/* ========== RESET & BASE ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; color: #1a1a2e; background: #fff; line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

/* ========== LAYOUT ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.bg-light { background: #f8f9ff; }
.center { text-align: center; }
.mt-2 { margin-top: 32px; }

/* ========== SIDEBAR NAV ========== */
.sidebar {
  position: fixed; top: 0; left: 0; width: 260px; height: 100vh;
  background: #f5f6f8; color: #333; z-index: 1000;
  display: flex; flex-direction: column; overflow-y: auto;
  border-right: 1px solid #e0e0e0;
  transition: transform 0.3s ease;
}
.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid #e0e0e0;
}
.sidebar-close { display: none; background: none; border: none; color: #999; font-size: 1.4rem; cursor: pointer; float: right; }
.sidebar-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.sidebar-logo-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px; flex-shrink: 0;
}
.sidebar-logo-text { font-size: 1.05rem; font-weight: 700; color: #1a1a2e; line-height: 1.3; }
.sidebar-logo-text small { display: block; font-size: 0.7rem; font-weight: 400; color: #888; letter-spacing: 0.3px; }
.sidebar-nav { flex: 1; padding: 16px 0; overflow-y: auto; }
.nav-group { margin-bottom: 20px; }
.nav-group:last-of-type { margin-bottom: 0; }
.nav-group-header {
  padding: 0 20px; margin-bottom: 4px;
  font-size: 0.68rem; font-weight: 700; color: #999;
  letter-spacing: 0.8px; text-transform: uppercase;
}
.nav-item {
  display: block; padding: 9px 20px 9px 20px;
  font-size: 0.9rem; font-weight: 600; color: #333;
  text-decoration: none;
  transition: background 0.15s, color 0.2s;
  border-left: 3px solid transparent;
}
.nav-item:hover { background: #e8edf5; color: #2563eb; border-left-color: #2563eb; }
.nav-item--active { background: #e8edf5; color: #2563eb; border-left-color: #2563eb; }
.sidebar-footer {
  padding: 12px 20px 16px;
  border-top: 1px solid #e0e0e0;
}
.btn-quote {
  display: block; width: 100%; padding: 12px 0;
  text-align: center; text-decoration: none;
  background: #f59e0b; color: #fff;
  font-size: 0.95rem; font-weight: 700;
  border-radius: 8px;
  transition: background 0.2s;
}
.btn-quote:hover { background: #d97706; }
/* Mobile toggle */
.sidebar-toggle {
  display: none; position: fixed; top: 12px; left: 12px; z-index: 1001;
  background: #f59e0b; color: #fff; border: none; border-radius: 8px;
  font-size: 1.4rem; padding: 8px 12px; cursor: pointer;
}
/* Fixed CTA button (top-right, all pages) */
.fixed-cta {
  position: fixed; top: 12px; right: 12px; z-index: 1001;
  background: #f59e0b; color: #fff; border: none; border-radius: 8px;
  padding: 10px 18px; cursor: pointer; font-size: 14px; font-weight: 600;
  text-decoration: none; display: inline-flex; align-items: center; gap: 4px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
  transition: background 0.2s, transform 0.15s;
}
.fixed-cta:hover { background: #d97706; transform: translateY(-1px); }
.fixed-cta:active { transform: translateY(0); }
@media (max-width: 640px) {
  .fixed-cta { padding: 8px 14px; font-size: 13px; right: 8px; top: 8px; }
}
.sidebar-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4);
  z-index: 999;
}
body { padding-left: 260px; }

/* ========== BUTTONS ========== */
.btn { display: inline-block; padding: 12px 28px; border-radius: 8px; font-weight: 600; font-size: 1rem; transition: all 0.2s; }
.btn-primary { background: #2563eb; color: #fff; }
.btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); }
.btn-outline { border: 2px solid #2563eb; color: #2563eb; }
.btn-outline:hover { background: #2563eb; color: #fff; }
.btn-white { background: #fff; color: #2563eb; font-weight: 700; }
.btn-white:hover { background: #f0f4ff; }

