@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Lora:wght@400;500;600&display=swap");:root{--color-dark:#141413;--color-light:#faf9f5;--color-mid-gray:#b0aea5;--color-light-gray:#e8e6dc;--color-orange:#d97757;--color-blue:#6a9bcc;--color-green:#788c5d;--bg-primary:#faf9f5;--bg-secondary:#ffffff;--bg-tertiary:#e8e6dc;--text-primary:#141413;--text-secondary:#b0aea5;--border-color:#e8e6dc;--font-heading:"Poppins",-apple-system,BlinkMacSystemFont,sans-serif;--font-body:"Lora",Georgia,serif;--shadow-sm:0 1px 2px rgba(20,20,19,0.05);--shadow-md:0 4px 6px rgba(20,20,19,0.07);--shadow-lg:0 10px 15px rgba(20,20,19,0.1);--shadow-xl:0 20px 25px rgba(20,20,19,0.15);--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--radius-full:9999px;--transition:all 0.2s ease;--sidebar-width:240px}[data-theme=dark]{--bg-primary:#0f0f0e;--bg-secondary:#1a1a19;--bg-tertiary:#2a2a28;--text-primary:#faf9f5;--text-secondary:#8a8880;--border-color:#3a3a38;--shadow-sm:0 1px 2px rgba(0,0,0,0.2);--shadow-md:0 4px 6px rgba(0,0,0,0.3);--shadow-lg:0 10px 15px rgba(0,0,0,0.4);--shadow-xl:0 20px 25px rgba(0,0,0,0.5)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--bg-primary);color:var(--text-primary);line-height:1.7;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background .3s ease,color .3s ease}.container{max-width:1400px;margin:0 auto;padding:0 24px}.header{padding:32px 0;border-bottom:1px solid var(--border-color);position:relative}.header-inner{display:flex;justify-content:space-between;align-items:center;gap:16px}.header-brand{flex:1 1;text-align:center}.header-brand h1{font-family:var(--font-heading);font-size:2rem;font-weight:700;color:var(--text-primary);letter-spacing:-.02em;margin-bottom:4px}.header-brand 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var(--text-primary)}.category-icon{font-size:1.25rem}.category-title{font-family:var(--font-heading);font-size:1.1rem;font-weight:600;color:var(--text-primary);letter-spacing:-.01em;flex:1 1}.category-count{font-family:var(--font-heading);font-size:.8rem;color:var(--text-secondary);background:var(--bg-tertiary);padding:4px 10px;border-radius:var(--radius-full)}.page-header{display:flex;align-items:center;gap:16px;margin-bottom:32px;padding:24px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md)}.page-icon{font-size:2.5rem}.page-title{font-family:var(--font-heading);font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:4px}.page-desc{font-size:.9rem;color:var(--text-secondary)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));grid-gap:20px;gap:20px}.card{background:var(--bg-secondary);border:1px solid 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p:first-child{font-size:2.5rem;margin-bottom:12px}.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:24px;font-size:.85rem;flex-wrap:wrap}.breadcrumb a{color:var(--text-secondary);text-decoration:none;transition:var(--transition)}.breadcrumb a:hover{color:var(--color-orange)}.breadcrumb span{color:var(--text-secondary)}.breadcrumb .current{color:var(--text-primary);font-weight:500;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search-section{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);padding:20px 0}.search-wrapper{max-width:600px;margin:0 auto}.search-container{position:relative}.search-input{width:100%;padding:14px 20px 14px 48px;background:var(--bg-primary);border:2px solid var(--border-color);border-radius:var(--radius-lg);font-family:var(--font-body);font-size:1rem;color:var(--text-primary);transition:var(--transition)}.search-input:focus{outline:none;border-color:var(--color-orange);box-shadow:0 0 0 3px 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var(--border-color)}.search-results .grid{display:flex;flex-direction:column;gap:12px}.search-results .card{min-height:auto;padding:16px}.article{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:32px;margin-bottom:24px}.article-header{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--border-color)}.article h1{font-family:var(--font-heading);font-size:1.75rem;font-weight:700;color:var(--text-primary);line-height:1.3;margin-bottom:12px;letter-spacing:-.02em}.article-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:.85rem;color:var(--text-secondary)}.article-meta span{display:flex;align-items:center;gap:6px}.article-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.article-tag{display:inline-flex;align-items:center;padding:4px 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solid var(--color-blue);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic}.article-content blockquote p{margin-bottom:0}.article-content code{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-family:SF Mono,Monaco,Inconsolata,monospace;font-size:.9em;color:var(--color-orange)}.article-content pre{margin:20px 0;padding:16px;background:var(--text-primary);border-radius:var(--radius-sm);overflow-x:auto}.article-content pre code{background:none;padding:0;color:var(--bg-primary);font-size:.85rem;line-height:1.6}.article-content table{width:100%;margin:24px 0;border-collapse:collapse;font-size:.9rem}.article-content thead{background:var(--bg-tertiary)}.article-content th{padding:12px 14px;text-align:left;font-family:var(--font-heading);font-weight:600;color:var(--text-primary);border-bottom:2px solid var(--text-primary)}.article-content td{padding:12px 14px;border-bottom:1px solid var(--border-color)}.article-content tbody tr:hover{background:var(--bg-tertiary)}.article-content hr{margin:32px 0;border:none;height:1px;background:var(--border-color)}.article-content strong{font-weight:600;color:var(--text-primary)}.article-content a{color:var(--color-orange);text-decoration:underline;text-underline-offset:2px;transition:var(--transition)}.article-content