:root{--bg-primary:#ffffff;--bg-secondary:#f9fafb;--bg-tertiary:#f3f4f6;--text-primary:#111827;--text-secondary:#6b7280;--text-tertiary:#9ca3af;--border:#e5e7eb;--border-light:#f3f4f6;--accent:#3b82f6;--accent-hover:#2563eb;--danger:#ef4444;--success:#10b981;--warning:#f59e0b;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow:0 1px 3px 0 rgba(0,0,0,0.1),0 1px 2px 0 rgba(0,0,0,0.06);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05)}[data-theme="dark"]{--bg-primary:#111827;--bg-secondary:#1f2937;--bg-tertiary:#374151;--text-primary:#f9fafb;--text-secondary:#9ca3af;--text-tertiary:#6b7280;--border:#374151;--border-light:#1f2937;--accent:#60a5fa;--accent-hover:#3b82f6}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;display:flex;flex-direction:column;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.sidebar{position:fixed;top:0;left:0;width:260px;height:100vh;background:var(--bg-secondary);border-right:1px solid var(--border);padding:20px 16px;overflow-y:auto;z-index:100}.logo{margin-bottom:24px}.logo a{font-size:1.25rem;font-weight:700;color:var(--text-primary);text-decoration:none}.search-box{margin-bottom:20px}.search-box input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg-tertiary);color:var(--text-primary);font-size:0.875rem}.search-box input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.nav-section{margin-bottom:20px}.nav-section h3{font-size:0.75rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:8px;display:flex;align-items:center;gap:4px;line-height:1}.nav-section > .sidebar-section-title{margin-bottom:8px}.nav-section > .sidebar-section-title h3{margin-bottom:0}.sidebar-section-title{display:flex;justify-content:space-between;align-items:center;width:100%}.sidebar-section-title h3{margin:0;display:flex;align-items:center;gap:4px;line-height:1}.add-category-btn{background:none;border:none;color:#3b82f6;cursor:pointer;font-size:16px;padding:0;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;line-height:1;border-radius:4px;transition:all 0.15s ease}.add-category-btn:hover{color:#2563eb;background:rgba(59,130,246,0.1)}.add-category-btn:active{transform:scale(0.95)}.nav-section > h3{margin-bottom:8px}.nav-section ul{list-style:none;max-height:200px;overflow-y:auto}.nav-section li{margin-bottom:2px}.nav-section a{display:block;padding:6px 10px;border-radius:6px;color:var(--text-secondary);font-size:0.875rem;transition:all 0.15s}.nav-section a:hover{background:var(--bg-tertiary);color:var(--text-primary);text-decoration:none}.nav-section a.active{background:var(--accent);color:white}.sidebar ul.favorites-list li a{display:block;padding:6px 10px;border-radius:6px;color:var(--text-secondary);font-size:0.875rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-footer{margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}.content{margin-left:260px;padding:32px;flex:1 0 auto;width:calc(100% - 260px);max-width:none}.page-header{margin-bottom:24px}.page-header h1{font-size:1.5rem;font-weight:700;margin-bottom:4px}.page-header .stats{color:var(--text-secondary);font-size:0.875rem}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--border);border-radius:8px;background:var(--bg-secondary);color:var(--text-primary);font-size:0.875rem;font-weight:500;cursor:pointer;transition:all 0.15s;text-decoration:none}.btn:hover{background:var(--bg-tertiary);border-color:var(--text-tertiary);text-decoration:none}.btn-primary{background:var(--accent);border-color:var(--accent);color:white}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-danger{color:var(--danger);border-color:var(--danger);background:transparent}.btn-danger:hover{background:var(--danger);color:white}.btn-sm{padding:4px 10px;font-size:0.8125rem}.note-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.note-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:20px;transition:all 0.2s}.note-card:hover{box-shadow:var(--shadow-md);border-color:var(--text-tertiary);transform:translateY(-2px)}.note-card.favorite{border-color:var(--warning);background:linear-gradient(105deg,var(--bg-secondary) 