/* Product Detail Pages */

.cn-text { display: block; }
.en-text { display: none; }
body.lang-en .cn-text { display: none; }
body.lang-en .en-text { display: block; }

.product-hero {
  height: 70vh;
  min-height: 500px;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding-bottom: 4rem;
  overflow: hidden;
}

.product-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.4) 60%, rgba(0,0,0,0.2) 100%);
}

.product-hero-content {
  position: relative;
  z-index: 2;
  padding: 0 5%;
}

.breadcrumb {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.breadcrumb a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  transition: color 0.3s;
}

.breadcrumb a:hover { color: var(--gold); }

.product-hero-label {
  font-size: 0.72rem;
  letter-spacing: 0.35em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.product-hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 0.8rem;
}

.product-hero-content h1 .cn-title {
  font-family: var(--font-cn);
  font-size: 0.45em;
  color: rgba(255,255,255,0.6);
  margin-left: 1rem;
  font-weight: 400;
}

.product-hero-content p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.05em;
}

/* Main Content */
.product-main { padding-top: 0; }

.product-section { padding: 6rem 0; }
.product-section.dark { background: var(--dark2); }

.product-section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5%;
}

/* Overview */
.product-overview {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 5rem;
  align-items: start;
}

.product-overview-text p {
  color: rgba(255,255,255,0.72);
  font-size: 0.95rem;
  line-height: 1.9;
  margin-bottom: 1.2rem;
}

.product-overview-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 2.5rem;
  border: 1px solid rgba(201,168,76,0.25);
  background: rgba(201,168,76,0.03);
}

.overview-stat-num {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.overview-stat-label {
  font-size: 0.82rem;
  color: var(--gray);
  letter-spacing: 0.08em;
}

/* Origins */
.origin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.origin-card {
  padding: 2.5rem;
  border: 1px solid rgba(201,168,76,0.2);
  transition: border-color 0.3s;
}

.origin-card:hover { border-color: var(--gold); }

.origin-flag { font-size: 2.5rem; margin-bottom: 1rem; }

.origin-card h3 {
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 1rem;
  font-family: var(--font-cn);
  font-weight: 600;
}

.origin-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.85;
}

/* Grade Table */
.grade-table {
  margin-top: 3rem;
  border: 1px solid rgba(255,255,255,0.08);
}

.grade-row {
  display: grid;
  grid-template-columns: 100px 120px 1fr 1fr;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  align-items: center;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.72);
}

body.lang-en .grade-row { grid-template-columns: 100px 120px 1fr 1fr; }

.grade-row.header {
  background: rgba(201,168,76,0.08);
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.grade-badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  font-weight: 700;
  font-size: 0.9rem;
  font-family: var(--font-en);
  letter-spacing: 0.05em;
}

.grade-badge.a5 { background: var(--gold); color: var(--black); }
.grade-badge.a4 { background: rgba(201,168,76,0.3); color: var(--gold); border: 1px solid var(--gold); }
.grade-badge.a3 { background: transparent; color: var(--gray); border: 1px solid var(--gray); }

/* Specs */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 3rem;
}

.spec-card {
  background: var(--dark2);
  padding: 2rem;
  text-align: center;
}

.spec-icon { font-size: 2rem; margin-bottom: 1rem; }

.spec-title {
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.spec-value {
  font-size: 0.9rem;
  color: var(--white);
  line-height: 1.6;
}

/* CTA */
.product-cta {
  background: var(--dark2);
  border-top: 1px solid rgba(201,168,76,0.2);
  padding: 6rem 5%;
  text-align: center;
}

.product-cta-inner { max-width: 700px; margin: 0 auto; }

.product-cta h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  margin-bottom: 1rem;
}

.product-cta p {
  color: var(--gray);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 900px) {
  .product-overview { grid-template-columns: 1fr; gap: 2rem; }
  .origin-grid { grid-template-columns: 1fr; }
  .specs-grid { grid-template-columns: 1fr 1fr; }
  .grade-row { grid-template-columns: 80px 1fr 1fr; }
  .grade-row.header > *:last-child { display: none; }
  .grade-row > *:last-child { display: none; }
}

@media (max-width: 600px) {
  .specs-grid { grid-template-columns: 1fr; }
  .grade-row { grid-template-columns: 70px 1fr; }
  .grade-row > *:nth-child(2), .grade-row > *:nth-child(3) { display: none; }
}