@keyframes animate-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-spin{animation:animate-spin 1s linear infinite}.group-attachments-modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:500px;max-height:80vh;background:var(--light);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:1000;display:flex;flex-direction:column}.group-attachments-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.group-attachments-header h3{display:flex;align-items:center;gap:8px;margin:0;font-size:16px;color:var(--dark)}.close-btn{background:none;border:none;cursor:pointer;color:var(--gray);padding:4px;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.close-btn:hover{color:var(--dark);background:var(--hover-bg)}.group-attachments-content{flex:1;overflow-y:auto;padding:16px 20px}.upload-section{margin-bottom:16px}.upload-btn{display:inline-block;padding:8px 16px;background:var(--primary);color:#fff;border-radius:var(--radius-sm);cursor:pointer;font-size:14px;border:none;transition:all var(--transition-fast)}.upload-btn:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.upload-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.loading,.empty{text-align:center;padding:40px;color:var(--gray)}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px}.attachments-list{display:flex;flex-direction:column;gap:8px}.attachment-item{display:flex;align-items:center;gap:12px;padding:12px;background:var(--hover-bg);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.attachment-item:hover{background:var(--input-bg)}.attachment-icon{color:var(--primary)}.attachment-info{flex:1;min-width:0}.attachment-name{font-size:14px;color:var(--dark);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-meta{font-size:12px;color:var(--gray);margin-top:4px}.attachment-actions{display:flex;gap:8px}.action-btn{background:none;border:none;cursor:pointer;padding:6px;border-radius:var(--radius-sm);color:var(--gray);transition:all var(--transition-fast)}.action-btn:hover{background:var(--hover-bg)}.action-btn.download:hover{color:var(--primary)}.action-btn.delete:hover{color:var(--danger)}.action-btn.disabled{opacity:.4;cursor:not-allowed}.action-btn.disabled:hover{background:none;color:var(--gray)}.encrypted-badge{color:var(--danger);margin-right:2px}[data-theme=dark] .group-attachments-modal{background:var(--float-panel)}[data-theme=dark] .group-attachments-header h3{color:var(--text-primary)}[data-theme=dark] .attachment-item{background:#1f2937}[data-theme=dark] .attachment-item:hover{background:#374151}[data-theme=dark] .attachment-name{color:#f1f5f9}[data-theme=dark] .action-btn:hover{background:#374151}.handwriting-panel{position:absolute;bottom:100%;background:var(--light);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:10px;z-index:1000}.handwriting-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.handwriting-title{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--dark)}.handwriting-close{background:none;border:none;cursor:pointer;padding:4px;color:var(--gray);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.handwriting-close:hover{color:var(--dark);background:var(--hover-bg)}.handwriting-canvas{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pen;touch-action:none;background:var(--chat-header)}.handwriting-actions{display:flex;gap:8px;margin-top:8px}.handwriting-btn{flex:1;padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--hover-bg);cursor:pointer;font-size:13px;color:var(--dark);transition:all var(--transition-fast)}.handwriting-btn:hover{background:var(--light-gray);transform:translateY(-1px)}.handwriting-btn.recognize{background:var(--primary);color:#fff;border-color:var(--primary)}.handwriting-btn.recognize:hover{background:var(--primary-dark)}.handwriting-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.handwriting-candidates{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}.candidate-char{min-width:36px;height:36px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--hover-bg);cursor:pointer;font-size:18px;padding:0 8px;transition:all var(--transition-fast)}.candidate-char:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.candidate-fulltext{width:100%;padding:8px 12px;border:1px solid var(--primary);border-radius:var(--radius-sm);background:var(--primary-light);color:var(--primary);cursor:pointer;font-size:14px;margin-bottom:8px;transition:all var(--transition-fast)}.candidate-fulltext:hover{background:var(--primary);color:#fff}.handwriting-editor{touch-action:none;background:#fff;width:320px!important;height:200px!important;overflow:hidden}.handwriting-editor.ms-editor{width:320px!important;height:200px!important}.handwriting-editor.ms-editor .model{width:100%!important;height:100%!important}.handwriting-error{padding:20px;text-align:center;color:var(--danger)}.handwriting-hint{font-size:12px;color:var(--gray);text-align:center;margin-top:8px}[data-theme=dark] .handwriting-panel{background:var(--float-panel)}[data-theme=dark] .handwriting-canvas{background:#1f2937}[data-theme=dark] .handwriting-btn{background:#374151;border-color:#4b5563;color:#f3f4f6}[data-theme=dark] .handwriting-btn:hover{background:#4e596c}[data-theme=dark] .candidate-char{background:#374151;border-color:#4b5563;color:#f3f4f6}[data-theme=dark] .handwriting-editor{background:#1f2937}.candidate-panel{position:absolute;width:450px;bottom:100%;background:var(--light);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:10px;z-index:1000;max-height:400px;overflow-y:auto}.candidate-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.candidate-title{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--dark)}.candidate-close{background:none;border:none;cursor:pointer;padding:4px;color:var(--gray);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.candidate-close:hover{color:var(--dark);background:var(--hover-bg)}.candidate-search{margin-bottom:10px}.candidate-search-input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;color:var(--dark);background:var(--input-bg);transition:all var(--transition-fast)}.candidate-search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4361ee33}.candidate-add-btn{width:100%;padding:8px;border:1px dashed var(--border);border-radius:var(--radius-sm);background:var(--chat-header);color:var(--dark);cursor:pointer;font-size:13px;margin-bottom:10px;transition:all var(--transition-fast)}.candidate-add-btn:hover{background:var(--light-gray);border-color:var(--primary)}.candidate-add-form{display:flex;gap:6px;margin-bottom:10px}.candidate-add-input{flex:1;padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;background:var(--input-bg);color:var(--dark)}.candidate-add-confirm{padding:6px 12px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:13px;transition:all var(--transition-fast)}.candidate-add-confirm:hover{background:var(--primary-dark)}.candidate-add-cancel{padding:6px 12px;background:var(--hover-bg);color:var(--gray);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;font-size:13px;transition:all var(--transition-fast)}.candidate-add-cancel:hover{background:var(--light-gray)}.candidate-section{margin-top:10px;overflow-y:auto;height:200px}.custom-candidate{margin-top:10px}.candidate-section-title{font-size:12px;color:var(--gray);margin-bottom:8px}.candidate-list{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.candidate-item{padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--chat-recv-bubble);cursor:pointer;font-size:14px;color:var(--dark);transition:all var(--transition-fast)}.candidate-item:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.candidate-item.custom{display:flex;align-items:center;gap:6px;background:var(--primary-light);border-color:var(--primary);color:var(--primary)}.candidate-item.custom:hover{background:var(--primary);color:#fff}.candidate-remove{background:none;border:none;color:var(--gray);cursor:pointer;padding:0 4px;font-size:16px;transition:color var(--transition-fast)}.candidate-remove:hover{color:var(--danger)}.candidate-loading{display:flex;align-items:center;justify-content:center;gap:8px;padding:20px;color:var(--gray);font-size:14px}[data-theme=dark] .candidate-panel{background:var(--float-panel)}[data-theme=dark] .candidate-search-input,[data-theme=dark] .candidate-add-input{background:#1f2937;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .candidate-add-btn{background:#1f2937}[data-theme=dark] .candidate-add-btn:hover{background:#374151}[data-theme=dark] .candidate-item{background:#1f2937}[data-theme=dark] .candidate-item:hover{background:var(--primary)}.header-menu-container{position:relative}.header-menu-btn{background:none;border:none;cursor:pointer;font-size:18px;padding:5px 8px;border-radius:var(--radius-sm);transition:all var(--transition-fast);color:var(--dark)}.header-menu-btn:hover{background:var(--hover-bg)}.header-menu-dropdown{position:absolute;top:100%;left:-50px;margin-top:8px;background:var(--light);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);min-width:150px;z-index:1000;overflow:hidden}.header-menu-dropdown .menu-item{display:flex;align-items:center;gap:12px;padding:12px 16px;cursor:pointer;transition:all var(--transition-fast)}.header-menu-dropdown .menu-item:hover{background:var(--hover-bg)}.header-menu-dropdown .menu-icon{font-size:18px}.header-menu-content{padding:0}.menu-content{min-width:240px}.menu-header{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--border);font-weight:500}.menu-back{background:none;border:none;cursor:pointer;font-size:16px;padding:4px 8px;border-radius:var(--radius-sm);color:var(--dark);transition:all var(--transition-fast)}.menu-back:hover{background:var(--hover-bg)}.menu-body{padding:12px 16px}.menu-body input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;margin-bottom:12px;background:var(--input-bg);color:var(--dark);transition:all var(--transition-fast)}.menu-body input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4361ee33}.search-input-wrapper{position:relative}.search-input-wrapper input{padding-left:36px!important}.search-input-wrapper .search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--gray);pointer-events:none}.user-list{max-height:250px;overflow-y:auto}.user-item{display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.user-item:hover{background:var(--hover-bg)}.user-avatar{width:36px;height:36px;border-radius:50%;background:var(--avatar);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;overflow:hidden}.user-avatar img{width:100%;height:100%;object-fit:cover}.user-info{flex:1;min-width:0}.user-name{font-size:14px;font-weight:500;color:var(--dark);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-status{font-size:12px;color:var(--gray)}.no-results{text-align:center;padding:20px;color:var(--gray);font-size:14px}.create-btn{width:100%;padding:10px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;cursor:pointer;transition:all var(--transition-fast)}.create-btn:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.create-btn:disabled{background:var(--gray);cursor:not-allowed;transform:none}.user-item.clickable:hover{background:var(--hover-bg)}.user-item.selected{background:var(--primary-light);border-left:3px solid var(--primary)}.add-icon{color:var(--primary);opacity:0;transition:opacity .2s}.user-item.clickable:hover .add-icon,.user-item.selected .add-icon{opacity:1}.check-icon{color:var(--primary)}.group-avatar{background:var(--success)}.member-select-label{font-size:12px;color:var(--dark);margin-bottom:8px}.selected-members{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px;padding:8px;background:var(--hover-bg);border-radius:var(--radius-sm)}.selected-member-tag{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;background:var(--primary);color:#fff;border-radius:var(--radius-full);font-size:12px}.selected-member-tag svg{cursor:pointer;opacity:.8}.selected-member-tag svg:hover{opacity:1}.group-name-input input{margin-bottom:12px}.user-list.selectable .user-item{padding:8px 10px}.user-list.selectable .user-avatar{width:32px;height:32px;font-size:12px}.member-select-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.member-select-header .member-select-label{margin-bottom:0}.select-all-checkbox{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--dark);cursor:pointer}.select-all-checkbox input{width:auto;margin:0;cursor:pointer}.select-all-btn{background:none;border:1px solid var(--primary);color:var(--primary);padding:2px 8px;border-radius:var(--radius-sm);font-size:11px;cursor:pointer;transition:all var(--transition-fast)}.select-all-btn:hover{background:var(--primary);color:#fff}.loading-icon{color:var(--primary)}.loading-icon.spin{animation:spin 1s linear infinite}.user-item.loading{opacity:.7;cursor:wait}.user-item.loading .user-avatar{animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:30px;color:var(--gray);font-size:14px}.loading-state .spin{color:var(--primary)}.request-status-badge{padding:3px 8px;border-radius:var(--radius-sm);font-size:11px;font-weight:500}.request-status-badge.pending{background:#fef3c7;color:#d97706}.request-status-badge.approved{background:#dcfce7;color:#16a34a}.request-status-badge.rejected{background:#fee2e2;color:#dc2626}[data-theme=dark] .header-menu-dropdown{background:var(--float-panel)}[data-theme=dark] .header-menu-dropdown .menu-item:hover{background:#374151}[data-theme=dark] .user-item.selected{background:var(--primary-light)}[data-theme=dark] .selected-members{background:#1f2937}[data-theme=dark] .user-name,[data-theme=dark] .user-status,[data-theme=dark] .member-select-label{color:#f1f5f9}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--gray)}::selection{background:var(--primary);color:#fff}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-dark)}[data-theme=dark] ::-webkit-scrollbar-thumb{background:#4b5563}[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background:#6b7280}[disabled],.disabled{opacity:.6;cursor:not-allowed!important}@keyframes slideInRight{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes slideOutRight{0%{transform:translate(0);opacity:1}to{transform:translate(100%);opacity:0}}.toast{animation:slideInRight .3s ease}.toast.removing{animation:slideOutRight .3s ease}.panel-enter{opacity:0;transform:translate(-20px)}.panel-enter-active{opacity:1;transform:translate(0);transition:opacity .3s ease,transform .3s ease}.message-list::-webkit-scrollbar{width:6px}.message-list::-webkit-scrollbar-track{background:transparent}.message-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.message-list::-webkit-scrollbar-thumb:hover{background:var(--gray)}input::placeholder,textarea::placeholder{color:var(--gray);opacity:.7}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.image-placeholder{background:linear-gradient(90deg,var(--border) 25%,var(--background) 50%,var(--border) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;color:var(--gray);text-align:center}.empty-state svg{width:64px;height:64px;margin-bottom:16px;opacity:.5}.loading-state{display:flex;align-items:center;justify-content:center;padding:40px}.loading-spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes sendSuccess{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.send-success{animation:sendSuccess .3s ease}@keyframes messageIn{0%{opacity:0;transform:translateY(10px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.message-sending{animation:messageIn .2s ease}button:disabled{opacity:.5;cursor:not-allowed;transform:none!important}input:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);transition:box-shadow .2s ease}input[type=text],input[type=email],input[type=password],input[type=number],input[type=search],input[type=tel],textarea,select{width:100%;font-size:14px;font-family:inherit;color:var(--dark);background:var(--input-bg);border:1px solid var(--border);border-radius:var(--radius-sm);outline:none;transition:all var(--transition-normal)}input:focus,textarea:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4361ee26}input::placeholder,textarea::placeholder{color:var(--gray)}input:disabled,textarea:disabled,select:disabled{background:var(--light-gray);cursor:not-allowed}button{cursor:pointer;font-family:inherit;font-size:inherit;border:none;outline:none;transition:all var(--transition-normal)}button:hover:not(:disabled){transform:scale(1.08) translateY(-2px);box-shadow:0 4px 12px #00000026}button:active:not(:disabled){transform:scale(.95)}button:focus{outline:2px solid var(--primary);outline-offset:2px}.icon-button,.icon-btn,[class*=icon-btn],button[class*=icon],.header-menu-btn,.menu-icon-btn{display:inline-flex;align-items:center;justify-content:center;transition:all var(--transition-normal)}.icon-button:hover:not(:disabled),.icon-btn:hover:not(:disabled),[class*=icon-btn]:hover:not(:disabled),button[class*=icon]:hover:not(:disabled),.header-menu-btn:hover:not(:disabled),.menu-icon-btn:hover:not(:disabled){transform:scale(1.15)}.icon-button:hover:not(:disabled) svg,.icon-btn:hover:not(:disabled) svg,[class*=icon-btn]:hover:not(:disabled) svg,button[class*=icon]:hover:not(:disabled) svg,.header-menu-btn:hover:not(:disabled) svg,.menu-icon-btn:hover:not(:disabled) svg{transform:scale(1.15)}.scroll-to-bottom,.scroll-to-bottom-btn{transition:transform .2s ease!important}.scroll-to-bottom:hover,.scroll-to-bottom-btn:hover{transform:scale(1.2)!important}:root{--primary: #3b82f6;--primary-dark: #2563eb;--primary-light: #dbeafe;--primary-glow: rgba(59, 130, 246, .3);--secondary: #8b5cf6;--secondary-dark: #7c3aed;--secondary-light: #ede9fe;--success: #10b981;--success-light: #d1fae5;--warning: #f59e0b;--warning-light: #fef3c7;--danger: #ef4444;--danger-light: #fee2e2;--online: #22c55e;--away: #eab308;--offline: #94a3b8;--muted: #f97316;--banned: #dc2626;--reply: #0ea5e9;--dark: #334155;--gray: #94a3b8;--light: #f8fafc;--sidebar: #ffffff;--chat: #f1f5f9;--chat-header: #ffffff;--chat-bubble: #3b82f6;--chat-recv-bubble: #ffffff;--border: #e2e8f0;--light-gray: #f1f5f9;--input-bg: #ffffff;--background: linear-gradient(135deg, #3b0764 0%, #1e1b4b 100%);--login-background: #fafafa;--avatar: #3b82f6;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--chat-text: var(--dark);--chat-send-text: #ffffff;--chat-sys-message: #e0e8f0;--attachment: var(--light);--text-secondary: var(--gray);--login-light: #ffffff;--hover: #f1f5f9;--hover-bg: #f8fafc;--chat-font-size: 16px}[data-theme=dark]{--primary: #60a5fa;--primary-dark: #0c2c60;--primary-light: #1e3a5f;--primary-glow: rgba(96, 165, 250, .3);--secondary: #a78bfa;--secondary-dark: #8b5cf6;--secondary-light: #2e1a47;--success: #34d399;--success-light: #064e3b;--warning: #fbbf24;--warning-light: #78350f;--danger: #f87171;--danger-light: #7f1d1d;--light: #0f172a;--dark: #f1f5f9;--gray: #94a3b8;--light-gray: #1e293b;--border: #334155;--online: #4ade80;--away: #facc15;--offline: #64748b;--muted: #fb923c;--banned: #f87171;--reply: #38bdf8;--sidebar: #0f172a;--chat: #0f172a;--chat-header: #1e293b;--chat-bubble: #3b82f6;--chat-recv-bubble: #1e293b;--chat-text: var(--dark);--chat-send-text: #ffffff;--chat-sys-message: #1e293b;--input-bg: #1e293b;--attachment: var(--light);--settings-item: var(--light-gray);--login-light: #1e293b;background:linear-gradient(135deg,#0f172a,#1e1b4b);color:#f1f5f9;--background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);--login-background: #1e293b;--float-panel: #161f31;--login: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);--avatar: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);--text-secondary: var(--gray);--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .3);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .4), 0 2px 4px -2px rgb(0 0 0 / .3);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .5), 0 4px 6px -4px rgb(0 0 0 / .4);--hover: #374151;--hover-bg: #1f2937}[data-theme=dark] body{background:var(--login-background)}[data-theme=dark] .login-container{background:#161f31}[data-theme=dark] .login-header h1,[data-theme=dark] .login-header p,[data-theme=dark] .input-group label{color:#f1f5f9}[data-theme=dark] .input-group input{background:#374151;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .contact{border-bottom:1px solid #374151}[data-theme=dark] .contact:hover{background:#374151}[data-theme=dark] .contact.active{background:var(--primary-light);border-left:3px solid var(--primary)}[data-theme=dark] .admin-table{background:var(--sidebar);box-shadow:var(--shadow-lg)}[data-theme=dark] .admin-table th{background:var(--sidebar);color:var(--dark)}[data-theme=dark] .admin-table td button:hover{background:var(--primary);color:#fff}[data-theme=dark] .admin-table td .btn-danger{background:linear-gradient(135deg,#7f1d1d,#991b1b);color:#fecaca}[data-theme=dark] .admin-table tbody tr:hover{background:var(--light-gray)}[data-theme=dark] .admin-panel{background:#111827}[data-theme=dark] .admin-header{background:#1f2937;border-bottom-color:#374151}[data-theme=dark] .admin-header h1,[data-theme=dark] h3{color:#f1f5f9}[data-theme=dark] .admin-tabs{background:#1f2937;border-right-color:#374151}[data-theme=dark] .admin-tabs button{color:#d1d5db}[data-theme=dark] .admin-tabs button:hover{background:#374151;color:#f1f5f9}[data-theme=dark] .admin-content{background:#111827}[data-theme=dark] .admin-toolbar .search-input{background:#1f2937;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .admin-table td button,[data-theme=dark] .admin-badge{background:#374151;color:#f1f5f9}[data-theme=dark] .admin-header .btn-logout{background:#374151;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .admin-header .btn-logout:hover{background:var(--danger);border-color:var(--danger);color:#fff}[data-theme=dark] .modal-content{background:var(--sidebar);box-shadow:var(--shadow-lg)}[data-theme=dark] .modal-header{background:linear-gradient(135deg,var(--primary-light) 0%,transparent 100%)}[data-theme=dark] .chat-area{background:#111827}[data-theme=dark] .chat-header{background:#1f2937;border-bottom:1px solid #374151}[data-theme=dark] .chat-header-info .chat-title-text{color:#f3f4f6}[data-theme=dark] .chat-header-info .chat-status-text{color:#9ca3af}[data-theme=dark] .message-input-container{background:#1f2937;border-top:1px solid #374151}[data-theme=dark] .message-input{background:#374151;border:1px solid #4b5563;color:#f3f4f6}[data-theme=dark] .message-input::placeholder{color:#9ca3af}[data-theme=dark] .message-sent{background:#4f46e5}[data-theme=dark] .message-received{background:#374151}[data-theme=dark] .group-settings-header{background:#262c3a}[data-theme=dark] .message-content{color:#f3f4f6}[data-theme=dark] .message-sender{color:#9ca3af}[data-theme=dark] .message-time,[data-theme=dark] .message-status{color:#6b7280}[data-theme=dark] .tabs{background:#1f2937;border-bottom:1px solid #374151}[data-theme=dark] .tab-item{color:#9ca3af}[data-theme=dark] .tab-item.active{border-bottom-color:#6366f1}[data-theme=dark] .search-box input{background:#374151;border:1px solid #4b5563;color:#f3f4f6}[data-theme=dark] .search-box input::placeholder{color:#9ca3af}[data-theme=dark] .avatar{background:linear-gradient(45deg,var(--primary),var(--secondary));color:#f3f4f6}[data-theme=dark] .contact-name{color:#f3f4f6}[data-theme=dark] .contact-message{color:#9ca3af}[data-theme=dark] .contact-time{color:#6b7280}[data-theme=dark] .modal-overlay{background:#000000b3}[data-theme=dark] .modal{background:#1f2937;border:1px solid #374151}[data-theme=dark] .modal h2,[data-theme=dark] .modal h3{color:#f3f4f6}[data-theme=dark] .close-btn{color:#9ca3af}[data-theme=dark] .user-panel-header{background:#1f2937;border-bottom:1px solid #374151}[data-theme=dark] .user-panel-info h3{color:#f3f4f6}[data-theme=dark] .settings-panel{background:#111827}[data-theme=dark] .settings-header{background:#1f2937;border-bottom:1px solid #374151}[data-theme=dark] .settings-header h2{color:#f3f4f6}[data-theme=dark] .settings-content{background:#1f2937}[data-theme=dark] .settings-user h3{color:#f3f4f6}[data-theme=dark] .settings-user p{color:#9ca3af}[data-theme=dark] .settings-item label{color:#f3f4f6}[data-theme=dark] .settings-item input,[data-theme=dark] .settings-item select{background:#374151;border:1px solid #4b5563;color:#f3f4f6}[data-theme=dark] .settings-save-btn{background:#6366f1;color:#fff}[data-theme=dark] .settings-save-btn:hover{background:#4f46e5}[data-theme=dark] .member-item:hover{background:#374151}#root{width:100%;display:flex;align-items:center;justify-content:center}body{background:var(--login-background)}.chat-container{width:100%;height:100vh;display:flex}.sidebar{width:280px;min-width:260px;background:var(--sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:all .3s ease}.stats-panel{flex:1;padding:20px;background:var(--light);display:flex;flex-direction:column;min-height:0}.stats-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}.stats-header h2{font-size:20px;font-weight:600;color:var(--dark);margin:0}.stats-header select{padding:8px 16px;border:1px solid var(--border);border-radius:8px;background:var(--light);color:var(--dark);font-size:14px;cursor:pointer}.stats-loading{text-align:center;padding:40px;color:var(--text-secondary)}.stats-error{text-align:center;padding:40px;color:var(--danger);background:var(--light);border-radius:12px}.stats-chart{background:var(--light);border-radius:12px;padding:20px;margin-bottom:24px;box-shadow:0 2px 8px #0000000d}.stats-chart h3{font-size:16px;font-weight:600;color:var(--dark);margin:0 0 16px}.stats-chart .no-data{text-align:center;color:var(--text-secondary);padding:40px}.chart-container{height:200px;display:flex;align-items:flex-end;overflow-x:auto;padding-top:10px}.chart-bars{display:flex;gap:4px;align-items:flex-end;height:100%;flex:1}.chart-bar-wrapper{display:flex;flex-direction:column;align-items:center;flex:1;min-width:20px}.chart-bar{width:100%;min-height:4px;border-radius:4px 4px 0 0;transition:height .3s ease;max-width:40px}.chart-bar:hover{opacity:.8}.chart-label{font-size:10px;color:var(--text-secondary);margin-top:8px;white-space:nowrap;transform:rotate(-45deg);transform-origin:top}.sidebar-header{padding:8px;border-bottom:1px solid var(--border);display:flex;gap:5px;align-items:center;justify-content:space-between}.tabs{display:flex;padding:10px 12px;gap:6px;border-bottom:1px solid var(--border);background:var(--sidebar);justify-content:center;overflow-x:auto;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab-item{padding:8px 10px;border-radius:var(--radius-full);font-size:13px;font-weight:500;color:var(--gray);cursor:pointer;transition:all var(--transition-normal);white-space:nowrap;flex-shrink:0}.tab-item:hover{background:var(--light-gray);color:var(--dark);transform:translateY(-2px)}.tab-item.active{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;box-shadow:var(--shadow-sm)}.user-list-container{flex:1;display:flex;flex-direction:column;overflow:hidden}.user-list-container .contacts{flex:1;overflow-y:auto;padding:5px;background:var(--light);border-radius:16px}.logo{font-size:20px;font-weight:700;color:var(--primary);display:flex;align-items:center}.logo i{margin-right:10px}.user-actions{display:flex;gap:12px}.action-btn{width:40px;height:40px;border-radius:var(--radius-md);background:var(--sidebar);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-normal);color:var(--gray);box-shadow:var(--shadow-sm)}.action-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}.search-container{padding:16px;border-bottom:1px solid var(--border);background:var(--sidebar)}.search-box{position:relative;padding:5px}.search-box input{width:100%;padding:8px 15px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--input-bg);font-size:14px;transition:all var(--transition-normal)}.