:root{--color-primary:#1e3a5f;--color-primary-dark:#0f2744;--color-accent-red:#dc2626;--color-accent-amber:#d97706;--color-accent-green:#065f46;--color-accent-gray:#374151;--color-accent-purple:#7c3aed;--color-accent-teal:#0e7490;--color-accent-pink:#be185d;--color-link:#2563eb;--color-text:#1a1a1a;--color-text-sub:#64748b;--color-text-muted:#94a3b8;--color-bg:#fafafa;--color-bg-card:#fff;--color-bg-subtle:#f8fafc;--color-border:#e5e7eb;--color-border-light:#f1f5f9;--shadow-card:0 2px 8px rgba(0,0,0,.08),0 0 1px rgba(0,0,0,.04);--shadow-card-hover:0 8px 24px rgba(0,0,0,.14),0 2px 6px rgba(0,0,0,.06);--shadow-cta:0 4px 14px rgba(0,0,0,.25);--shadow-header:0 1px 0 rgba(0,0,0,.06),0 2px 8px rgba(0,0,0,.04);--radius-sm:6px;--radius-card:14px;--radius-btn:10px;--radius-pill:9999px;--transition:all 0.25s ease;--transition-fast:all 0.15s ease}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:var(--font-noto-sans-jp),-apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Oxygen","Ubuntu","Cantarell","Fira Sans","Droid Sans","Helvetica Neue",sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--color-bg);color:var(--color-text);line-height:1.8}a{color:inherit;text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 20px}.article-container{max-width:800px;margin:0 auto;padding:0 20px}.header{background:var(--color-bg-card);box-shadow:var(--shadow-header);border-bottom:1px solid var(--color-border);position:-webkit-sticky;position:sticky;top:0;z-index:100}.header-inner{display:flex;justify-content:space-between;align-items:center;padding:.875rem 0}.logo{font-size:1.2rem;font-weight:800;color:var(--color-primary);letter-spacing:-.03em;white-space:nowrap}.nav{display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap}.nav-link{color:#4b5563;font-weight:500;font-size:.9rem;transition:var(--transition-fast);white-space:nowrap}.nav-link:hover{color:var(--color-link)}.hero{background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);padding:4.5rem 0;text-align:center;margin-bottom:3rem;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 70% 50%,rgba(37,99,235,.15) 0,transparent 60%);pointer-events:none}.hero-title{font-size:clamp(1.8rem,4vw,3rem);font-weight:800;margin-bottom:1.25rem;color:#fff;line-height:1.25;letter-spacing:-.03em}.hero-subtitle{font-size:1.1rem;color:hsla(0,0%,100%,.85);max-width:580px;margin:0 auto;line-height:1.7}.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));grid-gap:1.5rem;gap:1.5rem;margin-bottom:3rem}.article-card{background:var(--color-bg-card);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid var(--color-border-light);transition:var(--transition);height:100%;display:flex;flex-direction:column}.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--color-border)}.article-card-content{padding:1.25rem 1.5rem 1.5rem;flex:1 1;display:flex;flex-direction:column}.article-category{display:inline-block;background:rgba(37,99,235,.08);color:var(--color-link);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:3px 10px;border-radius:var(--radius-pill);margin-bottom:.6rem;border:1px solid rgba(37,99,235,.15)}.article-title{font-size:1.1rem;font-weight:700;margin-bottom:.6rem;line-height:1.45;color:#1e293b;-webkit-line-clamp:2}.article-description,.article-title{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}.article-description{color:var(--color-text-sub);font-size:.875rem;line-height:1.65;margin-bottom:.75rem;flex:1 1;-webkit-line-clamp:3}.article-date{color:var(--color-text-muted);font-size:.8rem;margin-top:auto}.category-list{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:2.5rem}.category-tag{background:var(--color-border-light);color:#475569;padding:.45rem 1.1rem;border-radius:var(--radius-pill);font-weight:600;font-size:.875rem;transition:var(--transition);border:1.5px solid transparent}.category-tag:hover{background:rgba(37,99,235,.06);color:var(--color-link);border-color:rgba(37,99,235,.3)}.article-header{margin-bottom:2.5rem;padding-bottom:1.75rem;border-bottom:1px solid var(--color-border)}.article-page-title{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;margin-bottom:1rem;line-height:1.3;color:#1e293b;letter-spacing:-.02em}.article-meta{display:flex;gap:2rem;flex-wrap:wrap;color:var(--color-text-sub);font-size:.9rem}.article-meta-item{display:flex;align-items:center;gap:.5rem}.article-category-link{color:var(--color-link);font-weight:600;transition:var(--transition-fast)}.article-category-link:hover{opacity:.75}.toc{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border:1px solid var(--color-border);border-left:4px solid var(--color-link);border-radius:var(--radius-card);padding:1.5rem;margin-bottom:2.5rem}.toc-title{font-size:1rem;font-weight:700;margin-bottom:.875rem;color:#1e293b;display:flex;align-items:center;gap:.5rem}.toc-list{list-style:none}.toc-item{margin-bottom:.4rem}.toc-item.level-3{margin-left:1.25rem}.toc-link{color:#475569;transition:var(--transition-fast);display:block;padding:.2rem 