/* ===== Base ===== */
body {
  font-family: var(--font-zh);
  background: var(--color-bg);
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.en { font-family: var(--font-en); letter-spacing: 0.05em; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 244, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.site-logo img { height: 44px; width: auto; }
.site-logo .brand-en {
  font-family: var(--font-en);
  font-size: 1.05rem;
  letter-spacing: 0.15em;
  color: var(--color-text);
}
.site-nav ul {
  display: flex;
  gap: var(--space-md);
}
.site-nav a {
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition);
}
.site-nav a:hover,
.site-nav a.active { color: var(--color-accent); }
.site-nav a.active::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 1px;
  background: var(--color-accent);
}
.nav-toggle {
  display: none;
  width: 32px; height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition);
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-xs) var(--space-sm);
  z-index: 999;
}
.skip-link:focus { left: var(--space-sm); top: var(--space-xs); }

/* ===== Hero ===== */
.hero {
  position: relative;
  height: calc(100vh - var(--header-height));
  min-height: 480px;
  overflow: hidden;
  background: linear-gradient(135deg, #2C2A28 0%, #6B6661 100%);
}
.hero-slides {
  position: absolute;
  inset: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  background-size: cover;
  background-position: center;
  background-color: #2C2A28;
}
.hero-slide.active { opacity: 1; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 60%, rgba(0,0,0,0.35) 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg) var(--space-md);
}
.hero-overlay .container {
  color: #fff;
  width: 100%;
}
.hero-title {
  font-family: var(--font-en);
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}
.hero-subtitle {
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  opacity: 0.9;
}
.hero-dots {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-xs);
  z-index: 2;
}
.hero-dots button {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transition: background var(--transition);
}
.hero-dots button.active { background: #fff; }

/* ===== Section ===== */
.section {
  padding: var(--space-xl) 0;
}
.section-title {
  font-family: var(--font-en);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-align: center;
  margin-bottom: var(--space-xs);
}
.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-lg);
}

/* About */
.about {
  background: var(--color-surface);
}
.about-grid {
  display: grid;
  gap: var(--space-lg);
  max-width: 880px;
  margin-inline: auto;
}
.about-block p {
  font-size: 1rem;
  line-height: 2;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}
.about-block.en p {
  font-family: var(--font-en);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-text-muted);
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}
.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(44, 42, 40, 0.08);
}
.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--color-accent);
  letter-spacing: 0.1em;
}
.service-card p {
  font-size: 0.92rem;
  line-height: 1.9;
  color: var(--color-text-muted);
}

/* News */
.news {
  background: var(--color-surface);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.news-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.news-card-image {
  aspect-ratio: 4/3;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-family: var(--font-en);
  letter-spacing: 0.1em;
}
.news-card-body { padding: var(--space-md); }
.news-card h3 { font-size: 1.05rem; margin-bottom: var(--space-xs); }
.news-card time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--color-text);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  transition: background var(--transition), color var(--transition);
}
.btn:hover { background: var(--color-text); color: var(--color-bg); }
.btn-center { display: block; width: max-content; margin-inline: auto; }

/* ===== Page Hero (sub-pages) ===== */
.page-hero {
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 {
  font-family: var(--font-en);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 400;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xs);
}
.page-hero p {
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

/* ===== Portfolio ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
.filter-bar button {
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  transition: all var(--transition);
}
.filter-bar button.active,
.filter-bar button:hover {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-sm);
}
.portfolio-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: zoom-in;
}
.portfolio-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.portfolio-item:hover img { transform: scale(1.05); }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-md);
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 90vh; object-fit: contain; }
.lightbox-close {
  position: absolute;
  top: var(--space-md); right: var(--space-md);
  color: #fff;
  font-size: 2rem;
}

/* ===== Podcast ===== */
.embed-placeholder {
  background: var(--color-surface);
  aspect-ratio: 16/5;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-lg);
  border: 1px dashed var(--color-border);
}
.episode-list { display: grid; gap: var(--space-md); }
.episode-card {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  align-items: center;
}
.episode-card .ep-num {
  font-family: var(--font-en);
  font-size: 2.5rem;
  color: var(--color-accent);
  text-align: center;
}

/* ===== About page ===== */
.about-philosophy {
  max-width: 880px;
  margin-inline: auto;
  text-align: center;
}
.about-philosophy p {
  line-height: 2;
  margin-bottom: var(--space-md);
}
.designer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}
.designer-card {
  text-align: center;
  padding: var(--space-md);
}
.designer-avatar {
  width: 160px; height: 160px;
  border-radius: 50%;
  background: var(--color-surface);
  margin: 0 auto var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-family: var(--font-en);
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}
.cert-card {
  background: var(--color-surface);
  padding: var(--space-md);
  border-left: 3px solid var(--color-accent);
}
.cert-card h3 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
  letter-spacing: 0.1em;
}
.cert-card p {
  font-family: var(--font-en);
  color: var(--color-accent);
  font-size: 1.1rem;
}

/* ===== Shop ===== */
.shop-notice {
  background: var(--color-accent-soft);
  color: var(--color-text);
  padding: var(--space-md);
  text-align: center;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}
.category-card {
  aspect-ratio: 1;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  font-family: var(--font-en);
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  transition: background var(--transition);
}
.category-card:hover { background: var(--color-accent-soft); }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-text);
  color: var(--color-bg);
  padding: var(--space-lg) 0 var(--space-md);
  margin-top: var(--space-xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
.footer-brand .brand-en {
  font-family: var(--font-en);
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xs);
}
.footer-brand p {
  font-size: 0.85rem;
  opacity: 0.7;
  line-height: 1.8;
}
.footer-col h4 {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-sm);
  color: var(--color-accent-soft);
}
.footer-col ul { display: grid; gap: var(--space-xs); }
.footer-col a {
  font-size: 0.85rem;
  opacity: 0.8;
  transition: opacity var(--transition);
}
.footer-col a:hover { opacity: 1; }
.footer-legal {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 0.8rem;
  opacity: 0.6;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --space-xl: 4rem; --space-lg: 2.5rem; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    transform: translateY(-150%);
    transition: transform var(--transition);
  }
  .site-nav.open { transform: translateY(0); }
  .site-nav ul { flex-direction: column; gap: var(--space-md); }
  .site-logo .brand-en { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
  .footer-legal { flex-direction: column; }
  .episode-card { grid-template-columns: 1fr; text-align: center; }
}