.page-hero { position:relative; text-align:center; margin:0 0 2rem 0; background-image: linear-gradient(135deg, rgba(11,102,255,0.15), rgba(42,160,255,0.15)), url('/static/hero/tech-background-2.jpg'); background-size:cover; background-position:center; border-radius:12px; color:#fff; min-height:320px; display:flex; align-items:center; overflow:hidden; box-shadow:0 12px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08); }
  .page-hero::before { content:""; position:absolute; inset:0; background:linear-gradient(180deg, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.6) 100%); z-index:1; }
  .page-hero .hero-content { position:relative; z-index:2; width:100%; padding:3rem 1.5rem; max-width:900px; margin:0 auto; }
  .page-hero h1 { margin:0 0 1rem 0; font-size:2.5rem; font-weight:800; letter-spacing:-0.02em; text-shadow:0 2px 12px rgba(0,0,0,0.3); line-height:1.15; }
  .page-hero .hero-tagline { font-size:1.15rem; font-weight:500; color:rgba(255,255,255,0.98); max-width:64ch; margin:0 auto; text-shadow:0 1px 6px rgba(0,0,0,0.3); }
  @media (max-width:768px) { .page-hero { min-height:240px; } .page-hero h1 { font-size:1.85rem; } .page-hero .hero-tagline { font-size:1.02rem; } }

  .series-nav { display:flex; flex-wrap:wrap; gap:0.5rem; align-items:center; padding:1rem 0; margin-bottom:1.5rem; border-bottom:1px solid rgba(15,23,42,0.08); }
  .series-label { font-weight:700; font-size:0.88rem; color:var(--muted); margin-right:0.25rem; white-space:nowrap; }
  .series-link { font-size:0.85rem; font-weight:600; padding:0.3rem 0.75rem; border-radius:6px; text-decoration:none; color:var(--brand,#0b66ff); background:rgba(11,102,255,0.06); transition:background 0.15s; white-space:nowrap; }
  .series-link:hover { background:rgba(11,102,255,0.12); }
  .series-link.active { background:var(--brand,#0b66ff); color:#fff; }

  .hc-section { margin:0 0 2.5rem 0; }
  .hc-section h2 { font-size:1.45rem; font-weight:700; margin:0 0 1rem 0; padding-bottom:0.5rem; border-bottom:2px solid rgba(11,102,255,0.15); }
  .hc-section h3 { font-size:1.1rem; font-weight:600; margin:1.25rem 0 0.5rem 0; }
  .hc-section p { max-width:72ch; line-height:1.7; }
  .hc-section ul, .hc-section ol { max-width:72ch; line-height:1.7; padding-left:1.5rem; }
  .hc-section li { margin-bottom:0.4rem; }

  .step-grid { display:grid; grid-template-columns:1fr; gap:1.25rem; margin:1.5rem 0; max-width:760px; }
  .step-card { display:grid; grid-template-columns:3.2rem 1fr; gap:1rem; align-items:start; border:1px solid rgba(11,102,255,0.12); border-radius:10px; padding:1.25rem; background:linear-gradient(180deg,#fff,#f8faff); }
  .step-num { display:flex; align-items:center; justify-content:center; width:2.5rem; height:2.5rem; border-radius:50%; background:var(--brand,#0b66ff); color:#fff; font-weight:800; font-size:1.1rem; flex-shrink:0; }
  .step-card h3 { margin:0 0 0.3rem 0; font-size:1.05rem; }
  .step-card p { font-size:0.95rem; color:var(--muted); margin:0; line-height:1.65; }

  .tip-card { border-left:4px solid var(--brand,#0b66ff); border-radius:0 10px 10px 0; padding:1rem 1.25rem; background:rgba(11,102,255,0.04); margin:1rem 0; }
  .tip-card strong { color:var(--brand,#0b66ff); }
  .tip-card p { margin:0.3rem 0 0; font-size:0.95rem; color:var(--muted); }