0;font-size:.9rem}.toc-link:hover{color:var(--color-link);padding-left:4px}.article-content{font-size:1rem;line-height:1.85;color:#334155}.article-content h2{font-size:1.7rem;font-weight:800;margin:2.75rem 0 1.25rem;color:#1e293b;letter-spacing:-.01em;padding-bottom:.6rem;border-bottom:2px solid var(--color-border)}.article-content h3{font-size:1.3rem;font-weight:700;margin:2.25rem 0 .875rem;color:#1e293b}.article-content p{margin-bottom:1.5rem}.article-content ol,.article-content ul{margin-bottom:1.5rem;padding-left:1.75rem}.article-content li{margin-bottom:.45rem}.article-content strong{font-weight:700;color:#1e293b}.article-content blockquote{border-left:4px solid var(--color-link);padding:.75rem 1.5rem;margin:2rem 0;background:rgba(37,99,235,.04);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#475569}.article-content table{width:100%;border-collapse:collapse;margin-bottom:1.5rem;font-size:.9rem}.article-content th{background:var(--color-primary);color:#fff;padding:.6rem .875rem;text-align:left;font-weight:600}.article-content td{padding:.6rem .875rem;border-bottom:1px solid var(--color-border)}.article-content tr:nth-child(2n) td{background:var(--color-bg-subtle)}.related-section{margin-top:4rem;padding-top:2.5rem;border-top:1px solid var(--color-border)}.related-title{font-size:1.75rem;font-weight:700;margin-bottom:1.75rem;color:#1e293b}.footer{background:#1e293b;color:#e2e8f0;padding:3rem 0;margin-top:5rem}.footer-inner{text-align:center}.footer-links{display:flex;justify-content:center;gap:2rem;margin-bottom:2rem;flex-wrap:wrap}.footer-link{color:#cbd5e1;transition:var(--transition-fast);font-size:.875rem}.footer-link:hover{color:#fff}.footer-copyright{color:var(--color-text-muted);font-size:.8rem}.section-title{font-size:1.875rem;font-weight:800;margin-bottom:1.75rem;color:#1e293b;position:relative;padding-bottom:.875rem}.section-title:after{content:"";position:absolute;bottom:0;left:0;width:48px;height:3px;background:linear-gradient(90deg,var(--color-link) 0,rgba(37,99,235,.3) 100%);border-radius:2px}.cta-button{display:inline-block;background:var(--color-bg-card);color:#1e293b;padding:.875rem 2rem;border-radius:var(--radius-btn);font-weight:700;font-size:1rem;transition:var(--transition);text-decoration:none;box-shadow:var(--shadow-cta)}.cta-button:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.25)}.category-header{background:linear-gradient(135deg,var(--color-primary) 0,var(--color-primary-dark) 100%);color:#fff;padding:2.5rem;border-radius:var(--radius-card);margin-bottom:2rem}@media (max-width:768px){.hero{padding:3rem 0}.hero-title{font-size:1.7rem}.hero-subtitle{font-size:1rem}.article-grid{grid-template-columns:1fr;gap:1rem}.article-page-title{font-size:1.5rem}.nav{gap:.75rem;font-size:.82rem}.logo{font-size:1rem}.section-title{font-size:1.5rem}.footer-links{flex-direction:column;gap:.875rem}.article-content h2{font-size:1.4rem}.article-content h3{font-size:1.15rem}}@media (max-width:480px){.header-inner{flex-wrap:wrap;gap:.5rem}.nav{gap:.5rem;font-size:.78rem}}.SearchBox_search-box__P3Afz{position:relative;width:100%;max-width:400px}.SearchBox_search-input-wrapper__vFWyH{position:relative}.SearchBox_search-input__1kt2H{width:100%;padding:10px 40px 10px 16px;border:1px solid #e5e7eb;border-radius:8px;font-size:14px;transition:all .3s ease}.SearchBox_search-input__1kt2H:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,.1)}.SearchBox_search-icon__Mo9wT{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:#9ca3af;pointer-events:none}.SearchBox_search-results__aH3YQ{position:absolute;top:calc(100% + 8px);left:0;right:0;background:#fff;border:1px solid #e5e7eb;border-radius:8px;box-shadow:0 10px 15px -3px rgba(0,0,0,.1);max-height:400px;overflow-y:auto;z-index:50}.SearchBox_search-loading__vVIc0,.SearchBox_search-no-results__kNOcY{padding:16px;text-align:center;color:#6b7280;font-size:14px}.SearchBox_search-results-list__BMkbb{list-style:none;margin:0;padding:0}.SearchBox_search-results-list__BMkbb li{border-bottom:1px solid #f3f4f6}.SearchBox_search-results-list__BMkbb li:last-child{border-bottom:none}.SearchBox_search-result-item__RZWFX{display:block;padding:12px 16px;transition:background-color .2s ease}.SearchBox_search-result-item__RZWFX:hover{background-color:#f9fafb}.SearchBox_search-result-title__gHpb6{font-size:14px;font-weight:500;color:#1f2937;margin-bottom:4px}.SearchBox_search-result-meta__7JWLp{display:flex;align-items:center;gap:12px;font-size:12px;color:#6b7280}.SearchBox_search-result-category__Udbq5{background-color:#eff6ff;color:#3b82f6;padding:2px 8px;border-radius:4px}@media (max-width:768px){.SearchBox_search-box__P3Afz{max-width:100%}}