:root{--bg-primary: #FFFFFF;--bg-secondary: #F9F9F9;--bg-tertiary: #F6F8FF;--bg-hover: #E8ECFF;--bg-message-user: #F6F8FF;--bg-message-assistant: #FFFFFF;--text-primary: #000000;--text-secondary: #767B87;--text-muted: #9A9FAB;--accent: #011FBB;--accent-hover: #4C69FF;--accent-light: rgba(1, 31, 187, .1);--accent-gradient: linear-gradient(45deg, #011FBB 30%, #4C69FF 70%, #01A6C7 90%);--border-color: #C8CACF;--border-light: #E5E7EB;--error: #ef4444;--warning: #f59e0b;--success: #10b981;--dialog-width: 550px;--dialog-width-expanded: calc(100vw - 80px) ;--dialog-height: 555px;--dialog-height-expanded: calc(100vh - 80px) ;--max-message-width: 768px;--input-max-height: 200px;--transition-fast: .15s ease;--transition-normal: .3s ease;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .15);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .2)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden;margin:0;padding:0}body{font-family:Sora,Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.6;color:var(--text-primary);background:var(--bg-secondary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;display:flex;align-items:center;justify-content:center}.widget-dialog{position:relative;width:var(--dialog-width);height:var(--dialog-height);max-width:90vw;max-height:90vh;background:var(--bg-primary);border-radius:11px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden;transition:width var(--transition-normal),height var(--transition-normal),max-width var(--transition-normal),max-height var(--transition-normal)}.widget-dialog.expanded{width:var(--dialog-width-expanded);height:var(--dialog-height-expanded);max-width:calc(100vw - 40px);max-height:calc(100vh - 40px)}.dialog-header{background:var(--accent-gradient);color:#fff;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.header-left{display:flex;align-items:center;gap:8px}.header-left svg{width:20px;height:20px;flex-shrink:0}.header-title{font-size:17px;font-weight:600;font-family:Sora,sans-serif}.new-chat-btn-header{display:flex;align-items:center;gap:6px;background:#fff;color:var(--accent);border:none;border-radius:100px;padding:6px 12px;font-size:12px;font-weight:600;cursor:pointer;margin-left:16px;transition:all var(--transition-fast)}.new-chat-btn-header svg{width:15px;height:15px}.new-chat-btn-header:hover{transform:translateY(-1px);box-shadow:0 2px 8px #ffffff4d}.header-right{display:flex;gap:4px}.icon-btn{background:transparent;border:none;color:#fff;width:32px;height:32px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition-fast)}.icon-btn:hover{background:#ffffff26}.icon-btn svg{width:20px;height:20px}.session-info-panel{background:var(--bg-tertiary);border-bottom:1px solid var(--border-light);padding:12px 20px;flex-shrink:0}.session-info-item{display:flex;align-items:center;gap:8px;margin-bottom:8px}.session-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.session-id{font-family:SF Mono,Monaco,Courier New,monospace;font-size:11px;color:var(--text-secondary);flex:1;word-break:break-all}.copy-btn-inline{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:4px;transition:all var(--transition-fast)}.copy-btn-inline:hover{background:var(--bg-hover);color:var(--accent)}.connection-status{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%;transition:background var(--transition-normal)}.status-dot.connected{background:var(--success);box-shadow:0 0 8px #10b98166}.status-dot.disconnected{background:var(--error)}.status-dot.connecting{background:var(--accent);animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.2)}}.chat-main{flex:1;display:flex;flex-direction:column;min-height:0;overflow:hidden}.messages-container{flex:1;overflow-y:auto;overflow-x:hidden;scroll-behavior:smooth;min-height:0}.messages-wrapper{max-width:var(--max-message-width);margin:0 auto;padding:24px 16px}.welcome-message{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 20px;min-height:400px}.welcome-icon{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:var(--accent-gradient);border-radius:20px;margin-bottom:24px;color:var(--bg-primary);box-shadow:0 4px 16px #011fbb33}.welcome-message h2{font-size:24px;font-weight:600;color:var(--text-primary);margin-bottom:12px;font-family:Sora,sans-serif}.welcome-message p{font-size:15px;color:var(--text-secondary);max-width:400px}.message{display:flex;gap:16px;padding:24px 0;animation:fadeIn .3s ease}.message+.message{border-top:1px solid var(--border-light)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-avatar{width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:14px;font-weight:600}.message.user .message-avatar{background:var(--accent-gradient);color:#fff;box-shadow:0 2px 4px #011fbb33}.message.assistant .message-avatar{background:var(--bg-tertiary);color:var(--accent);border:1px solid var(--border-light)}.message-content{flex:1;min-width:0}.message-role{font-size:13px;font-weight:600;color:var(--text-primary);margin-bottom:8px;font-family:Sora,sans-serif}.message-text{color:var(--text-primary);font-size:15px;line-height:1.7;word-wrap:break-word}.message-text p{margin-bottom:12px}.message-text p:last-child{margin-bottom:0}.message-text pre{background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:8px;padding:16px;overflow-x:auto;margin:12px 0}.message-text code{font-family:SF Mono,Monaco,Courier New,monospace;font-size:13px}.message-text p code{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-size:13px;border:1px solid var(--border-light)}.typing-indicator{display:flex;gap:4px;padding:8px 0}.typing-indicator span{width:8px;height:8px;background:var(--accent);border-radius:50%;animation:typing 1.4s infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-8px);opacity:1}}.message-time{font-size:11px;color:var(--text-muted);margin-top:8px}.input-area{padding:16px 24px 24px;background:var(--bg-primary)}.input-container{max-width:var(--max-message-width);margin:0 