/* ===== CSS Variables ===== */
:root {
  --color-bg: #0a0a14;
  --color-surface: #111122;
  --color-surface-hover: #1a1a33;
  --color-border: rgba(201,168,76,0.12);
  --color-gold: #c9a84c;
  --color-gold-light: #dcc06a;
  --color-gold-dark: #a88a3a;
  --color-gold-glow: rgba(201,168,76,0.15);
  --color-text: #ece6d9;
  --color-text-dim: #b0ae9e;
  --color-text-muted: #6e6c5e;
  --color-accent: #c9a84c;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-serif: "Noto Serif SC", "STSong", "SimSun", Georgia, serif;
  --max-width: 1200px;
  --radius: 8px;
  --radius-lg: 14px;
  --shadow: 0 8px 40px rgba(0,0,0,0.4);
  --shadow-gold: 0 4px 24px rgba(201,168,76,0.1);
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
  letter-spacing: 0.01em;
}
a { color: var(--color-gold); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-gold-light); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; letter-spacing: 0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,10,20,0.88);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo a {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  white-space: nowrap;
  text-decoration: none;
}
.logo-img { height: 44px; width: auto; display: block; }
.logo a span {
  color: var(--color-text-dim); font-weight: 300; font-size: 0.72rem;
  letter-spacing: 0.08em; opacity: 0.7;
}
@media (max-width: 640px) {
  .logo a { font-size: 1.1rem; gap: 8px; }
  .logo-img { height: 32px; }
  .logo a span { display: none; }
}

.nav-list { display: flex; gap: 2px; }
.nav-list a {
  display: block; padding: 8px 18px;
  color: var(--color-text-dim); font-size: 0.88rem; border-radius: var(--radius);
  letter-spacing: 0.03em; font-weight: 500;
  transition: var(--transition);
}
.nav-list a:hover,
.nav-list a.active { color: var(--color-gold); background: rgba(201,168,76,0.06); }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  padding: 8px; width: 40px; height: 40px; position: relative; z-index: 1001;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--color-text);
  margin: 4px auto; border-radius: 1px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===== Mobile Nav ===== */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .site-header nav { position: absolute; left: 0; right: 0; top: 72px; }
  .nav-list {
    position: static;
    display: flex; flex-direction: column; gap: 0;
    background: rgba(10,10,20,0.97); backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%); opacity: 0; visibility: hidden;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.25s ease, visibility 0.35s;
  }
  .nav-list.open {
    transform: translateY(0); opacity: 1; visibility: visible;
  }
  .nav-list a {
    padding: 14px 28px; border-radius: 0; font-size: 0.95rem;
    border-left: 2px solid transparent;
  }
  .nav-list a:hover,
  .nav-list a.active {
    border-left-color: var(--color-gold);
    background: rgba(201,168,76,0.06);
  }
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 120px 24px 80px;
  background: linear-gradient(160deg, #0a0a14 0%, #111122 40%, #0d0d1a 70%, #0a0a14 100%);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -50%; left: -50%; right: -50%; bottom: -50%;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(201,168,76,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(201,168,76,0.03) 0%, transparent 50%);
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.5;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero h1 {
  color: var(--color-gold);
  font-family: var(--font-serif);
  letter-spacing: 0.15em;
  margin-bottom: 20px;
  text-shadow: 0 0 80px rgba(201,168,76,0.15);
}
.hero .subtitle {
  font-size: 1.25rem; color: var(--color-text-dim); margin-bottom: 16px;
  font-weight: 300; letter-spacing: 0.08em;
}
.hero .hero-desc {
  font-size: 1rem; color: var(--color-text-dim); max-width: 560px;
  margin: 0 auto 48px; line-height: 1.9; opacity: 0.85;
}
.hero .hero-cta {
  display: inline-block; padding: 16px 48px;
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
  color: #0a0a14; font-weight: 600; border-radius: var(--radius);
  font-size: 0.95rem; letter-spacing: 0.06em;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(201,168,76,0.2);
}
.hero .hero-cta:hover {
  background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold) 100%);
  color: #0a0a14; transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(201,168,76,0.3);
}

