@media (width<=768px){.navbar-nav{border-bottom:1px solid var(--border-light);padding:var(--spacing-lg);gap:var(--spacing-xs);box-shadow:var(--shadow-md);background:#fff;flex-direction:column;display:none;position:absolute;top:72px;left:0;right:0}.navbar-nav.active,.navbar-toggle{display:flex}}:root{--bg-primary:#faf8ff;--bg-secondary:#fff;--bg-tertiary:#f5f3ff;--bg-card:#ffffffe6;--bg-glass:#ffffffb3;--primary:#7c3aed;--primary-light:#a78bfa;--primary-dark:#5b21b6;--primary-glow:#7c3aed26;--primary-soft:#7c3aed14;--gradient-primary:linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);--gradient-hero:linear-gradient(135deg, #f5f3ff 0%, #ede9fe 50%, #e0e7ff 100%);--gradient-text:linear-gradient(90deg, #7c3aed, #a78bfa);--gradient-card:linear-gradient(145deg, #fffffff2 0%, #f5f3ffe6 100%);--gradient-bg:radial-gradient(ellipse at top, #f5f3ff 0%, #faf8ff 50%, #fff 100%);--text-primary:#1f2937;--text-secondary:#6b7280;--text-muted:#9ca3af;--border:#7c3aed26;--border-light:#7c3aed14;--shadow-sm:0 1px 3px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 30px #0000001a;--shadow-glow:0 0 60px #7c3aed1a;--shadow-card:0 4px 20px #7c3aed14;--spacing-xs:.25rem;--spacing-sm:.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--spacing-3xl:4rem;--spacing-4xl:6rem;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-2xl:32px;--radius-full:9999px;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.4s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;background:#faf8ff}#bgCanvas{z-index:0;pointer-events:none;width:100%;height:100%;position:fixed;top:0;left:0}body{color:var(--text-primary);background:0 0;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,Roboto,sans-serif;line-height:1.7;overflow-x:hidden}body:before{display:none}@keyframes float{0%,to{transform:translate(0)rotate(0)}50%{transform:translate(-2%,-2%)rotate(1deg)}}a{color:var(--primary);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--primary-dark)}img{max-width:100%;height:auto}.container{max-width:1200px;padding:0 var(--spacing-xl);z-index:1;margin:0 auto;position:relative}.section{padding:var(--spacing-4xl) 0}.section-title{text-align:center;margin-bottom:var(--spacing-3xl);color:var(--text-primary);font-size:2rem;font-weight:700;position:relative}.section-title:after{content:"";background:var(--gradient-primary);border-radius:var(--radius-full);width:60px;height:4px;position:absolute;bottom:-12px;left:50%;transform:translate(-50%)}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-sm);background:#ffffffd9;position:fixed;top:0;left:0;right:0}.navbar .container{justify-content:space-between;align-items:center;height:72px;display:flex}.navbar-brand{color:var(--text-primary);align-items:center;gap:var(--spacing-sm);font-size:1.5rem;font-weight:700;display:flex}.navbar-brand .logo{background:var(--gradient-primary);border-radius:var(--radius-md);color:#fff;justify-content:center;align-items:center;width:40px;height:40px;font-size:1.25rem;display:flex;box-shadow:0 4px 12px #7c3aed4d}.navbar-brand:hover{color:var(--primary)}.navbar-nav{align-items:center;gap:var(--spacing-xs);list-style:none;display:flex}.navbar-nav a{color:var(--text-secondary);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);transition:all var(--transition-fast);font-size:1.05rem;font-weight:500}.navbar-nav a:hover{color:var(--primary);background:var(--primary-soft)}.navbar-nav a.active{color:var(--primary);background:var(--primary-soft);font-weight:600}.navbar-toggle{cursor:pointer;padding:var(--spacing-sm);flex-direction:column;gap:5px;display:none}.navbar-toggle span{background:var(--text-primary);width:24px;height:2px;transition:all var(--transition-fast);border-radius:2px}main{z-index:1;padding-top:72px;position:relative}.hero{min-height:calc(100vh - 72px);padding:var(--spacing-3xl) 0;background:0 0;align-items:center;display:flex;position:relative;overflow:hidden}.hero:before{display:none}.hero-content{gap:var(--spacing-4xl);z-index:1;grid-template-columns:1fr 1fr;align-items:center;display:grid;position:relative}.hero-text{max-width:560px}.hero-badge{align-items:center;gap:var(--spacing-sm);padding:var(--spacing-xs) var(--spacing-md);background:var(--primary-soft);border:1px solid var(--border);border-radius:var(--radius-full);color:var(--primary);margin-bottom:var(--spacing-xl);font-size:.9rem;font-weight:500;display:inline-flex}.hero-text