*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:var(--font-family);font-size:var(--font-size-md);line-height:var(--line-height);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{cursor:pointer;border:none;background:none;font:inherit;color:inherit}input,textarea{font:inherit;color:inherit;border:none;outline:none;background:none}a{color:inherit;text-decoration:none}ul,ol{list-style:none}img,svg{display:block;max-width:100%}:root{--bg-primary: #17212b;--bg-secondary: #0e1621;--bg-tertiary: #1c2733;--bg-hover: #202b38;--bg-active: #2b3a4a;--bg-bubble-out: #2b5278;--bg-bubble-in: #182533;--bg-input: #1c2733;--bg-modal: #17212b;--bg-overlay: rgba(0, 0, 0, .6);--text-primary: #ffffff;--text-secondary: #a4b8c9;--text-muted: #8aa0b3;--text-accent: #6ba0d6;--text-bubble-out: #ffffff;--text-bubble-in: #ffffff;--text-time: #a4b8c9;--text-placeholder: #8aa0b3;--accent: #5288c1;--accent-hover: #4a7ab5;--accent-light: rgba(82, 136, 193, .15);--online: #4dcd5e;--unread-badge: #5288c1;--error: #e53e3e;--warning: #f6ad55;--success: #4dcd5e;--border: rgba(255, 255, 255, .05);--border-subtle: rgba(255, 255, 255, .03);--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-xs: 4px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-bubble-out: 18px 18px 4px 18px;--radius-bubble-in: 18px 18px 18px 4px;--radius-full: 50%;--sidebar-width: 320px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs: 11px;--font-size-sm: 13px;--font-size-md: 15px;--font-size-lg: 17px;--font-size-xl: 20px;--line-height: 1.5;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--z-sidebar: 10;--z-modal: 100;--z-toast: 200}[data-font-size=small]{--font-size-xs: 10px;--font-size-sm: 11px;--font-size-md: 13px;--font-size-lg: 15px;--font-size-xl: 18px}[data-font-size=large]{--font-size-xs: 12px;--font-size-sm: 15px;--font-size-md: 17px;--font-size-lg: 20px;--font-size-xl: 24px}[data-compact=true] .chat-item{padding:6px 12px!important}[data-compact=true] .message-bubble{padding:5px 10px!important}[data-compact=true] .message-row{margin-bottom:2px!important}[data-compact=true] .chat-item-avatar{width:38px!important;height:38px!important;min-width:38px!important;font-size:15px!important}[data-theme=dark]{color-scheme:dark}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f0f2f5;--bg-tertiary: #f7f8fa;--bg-hover: #e8eaed;--bg-active: #dde1e7;--bg-bubble-out: #4a9fd5;--bg-bubble-in: #ffffff;--bg-input: #ffffff;--bg-modal: #ffffff;--bg-overlay: rgba(0, 0, 0, .5);--text-primary: #000000;--text-secondary: #54656f;--text-muted: #5e6e78;--text-accent: #0a7cff;--text-bubble-out: #ffffff;--text-bubble-in: #111b21;--text-time: #5e6e78;--text-placeholder: #7a8b96;--accent: #0a7cff;--accent-hover: #0070f0;--accent-light: rgba(10, 124, 255, .12);--online: #25d366;--unread-badge: #25d366;--error: #e53935;--warning: #fb8c00;--success: #25d366;--border: rgba(0, 0, 0, .08);--border-subtle: rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .15);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .2)}body{background-color:var(--bg-secondary);color:var(--text-primary)}#app{display:flex;height:100vh;height:100svh;width:100vw;overflow:hidden}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-active);border-radius:2px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:var(--accent-light);color:var(--text-primary)}#toast-container{position:fixed;bottom:var(--spacing-lg);left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:var(--spacing-sm);z-index:var(--z-toast);pointer-events:none}@media (max-width: 768px){:root{--sidebar-width: 100vw}.sidebar-header,.chat-header{padding-top:max(var(--spacing-md),env(safe-area-inset-top))}.message-input-wrap,.channel-readonly-bar{padding-bottom:max(var(--spacing-sm),env(safe-area-inset-bottom))}.sidebar-icon-btn,.chat-header-btn,.chat-header-back{min-width:44px;min-height:44px}}button:focus-visible,a:focus-visible,[role=button]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}input:focus-visible,textarea:focus-visible,[contenteditable]:focus-visible{outline:none;box-shadow:inset 0 0 0 2px var(--accent)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes slideRight{0%{opacity:0;transform:translate(-16px)}to{opacity:1;transform:translate(0)}}@keyframes 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.chat-item-avatar.skeleton{width:48px;height:48px;border-radius:var(--radius-full);flex-shrink:0}.chat-list-empty{display:flex;flex-direction:column;align-items:center;text-align:center;padding:48px 