/* =============================================
   版面配置 — Header、Hero、Footer、各區塊
   ============================================= */

/* ---------- Header ---------- */
.site-header-wrap {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-light);
  isolation: isolate;
}

.site-header {
  position: relative;
  height: var(--header-height);
  background: transparent;
  z-index: 1;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-md);
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  min-height: var(--header-height);
  text-decoration: none;
}

.logo-image {
  display: block;
  width: auto;
  max-height: 46px;
  object-fit: contain;
  object-position: left center;
}

@media (min-width: 769px) {
  .logo-image {
    width: 124px;
    max-width: 124px;
    max-height: 46px;
    height: auto;
  }
}

.logo-text {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--color-bg-dark);
  min-height: clamp(520px, 70vh, 680px);
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, #071628 0%, #0a2244 45%, #0d2d5a 100%);
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.6) 0%, transparent 80%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.6) 0%, transparent 80%);
}

.hero-bg-line {
  position: absolute;
  background: rgba(61, 127, 212, 0.15);
  height: 1px;
}

.hero-bg-line--1 {
  top: 28%;
  left: 0;
  right: 30%;
}

.hero-bg-line--2 {
  bottom: 22%;
  left: 40%;
  right: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-content {
  max-width: 520px;
}

.hero-eyebrow {
  font-size: var(--text-xs);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-size: var(--text-4xl);
  color: var(--color-white);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
}

.hero-divider {
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.hero-tagline {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.hero-product-showcase {
  width: 100%;
  aspect-ratio: 5 / 4;
  max-height: 420px;
  margin: 0;
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-product-showcase .product-photo {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: center;
}

.hero-placeholder {
  width: 100%;
  aspect-ratio: 5 / 4;
  max-height: 420px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255, 255, 255, 0.35);
  text-align: center;
  padding: var(--space-xl);
}

.hero-placeholder-icon {
  opacity: 0.5;
  margin-bottom: var(--space-xs);
}

.hero-placeholder-label {
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
}

.hero-placeholder-inner small {
  font-size: var(--text-xs);
  opacity: 0.7;
}

/* ---------- About / Metrics ---------- */
.about {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--color-border);
}

.metric-item {
  padding: var(--space-2xl) var(--space-xl);
  border-right: 1px solid var(--color-border);
  text-align: left;
}

.metric-item:last-child {
  border-right: none;
}

.metric-value {
  font-size: var(--text-metric);
  font-weight: 700;
  color: var(--color-primary-dark);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.metric-value--text {
  font-size: var(--text-2xl);
  letter-spacing: 0;
}

.metric-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.metric-item:last-child .metric-label {
  visibility: hidden;
}

/* ---------- Products ---------- */
.products {
  background: var(--color-bg-subtle);
}

.products-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.product-entry {
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: border-color var(--transition-fast);
}

.product-entry:hover {
  border-color: var(--color-primary-light);
}

.product-entry-link {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  min-height: 280px;
}

.product-entry-visual {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-muted);
  min-height: 240px;
}

.product-entry-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-left: 1px solid var(--color-border-light);
}

.product-entry-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
}

.product-entry-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: auto;
  padding-top: var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  transition: gap var(--transition-fast);
}

.product-entry-link:hover .product-entry-arrow {
  gap: var(--space-md);
}

/* ---------- Quality ---------- */
.quality {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
}

.quality-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-3xl);
  align-items: start;
}

.quality-intro .section-desc {
  margin-top: var(--space-md);
}

/* ---------- Contact CTA ---------- */
.contact-cta {
  background: var(--color-primary-dark);
  padding-block: clamp(4rem, 5vw, 5rem);
}

.contact-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.85fr) minmax(12rem, 1fr);
  align-items: center;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.contact-cta-content {
  min-width: 0;
  max-width: min(56.25rem, 100%);
}

.contact-cta-title {
  font-size: var(--text-3xl);
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.contact-cta-desc {
  color: rgba(255, 255, 255, 0.65);
  font-size: clamp(1rem, 0.95rem + 0.15vw, 1.0625rem);
  line-height: 1.65;
  margin: 0;
}

.contact-cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  min-width: 0;
}

html[lang="en"] .contact-cta-desc {
  max-width: 40rem;
  letter-spacing: -0.01em;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.6);
  padding-block: var(--space-3xl) var(--space-xl);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.02em;
}

.footer-tagline {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: var(--space-lg);
}

.footer-meta {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.footer-col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.footer-links a,
.footer-lang {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-lang:hover {
  color: var(--color-white);
}

.footer-lang.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.footer-lang.is-disabled:hover {
  color: rgba(255, 255, 255, 0.55);
}

.footer-links li + li {
  margin-top: var(--space-sm);
}

.footer-contact {
  font-size: var(--text-sm);
}

.footer-contact li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-contact li + li {
  margin-top: var(--space-md);
}

.footer-contact-label {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.3);
}

.footer-lang {
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

/* ---------- Responsive: Tablet ---------- */
@media (max-width: 1024px) {
  .hero-inner {
    gap: var(--space-2xl);
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric-item:nth-child(2) {
    border-right: none;
  }

  .metric-item:nth-child(1),
  .metric-item:nth-child(2) {
    border-bottom: 1px solid var(--color-border);
  }

  .product-entry-link {
    grid-template-columns: 1fr 1fr;
  }

  .quality-inner {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer-columns {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- Responsive: Mobile ---------- */
@media (max-width: 768px) {
  .logo-image {
    max-height: 37px;
    max-width: 72px;
  }

  .section {
    padding-block: var(--space-3xl);
  }

  .hero {
    min-height: auto;
    padding-block: var(--space-3xl);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .hero-content {
    max-width: none;
    order: 2;
  }

  .hero-visual {
    order: 1;
    justify-content: center;
  }

  .hero-placeholder {
    aspect-ratio: 16 / 9;
    max-height: 200px;
  }

  .hero-product-showcase {
    aspect-ratio: 16 / 9;
    max-height: 220px;
    padding: var(--space-md);
  }

  .hero-title {
    font-size: var(--text-3xl);
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric-item {
    padding: var(--space-xl) var(--space-lg);
  }

  .metric-item:nth-child(odd) {
    border-right: 1px solid var(--color-border);
  }

  .metric-item:nth-child(even) {
    border-right: none;
  }

  .metric-item:nth-child(1),
  .metric-item:nth-child(2) {
    border-bottom: 1px solid var(--color-border);
  }

  .metric-item:nth-child(3),
  .metric-item:nth-child(4) {
    border-bottom: none;
  }

  .product-entry-link {
    grid-template-columns: 1fr;
    min-height: auto;
    min-width: 0;
  }

  .product-entry-visual {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .product-entry-visual .product-showcase {
    min-height: 0;
  }

  .product-entry-content {
    min-width: 0;
    max-width: 100%;
    border-left: none;
    border-top: 1px solid var(--color-border-light);
  }

  .contact-cta-inner {
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: var(--space-xl);
  }

  .contact-cta-actions {
    width: 100%;
    flex-direction: column;
    justify-content: stretch;
  }

  .contact-cta-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-columns {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer-col:last-child {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* 極窄螢幕：指標改單欄 */
@media (max-width: 400px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .metric-item {
    border-right: none !important;
    border-bottom: 1px solid var(--color-border);
  }

  .metric-item:last-child {
    border-bottom: none;
  }

  .footer-columns {
    grid-template-columns: 1fr;
  }
}