:root{--bg-deep: #050811;--bg-page: #070b16;--bg-card: rgba(10, 15, 29, .82);--bg-card-popular: rgba(12, 20, 39, .95);--bg-card-hover: rgba(16, 25, 48, .9);--border-subtle: rgba(28, 42, 70, .7);--border-glow: rgba(34, 211, 238, .45);--border-popular: rgba(6, 182, 212, .8);--nano-50: #ecfeff;--nano-300: #67e8f9;--nano-400: #22d3ee;--nano-500: #06b6d4;--nano-glow: #38bdf8;--quantum-indigo: #6366f1;--quantum-purple: #8b5cf6;--quantum-glow: #818cf8;--text-white: #ffffff;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--text-dim: #64748b;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-full: 9999px;--shadow-nano-sm: 0 4px 20px rgba(6, 182, 212, .15);--shadow-nano-md: 0 8px 30px rgba(6, 182, 212, .25);--shadow-nano-lg: 0 12px 45px rgba(6, 182, 212, .35);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, 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rgba(6,182,212,.25)}.article-word-count{font-size:.72rem;color:var(--text-dim);font-family:var(--font-mono)}.article-card-title{font-size:1.05rem;font-weight:700;color:var(--text-white);line-height:1.45;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-card-desc{font-size:.84rem;color:var(--text-muted);line-height:1.55;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.article-card-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px}.article-keyword-badge{font-size:.68rem;color:var(--text-secondary);background:#0f172a99;padding:2px 7px;border-radius:4px;border:1px solid var(--border-subtle)}.article-card-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid 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var(--border-subtle);padding-top:14px}.author-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--nano-500),var(--quantum-indigo));display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--text-white);font-size:.9rem}.author-name{font-size:.92rem;font-weight:700;color:var(--text-white)}.author-tag{font-size:.74rem;color:var(--nano-300)}.faq-container{max-width:860px;margin:0 auto}.faq-item{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:all .2s ease}.faq-item:hover{border-color:var(--border-glow)}.faq-question{padding:20px 24px;font-size:1.05rem;font-weight:700;color:var(--text-white);cursor:pointer;display:flex;align-items:center;justify-content:space-between;-webkit-user-select:none;-moz-user-select:none;user-select:none}.faq-icon-arrow{font-size:1.2rem;color:var(--nano-400);transition:transform .3s ease}.faq-item.active .faq-icon-arrow{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s cubic-bezier(0,1,0,1);padding:0 24px;font-size:.92rem;color:var(--text-muted);line-height:1.7}.faq-item.active .faq-answer{max-height:500px;transition:max-height .35s ease-in-out;padding-bottom:22px}.outbound-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}@media(max-width:1024px){.outbound-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:640px){.outbound-grid{grid-template-columns:1fr}}.outbound-card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:18px;text-decoration:none;color:inherit;transition:all .2s 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0}.article-info-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:.82rem;color:var(--text-muted);font-family:var(--font-mono)}.article-takeaway-box{background:#06b6d414;border-left:4px solid var(--nano-400);border-radius:0 var(--radius-md) var(--radius-md) 0;padding:16px 20px;margin-bottom:36px;font-size:.95rem;color:var(--nano-50);line-height:1.6}.article-body h2{font-size:1.6rem;font-weight:800;color:var(--text-white);margin:40px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--border-subtle)}.article-body h3{font-size:1.25rem;font-weight:700;color:var(--nano-300);margin:24px 0 12px}.article-body p{font-size:1.02rem;color:var(--text-secondary);line-height:1.85;margin-bottom:18px}.article-internal-nav{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:24px;margin:45px 0}.article-internal-nav h4{font-size:1.1rem;color:var(--text-white);margin-bottom:14px}.article-internal-links-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}@media(max-width:640px){.article-internal-links-list{grid-template-columns:1fr}}.article-internal-links-list a{color:var(--nano-300);text-decoration:none;font-size:.9rem;padding:8px 12px;border-radius:var(--radius-sm);background:#0f172a99;border:1px solid var(--border-subtle);display:block;transition:all .2s ease}.article-internal-links-list a:hover{background:#06b6d426;border-color:var(--nano-400);color:var(--text-white)}.site-footer{background:#03050c;border-top:1px solid var(--border-subtle);padding:60px 0 30px;position:relative;z-index:10}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:45px}@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.footer-grid{grid-template-columns:1fr}}.footer-col h4{font-size:.95rem;font-weight:700;color:var(--text-white);margin-bottom:16px;letter-spacing:.5px}.footer-links-list{list-style:none}.footer-links-list li{margin-bottom:10px}.footer-links-list a{color:var(--text-muted);text-decoration:none;font-size:.85rem;transition:color .2s ease}.footer-links-list a:hover{color:var(--nano-400)}.footer-bottom-bar{border-top:1px solid rgba(255,255,255,.06);padding-top:25px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:.78rem;color:var(--text-dim)}.footer-bottom-bar a{color:var(--text-dim);text-decoration:none}.footer-bottom-bar a:hover{color:var(--text-muted)}