h1{margin-bottom:var(--spacing-lg);letter-spacing:-.02em;color:var(--text-primary);font-size:3.5rem;font-weight:800;line-height:1.15}.hero-text h1 .highlight{background:var(--gradient-text);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.hero-text .subtitle{color:var(--text-secondary);margin-bottom:var(--spacing-2xl);font-size:1.25rem;line-height:1.8}.hero-buttons{gap:var(--spacing-md);flex-wrap:wrap;display:flex}.hero-image{justify-content:center;align-items:center;display:flex;position:relative}.hero-avatar{border-radius:var(--radius-2xl);width:320px;height:320px;box-shadow:var(--shadow-lg), var(--shadow-glow);z-index:1;object-fit:cover;border:4px solid #fff;position:relative}.hero-image:before{content:"";background:var(--gradient-primary);opacity:.1;border-radius:var(--radius-2xl);z-index:0;width:380px;height:380px;position:absolute;transform:rotate(6deg)}.hero-image:after{content:"";background:var(--primary-light);opacity:.15;border-radius:var(--radius-2xl);z-index:0;width:340px;height:340px;position:absolute;transform:rotate(-3deg)}.btn{justify-content:center;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-xl);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-normal);border:none;font-size:.95rem;font-weight:600;display:inline-flex;position:relative;overflow:hidden}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:0 4px 16px #7c3aed59}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px #7c3aed73}.btn-primary:before{content:"";background:linear-gradient(90deg,#0000,#ffffff40,#0000);transition:transform .6s;position:absolute;inset:0;transform:translate(-100%)}.btn-primary:hover:before{transform:translate(100%)}.btn-secondary{color:var(--text-primary);border:1px solid var(--border);box-shadow:var(--shadow-sm);background:#fff}.btn-secondary:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-md)}.btn-outline{color:var(--primary);border:1.5px solid var(--primary);background:0 0}.btn-outline:hover{background:var(--primary-soft)}.btn-lg{padding:var(--spacing-lg) var(--spacing-2xl);border-radius:var(--radius-lg);font-size:1rem}.btn-icon{font-size:1.1rem}.card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:var(--spacing-xl);transition:all var(--transition-normal);-webkit-backdrop-filter:blur(10px);box-shadow:var(--shadow-card);position:relative;overflow:hidden}.card:before{content:"";background:var(--gradient-primary);opacity:0;height:3px;transition:opacity var(--transition-normal);position:absolute;top:0;left:0;right:0}.card:hover{border-color:var(--border);box-shadow:var(--shadow-lg), var(--shadow-glow);transform:translateY(-6px)}.card:hover:before{opacity:1}.card-icon{background:var(--gradient-primary);border-radius:var(--radius-lg);width:56px;height:56px;margin-bottom:var(--spacing-lg);color:#fff;justify-content:center;align-items:center;font-size:1.5rem;display:flex;box-shadow:0 4px 12px #7c3aed40}.card-title{margin-bottom:var(--spacing-sm);color:var(--text-primary);font-size:1.25rem;font-weight:600}.card-text{color:var(--text-secondary);font-size:.95rem;line-height:1.7}.quick-nav{gap:var(--spacing-xl);margin-top:var(--spacing-3xl);grid-template-columns:repeat(auto-fit,minmax(280px,1fr));display:grid}.quick-nav-item{align-items:flex-start;gap:var(--spacing-lg);padding:var(--spacing-xl);background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);transition:all var(--transition-normal);cursor:pointer;box-shadow:var(--shadow-sm);display:flex}.quick-nav-item:hover{border-color:var(--primary);box-shadow:var(--shadow-lg);background:#fff;transform:translateY(-4px)}.quick-nav-icon{background:var(--gradient-primary);border-radius:var(--radius-lg);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:56px;height:56px;font-size:1.5rem;display:flex;box-shadow:0 4px 12px #7c3aed40}.quick-nav-text h3{margin-bottom:var(--spacing-xs);color:var(--text-primary);font-size:1.1rem;font-weight:600}.quick-nav-text p{color:var(--text-muted);font-size:.9rem;line-height:1.6}.tag{padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-light);align-items:center;font-size:.8rem;font-weight:500;display:inline-flex}.tag-primary{background:var(--primary-soft);color:var(--primary);border-color:var(--border)}.tag-success{color:#059669;background:#10b9811a;border-color:#10b98133}.avatar{border-radius:var(--radius-full);object-fit:cover;width:48px;height:48px;box-shadow:var(--shadow-sm);border:2px