.chat-app{display:flex;height:100vh;width:100vw;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border-light);padding:20px 16px;display:flex;flex-direction:column;gap:16px;transition:transform var(--transition);z-index:100;position:fixed;top:0;left:0;height:100vh}.sidebar.collapsed{transform:translate(-100%)}.sidebar-brand{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--border-light)}.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,#4f6ef7,#7c3aed);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:17px;box-shadow:0 3px 14px #4f6ef74d;letter-spacing:-.5px;transform:rotate(0);position:relative;overflow:hidden}.logo-icon:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(255,255,255,.2) 0%,transparent 50%);border-radius:inherit}.sidebar-brand h1{font-size:17px;font-weight:600}.badge{font-size:10px;background:var(--bg-input);color:var(--text-secondary);padding:2px 10px;border-radius:40px;margin-left:auto}.history-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:2px}.history-item{padding:9px 14px;border-radius:10px;font-size:14px;color:var(--text-secondary);cursor:pointer}.history-item:hover{background:var(--bg-input)}.empty-hint{text-align:center;color:var(--text-muted);padding:40px 0;font-size:13px}.sidebar-footer{border-top:1px solid var(--border-light);padding-top:14px}.footer-actions{display:flex;gap:8px}.footer-actions button{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:8px;border:none;background:transparent;border-radius:8px;font-size:13px;color:var(--text-secondary);cursor:pointer}.footer-actions button:hover{background:var(--bg-input);color:var(--text-primary)}.sidebar-toggle{position:fixed;top:20px;left:20px;z-index:50;background:var(--bg-card);border:1px solid var(--border-light);border-radius:10px;padding:8px 12px;cursor:pointer;font-size:18px;display:flex;align-items:center;color:var(--text-secondary)}.sidebar:not(.collapsed)~.sidebar-toggle{display:none}.main-panel{flex:1;display:flex;flex-direction:column;padding:20px 28px 24px;height:100vh;margin-left:var(--sidebar-width);overflow:hidden}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:8px 0 14px;flex-shrink:0}.chat-header h2{font-size:16px;font-weight:500;color:var(--text-secondary)}.status{font-size:12px;color:var(--color-success);background:#e6f9f1;padding:2px 12px;border-radius:40px}.chat-messages{flex:1;overflow-y:auto;padding:16px 0 24px;display:flex;flex-direction:column;gap:18px}.welcome{text-align:center;padding:80px 20px 40px;display:flex;flex-direction:column;align-items:center;gap:12px}.welcome-icon{font-size:40px;opacity:.6}.welcome h2{font-size:22px;font-weight:600}.welcome-hint{color:var(--text-muted);font-size:14px}.suggestion-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:12px}.suggestion-chips button{padding:8px 16px;border-radius:40px;border:1px solid var(--border-light);background:#fff;font-size:13px;cursor:pointer;color:var(--text-secondary)}.suggestion-chips button:hover{border-color:var(--color-accent);color:var(--color-accent)}.message{display:flex;gap:14px;max-width:85%;animation:fadeInUp .35s ease}.message.user{align-self:flex-end;flex-direction:row-reverse}.avatar{width:36px;height:36px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;position:relative;box-shadow:0 2px 8px #0000000f}.message.assistant .avatar{background:linear-gradient(135deg,#4f6ef7,#7c3aed);color:#fff;box-shadow:0 3px 12px #4f6ef740}.message.assistant .avatar:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;background:linear-gradient(135deg,rgba(255,255,255,.25) 0%,transparent 50%)}.message.user .avatar{background:linear-gradient(135deg,#f59e0b,#ef4444);color:#fff;box-shadow:0 3px 12px #f59e0b40}.message.user .avatar:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;background:linear-gradient(135deg,rgba(255,255,255,.2) 0%,transparent 50%)}.bubble{padding:14px 18px;border-radius:16px;font-size:15px;line-height:1.7;word-break:break-word}.message.assistant .bubble{background:#eef2f7;border-bottom-left-radius:4px}.message.user .bubble{background:#dbeafe;border-bottom-right-radius:4px}.feedback{display:flex;gap:6px;margin-top:8px;opacity:.5}.feedback:hover{opacity:1}.feedback button{background:transparent;border:none;font-size:16px;cursor:pointer;padding:2px 6px;border-radius:6px}.feedback button:hover{background:var(--bg-input)}.chat-input-area{flex-shrink:0;border-top:1px solid var(--border-light);padding-top:16px}.input-wrapper{display:flex;gap:12px;align-items:center}.input-wrapper input{flex:1;padding:12px 20px;border-radius:40px;border:2px solid transparent;background:var(--bg-input);font-size:15px;outline:none;font-family:inherit}.input-wrapper input:focus{border-color:var(--color-accent);background:var(--bg-card)}.input-wrapper button{background:var(--color-accent);border:none;border-radius:40px;padding:10px 24px;color:#fff;font-weight:500;cursor:pointer;font-size:14px}.input-wrapper button:hover{background:var(--color-accent-hover)}.input-wrapper button:disabled{opacity:.5;cursor:not-allowed}.typing-dots{display:flex;gap:4px;padding:4px 0}.typing-dots span{width:8px;height:8px;background:var(--color-accent);border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.typing-dots span:nth-child(1){animation-delay:-.32s}.typing-dots span:nth-child(2){animation-delay:-.16s}.admin-layout{height:100vh;display:flex;flex-direction:column;background:var(--bg-page)}.admin-header{background:#fff;border-bottom:1px solid