24px;gap:8px;color:var(--text-secondary)}.chat-list-empty-icon{font-size:40px;opacity:.7;margin-bottom:8px}.chat-list-empty-title{margin:0;font-size:var(--font-size-lg);font-weight:600;color:var(--text-primary)}.chat-list-empty-sub{margin:0 0 12px;font-size:var(--font-size-sm);color:var(--text-muted);max-width:240px;line-height:1.45}.chat-list-empty-cta{background:var(--accent);color:#fff;padding:10px 20px;border-radius:var(--radius-sm);font-size:var(--font-size-sm);font-weight:500;transition:background .15s,transform .08s,opacity .12s}.chat-list-empty-cta:hover{background:var(--accent-hover)}.chat-list-empty-cta:active{transform:scale(.97);opacity:.85}.message-list-skeleton{padding:12px 16px;display:flex;flex-direction:column;gap:4px}.message-list-skeleton .message-row{display:flex;margin:0}.message-list-skeleton .message-row--in{justify-content:flex-start}.message-list-skeleton .message-row--out{justify-content:flex-end}.app-layout{display:flex;width:100%;height:100vh;height:100svh;overflow:hidden;background:var(--bg-secondary);position:relative;animation:fadeIn .2s ease both}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);height:100%;display:flex;flex-direction:column;background:var(--bg-primary);border-right:1px solid var(--border);overflow:hidden}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-sm) var(--spacing-md);height:56px;border-bottom:1px solid 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.12s}.sidebar-create-menu-item:hover{background:var(--bg-hover)}.sidebar-icon-btn{width:34px;height:34px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:16px;transition:background var(--transition-fast),color var(--transition-fast)}.sidebar-icon-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.sidebar-icon-btn--danger:hover{background:#e53e3e26;color:#e53e3e}.sidebar-settings-footer-btn{display:flex;align-items:center;gap:8px;width:100%;padding:12px 16px;background:transparent;border:none;border-top:1px solid var(--border);color:var(--text-secondary);font-size:var(--font-size-sm);cursor:pointer;transition:background .15s,color .15s;flex-shrink:0}.sidebar-settings-footer-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.chat-list{flex:1;overflow-y:auto;overflow-x:hidden}.chat-list-empty{padding:var(--spacing-xl) var(--spacing-md);text-align:center;color:var(--text-secondary);font-size:var(--font-size-sm)}.chat-item{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-md);cursor:pointer;transition:background var(--transition-fast);border-radius:0;min-height:64px}.chat-item:hover{background:var(--bg-hover)}.chat-item--active{background:var(--bg-active);border-left:3px solid var(--accent)}.chat-item:not(.chat-item--active){border-left:3px solid transparent}.chat-item-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.chat-item-top{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-xs)}.chat-item-name{font-size:var(--font-size-md);font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item-time{font-size:var(--font-size-xs);color:var(--text-secondary);flex-shrink:0}.chat-item-bottom{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-xs)}.chat-item-preview{font-size:var(--font-size-sm);color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.chat-item-badge{background:var(--unread-badge);color:#fff;font-size:var(--font-size-xs);font-weight:600;min-width:20px;height:20px;border-radius:10px;display:flex;align-items:center;justify-content:center;padding:0 6px;flex-shrink:0}.chat-filter-tabs{display:flex;gap:4px;padding:6px var(--spacing-sm) 6px;border-bottom:1px solid var(--border);background:var(--bg-primary);overflow-x:auto;scrollbar-width:none;flex-shrink:0}.chat-filter-tabs::-webkit-scrollbar{display:none}.chat-filter-tab{display:inline-flex;align-items:center;gap:5px;padding:5px 11px;border-radius:16px;font-size:var(--font-size-sm);font-weight:500;background:transparent;color:var(--text-secondary);border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background-color .12s,color .12s,border-color .12s;flex-shrink:0}.chat-filter-tab:hover{background:var(--bg-hover);color:var(--text-primary)}.chat-filter-tab--active{background:var(--accent-light);color:var(--accent);border-color:var(--accent-light)}.chat-filter-tab--active:hover{background:var(--accent-light);color:var(--accent)}.chat-filter-tab-label{line-height:1}.chat-filter-tab-badge{background:var(--unread-badge);color:#fff;font-size:10px;font-weight:600;line-height:1;padding:2px 