*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #5b5bff;--primary-dark: #4a4aff;--primary-light: #7b7bff;--success-color: #10b981;--danger-color: #ef4444;--warning-color: #f59e0b;--info-color: #3b82f6;--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #f0f2f5;--text-primary: #1f2937;--text-secondary: #6b7280;--border-color: #e5e7eb;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1)}.toast-notification{position:fixed;top:80px;left:50%;transform:translate(-50%);display:flex;align-items:center;gap:14px;padding:16px 28px;border-radius:16px;background:white;box-shadow:0 20px 40px #0000001f,0 8px 16px #00000014,0 0 0 1px #0000000a;z-index:10000;font-size:15px;font-weight:500;min-width:320px;max-width:520px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:2px solid rgba(255,255,255,.5);letter-spacing:.3px}.toast-notification.success{background:linear-gradient(135deg,#10b981 0%,#059669 100%);color:#fff;border-color:#ffffff4d;box-shadow:0 20px 40px #10b9814d,0 8px 16px #10b98133,0 0 0 1px #ffffff1a}.toast-notification.error{background:linear-gradient(135deg,#ef4444 0%,#dc2626 100%);color:#fff;border-color:#ffffff4d;box-shadow:0 20px 40px #ef44444d,0 8px 16px #ef444433,0 0 0 1px #ffffff1a}.toast-notification.warning{background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%);color:#fff;border-color:#ffffff4d;box-shadow:0 20px 40px #f59e0b4d,0 8px 16px #f59e0b33,0 0 0 1px #ffffff1a}.toast-notification.info{background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);color:#fff;border-color:#ffffff4d;box-shadow:0 20px 40px #3b82f64d,0 8px 16px #3b82f633,0 0 0 1px #ffffff1a}.toast-icon{font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.25);flex-shrink:0;box-shadow:0 2px 8px #0000001a}.toast-message{flex:1;line-height:1.6;font-weight:500}.toast-fade-enter-active{animation:toast-slide-in .4s cubic-bezier(.34,1.56,.64,1)}.toast-fade-leave-active{animation:toast-slide-out .25s cubic-bezier(.4,0,1,1)}@keyframes toast-slide-in{0%{opacity:0;transform:translate(-50%) translateY(-30px) scale(.9)}50%{transform:translate(-50%) translateY(5px) scale(1.02)}to{opacity:1;transform:translate(-50%) translateY(0) scale(1)}}@keyframes toast-slide-out{0%{opacity:1;transform:translate(-50%) translateY(0) scale(1)}to{opacity:0;transform:translate(-50%) translateY(-30px) scale(.9)}}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg-secondary);color:var(--text-primary)}.app-container{display:flex;height:100vh;background:var(--bg-primary)}.login-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,rgba(91,91,255,.1) 0%,rgba(16,185,129,.1) 100%);display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.login-box{background:var(--bg-primary);border-radius:16px;padding:48px;width:100%;max-width:420px;box-shadow:0 20px 60px #00000026;animation:slideUp .4s ease-out}.login-header{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:12px}.login-logo{width:40px;height:40px;object-fit:contain}.login-icon{font-size:32px}.login-box h2{font-size:24px;font-weight:700;color:var(--text-primary);text-align:center;letter-spacing:-.3px}.login-subtitle{font-size:13px;color:var(--text-secondary);text-align:center;margin-bottom:28px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;color:var(--text-primary);font-weight:600;font-size:13px}.login-input{width:100%;padding:12px 16px;border:2px solid var(--border-color);border-radius:8px;font-size:14px;font-family:inherit;transition:all .2s;background:var(--bg-primary);color:var(--text-primary)}.login-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #5b5bff1a}.login-btn{width:100%;padding:12px 16px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;margin-top:8px;display:flex;align-items:center;justify-content:center;gap:8px}.login-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px #5b5bff4d}.login-btn:active{transform:translateY(0)}.login-error{margin-top:16px;padding:12px 14px;background:#fee2e2;color:#991b1b;border-radius:8px;font-size:13px;text-align:center;display:flex;align-items:center;justify-content:center;gap:8px;border-left:3px solid #dc2626}.login-tip{margin-top:16px;font-size:12px;color:var(--text-secondary);text-align:center}.sidebar{width:260px;background:linear-gradient(180deg,#ffffff 0%,#fafbfc 100%);border-right:1px solid var(--border-color);display:flex;flex-direction:column;overflow:hidden;box-shadow:1px 0 3px #0000000d}.sidebar-header{padding:16px;border-bottom:1px solid var(--border-color);background:var(--bg-primary)}.brand{display:flex;align-items:center;gap:10px}.brand-logo{width:32px;height:32px;object-fit:contain;flex-shrink:0}.brand-icon{font-size:28px;flex-shrink:0}.brand-text{flex:1;min-width:0}.brand-name{font-size:14px;font-weight:700;color:var(--primary-color);line-height:1.2}.brand-subtitle{font-size:11px;color:var(--text-secondary);font-weight:500}.sidebar-top{padding:16px;border-bottom:1px solid var(--border-color);background:linear-gradient(180deg,#ffffff 0%,#f9fafb 100%)}.user-card{display:flex;align-items:center;gap:12px;margin-bottom:16px;padding:12px 14px;background:linear-gradient(135deg,rgba(91,91,255,.08) 0%,rgba(16,185,129,.08) 100%);border:1px solid rgba(91,91,255,.15);border-radius:10px;transition:all .2s}.user-card:hover{background:linear-gradient(135deg,rgba(91,91,255,.12) 0%,rgba(16,185,129,.12) 100%);border-color:#5b5bff40}.user-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.user-avatar{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);border-radius:8px;overflow:hidden;box-shadow:0 2px 8px #5b5bff33}.avatar-img{width:100%;height:100%;object-fit:cover}.user-details{flex:1;min-width:0}.username{font-size:13px;font-weight:700;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-status{font-size:11px;color:var(--success-color);font-weight:500}.logout-btn{width:32px;height:32px;border:1px solid var(--border-color);background:var(--bg-primary);border-radius:6px;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}.logout-btn:hover{background:#fee2e2;border-color:var(--danger-color);transform:scale(1.05)}.new-chat-btn{width:100%;padding:14px 16px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;border:none;border-radius:10px;cursor:pointer;font-size:13px;font-weight:600;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;transition:all .2s;box-shadow:0 4px 12px #5b5bff33}.new-chat-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #5b5bff4d}.new-chat-btn:active{transform:translateY(0)}.new-chat-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.new-chat-btn:disabled:hover{transform:none;box-shadow:0 4px 12px #5b5bff33}.btn-icon{font-size:20px}.btn-text{font-size:14px;font-weight:700}.btn-desc{font-size:11px;opacity:.9;font-weight:400}.sidebar-nav,.sidebar-nav.full-height{flex:1;overflow-y:auto;padding:12px 0}.nav-section{padding:0 12px}.nav-title{font-size:11px;font-weight:700;color:var(--text-secondary);padding:8px 12px;text-transform:uppercase;letter-spacing:.5px}.nav-items{display:flex;flex-direction:column;gap:4px}.nav-empty{font-size:12px;color:var(--text-secondary);padding:8px 12px}.nav-item{padding:8px 12px;border-radius:6px;font-size:13px;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .2s;position:relative}.nav-item:hover{background:var(--bg-tertiary)}.nav-item.active{background:linear-gradient(135deg,rgba(91,91,255,.1) 0%,rgba(91,91,255,.05) 100%);color:var(--primary-color);font-weight:600}.nav-item.disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.nav-icon{font-size:14px;flex-shrink:0}.nav-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-delete{width:20px;height:20px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:12px;opacity:0;transition:all .2s;flex-shrink:0}.nav-item:hover .nav-delete{opacity:1}.nav-delete:hover{background:#fee2e2;color:var(--danger-color)}.sidebar-bottom{padding:12px;border-top:1px solid var(--border-color);max-height:450px;overflow-y:auto}.settings-section{display:flex;flex-direction:column;gap:12px}.settings-header h3{font-size:13px;font-weight:700;color:var(--text-primary);padding:0 4px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.3px}.form-select,.form-textarea{width:100%;padding:8px 10px;border:1px solid var(--border-color);border-radius:6px;font-size:12px;font-family:inherit;background:var(--bg-primary);color:var(--text-primary);transition:all .2s}.