  .gene-table { width:100%; border-collapse:collapse; margin:1rem 0; font-size:0.95rem; }
  .gene-table th, .gene-table td { padding:0.7rem 1rem; text-align:left; border-bottom:1px solid rgba(0,0,0,0.06); }
  .gene-table th { font-weight:700; background:#f8faff; white-space:nowrap; }
  .gene-table tr:hover td { background:rgba(11,102,255,0.03); }
  @media (max-width:640px) { .gene-table { font-size:0.85rem; } .gene-table th, .gene-table td { padding:0.5rem 0.6rem; } }

  .screenshot-strip { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:1rem; margin:1.25rem 0; }
  .screenshot-strip img { width:100%; border-radius:10px; border:1px solid rgba(0,0,0,0.08); box-shadow:0 4px 12px rgba(0,0,0,0.06); cursor:pointer; transition:transform 0.15s ease, box-shadow 0.15s ease; }
  .screenshot-strip img:hover { transform:scale(1.02); box-shadow:0 6px 20px rgba(0,0,0,0.12); }
  .screenshot-strip figcaption { text-align:center; font-size:0.85rem; color:var(--muted); margin-top:0.4rem; }
  .featured-screenshot { margin:1.5rem auto; max-width:720px; text-align:center; }
  .featured-screenshot img { width:100%; border-radius:10px; border:1px solid rgba(0,0,0,0.08); box-shadow:0 6px 20px rgba(0,0,0,0.08); cursor:pointer; transition:transform 0.15s ease, box-shadow 0.15s ease; }
  .featured-screenshot img:hover { transform:scale(1.01); box-shadow:0 8px 28px rgba(0,0,0,0.12); }
  .featured-screenshot figcaption { text-align:center; font-size:0.85rem; color:var(--muted); margin-top:0.5rem; }

  .faq-list { margin:1rem 0; }
  .faq-item { border:1px solid rgba(15,23,42,0.08); border-radius:10px; padding:1.25rem; margin-bottom:0.75rem; background:#fff; }
  .faq-item summary { font-weight:600; font-size:1.05rem; cursor:pointer; list-style:none; display:flex; align-items:center; gap:0.5rem; }
  .faq-item summary::before { content:"▸"; font-size:0.85rem; color:var(--brand,#0b66ff); transition:transform 0.2s; }
  .faq-item[open] summary::before { transform:rotate(90deg); }
  .faq-item p { margin:0.75rem 0 0 0; font-size:0.95rem; line-height:1.7; color:var(--muted); max-width:72ch; }

  .cta-section { background:linear-gradient(135deg, rgba(11,102,255,0.08), rgba(42,160,255,0.08)); border-radius:10px; padding:2rem; margin:2rem 0 0; text-align:center; }
  .cta-section h2 { font-size:1.4rem; font-weight:700; margin:0 0 0.5rem 0; border:none; padding:0; }
  .cta-section p { margin:0 0 1rem 0; color:var(--muted); max-width:56ch; display:inline-block; }
  .cta-actions { margin-top:0.5rem; display:flex; gap:12px; flex-wrap:wrap; justify-content:center; }

  .lightbox-overlay { display:none; position:fixed; inset:0; z-index:9999; background:rgba(0,0,0,0.85); align-items:center; justify-content:center; cursor:zoom-out; padding:1.5rem; }
  .lightbox-overlay.active { display:flex; }
  .lightbox-overlay img { max-width:95vw; max-height:92vh; border-radius:10px; box-shadow:0 8px 40px rgba(0,0,0,0.4); object-fit:contain; }
  .lightbox-close { position:absolute; top:1rem; right:1.5rem; background:none; border:none; color:#fff; font-size:2rem; cursor:pointer; line-height:1; opacity:0.8; }
  .lightbox-close:hover { opacity:1; }
  .lightbox-caption { position:absolute; bottom:1.25rem; left:50%; transform:translateX(-50%); color:rgba(255,255,255,0.9); font-size:0.95rem; text-align:center; background:rgba(0,0,0,0.5); padding:0.4rem 1rem; border-radius:6px; max-width:90vw; }