:root{--bg: #0a0a0f;--bg-elevated: #111118;--bg-card: #16161f;--bg-hover: #1e1e2a;--bg-glass: rgba(22, 22, 31, .85);--text: #e8e8f0;--text2: #78789a;--text3: #4a4a66;--border: rgba(255, 255, 255, .06);--border-glow: rgba(99, 102, 241, .3);--accent: #6366f1;--accent-soft: rgba(99, 102, 241, .12);--accent-glow: rgba(99, 102, 241, .35);--radius: 12px;--radius-sm: 8px;--radius-xs: 6px;--shadow: 0 1px 2px rgba(0, 0, 0, .6);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--transition: .2s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.topbar{position:sticky;top:0;z-index:100;background:var(--bg-glass);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-bottom:1px solid var(--border)}.topbar-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 40px;height:56px}.brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--text);letter-spacing:-.2px}.brand-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent-glow),0 0 24px var(--accent-glow)}.tabs{display:flex;gap:2px;background:#ffffff0a;padding:3px;border-radius:8px}.tab-btn{padding:6px 20px;border:none;background:transparent;color:var(--text2);font-size:13px;font-weight:500;cursor:pointer;border-radius:6px;transition:all var(--transition);letter-spacing:-.1px}.tab-btn:hover{color:var(--text)}.tab-btn.active{background:#ffffff14;color:var(--text)}.content{max-width:1280px;margin:0 auto;padding:36px 40px 80px}.nav-page-header{margin-bottom:36px}.nav-page-title{font-size:22px;font-weight:700;letter-spacing:-.4px;color:var(--text);margin-bottom:4px}.nav-page-subtitle{font-size:13px;color:var(--text2);font-weight:400}.nav-toolbar{display:flex;gap:12px;margin-bottom:40px;align-items:center}.nav-search{flex:1;position:relative}.nav-search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text3);font-size:15px;pointer-events:none;transition:color var(--transition)}.nav-search input{width:100%;padding:12px 16px 12px 40px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none;background:var(--bg-elevated);color:var(--text);transition:all var(--transition)}.nav-search input::placeholder{color:var(--text3)}.nav-search input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #6366f11a}.nav-search input:focus~.nav-search-icon,.nav-search:focus-within .nav-search-icon{color:var(--accent)}.nav-add-btn{display:flex;align-items:center;gap:6px;padding:12px 22px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition);white-space:nowrap}.nav-add-btn:hover{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 20px var(--accent-soft)}.nav-category{margin-bottom:40px}.nav-cat-header{display:flex;align-items:center;gap:10px;margin-bottom:16px}.nav-cat-icon{width:28px;height:28px;border-radius:6px;background:#ffffff0d;display:flex;align-items:center;justify-content:center;font-size:15px}.nav-cat-name{font-size:13px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.5px}.nav-cat-count{font-size:11px;font-weight:500;color:var(--text3);background:#ffffff0a;padding:2px 8px;border-radius:4px}.nav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}.nav-card{position:relative;padding:20px 16px;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);text-decoration:none;color:inherit;display:flex;flex-direction:column;align-items:center;gap:10px;cursor:pointer;transition:all var(--transition);overflow:hidden}.nav-card:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:var(--radius);opacity:0;pointer-events:none;transition:opacity var(--transition);background:radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%),rgba(99,102,241,.08),transparent 70%)}.nav-card:hover{border-color:var(--border-glow);transform:translateY(-2px);box-shadow:0 4px 24px #0006}.nav-card:hover:after{opacity:1}.nav-card-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;transition:transform var(--transition);color:var(--text)}.nav-card:hover .nav-card-icon{transform:scale(1.06)}.nav-card-name{font-size:14px;font-weight:600;text-align:center;letter-spacing:-.1px}.nav-card-desc{font-size:12px;color:var(--text3);text-align:center;line-height:1.4}.nav-card-del{position:absolute;top:8px;right:8px;width:22px;height:22px;border-radius:5px;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text3);font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition);opacity:0}.nav-card:hover .nav-card-del{opacity:1}.nav-card-del:hover{background:#ef444426;border-color:#ef44444d;color:#f87171}.ai-page{max-width:820px;margin:0 auto}.ai-page-header{margin-bottom:36px}.ai-page-icon{width:44px;height:44px;border-radius:var(--radius);background:var(--accent-soft);border:1px solid var(--border-glow);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;box-shadow:0 0 24px var(--accent-soft)}.ai-page-title{font-size:22px;font-weight:700;letter-spacing:-.4px}.ai-page-subtitle{font-size:13px;color:var(--text2);margin-top:4px}.ai-input-card{background:var(--bg-elevated);border-radius:var(--radius);border:1px solid var(--border);padding:24px;margin-bottom:20px;transition:border-color var(--transition)}.ai-input-card:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #6366f114}.ai-input-card textarea{width:100%;min-height:240px;padding:0;border:none;font-size:14px;font-family:inherit;line-height:1.8;resize:vertical;outline:none;color:var(--text);background:transparent}.ai-input-card textarea::placeholder{color:var(--text3)}.ai-input-footer{display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}.ai-input-stats{font-size:12px;color:var(--text2);display:flex;gap:16px;font-family:SF Mono,Fira Code,Cascadia Code,monospace}.ai-input-stats .warn{color:#f87171}.ai-input-actions{display:flex;gap:8px}.ai-btn-ghost{padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius-xs);background:transparent;color:var(--text2);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition)}.ai-btn-ghost:hover{color:var(--text);border-color:#ffffff1f;background:#ffffff08}.ai-btn-primary{padding:8px 24px;border:1px solid var(--accent);border-radius:var(--radius-xs);background:#6366f126;color:var(--accent);font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition);letter-spacing:-.1px}.ai-btn-primary:hover:not(:disabled){background:var(--accent);color:#fff;box-shadow:0 0 20px var(--accent-glow)}.ai-btn-primary:disabled{opacity:.3;cursor:not-allowed}.ai-loading{display:flex;flex-direction:column;align-items:center;padding:64px 24px;gap:16px}.ai-spinner{width:32px;height:32px;border-radius:50%;border:2px solid var(--border);border-top-color:var(--accent);animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.ai-loading-text{font-size:13px;color:var(--text2)}.ai-empty{text-align:center;padding:64px 24px;border:1px dashed var(--border);border-radius:var(--radius);background:var(--bg-elevated)}.ai-empty-icon{font-size:40px;margin-bottom:16px;opacity:.5}.ai-empty-title{font-size:16px;font-weight:600;margin-bottom:8px}.ai-empty-desc{font-size:13px;color:var(--text2);margin-bottom:2px}.ai-result-block{background:var(--bg-elevated);border-radius:var(--radius);border:1px solid var(--border);padding:24px;margin-bottom:12px}.ai-block-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--border)}.ai-block-dot{width:8px;height:8px;border-radius:50%}.ai-block-title{font-size:13px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.5px}.ai-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.ai-stat-item{text-align:center;padding:16px;background:var(--bg);border-radius:var(--radius-sm);border:1px solid var(--border)}.ai-stat-value{font-size:28px;font-weight:700;font-family:SF Mono,Fira Code,Cascadia Code,monospace;color:var(--text);letter-spacing:-1px}.ai-stat-label{font-size:11px;color:var(--text3);margin-top:4px;text-transform:uppercase;letter-spacing:.5px}.ai-keypoint-list{display:flex;flex-direction:column;gap:8px}.ai-keypoint-item{display:flex;gap:14px;font-size:14px;line-height:1.7;padding:14px 16px;background:var(--bg);border-radius:var(--radius-sm);border:1px solid var(--border);transition:border-color