auto;display:flex;align-items:center;gap:12px;background:var(--bg-primary);border:2px solid var(--border-light);border-radius:40px;padding:12px 16px;transition:border-color var(--transition-fast),box-shadow var(--transition-fast);box-shadow:0 2px 8px #0000000d}.input-container:focus-within{border-color:var(--accent);box-shadow:0 4px 12px #011fbb26}.input-container textarea{flex:1;background:transparent;border:none;outline:none;color:var(--text-primary);font-family:inherit;font-size:15px;line-height:1.5;resize:none;max-height:var(--input-max-height);min-height:24px}.input-container textarea::placeholder{color:var(--text-muted)}.send-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--accent-gradient);border:none;border-radius:50%;color:#fff;cursor:pointer;transition:all var(--transition-fast);flex-shrink:0;box-shadow:0 2px 4px #011fbb33}.send-btn:hover:not(:disabled){transform:scale(1.1);box-shadow:0 4px 8px #011fbb4d}.send-btn:disabled{background:var(--bg-hover);color:var(--text-muted);cursor:not-allowed;box-shadow:none}.input-hint{max-width:var(--max-message-width);margin:8px auto 0;font-size:11px;color:var(--text-muted);text-align:center;font-style:italic}.input-hint kbd{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-family:inherit;font-size:11px}.toast-container{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:8px;z-index:1000}.toast{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-primary);border:1px solid var(--border-light);border-radius:8px;box-shadow:0 4px 16px #0000001a;animation:slideIn .3s ease;max-width:400px}@keyframes slideIn{0%{opacity:0;transform:translate(100px)}to{opacity:1;transform:translate(0)}}.toast.success{border-color:var(--success);background:linear-gradient(to right,rgba(16,185,129,.05),var(--bg-primary))}.toast.error{border-color:var(--error);background:linear-gradient(to right,rgba(239,68,68,.05),var(--bg-primary))}.toast.warning{border-color:var(--warning);background:linear-gradient(to right,rgba(245,158,11,.05),var(--bg-primary))}.toast-message{font-size:14px;color:var(--text-primary)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}@media(max-width:768px){.widget-dialog{width:100vw;height:100vh;border-radius:0}.widget-dialog.expanded{width:100vw;height:100vh}.messages-wrapper{padding:16px}.input-area{padding:12px 16px 16px}.input-container{border-radius:24px;padding:10px 12px}.message{padding:16px 0}.message-avatar{width:28px;height:28px;font-size:12px}.welcome-message{padding:40px 20px;min-height:300px}.welcome-icon{width:60px;height:60px}.welcome-message h2{font-size:20px}.welcome-message p{font-size:14px}.new-chat-btn-header span{display:none}}.message.loading .message-text{display:flex;align-items:center;gap:8px}.loading-spinner{width:16px;height:16px;border:2px solid var(--border-light);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.message.error .message-text{color:var(--error);background:linear-gradient(to right,rgba(239,68,68,.05),transparent);padding:12px;border-radius:8px;border-left:3px solid var(--error)}.message-text ul,.message-text ol{margin:12px 0;padding-left:24px}.message-text li{margin-bottom:6px}.message-text li:last-child{margin-bottom:0}.message-text table{width:100%;border-collapse:collapse;margin:12px 0}.message-text th,.message-text td{padding:8px 12px;border:1px solid var(--border-light);text-align:left}.message-text th{background:var(--bg-tertiary);font-weight:600;color:var(--accent)}.message-text a{color:var(--accent);text-decoration:none}.message-text a:hover{text-decoration:underline}.message-text blockquote{border-left:3px solid var(--accent);margin:12px 0;color:var(--text-secondary);background:var(--bg-tertiary);padding:12px 16px;border-radius:0 8px 8px 0}.message-images{display:flex;flex-direction:column;gap:16px;margin-top:16px;margin-bottom:8px}.message-image-container{display:flex;flex-direction:column;gap:8px;background:var(--bg-tertiary);border-radius:12px;padding:12px;border:1px solid var(--border-light)}.message-image{max-width:100%;height:auto;border-radius:8px;cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.message-image:hover{transform:scale(1.02);box-shadow:var(--shadow-md)}.image-caption{font-size:12px;color:var(--text-secondary);padding:4px 8px;background:var(--bg-secondary);border-radius:6px;line-height:1.4}.image-modal-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:10000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.image-modal-content{position:relative;max-width:90vw;max-height:90vh;display:flex;flex-direction:column;align-items:center;gap:16px}.image-modal-img-container{position:relative;display:flex;align-items:center;justify-content:center}.image-modal-img{max-width:100%;max-height:80vh;object-fit:contain;border-radius:8px;box-shadow:0 4px 24px #0000004d}.image-modal-close{position:absolute;top:-40px;right:0;width:36px;height:36px;border:none;background:#fff3;color:#fff;font-size:24px;line-height:1;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition-fast)}.image-modal-close:hover{background:#ffffff4d}.image-modal-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border:none;background:#fff3;color:#fff;font-size:36px;line-height:1;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background var(--transition-fast),transform var(--transition-fast);z-index:10}.image-modal-nav:hover{background:#ffffff4d;transform:translateY(-50%) scale(1.1)}.image-modal-prev{left:-60px}.image-modal-next{right:-60px}.image-modal-counter{color:#fff;font-size:14px;font-weight:500;padding:8px 16px;background:#00000080;border-radius:20px}.image-modal-caption{color:#fff;font-size:14px;text-align:center;max-width:600px;padding:12px 16px;background:#00000080;border-radius:8px}@media(max-width:768px){.image-modal-nav{width:40px;height:40px;font-size:28px}.image-modal-prev{left:10px}.image-modal-next{right:10px}}