solid #fff}.avatar-lg{border-width:4px;border-color:var(--primary-light);width:120px;height:120px;box-shadow:var(--shadow-md), 0 0 0 4px var(--primary-soft)}.timeline{padding-left:var(--spacing-2xl);position:relative}.timeline:before{content:"";background:linear-gradient(180deg, var(--primary-light), var(--border));width:2px;position:absolute;top:0;bottom:0;left:8px}.timeline-item{padding-bottom:var(--spacing-xl);position:relative}.timeline-item:before{content:"";left:calc(-1 * var(--spacing-2xl) + 4px);border:3px solid var(--primary);border-radius:var(--radius-full);width:12px;height:12px;box-shadow:0 0 0 4px var(--primary-soft);background:#fff;position:absolute;top:4px}.timeline-date{color:var(--primary);margin-bottom:var(--spacing-xs);font-size:.9rem;font-weight:600}.timeline-title{margin-bottom:var(--spacing-xs);color:var(--text-primary);font-size:1.125rem;font-weight:600}.timeline-subtitle{color:var(--text-muted);margin-bottom:var(--spacing-sm);font-size:.9rem}.timeline-content{color:var(--text-secondary);font-size:.9rem;line-height:1.7}.skill-bar{margin-bottom:var(--spacing-lg)}.skill-header{margin-bottom:var(--spacing-sm);justify-content:space-between;display:flex}.skill-name{color:var(--text-primary);font-size:.9rem;font-weight:500}.skill-level{color:var(--text-muted);font-size:.8rem}.skill-progress{background:var(--bg-tertiary);border-radius:var(--radius-full);height:8px;overflow:hidden}.skill-fill{background:var(--gradient-primary);border-radius:var(--radius-full);height:100%;transition:width 1s;position:relative}.skill-fill:after{content:"";background:linear-gradient(90deg,#0000,#fff6);width:30px;height:100%;position:absolute;top:0;right:0}.photo-grid{gap:var(--spacing-xl);grid-template-columns:repeat(auto-fill,minmax(300px,1fr));display:grid}.photo-item{aspect-ratio:4/3;border-radius:var(--radius-xl);cursor:pointer;border:1px solid var(--border-light);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.photo-item img{object-fit:cover;width:100%;height:100%;transition:transform var(--transition-slow)}.photo-item:hover img{transform:scale(1.05)}.photo-overlay{opacity:0;transition:opacity var(--transition-normal);padding:var(--spacing-lg);background:linear-gradient(#0000 40%,#000000b3 100%);align-items:flex-end;display:flex;position:absolute;inset:0}.photo-item:hover .photo-overlay{opacity:1}.photo-title{color:#fff;font-size:.95rem;font-weight:500}.article-list{gap:var(--spacing-xl);flex-direction:column;display:flex}.article-item{gap:var(--spacing-xl);padding:var(--spacing-xl);background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);transition:all var(--transition-normal);box-shadow:var(--shadow-sm);grid-template-columns:220px 1fr;display:grid}.article-item:hover{border-color:var(--border);box-shadow:var(--shadow-lg);transform:translateY(-4px)}.article-cover{aspect-ratio:16/10;border-radius:var(--radius-lg);background:var(--bg-tertiary);overflow:hidden}.article-cover img{object-fit:cover;width:100%;height:100%}.article-content h3{margin-bottom:var(--spacing-sm);color:var(--text-primary);transition:color var(--transition-fast);font-size:1.25rem;font-weight:600}.article-content h3:hover{color:var(--primary)}.article-excerpt{color:var(--text-secondary);margin-bottom:var(--spacing-md);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.95rem;line-height:1.7;display:-webkit-box;overflow:hidden}.article-meta{align-items:center;gap:var(--spacing-md);color:var(--text-muted);font-size:.85rem;display:flex}.projects-scroll{scroll-snap-type:x mandatory;scrollbar-width:thin;-webkit-overflow-scrolling:touch;gap:1.25rem;padding:.5rem 0 1.5rem;display:flex;overflow-x:auto}.projects-scroll::-webkit-scrollbar{height:6px}.projects-scroll::-webkit-scrollbar-track{background:var(--bg-tertiary);border-radius:3px}.projects-scroll::-webkit-scrollbar-thumb{background:var(--primary-light);border-radius:3px}.album-card{background:var(--bg-card);cursor:pointer;border:1px solid var(--border-light);scroll-snap-align:start;border-radius:12px;flex:0 0 200px;transition:transform .3s,box-shadow .3s;overflow:hidden}.album-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-8px)}.album-cover{aspect-ratio:1;width:100%;position:relative;overflow:hidden}.album-cover img{object-fit:cover;width:100%;height:100%;transition:transform .4s}.album-card:hover .album-cover