a:hover{color:var(--text-primary)}.toc{background:transparent;border:none;padding:0}.toc-title{display:none}.toc-list{list-style:none;padding:0;margin:0}.toc-item{margin-bottom:4px}.toc-link{display:block;color:var(--text-secondary);text-decoration:none;font-size:.8rem;line-height:1.5;padding:4px 8px;transition:var(--transition);border-left:2px solid transparent;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.toc-link.active,.toc-link:hover{color:var(--color-orange);border-left-color:var(--color-orange);background:var(--bg-tertiary)}.toc-link[data-level="3"]{padding-left:20px;font-size:.75rem}.share-section{display:flex;align-items:center;gap:12px;padding:20px 0 0;margin-top:24px;border-top:1px solid var(--border-color)}.share-label{font-family:var(--font-heading);font-size:.85rem;color:var(--text-secondary)}.share-buttons{display:flex;gap:8px}.share-btn{width:36px;height:36px;border-radius:var(--radius-full);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:var(--transition)}.share-btn:hover{background:var(--color-orange);border-color:var(--color-orange);color:var(--color-light)}.share-btn.copied{background:var(--color-green);border-color:var(--color-green);color:var(--color-light)}.back-to-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:var(--radius-full);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;opacity:0;visibility:hidden;transform:translateY(20px);transition:var(--transition);z-index:100;box-shadow:var(--shadow-lg)}.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--color-orange);border-color:var(--color-orange);color:var(--color-light)}.footer{text-align:center;padding:32px 24px;margin-top:32px;border-top:1px solid var(--border-color);color:var(--text-secondary);font-size:.85rem}@media (max-width:1024px){.layout-wrapper{flex-direction:column}.sidebar{width:100%;position:static;max-height:none;display:flex;gap:16px;flex-wrap:wrap}.sidebar-section{flex:1 1;min-width:200px;margin-bottom:0}.toc{display:none}}@media (max-width:768px){.container{padding:0 16px}.header{padding:24px 0}.header-brand h1{font-size:1.5rem}.header-actions{right:16px}.theme-toggle{width:36px;height:36px}.nav-inner{overflow-x:auto;padding-bottom:8px;-webkit-overflow-scrolling:touch}.nav-link{white-space:nowrap;padding:6px 12px;font-size:.8rem}.search-section{padding:16px 0}.search-wrapper{padding:0 4px}.layout-wrapper{padding:20px 16px;gap:20px}.sidebar{flex-direction:column}.sidebar-section{min-width:100%}.grid{grid-template-columns:1fr;gap:16px}.card{padding:20px}.card-footer{flex-direction:column;align-items:flex-start;gap:12px}.card-link{width:100%;justify-content:center}.article{padding:24px 20px}.article h1{font-size:1.35rem}.page-header{padding:20px}.page-title{font-size:1.25rem}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--text-secondary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-primary)}::selection{background:var(--color-orange);color:var(--color-light)}.mobile-toc-button{display:none;position:fixed;right:20px;bottom:80px;width:56px;height:56px;border-radius:50%;background:var(--color-orange);color:white;border:none;box-shadow:0 4px 12px rgba(217,119,87,.4);cursor:pointer;z-index:1000;align-items:center;justify-content:center;transition:transform .2s,box-shadow .2s}.mobile-toc-button:hover{transform:scale(1.1);box-shadow:0 6px 16px rgba(217,119,87,.5)}.mobile-toc-button:active{transform:scale(.95)}.mobile-toc-badge{position:absolute;top:-4px;right:-4px;width:20px;height:20px;border-radius:50%;background:var(--color-green);color:white;font-size:11px;font-weight:600;display:flex;align-items:center;justify-content:center;border:2px solid var(--bg-primary)}.mobile-toc-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1001;animation:fadeIn .2s ease}.mobile-toc-panel{position:fixed;right:0;top:0;bottom:0;width:300px;max-width:85vw;background:var(--bg-secondary);box-shadow:-4px 0 12px rgba(0,0,0,.15);animation:slideInRight .3s ease;display:flex;flex-direction:column}.mobile-toc-header{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--border-color);background:var(--bg-primary)}.mobile-toc-title{display:flex;align-items:center;gap:8px;font-size:1.1rem;font-weight:600;color:var(--text-primary);margin:0}.mobile-toc-icon{font-size:1.2rem}.mobile-toc-close{width:36px;height:36px;border-radius:50%;border:none;background:var(--bg-tertiary);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.mobile-toc-close:hover{background:var(--border-color)}.mobile-toc-content{flex:1 1;overflow-y:auto;padding:16px 20px}.mobile-toc-list{list-style:none;padding:0;margin:0}.mobile-toc-item{margin-bottom:4px}.mobile-toc-link{display:block;width:100%;text-align:left;background:none;border:none;padding:12px 16px;color:var(--text-primary);font-size:.9rem;line-height:1.5;border-radius:var(--radius-sm);cursor:pointer;transition:background .2s,color .2s;text-decoration:none}.mobile-toc-link:hover{background:var(--bg-tertiary)}.mobile-toc-link.active{background:var(--color-orange);color:white;font-weight:500}.mobile-toc-link[data-level="1"]{padding-left:16px;font-weight:600}.mobile-toc-link[data-level="2"]{padding-left:28px;font-weight:500}.mobile-toc-link[data-level="3"]{padding-left:40px;font-size:.85rem;color:var(--text-secondary)}.mobile-toc-link[data-level="3"].active{color:white}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInRight{0%{transform:translateX(100%)}to{transform:translateX(0)}}@media (max-width:768px){.mobile-toc-button{display:flex}.sidebar-section:first-child{display:none}}[data-theme=dark] .mobile-toc-overlay{background:rgba(0,0,0,.7)}[data-theme=dark] .mobile-toc-button{box-shadow:0 4px 12px rgba(0,0,0,.4)}[data-theme=dark] .mobile-toc-panel{box-shadow:-4px 0 16px rgba(0,0,0,.3)}