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4361ee26}.search-box i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--gray)}.contacts{flex:1;overflow-y:auto}.contact{display:flex;align-items:center;padding:12px 15px;gap:15px;cursor:pointer;transition:all var(--transition-normal);border-bottom:1px solid var(--border);border-radius:12px;margin:4px 8px}.contact:hover{background:var(--light-gray);transform:translate(4px);box-shadow:0 2px 8px #00000014}.contact.active{background:var(--primary-light);border-left:3px solid var(--primary);box-shadow:0 2px 8px #667eea33}.avatar{position:relative;width:50px;height:50px;border-radius:50%;background:var(--avatar);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast)}.contact:hover .avatar{transform:scale(1.05)}.context-menu{background:var(--sidebar);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);min-width:160px;overflow:hidden;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.context-menu div{padding:12px 16px;cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:8px;font-size:14px;background:var(--chat);border-radius:var(--radius-sm);box-shadow:var(--shadow-lg)}.context-menu div:hover{background:var(--primary-light);color:var(--primary-dark)}.context-menu div:last-child{border-bottom:none}.status-indicator{position:absolute;width:12px;height:12px;border-radius:50%;border:2px solid white;bottom:0;right:0;box-shadow:var(--shadow-sm)}[data-theme=dark] .context-menu{background:#192235f2}[data-theme=dark] .context-menu div:hover{background:var(--primary);color:#fff}.status-online{background:var(--online);box-shadow:0 0 8px var(--online)}.status-away{background:var(--away);box-shadow:0 0 8px var(--away)}.status-offline{background:var(--offline)}.status-muted{background:var(--muted);box-shadow:0 0 8px var(--muted)}.status-banned{background:var(--banned);box-shadow:0 0 8px var(--banned)}.contact-info{flex:1;min-width:0}.contact-name{font-weight:600;margin-bottom:5px;color:var(--dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.contact-message{font-size:13px;color:var(--gray);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:180px}.contact-time{font-size:12px;color:var(--gray);flex-shrink:0;margin-left:10px}.chat-area{flex:1;display:flex;flex-direction:column;background:#f1f5f9;position:relative;overflow:hidden;max-width:100%}.chat-header{padding:15px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--chat-header);flex-shrink:0}.chat-header-info{flex:1;display:flex;align-items:center;gap:12px;padding:8px 12px;border-radius:12px;transition:all .3s ease}.chat-header-info:hover{background:#3b82f61a;transform:scale(1.02)}.chat-header-actions{display:flex;gap:10px}.action-icon{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--gray);transition:all .2s;background:transparent;border:none;font-size:18px}.action-icon:hover{background:var(--light-gray);color:var(--primary)}.action-icon{position:relative;padding:8px;border-radius:var(--radius-sm);transition:all var(--transition-normal)}.action-icon:hover{background:var(--light-gray)}.notification-badge{position:absolute;top:-6px;right:-6px;min-width:18px;height:18px;padding:0 5px;border-radius:var(--radius-full);background:linear-gradient(135deg,#dc2626,#b91c1c);color:#fff;font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}.more-menu{position:absolute;top:50px;right:10px;background:var(--sidebar);border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:var(--shadow-lg);z-index:100;min-width:160px;overflow:hidden;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.more-menu button{width:100%;padding:12px 16px;border:none;background:transparent;text-align:left;cursor:pointer;font-size:14px;color:var(--dark);transition:background .2s;display:flex;align-items:center;gap:10px}.more-menu button:hover{background:var(--light-gray)}.more-menu button:last-child{border-top:1px solid var(--border)}.add-member-section{margin-top:10px}.add-member-btn{width:100%;padding:10px;background:var(--primary);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:14px;margin-bottom:10px;display:flex;align-items:center;justify-content:center;gap:8px}.add-member-btn:hover{background:var(--primary-dark)}.remove-member-btn{padding:4px 10px;background:#ff4757;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:12px;margin-left:auto}.remove-member-btn:hover{background:#ff6b7a}.remove-owner-btn{padding:4px 10px;background:#ffa502;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:12px;margin-left:4px}.remove-owner-btn:hover{background:#ffbe4d}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn var(--transition-fast)}.modal-content{background:var(--sidebar);border-radius:var(--radius-lg);width:90%;max-width:480px;max-height:80vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 20px 60px #0000004d;animation:slideUp var(--transition-normal);transform:scale(.9);transition:transform .3s ease,box-shadow .3s ease}.modal-content:hover{transform:scale(1);box-shadow:0 25px 70px #00000059}.report-dialog{background:var(--light)}.report-message-preview{background:var(--input-bg);padding:12px;border-radius:12px;margin-bottom:16px}.report-sender{font-size:12px;color:var(--text-secondary);margin-bottom:6px}.report-content{font-size:14px;color:var(--text);word-break:break-word}.report-reason-section label,.report-description-section label{display:block;font-weight:500;margin-bottom:8px;font-size:14px}.reason-options{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.reason-option{display:flex;align-items:center;gap:6px;padding:10px 12px;background:var(--input-bg);border-radius:8px;cursor:pointer;font-size:13px;transition:all .2s ease}.reason-option:hover{background:var(--primary-light);transform:translateY(-2px)}.reason-option input{accent-color:var(--primary)}.report-description-section{margin-top:16px}.report-description-section textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:12px;resize:vertical;font-size:14px;font-family:inherit;transition:all .2s ease;background:var(--input-bg);color:var(--text)}.report-description-section textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px #4361ee26;transform:translateY(-2px)}.modal-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;background:linear-gradient(135deg,var(--primary-light) 0%,transparent 100%)}.key-input{flex:1;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:monospace;background:var(--input-bg);color:var(--dark);transition:all var(--transition-fast)}.key-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4361ee33}.key-btn{padding:8px 12px;background:var(--hover-bg);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);color:var(--dark)}.key-btn.primary:hover{background:var(--primary-dark)}.key-btn.primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.key-btn.secondary{background:var(--hover-bg)}.legacy-key-item{padding:8px;background:var(--hover-bg);border-radius:var(--radius-sm)}.modal-close{padding:4px;background:none;border:none;cursor:pointer;color:var(--gray);border-radius:var(--radius-sm);transition:all var(--transition-fast)}.modal-close:hover{color:var(--dark);background:var(--hover-bg)}.modal-header h3{margin:0;font-size:16px;font-weight:600;color:var(--dark)}.modal-body{padding:20px;overflow-y:auto}.modal-body p{margin:0 0 12px;color:var(--gray);font-size:14px;line-height:1.6}.key-modal{max-width:500px}.key-modal .modal-body{max-height:60vh}.key-section{margin-bottom:20px}.key-section:last-child{margin-bottom:0}.key-section>label{display:block;font-weight:600;margin-bottom:8px;color:var(--dark)}.key-display{display:flex;gap:8px;align-items:center}.key-input{flex:1;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:monospace;background:var(--light);color:var(--dark)}.key-input.small{padding:6px 8px;font-size:12px}.key-btn{padding:8px 12px;background:var(--hover);border:1px solid var(--border);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;color:var(--dark)}.key-btn:hover{background:var(--primary);color:#444;border-color:var(--primary)}.key-btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.key-btn.primary:hover{opacity:.9}.key-btn.primary:disabled{opacity:.5;cursor:not-allowed}.key-btn.primary:disabled:hover{background:var(--primary);color:#fff}.key-btn.secondary{background:var(--light)}.key-btn.danger:hover{background:var(--danger);border-color:var(--danger)}.key-btn.small{padding:4px 8px}.key-change{display:flex;gap:8px;align-items:center}.key-change .key-input{flex:1}.legacy-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;margin-bottom:8px}.legacy-header label{margin-bottom:0}.legacy-toggle{font-size:12px;color:var(--primary)}.legacy-keys-list{display:flex;flex-direction:column;gap:8px}.legacy-key-item{padding:8px;background:var(--light);border-radius:8px}.legacy-key-row{display:flex;gap:6px;align-items:center}.legacy-index{font-size:12px;color:var(--gray);min-width:20px}.key-tip{display:block;margin-top:8px;font-size:12px;color:var(--gray)}[data-theme=dark] .key-section>label,[data-theme=dark] .key-input,[data-theme=dark] .legacy-header label{color:#f1f5f9}[data-theme=dark] .key-input{background:#1f2937;border-color:#4b5563}[data-theme=dark] .key-btn{background:#374151;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .key-btn:hover{background:var(--primary)}[data-theme=dark] .legacy-key-item{background:#1f2937}[data-theme=dark] .legacy-index{color:#9ca3af}.modal-close{padding:4px;background:none;border:none;cursor:pointer;color:var(--gray);border-radius:4px;transition:all .2s}.modal-close:hover{background:var(--hover);color:var(--dark)}.member-select-list{display:flex;flex-direction:column;gap:8px}.member-select-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;cursor:pointer;transition:background .2s}.member-select-item:hover{background:var(--light-gray)}.member-select-item .member-avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px}.member-select-item span{font-size:14px}.member-item{display:flex;align-items:center;padding:12px 16px;gap:12px;border-radius:var(--radius-sm);transition:all var(--transition-normal)}.member-item:hover{background:var(--light-gray)}.member-item .member-name{flex:1;font-weight:500}.owner-badge{padding:4px 10px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border-radius:var(--radius-sm);font-size:11px;font-weight:600}.member-context-menu-toggle{display:inline-flex;align-items:center;justify-content:center;padding:6px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition-normal)}.member-context-menu-toggle:hover{background:var(--light-gray);color:var(--primary)}.member-context-menu{position:absolute;right:10px;background:var(--light);border-radius:8px;border:1px solid var(--border);box-shadow:0 4px 12px #00000026;z-index:100;min-width:120px;overflow:hidden}.member-context-menu button{width:100%;padding:12px 16px;border:none;background:transparent;text-align:left;cursor:pointer;font-size:14px;color:var(--dark);transition:background .2s;display:flex;align-items:center;gap:10px}.member-context-menu button:hover{background:var(--light-gray)}.member-context-menu button.danger{color:var(--danger);border-top:1px solid var(--border)}.messages-container{flex:1;overflow-y:auto;background:var(--chat);display:flex;flex-direction:column;min-height:0;position:relative;padding:20px}.messages-container.dragging{background:#e0e7ff}.messages-container.dragging:after{content:"松开鼠标上传文件";position:fixed;top:50%;left:50%;transform:translate(40%,-70%);background:var(--primary);color:#fff;padding:20px 40px;border-radius:12px;font-size:16px;font-weight:600;z-index:9999;pointer-events:none}.message{max-width:70%;padding:8px;margin-bottom:12px;border-radius:16px;position:relative;animation:fadeIn .3s ease}.message-row{display:flex;margin-bottom:12px;align-items:flex-start;position:relative;transition:background-color .3s ease;padding:4px 