:root{font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Segoe UI,Microsoft YaHei,Noto Sans SC,sans-serif;font-weight:400;line-height:1.5}body{min-width:320px;min-height:100vh;margin:0}#root{width:100%}:root{--bg-primary:#10131a;--bg-secondary:#171c26;--bg-tertiary:#202839;--surface-raised:#1c2330d1;--text-primary:#f4f1e8;--text-secondary:#b8b1a3;--text-muted:#857f74;--accent-start:#2bd7b4;--accent-end:#ffb454;--accent-coral:#ff6f61;--primary-color:#2bd7b4;--primary-hover:#17b99a;--border-color:#f4f1e821;--shadow-color:#00000057;--glow-color:#2bd7b438;--grid-color:#f4f1e80e}.light-theme{--bg-primary:#f7f2e8;--bg-secondary:#fffaf0;--bg-tertiary:#ece3d2;--surface-raised:#fffaf0e0;--text-primary:#1f2933;--text-secondary:#5d6470;--text-muted:#85806f;--primary-color:#0f9b86;--primary-hover:#087665;--border-color:#1f293321;--shadow-color:#53442d29;--glow-color:#0f9b8629;--grid-color:#1f29330f}*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(90deg, var(--grid-color) 1px, transparent 1px), linear-gradient(var(--grid-color) 1px, transparent 1px), var(--bg-primary);color:var(--text-primary);background-size:44px 44px;font-family:Segoe UI,Microsoft YaHei,Noto Sans SC,sans-serif;transition:background-color .3s,color .3s}.glass{background:var(--surface-raised);border:1px solid var(--border-color);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.neon-text{background:linear-gradient(135deg, var(--accent-start), var(--accent-end));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.neon-border{border-image:linear-gradient(135deg, var(--accent-start), var(--accent-end)) 1}.neon-glow{box-shadow:0 0 20px var(--glow-color)}.search-box{width:100%;position:relative}.search-input{border:1px solid var(--border-color);width:100%;color:var(--text-primary);background:#ffffff0a;border-radius:999px;outline:none;padding:12px 16px;font-size:14px;transition:all .3s}.search-input:focus{border-color:var(--accent-start);box-shadow:0 0 0 4px var(--glow-color)}.search-results{background:var(--surface-raised);border:1px solid var(--border-color);box-shadow:0 20px 50px var(--shadow-color);z-index:100;border-radius:8px;max-height:400px;margin-top:8px;position:absolute;top:100%;left:0;right:0;overflow-y:auto}.search-result-item{cursor:pointer;border-bottom:1px solid var(--border-color);padding:12px 16px;transition:background-color .2s}.search-result-item:last-child{border-bottom:none}.search-result-item:hover{background:var(--bg-tertiary)}.result-title{color:var(--text-primary);margin-bottom:4px;font-weight:600}.result-excerpt{color:var(--text-secondary);font-size:12px}.theme-toggle{border:1px solid var(--border-color);background:var(--surface-raised);width:46px;height:38px;color:var(--text-primary);cursor:pointer;border-radius:999px;padding:0;font-size:18px;transition:all .3s}.theme-toggle:hover{border-color:var(--accent-start);box-shadow:0 0 0 4px var(--glow-color)}.table-of-contents{border:1px solid var(--border-color);background:#ffffff09;border-radius:8px;margin-bottom:24px;padding:14px}.toc-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:12px;font-size:13px;font-weight:800}.toc-list{list-style:none}.toc-item{cursor:pointer;color:var(--text-secondary);border-left:2px solid #0000;margin-left:-12px;padding:7px 0 7px 12px;font-size:14px;transition:all .2s}.toc-item:hover{color:var(--accent-start)}.toc-item.active{color:var(--accent-start);border-left-color:var(--accent-start);font-weight:700}.toc-item.level-2{margin-left:-24px;padding-left:24px}.toc-item.level-3{margin-left:-36px;padding-left:36px}.toc-item.toc-top{color:var(--text-primary);border-bottom:1px solid var(--border-color);margin-bottom:4px;padding-bottom:8px;font-weight:600}.toc-item.toc-top:hover{color:var(--accent-start)}.toc-item.toc-top.active{color:var(--accent-start);border-left-color:var(--accent-start)}.sidebar{background:linear-gradient(180deg, #2bd7b41a, transparent 28%), var(--bg-secondary);border-right:1px solid var(--border-color);z-index:50;width:300px;position:fixed;top:0;bottom:0;left:0;overflow-y:auto;box-shadow:18px 