/* ========== HERO ========== */
.hero { background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #7c3aed 100%); color: #fff; padding: 80px 0; }
.hero-inner { display: flex; align-items: center; gap: 60px; }
.hero-text { flex: 1; }
.badge { display: inline-block; background: rgba(255,255,255,0.2); padding: 6px 16px; border-radius: 50px; font-size: 0.85rem; margin-bottom: 20px; }
.hero-text h1 { font-size: 3rem; line-height: 1.2; margin-bottom: 20px; font-weight: 800; }
.highlight { color: #fbbf24; }
.hero-text p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 32px; max-width: 520px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 40px; }
.stat strong { display: block; font-size: 2rem; font-weight: 800; color: #fbbf24; }
.stat span { font-size: 0.85rem; opacity: 0.8; }
.hero-img { flex-shrink: 0; }
.hero-card { background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.2); border-radius: 20px; padding: 48px; text-align: center; }
.hero-icon { font-size: 5rem; margin-bottom: 16px; }
.hero-card p { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
.hero-card small { opacity: 0.75; }

/* ========== SECTION TITLES ========== */
.section-title { font-size: 2rem; font-weight: 800; text-align: center; margin-bottom: 12px; }
.section-sub { text-align: center; color: #666; font-size: 1.05rem; margin-bottom: 48px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ========== GRIDS ========== */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* ========== CARDS ========== */
.card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 32px 24px; text-align: center; transition: box-shadow 0.2s; }
.card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.card-icon { font-size: 2.5rem; margin-bottom: 16px; }
.card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.card p { color: #666; font-size: 0.95rem; }

/* ========== PRODUCT CARDS ========== */
.product-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 32px; text-align: center; transition: all 0.2s; }
.product-card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.product-img { font-size: 4rem; margin-bottom: 16px; }
.product-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.product-card p { color: #666; font-size: 0.95rem; margin-bottom: 16px; }
.product-card a { color: #2563eb; font-weight: 600; }

/* ========== HOW IT WORKS ========== */
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 16px; flex-wrap: wrap; }
.step { flex: 1; min-width: 160px; text-align: center; padding: 24px; }
.step-num { width: 48px; height: 48px; background: #2563eb; color: #fff; border-radius: 50%; font-size: 1.4rem; font-weight: 800; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step p { color: #666; font-size: 0.9rem; }
.step-arrow { font-size: 2rem; color: #cbd5e1; align-self: center; padding-top: 0; }

/* ========== TESTIMONIALS ========== */
.testimonial { background: #fff; border-radius: 12px; padding: 32px; border-left: 4px solid #2563eb; }
.testimonial p { color: #444; font-style: italic; margin-bottom: 16px; }
.testimonial strong { color: #1a1a2e; font-size: 0.9rem; }

/* ========== CTA ========== */
.cta { background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%); color: #fff; }
.cta h2 { font-size: 2rem; margin-bottom: 16px; }
.cta p { opacity: 0.9; margin-bottom: 32px; font-size: 1.05rem; }

/* ========== FOOTER ========== */
.footer { background: #1a1a2e; color: #aaa; padding: 60px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
.footer-col a, .footer-col p { display: block; margin-bottom: 8px; font-size: 0.9rem; color: #aaa; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #2d2d4e; text-align: center; padding: 20px 0; font-size: 0.85rem; }

/* ========== PAGE HERO ========== */
.page-hero { background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%); color: #fff; padding: 60px 0; text-align: center; }
.page-hero h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 12px; }
.page-hero p { opacity: 0.85; font-size: 1.1rem; }