8px;border-radius:12px}.message-row.highlight-message{background-color:#4361ee26;border-radius:8px;padding:4px;margin:-4px}.message-row{animation:messageSlideIn var(--transition-normal)}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-row.received{justify-content:flex-start}.message-row.sent{justify-content:flex-end}.message-avatar-wrapper{flex-shrink:0;margin-top:auto}.message-avatar{width:36px;height:36px;border-radius:50%;background:var(--avatar);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast)}.message-avatar:hover{transform:scale(1.05)}.message-content-wrapper{max-width:70%;font-size:18px}.message.received{background:#fff!important;color:var(--dark);margin-right:auto;border-bottom-left-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--border)}.message.sent{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%)!important;color:#fff;margin-left:auto;border-bottom-right-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.message-sender-name{font-size:12px;color:var(--primary);font-weight:500;margin-bottom:4px}.message.sent .message-sender-name{display:none}.message-sender{font-size:11px;opacity:.7}.message-time{font-size:11px;opacity:.7;margin-left:auto}.date-divider{text-align:center;margin:20px 0}.date-divider span{background:var(--chat-sys-message);color:#6c757d;padding:4px 12px;border-radius:12px;font-size:12px}.loading-more-messages,.no-more-messages{text-align:center;padding:10px;color:#888;font-size:12px}.loading-more-messages span{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;background:var(--chat-sys-message);border-radius:16px}.loading-more-messages .spinner{display:"inline-block";width:"24px";height:"24px";border:"3px solid #f3f3f3";border-top:"3px solid #3498db";border-radius:"50%";animation:spin\ 1s\ linear\ infinite;margin:"0 auto"}.loading .spinner{display:inline-block;width:32px;height:32px;border:3px solid #f3f3f3;border-top:3px solid var(--primary);border-radius:50%;animation:spin 1s linear infinite}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid #ddd;border-top:2px solid #888;border-radius:50%;animation:spin 1s linear infinite;margin-right:10px;vertical-align:middle}.loading-spinner.small{width:16px;height:16px;border-width:2px}.loading-spinner.large{width:32px;height:32px;border-width:3px}.no-more-messages span{display:inline-block;padding:6px 16px;background:var(--chat-sys-message);border-radius:16px;color:#666}.system-message{text-align:center;margin:10px 0;display:flex;justify-content:center}.system-message span{background:var(--chat-sys-message);color:#888;padding:4px 12px;border-radius:12px;font-size:12px;display:flex;gap:5px}.chat-title-text{font-weight:600;color:var(--dark);font-size:16px}.chat-status-text{font-size:12px;color:var(--online)}.chat-status-text.offline{font-size:12px;color:var(--offline)}.chat-status-text.muted{font-size:12px;color:#f97316;font-weight:700}.chat-status-text.banned{font-size:12px;color:#dc2626;font-weight:700}.chat-header-content{flex:1;min-width:0}.chat-header-signature{font-size:12px;color:var(--gray);font-style:italic;max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:2px 0}[data-theme=dark] .chat-header-signature{color:#9ca3af}.user-signature{color:#888;font-style:italic;max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block}.signature-separator{color:var(--gray)}[data-theme=dark] .user-signature{color:#9ca3af}.unread-badge{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;font-size:11px;font-weight:600;padding:3px 8px;border-radius:var(--radius-full);min-width:20px;text-align:center;margin-top:5px;box-shadow:var(--shadow-sm);animation:badge-pulse 2s ease-in-out infinite}@keyframes badge-pulse{0%,to{transform:scale(1);box-shadow:var(--shadow-sm),0 0 8px #ef44441a}50%{transform:scale(1.1);box-shadow:var(--shadow-md),0 0 10px #ef4444a6,0 0 15px #dc26260d}}.message-status{font-size:12px;margin-left:5px}.message-status.unread{color:#fffc3f;font-weight:500}.received .message-info{color:var(--gray)}.sent .message-info{color:var(--light)}.starred-indicator{margin-left:4px;font-size:12px}.sent .message-content{color:var(--chat-send-text)}.message-input-area{padding:8px 5px;display:flex;align-items:center;flex-shrink:0}.input-actions{display:flex;gap:2px;margin-right:15px;flex-shrink:0}.input-action{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--gray);transition:all .2s;background:transparent;border:none;font-size:18px}.input-action:hover{background:var(--light-gray);color:var(--primary)}.input-action.active{background:#ff47571a;color:#ff4757}.input-action.recording{background:#ff475733;animation:pulse 1s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.message-input{flex:1;border:1px solid var(--border);border-radius:var(--radius-md);padding:12px 20px;resize:none;min-height:100px;max-height:150px;font-size:15px;transition:all var(--transition-normal);font-family:inherit;line-height:1.5;background:var(--input-bg);color:var(--dark)}.message-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px #4361ee26,0 4px 12px #0000001a;transform:translateY(-2px)}.send-button{width:44px;height:44px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--primary) 0%,#5a6fd6 100%);color:#fff;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center}.send-button:hover{transform:scale(1.1) rotate(15deg);box-shadow:0 4px 15px #667eea66}.send-button:active{transform:scale(.95)}.login-container{width:100%;max-width:400px;background:#fff;border-radius:20px;box-shadow:0 10px 30px #00000016;padding:40px;text-align:center}.login{display:flex;align-items:center}.nav-sidebar{width:60px;background:var(--background);display:flex;flex-direction:column;align-items:center;padding:15px 0;flex-shrink:0}.nav-logo{width:40px;height:40px;background:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary);margin-bottom:20px;font-size:18px;transition:all .3s ease}.nav-logo:hover{transform:scale(1.1) rotate(5deg);box-shadow:0 4px 12px #667eea4d}.nav-logo-wrapper{position:relative}.profile-popup{position:absolute;left:60px;top:0;background:var(--light);border:1px solid var(--border);border-radius:12px;padding:15px;min-width:200px;box-shadow:0 4px 20px #00000026;z-index:1000}.profile-popup-avatar{width:50px;height:50px;background:linear-gradient(45deg,var(--primary) 0%,var(--secondary) 100%);border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:20px;margin-bottom:10px}.profile-popup-info{margin-bottom:12px}.profile-popup-name{font-weight:700;color:var(--dark);font-size:16px}.profile-popup-username{color:var(--gray);font-size:12px;margin-top:2px}.profile-popup-signature{color:var(--gray);font-style:italic;font-size:12px;margin-top:4px;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-popup-status{color:#4caf50;font-size:12px;margin-top:4px}.profile-popup-actions button{width:100%;padding:8px 12px;background:#667eea;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:13px}.profile-popup-actions button:hover{background:#5a6fd6}.nav-items{display:flex;flex-direction:column;gap:10px;flex:1}.nav-item-wrapper{position:relative;display:flex;align-items:center;justify-content:center;border-radius:12px}.nav-item-wrapper.active:before{content:"";position:absolute;left:-6px;width:4px;height:32px;border-radius:2px;background:#55c7d2}.nav-item-wrapper.active{background:#ffffff80}.nav-item{width:44px;height:44px;border-radius:12px;border:none;background:#ffffff1a;color:#fff;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;position:relative}.nav-item svg{width:22px;height:22px}.nav-badge{position:absolute;top:-4px;right:-4px;background:#ef4444;color:#fff;font-size:10px;font-weight:700;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px}.nav-item:hover{background:#ffffffa6;transform:scale(1.08)}.nav-item.active{background:#fff;color:#667eea;transform:scale(1.05)}.nav-logout{width:44px;height:44px;border-radius:12px;border:none;background:transparent;color:#fff;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center}.nav-logout svg{width:22px;height:22px;transition:transform .2s ease}.nav-logout:hover{background:#fff3;transform:scale(1.15)}.nav-logout:hover svg{transform:scale(1.2)}.drive-panel{flex:1;display:flex;background:#fff;border-radius:20px}.drive-sidebar{min-width:180px;background:var(--background);display:flex;flex-direction:column}.drive-storage{padding:20px;border-bottom:1px solid rgba(255,255,255,.1)}.drive-storage-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.drive-storage-label{font-size:13px;font-weight:500;color:#ffffffe6}.drive-storage-text{font-size:12px;color:#fff9}.drive-storage-bar{height:4px;background:#fff3;border-radius:2px;overflow:hidden}.drive-storage-fill{height:100%;width:16%;background:#4ade80;border-radius:2px}.drive-nav{flex:1;padding:12px;display:flex;flex-direction:column;gap:4px}.drive-nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border:none;background:transparent;color:#fffc;font-size:14px;font-weight:500;border-radius:12px;cursor:pointer;transition:all .2s;text-align:left}.drive-nav-item:hover{background:#ffffff1a;color:#fff}.drive-nav-item.active{background:#fff3;color:#fff}.drive-main{flex:1;display:flex;flex-direction:column;min-width:0}.drive-toolbar{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--border);background:var(--chat)}.drive-toolbar-left{display:flex;align-items:center;gap:12px;width:400px}.drive-back-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;background:var(--light);border-radius:8px;cursor:pointer;transition:all .2s;color:#6b7280}.drive-back-btn:hover{background:var(--dark)}.drive-breadcrumb{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:thin;scrollbar-color:#d1d5db transparent}.drive-breadcrumb::-webkit-scrollbar{height:4px}.drive-breadcrumb::-webkit-scrollbar-track{background:transparent}.drive-breadcrumb::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:2px}.drive-breadcrumb-link{color:#6b7280;cursor:pointer;padding:4px 8px;border-radius:6px;transition:all .2s;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex-shrink:0}.drive-breadcrumb-link:hover{background:#e5e7eb;color:#374151}.drive-breadcrumb-item{display:flex;align-items:center;gap:4px;min-width:0;flex-shrink:0}.drive-breadcrumb-sep{color:#9ca3af;flex-shrink:0}.drive-toolbar-right,.drive-toolbar-center{display:flex;align-items:center;gap:12px}.drive-selected-count{font-size:14px;color:#6b7280;margin-right:8px}.drive-search{position:relative;display:flex;align-items:center}.drive-search-icon{position:absolute;left:12px;color:#9ca3af}.drive-search-input{width:200px;padding:8px 12px 8px 36px;border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none;transition:all .2s;background:var(--light);color:var(--dark)}.drive-search-input:focus{border-color:#6366f1;box-shadow:0 0 0 3px #6366f11a}.drive-btn{display:flex;align-items:center;gap:8px;padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;border:none}.drive-btn-primary{background:var(--primary);color:#fff}.drive-btn-primary:hover{opacity:.9;transform:translateY(-1px)}.drive-btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.drive-view-toggle{display:flex;gap:4px;margin-right:8px}.drive-view-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);background:var(--light);border-radius:6px;cursor:pointer;transition:all .2s ease;color:var(--text-secondary)}.drive-view-btn:hover{background:var(--light-gray);border-color:var(--primary);color:var(--primary)}.drive-view-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.drive-grid-view{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:15px;padding:12px}.drive-grid-item{display:flex;flex-direction:column;align-items:center;padding:16px 8px;border-radius:12px;cursor:pointer;transition:all .2s ease;background:var(--input-bg);position:relative}.drive-grid-item:hover{background:#f1f5f9;transform:translateY(-4px);box-shadow:0 4px 12px #0000001a}[data-theme=dark] .drive-grid-item:hover{background:#374151;box-shadow:0 4px 12px #0000004d}.drive-grid-item.selected{background:var(--primary-light);border:2px solid var(--primary)}.drive-grid-checkbox{position:absolute;top:8px;left:8px;z-index:10}.drive-grid-item-content{display:flex;flex-direction:column;align-items:center;width:100%;cursor:pointer}.drive-grid-item-icon{margin-bottom:8px;color:var(--primary)}.drive-grid-item .drive-item-name{font-size:13px;text-align:center;word-break:break-all;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.drive-grid-item .drive-item-size{font-size:11px;color:var(--text-secondary);margin-top:4px}.drive-btn-outline{background:var(--light);color:var(--dark);border:1px solid var(--border)}.drive-btn-outline:hover{background:var(--light-gray);border-color:var(--border)}.drive-btn-danger{background:#fff;color:#dc2626;border:1px solid #fecaca}.drive-btn-danger:hover{background:#fef2f2;border-color:#fca5a5}.drive-content{flex:1;overflow-y:auto;height:100%;background:var(--chat-header)}.drive-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:#9ca3af}.drive-empty-icon{margin-bottom:16px;opacity:.5}.drive-empty-title{font-size:18px;font-weight:500;color:#6b7280;margin-bottom:8px}.drive-empty-text{font-size:14px}.drive-list{border-radius:12px}.drive-list-header{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);font-size:13px;font-weight:500;color:#6b7280}.drive-list-body{max-height:calc(100vh - 320px);position:relative;-webkit-user-select:none;user-select:none}.drive-selection-box{position:fixed;border:2px solid var(--primary);background:#667eea26;pointer-events:none;z-index:9999}.drive-list-row{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);transition:all .2s ease;cursor:pointer;position:relative;background:var(--input-bg);border-radius:8px;margin:2px 8px}.drive-list-row:hover{background:#f1f5f9;box-shadow:0 2px 8px #0000001a}[data-theme=dark] .drive-list-row:hover{background:#374151;box-shadow:0 2px 8px #0000004d}[data-theme=dark] .drive-panel{background:#111827}[data-theme=dark] .drive-sidebar{background:linear-gradient(180deg,#1e293b,#0f172a)}[data-theme=dark] .drive-main{background:#111827}[data-theme=dark] .drive-toolbar{background:#1f2937;border-bottom-color:#374151}[data-theme=dark] .drive-search-input{background:#374151;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .drive-list-row{border-bottom-color:#374151}[data-theme=dark] .drive-list-col{color:#d1d5db}[data-theme=dark] .drive-item-name{color:#f1f5f9}[data-theme=dark] .drive-item-menu{background:#1f2937;border-color:#374151}[data-theme=dark] .drive-menu-item{color:#d1d5db}[data-theme=dark] .drive-menu-item:hover{background:#374151}[data-theme=dark] .drive-modal{background:#1f2937}[data-theme=dark] .drive-input{background:#374151;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .drive-breadcrumb-link,[data-theme=dark] .drive-breadcrumb-item{color:#9ca3af}[data-theme=dark] .drive-breadcrumb-link:hover{color:#60a5fa}.drive-list-row.selected{background:var(--primary-light)}.drive-list-row:last-child{border-bottom:none}.drive-list-col{font-size:14px;color:#374151}.drive-list-col-check{width:40px;flex-shrink:0}.drive-list-col-name{flex:1;display:flex;align-items:center;gap:12px;min-width:0}.drive-list-col-owner{width:100px;flex-shrink:0;color:#6b7280}.drive-list-col-time{width:120px;flex-shrink:0;color:#6b7280}.drive-list-col-size{width:80px;flex-shrink:0;text-align:right;color:#6b7280}.drive-list-col-action{width:40px;flex-shrink:0;display:flex;justify-content:center}.drive-more-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;background:transparent;border-radius:6px;cursor:pointer;color:#9ca3af;transition:all .15s}.drive-more-btn:hover{background:#e5e7eb;color:#6b7280}.drive-item-menu{position:absolute;right:8px;top:40px;background:var(--light);border-radius:10px;box-shadow:0 4px 20px #00000026;padding:6px;min-width:140px;z-index:1000}.drive-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 14px;border:none;background:transparent;font-size:13px;color:var(--dark);border-radius:8px;cursor:pointer;transition:all .15s;text-align:left}.drive-menu-item:hover{background:var(--primary-light)}.drive-menu-item-danger{color:#dc2626}.drive-menu-item-danger:hover{background:#fef2f2}.drive-checkbox{width:20px;height:20px;border:2px solid var(--border);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s;background:var(--light)}.drive-checkbox:hover{border-color:#6366f1}.drive-checkbox.checked{background:#6366f1;border-color:#6366f1;color:#fff}.drive-item-icon{flex-shrink:0}.drive-item-folder{color:#f59e0b}.drive-item-file{color:#3b82f6}.drive-item-name{font-weight:500;color:var(--dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.drive-item-name:hover{color:var(--primary);text-decoration:underline}.drive-item-shared{font-size:11px;padding:2px 8px;background:#d1fae5;color:#065f46;border-radius:10px;flex-shrink:0}.drive-action-btn{padding:6px 10px;border:none;background:transparent;color:#6b7280;cursor:pointer;border-radius:4px;display:flex;align-items:center;gap:4px}.drive-action-btn:hover{background:#f3f4f6;color:#06c}.drive-status{padding:12px 24px;border-top:1px solid var(--border);background:var(--chat-header);font-size:13px;color:#6b7280}.drive-modal{width:420px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:50}.modal-content{background:var(--light);border-radius:12px;overflow:hidden}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-header h3{font-size:16px;font-weight:600;color:var(--dark);margin:0}.modal-close{background:none;border:none;color:#9ca3af;cursor:pointer;padding:4px;display:flex;border-radius:6px;transition:all .15s}.modal-close:hover{background:#f3f4f6;color:#6b7280}.modal-body{padding:20px}.modal-footer{display:flex;justify-content:flex-end;gap:12px;padding:16px 20px;border-top:1px solid var(--border)}.drive-input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none;transition:all 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p{color:var(--gray);font-size:14px}.settings-item{background:var(--sidebar);padding:20px 24px;border-radius:var(--radius-md);margin-bottom:16px;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:all var(--transition-normal)}.settings-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.settings-item label{display:block;color:var(--gray);font-size:13px;margin-bottom:10px;font-weight:500}.settings-item input,.settings-item select{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;box-sizing:border-box;background:var(--input-bg)}.settings-item input:focus,.settings-item select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4361ee26}.settings-save-btn{width:100%;padding:16px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;margin-top:20px;transition:all 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var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:100;overflow:hidden;animation:slideDown .25s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.group-settings-header{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);color:#fff}.group-settings-header h3{font-size:16px;font-weight:600}.group-settings-header .close-btn{width:32px;height:32px;border-radius:var(--radius-sm);border:none;background:#fff3;color:#fff;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-normal)}.group-settings-header 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button.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.editor-actions button.primary:hover{background:var(--primary-dark)}.announcement-display{background:var(--light);border-radius:8px;padding:12px;word-wrap:break-word}.announcement-display p{font-size:14px;color:var(--dark);line-height:1.5;margin-bottom:10px}.edit-btn{padding:5px 10px;border-radius:6px;border:1px solid var(--primary);background:transparent;color:var(--primary);font-size:12px;cursor:pointer;transition:all .2s}.edit-btn:hover{background:var(--primary);color:#fff}.member-item:hover{background:#f8f9fa}.member-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(45deg,var(--primary),var(--secondary));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;margin-right:12px}.member-name{flex:1;font-size:14px;color:var(--light);font-weight:500}.member-status{font-size:12px}.member-status 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var(--border)}.reply-info{flex:1;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reply-label{color:var(--primary);font-weight:500}.reply-name{color:var(--dark);font-weight:600}.reply-content{color:var(--gray)}.cancel-reply{width:24px;height:24px;border-radius:50%;border:none;background:#e9ecef;cursor:pointer;display:flex;align-items:center;justify-content:center}.cancel-reply:hover{background:#dee2e6}.mention-list{position:absolute;bottom:60px;background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:0 2px 10px #0000001a;max-height:200px;overflow-y:auto;z-index:100}.mention-item{padding:10px 15px;cursor:pointer}.mention-item:last-child{border-bottom:none}.mention-item:hover{background:var(--light-gray)}.cancel-reply:hover{background:#e9ecef;color:var(--dark)}.attachment-preview{display:flex;flex-wrap:wrap;gap:10px;padding:5px 0;background:var(--light);border-bottom:1px solid var(--border)}.attachment-item{position:relative;border-radius:8px;overflow:hidden;background:var(--input-bg)}.attachment-image-preview{width:80px;height:80px;object-fit:cover;border-radius:8px;border:1px solid var(--border)}.attachment-file-preview{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#fff;border:1px solid var(--border);border-radius:8px;min-width:150px}.attachment-file-preview .file-icon{font-size:24px}.attachment-file-preview .file-info{display:flex;flex-direction:column}.attachment-file-preview .file-name{font-size:13px;color:var(--dark);max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-file-preview .file-size{font-size:11px;color:var(--gray)}.remove-attachment{position:absolute;top:-5px;right:-5px;width:20px;height:20px;border-radius:50%;background:#ef4444;color:#fff;border:none;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center}.input-action-wrapper{position:relative}.emoji-picker{position:absolute;bottom:100%;left:0;width:300px;max-height:250px;background:var(--light);border-radius:12px;box-shadow:0 4px 20px #00000026;padding:10px;margin-bottom:10px;z-index:1000;overflow-y:auto}.emoji-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:4px}.emoji-btn{width:32px;height:32px;border:none;background:transparent;cursor:pointer;font-size:20px;border-radius:6px;transition:all .2s}.emoji-btn:hover{background:#e9ecef;transform:scale(1.2)}[data-theme=dark] .emoji-picker{background:#1e293b;border-color:#374151}[data-theme=dark] .emoji-btn:hover{background:#374151}[data-theme=dark] .emoji-grid{background:#1e293b}.message-bubble{position:relative;padding:10px 14px;border-top-left-radius:var(--radius-md);border-top-right-radius:var(--radius-md);transition:transform var(--transition-fast),box-shadow .2s ease}.message-row.received .message-bubble{background-color:var(--chat-recv-bubble);border-bottom-right-radius:var(--radius-md);border:1px solid var(--border)}.message-row.sent .message-bubble{border-bottom-left-radius:var(--radius-md);background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}.message-row.sent .message-bubble:hover{transform:translateY(-1px);box-shadow:0 3px 10px #667eea4d}.message-row.received .message-bubble:hover{transform:translateY(-1px);box-shadow:0 3px 10px #0000001a}.message-hover-menu{position:absolute;top:-28px;display:flex;gap:4px;background:var(--light);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);padding:4px;z-index:100;animation:fadeIn var(--transition-fast);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2}.message.received .message-hover-menu{left:0}.message.sent .message-hover-menu{right:0}.message-hover-menu button{width:28px;height:28px;border:none;color:var(--dark);background:transparent;cursor:pointer;border-radius:6px;font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .2s}.message-hover-menu button:hover{background:#e9ecef}[data-theme=dark] .message-hover-menu{background:#1e293bf2}[data-theme=dark] .message-hover-menu button:hover{background:#374151}.message-checkbox{position:absolute;left:-30px;top:50%;transform:translateY(-50%);width:24px;height:24px;border:2px solid var(--border);border-radius:4px;background:var(--sidebar);color:var(--text-secondary);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;transition:all .2s}.message-checkbox.checked{background:var(--primary);border-color:var(--primary);color:#fff}.message-checkbox:hover{border-color:var(--primary)}.message.received .message-checkbox{left:-30px}.message.sent .message-checkbox{right:-30px;left:auto}.message-attachments{margin-bottom:8px}.message-attachment{margin-bottom:4px}.message-image-wrapper{position:relative;display:inline-block}.message-image{max-width:200px;max-height:150px;border-radius:8px;cursor:pointer;transition:all .2s}.message-image:hover{opacity:.9;transform:scale(1.02)}.encrypted-image-placeholder{width:200px;height:150px;background:var(--light);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}.encrypted-image-placeholder.decrypt-failed{background:#fee2e2}.encrypted-icon{font-size:32px}.encrypted-label{font-size:12px;color:#666}.decrypt-failed .encrypted-label{color:#dc2626}.message-file.uploading{pointer-events:none;opacity:.7}.message-file .file-upload-progress{display:flex;align-items:center;gap:8px;margin-top:4px}.message-file .file-progress-bar{flex:1;height:4px;background:#e0e0e0;border-radius:2px;overflow:hidden;width:100px}.message-file .file-progress-fill{height:100%;background:#4caf50;transition:width .2s}.message-file .file-progress-text{font-size:11px;color:var(--gray);min-width:40px}.upload-progress-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;border-radius:8px}.upload-progress-text{color:#fff;font-size:14px;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.3)}.message-file{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--light);border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:all .2s;min-width:180px}.message-file:hover{background:var(--light-gray);border-color:var(--primary)}.message-file .file-icon{font-size:30px;color:#4a90e2}.message-file .file-details{display:flex;flex-direction:column}.message-file .file-name{font-size:13px;color:var(--dark);max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-file .file-size{font-size:11px;color:var(--gray)}.image-preview-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000e6;z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;animation:fadeIn .2s ease}.image-preview-header{position:absolute;top:20px;right:20px;display:flex;gap:10px;z-index:10000}.preview-close{width:40px;height:40px;border-radius:50%;background:#fff3;color:#fff;border:none;font-size:24px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.preview-close:hover{background:#ffffff4d}.preview-save{padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:14px;cursor:pointer;transition:all .2s}.preview-save:hover{background:var(--primary-dark)}.preview-burn{padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:14px;cursor:pointer;transition:all .2s}.preview-burn:hover{background:var(--primary-dark)}.image-preview-img{max-width:90%;max-height:85%;object-fit:contain;border-radius:8px;cursor:grab;transition:transform .1s ease}.image-preview-img:active{cursor:grabbing}.image-preview-container{display:flex;align-items:center;justify-content:center;width:100%;height:100%;overflow:hidden}.image-preview-hint{position:absolute;bottom:30px;left:50%;transform:translate(-50%);color:#fff9;font-size:13px;pointer-events:none}.message-reply{padding:6px 10px;background:var(--light);border-left:3px solid var(--primary);border-radius:6px;margin-bottom:8px;font-size:13px;cursor:pointer;overflow-x:clip}.message-reply .reply-header{color:var(--reply);line-height:1.4}.message.received .message-reply{background:#00000008}.message.sent .message-reply{background:#ffffff26}.message-reply .reply-name{font-weight:600;color:var(--primary)}.message.sent .message-reply .reply-name{color:#ffffffe6}.message-reply .reply-content{color:var(--gray);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:150px;display:inline-block}.message.sent .message-reply .reply-content{color:#ffffffb3}.recalled-message{padding:10px 14px;color:var(--gray);font-size:13px;font-style:italic}.recalled-text{color:var(--gray)}.message-row.recalled .message-bubble{background:transparent!important;box-shadow:none}.message-row.recalled{opacity:.7;justify-content:center!important}.message-row.recalled .message-bubble-wrapper{max-width:100%}.recalled-message{text-align:center;padding:8px 16px;color:var(--gray);font-size:12px;font-style:italic;background:#f0f0f0;border-radius:12px}.message-status .status-sending{color:#999;font-size:12px}.message-status 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0;width:320px;height:50px;flex-direction:row;gap:8px;justify-content:flex-start;padding-left:12px;cursor:default}.progress-close{position:absolute;top:-6px;right:-6px;width:18px;height:18px;border-radius:50%;background:#f44;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:12px;line-height:1;opacity:0;transition:opacity .2s;z-index:1}.progress-float:hover .progress-close{opacity:1}.progress-close:hover{background:#f66}.progress-icon{display:flex;align-items:center;margin-top:2px}.progress-count{font-size:12px;font-weight:600;margin-top:2px}.progress-mini-bar{width:30px;height:4px;background:#ffffff4d;border-radius:2px;overflow:hidden}.progress-float-list{background:#fff;border-radius:12px 12px 0 0;box-shadow:0 -4px 12px #00000026;max-height:300px;overflow-y:auto;width:280px;position:absolute;bottom:60px;right:0}.progress-float-header{width:60px;height:60px;border-radius:50%;background:var(--primary);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:grab;box-shadow:0 4px 12px #4361ee66;transition:all .3s;position:absolute;bottom:0;right:0}.progress-float-header:hover{transform:scale(1.05)}.progress-float.expanded{transition:none}.progress-float-content{position:absolute;bottom:0;right:0}.progress-icon{display:flex;align-items:center}.progress-item-icon{display:flex;align-items:center;font-size:14px}.animate-spin{animation:spin 1s linear infinite}.progress-count{font-size:14px;font-weight:600;margin-top:2px}.progress-float.expanded .progress-count{margin-top:0}.progress-mini-bar{width:30px;height:4px;background:#ffffff4d;border-radius:2px;overflow:hidden;margin-top:4px}.progress-float.expanded .progress-mini-bar{display:none}.progress-mini-fill{height:100%;background:#fff;transition:width .3s}.progress-float-list{background:#fff;border-radius:0 0 12px 12px;box-shadow:0 4px 12px #00000026;max-height:300px;overflow-y:auto;width:320px}.progress-float-footer{display:flex;gap:8px;padding:8px 12px;background:#fff;border-radius:0 0 12px 12px;box-shadow:0 4px 12px #00000026}.progress-collapse-btn,.progress-close-btn{flex:1;padding:8px 12px;border:none;border-radius:6px;cursor:pointer;font-size:13px;transition:all .2s}.progress-collapse-btn{background:#f0f0f0;color:#333}.progress-collapse-btn:hover{background:#e0e0e0}.progress-close-btn{background:#f44;color:#fff}.progress-close-btn:hover{background:#f66}.progress-item{padding:10px 12px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:6px}.progress-item-info{display:flex;align-items:center;gap:8px}.progress-item-name{flex:1;font-size:13px;color:var(--dark);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.progress-bar{height:6px;background:#e9ecef;border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);transition:width .3s}.progress-fill.downloading{background:#28a745}.progress-percent,.progress-size,.progress-speed{font-size:11px;color:var(--gray);text-align:right}.progress-status{font-size:12px}.progress-status.done{color:var(--online)}.progress-status.error{color:#ef4444}.progress-status.cancelled{color:#f59e0b}.progress-remove{position:absolute;right:8px;top:8px;width:20px;height:20px;border-radius:50%;border:none;background:#f0f0f0;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center}.progress-item{position:relative;padding:10px 12px;border-bottom:1px solid var(--border)}.progress-item:last-child{border-bottom:none}.progress-details{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--gray)}[data-theme=dark] .progress-float{background:#1e293b;box-shadow:0 4px 20px #00000080}[data-theme=dark] .progress-float.expanded{background:#1e293b}[data-theme=dark] .progress-float-header{background:#0f172a}[data-theme=dark] .progress-item{background:#1e293b;border-bottom-color:#374151}[data-theme=dark] .progress-item-info,[data-theme=dark] .progress-item-name{color:#f1f5f9}[data-theme=dark] .progress-icon{color:#60a5fa}[data-theme=dark] .progress-details,[data-theme=dark] .progress-percent,[data-theme=dark] .progress-size,[data-theme=dark] .progress-speed{color:#9ca3af}[data-theme=dark] .progress-bar{background:#374151}[data-theme=dark] .progress-close{color:#9ca3af}[data-theme=dark] .progress-close:hover{background:#374151;color:#f1f5f9}[data-theme=dark] .progress-remove{background:#374151;color:#9ca3af}[data-theme=dark] .progress-remove:hover{background:var(--danger);color:#fff}.admin-login{width:100%;height:100vh;display:flex;justify-content:center;align-items:center;background:transparent;position:relative;z-index:1}.admin-login-box{background:var(--light);padding:40px;border-radius:12px;box-shadow:0 10px 40px #0000001a;width:400px}.admin-login-box h2{text-align:center;margin-bottom:30px;color:var(--dark)}.admin-login-box .form-group{margin-bottom:20px}.admin-login-box .form-group label{display:block;margin-bottom:8px;color:#555;font-weight:500}.admin-login-box .form-group input{width:100%;padding:12px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:var(--light);color:var(--dark)}.admin-login-box .btn-primary{width:100%;padding:12px;background:var(--primary);color:#fff;border:none;border-radius:6px;font-size:16px;cursor:pointer}.admin-login-box .btn-primary:hover{background:var(--primary-dark)}.admin-login-box .btn-primary:disabled{background:#ccc;cursor:not-allowed}.admin-login-box .error-message{color:#ef4444;margin-bottom:15px;font-size:14px}.admin-login-box .back-link{text-align:center;margin-top:20px}.admin-login-box .back-link a{color:var(--primary);text-decoration:none}.admin-login-box .back-btn{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--hover);color:var(--dark);border:1px solid var(--border);border-radius:8px;cursor:pointer;font-size:14px;margin-bottom:15px;transition:all .2s}.admin-login-box .back-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}[data-theme=dark] .admin-login-box{background:var(--float-panel)}[data-theme=dark] .admin-login-box h2{color:#f1f5f9}[data-theme=dark] .admin-login-box .form-group label{color:#d1d5db}[data-theme=dark] .admin-login-box .form-group input{background:#1f2937;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .admin-login-box .back-btn{background:#374151;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .admin-login-box .back-link a{color:#60a5fa}.admin-panel{flex:1;display:flex;flex-direction:column;background:var(--light);height:100%;max-height:100vh}.admin-container{display:flex;flex:1;overflow:hidden;height:0}.admin-header{padding:20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}h3{color:var(--dark)}.admin-header h1{font-size:20px;color:var(--dark)}.admin-header .btn-logout{padding:8px 16px;background:var(--hover);color:var(--dark);border:1px solid var(--border);border-radius:6px;cursor:pointer}.admin-header .btn-logout:hover{background:var(--primary);color:#fff;border-color:var(--primary)}.admin-badge{padding:4px 12px;background:var(--hover);border-radius:12px;margin-left:15px;color:var(--primary);font-weight:500}.admin-item-list{overflow-y:auto;position:relative}.admin-tabs{background:var(--light);padding:15px 10px;display:flex;flex-direction:column;gap:5px;width:180px;border-right:1px solid var(--border);flex-shrink:0}.admin-tabs button{padding:12px 15px;background:none;border:none;border-radius:8px;cursor:pointer;font-size:14px;color:var(--dark);text-align:left;transition:all .2s;display:flex;align-items:center;gap:10px}.admin-tabs button:hover{background:var(--hover);color:var(--primary)}.admin-tabs button.active{color:var(--primary);background:var(--primary-light);font-weight:600}.admin-content{flex:1;padding:20px;background:var(--light);overflow-y:auto;min-height:0;position:relative}.admin-toolbar{display:flex;gap:15px;margin-bottom:20px;flex-wrap:wrap}.admin-toolbar .search-input{flex:1;max-width:300px;padding:10px 15px;border:1px solid var(--border);border-radius:8px;background:var(--light);color:var(--dark)}.btn-danger{padding:10px 20px;background:linear-gradient(135deg,var(--danger) 0%,#d32f2f 100%);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;transition:all var(--transition-normal);box-shadow:var(--shadow-sm)}.btn-danger:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.admin-toolbar .btn-danger{padding:10px 20px;background:linear-gradient(135deg,var(--danger) 0%,#d32f2f 100%);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;transition:all var(--transition-normal);box-shadow:var(--shadow-sm)}.admin-toolbar .btn-danger:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-add{padding:10px 20px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;transition:all var(--transition-normal);box-shadow:var(--shadow-sm)}.btn-add:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-refresh{padding:10px 20px;background:linear-gradient(135deg,var(--success) 0%,#0891b2 100%);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}.btn-refresh:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-warning{padding:10px 20px;background:linear-gradient(135deg,var(--muted) 0%,#ea580c 100%);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}.btn-warning:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.admin-table{width:100%;background:var(--sidebar);border-radius:var(--radius-lg);border-collapse:collapse;overflow:hidden;box-shadow:var(--shadow-md)}.admin-table th,.admin-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border)}.admin-table td{position:relative}.admin-table th{background:var(--sidebar);font-weight:600;color:var(--dark);font-size:12px;text-transform:uppercase;letter-spacing:.5px}.admin-table td button{padding:6px 12px;margin-right:5px;background:var(--light-gray);border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:13px;transition:all var(--transition-normal)}.admin-table td button:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}.admin-table td .btn-danger{background:linear-gradient(135deg,#fee2e2,#fecaca);color:var(--danger)}.admin-table td .btn-danger:hover{background:var(--danger);color:var(--dark)}.admin-table tbody tr:hover{background:var(--hover)}.admin-table input[type=checkbox],.admin-panel input[type=checkbox]{width:22px;height:22px;min-width:18px;border-radius:50%;-moz-appearance:none;appearance:none;-webkit-appearance:none;cursor:pointer;border:2px solid var(--border);background:#fff;position:relative;transition:all .2s;vertical-align:middle}.admin-table input[type=checkbox]:checked,.admin-panel input[type=checkbox]:checked{background:var(--primary);border-color:var(--primary)}.admin-table input[type=checkbox]:checked:after,.admin-panel input[type=checkbox]:checked:after{content:"";position:absolute;top:50%;left:50%;width:6px;height:10px;border:solid white;border-width:0 2px 2px 0;transform:translate(-50%,-60%) rotate(45deg)}.admin-table input[type=checkbox]:hover,.admin-panel input[type=checkbox]:hover{border-color:var(--primary)}.