/* ===== Stats Section ===== */
.stats-section { padding: 100px 24px; background: var(--color-surface); }
.stats-section .container { max-width: var(--max-width); margin: 0 auto; }
.stats-section h2 {
  text-align: center; margin-bottom: 56px; color: var(--color-gold);
  font-family: var(--font-serif); letter-spacing: 0.08em;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 40px; text-align: center;
}
.stat-item {
  padding: 28px 12px; position: relative;
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.stat-item::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  border: 1px solid var(--color-border); opacity: 0.6;
}
.stat-item:hover { background: rgba(201,168,76,0.03); }
.stat-item:hover::after { border-color: var(--color-gold); opacity: 0.3; }
.stat-item .stat-number {
  position: relative; min-height: 52px; line-height: 52px;
}
.stat-item .stat-number::after {
  content: ''; position: absolute; bottom: -6px; left: 50%; transform: translateX(-50%);
  width: 30px; height: 1px; background: var(--color-gold); opacity: 0.35;
  transition: var(--transition);
}
.stat-item:hover .stat-number::after { width: 40px; opacity: 0.6; }
.stat-item .stat-number {
  position: relative; min-height: 52px; margin-bottom: 10px;
  display: flex; align-items: flex-end; justify-content: center; gap: 4px;
}
.stat-number { font-family: var(--font-serif); }
.stat-number .stat-value { font-size: clamp(2.2rem, 4vw, 3rem); font-weight: 800; color: var(--color-gold); line-height: 1; }
.stat-number .stat-unit { font-size: 1.05rem; color: var(--color-gold); opacity: 0.85; }
.stat-label { font-size: 0.9rem; color: var(--color-text-dim); font-weight: 500; }
.stat-detail { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 6px; line-height: 1.3; }
.stat-detail .dash { position: relative; top: -1px; }

/* ===== Section Common ===== */
.section { padding: 100px 24px; }
.section .container { max-width: var(--max-width); margin: 0 auto; }
.section h2 {
  text-align: center; margin-bottom: 56px; color: var(--color-gold);
  font-family: var(--font-serif); letter-spacing: 0.06em;
}
.section h3 { color: var(--color-text); margin-bottom: 16px; }

/* ===== Service Cards ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 40px 28px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; left: 0; top: 20%; bottom: 20%;
  width: 2px; background: var(--color-gold); opacity: 0;
  transition: var(--transition); border-radius: 1px;
}
.service-card:hover {
  border-color: rgba(201,168,76,0.3); transform: translateY(-3px);
  box-shadow: var(--shadow-gold);
}
.service-card:hover::before { opacity: 1; }
.service-card .card-icon-svg {
  width: 48px; height: 48px; margin-bottom: 20px; display: block;
  opacity: 0.85; transition: var(--transition);
}
.service-card:hover .card-icon-svg { opacity: 1; }
.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; letter-spacing: 0.04em; }
.service-card p { font-size: 0.92rem; color: var(--color-text-dim); line-height: 1.7; }

/* ===== Business Tabs ===== */
.business-tabs { display: flex; gap: 10px; justify-content: center; margin-bottom: 48px; flex-wrap: wrap; }
.business-tab {
  padding: 12px 28px; background: var(--color-surface); border: 1px solid var(--color-border);
  color: var(--color-text-dim); border-radius: var(--radius); cursor: pointer;
  font-size: 0.92rem; font-weight: 500; letter-spacing: 0.04em;
  transition: var(--transition);
}
.business-tab:hover { border-color: var(--color-gold); color: var(--color-gold); }
.business-tab.active {
  background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
  color: #0a0a14; border-color: var(--color-gold); font-weight: 600;
  box-shadow: 0 2px 12px rgba(201,168,76,0.25);
}
.business-panel { display: none; }
.business-panel.active { display: block; }