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #5b5bff1a}.form-textarea{resize:vertical;min-height:70px;max-height:100px}.button-group{display:flex;gap:8px}.btn{padding:8px 12px;border:none;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:6px}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #5b5bff4d}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover:not(:disabled){background:var(--border-color)}.btn-danger{background:linear-gradient(135deg,var(--danger-color) 0%,#dc2626 100%);color:#fff}.btn-danger:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #ef44444d}.btn-large{padding:10px 16px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.status-badge{padding:8px 12px;border-radius:6px;font-size:12px;text-align:center;font-weight:600}.status-badge.success{background:#d1fae5;color:#065f46}.main-content{flex:1;display:flex;flex-direction:column;background:var(--bg-secondary)}.dual-chat-container{flex:1;display:flex;gap:0;overflow:hidden}.chat-panel{flex:1;display:flex;flex-direction:column;background:var(--bg-secondary);min-width:0}.chat-panel.left-panel{border-right:1px solid var(--border-color)}.panel-header{padding:12px 20px;border-bottom:1px solid var(--border-color);background:var(--bg-primary);box-shadow:0 1px 3px #0000000d;display:flex;align-items:center;justify-content:space-between;gap:12px}.panel-header h3{font-size:14px;font-weight:700;color:var(--text-primary);flex:1}.icon-btn.small{height:32px;padding:0 10px;font-size:12px}.top-bar{padding:12px 20px;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;background:var(--bg-primary);box-shadow:0 1px 3px #0000000d}.logo-section{display:flex;align-items:center;gap:10px}.top-logo{width:24px;height:24px;object-fit:contain}.logo-icon{font-size:20px}.top-bar-left h1{font-size:16px;font-weight:700;color:var(--text-primary);letter-spacing:-.3px}.top-bar-right{display:flex;gap:8px;align-items:center}.icon-btn{width:36px;height:36px;border:1px solid var(--border-color);background:var(--bg-primary);border-radius:6px;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .2s}.icon-btn:hover{background:var(--bg-tertiary);border-color:var(--primary-color);color:var(--primary-color)}.icon-btn.primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;border:none;display:flex;align-items:center;justify-content:center;gap:6px;padding:0 12px;width:auto;height:36px}.icon-btn.primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #5b5bff4d}.icon-btn.secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color);display:flex;align-items:center;justify-content:center;gap:6px;padding:0 12px;width:auto;height:36px}.icon-btn.secondary:hover{background:var(--border-color)}.icon-btn.danger{background:linear-gradient(135deg,var(--danger-color) 0%,#dc2626 100%);color:#fff;border:none;display:flex;align-items:center;justify-content:center;gap:6px;padding:0 12px;width:auto;height:36px}.icon-btn.danger:hover{transform:translateY(-1px);box-shadow:0 4px 12px #ef44444d}.icon-btn.agent-setup-btn{background:linear-gradient(135deg,#a78bfa 0%,#8b5cf6 50%,#7c3aed 100%);color:#fff;border:none;display:flex;align-items:center;justify-content:center;gap:8px;padding:0 16px;width:auto;height:36px;border-radius:10px;font-weight:600;box-shadow:0 4px 12px #8b5cf640,0 2px 6px #8b5cf626,inset 0 -2px #0000001a;position:relative;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1)}.icon-btn.agent-setup-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.icon-btn.agent-setup-btn:hover:not(:disabled):before{left:100%}.icon-btn.agent-setup-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #8b5cf659,0 3px 10px #8b5cf640,inset 0 -2px #0000001a}.icon-btn.agent-setup-btn:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 8px #8b5cf64d,inset 0 2px 4px #0003}.icon-btn.agent-setup-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.icon-btn.agent-setup-btn .btn-text{font-size:13px;font-weight:600;letter-spacing:.3px}.icon-btn.agent-setup-btn