/* ========== PRODUCT DETAIL ========== */
.product-detail { background: #fff; border: 1px solid #e5e7eb; border-radius: 16px; padding: 40px; margin-bottom: 32px; display: flex; gap: 40px; align-items: flex-start; }
.product-detail-img { font-size: 6rem; flex-shrink: 0; }
.product-detail h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 12px; }
.product-detail p { color: #555; margin-bottom: 16px; }
.spec-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.spec-table td { padding: 8px 12px; border: 1px solid #e5e7eb; font-size: 0.9rem; }
.spec-table td:first-child { background: #f8f9ff; font-weight: 600; width: 40%; }

/* ========== ABOUT ========== */
.about-grid { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; max-width: 800px; margin: 0 auto; }
.about-text h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.about-text p { color: #555; margin-bottom: 16px; }
.cert-grid { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }
.cert { background: #f0f4ff; border-radius: 8px; padding: 8px 16px; font-size: 0.9rem; font-weight: 600; color: #2563eb; }

/* ========== BLOG ========== */
.blog-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; overflow: hidden; transition: all 0.2s; }
.blog-card:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.blog-img { background: linear-gradient(135deg, #dbeafe, #ede9fe); height: 180px; display: flex; align-items: center; justify-content: center; font-size: 3.5rem; }
.blog-body { padding: 24px; }
.blog-tag { font-size: 0.75rem; background: #dbeafe; color: #2563eb; padding: 4px 10px; border-radius: 50px; font-weight: 600; }
.blog-body h3 { font-size: 1.1rem; font-weight: 700; margin: 12px 0 8px; }
.blog-body p { color: #666; font-size: 0.9rem; margin-bottom: 16px; }
.blog-body a { color: #2563eb; font-weight: 600; font-size: 0.9rem; }

/* ========== CONTACT ========== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; }
.contact-info h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 16px; }
.contact-info p { color: #555; margin-bottom: 24px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 20px; align-items: flex-start; }
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-item strong { display: block; font-size: 0.9rem; color: #888; margin-bottom: 2px; }
.contact-item span { color: #1a1a2e; font-weight: 500; }
.contact-form { background: #f8f9ff; border-radius: 16px; padding: 40px; }
.contact-form h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 6px; color: #444; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border: 1px solid #d1d5db; border-radius: 8px;
  font-size: 0.95rem; font-family: inherit; outline: none; transition: border 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: #2563eb; }
.form-group textarea { resize: vertical; min-height: 120px; }
.btn-submit { width: 100%; padding: 14px; background: #2563eb; color: #fff; border: none; border-radius: 8px; font-size: 1rem; font-weight: 700; cursor: pointer; transition: background 0.2s; }
.btn-submit:hover { background: #1d4ed8; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .page-hero h1 { font-size: 2rem; }
}
@media (max-width: 768px) {
  .hero-inner { flex-direction: column; text-align: center; }
  .hero-text h1 { font-size: 1.8rem; }
  .hero-stats { justify-content: center; gap: 16px; }
  .hero-stats .stat strong { font-size: 1.3rem; }
  .hero-btns { justify-content: center; }
  .hero-img { display: none; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .product-detail { flex-direction: column; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); }
  .form-row { grid-template-columns: 1fr; }
  body { padding-left: 0; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: block; }
  .sidebar-toggle { display: block; }
  .sidebar-overlay.open { display: block; }
  .footer-inner { grid-template-columns: 1fr; }
  .contact-info { text-align: center; }
  .section { padding: 40px 0; }
  .section-title { font-size: 1.5rem; }
  .section-sub { font-size: 0.9rem; margin-bottom: 28px; }
  .hero-text p { font-size: 0.95rem; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-text h1 { font-size: 1.5rem; }
  .hero { padding: 48px 0; }
  .hero-stats { gap: 10px; flex-wrap: wrap; }
  .hero-stats .stat { min-width: 80px; }
  .hero-stats .stat strong { font-size: 1.1rem; }
  .hero-stats .stat span { font-size: 0.7rem; }
  .page-hero { padding: 36px 0; }
  .page-hero h1 { font-size: 1.5rem; }
  .page-hero p { font-size: 0.9rem; }
  .product-detail { padding: 20px; }
  .spec-table td { font-size: 0.8rem; }
  .contact-form { padding: 20px; }
  .blog-body { padding: 16px; }
  .stat strong { font-size: 1.3rem; }
  .footer-col { text-align: center; }
}