/* ===== Timeline ===== */
.timeline { position: relative; padding: 24px 0; }
.timeline::before {
  content: ''; position: absolute; left: 20px; top: 0; bottom: 0;
  width: 1px; background: linear-gradient(to bottom, transparent, var(--color-gold-dark), var(--color-gold-dark), transparent);
  opacity: 0.4;
}
.timeline-item { position: relative; padding-left: 56px; margin-bottom: 36px; }
.timeline-item::before {
  content: ''; position: absolute; left: 13px; top: 5px;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--color-surface); border: 2px solid var(--color-gold);
  box-shadow: 0 0 0 4px var(--color-bg), 0 0 12px rgba(201,168,76,0.15);
}
.timeline-date {
  font-size: 0.88rem; color: var(--color-gold); font-weight: 600;
  margin-bottom: 6px; letter-spacing: 0.05em;
}
.timeline-content { font-size: 0.95rem; color: var(--color-text-dim); line-height: 1.7; }

/* ===== Team Grid ===== */
.team-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}
.team-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 32px 24px; text-align: center;
  transition: var(--transition);
}
.team-card:hover {
  border-color: rgba(201,168,76,0.3); transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}
.team-card .avatar {
  width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, rgba(201,168,76,0.15), rgba(201,168,76,0.05));
  margin: 0 auto 20px; display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; font-weight: 700; color: var(--color-gold);
  border: 1px solid rgba(201,168,76,0.2); font-family: var(--font-serif);
}
.team-card h4 { font-size: 1.05rem; margin-bottom: 6px; letter-spacing: 0.03em; }
.team-card .role { font-size: 0.82rem; color: var(--color-gold); letter-spacing: 0.05em; }
.team-card .name-zh { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 6px; }

/* ===== Property List ===== */
.property-list { display: flex; flex-direction: column; gap: 14px; }
.property-item {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); padding: 28px 24px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px; transition: var(--transition);
  position: relative; overflow: hidden;
}
.property-item::before {
  content: ''; position: absolute; left: 0; top: 30%; bottom: 30%;
  width: 3px; background: var(--color-gold); opacity: 0;
  transition: var(--transition); border-radius: 2px;
}
.property-item:hover {
  border-color: rgba(201,168,76,0.25);
  box-shadow: var(--shadow-gold);
}
.property-item:hover::before { opacity: 0.5; }
.property-info h3 {
  font-size: 1.05rem; margin-bottom: 6px; letter-spacing: 0.03em;
}
.property-info .meta { font-size: 0.85rem; color: var(--color-text-dim); }

/* ===== Page Hero ===== */
.page-hero {
  padding: 140px 24px 72px;
  text-align: center;
  background: linear-gradient(160deg, #0a0a14 0%, #111122 60%, #0a0a14 100%);
  position: relative; overflow: hidden;
}
.page-hero::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-dark), transparent);
  opacity: 0.3;
}
.page-hero h1 {
  color: var(--color-gold); font-family: var(--font-serif);
  letter-spacing: 0.1em; margin-bottom: 16px;
}
.page-hero .page-desc {
  color: var(--color-text-dim); max-width: 600px; margin: 0 auto;
  font-size: 1.05rem; letter-spacing: 0.06em; opacity: 0.8;
}

/* ===== Content Block ===== */
.content-block { padding: 72px 24px; }
.content-block .container { max-width: var(--max-width); margin: 0 auto; }
.content-block h2 {
  color: var(--color-gold); margin-bottom: 40px;
  font-family: var(--font-serif); letter-spacing: 0.06em;
}
.content-block h3 { margin-top: 44px; margin-bottom: 18px; color: var(--color-text); }
.content-block p { color: var(--color-text-dim); margin-bottom: 18px; font-size: 0.96rem; line-height: 1.85; }
.content-block ul { color: var(--color-text-dim); }
.content-block ul li {
  padding: 5px 0; padding-left: 22px; position: relative; font-size: 0.96rem; line-height: 1.7;
}
.content-block ul li::before { content: '\203a'; position: absolute; left: 4px; color: var(--color-gold); font-weight: 700; font-size: 1.2rem; }

/* ===== Table ===== */
.table-wrap { overflow-x: auto; margin: 28px 0; border-radius: var(--radius); }
table {
  width: 100%; border-collapse: collapse; font-size: 0.93rem;
  border: 1px solid var(--color-border); border-radius: var(--radius);
  overflow: hidden;
}
th, td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--color-border); }
th {
  color: var(--color-gold); font-weight: 600; white-space: nowrap;
  background: rgba(201,168,76,0.04); letter-spacing: 0.05em; font-size: 0.85rem;
}
td { color: var(--color-text-dim); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(201,168,76,0.03); }

