:root{--bg-color: #f1f5f9;--text-color: #334155;--text-muted: #64748b;--primary: #0f4c81;--primary-hover: #1e3a8a;--border-color: #e2e8f0;--card-bg: #ffffff;--sidebar-bg: #ffffff;--shadow: 0 4px 6px -1px rgb(0 0 0 / .05), 0 2px 4px -2px rgb(0 0 0 / .05);--radius: 8px;--transition: all .2s ease-in-out}[data-theme=dark]{--bg-color: #0f172a;--text-color: #f8fafc;--text-muted: #94a3b8;--primary: #3b82f6;--primary-hover: #60a5fa;--border-color: #334155;--card-bg: #1e293b;--sidebar-bg: #1e293b;--shadow: 0 10px 15px -3px rgb(0 0 0 / .5), 0 4px 6px -4px rgb(0 0 0 / .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,Noto Sans JP,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-color);transition:background-color .3s ease,color .3s ease;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.container{width:100%;max-width:1280px;margin:0 auto;padding:2rem 1rem}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.site-title{font-size:1.5rem;font-weight:800;color:var(--primary);letter-spacing:-.5px}.theme-toggle{background:var(--card-bg);border:1px solid var(--border-color);color:var(--text-color);padding:.5rem 1rem;border-radius:var(--radius);cursor:pointer;font-weight:600;transition:var(--transition)}.theme-toggle:hover{border-color:var(--primary)}.two-column-layout{display:grid;grid-template-columns:320px 1fr;gap:2rem;align-items:start}@media(max-width:900px){.two-column-layout{grid-template-columns:1fr}}.sidebar{background:var(--sidebar-bg);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow)}.sidebar-section{margin-bottom:2rem}.sidebar-title{font-size:1.1rem;font-weight:700;margin-bottom:1rem;color:var(--text-color);background:#f8fafc;padding:.5rem 1rem;border-radius:4px}[data-theme=dark] .sidebar-title{background:#334155}.sidebar-subtitle{font-size:.8rem;color:var(--text-muted);margin-bottom:.5rem;display:block}.filter-buttons{display:flex;flex-wrap:wrap;gap:.5rem}.filter-btn{background:var(--card-bg);border:1px solid var(--border-color);color:var(--text-color);padding:.4rem .8rem;border-radius:4px;cursor:pointer;font-size:.85rem;font-weight:600;transition:var(--transition)}.filter-btn:hover{background:#f1f5f9}[data-theme=dark] .filter-btn:hover{background:#334155}.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.index-buttons .filter-btn{padding:.4rem;width:2.2rem;height:2.2rem;display:flex;align-items:center;justify-content:center}.search-box{display:flex;gap:.5rem}.input-search{flex:1;padding:.6rem 1rem;font-size:.95rem;border-radius:4px;border:1px solid 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a:hover{color:var(--primary)}.article-desc{font-size:.95rem;color:var(--text-color);margin-bottom:.5rem;line-height:1.5}.article-meta{text-align:right;font-size:.85rem;color:var(--text-muted)}.article-container{display:flex;gap:3rem;align-items:flex-start;width:100%}@media(max-width:1024px){.article-container{flex-direction:column}.toc{width:100%;position:static;margin-top:2rem}}.article-content{flex:1;background:var(--card-bg);padding:3rem;border-radius:var(--radius);border:1px solid var(--border-color);box-shadow:var(--shadow)}.article-content h1{font-size:2.5rem;margin-bottom:1.5rem}.article-content h2{margin-top:2rem;margin-bottom:1rem}.article-content ul,.article-content ol{margin-left:1.5rem;margin-bottom:1rem}.article-content p{margin-bottom:1rem}.article-content blockquote{margin:1.5rem 0;padding:1rem 1.5rem;border-left:4px solid var(--primary);background:var(--bg-color);border-radius:0 var(--radius) var(--radius) 0;color:var(--text-color)}.article-content blockquote p:last-child{margin-bottom:0}.toc{width:320px;flex-shrink:0;position:sticky;top:2rem;background:var(--card-bg);padding:1.5rem;border-radius:var(--radius);border:1px solid var(--border-color)}.badge{display:inline-block;font-size:.75rem;padding:.25rem .75rem;border-radius:12px;background:#0f4c811a;color:var(--primary);margin-bottom:1rem;font-weight:600}[data-theme=dark] .badge{background:#3b82f633}.site-header{background-color:var(--card-bg);box-shadow:0 2px 4px #0000000d;position:sticky;top:0;z-index:100;border-bottom:1px solid var(--border-color)}.header-inner{display:flex;justify-content:space-between;align-items:center;height:70px;max-width:1280px;margin:0 auto;padding:0 20px}.site-logo a{display:flex;align-items:center;gap:8px;text-decoration:none}.logo-img{height:40px;width:auto}.logo-text{font-size:1.2rem;font-weight:700;color:var(--text-color)}.site-nav ul{display:flex;gap:32px;list-style:none;margin:0;padding:0}.site-nav a{color:var(--text-color);font-weight:500;text-decoration:none}.site-nav a:hover{color:var(--primary)}.menu-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-color)}@media(max-width:768px){.site-nav{display:none}.menu-toggle{display:block}.logo-text{display:none}}.article-actions{display:flex;gap:1rem;margin-top:3rem;padding-top:1.5rem;border-top:1px dashed var(--border-color)}.btn-outline{display:inline-block;padding:.6rem 1.5rem;border:1px solid var(--primary);color:var(--primary);border-radius:var(--radius);text-decoration:none;font-weight:500;transition:var(--transition);cursor:pointer;background:transparent;font-family:inherit;font-size:1rem}.btn-outline:hover{background:var(--primary);color:var(--card-bg)}