span:first-child{font-size:18px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3));animation:robotPulse 2s ease-in-out infinite;display:inline-block;transition:transform .3s ease}.icon-btn.agent-setup-btn:hover span:first-child{transform:scale(1.15) rotate(5deg);animation:robotBounce .6s ease-in-out}@keyframes robotPulse{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}@keyframes robotBounce{0%,to{transform:scale(1.15) rotate(5deg)}25%{transform:scale(1.2) rotate(-5deg)}50%{transform:scale(1.15) rotate(5deg)}75%{transform:scale(1.2) rotate(-5deg)}}.btn-text{font-size:12px;font-weight:600}.chat-container{flex:1;overflow-y:auto;display:flex;flex-direction:column;padding:0}.welcome-section{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 20px}.welcome-content{text-align:center;max-width:480px}.welcome-icon{font-size:56px;margin-bottom:20px;display:block}.welcome-section h2{font-size:28px;font-weight:700;color:var(--text-primary);margin-bottom:12px;letter-spacing:-.3px}.welcome-section p{font-size:14px;color:var(--text-secondary);margin-bottom:28px}.welcome-tips{display:flex;flex-direction:column;gap:10px}.tip{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-primary);border-radius:8px;border-left:3px solid var(--primary-color);box-shadow:0 1px 3px #0000000d;font-size:13px;color:var(--text-primary)}.tip-icon{font-size:18px;flex-shrink:0}.messages-list{display:flex;flex-direction:column;gap:12px;padding:20px;flex:1}.message{display:flex;gap:10px;animation:slideIn .3s ease-out}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.message-avatar{font-size:20px;flex-shrink:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:6px}.avatar-user{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff}.avatar-ai{background:linear-gradient(135deg,var(--success-color) 0%,#059669 100%);color:#fff}.message-body{max-width:70%;display:flex;flex-direction:column;gap:6px}.message-header{font-size:11px;font-weight:600;color:var(--text-secondary);padding:0 4px}.message-content{padding:10px 14px;border-radius:10px;line-height:1.5;word-break:break-word;white-space:pre-wrap;font-size:13px}.message.user .message-content{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;border-radius:10px 4px 10px 10px}.message.assistant .message-content{background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:4px 10px 10px}.thinking-text{color:var(--text-secondary);font-style:italic;animation:pulse 1.5s ease-in-out infinite}.failed-text{color:var(--danger-color);font-weight:600}.message.failed .message-content{color:var(--danger-color);background:#fee2e2;border-color:#fecaca}.message-side-actions{display:flex;flex-direction:column;gap:8px;margin-left:12px;align-self:flex-start;margin-top:24px}.side-action-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;border:1px solid var(--border-color);border-radius:8px;background:var(--bg-primary);color:var(--text-primary);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}.side-action-btn:hover{border-color:var(--primary-color);background:rgba(91,91,255,.05)}.side-action-btn.continue:hover{border-color:var(--success-color);background:rgba(16,185,129,.05);color:var(--success-color)}.side-action-btn.rewrite:hover{border-color:var(--warning-color);background:rgba(245,158,11,.05);color:var(--warning-color)}.side-action-btn.retry{border-color:var(--danger-color);color:var(--danger-color)}.side-action-btn.retry:hover{border-color:var(--danger-color);background:rgba(239,68,68,.05);color:var(--danger-color)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.message-actions{display:flex;gap:8px;opacity:0;transition:opacity .2s}.message:hover .message-actions{opacity:1}.action-btn{width:28px;height:28px;border:1px solid var(--border-color);background:var(--bg-primary);border-radius:4px;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;transition:all .2s}.action-btn:hover{background:var(--bg-tertiary);border-color:var(--primary-color)}.error-banner{padding:12px 20px;background:#fee2e2;color:#991b1b;border-top:1px solid #fecaca;font-size:14px}.input-area{padding:16px 20px;border-top:1px solid