/* ===== CTA Section ===== */
.cta-section {
  padding: 100px 24px; text-align: center;
  background: linear-gradient(135deg, #111122, #0a0a14);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(201,168,76,0.04) 0%, transparent 70%);
}
.cta-section h2 { color: var(--color-gold); font-family: var(--font-serif); margin-bottom: 20px; position: relative; }
.cta-section p { color: var(--color-text-dim); margin-bottom: 14px; position: relative; }
.cta-section .qr-placeholder {
  width: 160px; height: 160px; margin: 28px auto; background: rgba(201,168,76,0.04);
  border-radius: var(--radius); display: flex; align-items: center; justify-content: center;
  color: var(--color-text-dim); font-size: 0.85rem;
  border: 1px solid var(--color-border); position: relative;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg); border-top: 1px solid var(--color-border);
  padding: 60px 24px 36px;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; }
.footer-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px; margin-bottom: 40px;
}
.footer-col h4 {
  color: var(--color-gold); margin-bottom: 16px; font-size: 0.9rem;
  letter-spacing: 0.08em; font-weight: 600;
}
.footer-col p, .footer-col a {
  font-size: 0.85rem; color: var(--color-text-muted);
  display: block; margin-bottom: 8px; line-height: 1.6;
}
.footer-col a:hover { color: var(--color-gold); }
.footer-bottom {
  border-top: 1px solid var(--color-border); padding-top: 24px;
  text-align: center; font-size: 0.78rem; color: var(--color-text-muted);
}

/* ===== Animations ===== */
.fade-in {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 140px 24px 80px; }
  .content-block h2 { margin-bottom: 32px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .page-hero { padding: 130px 24px 56px; }
}

@media (max-width: 640px) {
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  h3 { font-size: 1.1rem; }

  .hero { padding: 120px 16px 60px; }
  .hero h1 { font-size: 2rem; }
  .hero .subtitle { font-size: 1rem; }
  .hero .hero-desc { font-size: 0.9rem; max-width: 100%; }
  .hero .hero-cta { padding: 12px 30px; font-size: 0.85rem; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-item { padding: 16px 8px; }
  .stat-item .stat-number { min-height: 44px; }
  .stat-number .stat-value { font-size: 1.8rem !important; }
  .stat-number .stat-unit { font-size: 0.9rem; }

  .section { padding: 56px 16px; }
  .content-block { padding: 48px 16px; }
  .content-block h2 { margin-bottom: 28px; }
  .content-block h3 { margin-top: 28px; }

  .services-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { padding: 28px 20px; }

  .business-tabs { gap: 6px; }
  .business-tab { padding: 8px 16px; font-size: 0.8rem; }

  .timeline-item { padding-left: 44px; margin-bottom: 28px; }
  .timeline-date { font-size: 0.78rem; }
  .timeline-content { font-size: 0.88rem; }

  .team-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .team-card { padding: 20px 12px; }
  .team-card .avatar { width: 56px; height: 56px; font-size: 1.2rem; }

  .property-item {
    flex-direction: column; text-align: center;
    padding: 20px 16px;
  }
  .property-info h3 { font-size: 0.95rem; }

  .page-hero { padding: 110px 16px 48px; }

  .cta-section { padding: 48px 16px; }
  .cta-section .qr-placeholder { width: 120px; height: 120px; }

  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-col h4 { font-size: 0.8rem; }
  .footer-col p, .footer-col a { font-size: 0.78rem; }

  .header-inner { padding: 0 16px; }
  .logo a { font-size: 1.05rem; gap: 6px; }
  .logo-img { height: 28px; }
  .logo a span { display: none; }

  table { font-size: 0.82rem; }
  th, td { padding: 8px 10px; }
}

@media (max-width: 400px) {
  .stats-grid { gap: 10px; }
  .stat-item { padding: 12px 6px; }
  .stat-number .stat-value { font-size: 1.5rem !important; }
  .stat-number .stat-unit { font-size: 0.78rem; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .business-tab { padding: 6px 12px; font-size: 0.75rem; }
}