@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=JetBrains+Mono:wght@400;500&display=swap");:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#1a1a25;--bg-hover:#252535;--text-primary:#e8e8ef;--text-secondary:#9898a8;--text-muted:#686878;--accent-primary:#00d4ff;--accent-secondary:#7c3aed;--accent-gradient:linear-gradient(135deg,#00d4ff,#7c3aed);--accent-glow:0 0 20px rgba(0,212,255,.3);--border-color:#2a2a3a;--border-glow:#00d4ff33;--font-sans:"Noto Sans JP",-apple-system,BlinkMacSystemFont,sans-serif;--font-mono:"JetBrains Mono",monospace;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--shadow-card:0 4px 24px rgba(0,0,0,.4);--shadow-hover:0 8px 40px rgba(0,212,255,.15)}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.8}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at 20% 20%,rgba(0,212,255,.08) 0,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(124,58,237,.08) 0,transparent 50%),repeating-linear-gradient(0deg,transparent,transparent 100px,rgba(0,212,255,.02) 0,rgba(0,212,255,.02) 101px),repeating-linear-gradient(90deg,transparent,transparent 100px,rgba(124,58,237,.02) 0,rgba(124,58,237,.02) 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var(--border-glow);border-radius:50px;font-size:.8rem;color:var(--accent-primary);margin-bottom:1.5rem;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.hero-title{font-size:clamp(2.5rem,6vw,4rem);font-weight:700;line-height:1.2;margin-bottom:1.5rem;background:linear-gradient(180deg,#fff,#9898a8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-description{font-size:1.1rem;color:var(--text-secondary);max-width:600px;margin:0 auto}.articles-section{padding:2rem 0}.section-header{justify-content:space-between;margin-bottom:2rem}.section-header,.section-title{display:flex;align-items:center}.section-title{font-size:1.5rem;font-weight:600;gap:.75rem}.section-title:before{content:"";width:4px;height:24px;background:var(--accent-gradient);border-radius:2px}.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));grid-gap:2rem;gap:2rem}.article-card{background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-color);transition:all .4s cubic-bezier(.4,0,.2,1);position:relative}.article-card:before{content:"";position:absolute;inset:0;border-radius:var(--radius-lg);padding:1px;background:var(--accent-gradient);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .4s}.article-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}.article-card:hover:before{opacity:1}.article-image{position:relative;width:100%;height:200px;overflow:hidden}.article-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.article-card:hover .article-image img{transform:scale(1.05)}.article-category{position:absolute;top:1rem;left:1rem;padding:.25rem .75rem;background:rgba(0,212,255,.9);color:#000;font-size:.7rem;font-weight:600;border-radius:50px;text-transform:uppercase;letter-spacing:.05em}.article-content{padding:1.5rem}.article-meta{display:flex;gap:1rem;font-size:.8rem;color:var(--text-muted);margin-bottom:.75rem}.article-title{font-size:1.2rem;font-weight:600;line-height:1.5;margin-bottom:.75rem;-webkit-line-clamp:2}.article-excerpt,.article-title{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden}.article-excerpt{font-size:.9rem;color:var(--text-secondary);line-height:1.7;-webkit-line-clamp:3}.article-tags{display:flex;gap:.5rem;margin-top:1rem;flex-wrap:wrap}.article-tag{padding:.25rem .6rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:4px;font-size:.7rem;color:var(--text-secondary);font-family:var(--font-mono)}.article-page{max-width:800px;margin:0 auto;padding:2rem}.article-header{margin-bottom:3rem}.article-header .article-category{position:static;display:inline-block;margin-bottom:1rem}.article-header .article-title{font-size:clamp(1.8rem,4vw,2.5rem);margin-bottom:1rem;-webkit-line-clamp:unset}.article-header .article-meta{font-size:.9rem;margin-bottom:2rem}.article-featured-image{width:100%;height:400px;border-radius:var(--radius-lg);overflow:hidden;margin-bottom:2rem}.article-featured-image img{width:100%;height:100%;object-fit:cover}.article-body{font-size:1.05rem;line-height:2}.article-body h2{font-size:1.6rem;margin:3rem 0 1.5rem;padding-bottom:.5rem;border-bottom:2px solid var(--border-color);background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.article-body h3{font-size:1.3rem;margin:2rem 0 1rem;color:var(--accent-primary)}.article-body p{margin-bottom:1.5rem;color:var(--text-secondary)}.article-body ol,.article-body ul{margin:1.5rem 0;padding-left:1.5rem;color:var(--text-secondary)}.article-body li{margin-bottom:.5rem}.article-body code{font-family:var(--font-mono);background:var(--bg-secondary);padding:.2rem .5rem;border-radius:4px;font-size:.9em;color:var(--accent-primary)}.article-body pre{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:1.5rem;overflow-x:auto;margin:2rem 0}.article-body pre code{background:none;padding:0}.article-body blockquote{border-left:4px solid var(--accent-primary);padding-left:1.5rem;margin:2rem 0;font-style:italic;color:var(--text-secondary)}.article-body strong{color:var(--text-primary);font-weight:600}.footer{border-top:1px solid var(--border-color);padding:3rem 2rem;margin-top:4rem;text-align:center}.footer-inner{max-width:1400px;margin:0 auto}.footer-logo{font-size:1.2rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.footer-text{color:var(--text-muted);font-size:.85rem}.loading{display:flex;justify-content:center;align-items:center;min-height:400px}.loading-spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:768px){.header{padding:1rem}.header-inner{flex-direction:column;gap:1rem}.nav{gap:1.5rem}.main{padding:2rem 1rem}.hero{padding:2rem 0 3rem}.articles-grid{grid-template-columns:1fr}.article-page{padding:1rem}.article-featured-image{height:250px}}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-secondary)}.empty-state-icon{font-size:4rem;margin-bottom:1rem;opacity:.5}.empty-state-title{font-size:1.5rem;margin-bottom:.5rem;color:var(--text-primary)}.contact-page{max-width:800px;margin:0 auto;padding:2rem}.contact-content{margin-top:2rem}.contact-intro{font-size:1.1rem;color:var(--text-secondary);margin-bottom:3rem;line-height:1.8}.contact-methods{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:1.5rem;gap:1.5rem;margin-bottom:3rem}.contact-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:2rem;text-align:center;transition:all .3s ease}.contact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--accent-primary)}.contact-icon{font-size:2.5rem;margin-bottom:1rem}.contact-card h3{font-size:1.2rem;margin-bottom:.5rem;color:var(--text-primary)}.contact-card p{font-size:.9rem;color:var(--text-secondary);margin-bottom:1rem}.contact-link{display:inline-block;padding:.5rem 1rem;background:var(--accent-gradient);color:#000;border-radius:50px;font-weight:600;font-size:.85rem;transition:transform .2s}.contact-link:hover{transform:scale(1.05)}.contact-note{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:2rem}.contact-note h3{font-size:1.1rem;margin-bottom:1rem;color:var(--accent-primary)}.contact-note ul{list-style:none;padding:0}.contact-note li{color:var(--text-secondary);padding:.5rem 0 .5rem 1.5rem;position:relative}.contact-note li:before{content:"✓";position:absolute;left:0;color:var(--accent-primary)}