius:8px;flex:1;padding:8px 6px;font-size:13px;position:relative;overflow:hidden}.max-preview__link-icon{font-size:10px;position:absolute;top:4px;right:4px}.kb-row{flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:6px;display:flex}.kb-row__label{width:56px;color:var(--app-muted);font-size:12px}.kb-button{border:1px dashed var(--app-border);cursor:pointer;text-overflow:ellipsis;white-space:nowrap;background:var(--app-surface);border-radius:8px;max-width:220px;padding:4px 10px;overflow:hidden}.kb-button:hover{border-color:#6c4cf5}.stat-card .ant-statistic-content{font-size:28px}