:root{--primary:#0ea5e9;--primary-dark:#0369a1;--primary-light:#e0f2fe;--primary-muted:#bae6fd;--accent:#38bdf8;--gold:#f59e0b;--bg:#f0f9ff;--bg-card:#fff;--bg-dark:#0c1929;--text:#0c1a2e;--text-muted:#4b6a85;--text-dim:#8aacc8;--border:#cbd5e0;--border-light:#e2eff8;--shadow-sm:0 1px 3px #0ea5e914;--shadow-md:0 4px 16px #0ea5e91f;--shadow-lg:0 8px 32px #0ea5e92e;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;--font-mono:"Courier New", monospace;--max-w:1100px;--max-w-sm:760px;--header-h:60px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.7}img{max-width:100%;height:auto;display:block}a{color:var(--primary-dark);text-decoration:none}a:hover{color:var(--primary)}.container{max-width:var(--max-w);margin:0 auto;padding:0 20px}.container-sm{max-width:var(--max-w-sm);margin:0 auto;padding:0 20px}.header{z-index:100;-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);height:var(--header-h);background:#fffffff2;position:sticky;top:0}.header-inner{max-width:var(--max-w);justify-content:space-between;align-items:center;height:100%;margin:0 auto;padding:0 20px;display:flex}.header-logo{color:var(--text);align-items:center;gap:10px;text-decoration:none;display:flex}.header-logo-icon{background:linear-gradient(135deg, var(--primary), var(--primary-dark));color:#fff;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.1rem;font-weight:900;display:flex;box-shadow:0 2px 8px #0ea5e966}.header-logo-text{font-size:1rem;font-weight:800}.header-logo-text span{color:var(--primary)}.header-nav{align-items:center;gap:4px;display:flex}.header-nav a{color:var(--text-muted);border-radius:var(--radius-sm);padding:6px 12px;font-size:.85rem;font-weight:600;transition:all .15s}.header-nav a:hover{color:var(--primary);background:var(--primary-light)}.header-nav .nav-cta{background:linear-gradient(135deg, var(--primary), var(--primary-dark));color:#fff;border-radius:var(--radius-sm)}.header-nav .nav-cta:hover{background:var(--primary-dark);color:#fff;opacity:.9}@media (max-width:600px){.header-nav .nav-hide{display:none}}.hero{background:linear-gradient(160deg, var(--bg-dark) 0%, #0c2a4a 50%, #0d3a6b 100%);text-align:center;color:#fff;padding:72px 20px 80px;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(at 60% 40%,#38bdf826 0%,#0000 60%);position:absolute;inset:0}.hero-badge{color:var(--accent);letter-spacing:.06em;text-transform:uppercase;background:#38bdf826;border:1px solid #38bdf866;border-radius:100px;align-items:center;gap:6px;margin-bottom:20px;padding:5px 16px;font-size:.8rem;font-weight:600;display:inline-flex}.hero-title{margin-bottom:16px;font-size:clamp(2rem,5vw,3.2rem);font-weight:900;line-height:1.2}.hero-title .hl{color:var(--accent)}.hero-sub{color:#ffffffbf;max-width:560px;margin:0 auto 32px;font-size:clamp(.95rem,2vw,1.1rem);line-height:1.8}.hero-ctas{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.btn-hero-primary{background:linear-gradient(135deg, var(--accent), var(--primary));color:#fff;border-radius:100px;padding:13px 28px;font-size:.95rem;font-weight:700;transition:all .2s;display:inline-block;box-shadow:0 4px 16px #0ea5e966}.btn-hero-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px #0ea5e980}.btn-hero-secondary{color:#fff;background:#ffffff1a;border:1px solid #ffffff4d;border-radius:100px;padding:13px 28px;font-size:.95rem;font-weight:600;transition:all .2s;display:inline-block}.btn-hero-secondary:hover{color:#fff;background:#fff3}.hero-stats{flex-wrap:wrap;justify-content:center;gap:40px;margin-top:48px;display:flex}.hero-stat{text-align:center}.hero-stat-num{color:var(--accent);font-size:2rem;font-weight:900;display:block}.hero-stat-label{color:#fff9;margin-top:2px;font-size:.75rem}.category-bar{border-bottom:1px