0%,rgba(245,158,11,0.05) 100%)}.note-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px}.note-card-header h2{font-size:1rem;font-weight:600;line-height:1.4;flex:1;margin-right:8px}.note-card-header a{color:var(--text-primary);text-decoration:none}.note-card-header a:hover{color:var(--accent)}.favorite-btn{background:none;border:none;cursor:pointer;font-size:1.125rem;padding:4px;color:var(--text-tertiary);transition:color 0.15s}.favorite-btn:hover{color:var(--warning)}.favorite-btn.active{color:var(--warning)}.note-card-meta{display:flex;gap:8px;align-items:center;margin-bottom:12px;font-size:0.75rem;color:var(--text-secondary)}.note-card-meta .category{background:var(--bg-tertiary);padding:2px 8px;border-radius:4px}.note-card-preview .tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:8px}.tag{display:inline-block;padding:2px 8px;background:var(--bg-tertiary);color:var(--text-secondary);border-radius:4px;font-size:0.75rem}.note-card-actions{display:flex;gap:8px}.empty-state{text-align:center;padding:80px 20px}.empty-icon{font-size:4rem;margin-bottom:16px}.empty-state h2{font-size:1.5rem;color:var(--text-primary);margin-bottom:8px}.empty-state p{color:var(--text-secondary);margin-bottom:24px}.note-detail{max-width:none;margin:0;width:100%}.editor-container{width:100%;max-width:none}.editor-pane,.preview-pane{flex:1;min-width:0}.detail-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:16px;gap:16px}.note-title{font-size:2rem;font-weight:700;line-height:1.3;flex:1}.detail-actions{display:flex;gap:8px;flex-shrink:0}.detail-meta{display:flex;gap:16px;padding:12px 16px;background:var(--bg-secondary);border-radius:8px;margin-bottom:24px;font-size:0.875rem;color:var(--text-secondary);align-items:center;flex-wrap:wrap}.detail-meta .tags{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}.markdown-content{font-size:1rem;line-height:1.8;color:var(--text-primary);white-space:normal;word-break:normal;overflow-wrap:break-word}.markdown-content > *:first-child:not(h1):not(h2):not(h3){margin-top:8px}.markdown-content h1{font-size:2rem;margin:24px 0 16px;font-weight:700}.markdown-content h2{font-size:1.5rem;margin:28px 0 14px;font-weight:700}.markdown-content h3{font-size:1.25rem;margin:22px 0 12px;font-weight:600}.markdown-content h4{font-size:1.125rem;margin:18px 0 10px;font-weight:600}.markdown-content p{margin:12px 0}.markdown-content ul{list-style:disc !important;list-style-type:disc !important}.markdown-content ol{list-style:decimal !important;list-style-type:decimal !important}.markdown-content ul,.markdown-content ol{display:block !important;margin:14px 0 !important;padding-left:28px !important}.markdown-content li{display:list-item !important;margin:6px 0 !important;list-style:inherit !important}.markdown-content ul li::marker,.markdown-content ol li::marker{color:var(--accent);font-weight:600}.markdown-content blockquote{margin:16px 0;padding:12px 20px;border-left:4px solid var(--accent);background:var(--bg-secondary);border-radius:0 8px 8px 0;color:var(--text-secondary)}.markdown-content blockquote > p{margin:8px 0}.markdown-content blockquote > p + p{margin-top:10px}.markdown-content code{padding:2px 6px;background:var(--bg-tertiary);border-radius:4px;font-family:'Consolas','Monaco',monospace;font-size:0.875em}.markdown-content pre{margin:16px 0;padding:16px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;overflow-x:auto}.markdown-content pre code{padding:0;background:none;font-size:0.875rem;line-height:1.6}.markdown-content table{width:100%;border-collapse:collapse;margin:16px 0;border-radius:8px;overflow:hidden;box-shadow:var(--shadow-sm)}.markdown-content th{background:var(--bg-secondary);font-weight:600;text-align:left;padding:12px 16px;border-bottom:2px solid var(--border)}.markdown-content td{padding:10px 16px;border-bottom:1px solid var(--border-light)}.markdown-content tbody