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:20px;padding:15px;background:var(--light);border-radius:12px}.pagination button{padding:6px 12px;border:1px solid #ddd;background:#fff;border-radius:4px;cursor:pointer;font-size:13px}.pagination button:hover:not(:disabled){background:#f0f0f0}.pagination button:disabled{opacity:.5;cursor:not-allowed}.pagination span{padding:0 15px;font-size:14px;color:#666}.status-badge{padding:4px 12px;border-radius:var(--radius-full);font-size:11px;font-weight:600;letter-spacing:.3px}.status-badge.status-online{background:linear-gradient(135deg,var(--success-light) 0%,#a7f3d0 100%);color:#065f46}.status-user{background:linear-gradient(135deg,var(--primary-light) 0%,#bfdbfe 100%);border-radius:var(--radius-full);padding:4px 12px;color:#1e40af;font-weight:600}.status-admin{background:linear-gradient(135deg,#fecaca,#fca5a5);border-radius:var(--radius-full);padding:4px 12px;color:#991b1b;font-weight:600}.status-vip{background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:var(--radius-full);padding:4px 12px;color:#92400e;font-weight:600}.status-badge.status-away{background:linear-gradient(135deg,var(--warning-light) 0%,#fef08a 100%);color:#78350f}.status-badge.status-muted{background:linear-gradient(135deg,#fed7aa,#fdba74);color:#9a3412;font-weight:600}.status-badge.status-banned{background:linear-gradient(135deg,var(--danger-light) 0%,#fecaca 100%);color:#991b1b;font-weight:600}.status-badge.status-offline{background:var(--light-gray);color:var(--gray)}[data-theme=dark] .status-badge.status-online{background:linear-gradient(135deg,#065f46,#047857);color:#d1fae5}[data-theme=dark] .status-badge.status-offline{background:var(--light-gray);color:var(--gray)}[data-theme=dark] .status-badge.status-muted{background:linear-gradient(135deg,#9a3412,#c2410c);color:#ffedd5}[data-theme=dark] .status-badge.status-banned{background:linear-gradient(135deg,#991b1b,#dc2626);color:#fee2e2}.stats-section{padding:10px}.stats-section h3{font-size:18px;font-weight:600;color:var(--dark);margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid var(--primary)}.stats-grid{display:grid;grid-template-columns:repeat(3,3fr);gap:20px}.stat-card{background:var(--input-bg);padding:15px;border-radius:10px;box-shadow:0 2px 8px #0000001a}.stat-card.highlight{background:var(--primary);color:#fff}.stat-label{font-size:14px;color:var(--dark);margin-bottom:10px}.stat-card.highlight .stat-label{color:#fffc}.stat-value{font-size:28px;font-weight:600}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal{background:#fff;padding:25px;border-radius:10px;width:450px;max-height:80vh;overflow:auto}.modal-large{width:700px}.modal h3{margin-bottom:20px;color:#333}.modal .form-group{margin-bottom:15px}.modal .form-group label{display:block;margin-bottom:5px;color:#555;font-weight:500}.modal .form-group input,.modal .form-group textarea,.modal .form-group select{width:100%;padding:10px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:var(--light);color:var(--dark)}.modal .form-group textarea{min-height:80px;resize:vertical}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.modal-actions button{padding:10px 20px;border:none;border-radius:6px;cursor:pointer}.modal-actions button:first-child{background:#e9ecef;color:#333}.modal-actions .btn-primary{background:var(--primary);color:#fff}.btn-primary{background:var(--primary);color:var(--dark)}.btn-primary:hover{background:var(--primary-dark);color:var(--dark)}.filter-bar{margin-bottom:16px;display:flex;gap:10px}.filter-bar select,option{padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:var(--light);color:var(--dark)}.checkbox-list{max-height:300px;overflow-y:auto;border:1px solid #ddd;border-radius:6px;padding:10px}.checkbox-item{display:flex;align-items:center;gap:8px;padding:8px;cursor:pointer;border-bottom:1px solid #eee}.checkbox-item:last-child{border-bottom:none}.checkbox-item input[type=checkbox]{width:16px;height:16px}.messages-list{max-height:400px;overflow-y:auto}.message-item{padding:15px;border-bottom:1px solid #eee;display:flex;flex-direction:column;gap:8px}.message-info{display:flex;gap:15px;font-size:12px;color:#888}.message-content{color:var(--chat-text);word-wrap:break-word;white-space:pre-wrap;font-size:var(--chat-font-size, 16px)}.message-content .mention-text{color:#1a73e8;font-weight:500;background:#1a73e81a;padding:1px 4px;border-radius:3px}.message-content.decrypt-error{color:#dc2626;padding:8px 12px;background:#fee2e2;border-radius:8px;max-width:200px}[data-theme=dark] .message-content .mention-text{color:#8ab4f8;background:#8ab4f826}.message-item .btn-small{align-self:flex-start;padding:4px 8px;font-size:11px;margin-top:5px}.no-data{text-align:center;padding:40px;color:#999}.login-footer .admin-link{margin-top:15px}.login-footer .admin-link a{color:var(--primary);text-decoration:none;font-size:14px}.login-footer .admin-link a:hover{text-decoration:underline}.members-admin-list{max-height:300px;overflow-y:auto;border:1px solid #ddd;border-radius:6px}.members-list{max-height:260px;overflow-y:auto}.owners-list{margin-bottom:15px}.owner-item{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;background:#f8f9fa;border-radius:6px;margin-bottom:8px}.member-admin-item{display:flex;justify-content:space-between;align-items:center;padding:12px 15px;border-bottom:1px solid #eee}.member-admin-item:last-child{border-bottom:none}.member-info{display:flex;align-items:center;gap:8px}.member-name{font-weight:500;color:var(--dark)}.member-username{color:#888;font-size:13px}.owner-badge{background:#fef9c3;color:#854d0e;padding:2px 8px;border-radius:4px;font-size:12px;margin-left:8px}.member-remove-btn{padding:6px 12px;margin-right:5px;border:none;border-radius:4px;cursor:pointer;font-size:12px;background:#fee2e2;color:#dc2626}.user-panel{background:var(--light);border-radius:12px;width:320px;max-width:90vw;box-shadow:0 10px 40px #0003;overflow:hidden}.user-panel-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:20px;display:flex;justify-content:space-between;align-items:center}.user-panel-header h3{margin:0;font-size:18px}.user-panel-header .close-btn{background:none;border:none;color:#fff;font-size:24px;cursor:pointer;padding:0;line-height:1}.user-panel-content{padding:30px;text-align:center}.user-panel-avatar{width:100px;height:100px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:40px;font-weight:700;margin:0 auto 20px;box-shadow:0 4px 15px #667eea66}.user-panel-info{text-align:left;margin-top:15px;padding:10px;background:var(--input-bg);border-radius:8px}.user-panel-item{display:flex;padding:12px 0;border-bottom:1px solid var(--border)}.user-panel-item:last-child{border-bottom:none}.user-panel-item .label{color:#666;width:70px;flex-shrink:0}.user-panel-item .value.status-online{color:var(--online);background:none}.scroll-to-bottom-btn{position:fixed;bottom:var(--scroll-btn-bottom, 200px);left:var(--scroll-btn-left, 50%);right:auto;width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #00000026;transition:box-shadow .2s ease,background .2s ease;z-index:100;animation:fadeIn .2s ease}.scroll-to-bottom-btn:hover{box-shadow:0 4px 16px #3b82f666;background:var(--primary-dark, #2563eb)}.scroll-to-bottom-btn:active{opacity:.8}.scroll-to-bottom-btn svg{width:20px;height:20px}.user-panel-avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}.user-panel-edit{text-align:center}.user-panel-avatar-edit{width:100px;height:100px;border-radius:50%;margin:0 auto 20px;position:relative;overflow:hidden;background:linear-gradient(45deg,var(--primary) 0%,var(--secondary) 100%)}.user-panel-avatar-edit 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var(--border);display:flex;flex-direction:column}.stats-card-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;flex-shrink:0}.stats-summary{display:flex;gap:32px;margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border);flex-shrink:0}.stats-total,.stats-avg,.stats-peak{display:flex;flex-direction:column;gap:4px}.stats-chart-container{flex:1;min-height:200px;cursor:pointer;position:relative}.user-hover-card{background:#fff;color:#212529;border:1px solid #dee2e6}[data-theme=dark] .user-hover-card{background:#1f2937;color:#f3f4f6;border:1px solid #374151}.stats-card-header{display:flex;align-items:center;gap:10px;margin-bottom:20px}.stats-card-header svg{color:var(--primary)}.stats-card-header h3{font-size:16px;font-weight:600;color:var(--dark);margin:0}.stats-summary{display:flex;gap:32px;margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--border)}.stats-total,.stats-avg{display:flex;flex-direction:column;gap:4px}.stats-value{font-size:28px;font-weight:700;color:var(--dark)}.stats-label{font-size:12px;color:var(--text-secondary)}.stats-chart-wrapper{height:160px;margin-bottom:12px}.stats-dates{display:flex;justify-content:space-between;font-size:11px;color:var(--text-secondary)}.stats-empty{display:flex;align-items:center;justify-content:center;height:200px;color:var(--text-secondary)}.stats-tooltip{position:fixed;background:var(--dark);color:#fff;padding:8px 12px;border-radius:8px;font-size:12px;z-index:1000;pointer-events:none;box-shadow:0 4px 12px #0003}.stats-tooltip .tooltip-date{font-weight:600;margin-bottom:2px}.stats-tooltip .tooltip-count strong{color:#10b981}.stats-user-name{font-size:16px;font-weight:400;color:var(--text-secondary)}.stats-role-badge.admin{background:linear-gradient(135deg,#667eea,#764ba2)}.stats-role-badge.user{background:linear-gradient(135deg,#10b981,#059669)}.stats-peak{display:flex;flex-direction:column;gap:4px}.stats-vertical{display:flex;flex-direction:column;gap:24px;flex:1;overflow-y:auto;min-height:0}.stats-chart-container{width:100%;height:180px;cursor:pointer}.stats-svg{width:100%;height:100%}.logout-loading{position:absolute;top:0;left:0;width:100%;height:100%;background:#ffffffe6;display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:9999;gap:12px}.logout-loading span{color:#666;font-size:14px}.logout-loading-spinner{width:32px;height:32px;border:3px solid #e5e7eb;border-top-color:#3b82f6;border-radius:50%;animation:logout-spin .8s linear infinite}@keyframes logout-spin{to{transform:rotate(360deg)}}[data-theme=dark] .logout-loading{background:#0f172af2}[data-theme=dark] .logout-loading span{color:#9ca3af}[data-theme=dark] .logout-loading-spinner{border-color:#374151;border-top-color:#60a5fa}[data-theme=dark] .stats-panel{background:#111827}[data-theme=dark] .stats-header h2{color:#f1f5f9}[data-theme=dark] .stats-header select{background:#1f2937;border-color:#4b5563;color:#f1f5f9}[data-theme=dark] .stats-card{background:#1f2937}[data-theme=dark] .stats-card-header h3{color:#f1f5f9}[data-theme=dark] .stats-value{color:#60a5fa}[data-theme=dark] .stats-label,[data-theme=dark] .stats-loading{color:#9ca3af}[data-theme=dark] .stats-error{color:#f87171}.settings-input-with-action{display:flex;gap:8px;align-items:center}.settings-input-with-action input{flex:1}.settings-btn-copy{padding:10px 12px;background:var(--hover-bg);border:1px solid var(--border);border-radius:8px;cursor:pointer;color:var(--gray);transition:all .2s;display:flex;align-items:center;justify-content:center}.settings-btn-copy:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary)}.settings-password-input{position:relative;display:flex;align-items:center}.settings-password-input input{flex:1;padding-right:40px}.password-toggle{position:absolute;right:10px;background:none;border:none;cursor:pointer;color:var(--gray);padding:4px;display:flex;align-items:center;justify-content:center}.password-toggle:hover{color:var(--dark)}.delete-warning{background:#fef2f2;border:1px solid #fecaca;border-radius:10px;padding:16px;margin-bottom:20px}.delete-warning p{color:#dc2626;font-weight:600;margin:0 0 12px}.delete-warning ul{margin:0;padding-left:20px;color:#991b1b;font-size:14px}.delete-warning li{margin-bottom:6px}.danger-hint{color:var(--gray);font-size:13px;margin-top:12px;text-align:center}.settings-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.settings-menu-item-logout{border-color:var(--primary)!important}.settings-menu-item-logout svg:first-child{color:var(--primary)}.settings-menu-item-logout:hover{background:var(--primary-light)!important}.settings-modal{background:var(--light);border-radius:16px;width:90%;max-width:420px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0003;animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.settings-modal h3{display:flex;align-items:center;gap:10px;padding:20px 24px;border-bottom:1px solid var(--border);font-size:18px;font-weight:600;color:var(--dark);margin:0}.settings-modal-danger h3{color:#dc2626}.settings-modal-content{padding:24px}.settings-modal-actions{display:flex;gap:12px;padding:16px 24px;border-top:1px solid var(--border);background:var(--hover-bg);border-radius:0 0 16px 16px}.settings-modal-actions .settings-btn-secondary,.settings-modal-actions .settings-btn-primary,.settings-modal-actions .settings-btn-danger-full{flex:1}.settings-panel-new{display:flex;width:100%;height:100%;background:var(--light);overflow:hidden}.settings-sidebar{width:260px;min-width:260px;background:var(--sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;height:100%}.settings-main{flex:1;overflow-y:auto;background:var(--light);min-width:0}.settings-tab-content{padding:32px 