var(--border-color);background:var(--bg-primary);box-shadow:0 -2px 10px #0000000d}.input-container{display:flex;gap:12px;align-items:flex-end}.input-textarea{flex:1;padding:12px 16px;border:1px solid var(--border-color);border-radius:12px;font-size:14px;resize:none;outline:none;transition:border-color .2s,box-shadow .2s;font-family:inherit}.input-textarea:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #5b5bff1a}.input-textarea:disabled{background:var(--bg-tertiary);cursor:not-allowed;opacity:.6}.input-buttons{display:flex;gap:10px;align-items:center}.stop-btn{display:flex;align-items:center;gap:8px;padding:12px 24px;background:linear-gradient(135deg,#ff6b6b 0%,#ee5a6f 50%,#c92a2a 100%);color:#fff;border:none;border-radius:14px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);white-space:nowrap;box-shadow:0 4px 12px #ff6b6b40,0 2px 6px #ff6b6b26,inset 0 -2px #0000001a;position:relative;overflow:hidden}.stop-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.stop-btn:hover:before{left:100%}.stop-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #ff6b6b59,0 3px 10px #ff6b6b40,inset 0 -2px #0000001a}.stop-btn:active{transform:translateY(0);box-shadow:0 2px 8px #ff6b6b4d,inset 0 2px 4px #0003}.continue-btn{display:flex;align-items:center;gap:8px;padding:12px 24px;background:linear-gradient(135deg,#51cf66 0%,#37b24d 50%,#2f9e44 100%);color:#fff;border:none;border-radius:14px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);white-space:nowrap;box-shadow:0 4px 12px #51cf6640,0 2px 6px #51cf6626,inset 0 -2px #0000001a;position:relative;overflow:hidden}.continue-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.continue-btn:hover:not(:disabled):before{left:100%}.continue-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #51cf6659,0 3px 10px #51cf6640,inset 0 -2px #0000001a}.continue-btn:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 8px #51cf664d,inset 0 2px 4px #0003}.continue-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:0 2px 6px #51cf6626,inset 0 -2px #0000001a}.send-btn{display:flex;align-items:center;gap:8px;padding:12px 24px;background:linear-gradient(135deg,#748ffc 0%,#5c7cfa 50%,#4c6ef5 100%);color:#fff;border:none;border-radius:14px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);white-space:nowrap;box-shadow:0 4px 12px #5c7cfa40,0 2px 6px #5c7cfa26,inset 0 -2px #0000001a;position:relative;overflow:hidden}.send-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.send-btn:hover:not(:disabled):before{left:100%}.send-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #5c7cfa59,0 3px 10px #5c7cfa40,inset 0 -2px #0000001a}.send-btn:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 8px #5c7cfa4d,inset 0 2px 4px #0003}.send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:0 2px 6px #5c7cfa26,inset 0 -2px #0000001a}.send-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #5b5bff4d}.send-btn:disabled{opacity:.6;cursor:not-allowed}.input-tips{margin-top:8px;font-size:12px;color:var(--text-secondary);display:flex;justify-content:space-between;align-items:center}.warning-tip{color:var(--warning-color);font-weight:600}.input-section{padding:16px 20px;border-top:1px solid var(--border-color);background:var(--bg-primary);box-shadow:0 -1px 3px #0000000d}.input-wrapper{display:flex;gap:10px;align-items:flex-end}.input-hint{font-size:11px;color:var(--text-secondary);text-align:center;margin-top:10px}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border-color);max-height:200px}.message-body{max-width:85%}.welcome-section h2{font-size:24px}}.chat-container::-webkit-scrollbar,.sidebar-nav::-webkit-scrollbar,.sidebar-bottom::-webkit-scrollbar{width:8px}.chat-container::-webkit-scrollbar-track,.sidebar-nav::-webkit-scrollbar-track,.sidebar-bottom::-webkit-scrollbar-track{background:transparent}.chat-container::-webkit-scrollbar-thumb,.sidebar-nav::-webkit-scrollbar-thumb,.sidebar-bottom::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.chat-container::-webkit-scrollbar-thumb:hover,.sidebar-nav::-webkit-scrollbar-thumb:hover,.sidebar-bottom::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .2s