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

:root {
  --wood-deep: #1A0F0A;
  --wood-dark: #2C1810;
  --wood-mid: #6B4226;
  --wood-warm: #A67C52;
  --wood-light: #C4956A;
  --wood-gold: #D4A574;
  --bg-cream: #FDF8F4;
  --bg-warm: #F5EDE4;
  --white: #FFFFFF;
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 8px 32px rgba(44, 24, 16, 0.08);
  --text-primary: #2C1810;
  --text-secondary: #8B7355;
  --text-light: #B8A088;
  --accent: #D4A574;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  background: var(--bg-cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== Nav ===== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 48px; height: 72px;
  display: flex; align-items: center; justify-content: space-between;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
nav.scrolled {
  background: rgba(253, 248, 244, 0.88);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(107, 66, 38, 0.08);
  height: 60px;
}
nav.scrolled .nav-logo { color: var(--wood-dark); }
nav.scrolled .nav-links a { color: var(--text-secondary); }
.nav-logo { font-size: 1.15rem; font-weight: 600; color: rgba(255,255,255,0.9); letter-spacing: 3px; transition: color 0.4s; }
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  text-decoration: none; color: rgba(255,255,255,0.65);
  font-size: 0.875rem; transition: color 0.3s; letter-spacing: 1px;
}
.nav-links a:hover { color: var(--wood-gold); }

/* ===== Hero ===== */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; position: relative; padding: 80px 40px 120px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('images/头图.jpg') center/cover no-repeat;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(26,15,10,0.3) 0%, rgba(26,15,10,0.55) 50%, rgba(26,15,10,0.85) 100%);
}
.hero-vignette {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  box-shadow: inset 0 0 200px 60px rgba(26,15,10,0.6);
}
.hero-glow {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 600px; height: 600px; z-index: 1; pointer-events: none;
  background: radial-gradient(circle, rgba(212,165,116,0.08) 0%, transparent 70%);
  animation: pulseGlow 6s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}
.hero-content { position: relative; z-index: 2; max-width: 860px; }
.hero-badge {
  display: inline-block; padding: 8px 28px;
  background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 100px; font-size: 0.75rem; color: var(--wood-gold);
  letter-spacing: 4px; margin-bottom: 40px; text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem); font-weight: 200;
  color: var(--white); letter-spacing: 8px; line-height: 1.2; margin-bottom: 20px;
  text-shadow: 0 4px 40px rgba(0,0,0,0.3);
}
.hero h1 span { display: block; font-weight: 600; letter-spacing: 12px; }
.hero-divider {
  width: 60px; height: 1px; background: linear-gradient(90deg, transparent, var(--wood-gold), transparent);
  margin: 0 auto 24px; opacity: 0.6;
}
.hero-slogan {
  font-size: clamp(0.95rem, 2vw, 1.15rem); color: rgba(255,255,255,0.6);
  letter-spacing: 6px; font-weight: 300; margin-bottom: 52px;
}
.hero-cta {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 48px;
  background: transparent; color: var(--wood-gold);
  border: 1px solid rgba(212, 165, 116, 0.4);
  border-radius: 100px; font-size: 0.9rem; cursor: pointer;
  letter-spacing: 3px; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); text-decoration: none;
  backdrop-filter: blur(4px);
}
.hero-cta:hover {
  background: var(--wood-gold); color: var(--wood-deep);
  border-color: var(--wood-gold);
  transform: translateY(-2px); box-shadow: 0 12px 40px rgba(212, 165, 116, 0.25);
}
.scroll-hint {
  position: absolute; bottom: 48px; left: 50%; transform: translateX(-50%); z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: rgba(255,255,255,0.35); font-size: 0.7rem; letter-spacing: 3px;
}
.scroll-line { width: 1px; height: 48px; background: linear-gradient(to bottom, var(--wood-gold), transparent); animation: scrollHint 2.5s ease infinite; }
@keyframes scrollHint {
  0%, 100% { transform: scaleY(1); opacity: 0.4; }
  50% { transform: scaleY(1.3); opacity: 0.9; }
}

/* ===== Section Common ===== */
section { padding: 120px 40px; }
.section-label {
  text-align: center; font-size: 0.75rem; letter-spacing: 4px;
  color: var(--wood-light); text-transform: uppercase; margin-bottom: 12px;
}
.section-title {
  text-align: center; font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 300; color: var(--wood-dark); letter-spacing: 4px; margin-bottom: 8px;
}
.section-subtitle {
  text-align: center; color: var(--text-secondary); font-size: 0.95rem;
  letter-spacing: 2px; margin-bottom: 64px; font-weight: 300;
}