/* ========== DETAILS ========== */
details summary { list-style: none; cursor: pointer; color: #1a1a2e; }
details summary::-webkit-details-marker { display: none; }

/* ========== GALLERY ========== */
.product-detail-img img { width:100%; max-height:320px; object-fit:contain; border-radius:12px; display:block; }
.gallery-thumbs { display:flex; gap:8px; margin-top:10px; flex-wrap:wrap; }
.gallery-thumbs img { width:64px; height:64px; object-fit:cover; border-radius:8px; border:2px solid transparent; cursor:pointer; }

/* ========== PRICE REFERENCE ========== */
.price-ref { background:#f0f4ff; border-radius:10px; padding:16px; margin:14px 0; }
.price-ref .pt { display:flex; align-items:center; gap:10px; margin-bottom:10px; }
.price-ref .tag { background:#2563eb; color:#fff; padding:2px 10px; border-radius:4px; font-size:11px; font-weight:700; }
.price-ref .val { font-size:1.1rem; font-weight:800; color:#1a1a2e; }
.price-ref .hs { display:flex; gap:10px; flex-wrap:wrap; font-size:0.85rem; }
.price-ref .hs-item { background:#fff; border-radius:6px; padding:5px 10px; display:flex; flex-direction:column; }
.price-ref .sz { color:#555; font-size:0.8rem; }
.price-ref .pr { color:#2563eb; font-weight:700; font-size:0.85rem; }
.price-ref .lnk { display:block; margin-top:10px; font-size:0.85rem; color:#2563eb; font-weight:600; }

@media (max-width: 480px) {
  .price-ref .hs { flex-direction:column; }
  .gallery-thumbs { gap:6px; }
  .gallery-thumbs img { width:48px; height:48px; }
}

/* ========== DROPDOWN NAV ========== */
.nav-item { position: relative; }
.nav-item > a { display: flex; align-items: center; gap: 4px; cursor: pointer; }
.nav-item > a::after { content: "▾"; font-size: 10px; transition: transform .2s; }
.nav-item:hover > a::after { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(8px);
  background: #fff; border: 1px solid #e5e7eb; border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,.1); min-width: 220px;
  opacity: 0; visibility: hidden; transition: all .2s ease;
  padding: 8px 0; z-index: 200;
}
.nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

.dropdown-wide { min-width: 520px; display: grid; grid-template-columns: 1fr 1fr; padding: 16px; gap: 4px; }
.dropdown-wide .drop-group h4 { font-size: 11px; color: #2563eb; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; margin: 8px 0 4px 12px; }
.dropdown-wide .drop-group h4:first-child { margin-top: 0; }
.dropdown a { display: block; padding: 8px 16px; font-size: .9rem; color: #444; transition: all .15s; border-radius: 6px; margin: 0 4px; }
.dropdown a:hover { background: #eef2ff; color: #2563eb; }
.dropdown a small { display: block; font-size: 11px; color: #999; margin-top: 1px; }
.dropdown-single { min-width: 200px; }

/* ========== PE BAGS PAGE STYLES ========== */
.product-hero { background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #7c3aed 100%); color: #fff; padding: 60px 0; }
.product-hero-inner { display: flex; align-items: center; gap: 50px; }
.product-hero-text { flex: 1; }
.product-hero-text h1 { font-size: 2.4rem; line-height: 1.2; font-weight: 800; margin-bottom: 16px; }
.product-hero-desc { font-size: 1rem; opacity: .9; line-height: 1.7; margin-bottom: 24px; }
.hero-stats-row { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 28px; }
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 1.6rem; font-weight: 800; color: #fbbf24; }
.stat-label { font-size: .75rem; opacity: .8; }
.hero-cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.product-hero-image { flex-shrink: 0; position: relative; }
.product-hero-image img { width: 380px; border-radius: 16px; box-shadow: 0 8px 32px rgba(0,0,0,.2); display: block; }
.price-tag { position: absolute; top: 12px; right: 12px; background: #fbbf24; color: #1a1a2e; padding: 6px 14px; border-radius: 8px; font-weight: 800; font-size: .85rem; }

