@charset "UTF-8";
:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --bg-card: #161616;
  --fg: #e8e0d0;
  --fg-muted: #8a8274;
  --fg-dim: #5a5548;
  --gold: #c9a84c;
  --gold-dim: #8a7535;
  --gold-glow: rgba(201, 168, 76, 0.15);
  --serif: 'Noto Serif SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'STSong', 'SimSun', 'Songti SC', serif;
  --sans: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
  --max-w: 960px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.2;
}
.gold { color: var(--gold); }

.brand-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
}
.brand-nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
}
.brand-nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.brand-nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s;
}
.brand-nav-links a:hover,
.brand-nav-links a.active {
  color: var(--fg);
}
.fixed-cta {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 200;
  background: var(--gold);
  color: var(--bg);
  padding: 12px 28px;
  border-radius: 50px;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 24px rgba(201, 168, 76, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.fixed-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(201, 168, 76, 0.5);
}
.brand-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}
.brand-hero-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.06;
}
.hex-pattern {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 300px;
}
.hex-line {
  height: 12px;
  border-radius: 3px;
}
.hex-line.yang {
  background: var(--gold);
}
.hex-line.yin {
  display: flex;
  gap: 20px;
}
.hex-line.yin::before,
.hex-line.yin::after {
  content: '';
  flex: 1;
  height: 12px;
  background: var(--gold);
  border-radius: 3px;
}
.brand-hero-content {
  position: relative;
  z-index: 1;
}
.brand-hero-content h1 {
  font-size: clamp(3.5rem, 10vw, 6rem);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}
.brand-tagline {
  font-family: var(--serif);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  color: var(--fg-muted);
  margin-bottom: 8px;
}
.brand-sub {
  font-size: 0.95rem;
  color: var(--fg-dim);
  margin-bottom: 40px;
}
.brand-hero-cta {
  display: inline-block;
  background: var(--gold);
  color: var(--bg);
  padding: 14px 36px;
  border-radius: 6px;
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 24px rgba(201, 168, 76, 0.25);
}
.brand-hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 32px rgba(201, 168, 76, 0.4);
}
.brand-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}
.brand-section {
  padding: 80px 0;
}
.brand-section-dark {
  background: var(--bg-elevated);
}
.brand-section h2 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  text-align: center;
}
.brand-lead {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}
.brand-center { text-align: center; }

.brand-pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}
.brand-pillar {
  background: var(--bg-card);
  border: 1px solid rgba(201, 168, 76, 0.12);
  border-radius: 8px;
  padding: 32px 24px;
  text-align: center;
}
.pillar-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.brand-pillar h3 {
  font-size: 1.15rem;
  color: var(--gold);
  margin-bottom: 12px;
}
.brand-pillar p {
  color: var(--fg-muted);
  font-size: 0.92rem;
}
.brand-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.brand-feature {
  padding: 28px;
  border-left: 2px solid var(--gold-dim);
}
.feature-num {
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--gold-dim);
  letter-spacing: 0.1em;
  font-weight: 600;
}
.brand-feature h3 {
  font-size: 1.1rem;
  margin: 8px 0;
}
.brand-feature p {
  color: var(--fg-muted);
  font-size: 0.9rem;
}
.brand-cta-section {
  background: var(--bg-card);
  border-top: 1px solid rgba(201, 168, 76, 0.1);
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
}
.brand-cta-section h2 {
  margin-bottom: 12px;
}
.brand-cta-section .brand-lead {
  margin-bottom: 32px;
}
.culture-hero {
  padding: 140px 0 60px;
  text-align: center;
}
.culture-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}
.culture-block {
  max-width: 680px;
  margin: 0 auto;
}
.culture-block h2 {
  text-align: left;
  margin-bottom: 16px;
}
.culture-block p {
  color: var(--fg-muted);
  margin-bottom: 16px;
}
.culture-principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.culture-principle {
  padding: 28px;
  border: 1px solid rgba(201, 168, 76, 0.12);
  border-radius: 8px;
  background: var(--bg-card);
}
.principle-marker {
  display: inline-block;
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 12px;
}
.culture-principle h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}
.culture-principle p {
  color: var(--fg-muted);
  font-size: 0.9rem;
}
.products-hero {
  padding: 140px 0 60px;
  text-align: center;
}
.products-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}
.product-card {
  max-width: 720px;
  margin: 0 auto;
}
.product-label {
  font-size: 0.8rem;
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.product-card h2 {
  text-align: left;
  font-size: 1.8rem;
  margin-bottom: 16px;
}
.product-desc {
  color: var(--fg-muted);
  margin-bottom: 28px;
}
.product-specs {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.spec {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.spec-label {
  font-size: 0.8rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.spec-value {
  font-family: var(--serif);
  font-size: 1.2rem;
  color: var(--gold);
  font-weight: 700;
}
.product-steps {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.step {
  background: var(--bg);
  border: 1px solid rgba(201, 168, 76, 0.15);
  border-radius: 6px;
  padding: 12px 18px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.step span {
  font-family: var(--serif);
  color: var(--gold);
  font-weight: 700;
}
.product-modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.mode {
  background: var(--bg-card);
  border: 1px solid rgba(201, 168, 76, 0.1);
  border-radius: 8px;
  padding: 24px;
}
.mode h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.mode p {
  color: var(--fg-muted);
  font-size: 0.88rem;
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.tech-item {
  padding: 24px;
  border-left: 2px solid var(--gold-dim);
}
.tech-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}
.tech-item p {
  color: var(--fg-muted);
  font-size: 0.88rem;
}
.brand-footer {
  padding: 60px 0 32px;
  border-top: 1px solid rgba(201, 168, 76, 0.08);
}
.brand-footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 32px;
}
.brand-footer-logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.brand-footer-brand p {
  color: var(--fg-dim);
  font-size: 0.88rem;
}
.brand-footer-links {
  display: flex;
  gap: 24px;
}
.brand-footer-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.15s;
}
.brand-footer-links a:hover { color: var(--fg); }

.brand-footer-disclaimer {
  padding-top: 24px;
  border-top: 1px solid rgba(201, 168, 76, 0.06);
}
.brand-footer-disclaimer p {
  color: var(--fg-dim);
  font-size: 0.78rem;
  line-height: 1.6;
}
@media (max-width: 640px) {
  .brand-hero {
    min-height: 70vh;
    padding: 100px 20px 60px;
  }

  .brand-section { padding: 56px 0; }

  .product-specs {
    flex-direction: column;
    gap: 16px;
  }

  .brand-nav-links { gap: 16px; }

  .fixed-cta {
    bottom: 16px;
    right: 16px;
    padding: 10px 22px;
    font-size: 0.9rem;
  }
}