6px;border-radius:8px;min-width:16px;text-align:center}.chat-filter-tab--active .chat-filter-tab-badge{background:var(--accent)}.chat-filter-tab-dot{width:7px;height:7px;border-radius:50%;background:var(--online);flex-shrink:0;animation:chat-filter-live-pulse 1.8s ease-in-out infinite}@keyframes chat-filter-live-pulse{0%,to{opacity:.55}50%{opacity:1}}@media (prefers-reduced-motion: reduce){.chat-filter-tab-dot{animation:none;opacity:.85}}.chat-list-empty-filter{padding:var(--spacing-lg) var(--spacing-md);text-align:center;color:var(--text-muted);font-size:var(--font-size-sm)}.search-panel{display:flex;flex-direction:column;height:100%;background:var(--bg-primary)}.search-panel-header{display:flex;align-items:center;gap:var(--spacing-sm);padding:10px var(--spacing-md);height:56px;border-bottom:1px solid var(--border);flex-shrink:0}.search-back-btn{width:36px;height:36px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);flex-shrink:0;transition:background var(--transition-fast),color var(--transition-fast)}.search-back-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.search-panel-input{flex:1;background:var(--bg-input);border-radius:var(--radius-sm);padding:8px 12px;font-size:var(--font-size-sm);color:var(--text-primary);height:36px;outline:none;border:1px solid transparent;transition:border-color var(--transition-fast)}.search-panel-input:focus{border-color:var(--accent)}.search-panel-input::placeholder{color:var(--text-placeholder)}.search-panel-body{flex:1;overflow-y:auto}.search-panel-hint{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:48px var(--spacing-md) var(--spacing-md);text-align:center;color:var(--text-secondary);font-size:var(--font-size-sm);line-height:1.6}.search-panel-hint-icon{font-size:40px;line-height:1}.search-spinner{width:28px;height:28px;border:3px solid var(--bg-active);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.search-panel-list{padding:var(--spacing-sm) 0}.search-user-item{display:flex;align-items:center;gap:var(--spacing-md);padding:10px var(--spacing-md);cursor:pointer;transition:background var(--transition-fast);position:relative}.search-user-item:hover{background:var(--bg-hover)}.search-user-item--self{opacity:.6;cursor:default}.search-user-item--self:hover{background:transparent}.search-user-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.search-user-name{font-size:var(--font-size-md);font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.search-user-you{font-size:12px;color:var(--accent);font-weight:400}.search-user-login{font-size:var(--font-size-sm);color:var(--text-secondary)}.search-user-write-btn{display:flex;align-items:center;gap:5px;padding:6px 12px;background:var(--accent);color:#fff;border-radius:var(--radius-sm);font-size:13px;font-weight:500;transition:background var(--transition-fast),opacity var(--transition-fast);flex-shrink:0;white-space:nowrap}.search-user-write-btn:hover{background:var(--accent-hover)}.search-user-write-btn--loading{opacity:.6}.search-user-write-btn:disabled{opacity:.5;cursor:not-allowed}.chat-view{flex:1;display:flex;flex-direction:column;height:100%;min-width:0;background:var(--bg-secondary);position:relative;overflow:hidden}.chat-view:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle,rgba(82,136,193,.05) 1px,transparent 1px);background-size:28px 28px;pointer-events:none;opacity:.7}.chat-header{display:flex;align-items:center;padding:0 var(--spacing-md);height:56px;background:var(--bg-primary);border-bottom:1px solid var(--border);flex-shrink:0;position:relative;z-index:100;overflow:visible}.chat-header-back{display:none;width:36px;height:36px;border-radius:var(--radius-full);align-items:center;justify-content:center;color:var(--text-secondary);flex-shrink:0;margin-right:var(--spacing-xs);transition:background var(--transition-fast),color var(--transition-fast)}.chat-header-back:hover{background:var(--bg-hover);color:var(--text-primary)}@media (max-width: 768px){.chat-header-back{display:flex}}.chat-header-info{display:flex;align-items:center;gap:var(--spacing-sm);min-width:0;flex:1}.chat-header-text{display:flex;flex-direction:column;min-width:0}.chat-header-name{font-size:var(--font-size-md);font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header-status{font-size:var(--font-size-xs);color:var(--text-secondary);transition:color