0 60px #00000029}.sidebar-content{flex-direction:column;gap:26px;padding:28px 24px;display:flex}.sidebar-header{border-bottom:1px solid var(--border-color);padding-bottom:22px}.header-top{justify-content:space-between;align-items:center;margin-bottom:4px;display:flex}.logo{letter-spacing:0;margin:0;font-size:25px;font-weight:900}.tagline{max-width:180px;color:var(--text-secondary);font-size:13px;line-height:1.6}.sidebar-section{padding-bottom:12px}.section-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.14em;margin-bottom:12px;font-size:12px;font-weight:800}.category-list{flex-direction:column;gap:4px;list-style:none;display:flex}.category-item{cursor:pointer;color:var(--text-secondary);border-radius:8px;padding:10px 12px 10px 18px;font-size:14px;transition:all .2s;position:relative}.category-item:before{content:"";background:var(--border-color);border-radius:50%;width:4px;height:4px;position:absolute;top:50%;left:6px;transform:translateY(-50%)}.category-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.category-item.active{color:var(--accent-start);background:linear-gradient(90deg,#2bd7b42e,#0000);font-weight:700}.category-item.active:before{background:var(--accent-start)}.tag-cloud{flex-wrap:wrap;gap:8px;display:flex}.tag-item{background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;border-radius:999px;padding:6px 11px;font-size:12px;transition:all .2s}.tag-item:hover{border-color:var(--accent-start);color:var(--accent-start)}.tag-item.active{background:var(--accent-start);color:#10131a;border-color:#0000;font-weight:800}@media (width<=900px){.sidebar{width:100%;max-height:none;position:relative}.sidebar-content{gap:16px;padding:22px}.sidebar-header{padding-bottom:14px}.category-list{flex-flow:wrap}.category-item{padding:8px 12px 8px 18px}.tag-section{max-height:124px;overflow:hidden}}.main-content{min-height:100vh;margin-left:300px;padding:36px clamp(28px,5vw,64px) 56px}@media (width<=900px){.main-content{margin-left:0;padding:20px}}.article-list-page{max-width:1120px;margin:0 auto}.presentation-hero{border:1px solid var(--border-color);background:linear-gradient(135deg, #2bd7b42e, transparent 48%), linear-gradient(315deg, #ffb45442, transparent 38%), var(--surface-raised);box-shadow:0 28px 80px var(--shadow-color);border-radius:8px;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);align-items:stretch;gap:28px;margin-bottom:20px;padding:34px;display:grid;position:relative;overflow:hidden}.presentation-hero:before{content:"";pointer-events:none;border:1px solid #ffffff14;border-radius:6px;position:absolute;inset:16px}.presentation-hero:after{content:"";background:linear-gradient(transparent, var(--border-color), transparent);width:1px;position:absolute;top:18px;bottom:18px;right:30%}.hero-copy{z-index:1;position:relative}.hero-kicker{color:var(--accent-start);letter-spacing:.18em;text-transform:uppercase;align-items:center;gap:8px;margin-bottom:18px;font-size:12px;font-weight:800;display:inline-flex}.hero-kicker:before{content:"";background:var(--accent-start);width:34px;height:2px}.presentation-hero h1{letter-spacing:0;max-width:740px;margin:0;font-size:clamp(42px,6vw,72px);font-weight:900;line-height:1.02}.presentation-hero p{max-width:620px;color:var(--text-secondary);margin:22px 0 0;font-size:18px;line-height:1.8}.hero-panel{z-index:1;border:1px solid var(--border-color);background:linear-gradient(#ffffff14,#0000),#10131a47;border-radius:8px;grid-template-rows:auto 1fr;min-height:260px;padding:18px;display:grid;position:relative}.hero-panel-top{color:var(--text-secondary);justify-content:space-between;align-items:center;font-size:13px;display:flex}.hero-panel-top strong{color:var(--accent-end);font-size:44px;line-height:1}.learning-map{min-height:190px;position:relative}.map-line{background:linear-gradient(90deg, var(--accent-start), var(--accent-end));opacity:.72;transform-origin:0;height:2px;position:absolute}.line-a{width:62%;top:54%;left:17%;transform:rotate(-19deg)}.line-b{width:66%;top:44%;left:18%;transform:rotate(22deg)}.map-node{border:1px