var(--transition)}.ai-keypoint-item:hover{border-color:var(--border-glow)}.ai-keypoint-dot{width:22px;height:22px;border-radius:50%;background:#6366f126;border:1px solid rgba(99,102,241,.25);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0;font-family:SF Mono,Fira Code,monospace}.ai-summary-text{font-size:14px;line-height:1.9;background:var(--bg);padding:20px;border-radius:var(--radius-sm);border:1px solid var(--border);border-left:2px solid var(--accent)}.ai-summary-text p{margin-bottom:10px}.ai-summary-text p:last-child{margin-bottom:0}.ai-keyword-cloud{display:flex;flex-wrap:wrap;gap:6px}.ai-keyword-tag{padding:6px 14px;background:var(--bg);border:1px solid var(--border);border-radius:6px;font-size:12px;font-weight:500;transition:all var(--transition);cursor:default;font-family:SF Mono,Fira Code,monospace}.ai-keyword-tag:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.ai-keyword-count{color:var(--text3);margin-left:4px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:9999;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-panel{background:var(--bg-elevated);border-radius:var(--radius);border:1px solid var(--border);padding:28px;width:440px;max-width:94vw;max-height:92vh;overflow-y:auto;box-shadow:0 24px 64px #0009;animation:modalIn .2s cubic-bezier(.4,0,.2,1)}@keyframes modalIn{0%{opacity:0;transform:scale(.97) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}.modal-title{font-size:16px;font-weight:700}.modal-close{width:28px;height:28px;border-radius:6px;border:1px solid var(--border);background:transparent;color:var(--text2);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}.modal-close:hover{background:#ef44441a;border-color:#ef444433;color:#f87171}.form-group{margin-bottom:18px}.form-label{display:block;font-size:12px;font-weight:600;margin-bottom:6px;color:var(--text2);text-transform:uppercase;letter-spacing:.4px}.form-label .required{color:#f87171;margin-left:2px}.form-input,.form-select{width:100%;padding:10px 14px;border-radius:var(--radius-xs);border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:14px;outline:none;transition:all var(--transition);box-sizing:border-box}.form-input:focus,.form-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px #6366f114}.form-input::placeholder{color:var(--text3)}.form-select{cursor:pointer}.picker-grid{display:flex;flex-wrap:wrap;gap:5px}.picker-item{width:34px;height:34px;border-radius:6px;border:1px solid var(--border);background:var(--bg);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}.picker-item:hover{border-color:#ffffff26;background:var(--bg-hover)}.picker-item.selected{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 12px var(--accent-soft)}.color-grid{display:flex;flex-wrap:wrap;gap:7px}.color-dot{width:28px;height:28px;border-radius:50%;cursor:pointer;transition:all var(--transition);border:2px solid transparent}.color-dot:hover{transform:scale(1.15)}.color-dot.selected{border-color:var(--text);box-shadow:0 0 12px var(--accent-glow);transform:scale(1.1)}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:24px;padding-top:18px;border-top:1px solid var(--border)}.modal-btn-cancel{padding:10px 20px;border-radius:var(--radius-xs);border:1px solid var(--border);background:transparent;color:var(--text2);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition)}.modal-btn-cancel:hover{color:var(--text);border-color:#ffffff1a}.modal-btn-submit{padding:10px 24px;border-radius:var(--radius-xs);border:1px solid var(--accent);background:var(--accent);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:all var(--transition)}.modal-btn-submit:hover:not(:disabled){box-shadow:0 0 20px var(--accent-glow)}.modal-btn-submit:disabled{opacity:.3;cursor:not-allowed}@media (max-width: 768px){.topbar-inner{padding:0 16px}.content{padding:24px 16px 64px}.nav-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}.nav-toolbar{flex-direction:column;gap:8px}.nav-add-btn{width:100%;justify-content:center}.ai-stats-grid{grid-template-columns:repeat(3,1fr)}.nav-page-title,.ai-page-title{font-size:20px}}