var(--transition-fast)}.chat-header-status--online{color:var(--online);font-weight:500}.chat-empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-secondary);gap:var(--spacing-md);position:relative;z-index:1;animation:fadeIn .3s ease both}.chat-empty-title{font-size:var(--font-size-xl);font-weight:700;color:var(--text-primary);letter-spacing:-.3px}.chat-empty-subtitle{font-size:var(--font-size-sm);color:var(--text-secondary);max-width:260px;text-align:center;line-height:1.6}.message-list-wrap{flex:1;min-height:0;position:relative;display:flex;flex-direction:column}.message-list{flex:1;overflow-y:auto;overflow-x:hidden;padding:var(--spacing-md);display:flex;flex-direction:column;gap:2px;position:relative;z-index:1;scrollbar-width:none}.message-list::-webkit-scrollbar{display:none}.message-list-empty{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:var(--font-size-sm);padding:var(--spacing-xl);text-align:center}.message-list-spinner{display:flex;justify-content:center;padding:32px}.scroll-to-bottom-btn{position:absolute;bottom:16px;right:20px;min-width:36px;min-height:36px;width:auto;height:auto;padding:6px 8px;border-radius:var(--radius-full);background:var(--bg-primary);color:var(--text-secondary);box-shadow:var(--shadow-md);border:1px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;z-index:2;transition:background var(--transition-fast),color var(--transition-fast),transform var(--transition-fast);animation:fadeIn .15s ease both}.scroll-to-bottom-btn:hover{background:var(--bg-hover);color:var(--text-primary);transform:translateY(-2px)}.scroll-btn-count{font-size:11px;font-weight:600;color:var(--accent);line-height:1}.msg-date-divider{display:flex;align-items:center;justify-content:center;margin:var(--spacing-md) 0 var(--spacing-sm);gap:var(--spacing-sm)}.msg-date-divider:before,.msg-date-divider:after{content:"";flex:1;height:1px;background:var(--border);max-width:60px}.msg-date-divider span{background:var(--bg-tertiary);color:var(--text-muted);font-size:var(--font-size-xs);padding:4px 14px;border-radius:12px;border:1px solid var(--border-subtle);white-space:nowrap}.msg-wrap{display:flex;align-items:flex-end;gap:var(--spacing-xs);margin-bottom:2px;position:relative}.msg-node-insert-animate{animation:bubblePop .2s ease both}.msg-wrap--out{flex-direction:row-reverse}.msg-wrap--in{flex-direction:row}.msg-bubble{max-width:480px;min-width:60px;padding:8px 12px 6px;position:relative;word-wrap:break-word;word-break:break-word}.msg-bubble--out{background:var(--bg-bubble-out);color:var(--text-bubble-out);border-radius:var(--radius-bubble-out)}.msg-bubble--in{background:var(--bg-bubble-in);color:var(--text-bubble-in);border-radius:var(--radius-bubble-in)}.msg-bubble--in.msg-bubble--group-first{border-radius:18px 18px 18px 4px}.msg-bubble--in.msg-bubble--group-mid{border-radius:4px 18px 18px 4px}.msg-bubble--in.msg-bubble--group-last{border-radius:4px 18px 18px}.msg-bubble--out.msg-bubble--group-first{border-radius:18px 18px 4px}.msg-bubble--out.msg-bubble--group-mid{border-radius:18px 4px 4px 18px}.msg-bubble--out.msg-bubble--group-last{border-radius:18px 4px 18px 18px}.msg-wrap--group-first,.msg-wrap--group-mid{margin-bottom:1px}.msg-text{font-size:var(--font-size-md);line-height:1.45;display:block;padding-right:48px}.msg-meta{display:flex;align-items:center;justify-content:flex-end;gap:4px;margin-top:2px;float:right;margin-left:8px;margin-bottom:-2px}.msg-time{font-size:var(--font-size-xs);color:#ffffff8c;white-space:nowrap}.msg-status{font-size:12px;color:#ffffff8c}.msg-status--pending{opacity:.5}.msg-status--read{color:#5ac8fa}.msg-status--error{color:#ff6b6b;font-size:14px}.typing-bubble{padding:10px 14px;display:flex;gap:4px;align-items:center;min-width:52px}.typing-dot{width:7px;height:7px;border-radius:50%;background:var(--text-secondary);animation:typingDot 1.2s infinite ease-in-out;display:inline-block}.message-input-wrap{background:var(--bg-primary);flex-shrink:0;position:relative;z-index:1}.message-input{flex:1;background:var(--bg-input);border-radius:var(--radius-md);padding:10px var(--spacing-md);font-size:var(--font-size-md);color:var(--text-primary);resize:none;line-height:1.4;min-height:40px;max-height:120px;overflow-y:auto;transition:background var(--transition-fast)}.message-input:focus{background:var(--bg-active)}.message-input::placeholder{color:var(--text-placeholder)}.message-send-btn{width:44px;height:44px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--accent) 