40px;max-width:640px;margin:0 auto}@media (max-width: 768px){.settings-tab-content{padding:24px 20px}}.settings-panel-new{display:flex;height:100%;background:var(--light)}.settings-sidebar{width:260px;background:var(--sidebar);border-right:1px solid 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var(--border)}.settings-user-card{display:flex;align-items:center;gap:12px;padding:12px;background:var(--hover-bg);border-radius:10px}.settings-user-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;overflow:hidden;flex-shrink:0}.settings-user-avatar img{width:100%;height:100%;object-fit:cover}.settings-user-info{display:flex;flex-direction:column;min-width:0}.settings-user-name{font-size:14px;font-weight:500;color:var(--dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.settings-user-status{font-size:12px;color:var(--online)}.settings-main{flex:1;overflow-y:auto;background:var(--light)}.settings-tab-content{max-width:640px;margin:0 auto;padding:32px 40px}.settings-tab-content h3{font-size:24px;font-weight:600;color:var(--dark);margin:0 0 8px}.settings-tab-desc{color:var(--gray);font-size:14px;margin:0 0 32px}.settings-avatar-section{display:flex;align-items:center;gap:24px;margin-bottom:32px;padding:24px;background:var(--hover-bg);border-radius:16px}.settings-avatar-large{width:96px;height:96px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;font-size:36px;font-weight:600;color:#fff;overflow:hidden;position:relative;flex-shrink:0}.settings-avatar-large:hover{z-index:0;box-shadow:var(--shadow-md),0 0 20px #0003}.settings-avatar-large img{width:100%;height:100%;object-fit:cover;z-index:1}.avatar-upload-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transition:opacity .2s;border-radius:50%;color:#fff;z-index:2}.settings-avatar-large:hover .avatar-upload-overlay{opacity:1}.settings-avatar-actions{display:flex;flex-direction:column;gap:12px}.settings-form{display:flex;flex-direction:column;gap:20px}.settings-form-group{display:flex;flex-direction:column;gap:8px}.settings-form-group label{font-size:14px;font-weight:500;color:var(--dark)}.settings-form-group input,.settings-form-group textarea{padding:12px 16px;border:1px solid var(--border);border-radius:10px;font-size:15px;background:var(--light);color:var(--dark);transition:border-color .2s}.settings-form-group input:focus,.settings-form-group textarea:focus{outline:none;border-color:var(--primary)}.settings-form-group input:disabled{background:var(--hover-bg);color:var(--gray);cursor:not-allowed}.settings-form-group textarea{resize:vertical;min-height:80px}.settings-actions{display:flex;gap:12px;margin-top:24px}.settings-btn-primary{flex:1;padding:12px 24px;background:var(--primary);color:#fff;border:none;border-radius:10px;font-size:15px;font-weight:500;cursor:pointer;transition:background .2s}.settings-btn-primary:hover{background:var(--primary-dark)}.settings-btn-primary:disabled{background:var(--gray);cursor:not-allowed}.settings-btn-secondary{padding:12px 24px;background:var(--hover-bg);color:var(--dark);border:1px solid var(--border);border-radius:10px;font-size:15px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:8px}.settings-btn-secondary:hover{background:var(--border)}.settings-btn-danger{padding:10px 16px;background:#fef2f2;color:#dc2626;border:1px solid #fecaca;border-radius:8px;font-size:14px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px}.settings-btn-danger:hover{background:#fee2e2}.settings-btn-danger-full{width:100%;padding:14px 24px;background:#fef2f2;color:#dc2626;border:1px solid #fecaca;border-radius:10px;font-size:15px;font-weight:500;cursor:pointer;transition:all .2s}.settings-btn-danger-full:hover{background:#fee2e2}.settings-section{margin-bottom:32px}.settings-section h4{font-size:16px;font-weight:600;color:var(--dark);margin:0 0 16px}.settings-menu-list{display:flex;flex-direction:column;gap:8px}.settings-menu-item{display:flex;align-items:center;gap:16px;padding:16px;background:var(--light);border:1px solid var(--border);border-radius:12px;cursor:pointer;transition:all .2s;text-align:left;width:100%}.settings-menu-item:hover{background:var(--hover-bg);border-color:var(--primary)}.settings-menu-item svg:first-child{color:var(--primary);flex-shrink:0}.settings-menu-item-content{flex:1;display:flex;flex-direction:column;gap:4px;min-width:0}.settings-menu-item-title{font-size:15px;font-weight:500;color:var(--dark)}.settings-menu-item-desc{font-size:13px;color:var(--gray)}.settings-menu-item>svg:last-child{color:var(--gray);flex-shrink:0}.settings-toggle-list{display:flex;flex-direction:column;gap:0;background:var(--light);border:1px solid var(--border);border-radius:12px;overflow:hidden}.settings-toggle-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.settings-toggle-item:last-child{border-bottom:none}.settings-toggle-content{display:flex;flex-direction:column;gap:4px}.settings-toggle-title{font-size:15px;font-weight:500;color:var(--dark)}.settings-toggle-desc{font-size:13px;color:var(--gray)}.settings-switch{position:relative;display:inline-block;width:48px;height:28px;flex-shrink:0}.settings-switch input{opacity:0;width:0;height:0}.settings-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:#d1d5db;transition:.3s;border-radius:28px}.settings-slider:before{position:absolute;content:"";height:22px;width:22px;left:3px;bottom:3px;background-color:#fff;transition:.3s;border-radius:50%;box-shadow:0 2px 4px #0003}.settings-switch input:checked+.settings-slider{background-color:var(--primary)}.settings-switch input:checked+.settings-slider:before{transform:translate(20px)}.theme-options{display:flex;gap:16px}.theme-option{flex:1;display:flex;flex-direction:column;align-items:center;gap:12px;padding:20px;background:var(--light);border:2px solid var(--border);border-radius:16px;cursor:pointer;transition:all .2s;position:relative}.theme-option:hover{border-color:var(--primary)}.theme-option.active{border-color:var(--primary);background:var(--primary-light)}.theme-preview{width:80px;height:56px;border-radius:10px;display:flex;align-items:center;justify-content:center}.theme-preview.light{background:linear-gradient(135deg,#fff,#f3f4f6);color:#fbbf24}.theme-preview.dark{background:linear-gradient(135deg,#1f2937,#111827);color:#6b7280}.theme-preview.system{background:linear-gradient(135deg,#fff 50%,#1f2937 50%);color:#6b7280}.theme-option span{font-size:14px;font-weight:500;color:var(--dark)}.theme-check{position:absolute;top:12px;right:12px;color:var(--primary)}.settings-about{text-align:center;padding:40px 20px;background:var(--hover-bg);border-radius:16px;margin-bottom:32px}.settings-about-logo{margin-bottom:24px}.logo-icon{font-size:64px;margin-bottom:16px}.settings-about-logo h4{font-size:24px;font-weight:600;color:var(--dark);margin:0 0 8px}.version{color:var(--gray);font-size:14px;margin:0}.settings-about-info{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}.about-item{display:flex;justify-content:space-between;padding:12px 16px;background:var(--light);border-radius:8px}.about-label{color:var(--gray);font-size:14px}.about-value{color:var(--dark);font-size:14px;font-weight:500}.settings-about-links{display:flex;justify-content:center;gap:24px}.about-link{color:var(--primary);font-size:14px;text-decoration:none;transition:color .2s}.about-link:hover{color:var(--primary-dark);text-decoration:underline}.settings-danger-zone{padding:24px;background:#fef2f2;border:1px solid #fecaca;border-radius:16px}.settings-danger-zone h4{color:#dc2626;margin:0 0 16px}@media (max-width: 768px){.settings-panel-new{flex-direction:column}.settings-sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border)}.settings-nav{display:flex;overflow-x:auto;padding:12px;gap:8px}.settings-nav-item{flex-shrink:0;padding:10px 16px;margin-bottom:0}.settings-nav-item span,.settings-sidebar-footer{display:none}.settings-tab-content{padding:24px 20px}.settings-avatar-section{flex-direction:column;text-align:center}.settings-avatar-actions{flex-direction:row;justify-content:center}.theme-options{flex-direction:column}}.reports-panel{padding:0}.reports-panel h3{margin:0 0 16px;font-size:18px;font-weight:600;color:var(--dark)}.reports-panel .filter-bar{display:flex;gap:12px;align-items:center;margin-bottom:16px}.reports-panel .filter-bar select{padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:var(--white);color:var(--dark);cursor:pointer;min-width:120px}.reports-panel .filter-bar select:hover{border-color:var(--primary)}.reports-panel table{width:100%;border-collapse:collapse;background:var(--white);border-radius:8px;overflow:hidden;box-shadow:0 1px 3px #00000014}.reports-panel table th{background:var(--sidebar);color:var(--dark);padding:14px 12px;text-align:left;font-weight:600;font-size:13px;white-space:nowrap}.reports-panel table td{padding:12px;border-bottom:1px solid var(--border);font-size:13px;vertical-align:middle}.reports-panel table tr:hover{background-color:#667eea0a}.reports-panel table tr:last-child td{border-bottom:none}.reports-panel .status-badge{display:inline-block;padding:4px 10px;border-radius:12px;font-size:12px;font-weight:500}.reports-panel .status-badge.status-online{background:#e3f2fd;color:#1976d2}.reports-panel .status-badge.status-offline{background:#f5f5f5;color:#757575}.reports-panel .status-badge.status-away{background:#fff3e0;color:#f57c00}.reports-panel .btn-sm{padding:6px 12px;font-size:12px;border:none;border-radius:4px;cursor:pointer;transition:all .2s;background:var(--light-gray);color:var(--dark)}.reports-panel .btn-sm:hover{background:var(--gray);transform:translateY(-1px)}.reports-panel .btn-sm.btn-warning{background:#fff3e0;color:#f57c00}.reports-panel .btn-sm.btn-warning:hover{background:#ffe0b2}.reports-panel .btn-sm.btn-danger{background:#ffebee;color:#d32f2f}.reports-panel .btn-sm.btn-danger:hover{background:#ffcdd2}.reports-panel .pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:20px;padding:16px 0}.reports-panel .pagination button{padding:8px 16px;border:1px solid var(--border);background:var(--white);color:var(--dark);border-radius:6px;cursor:pointer;font-size:13px;transition:all .2s}.reports-panel .pagination 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span{font-size:14px;font-weight:500;color:var(--dark)}.chat-background-options{display:flex;gap:12px}.bg-option{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px;background:var(--light);border:2px solid var(--border);border-radius:12px;cursor:pointer;transition:all .2s}.bg-option:hover{border-color:var(--primary)}.bg-option.active{border-color:var(--primary);background:var(--primary-light)}.bg-preview{width:80px;height:60px;border-radius:8px;display:flex;align-items:center;justify-content:center}.bg-preview.default{background:linear-gradient(135deg,#f1f5f9,#e2e8f0)}.bg-preview.custom{background:linear-gradient(135deg,#ddd6fe,#c4b5fd);color:var(--primary)}.bg-option span{font-size:14px;font-weight:500;color:var(--dark)}.current-bg-preview{margin-top:16px;display:flex;align-items:center;gap:16px;padding:12px;background:var(--light);border:1px solid var(--border);border-radius:12px}.current-bg-preview img{width:80px;height:60px;border-radius:8px;object-fit:cover}.current-bg-preview .remove-bg{display:flex;align-items:center;gap:6px;padding:8px 12px;background:var(--danger-light);color:var(--danger);border:none;border-radius:8px;cursor:pointer;font-size:13px;transition:all .2s}.current-bg-preview .remove-bg:hover{background:var(--danger);color:#fff}.preset-backgrounds{margin-top:20px}.bg-section-title{font-size:14px;font-weight:500;color:var(--gray);margin-bottom:12px}.preset-bg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.preset-bg-option{padding:0;border:2px solid var(--border);border-radius:10px;cursor:pointer;transition:all .2s;overflow:hidden;background:none}.preset-bg-option:hover{border-color:var(--primary);transform:scale(1.02)}.preset-bg-option.active{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-glow)}.preset-bg-preview{width:100%;height:50px}.custom-bg-upload{margin-top:20px}.custom-bg-upload .bg-option{flex:none;width:100px}.settings-select-group{margin-bottom:16px}.settings-select-group select{width:100%;padding:12px 40px 12px 16px;background:var(--light);border:1px solid var(--border);border-radius:10px;font-size:15px;color:var(--dark);cursor:pointer;transition:all .2s;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}.settings-select-group select:hover{border-color:var(--primary)}.settings-select-group select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px var(--primary-glow)}.time-format-options{display:flex;gap:12px}.time-format-option{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;background:var(--light);border:2px solid var(--border);border-radius:12px;cursor:pointer;transition:all .2s;color:var(--dark);font-size:14px}.time-format-option:hover{border-color:var(--primary)}.time-format-option.active{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.time-format-option .check-icon{margin-left:4px}.reports-panel .btn-refresh:disabled{opacity:.5;cursor:not-allowed}