:root{--primary:#e11d48;--primary-light:#f43f5e;--bg-light:#fff1f2;--bg-white:#fff;--text-dark:#1f2937;--text-secondary:#6b7280;--border:#e5e7eb;--accent:#8b5cf6}*{box-sizing:border-box;margin:0;padding:0}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-white);color:var(--text-dark);line-height:1.8}[data-theme="dark"]{--bg-white:#0f0f12;--bg-light:#1a1a22;--text-dark:#f0f0f5;--text-secondary:#9ca3af;--border:rgba(255,255,255,0.1)}.article-container{max-width:720px;margin:0 auto;padding:40px 24px}.back-link{display:inline-flex;align-items:center;gap:8px;color:var(--primary);text-decoration:none;margin-bottom:32px;font-weight:500}.back-link:hover{opacity:.8}.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:24px;color:var(--text-secondary);font-size:.9rem}.category-badge{background:var(--primary);color:white;padding:6px 14px;border-radius:999px;font-size:.8rem;font-weight:600;text-transform:uppercase}h1{font-size:clamp(2rem,4vw,2.5rem);font-weight:800;margin-bottom:24px;line-height:1.2}.article-intro{font-size:1.2rem;color:var(--text-secondary);margin-bottom:40px;padding-bottom:32px;border-bottom:1px solid var(--border);line-height:1.7}h2{font-size:1.5rem;margin:48px 0 20px}h3{font-size:1.2rem;margin:32px 0 12px}p{margin-bottom:20px}ul,ol{margin-bottom:24px;padding-left:24px}li{margin-bottom:10px}strong{color:inherit}a{color:var(--primary);text-decoration:none}a:hover{opacity:.8}.insight-box{background:#f5f3ff;border-left:4px solid var(--accent);border-radius:0 12px 12px 0;padding:20px 24px;margin:28px 0}[data-theme="dark"] .insight-box{background:rgba(139,92,246,0.08)}.insight-box h4{color:var(--accent);margin-bottom:8px}.insight-box p{margin-bottom:0}.tip-box{background:linear-gradient(135deg,#fff1f2 0,#fee2e2 100%);border-left:4px solid var(--primary);padding:20px 24px;margin:28px 0;border-radius:0 12px 12px 0}[data-theme="dark"] .tip-box{background:rgba(225,29,72,0.08)}.tip-box h4{color:var(--primary);margin-bottom:8px}.tip-box p{margin-bottom:0}.numbered-list{counter-reset:steps;list-style:none;padding-left:0}.numbered-list li{counter-increment:steps;padding:16px 20px 16px 60px;position:relative;background:var(--bg-light);border-radius:12px;margin-bottom:12px}[data-theme="dark"] .numbered-list li{background:rgba(255,255,255,0.03)}.numbered-list li::before{content:counter(steps);position:absolute;left:16px;top:16px;width:32px;height:32px;background:var(--primary);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}.highlight-box{background:#f5f3ff;border-left:4px solid var(--accent);border-radius:0 12px 12px 0;padding:20px 24px;margin:28px 0}[data-theme="dark"] .highlight-box{background:rgba(139,92,246,0.08)}.highlight-box h4{color:var(--accent);margin-bottom:8px}.highlight-box p{margin-bottom:0}.comparison-table{width:100%;border-collapse:collapse;margin:32px 0;font-size:.9rem}.comparison-table th{background:var(--bg-light);padding:14px 16px;text-align:left;font-weight:600;color:var(--text-dark);border-bottom:2px solid var(--border)}[data-theme="dark"] .comparison-table th{background:rgba(255,255,255,0.05)}.comparison-table td{padding:14px 16px;border-bottom:1px solid var(--border);color:var(--text-secondary)}.comparison-table tr:hover td{background:var(--bg-light)}[data-theme="dark"] .comparison-table tr:hover td{background:rgba(255,255,255,0.02)}.cta-box{background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:20px;padding:40px;text-align:center;margin:48px 0;color:white}.cta-box h3{color:white;margin-bottom:12px;font-size:1.5rem}.cta-box p{color:rgba(255,255,255,0.9);margin-bottom:20px}.cta-button{display:inline-block;background:white;color:var(--primary);padding:14px 32px;border-radius:999px;text-decoration:none;font-weight:700;transition:transform .2s}.cta-button:hover{transform:translateY(-2px)}.author-box{display:flex;align-items:center;gap:16px;background:var(--bg-light);border-radius:16px;padding:24px;margin-top:48px}.author-avatar{width:56px;height:56px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.author-info h4{margin-bottom:4px}.author-info p{margin:0;color:var(--text-secondary);font-size:.9rem}.article-header-nav{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}[data-theme="dark"] .article-header-nav{background:rgba(15,15,18,0.95)}.header-logo{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none}.header-links{display:flex;gap:20px}.header-links a{color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:.95rem}.header-links a:hover{color:var(--primary)}.article-nav{display:flex;justify-content:space-between;align-items:center;padding:24px 0;margin-top:32px;border-top:1px solid var(--border)}.article-nav a{display:inline-flex;align-items:center;gap:8px;color:var(--primary);text-decoration:none;font-weight:600;font-size:.95rem;padding:12px 20px;border-radius:12px;background:var(--bg-light);transition:all .2s}.article-nav a:hover{background:var(--primary);color:white}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(12px);border-top:1px solid #e5e7eb;padding:8px 0;padding-bottom:max(8px,env(safe-area-inset-bottom));z-index:1000}[data-theme="dark"] .bottom-nav{background:rgba(15,15,18,0.98);border-color:rgba(255,255,255,0.1)}.bottom-nav-inner{display:flex;justify-content:space-around;align-items:center;max-width:480px;margin:0 auto}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 16px;color:#6b7280;text-decoration:none;font-size:.7rem;font-weight:500;border-radius:12px}[data-theme="dark"] .nav-item{color:#9ca3af}.nav-item svg{width:24px;height:24px;stroke-width:1.5}.nav-item:hover,.nav-item.active{color:#e11d48}.nav-item.active svg{stroke-width:2}@media(max-width:600px){.header-links{gap:12px}.header-links a{font-size:.85rem}.article-nav{flex-direction:column;gap:12px}.article-nav a{width:100%;justify-content:center}.article-container{padding-bottom:100px}}