solid var(--border-light);margin-bottom:36px;padding:28px 0 8px}.category-bar-inner{flex-wrap:wrap;gap:8px;display:flex}.cat-pill{border:1.5px solid var(--border);color:var(--text-muted);background:#fff;border-radius:100px;padding:5px 16px;font-size:.8rem;font-weight:600;text-decoration:none;transition:all .15s;display:inline-block}.cat-pill:hover,.cat-pill.active{background:var(--primary);border-color:var(--primary);color:#fff}.section{padding:40px 0 56px}.section-title{color:var(--text);align-items:center;gap:8px;margin-bottom:24px;font-size:1.3rem;font-weight:800;display:flex}.section-title:after{content:"";background:linear-gradient(to right, var(--primary-light), transparent);border-radius:2px;flex:1;height:2px}.article-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;display:grid}.article-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-md);color:inherit;box-shadow:var(--shadow-sm);flex-direction:column;text-decoration:none;transition:all .2s;display:flex;overflow:hidden}.article-card:hover{box-shadow:var(--shadow-lg);border-color:var(--primary-muted);transform:translateY(-3px)}.article-card-img{aspect-ratio:16/9;background:linear-gradient(135deg, var(--primary-light), var(--primary-muted));width:100%;color:var(--primary);justify-content:center;align-items:center;font-size:2.5rem;display:flex;position:relative;overflow:hidden}.article-card-img img{transition:transform .3s}.article-card:hover .article-card-img img{transform:scale(1.04)}.article-card-body{flex-direction:column;flex:1;gap:8px;padding:18px;display:flex}.article-card-category{color:var(--primary);text-transform:uppercase;letter-spacing:.06em;font-size:.72rem;font-weight:700}.article-card-title{color:var(--text);font-size:.97rem;font-weight:700;line-height:1.5}.article-card:hover .article-card-title{color:var(--primary)}.article-card-excerpt{color:var(--text-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;flex:1;font-size:.82rem;line-height:1.6;display:-webkit-box;overflow:hidden}.article-card-meta{color:var(--text-dim);border-top:1px solid var(--border-light);justify-content:space-between;align-items:center;margin-top:4px;padding-top:10px;font-size:.75rem;display:flex}.article-card-tag{background:var(--primary-light);color:var(--primary-dark);border-radius:4px;padding:2px 8px;font-size:.7rem;font-weight:600}.eco-cta-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin:40px 0;display:grid}.eco-cta-card{border:1.5px solid var(--border-light);border-radius:var(--radius-md);color:var(--text);box-shadow:var(--shadow-sm);background:#fff;align-items:center;gap:14px;padding:16px 18px;text-decoration:none;transition:all .18s;display:flex}.eco-cta-card:hover{border-color:var(--primary);background:var(--primary-light);transform:translate(3px)}.eco-cta-icon{text-align:center;flex-shrink:0;width:40px;font-size:1.8rem}.eco-cta-text{flex:1}.eco-cta-label{color:var(--text-muted);margin-bottom:2px;font-size:.8rem;font-weight:700}.eco-cta-title{color:var(--text);font-size:.95rem;font-weight:700}.eco-cta-arrow{color:var(--text-dim);transition:transform .15s}.eco-cta-card:hover .eco-cta-arrow{color:var(--primary);transform:translate(4px)}.article-layout{grid-template-columns:1fr 280px;align-items:start;gap:40px;display:grid}@media (max-width:900px){.article-layout{grid-template-columns:1fr}.article-sidebar{display:none}}.article-header{margin-bottom:28px}.article-header-category{color:var(--primary);text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px;font-size:.75rem;font-weight:700}.article-header-title{margin-bottom:14px;font-size:clamp(1.4rem,4vw,2.1rem);font-weight:900;line-height:1.35}.article-header-meta{color:var(--text-muted);flex-wrap:wrap;gap:16px;font-size:.8rem;display:flex}.article-body{border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);background:#fff;padding:36px}.prose