/* ===== Services ===== */
.services { background: var(--bg-cream); }
.services-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  max-width: 1100px; margin: 0 auto;
}
.service-card {
  background: var(--glass-bg); backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px 24px; text-align: center;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: default;
  box-shadow: var(--glass-shadow);
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 48px rgba(44, 24, 16, 0.12);
  background: rgba(255, 255, 255, 0.65);
}
.service-icon {
  width: 138px; height: 138px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--wood-gold), var(--wood-light));
  border-radius: 50%; overflow: hidden; padding: 3px;
}
.service-icon img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 50%; display: block;
}
.service-card h3 {
  font-size: 1.1rem; font-weight: 500; color: var(--wood-dark);
  letter-spacing: 2px; margin-bottom: 8px;
}
.service-card p { font-size: 0.8rem; color: var(--text-secondary); letter-spacing: 1px; }

/* ===== Atmosphere ===== */
.atmosphere {
  background: linear-gradient(180deg, var(--bg-cream) 0%, #F0E3D5 50%, var(--bg-cream) 100%);
  position: relative; overflow: hidden;
}
.atmo-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  max-width: 1000px; margin: 0 auto;
}
.atmo-card {
  border-radius: var(--radius-lg); overflow: hidden; position: relative;
  aspect-ratio: 4/3; box-shadow: var(--glass-shadow);
}
.atmo-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.atmo-card:hover img { transform: scale(1.06); }
.atmo-card.large { grid-column: 1 / -1; aspect-ratio: 16/7; }
.atmo-text {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 40px 32px;
  background: linear-gradient(to top, rgba(26,15,10,0.7) 0%, rgba(26,15,10,0.2) 60%, transparent 100%);
  color: var(--white);
  transition: padding 0.3s;
}
.atmo-card:hover .atmo-text { padding-bottom: 48px; }
.atmo-text h3 { font-size: 1.3rem; font-weight: 400; letter-spacing: 3px; margin-bottom: 4px; }
.atmo-text p { font-size: 0.85rem; opacity: 0.85; letter-spacing: 1px; }

/* ===== Form ===== */
.contact { background: var(--bg-cream); }
.form-container {
  max-width: 560px; margin: 0 auto;
  background: var(--glass-bg); backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--glass-shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label {
  display: block; font-size: 0.8rem; color: var(--text-secondary);
  letter-spacing: 2px; margin-bottom: 8px;
}
.form-group input,
.form-group select {
  width: 100%; padding: 14px 16px;
  background: rgba(255, 255, 255, 0.7); border: 1px solid rgba(107, 66, 38, 0.15);
  border-radius: var(--radius-sm); font-size: 0.95rem; color: var(--text-primary);
  font-family: inherit; transition: all 0.3s; outline: none;
}
.form-group input:focus,
.form-group select:focus {
  border-color: var(--wood-light); background: var(--white);
  box-shadow: 0 0 0 3px rgba(196, 149, 106, 0.12);
}
.form-group input::placeholder { color: var(--text-light); }
.form-submit {
  width: 100%; padding: 16px; margin-top: 8px;
  background: var(--wood-dark); color: var(--white);
  border: none; border-radius: 100px; font-size: 1rem;
  cursor: pointer; letter-spacing: 3px; font-family: inherit;
  transition: all 0.3s;
}
.form-submit:hover { background: var(--wood-mid); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(44, 24, 16, 0.2); }
.form-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.form-success {
  display: none; text-align: center; padding: 32px 0;
}
.form-success.show { display: block; }
.form-success svg { width: 56px; height: 56px; color: var(--wood-light); margin-bottom: 16px; }
.form-success h3 { font-size: 1.3rem; font-weight: 400; color: var(--wood-dark); letter-spacing: 2px; margin-bottom: 8px; }
.form-success p { color: var(--text-secondary); font-size: 0.9rem; }

/* ===== Footer ===== */
footer {
  padding: 60px 40px; text-align: center; background: var(--wood-deep); color: var(--text-light);
}
footer .footer-brand { font-size: 1.1rem; letter-spacing: 4px; color: var(--wood-gold); margin-bottom: 12px; }
footer .footer-addr { font-size: 0.85rem; letter-spacing: 1px; line-height: 1.8; opacity: 0.7; }
footer .footer-copy { margin-top: 32px; font-size: 0.75rem; opacity: 0.4; letter-spacing: 1px; }

/* ===== Animations ===== */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .atmo-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  nav { padding: 0 24px; }
  section { padding: 80px 20px; }
  .hero { padding: 60px 20px 100px; }
  .form-container { padding: 32px 24px; }
}
@media (max-width: 480px) {
  .services-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero h1 { letter-spacing: 4px; }
  .hero h1 span { letter-spacing: 6px; }
}