0%,#3a6ea8 100%);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:filter var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast);box-shadow:0 2px 8px #5288c14d}.message-send-btn:hover{filter:brightness(1.1);transform:scale(1.05);box-shadow:0 4px 12px #5288c166}.message-send-btn:active{transform:scale(.95);box-shadow:none}.auth-root{width:100%;height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);background-image:radial-gradient(ellipse at 50% 30%,rgba(82,136,193,.08) 0%,transparent 60%);padding:var(--spacing-md)}.auth-card{width:100%;max-width:380px;background:var(--bg-primary);border-radius:var(--radius-md);padding:var(--spacing-xl) var(--spacing-lg);box-shadow:var(--shadow-lg);border:1px solid var(--border);display:flex;flex-direction:column;gap:var(--spacing-md)}.auth-logo{display:flex;align-items:center;justify-content:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-xs)}.auth-logo-icon{width:72px;height:72px;object-fit:contain;filter:drop-shadow(0 4px 16px rgba(74,185,232,.5))}.auth-logo-text{font-size:var(--font-size-xl);font-weight:700;color:var(--text-primary)}.auth-subtitle{text-align:center;color:var(--text-secondary);font-size:var(--font-size-sm);margin-top:-8px}.auth-form{display:flex;flex-direction:column;gap:var(--spacing-sm)}.auth-field{display:flex;flex-direction:column;gap:4px}.auth-input{background:var(--bg-input);border-radius:var(--radius-sm);padding:11px var(--spacing-md);font-size:var(--font-size-md);color:var(--text-primary);width:100%;transition:background var(--transition-fast),outline var(--transition-fast);outline:2px solid transparent}.auth-input:focus{background:var(--bg-active);outline-color:var(--accent)}.auth-input::placeholder{color:var(--text-placeholder)}.auth-field-error{color:var(--error);font-size:var(--font-size-xs);min-height:14px;padding-left:4px}.auth-btn{background:linear-gradient(135deg,var(--accent) 0%,#3a6ea8 100%);color:#fff;border-radius:var(--radius-sm);padding:12px;font-size:var(--font-size-md);font-weight:600;width:100%;margin-top:var(--spacing-xs);transition:filter var(--transition-fast),transform var(--transition-fast),box-shadow var(--transition-fast);box-shadow:0 2px 10px #5288c14d}.auth-btn:hover{filter:brightness(1.08);box-shadow:0 4px 16px #5288c166}.auth-btn:active{transform:scale(.98);box-shadow:none}.auth-btn:disabled{opacity:.6;cursor:not-allowed}.auth-btn--loading{color:transparent;position:relative;pointer-events:none}.auth-btn--loading:after{content:"";position:absolute;top:50%;left:50%;width:18px;height:18px;margin:-9px 0 0 -9px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}.auth-password-wrap{position:relative;display:flex;align-items:center}.auth-password-wrap .auth-input{padding-right:40px}.auth-password-toggle{position:absolute;right:10px;color:var(--text-muted);display:flex;align-items:center;justify-content:center;transition:color var(--transition-fast);padding:4px;border-radius:var(--radius-xs)}.auth-password-toggle:hover{color:var(--text-secondary)}.auth-otp-wrap{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.auth-otp-wrap--focus .auth-otp-slot{border-color:color-mix(in srgb,var(--accent) 45%,var(--border));box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 22%,transparent)}.auth-otp-slot{height:46px;border-radius:10px;border:1px solid var(--border);background:var(--bg-input);color:var(--text-secondary);font-size:24px;font-weight:700;letter-spacing:0;display:flex;align-items:center;justify-content:center;cursor:text;transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast),transform var(--transition-fast)}.auth-otp-slot--filled{color:var(--text-main);background:color-mix(in srgb,var(--bg-input) 80%,var(--accent) 20%);transform:translateY(-1px)}.auth-otp-input{position:absolute!important;opacity:0;pointer-events:none;height:0;width:0;padding:0;margin:0;border:0}@media (max-width: 420px){.auth-otp-wrap{gap:6px}.auth-otp-slot{height:42px;border-radius:8px;font-size:22px}}.auth-switch{text-align:center;font-size:var(--font-size-sm);color:var(--text-secondary)}.auth-switch-btn{color:var(--accent);font-weight:500;transition:color var(--transition-fast)}.auth-switch-btn:hover{color:var(--accent-hover);text-decoration:underline}.auth-diag-btn{margin-top:12px;font-size:11px;color:var(--text-muted);text-align:center;width:100%;padding:4px;border-radius:var(--radius-xs);transition:color var(--transition-fast),background