:root {
  --bg: #07111f;
  --bg-soft: #0f172a;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --panel-border: rgba(255, 255, 255, 0.14);
  --text: #e5edf6;
  --muted: #94a3b8;
  --primary: #d4af37;
  --primary-deep: #b88a16;
  --white: #ffffff;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
  --radius: 20px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(212, 175, 55, 0.16), transparent 28%),
    linear-gradient(180deg, #081120 0%, #0b1324 46%, #101a2f 100%);
  color: var(--text);
  line-height: 1.7;
}

img {
  max-width: 100%;
}

.container {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(7, 17, 31, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--white);
  text-decoration: none;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, #f6d365, #b88a16);
  color: #111827;
  box-shadow: var(--shadow);
}

.brand-cn {
  font-size: 1rem;
  font-weight: 700;
}

.brand-en {
  font-size: 0.72rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-links a,
.lang-toggle,
.footer-links a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.lang-toggle {
  border: 1px solid rgba(212, 175, 55, 0.4);
  background: transparent;
  border-radius: 999px;
  padding: 10px 16px;
  cursor: pointer;
  transition: 0.2s ease;
}

.hero {
  padding: 104px 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 44px;
  align-items: center;
}

.eyebrow,
.section-tag {
  margin: 0 0 10px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
}

.section-tag.light,
.section-title.light {
  color: var(--white);
}

.hero h1,
.section-title,
#about h2,
#contact h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.hero-text,
#about p,
#contact p,
.service-card p,
.strength-item p,
.category-card p,
.process-step p,
.footer-main p {
  color: #c9d4e3;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, #f3d37a, var(--primary-deep));
  color: #0b1020;
}

.btn-secondary {
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--white);
  background: rgba(255, 255, 255, 0.04);
}

.hero-stats,
.trust-grid,
.cards,
.strength-grid,
.gallery-grid,
.category-grid,
.process-grid {
  display: grid;
  gap: 20px;
}

.hero-stats {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 32px;
}

.stat-item,
.trust-item,
.glass-card,
.contact-card,
.service-card,
.strength-item,
.gallery-card,
.contact-static,
.category-card,
.process-step {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.stat-item,
.trust-item {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
}

.stat-item strong {
  display: block;
  color: var(--white);
  font-size: 1.05rem;
}

.stat-item span,
.contact-list span,
.address-note,
.footer,
.trust-item,
.category-index {
  color: var(--muted);
}

.hero-card-wrap {
  display: flex;
  justify-content: center;
}

.glass-card {
  width: 100%;
  max-width: 430px;
  padding: 30px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.06));
}

.card-label {
  margin-top: 0;
  color: var(--primary);
  font-weight: 700;
}

.glass-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text);
}

.hero-panel-note {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-panel-note span {
  color: var(--primary);
  font-weight: 700;
}

.hero-panel-note p {
  margin-bottom: 0;
}

.section {
  padding: 82px 0;
}

.section-dark {
  background: rgba(3, 9, 20, 0.45);
}

.trust-strip {
  padding-top: 0;
}

.trust-grid {
  grid-template-columns: repeat(4, 1fr);
}

.trust-item {
  text-align: center;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.two-col {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: start;
}

.two-col-balanced {
  align-items: center;
}

.cards,
.gallery-grid,
.category-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
}

.strength-grid {
  grid-template-columns: repeat(2, 1fr);
  margin-top: 28px;
}

.process-grid {
  grid-template-columns: repeat(4, 1fr);
  margin-top: 28px;
}

.service-card,
.strength-item,
.gallery-card,
.category-card,
.process-step {
  padding: 26px;
  border-radius: var(--radius);
}

.category-card,
.process-step {
  background: var(--panel-strong);
}

.category-card h3,
.process-step h3,
.service-card h3,
.strength-item h3 {
  margin-top: 10px;
  margin-bottom: 10px;
  font-size: 1.18rem;
}

.category-index,
.process-step span {
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.gallery-card {
  overflow: hidden;
}

.gallery-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
  border-radius: 14px;
}

.gallery-card figcaption {
  padding-top: 14px;
  color: var(--text);
}

.contact-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  padding: 34px;
  border-radius: 28px;
}

.contact-list {
  display: grid;
  gap: 16px;
}

.contact-list a,
.contact-static {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  border-radius: 18px;
  color: var(--white);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.footer {
  padding: 24px 0 38px;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}

.footer-links {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 18px;
  font-size: 0.92rem;
}

@media (max-width: 1100px) {
  .hero-grid,
  .two-col,
  .contact-card,
  .cards,
  .strength-grid,
  .gallery-grid,
  .category-grid,
  .process-grid,
  .trust-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .nav {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    overflow-x: auto;
  }

  .hero-grid,
  .two-col,
  .contact-card,
  .cards,
  .strength-grid,
  .gallery-grid,
  .category-grid,
  .process-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 72px;
  }

  .footer-main,
  .footer-inner {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .hero h1,
  .section-title,
  #about h2,
  #contact h2 {
    font-size: 2rem;
  }

  .brand {
    align-items: flex-start;
  }

  .brand-cn {
    font-size: 0.95rem;
  }

  .brand-en {
    font-size: 0.68rem;
  }

  .contact-card,
  .service-card,
  .strength-item,
  .glass-card,
  .gallery-card,
  .category-card,
  .process-step {
    padding: 22px;
  }

  .btn {
    width: 100%;
  }
}