:root{--primary: #25D366;--primary-dark: #128C7E;--primary-light: #DCF8C6;--bg: #111B21;--bg-sidebar: #1F2C33;--bg-chat: #0B141A;--bg-input: #2A3942;--bg-bubble-mine: #005C4B;--bg-bubble-theirs: #1F2C33;--text: #E9EDEF;--text-secondary: #8696A0;--border: #2A3942;--danger: #EF4444;--radius: 8px;--radius-lg: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);overflow:hidden;height:100vh}#root{height:100vh;display:flex}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100vh;gap:24px}.loading-logo{font-size:48px;font-weight:700;color:var(--primary)}.loading-spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-screen{display:flex;align-items:center;justify-content:center;width:100%;height:100vh;background:var(--bg)}.login-card{background:var(--bg-sidebar);border-radius:var(--radius-lg);padding:48px 40px;width:100%;max-width:400px;text-align:center}.login-logo{font-size:42px;font-weight:700;color:var(--primary);margin-bottom:8px}.login-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:14px}.login-form{display:flex;flex-direction:column;gap:12px}.login-form input,.dialog-card input{width:100%;padding:12px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;outline:none;transition:border-color .2s}.login-form input:focus,.dialog-card input:focus{border-color:var(--primary)}.login-form button,.dialog-card button[type=submit]{padding:12px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:background .2s}.login-form button:hover:not(:disabled),.dialog-card button[type=submit]:hover:not(:disabled){background:var(--primary-dark)}.login-form button:disabled,.dialog-card button[type=submit]:disabled{opacity:.5;cursor:not-allowed}.login-error{color:var(--danger);font-size:13px;text-align:left}.login-toggle{background:none;border:none;color:var(--primary);cursor:pointer;font-size:13px;margin-top:16px;padding:8px}.login-toggle:hover{text-decoration:underline}.tg-login-btn{width:100%;padding:12px 16px;border:none;border-radius:var(--radius);background:#08c;color:#fff;font-size:15px;font-weight:600;cursor:pointer;margin-bottom:12px;transition:background .2s}.tg-login-btn:hover:not(:disabled){background:#006da3}.tg-login-btn:disabled{opacity:.6;cursor:not-allowed}.tg-waiting{display:flex;flex-direction:column;align-items:center;gap:12px;padding:16px 0}.tg-waiting-icon{animation:pulse 1.5s ease-in-out infinite}.tg-waiting-text{color:var(--text);font-size:14px;text-align:center}.tg-waiting-spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:#08c;border-radius:50%;animation:spin .8s linear infinite}.tg-open-bot{color:#08c;text-decoration:none;font-size:14px;font-weight:500}.tg-open-bot:hover{text-decoration:underline}.chat-layout{display:flex;width:100%;height:100vh}.sidebar{width:360px;min-width:360px;background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;height:100vh}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-sidebar)}.sidebar-logo{font-size:22px;font-weight:700;color:var(--primary)}.sidebar-actions{display:flex;gap:8px}.sidebar-user{padding:0 16px 12px;font-size:13px;color:var(--text-secondary)}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);margin-top:auto}.logout-btn{width:100%;padding:10px;background:none;border:1px solid var(--border);border-radius:var(--radius);color:var(--text-secondary);font-size:14px;cursor:pointer;transition:all .2s}.logout-btn:hover{color:var(--danger);border-color:var(--danger);border-bottom:1px solid var(--border)}.icon-btn{background:none;border:none;color:var(--text-secondary);font-size:20px;cursor:pointer;padding:8px;border-radius:var(--radius);transition:background .2s}.icon-btn:hover{background:var(--bg-input);color:var(--text)}.room-list{flex:1;overflow-y:auto}.room-list-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:200px;color:var(--text-secondary);font-size:14px}.room-list-empty .hint{font-size:12px;margin-top:8px}.room-item{display:flex;align-items:center;width:100%;padding:12px 16px;background:none;border:none;border-bottom:1px solid var(--border);cursor:pointer;text-align:left;color:var(--text);transition:background .15s;gap:12px}.room-item:hover{background:#ffffff0d}.room-item.active{background:#25d3661a}.room-avatar{width:48px;height:48px;border-radius:50%;background:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;color:#fff;flex-shrink:0}.room-info{flex:1;min-width:0}.room-name{font-size:15px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.room-last-msg{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.room-time{font-size:11px;color:var(--text-secondary);flex-shrink:0}.chat-main{flex:1;display:flex;flex-direction:column;background:var(--bg-chat);height:100vh}.chat-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-secondary)}.chat-empty-icon{font-size:64px;font-weight:700;color:var(--primary);opacity:.3;margin-bottom:16px}.chat-room{display:flex;flex-direction:column;height:100vh}.chat-room-header{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-sidebar);border-bottom:1px solid