solid var(--border-color);background:var(--bg-secondary);min-width:58px;height:58px;color:var(--text-primary);box-shadow:0 14px 28px var(--shadow-color);border-radius:50%;justify-content:center;align-items:center;padding:0 12px;font-size:13px;font-weight:800;display:inline-flex;position:absolute}.node-a{top:52%;left:6%}.node-b{top:18%;left:36%}.node-c{top:32%;right:8%}.node-d{background:var(--accent-end);color:#1f2933;bottom:6%;left:48%}.insight-strip{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:26px;display:grid}.insight-strip div{border:1px solid var(--border-color);background:var(--surface-raised);box-shadow:0 14px 36px var(--shadow-color);border-radius:8px;padding:18px 20px}.insight-strip strong{color:var(--accent-start);margin-bottom:6px;font-size:30px;line-height:1;display:block}.insight-strip span{color:var(--text-secondary);font-size:13px}.article-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.article-card{cursor:pointer;border-radius:8px;min-height:268px;padding:24px;transition:transform .28s,border-color .28s,box-shadow .28s;position:relative;overflow:hidden}.article-card:after{content:"";background:linear-gradient(180deg, var(--accent-start), var(--accent-end));opacity:.76;width:5px;position:absolute;top:0;bottom:0;left:0}.article-card:hover{box-shadow:0 26px 70px var(--shadow-color);border-color:#2bd7b47a;transform:translateY(-4px)}.article-index{color:#8080802e;font-size:58px;font-weight:900;line-height:1;position:absolute;top:14px;right:18px}.article-meta{z-index:1;gap:12px;margin-bottom:14px;padding-right:70px;display:flex;position:relative}.article-category{color:var(--accent-start);font-size:12px;font-weight:800}.article-date{color:var(--text-muted);font-size:12px}.article-title{z-index:1;color:var(--text-primary);margin-bottom:12px;font-size:24px;font-weight:850;line-height:1.35;position:relative}.article-excerpt{z-index:1;color:var(--text-secondary);margin-bottom:18px;line-height:1.7;position:relative}.article-footer{z-index:1;justify-content:space-between;align-items:flex-end;gap:18px;display:flex;position:relative}.article-tags{flex-wrap:wrap;gap:8px;display:flex}.article-tag{border:1px solid var(--border-color);color:var(--text-secondary);background:#ffffff0f;border-radius:999px;padding:5px 10px;font-size:12px}.article-read-time{color:var(--accent-end);flex:none;font-size:12px;font-weight:700}.empty-state{border:1px solid var(--border-color);background:var(--surface-raised);text-align:center;border-radius:8px;margin-top:20px;padding:36px}.empty-state span{color:var(--text-primary);font-size:18px;font-weight:800}.empty-state p{color:var(--text-secondary);margin-top:8px}@media (width<=1100px){.presentation-hero{grid-template-columns:1fr}.presentation-hero:after{display:none}}@media (width<=760px){.presentation-hero{padding:24px}.article-list,.insight-strip{grid-template-columns:1fr}.presentation-hero h1{font-size:40px}}.code-block-wrapper{border:1px solid var(--border-color);box-shadow:0 18px 48px var(--shadow-color);border-radius:8px;margin:24px 0;overflow:hidden}.code-block-header{border-bottom:1px solid var(--border-color);background:#111827;justify-content:space-between;align-items:center;padding:8px 16px;display:flex}.code-language{color:var(--text-secondary);text-transform:uppercase;font-size:12px;font-weight:600}.copy-button{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:999px;padding:4px 12px;font-size:12px;transition:all .2s}.copy-button:hover{border-color:var(--accent-start);color:var(--accent-start)}.article-detail{border:1px solid var(--border-color);background:var(--surface-raised);max-width:920px;box-shadow:0 28px 80px var(--shadow-color);border-radius:8px;margin:0 auto;padding:32px}.back-button{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:999px;align-items:center;gap:8px;margin-bottom:28px;padding:8px 16px;transition:all .2s;display:inline-flex}.back-button:hover{border-color:var(--accent-start);color:var(--accent-start)}.article-header{border-bottom:1px solid var(--border-color);margin-bottom:40px;padding-bottom:34px}.article-detail .article-meta{align-items:center;gap:16px;margin-bottom:16px;display:flex}.article-detail .article-category{color:var(--accent-start);text-transform:uppercase;letter-spacing:.5px;font-size:12px;font-weight:600}.article-detail .article-date,.article-detail .article-read-time{color:var(--text-secondary);font-size:14px}.article-detail .article-title{letter-spacing:0;max-width:820px;margin-bottom:20px;font-size:clamp(34px,5vw,54px);font-weight:900;line-height:1.12}.article-detail .article-tags{flex-wrap:wrap;gap:8px;display:flex}.article-header-footer{justify-content:space-between;align-items:flex-end;gap:18px;display:flex}.article-detail .article-tag{border:1px solid var(--border-color);color:var(--text-secondary);background:#ffffff0f;border-radius:999px;padding:6px 14px;font-size:13px}.article-author{min-width:120px;color:var(--text-secondary);flex:none;justify-items:end;gap:4px;padding:8px 0 2px;font-size:12px;display:grid}.article-author span{color:var(--text-muted)}.article-author strong{color:var(--text-primary);font-size:15px;font-weight:400}.article-content{max-width:820px;font-size:16px;line-height:1.8}.article-content p{color:var(--text-primary);margin-bottom:20px}.article-heading{color:var(--text-primary);margin-top:40px;margin-bottom:16px;scroll-margin-top:28px;font-weight:850}.heading-1{font-size:32px}.heading-2{border-left:4px solid var(--accent-start);padding-left:14px;font-size:24px}.heading-3{font-size:20px}.inline-code{background:var(--bg-secondary);color:var(--accent-start);border-radius:4px;padding:2px 6px;font-family:Fira Code,JetBrains Mono,monospace;font-size:.9em}.article-content ul,.article-content ol{margin:20px 0;padding-left:24px}.article-content li{color:var(--text-primary);margin-bottom:8px}.article-content blockquote{border-left:4px solid var(--accent-end);color:var(--text-secondary);background:#ffb4541a;margin:24px 0;padding:16px 20px}.article-content table{border-collapse:collapse;border:1px solid var(--border-color);border-radius:8px;width:100%;margin:24px 0;overflow:hidden}.article-content th,.article-content td{border-bottom:1px solid var(--border-color);text-align:left;padding:12px 14px}.article-content th{color:var(--text-primary);background:#2bd7b41f}@media (width<=760px){.article-detail{padding:22px}.article-header-footer{flex-direction:column;align-items:flex-start}.article-author{justify-items:start}}.login-container{justify-content:center;align-items:center;min-height:100vh;padding:2rem;display:flex}.login-box{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;width:100%;max-width:400px;padding:2.5rem;box-shadow:0 4px 6px #0000001a}.login-box h1{text-align:center;color:var(--text-primary);margin-bottom:2rem;font-size:1.75rem}.form-group label{color:var(--text-secondary);margin-bottom:.5rem;font-weight:500;display:block}.form-group input{border:1px solid var(--border-color);background:var(--bg-primary);width:100%;color:var(--text-primary);border-radius:8px;padding:.75rem 1rem;font-size:1rem;transition:border-color .2s,box-shadow .2s}.form-group input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #6366f11a}.login-button{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;padding:.75rem;font-size:1rem;font-weight:600;transition:background .2s,transform .1s}.login-button:hover:not(:disabled){background:var(--primary-hover)}.login-button:active:not(:disabled){transform:scale(.98)}.login-button:disabled{opacity:.5;cursor:not-allowed}.home-button{width:100%;color:var(--text-secondary);border:1px solid var(--border-color);cursor:pointer;background:0 0;border-radius:8px;margin-top:.75rem;padding:.75rem;font-size:1rem;font-weight:500;transition:border-color .2s,color .2s,background .2s}.home-button:hover{background:var(--bg-primary);border-color:var(--primary-color);color:var(--text-primary)}.article-list-admin{padding:2rem}.list-header{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.list-header h2{color:var(--text-primary);margin:0}.table-container{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;overflow:hidden}.article-table{border-collapse:collapse;width:100%}.article-table