ease-out}.modal-box{background:var(--bg-primary);border-radius:16px;width:100%;max-width:480px;box-shadow:0 20px 60px #0003;animation:slideUp .3s ease-out;overflow:hidden}.modal-box.modal-split{max-width:800px}.modal-box.modal-wide{max-width:1000px}.modal-box.modal-confirm{max-width:400px}.modal-box.modal-confirm .modal-body{padding:24px;text-align:center}.modal-box.modal-confirm .confirm-message{font-size:16px;color:var(--text-primary);line-height:1.6}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border-color);background:linear-gradient(135deg,rgba(91,91,255,.05) 0%,rgba(16,185,129,.05) 100%)}.modal-header h2{font-size:18px;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:8px}.modal-close{width:32px;height:32px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:6px;font-size:16px;display:flex;align-items:center;justify-content:center;transition:all .2s}.modal-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}.modal-content-split{display:flex;min-height:400px}.modal-left,.modal-right{flex:1;display:flex;flex-direction:column}.modal-left{border-right:1px solid var(--border-color)}.modal-section-title{padding:16px 24px 8px;font-size:14px;font-weight:700;color:var(--text-primary);background:var(--bg-secondary)}.modal-body{padding:16px 24px 24px;display:flex;flex-direction:column;gap:16px;flex:1;overflow-y:auto}.modal-body .form-group label{font-size:13px;font-weight:600;color:var(--text-primary);text-transform:none;letter-spacing:0;margin-bottom:8px}.info-banner{padding:12px 14px;background:#dbeafe;color:#1e40af;border-radius:8px;font-size:12px;line-height:1.5;border-left:3px solid #3b82f6}.modal-body .form-input{width:100%;padding:10px 12px;border:2px solid var(--border-color);border-radius:8px;font-size:14px;font-family:inherit;background:var(--bg-primary);color:var(--text-primary);transition:all .2s}.modal-body .form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #5b5bff1a}.modal-body .form-select{padding:10px 12px;font-size:14px;border:2px solid var(--border-color);border-radius:8px}.modal-body .form-select:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #5b5bff1a}.modal-body .form-textarea{padding:10px 12px;font-size:14px;border:2px solid var(--border-color);border-radius:8px;min-height:80px;max-height:120px}.modal-body .form-textarea:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #5b5bff1a}.label-hint{font-weight:400;color:var(--text-secondary);font-size:12px}.style-list{display:flex;flex-direction:column;gap:8px;max-height:180px;overflow-y:auto}.style-item{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--bg-secondary);border-radius:8px;border:1px solid var(--border-color)}.style-info{display:flex;align-items:center;gap:8px}.style-name{font-size:13px;font-weight:600;color:var(--text-primary)}.style-badge{font-size:10px;padding:2px 6px;border-radius:4px;font-weight:600}.style-badge.builtin{background:#dbeafe;color:#1d4ed8}.style-badge.custom{background:#d1fae5;color:#065f46}.style-actions{display:flex;gap:4px}.style-btn{width:28px;height:28px;border:none;background:transparent;cursor:pointer;border-radius:4px;font-size:14px;display:flex;align-items:center;justify-content:center;transition:all .2s}.style-btn.view:hover{background:#dbeafe}.style-btn.delete:hover{background:#fee2e2}.add-style-section{margin-top:12px;padding-top:12px;border-top:1px solid var(--border-color)}.prompt-history-list{display:flex;flex-direction:column;gap:8px;max-height:320px;overflow-y:auto}.prompt-history-item{padding:12px;background:var(--bg-secondary);border-radius:8px;border:1px solid var(--border-color);cursor:pointer;transition:all .2s}.prompt-history-item:hover{border-color:var(--primary-color);background:rgba(91,91,255,.05)}.prompt-preview{font-size:13px;color:var(--text-primary);line-height:1.4;margin-bottom:8px}.prompt-meta{display:flex;align-items:center;justify-content:space-between}.prompt-time{font-size:11px;color:var(--text-secondary)}.prompt-delete{width:20px;height:20px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:4px;font-size:12px;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .2s}.prompt-history-item:hover .prompt-delete{opacity:1}.prompt-delete:hover{background:#fee2e2;color:var(--danger-color)}.prompt-empty{text-align:center;padding:40px 20px;color:var(--text-secondary);font-size:13px}.btn-small{padding:8px 12px;font-size:12px}.modal-footer{display:flex;justify-content:flex-end;gap:12px;padding:16px 24px;border-top:1px solid var(--border-color);background:var(--bg-secondary)}.modal-footer .btn{padding:10px 20px;font-size:14px}.modal-footer .btn-primary{display:flex;align-items:center;gap:8px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.nav-edit-input{flex:1;padding:4px 8px;border:1px solid var(--primary-color);border-radius:4px;font-size:13px;font-family:inherit;background:var(--bg-primary);color:var(--text-primary);outline:none;min-width:0}.nav-edit-input:focus{box-shadow:0 0 0 2px #5b5bff1a}.nav-actions{display:flex;gap:4px;opacity:0;transition:opacity .2s;flex-shrink:0}.nav-item:hover .nav-actions{opacity:1}.nav-edit{width:20px;height:20px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:12px;transition:all .2s}.nav-edit:hover{background:#dbeafe;color:var(--primary-color)}.input-buttons{display:flex;flex-direction:column;gap:8px}.stop-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;background:linear-gradient(135deg,var(--danger-color) 0%,#dc2626 100%);color:#fff;border:none;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}.stop-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #ef44444d}.panel-title-section{display:flex;align-items:center;gap:20px;flex:1}.panel-title-section h3{margin:0;font-size:18px;font-weight:600;color:var(--text-primary)}.model-selector{display:flex;align-items:center;gap:8px}.model-selector label{font-size:14px;font-weight:500;color:var(--text-secondary);white-space:nowrap}.model-select{padding:6px 12px;border:2px solid var(--border-color);border-radius:8px;background:var(--bg-primary);color:var(--text-primary);font-size:13px;font-weight:500;min-width:160px;cursor:pointer;transition:all .2s ease}.model-select:hover{border-color:var(--primary-light);background:var(--bg-secondary)}.model-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #5b5bff1a}.model-select:disabled{opacity:.6;cursor:not-allowed;background:var(--bg-tertiary)}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary);gap:16px}.panel-actions{display:flex;align-items:center;gap:8px}@media (max-width: 768px){.panel-title-section{flex-direction:column;align-items:flex-start;gap:12px}.model-selector{width:100%}.model-select{min-width:140px}}.top-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:var(--bg-primary);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.top-bar-left{display:flex;align-items:center}.top-bar-right{display:flex;align-items:center;gap:16px}.logo-section h1{font-size:20px;font-weight:700;color:var(--text-primary);margin:0}.global-model-selector{display:flex;align-items:center;gap:12px;padding:8px 16px;background:var(--bg-secondary);border-radius:12px;border:1px solid var(--border-color)}.global-model-selector label{font-size:14px;font-weight:600;color:var(--text-primary);white-space:nowrap}.global-model-select{padding:8px 16px;border:2px solid var(--border-color);border-radius:8px;background:var(--bg-primary);color:var(--text-primary);font-size:14px;font-weight:500;min-width:180px;cursor:pointer;transition:all .2s ease}.global-model-select:hover{border-color:var(--primary-light);background:var(--bg-secondary)}.global-model-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #5b5bff1a}.global-model-select:disabled{opacity:.6;cursor:not-allowed;background:var(--bg-tertiary)}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-color);background:var(--bg-secondary)}.panel-header h3{margin:0;font-size:18px;font-weight:600;color:var(--text-primary)}@media (max-width: 768px){.top-bar{flex-direction:column;gap:16px;align-items:flex-start}.top-bar-right{width:100%;justify-content:flex-end}.global-model-selector{width:100%;justify-content:space-between}.global-model-select{min-width:160px}}