var(--border)}.chat-room-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary-dark);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;color:#fff}.chat-room-name{font-size:16px;font-weight:500}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:4px}.chat-no-messages{display:flex;align-items:center;justify-content:center;height:100%;color:var(--text-secondary);font-size:14px}.message{display:flex;flex-direction:column;max-width:65%}.message.mine{align-self:flex-end;align-items:flex-end}.message.theirs{align-self:flex-start;align-items:flex-start}.message-sender{font-size:12px;color:var(--primary);margin-bottom:2px;padding-left:12px}.message-bubble{padding:8px 12px;border-radius:var(--radius);position:relative;display:flex;gap:8px;align-items:flex-end}.mine .message-bubble{background:var(--bg-bubble-mine);border-bottom-right-radius:4px}.theirs .message-bubble{background:var(--bg-bubble-theirs);border-bottom-left-radius:4px}.message-body{font-size:14px;line-height:1.4;word-break:break-word;white-space:pre-wrap}.message-time{font-size:10px;color:var(--text-secondary);white-space:nowrap;flex-shrink:0}.chat-input-bar{display:flex;gap:8px;padding:12px 16px;background:var(--bg-sidebar);border-top:1px solid var(--border)}.chat-input-bar input{flex:1;padding:10px 16px;background:var(--bg-input);border:none;border-radius:24px;color:var(--text);font-size:14px;outline:none}.chat-input-bar input::placeholder{color:var(--text-secondary)}.chat-input-bar button{padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:24px;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s}.chat-input-bar button:hover:not(:disabled){background:var(--primary-dark)}.chat-input-bar button:disabled{opacity:.5;cursor:not-allowed}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.dialog-card{background:var(--bg-sidebar);border-radius:var(--radius-lg);padding:32px;width:100%;max-width:400px}.dialog-card h2{font-size:20px;margin-bottom:8px}.dialog-card p{color:var(--text-secondary);font-size:13px;margin-bottom:16px}.dialog-card form{display:flex;flex-direction:column;gap:12px}.dialog-actions{display:flex;gap:8px;justify-content:flex-end}.btn-secondary{padding:10px 20px;background:var(--bg-input);color:var(--text);border:none;border-radius:var(--radius);font-size:14px;cursor:pointer}.btn-secondary:hover{background:var(--border)}.message-date-separator{text-align:center;color:var(--text-secondary);font-size:12px;padding:12px 0 8px;position:relative}.message-date-separator:before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--border);z-index:0}.message-date-separator:after{content:attr(data-date)}.chat-send-error{padding:4px 16px;color:var(--danger);font-size:12px;background:var(--bg-sidebar);text-align:center}.loading-text{color:var(--text-secondary);font-size:14px}.sync-status{color:var(--primary);font-size:12px;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.back-btn{display:none;background:none;border:none;color:var(--text);font-size:20px;cursor:pointer;padding:8px;border-radius:var(--radius)}.back-btn:hover{background:var(--bg-input)}@media (max-width: 768px){.back-btn{display:block}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@media (max-width: 768px){.sidebar{width:100%;min-width:100%}.chat-main,.chat-layout.has-active-room .sidebar{display:none}.chat-layout.has-active-room .chat-main{display:flex}.shortcuts-hint{display:none}}.reply-preview{border-left:3px solid var(--primary);padding:4px 8px;margin-bottom:4px;background:#ffffff0d;border-radius:4px;cursor:pointer;font-size:12px}.reply-preview-sender{color:var(--primary);font-weight:600;font-size:11px}.reply-preview-body{color:#fff9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-image-link{display:block}.message-image{border-radius:8px;max-width:300px;max-height:300px;object-fit:cover}.message-video{border-radius:8px;max-width:300px}.message-audio{width:100%;max-width:280px}.message-file-link{display:flex;align-items:center;gap:8px;padding:8px;background:#ffffff0d;border-radius:8px;text-decoration:none;color:inherit}.file-icon{font-size:24px}.file-info{display:flex;flex-direction:column}.file-name{color:var(--primary);font-size:13px}.file-size{color:#ffffff80;font-size:11px}.message-reactions{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}.reaction-chip{background:#ffffff14;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:2px 8px;font-size:13px;cursor:pointer;color:inherit}.reaction-chip:hover{background:#ffffff26}.reaction-chip.my-reaction{border-color:var(--primary);background:#25d36626}.typing-indicator{display:flex;align-items:center;gap:8px;padding:4px 16px;color:#ffffff80;font-size:13px}.typing-dots{display:flex;gap:3px}.typing-dots span{width:6px;height:6px;background:#fff6;border-radius:50%;animation:typingBounce 1.2s infinite}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-4px)}}.context-menu{position:fixed;background:var(--bg-sidebar);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:4px 0;min-width:180px;z-index:1000;box-shadow:0 4px 20px #0006}.context-menu button{display:block;width:100%;padding:8px 16px;background:none;border:none;color:#ffffffd9;text-align:left;font-size:14px;cursor:pointer}.context-menu button:hover{background:#ffffff14}.context-menu button.danger{color:#ff5252}.context-menu