var(--transition-fast)}.auth-diag-btn:hover{color:var(--text-secondary);background:var(--bg-hover)}.sidebar-avatar-btn{display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);transition:opacity var(--transition-fast),transform var(--transition-fast);flex-shrink:0}.sidebar-avatar-btn:hover{opacity:.85;transform:scale(1.05)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-overlay);display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);padding:var(--spacing-md);animation:fadeIn .15s ease both}.modal-card{background:var(--bg-primary);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);border:1px solid var(--border);width:100%;max-width:420px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border);flex-shrink:0}.modal-title{font-size:var(--font-size-lg);font-weight:600;color:var(--text-primary)}.modal-close-btn{width:30px;height:30px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:14px;transition:background var(--transition-fast),color var(--transition-fast)}.modal-close-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.modal-body{padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md);overflow-y:auto}.profile-avatar-section{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md)}.profile-avatar-wrap{position:relative;display:inline-flex;align-items:center;justify-content:center}.profile-avatar-cam-btn{position:absolute;bottom:-4px;right:-4px;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;border:2px solid var(--bg-primary);cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast);z-index:1}.profile-avatar-cam-btn:hover{background:var(--accent-hover, #1a73e8);transform:scale(1.1)}.profile-avatar-del-btn{position:absolute;top:-4px;right:-4px;width:20px;height:20px;border-radius:50%;background:var(--danger, #e74c3c);color:#fff;font-size:10px;display:flex;align-items:center;justify-content:center;border:2px solid var(--bg-primary);cursor:pointer;z-index:1}.profile-avatar-del-btn:hover{filter:brightness(1.2)}.profile-color-picker{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.profile-color-btn{width:28px;height:28px;border-radius:var(--radius-full);border:3px solid transparent;transition:transform var(--transition-fast),border-color var(--transition-fast);flex-shrink:0}.profile-color-btn:hover{transform:scale(1.15)}.profile-color-btn--active{border-color:var(--text-primary);transform:scale(1.1)}.profile-label{font-size:var(--font-size-sm);color:var(--text-secondary);margin-bottom:4px;display:block}.profile-bio-input{resize:none;line-height:1.5;min-height:72px}.profile-username-hint{font-size:var(--font-size-xs);color:var(--text-muted);text-align:center}.profile-username-hint strong{color:var(--text-accent)}@media (max-width: 768px){.sidebar{position:absolute;left:0;top:0;z-index:var(--z-sidebar);width:100vw;min-width:100vw;transform:translate(0);transition:transform var(--transition-normal)}.sidebar.sidebar--hidden{transform:translate(-100%)}.chat-view{width:100vw}}.ctx-menu{position:fixed;z-index:500;background:var(--bg-modal);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:4px 0;min-width:160px;animation:fadeIn .1s ease both}.ctx-menu-item{display:block;width:100%;padding:10px 16px;text-align:left;font-size:var(--font-size-sm);color:var(--text-primary);background:none;border:none;cursor:pointer;transition:background var(--transition-fast)}.ctx-menu-item:hover{background:var(--bg-hover)}.ctx-menu-item--danger{color:var(--error)}.ctx-menu-item--danger:hover{background:#e53e3e1a}.msg-reply-quote{border-left:3px solid var(--accent);padding:4px 8px;margin-bottom:6px;border-radius:0 4px 4px 0;background:#0000001f}.msg-bubble--out .msg-reply-quote{background:#00000026;border-color:#ffffff80}.msg-reply-quote-text{font-size:var(--font-size-xs);color:var(--text-secondary);display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.msg-bubble--out .msg-reply-quote-text{color:#ffffffbf}.msg-edited{font-size:11px;color:var(--text-muted);font-style:italic;margin-right:2px}.msg-bubble--out .msg-edited{color:#fff9}.msg-bubble--deleted{opacity:.6}.msg-deleted-text{font-size:var(--font-size-sm);font-style:italic;color:var(--text-muted);display:block;padding:2px 0}.msg-image{max-width:300px;max-height:300px;border-radius:var(--radius-sm);display:block;cursor:pointer;transition:opacity var(--transition-fast);margin-bottom:4px}.msg-image:hover{opacity:.9}.msg-audio{display:block;width:240px;height:36px;margin-bottom:4px}.img-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:600;background:#000000e6;display:flex;align-items:center;justify-content:center;cursor:pointer;animation:fadeIn .15s ease}.img-overlay-img{max-width:95vw;max-height:95vh;object-fit:contain;border-radius:var(--radius-sm);box-shadow:0 0 40px #00000080}.msg-bubble--highlight{outline:2px solid var(--accent);outline-offset:2px;animation:highlightPulse .4s ease}@keyframes highlightPulse{0%{outline-color:var(--accent)}50%{outline-color:#fff}to{outline-color:var(--accent)}}.message-input-wrap{display:flex;flex-direction:column;border-top:1px solid var(--border);background:var(--bg-primary)}.reply-bar{display:flex;align-items:center;gap:var(--spacing-sm);padding:8px 12px 6px;background:var(--bg-tertiary);border-bottom:1px solid var(--border);animation:fadeIn .15s ease}.reply-bar-content{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.reply-bar-label{font-size:var(--font-size-xs);font-weight:600;color:var(--accent)}.reply-bar-label--edit{color:var(--warning)}.reply-bar-text{font-size:var(--font-size-sm);color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reply-bar-close{width:28px;height:28px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--text-muted);flex-shrink:0;transition:background var(--transition-fast),color var(--transition-fast)}.reply-bar-close:hover{background:var(--bg-hover);color:var(--text-primary)}.message-input-row{display:flex;align-items:flex-end;gap:var(--spacing-xs);padding:var(--spacing-sm) var(--spacing-sm)}.message-attach-btn,.message-mic-btn,.message-emoji-btn{width:38px;height:38px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);flex-shrink:0;transition:background var(--transition-fast),color var(--transition-fast)}.message-attach-btn:hover,.message-mic-btn:hover,.message-emoji-btn:hover{background:var(--bg-hover);color:var(--accent)}.message-mic-btn--recording{color:var(--error)!important;background:#e53e3e1f!important;animation:micPulse 1s ease infinite}@keyframes micPulse{0%,to{opacity:1}50%{opacity:.6}}.chat-header-btn{width:36px;height:36px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);flex-shrink:0;transition:background var(--transition-fast),color var(--transition-fast)}.chat-header-btn:hover{background:var(--bg-hover);color:var(--text-primary)}.chat-search-panel{display:flex;align-items:center;gap:var(--spacing-xs);width:100%;padding:0 4px;flex-wrap:wrap}.chat-search-input{flex:1;height:36px;padding:0 12px;border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--bg-input);color:var(--text-primary);font-size:var(--font-size-sm);outline:none;transition:border-color var(--transition-fast)}.chat-search-input:focus{border-color:var(--accent)}.chat-search-counter{font-size:var(--font-size-xs);color:var(--text-muted);white-space:nowrap;min-width:40px;text-align:center}.chat-search-nav{width:28px;height:28px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text-secondary);transition:background var(--transition-fast)}.chat-search-nav:hover{background:var(--bg-hover);color:var(--text-primary)}.chat-search-close{width:28px;height:28px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:background var(--transition-fast),color var(--transition-fast)}.chat-search-close:hover{background:var(--bg-hover);color:var(--error)}.chat-search-filter{height:32px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--bg-input);color:var(--text-secondary);font-size:var(--font-size-xs);padding:0 8px}.chat-search-recent{width:100%;display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-top:2px}.chat-search-recent-title{color:var(--text-muted);font-size:var(--font-size-xs)}.chat-search-recent-chip{border:1px solid var(--border);background:var(--bg-tertiary);color:var(--text-secondary);border-radius:var(--radius-full);padding:4px 10px;font-size:var(--font-size-xs)}.chat-search-snippet{font-size:var(--font-size-xs);color:var(--text-secondary);opacity:.9}.chat-item--pinned{background:var(--bg-tertiary)}.chat-item-name svg{display:inline-block;vertical-align:middle;margin-right:4px;color:var(--text-muted);opacity:.7;flex-shrink:0}.profile-field-error{display:block;font-size:var(--font-size-xs);color:var(--error);margin-top:4px;min-height:16px}.profile-secondary-btn{margin-top:8px;padding:8px 16px;border-radius:var(--radius-sm);border:1px solid