.subject-page-brand{text-align:center;margin-bottom:8px;padding:16px 0 0}.subject-page-brand .brand-mark{display:inline-block;font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#3b82f6,#10b981);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0}.subject-nav{text-align:center;font-size:.85rem;color:var(--text-muted);margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}.subject-nav a{color:var(--primary);text-decoration:none;font-weight:600}.subject-nav a:hover{text-decoration:underline}.subject-nav-current{font-weight:700;color:var(--text)}.subject-page-container{max-width:800px}.subject-page-hero{text-align:center;background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:32px 24px;margin-bottom:32px}.subject-page-h1{font-size:1.9rem;margin-bottom:10px}.subject-page-tagline{color:var(--text-muted);font-size:1.05rem;margin-bottom:14px}.subject-page-intro{font-size:.92rem;line-height:1.6;color:var(--text-muted);max-width:620px;margin:0 auto 14px}.subject-page-meta{font-size:.8rem;font-weight:600;color:var(--primary);margin-bottom:18px}.subject-cta{display:inline-block;width:auto!important;padding:12px 28px;text-decoration:none}.subject-branch{margin-bottom:28px}.subject-branch h2{font-size:1.2rem;color:var(--text);margin-bottom:6px}.branch-desc{font-size:.85rem;color:var(--text-muted);line-height:1.5;margin-bottom:14px}.topic-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.topic-list li{background:var(--bg-card);border:1px solid var(--border);border-radius:10px;padding:12px 16px}.topic-class-badge{display:inline-block;background:var(--bg-dark);color:var(--text-muted);font-size:.7rem;font-weight:700;padding:2px 8px;border-radius:10px;margin-left:4px}.topic-desc{font-size:.82rem;color:var(--text-muted);line-height:1.5}.subject-page-footer-cta{text-align:center;padding:24px 0 40px}.subject-page-footer-cta p{margin-top:14px}.subject-page-footer-cta a:not(.subject-cta){color:var(--text-muted);font-size:.88rem;text-decoration:none}.subject-page-footer-cta a:not(.subject-cta):hover{text-decoration:underline}.breadcrumb-nav{margin-bottom:16px}.breadcrumb-list{list-style:none;padding:0;margin:0;display:flex;gap:6px;align-items:center;font-size:.8rem;color:var(--text-muted)}.breadcrumb-list li+li::before{content:"›";margin-right:6px;color:var(--text-muted)}.breadcrumb-list a{color:var(--primary);text-decoration:none}.breadcrumb-list a:hover{text-decoration:underline}.subject-faq{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:28px}.subject-faq h2{font-size:1.1rem;margin-bottom:16px}.faq-list{margin:0}.faq-list dt{font-weight:700;font-size:.9rem;margin-top:14px;color:var(--text)}.faq-list dt:first-child{margin-top:0}.faq-list dd{margin:4px 0 0;font-size:.86rem;color:var(--text-muted);line-height:1.5}@media (max-width:768px){.subject-nav{font-size:.78rem;line-height:1.8}.subject-page-hero{padding:22px 16px}.subject-page-h1{font-size:1.5rem}}