.price-table-wrapper { overflow-x: auto; margin: 0 -4px; }
.price-table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 600px; }
.price-table th { background: #1e40af; color: #fff; padding: 12px 14px; text-align: center; font-weight: 700; white-space: nowrap; }
.price-table th:first-child { text-align: left; border-radius: 10px 0 0 0; }
.price-table th:last-child { border-radius: 0 10px 0 0; }
.price-table td { padding: 10px 14px; border: 1px solid #e5e7eb; text-align: center; }
.price-table td:first-child { text-align: left; font-weight: 600; background: #f8f9ff; }
.price-table td small { display: block; font-weight: 400; color: #888; font-size: .8rem; }
.price-table tr:nth-child(even) td { background: #fafbfc; }
.price-note { margin-top: 16px; background: #fefce8; border: 1px solid #facc15; border-radius: 10px; padding: 12px 16px; font-size: .85rem; color: #854d0e; }
.price-note a { color: #2563eb; font-weight: 600; }

.spec-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 28px; margin-bottom: 20px; }
.spec-card h3 { font-size: 1.1rem; font-weight: 700; color: #1e40af; margin-bottom: 14px; }
.spec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.comparison-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.comparison-table th { background: #1e40af; color: #fff; padding: 12px 14px; text-align: center; font-weight: 700; }
.comparison-table th:first-child { text-align: left; }
.comparison-table td { padding: 10px 14px; border: 1px solid #e5e7eb; text-align: center; }
.comparison-table td:first-child { font-weight: 600; background: #f8f9ff; text-align: left; }
.comparison-table tr:nth-child(even) td { background: #fafbfc; }

.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.app-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 28px 20px; text-align: center; transition: all .2s; }
.app-card:hover { box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.app-icon { font-size: 2.8rem; margin-bottom: 10px; }
.app-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.app-card p { font-size: .88rem; color: #666; margin-bottom: 12px; }
.app-card a { color: #2563eb; font-weight: 600; font-size: .85rem; }
.app-card .recommended { display: inline-block; background: #fbbf24; color: #1a1a2e; font-size: 10px; padding: 2px 8px; border-radius: 20px; font-weight: 700; margin-top: 8px; }

.cta-inline { background: #eef2ff; border-left: 4px solid #2563eb; border-radius: 8px; padding: 16px 20px; margin: 24px 0; font-size: .95rem; }
.cta-inline a { color: #2563eb; font-weight: 700; }

.faq-item { border: 1px solid #e5e7eb; border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.faq-question { padding: 16px 20px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; background: #f8f9ff; transition: background .2s; }
.faq-question:hover { background: #eef2ff; }
.faq-question::after { content: "+"; font-size: 1.2rem; color: #2563eb; font-weight: 700; }
.faq-item.open .faq-question::after { content: "−"; }
.faq-answer { padding: 0 20px; max-height: 0; overflow: hidden; transition: all .3s ease; }
.faq-item.open .faq-answer { padding: 16px 20px; max-height: 400px; }
.faq-answer p { color: #555; font-size: .9rem; line-height: 1.7; }

@media (max-width: 1024px) {
  .product-hero-inner { flex-direction: column; text-align: center; }
  .product-hero-image img { width: 280px; }
  .hero-stats-row { justify-content: center; }
  .hero-cta-row { justify-content: center; }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .product-hero-text h1 { font-size: 1.6rem; }
  .spec-grid { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: 1fr; }
  .dropdown, .dropdown-wide { display: none; }
  .nav-links { display: none; }
  .btn-nav { display: none; }
  .nav-toggle { display: none; }
  .navbar { display: none; }
}