:root{--bg: #0b1020;--bg-card: #121a2f;--bg-hover: #1a2540;--border: rgba(255, 255, 255, .08);--text: #eef2ff;--text-muted: #94a3b8;--primary: #6366f1;--primary-hover: #818cf8;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);--shadow: 0 20px 50px rgba(0, 0, 0, .35);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.5;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top right,rgba(99,102,241,.15),transparent 40%),radial-gradient(circle at bottom left,rgba(6,182,212,.12),transparent 35%),var(--bg)}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh}.page{max-width:1200px;margin:0 auto;padding:24px}.card{background:#121a2fd9;border:1px solid var(--border);border-radius:16px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:10px;border:none;transition:all .2s ease}.btn-primary{background:var(--gradient);color:#fff}.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.05)}.btn-secondary{background:var(--bg-hover);color:var(--text);border:1px solid var(--border)}.btn-danger{background:#ef444426;color:#fca5a5;border:1px solid rgba(239,68,68,.35)}.input{width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--border);background:#ffffff0a;color:var(--text)}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #6366f133}.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;background:#6366f126;color:#c7d2fe}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}@media (max-width: 768px){.grid-2{grid-template-columns:1fr}.knowledge-layout,.form-row{grid-template-columns:1fr!important}.table-head,.table-row{grid-template-columns:1fr 1fr!important}}.page-header{display:flex;justify-content:space-between;align-items:start;gap:16px;margin-bottom:24px}.page-header h1{margin:0 0 8px;font-size:32px}.subtitle{margin:0;color:var(--text-muted)}.hint{color:var(--text-muted);font-size:14px}.success-text{color:#86efac}.error-text{color:#fca5a5}.center{text-align:center;padding-top:120px}.panel{padding:24px}.panel h3{margin-top:0}.btn-lg{padding:12px 24px;font-size:16px}.field-label{display:block;margin:12px 0 8px;color:var(--text-muted);font-size:13px}.chip-group{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.chip{padding:8px 14px;border-radius:999px;border:1px solid var(--border);background:transparent;color:var(--text-muted)}.chip.active{background:#6366f133;color:#c7d2fe;border-color:#6366f166}.hero{padding:40px}.hero-badge{display:inline-block;margin-bottom:12px;padding:6px 12px;border-radius:999px;background:#6366f126;color:#c7d2fe;font-size:13px}.hero-actions{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}.feature-card ul{margin:0;padding-left:20px;color:var(--text-muted)}.feature-card li{margin-bottom:8px}.tech-tags{display:flex;flex-wrap:wrap;gap:8px}.table-list{display:grid;gap:8px}.table-head,.table-row{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:12px;align-items:center;padding:12px 8px}.table-head{color:var(--text-muted);font-size:13px;border-bottom:1px solid var(--border)}.table-row{border-radius:10px;cursor:pointer}.table-row:hover{background:var(--bg-hover)}.title-cell{font-weight:600}.actions{display:flex;gap:8px}.link-btn{background:none;border:none;color:#818cf8;padding:0}.link-btn.danger{color:#fca5a5}.record-page{min-height:100vh;display:flex;flex-direction:column}.record-header{padding:20px 24px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border)}.record-header h2{margin:0}.timer{font-size:36px;font-weight:700;font-variant-numeric:tabular-nums;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.record-grid{flex:1;padding:24px}.record-footer{padding:20px;display:flex;justify-content:center;gap:16px;border-top:1px solid var(--border)}.transcript-live,.transcript-list{display:grid;gap:10px;max-height:360px;overflow:auto}.bubble{padding:12px;border-radius:12px;background:var(--bg-hover)}.bubble.muted{opacity:.6}.bubble-meta{font-size:12px;color:var(--text-muted);margin-bottom:4px}.preview-box{display:grid;gap:12px;color:var(--text-muted);font-size:14px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:grid;place-items:center;z-index:100}.modal{width:min(420px,92vw)}.task-list{display:grid;gap:8px}.task-item{display:flex;justify-content:space-between;padding:10px;background:var(--bg-hover);border-radius:8px}.code-block{margin:0;white-space:pre-wrap;font-size:12px;color:var(--text-muted);max-height:240px;overflow:auto}.knowledge-layout{display:grid;grid-template-columns:220px 1fr;gap:20px}.category-sidebar{height:fit-content;position:sticky;top:88px}.category-item{display:block;width:100%;text-align:left;padding:10px 12px;margin-bottom:6px;border:none;border-radius:8px;background:transparent;color:var(--text-muted)}.category-item.active,.category-item:hover{background:#6366f126;color:#c7d2fe}.search-bar{display:flex;gap:10px}.form-row{display:grid;grid-template-columns:1.5fr 1fr 1fr .8fr auto;gap:10px;align-items:center}.kb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.kb-card{cursor:pointer;transition:transform .15s}.kb-card:hover{transform:translateY(-2px)}.kb-card-head{display:flex;justify-content:space-between;margin-bottom:8px;color:var(--text-muted);font-size:13px}.kb-card h3{margin:0 0 8px}.tags{font-size:13px;color:#818cf8}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(440px,100%)}.login-form{display:grid;gap:14px;margin-top:20px}.login-code-row{display:flex;gap:10px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}