tr:nth-child(even){background:var(--bg-secondary)}.markdown-content tbody tr:hover{background:var(--bg-tertiary)}.markdown-content img{max-width:100%;height:auto;border-radius:8px;margin:16px 0}.markdown-content hr{margin:24px 0;border:none;border-top:1px solid var(--border)}.markdown-content a{color:var(--accent);text-decoration:none}.markdown-content a:hover{text-decoration:underline}.search-query{color:var(--text-secondary);font-size:0.875rem}.search-results{display:flex;flex-direction:column;gap:16px}.search-result-item{padding:16px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;transition:all 0.15s}.search-result-item:hover{box-shadow:var(--shadow-sm);border-color:var(--text-tertiary)}.search-result-item h2{font-size:1.125rem;font-weight:600;margin-bottom:8px}.result-meta{display:flex;gap:12px;font-size:0.75rem;color:var(--text-secondary);margin-bottom:8px}.result-content-preview{color:var(--text-secondary);font-size:0.875rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);display:flex;justify-content:center;align-items:center;z-index:200}.modal-content{background:var(--bg-primary);border-radius:12px;padding:24px;width:400px;max-width:90vw}.modal-content h3{font-size:1.25rem;font-weight:600;margin-bottom:16px}.modal-content input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:6px;background:var(--bg-secondary);color:var(--text-primary);margin-bottom:12px}.modal-content input:focus{outline:none;border-color:var(--accent)}@media (max-width:768px){.sidebar{width:60px;padding:12px 8px}.sidebar .logo a,.sidebar h3,.sidebar a,.search-box,.nav-footer .btn,.nav-section ul{display:none}.content{margin-left:60px;padding:16px}.detail-header{flex-direction:column}.note-grid{grid-template-columns:1fr}}.site-footer{flex-shrink:0;margin-left:0;width:100%;padding:24px 16px 28px;text-align:center;background:var(--bg-primary);border-top:1px solid var(--border)}.content ~ .site-footer{margin-left:260px;width:calc(100% - 260px)}.site-footer .footer-inner{max-width:880px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:14px}.site-footer .footer-beian{width:100%;text-align:center}.site-footer .footer-beian .beian-list{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;width:100%;gap:10px 16px;margin:0;padding:0}.site-footer .beian-item{display:inline-flex}.site-footer .beian-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-secondary);text-decoration:none;padding:5px 14px;border:1px solid var(--border);border-radius:999px;background:var(--bg-primary);transition:color 0.15s ease,border-color 0.15s ease,background 0.15s ease,box-shadow 0.15s ease}.site-footer .beian-link:hover{color:var(--accent);border-color:var(--accent);background:rgba(59,130,246,0.06);box-shadow:var(--shadow-sm);text-decoration:none}.site-footer .beian-icon{font-size:13px;line-height:1}.site-footer .footer-copyright{width:100%;text-align:center;margin:0;font-size:12.5px;color:var(--text-tertiary);letter-spacing:0.02em}.site-footer .footer-copyright .footer-year{color:var(--text-secondary);font-weight:600}@media (max-width:768px){.site-footer{padding:22px 12px 26px}.content ~ .site-footer{margin-left:60px;width:calc(100% - 60px)}.site-footer .footer-inner{gap:12px}.site-footer .footer-beian .beian-list{flex-direction:column;gap:8px}.site-footer .beian-link{font-size:12px;padding:4px 12px}.site-footer .footer-copyright{font-size:11.5px}}.user-section{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-top:1px solid var(--border);margin-top:auto}.user-info{display:flex;align-items:center;gap:10px}.user-avatar{width:36px;height:36px;border-radius:50%;background:var(--accent);color:white;display:flex;align-items:center;justify-content:center;font-size:18px}.user-details{display:flex;flex-direction:column}.username{font-size:14px;font-weight:600;color:var(--text-primary)}.logout-btn{background:none;border:none;cursor:pointer;font-size:16px;padding:4px 8px;border-radius:6px;transition:background 0.2s}.logout-btn:hover{background:var(--bg-tertiary)}