th,.article-table td{text-align:left;border-bottom:1px solid var(--border-color);padding:1rem}.article-table th{background:var(--bg-primary);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.875rem;font-weight:600}.article-table tr:hover{background:var(--bg-primary)}.title-cell{color:var(--text-primary);font-weight:500}.badge{border-radius:9999px;padding:.25rem .75rem;font-size:.75rem;font-weight:600;display:inline-block}.badge-published{color:#22c55e;background:#22c55e1a}.badge-draft{color:#94a3b8;background:#94a3b81a}.actions-cell{gap:.5rem;display:flex}.btn-edit{background:var(--primary-color);color:#fff}.btn-edit:hover{background:var(--primary-hover)}.btn-delete{color:#ef4444;background:#ef44441a}.btn-delete:hover{background:#ef444433}.loading,.error{text-align:center;color:var(--text-secondary);padding:3rem}.error{color:#ef4444}.article-editor{padding:2rem}.editor-header{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.editor-header h2{color:var(--text-primary);margin:0}.editor-form{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:12px;max-width:900px;padding:2rem}.form-row{gap:1rem;display:flex}.form-group{margin-bottom:1.5rem}.form-group.flex-1{flex:1}.form-group label{color:var(--text-secondary);margin-bottom:.5rem;font-size:.875rem;font-weight:500;display:block}.form-group input,.form-group textarea,.form-group select{border:1px solid var(--border-color);background:var(--bg-primary);width:100%;color:var(--text-primary);border-radius:8px;padding:.75rem 1rem;font-size:.9375rem;transition:border-color .2s,box-shadow .2s}.form-group textarea{resize:vertical;font-family:Monaco,Menlo,Ubuntu Mono,monospace;line-height:1.6}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #6366f11a}.form-group select{cursor:pointer}.form-actions{border-top:1px solid var(--border-color);gap:1rem;padding-top:1rem;display:flex}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.error-message{color:#ef4444;background:#ef44441a;border:1px solid #ef44444d;border-radius:8px;margin-bottom:1.5rem;padding:.75rem;font-size:.875rem}.admin-dashboard{background:var(--bg-primary);min-height:100vh}.admin-header{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:1.5rem 2rem;display:flex}.header-left{align-items:center;gap:1.5rem;display:flex}.header-left h1{color:var(--text-primary);margin:0;font-size:1.5rem}.header-right{gap:1rem;display:flex}.btn{cursor:pointer;border:none;border-radius:8px;padding:.625rem 1.25rem;font-size:.9375rem;font-weight:500;transition:all .2s}.btn-back{color:var(--text-secondary);background:0 0;justify-content:center;align-items:center;padding:.5rem;display:flex}.btn-back:hover{color:var(--text-primary)}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--border-color);color:var(--text-primary)}.btn-secondary:hover{background:var(--bg-primary)}.app{background:radial-gradient(circle at 72% 8%, #ffb45429, transparent 26rem), linear-gradient(135deg, #2bd7b41f, transparent 22rem), var(--bg-primary);min-height:100vh}.page-header{margin-bottom:32px}.page-title{margin-bottom:8px;font-size:28px;font-weight:700}.page-subtitle{color:var(--text-secondary);font-size:16px}.filter-indicator{background:var(--bg-secondary);border-radius:8px;justify-content:space-between;align-items:center;margin-bottom:24px;padding:12px 16px;display:flex}.filter-text{color:var(--text-secondary)}.clear-filter{color:var(--accent-start);cursor:pointer;font-size:14px}.content-header{justify-content:flex-end;margin-bottom:24px;display:flex}.admin-link{background:var(--surface-raised);border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;box-shadow:0 12px 30px var(--shadow-color);border-radius:999px;padding:10px 16px;font-size:.875rem;transition:transform .2s,border-color .2s,color .2s}.admin-link:hover{color:var(--primary-color);border-color:var(--primary-color);transform:translateY(-1px)}.loading-container{justify-content:center;align-items:center;height:100vh;display:flex}.loading{color:var(--text-secondary);font-size:1.125rem}