h2{border-left:4px solid var(--primary);color:var(--text);margin:2.5rem 0 1rem;padding-left:1rem;font-size:1.35rem;font-weight:800}.prose h3{color:var(--text);margin:2rem 0 .75rem;font-size:1.1rem;font-weight:700}.prose p{color:#3a4a5c;margin-bottom:1.4rem;line-height:1.85}.prose ul,.prose ol{margin-bottom:1.4rem;padding-left:1.5rem}.prose li{color:#3a4a5c;margin-bottom:.4rem;line-height:1.7}.prose strong{color:var(--primary-dark);font-weight:700}.prose blockquote{border-left:4px solid var(--primary-muted);background:var(--primary-light);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:1.5rem 0;padding:1rem 1.25rem}.prose blockquote p{color:var(--primary-dark);margin-bottom:0}.prose table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.9rem}.prose th{background:var(--primary);color:#fff;text-align:left;padding:10px 14px;font-weight:700}.prose td{border-bottom:1px solid var(--border-light);color:#3a4a5c;padding:10px 14px}.prose tr:hover td{background:var(--bg)}.article-sidebar{top:calc(var(--header-h) + 20px);position:sticky}.sidebar-card{border:1px solid var(--border-light);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);background:#fff;margin-bottom:16px;padding:20px}.sidebar-card-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px;font-size:.8rem;font-weight:700}.aff-banner{border-radius:var(--radius-md);color:#fff;text-align:center;background:linear-gradient(135deg,#0369a1,#0c1929);margin:32px 0;padding:24px;box-shadow:0 4px 20px #0369a14d}.aff-banner-label{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px;font-size:.75rem;font-weight:600}.aff-banner-title{margin-bottom:6px;font-size:1.1rem;font-weight:800}.aff-banner-desc{color:#ffffffb3;margin-bottom:16px;font-size:.82rem}.aff-banner-btn{background:linear-gradient(135deg, var(--accent), var(--primary));color:#fff;border-radius:100px;padding:10px 24px;font-size:.9rem;font-weight:700;transition:all .2s;display:inline-block}.aff-banner-btn:hover{color:#fff;opacity:.9;transform:translateY(-1px)}.footer{background:var(--bg-dark);color:#ffffffb3;margin-top:60px;padding:48px 0 24px}.footer-inner{max-width:var(--max-w);margin:0 auto;padding:0 20px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:40px;display:grid}@media (max-width:700px){.footer-grid{grid-template-columns:1fr;gap:24px}}.footer-brand{color:#fff;margin-bottom:8px;font-size:1.1rem;font-weight:800}.footer-brand span{color:var(--accent)}.footer-tagline{color:#ffffff80;font-size:.82rem;line-height:1.7}.footer-col-title{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px;font-size:.75rem;font-weight:700}.footer-links{flex-direction:column;gap:8px;display:flex}.footer-links a{color:#fff9;font-size:.85rem;transition:color .15s}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid #ffffff1a;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding-top:20px;font-size:.78rem;display:flex}.footer-a-z{flex-wrap:wrap;gap:10px;display:flex}.footer-a-z a{color:#ffffff80;font-size:.78rem;font-weight:700;transition:color .15s}.footer-a-z a:hover{color:var(--accent)}.badge{border-radius:4px;padding:2px 8px;font-size:.7rem;font-weight:700;display:inline-block}.badge-new{color:#16a34a;background:#dcfce7}.badge-popular{color:#d97706;background:#fef3c7}.badge-hot{color:#dc2626;background:#fee2e2}.divider{background:var(--border-light);height:1px;margin:40px 0}.text-center{text-align:center}@media (max-width:640px){.article-body{padding:20px}.hero{padding:52px 16px 60px}.hero-stats{gap:24px}}