:root {
  --navy: #0c1424;
  --navy-soft: #141f35;
  --navy-card: #1a2740;
  --gold: #c9a962;
  --gold-light: #e8d5a3;
  --gold-dim: rgba(201, 169, 98, 0.15);
  --text: #1a2332;
  --text-muted: #64748b;
  --text-light: rgba(255, 255, 255, 0.72);
  --border: rgba(255, 255, 255, 0.08);
  --border-light: #e8ecf2;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow: 0 24px 64px rgba(12, 20, 36, 0.12);
  --shadow-gold: 0 8px 32px rgba(201, 169, 98, 0.2);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: #fafbfc;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1140px, calc(100% - 40px));
  margin: 0 auto;
}

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  transition: background 0.35s, box-shadow 0.35s;
}

.site-header.scrolled {
  background: rgba(12, 20, 36, 0.96);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 44px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.logo-text strong {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}

.logo-text span {
  font-size: 10px;
  color: var(--gold-light);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.85;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.06em;
  transition: color 0.25s;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.3s;
}

.nav a:hover {
  color: #fff;
}

.nav a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 9px 22px !important;
  border: 1px solid rgba(201, 169, 98, 0.5);
  border-radius: 999px;
  color: var(--gold) !important;
  font-weight: 600;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--gold-dim);
  border-color: var(--gold);
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: var(--navy);
  overflow: hidden;
}

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

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 20%, rgba(201, 169, 98, 0.08), transparent),
    radial-gradient(ellipse 50% 50% at 10% 80%, rgba(59, 130, 246, 0.06), transparent);
}

.hero-grid-bg {
  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: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black, transparent);
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 98, 0.06), transparent 65%);
  top: -200px;
  right: -100px;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
}

.hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--gold);
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-light);
  max-width: 480px;
  margin-bottom: 40px;
  line-height: 1.9;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), #a8863a);
  color: var(--navy);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(201, 169, 98, 0.35);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.85);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.05);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.stat-item strong {
  display: block;
  font-size: 28px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-item span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.08em;
}

/* Hero card */
.hero-panel {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 32px;
  backdrop-filter: blur(20px);
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.3);
}

.hero-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.hero-panel-head h3 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.1em;
}

.hero-panel-badge {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--gold-dim);
  color: var(--gold);
  border: 1px solid rgba(201, 169, 98, 0.3);
}

.info-list {
  list-style: none;
}

.info-list li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 13px;
}

.info-list li:last-child {
  border-bottom: none;
}

.info-list .label {
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.06em;
}

.info-list .value {
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.6;
}

.info-list a {
  color: var(--gold-light);
}

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

/* ── Sections ── */
.section {
  padding: 96px 0;
}

.section-dark {
  background: var(--navy-soft);
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.section-dark .section-head h2 {
  color: #fff;
}

.section-head p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto;
}

.section-dark .section-head p {
  color: rgba(255, 255, 255, 0.5);
}

.section-head::after {
  content: "";
  display: block;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 20px auto 0;
}

/* About */
.about-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.about-text {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 2;
}

.about-text p + p {
  margin-top: 20px;
}

.about-text .lead {
  font-size: 18px;
  color: var(--text);
  font-weight: 500;
  line-height: 1.85;
  padding-left: 20px;
  border-left: 3px solid var(--gold);
}

.about-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
}

.about-card dt {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.about-card dd {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-light);
}

.about-card dd:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.about-card dd a {
  color: var(--navy);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
}

.about-card dd a:hover {
  color: #a8863a;
}

/* Services */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 169, 98, 0.25);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.25);
}

.card:hover::before {
  opacity: 1;
}

.card-num {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 20px;
  opacity: 0.7;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--gold-dim);
  border: 1px solid rgba(201, 169, 98, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--gold);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.card p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.85;
}

/* Contact */
.contact-wrap {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
}

.contact-side {
  background: var(--navy);
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-side h3 {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.contact-side p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.85;
  margin-bottom: 32px;
}

.contact-side .btn-primary {
  align-self: flex-start;
}

.contact-list {
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border-light);
}

.contact-row:last-child {
  border-bottom: none;
}

.contact-row-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--gold-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #a8863a;
}

.contact-row-icon svg {
  width: 20px;
  height: 20px;
}

.contact-row-body h4 {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.contact-row-body p {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.6;
}

.contact-row-body a {
  color: var(--navy);
  border-bottom: 1px solid var(--gold);
}

.contact-row-body a:hover {
  color: #a8863a;
}

/* Footer */
.site-footer {
  background: var(--navy);
  padding: 48px 0 32px;
  border-top: 1px solid rgba(201, 169, 98, 0.15);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.footer-brand strong {
  display: block;
  font-size: 16px;
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.footer-brand span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.7;
  max-width: 320px;
  display: block;
}

.footer-nav {
  display: flex;
  gap: 28px;
}

.footer-nav a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.06em;
  transition: color 0.2s;
}

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

.beian-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 24px;
}

.beian-row a {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color 0.2s;
}

.beian-row a:hover {
  color: var(--gold-light);
}

.beian-row img {
  width: 14px;
  height: 14px;
  opacity: 0.7;
}

.footer-copy {
  text-align: center;
  margin-top: 16px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.25);
  letter-spacing: 0.06em;
}

/* Mobile */
@media (max-width: 900px) {
  .hero-inner,
  .about-layout,
  .contact-wrap {
    grid-template-columns: 1fr;
  }

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

  .hero-stats {
    gap: 24px;
  }

  .nav a:not(.nav-cta) {
    display: none;
  }
}

@media (max-width: 600px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }

  .contact-side,
  .contact-list {
    padding: 32px 24px;
  }

  .section {
    padding: 72px 0;
  }
}