var(--accent);color:var(--accent);font-size:var(--font-size-sm);font-weight:500;background:transparent;cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast)}.profile-secondary-btn:hover{background:var(--accent-light)}.profile-secondary-btn:disabled{opacity:.6;cursor:not-allowed}.profile-delete-section{margin-top:var(--spacing-lg);padding-top:var(--spacing-md);border-top:1px solid var(--border)}.profile-delete-btn{padding:8px 16px;border-radius:var(--radius-sm);border:1px solid var(--error);color:var(--error);font-size:var(--font-size-sm);font-weight:500;background:transparent;cursor:pointer;transition:background var(--transition-fast)}.profile-delete-btn:hover{background:#e53e3e14}.profile-delete-confirm{margin-top:var(--spacing-sm);display:flex;flex-direction:column;gap:var(--spacing-sm);animation:fadeIn .15s ease}.profile-delete-warning{font-size:var(--font-size-sm);color:var(--error);padding:8px 12px;background:#e53e3e14;border-radius:var(--radius-sm);border-left:3px solid var(--error)}.auth-btn--danger{background:var(--error)!important}.auth-btn--danger:hover{background:#c53030!important}[data-theme=light] .msg-bubble--in{box-shadow:var(--shadow-sm)}[data-theme=light] .message-input-wrap{border-top-color:var(--border)}[data-theme=light] .chat-header{box-shadow:0 1px 4px #00000014}[data-theme=light] .sidebar{box-shadow:1px 0 4px #0000000f}[data-theme=light] .ctx-menu{box-shadow:0 4px 20px #00000026}.msg-sender-name{display:block;font-size:var(--font-size-xs);font-weight:600;margin-bottom:2px}.call-menu-wrap{position:relative;display:flex;align-items:center}.call-type-menu{position:absolute;top:calc(100% + 6px);right:0;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);padding:6px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:2px;z-index:200;min-width:160px;animation:fadeIn .12s ease}.call-type-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border:none;background:none;border-radius:var(--radius-sm);cursor:pointer;color:var(--text-primary);font-size:var(--font-size-sm);white-space:nowrap;transition:background .13s;width:100%;text-align:left}.call-type-item:hover{background:var(--bg-hover)}.chat-header-actions{display:flex;align-items:center;gap:2px;margin-left:auto;flex-shrink:0}.group-panel{position:absolute;top:57px;right:8px;min-width:240px;max-width:300px;max-height:70vh;overflow-y:auto;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:500;padding:var(--spacing-sm) 0;animation:fadeIn .15s ease}.group-panel-title{font-size:var(--font-size-xs);font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;padding:4px var(--spacing-md) 8px;border-bottom:1px solid var(--border);margin-bottom:4px}.group-panel-member{display:flex;align-items:center;gap:var(--spacing-sm);padding:6px var(--spacing-md);transition:background var(--transition-fast)}.group-panel-member:hover{background:var(--bg-hover)}.group-panel-member-name{flex:1;font-size:var(--font-size-sm);color:var(--text-primary);display:flex;align-items:center;gap:6px}.group-panel-admin-badge{font-size:10px;font-weight:600;padding:1px 6px;border-radius:8px;background:var(--accent-light);color:var(--accent);text-transform:lowercase}.group-panel-kick{width:24px;height:24px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text-muted);transition:background var(--transition-fast),color var(--transition-fast);flex-shrink:0}.group-panel-kick:hover{background:#e53e3e1f;color:var(--error)}.group-panel-leave{width:calc(100% - var(--spacing-lg));margin:8px var(--spacing-sm) 4px;padding:7px 12px;border-radius:var(--radius-sm);border:1px solid var(--error);color:var(--error);font-size:var(--font-size-sm);font-weight:500;background:transparent;cursor:pointer;transition:background var(--transition-fast);text-align:center}.group-panel-leave:hover{background:#e53e3e14}.create-group-modal{max-width:420px;width:100%}.group-selected-wrap{display:flex;flex-wrap:wrap;gap:6px;min-height:32px;align-items:center;padding:4px 0}.group-selected-hint{font-size:var(--font-size-sm);color:var(--text-muted)}.group-member-tag{display:flex;align-items:center;gap:5px;padding:3px 6px 3px 4px;border-radius:20px;background:var(--accent-light);font-size:var(--font-size-xs);color:var(--accent);font-weight:500}.group-member-tag-remove{width:16px;height:16px;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--accent);transition:background var(--transition-fast);flex-shrink:0}.group-member-tag-remove:hover{background:var(--accent);color:#fff}.group-search-results{max-height:240px;overflow-y:auto;border:1px solid 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