button.danger:hover{background:#ff52521a}.quick-emojis{display:flex;gap:4px;padding:8px 12px;border-top:1px solid rgba(255,255,255,.1)}.emoji-btn{background:none;border:none;font-size:20px;cursor:pointer;padding:4px;border-radius:4px}.emoji-btn:hover{background:#ffffff1a}.reply-bar{display:flex;align-items:center;padding:8px 16px;background:var(--bg-sidebar);border-top:1px solid rgba(255,255,255,.1)}.reply-bar-content{flex:1;border-left:3px solid var(--primary);padding-left:8px}.reply-bar-label{color:var(--primary);font-size:12px;font-weight:600}.reply-bar-text{color:#fff9;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reply-bar-close{background:none;border:none;color:#ffffff80;font-size:18px;cursor:pointer;padding:4px 8px}.forward-dialog{max-height:60vh}.forward-room-list{max-height:300px;overflow-y:auto}.forward-room-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px;background:none;border:none;color:inherit;cursor:pointer;border-radius:8px;font-size:14px}.forward-room-item:hover{background:#ffffff14}.forward-empty{text-align:center;color:#fff6}.attach-btn{background:none;border:none;font-size:20px;cursor:pointer;padding:4px 8px;color:#ffffff80}.attach-btn:hover{color:#fffc}.file-input-hidden{display:none}.chat-room-subtitle{font-size:12px;color:#ffffff80}.chat-room-subtitle.online,.chat-room-subtitle.typing{color:var(--primary)}.message-edited{color:#ffffff59;font-size:11px;font-style:italic;margin-right:4px}.message.redacted .message-bubble{opacity:.5}.redacted-text{font-style:italic;color:#fff6}.search-btn{background:none;border:none;color:#ffffff80;font-size:18px;cursor:pointer;padding:4px 8px;margin-left:auto}.search-btn:hover{color:#fffc}.search-bar{display:flex;align-items:center;gap:6px;padding:6px 12px;background:var(--bg-sidebar);border-bottom:1px solid rgba(255,255,255,.1)}.search-bar input{flex:1;background:#ffffff14;border:1px solid rgba(255,255,255,.1);border-radius:6px;padding:6px 10px;color:#fff;font-size:14px;outline:none}.search-bar input:focus{border-color:var(--primary)}.search-count{color:#ffffff80;font-size:12px;white-space:nowrap}.search-nav{background:none;border:none;color:#ffffff80;font-size:16px;cursor:pointer;padding:2px 6px;border-radius:4px}.search-nav:hover:not(:disabled){background:#ffffff1a;color:#fff}.search-nav:disabled{opacity:.3;cursor:default}.search-close{background:none;border:none;color:#ffffff80;font-size:16px;cursor:pointer}.search-close:hover{color:#fff}.message-body.search-highlight{background:#ffc83226;border-radius:4px}.settings-dialog{background:var(--bg-sidebar);border-radius:12px;max-width:480px;width:100%;max-height:80vh;overflow-y:auto;margin:auto}.settings-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.1)}.settings-header h2{margin:0;font-size:18px}.dialog-close{background:none;border:none;color:#ffffff80;font-size:20px;cursor:pointer}.settings-tabs{display:flex;border-bottom:1px solid rgba(255,255,255,.1)}.settings-tabs button{flex:1;padding:10px;background:none;border:none;color:#ffffff80;cursor:pointer;font-size:14px}.settings-tabs button.active{color:var(--primary);border-bottom:2px solid var(--primary)}.settings-content{padding:20px}.settings-section{display:flex;flex-direction:column;gap:16px}.settings-avatar{width:64px;height:64px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;color:#fff;margin:0 auto}.settings-username{text-align:center;font-size:18px;font-weight:600}.settings-userid{text-align:center;font-size:13px;color:#fff6}.settings-toggle{display:flex;justify-content:space-between;align-items:center;padding:8px 0}.settings-toggle input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary)}.settings-select-group{display:flex;justify-content:space-between;align-items:center;padding:8px 0}.cooldown-select{background:#ffffff14;border:1px solid rgba(255,255,255,.15);border-radius:6px;padding:6px 10px;color:#fff;font-size:14px}.security-items{display:flex;flex-direction:column;gap:8px}.security-item{padding:6px 0;font-size:14px}.security-item.good{color:#fffc}.security-item.warn{color:#ffb74d}.sessions-list{display:flex;flex-direction:column;gap:6px}.session-item{display:flex;justify-content:space-between;align-items:center;padding:8px;background:#ffffff0d;border-radius:6px}.session-name{font-size:13px}.session-date{font-size:12px;color:#fff6}.sessions-empty{color:#fff6;font-size:13px}.security-tips{padding-left:20px;font-size:13px;color:#fff9}.security-tips li{margin-bottom:6px}.dialog-tabs{display:flex;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:16px}.dialog-tabs button{flex:1;padding:10px;background:none;border:none;color:#ffffff80;cursor:pointer;font-size:14px}.dialog-tabs button.active{color:var(--primary);border-bottom:2px solid var(--primary)}.shortcuts-hint{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;justify-content:center}.shortcut-chip{background:#ffffff14;padding:6px 12px;border-radius:16px;font-size:12px;color:#ffffff80}.room-avatar.group{background:#7c4dff}@supports (padding-top: env(safe-area-inset-top)){.sidebar-header,.chat-room-header{padding-top:calc(12px + env(safe-area-inset-top))}.chat-input-bar{padding-bottom:calc(12px + env(safe-area-inset-bottom))}}