:root {
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --surface: rgba(255, 252, 247, 0.94);
  --text: #172033;
  --muted: #5b6577;
  --border: #dfd8cb;
  --shadow: 0 20px 45px rgba(23, 32, 51, 0.08);
  --radius: 28px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Source Sans 3', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255,255,255,0.9), transparent 28%),
    radial-gradient(circle at top right, rgba(37,99,235,0.08), transparent 30%),
    linear-gradient(180deg, #f4efe6 0%, #f7f5ef 45%, #fbfaf7 100%);
}
a { color: inherit; text-decoration: none; }
.shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topbar { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(16px); background: rgba(251, 250, 247, 0.82); border-bottom: 1px solid rgba(223, 216, 203, 0.8); }
.topbar-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brandmark, .hero h1, .section-title, .card-title, .mini-title { font-family: 'Outfit', sans-serif; letter-spacing: -0.03em; }
.brandmark { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.04em; }
.brandmark span { color: var(--accent); }
.nav-links { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.nav-pill { padding: 10px 14px; border-radius: 999px; color: var(--muted); font-weight: 600; }
.nav-pill:hover, .nav-pill.is-active { background: var(--accent-soft); color: var(--accent); }
.hero { margin: 28px 0 24px; padding: 38px; border-radius: calc(var(--radius) + 4px); background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(255,255,255,0.78)); border: 1px solid rgba(223, 216, 203, 0.95); box-shadow: var(--shadow); }
.eyebrow, .chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; font-weight: 700; }
.hero h1 { margin: 18px 0 14px; font-size: clamp(2.1rem, 4vw, 4rem); line-height: 0.98; }
.hero p { max-width: 760px; margin: 0; color: var(--muted); font-size: 1.14rem; }
.hero-actions, .meta-strip, .badge-grid { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 18px; border-radius: 16px; border: 1px solid transparent; font-weight: 700; }
.button-primary { background: var(--accent); color: white; box-shadow: 0 14px 30px rgba(23, 32, 51, 0.14); }
.button-secondary { background: rgba(255,255,255,0.72); border-color: rgba(223,216,203,0.95); color: var(--text); }
.stats-grid, .brand-grid, .card-grid, .detail-grid, .related-grid { display: grid; gap: 18px; }
.stats-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); margin-top: 28px; }
.brand-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card-grid, .related-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.detail-grid { grid-template-columns: 1.35fr 0.95fr; align-items: start; }
.card { background: var(--surface); border: 1px solid rgba(223, 216, 203, 0.95); border-radius: var(--radius); box-shadow: var(--shadow); }
.stat-card, .brand-card, .product-card, .aside-card, .content-card { padding: 22px; }
.stat-value { font-family: 'Outfit', sans-serif; font-size: 2rem; font-weight: 800; }
.stat-label, .muted, .small-copy { color: var(--muted); }
.breadcrumbs { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 0.95rem; }
.breadcrumbs a:hover { color: var(--accent); }
.section { margin: 26px 0; }
.section-header { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.section-title { margin: 0; font-size: clamp(1.4rem, 2.4vw, 2rem); }
.section-subtitle { margin: 0; color: var(--muted); }
.product-card { display: flex; flex-direction: column; gap: 16px; }
.product-kicker, .inline-list { display: flex; flex-wrap: wrap; gap: 10px; }
.card-title { margin: 0; font-size: 1.3rem; }
.inline-list { margin: 0; padding: 0; list-style: none; }
.inline-list li { padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,0.78); border: 1px solid rgba(223,216,203,0.9); font-size: 0.92rem; }
.hero-visual { min-height: 320px; padding: 28px; border-radius: calc(var(--radius) - 4px); background: linear-gradient(160deg, rgba(255,255,255,0.95), rgba(255,255,255,0.86)); border: 1px solid rgba(223,216,203,0.9); display: flex; flex-direction: column; justify-content: space-between; }
.gallery-stage { border-radius: 24px; overflow: hidden; background: rgba(255,255,255,0.92); border: 1px solid rgba(223,216,203,0.9); }
.gallery-stage img { width: 100%; height: auto; display: block; }
.gallery-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 14px 0 18px; }
.gallery-thumb { margin: 0; border-radius: 18px; overflow: hidden; background: rgba(255,255,255,0.92); border: 1px solid rgba(223,216,203,0.9); }
.gallery-thumb img { width: 100%; height: auto; display: block; }
.part-stack { display: grid; gap: 10px; }
.part-number { font-family: 'Outfit', sans-serif; font-size: clamp(1.5rem, 4vw, 3rem); line-height: 0.95; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { text-align: left; padding: 14px 0; border-bottom: 1px solid rgba(223,216,203,0.8); vertical-align: top; }
.spec-table th { width: 38%; color: var(--muted); font-weight: 600; }
.bullets { margin: 0; padding-left: 18px; display: grid; gap: 10px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: rgba(255,255,255,0.84); border: 1px solid rgba(223,216,203,0.9); border-radius: 20px; padding: 18px 20px; }
.faq-item summary { cursor: pointer; font-weight: 700; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { color: var(--muted); margin: 12px 0 0; }
.notice { padding: 16px 18px; border-radius: 18px; background: rgba(255,255,255,0.78); border: 1px dashed rgba(223,216,203,1); color: var(--muted); }
.footer { margin-top: 42px; padding: 34px 0 44px; color: var(--muted); }
.footer-card { padding: 24px; text-align: center; }
@media (max-width: 920px) {
  .detail-grid { grid-template-columns: 1fr; }
  .topbar-inner { flex-direction: column; align-items: flex-start; padding: 14px 0; }
  .nav-links { justify-content: flex-start; }
  .hero { padding: 26px; }
}
@media (max-width: 640px) {
  .shell { width: min(100% - 20px, 1180px); }
  .hero { border-radius: 24px; }
  .brand-card, .product-card, .aside-card, .content-card, .stat-card { padding: 18px; }
  .button { width: 100%; }
  .hero-actions { flex-direction: column; }
}