img{transform:scale(1.08)}.play-btn{background:var(--primary);opacity:0;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;transition:all .3s;display:flex;position:absolute;bottom:10px;right:10px;transform:translateY(8px)}.album-card:hover .play-btn{opacity:1;transform:translateY(0)}.play-btn svg{width:18px;height:18px}.album-info{padding:.875rem}.album-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;margin-bottom:.25rem;font-size:.9rem;font-weight:600;overflow:hidden}.album-artist{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:.8rem;overflow:hidden}.album-card .tag{background:var(--primary-soft);color:var(--primary);border-radius:20px;margin-top:.5rem;padding:2px 8px;font-size:.7rem;font-weight:500;display:inline-block}.chat-container{flex-direction:column;max-width:900px;height:calc(100vh - 72px);margin:0 auto;display:flex}.chat-header{padding:var(--spacing-2xl);text-align:center;background:var(--gradient-hero);border-bottom:1px solid var(--border-light)}.chat-header h1{margin-bottom:var(--spacing-sm);background:var(--gradient-text);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.75rem}.chat-header p{color:var(--text-secondary);font-size:.95rem}.chat-messages{padding:var(--spacing-xl);gap:var(--spacing-lg);background:var(--bg-primary);flex-direction:column;flex:1;display:flex;overflow-y:auto}.message{max-width:80%;padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-xl);font-size:.95rem;line-height:1.7}.message-user{background:var(--gradient-primary);color:#fff;border-bottom-right-radius:var(--radius-sm);align-self:flex-end;box-shadow:0 4px 12px #7c3aed40}.message-bot{border:1px solid var(--border-light);border-bottom-left-radius:var(--radius-sm);color:var(--text-primary);box-shadow:var(--shadow-sm);background:#fff;align-self:flex-start}.message-bot .thinking{padding:var(--spacing-sm) 0;gap:6px;display:flex}.message-bot .thinking span{background:var(--primary);border-radius:var(--radius-full);width:10px;height:10px;animation:1.4s ease-in-out infinite both bounce}.message-bot .thinking span:first-child{animation-delay:-.32s}.message-bot .thinking span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-input{padding:var(--spacing-lg) var(--spacing-xl);border-top:1px solid var(--border-light);background:#fff}.chat-input-form{gap:var(--spacing-md);display:flex}.chat-input input{padding:var(--spacing-md) var(--spacing-lg);background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-full);color:var(--text-primary);transition:all var(--transition-fast);flex:1;font-size:.95rem}.chat-input input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-soft);background:#fff;outline:none}.chat-input input::placeholder{color:var(--text-muted)}.form-group{margin-bottom:var(--spacing-lg)}.form-label{margin-bottom:var(--spacing-sm);color:var(--text-primary);font-size:.9rem;font-weight:500;display:block}.form-input{width:100%;padding:var(--spacing-md) var(--spacing-lg);background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition-fast);font-size:.95rem}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-soft);background:#fff;outline:none}.login-container{min-height:calc(100vh - 72px);padding:var(--spacing-xl);background:var(--gradient-hero);justify-content:center;align-items:center;display:flex}.login-box{width:100%;max-width:420px;padding:var(--spacing-2xl);border:1px solid var(--border-light);border-radius:var(--radius-2xl);box-shadow:var(--shadow-lg);background:#fff}.login-box h1{text-align:center;margin-bottom:var(--spacing-xl);background:var(--gradient-text);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.75rem}.footer{padding:var(--spacing-2xl) 0;border-top:1px solid var(--border-light);text-align:center;color:var(--text-muted);background:var(--bg-secondary);font-size:.9rem}.footer-links{justify-content:center;gap:var(--spacing-xl);margin-bottom:var(--spacing-md);display:flex}.footer-links a{color:var(--text-secondary);transition:color var(--transition-fast)}.footer-links a:hover{color:var(--primary)}@media (width<=768px){.navbar-nav{border-bottom:1px solid var(--border-light);padding:var(--spacing-lg);gap:var(--spacing-xs);box-shadow:var(--shadow-md);background:#fff;flex-direction:column;display:none;position:absolute;top:72px;left:0;right:0}.navbar-nav.active,.navbar-toggle{display:flex}.hero-content{text-align:center;gap:var(--spacing-2xl);grid-template-columns:1fr}.hero-text