var(--border-light);padding:12px 24px;display:flex;align-items:center;flex-shrink:0}.header-left{display:flex;align-items:center;gap:16px}.header-left h1{font-size:18px;font-weight:600}.back-btn{background:none;border:none;font-size:14px;color:var(--color-accent);cursor:pointer;padding:6px 12px;border-radius:8px}.back-btn:hover{background:var(--bg-input)}.admin-body{flex:1;display:flex;overflow:hidden}.admin-nav{width:200px;background:#fff;border-right:1px solid var(--border-light);padding:20px 12px;display:flex;flex-direction:column;gap:2px;flex-shrink:0}.nav-item{padding:10px 14px;border-radius:10px;font-size:14px;font-weight:500;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;gap:10px;transition:all .2s}.nav-item:hover{background:var(--bg-input)}.nav-item.active{background:#eef2ff;color:var(--color-accent)}.admin-content{flex:1;padding:24px;overflow-y:auto}.page-title{font-size:20px;font-weight:600}.page-sub{font-size:14px;color:var(--text-muted);margin-bottom:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.stat-card{background:#fff;border:1px solid var(--border-light);border-radius:14px;padding:20px;display:flex;align-items:center;gap:16px}.stat-dot{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;flex-shrink:0}.stat-label{font-size:13px;color:var(--text-muted)}.stat-value{font-size:28px;font-weight:600;margin-top:4px}.search-bar{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}.search-bar input{flex:1;min-width:200px;padding:8px 16px;border-radius:40px;border:1px solid var(--border-light);background:var(--bg-input);font-size:14px;outline:none;font-family:inherit}.search-bar input:focus{border-color:var(--color-accent);background:#fff}.search-bar select{padding:8px 16px;border-radius:40px;border:1px solid var(--border-light);background:#fff;font-size:14px;outline:none}.search-bar button{padding:8px 20px;border-radius:40px;border:none;background:var(--color-accent);color:#fff;font-size:14px;cursor:pointer}.search-bar button:hover{background:var(--color-accent-hover)}.card{background:#fff;border:1px solid var(--border-light);border-radius:14px;padding:20px;margin-bottom:16px;box-shadow:0 8px 30px #0000000a}.card-header{font-size:15px;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border-light)}.chunk-card{display:flex;gap:16px;align-items:flex-start;padding:16px 20px;border:1px solid var(--border-light);border-radius:14px;background:#fff;margin-bottom:12px}.chunk-card:hover{border-color:#c8d0d8}.chunk-content{flex:1;min-width:0}.chunk-text{font-size:14px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.chunk-meta{display:flex;gap:12px;margin-top:6px;font-size:12px;color:var(--text-muted);flex-wrap:wrap;align-items:center}.chunk-controls{display:flex;flex-direction:column;gap:8px;align-items:flex-end;min-width:220px}.chunk-controls .weight-row{display:flex;align-items:center;gap:8px;width:100%}.chunk-controls .weight-row label{font-size:12px;color:var(--text-muted);white-space:nowrap}.chunk-controls .weight-row input[type=range]{flex:1;accent-color:var(--color-accent)}.chunk-controls .weight-value{font-weight:600;min-width:36px;text-align:center;color:var(--color-accent)}.chunk-controls .actions-row{display:flex;gap:8px;align-items:center;width:100%;justify-content:flex-end}.table-wrap{background:#fff;border:1px solid var(--border-light);border-radius:14px;overflow:hidden}.table-wrap table{width:100%;border-collapse:collapse;font-size:14px}.table-wrap th{text-align:left;padding:12px 16px;border-bottom:2px solid var(--border-light);font-weight:600;color:var(--text-secondary)}.table-wrap td{padding:12px 16px;border-bottom:1px solid var(--border-light)}.tag{display:inline-block;padding:2px 10px;border-radius:40px;font-size:12px;font-weight:500}.tag-success{background:#e6f9f1;color:var(--color-success)}.tag-info{background:#f0f0f0;color:var(--text-muted)}.tag-primary{background:#eef2f7;color:var(--color-accent)}.pagination{display:flex;justify-content:center;gap:8px;margin-top:20px}.pagination button{padding:6px 14px;border:1px solid var(--border-light);border-radius:8px;background:#fff;cursor:pointer}.pagination button:hover{background:var(--bg-input)}.pagination button:disabled{opacity:.4;cursor:not-allowed}.empty{text-align:center;padding:40px;color:var(--text-muted)}@keyframes shimmer{0%{background-position:-200px 0}to{background-position:200px 0}}.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e4e7ec 37%,#f0f0f0 63%);background-size:400px 100%;animation:shimmer 1.4s ease-in-out infinite;border-radius:6px}.skeleton-card{background:#fff;border:1px solid var(--border-light);border-radius:14px;padding:20px;margin-bottom:12px}.skeleton-row{display:flex;gap:16px;align-items:center;width:100%}.skeleton-table-row td{padding:16px}.skeleton-table-row td>div{height:18px}*{margin:0;padding:0;box-sizing:border-box}:root{--bg-page: #f6f8fa;--bg-card: #ffffff;--bg-sidebar: #ffffff;--bg-input: #f0f2f5;--bg-hover: #f0f2f5;--text-primary: #1a1a2e;--text-secondary: #5b5b6b;--text-muted: #8e8ea0;--border-light: #eaedf2;--radius-card: 20px;--radius-btn: 40px;--color-accent: #4f6ef7;--color-accent-hover: #3b5de7;--color-success: #22a67e;--sidebar-width: 280px;--transition: .25s cubic-bezier(.25, .46, .45, .94)}html,body,#root,.app{height:100%;width:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-page);color:var(--text-primary)}button{font-family:inherit}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}