h1{font-size:2.5rem}.hero-image{order:-1}.hero-avatar{width:260px;height:260px}.hero-image:before{width:300px;height:300px}.hero-image:after{width:280px;height:280px}.hero-buttons{justify-content:center}.article-item{grid-template-columns:1fr}.article-cover{aspect-ratio:16/9}.section{padding:var(--spacing-2xl) 0}.section-title{font-size:1.75rem}.btn-outline{word-break:break-all;padding:.5rem .75rem;font-size:.75rem}}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}.mt-xl{margin-top:var(--spacing-xl)}.mt-2xl{margin-top:var(--spacing-2xl)}.mb-sm{margin-bottom:var(--spacing-sm)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.mb-xl{margin-bottom:var(--spacing-xl)}.mb-2xl{margin-bottom:var(--spacing-2xl)}.hidden{display:none}.flex{display:flex}.grid{display:grid}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.gap-xl{gap:var(--spacing-xl)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.6s forwards fadeIn}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.pulse{animation:2s ease-in-out infinite pulse}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.shimmer{background:linear-gradient(90deg, var(--bg-tertiary) 25%, white 50%, var(--bg-tertiary) 75%);background-size:200% 100%;animation:1.5s infinite shimmer}.kb-app-container{background:var(--gray-50);min-height:calc(100vh - 72px)}.kb-header{border-bottom:1px solid var(--border-light);z-index:100;background:#fff;justify-content:space-between;align-items:center;padding:16px 24px;display:flex;position:sticky;top:0}.kb-header h1{margin:0;font-size:20px;font-weight:600}.kb-header-right{align-items:center;gap:16px;display:flex}.kb-view-toggle{background:var(--bg-tertiary);border-radius:6px;gap:4px;padding:4px;display:flex}.kb-view-toggle-btn{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-radius:4px;padding:6px 12px;font-size:13px;transition:all .2s}.kb-view-toggle-btn.active{color:var(--text-primary);background:#fff;box-shadow:0 1px 2px #0000001a}.kb-search-form{gap:8px;display:flex}.kb-search-input{border:1px solid var(--border);border-radius:6px;width:200px;padding:8px 12px;font-size:14px}.kb-search-btn{padding:8px 16px}.kb-main-content{max-width:1200px;margin:0 auto;padding:24px}.kb-loading{height:200px;color:var(--text-muted);justify-content:center;align-items:center;display:flex}.kb-empty-state{text-align:center;color:var(--text-muted);padding:60px 20px}.kb-empty-state h3{margin-bottom:8px;font-size:18px}.kb-article-list{flex-direction:column;gap:16px;display:flex}.kb-article-card{border:1px solid var(--border-light);background:#fff;border-radius:8px;padding:20px;transition:box-shadow .2s}.kb-article-card:hover{box-shadow:0 4px 12px #0000001a}.kb-article-marked{border-left:4px solid var(--primary);background:linear-gradient(90deg,#eff6ff,#fff)}.kb-article-header{justify-content:space-between;align-items:flex-start;margin-bottom:12px;display:flex}.kb-article-title{color:var(--text-primary);flex:1;font-size:18px;font-weight:600}.kb-marked-badge{background:var(--primary);color:#fff;border-radius:4px;margin-right:8px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.kb-score-badge{border-radius:16px;justify-content:center;align-items:center;min-width:48px;padding:4px 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10px;font-size:12px}.chat-doc-btn.process{color:#2563eb;background:#eff6ff;border-color:#bfdbfe}.chat-doc-btn.delete{color:#dc2626}.chat-welcome{text-align:center;color:var(--text-secondary);padding:64px 24px}.chat-welcome-icon{margin-bottom:16px;font-size:48px}.chat-welcome h2{color:var(--text-primary);margin:0 0 8px}.chat-welcome p{margin:0}.chat-rag-hint{color:#166534;background:#f0fdf4;border-radius:8px;padding:8px 16px;display:inline-block;margin-top:16px!important}.chat-references{border-top:1px solid #f1f5f9;margin-top:12px;padding-top:12px}.chat-refs-header{color:#64748b;margin-bottom:8px;font-size:12px}.chat-ref-item{background:#f8fafc;border-radius:6px;align-items:center;gap:8px;margin-bottom:4px;padding:6px 10px;font-size:12px;display:flex}.chat-ref-score{color:#166534;background:#dcfce7;border-radius:4px;padding:2px 6px;font-weight:600}.chat-ref-title{color:#475569;text-overflow:ellipsis;white-space:nowrap;overflow:hidden}@media (width<=768px){.chat-with-rag{flex-direction:column}.chat-sidebar{border-bottom:1px solid #e2e8f0;border-right:none;width:100%;max-height:300px}.chat-header{flex-direction:column;gap:12px}}