/* ==========================================
   zjjhy.com — 张家界会议会展网
   设计: 现代城市会议 × 自然风景区
   ========================================== */

/* --- CSS Variables --- */
:root {
  --navy: #1A2332;
  --navy-light: #243447;
  --green: #3E7B5C;
  --green-light: #5A9E78;
  --gold: #D4A853;
  --gold-light: #E8C97A;
  --cream: #F8F6F1;
  --mist: #EDE8DF;
  --text: #2D3748;
  --text-light: #5A6978;
  --white: #FCFBF8;
  --dark: #111827;
  --shadow-sm: 0 2px 12px rgba(17,24,39,0.06);
  --shadow-md: 0 8px 32px rgba(17,24,39,0.08);
  --shadow-lg: 0 16px 48px rgba(17,24,39,0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --max-w: 1200px;
  --nav-h: 76px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4, .serif {
  font-family: "Noto Serif SC", "STSong", "SimSun", "Songti SC", "PingFang SC", serif;
  font-weight: 600;
  letter-spacing: 0.02em;
}
h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); line-height: 1.3; color: var(--dark); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); line-height: 1.35; color: var(--dark); }
h3 { font-size: clamp(1.15rem, 2vw, 1.45rem); line-height: 1.45; color: var(--dark); }
p { margin-bottom: 1rem; color: var(--text); }
.text-lg { font-size: 1.15rem; line-height: 1.85; }
.text-sm { font-size: 0.9rem; color: var(--text-light); }
.text-gold { color: var(--gold); }
.text-green { color: var(--green); }

/* --- Navigation --- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(252,251,248,0.94);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(26,35,50,0.08);
  transition: box-shadow 0.3s ease;
}
.nav.scrolled { box-shadow: 0 2px 20px rgba(17,24,39,0.08); }
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 2rem;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: "Noto Serif SC", serif;
  font-size: 1.35rem; font-weight: 700;
  color: var(--navy); text-decoration: none;
  letter-spacing: 0.04em;
  display: flex; align-items: center; gap: 0.5rem;
}
.nav-logo .logo-icon {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--navy), var(--green));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-size: 1rem; font-weight: 700;
}
.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a {
  text-decoration: none; color: var(--text);
  font-size: 0.95rem; font-weight: 500;
  padding: 0.35rem 0;
  position: relative;
  transition: color 0.25s;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 100%;
  height: 2px; background: var(--gold);
  transform: scaleX(0); transition: transform 0.3s ease;
}
.nav-links a:hover { color: var(--navy); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--navy); font-weight: 600; }
.nav-links a.active::after { transform: scaleX(1); background: var(--green); }
.nav-cta {
  background: var(--gold); color: var(--navy) !important;
  padding: 0.5rem 1.3rem !important;
  border-radius: 6px; font-weight: 600 !important;
  transition: background 0.3s, transform 0.2s !important;
}
.nav-cta:hover { background: var(--gold-light); transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

/* --- Mobile Nav Toggle --- */
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--navy);
  margin: 5px 0; transition: all 0.3s ease;
}

/* --- Hero Section --- */
.hero {
  position: relative; min-height: 85vh; display: flex; align-items: center;
  background: linear-gradient(160deg, #1A2332 0%, #243447 30%, #1A2F3D 55%, #2D5A3F 100%);
  overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 70% 20%, rgba(212,168,83,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(62,123,92,0.2) 0%, transparent 50%);
}
/* Mountain SVG background */
.hero-mountains {
  position: absolute; bottom: 0; left: 0; right: 0; height: 45%;
  opacity: 0.15;
}
.hero-content {
  position: relative; z-index: 2;
  max-width: var(--max-w); margin: 0 auto; padding: 6rem 2rem 4rem;
  text-align: center; color: var(--white);
}
.hero-eyebrow {
  display: inline-block; font-size: 0.85rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--gold);
  border: 1px solid rgba(212,168,83,0.3);
  padding: 0.3rem 1.2rem; border-radius: 20px; margin-bottom: 1.5rem;
}
.hero h1 {
  font-size: clamp(2.6rem, 5.5vw, 4rem);
  color: var(--white); font-weight: 700;
  margin-bottom: 1rem; line-height: 1.25;
}
.hero h1 span { color: var(--gold); }
.hero p {
  font-size: 1.2rem; color: rgba(255,255,255,0.75);
  max-width: 600px; margin: 0 auto 2.5rem;
  line-height: 1.8;
}
.hero-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 0.85rem 2rem;
  font-size: 1rem; font-weight: 600; text-decoration: none;
  border-radius: 8px; cursor: pointer;
  transition: all 0.3s ease; border: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--gold); color: var(--navy);
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,83,0.35); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn-white {
  background: var(--white); color: var(--navy);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-sm { padding: 0.55rem 1.3rem; font-size: 0.9rem; }

/* --- Section Common --- */
.section { padding: 5rem 2rem; }
.section-dark { background: var(--navy); color: var(--white); }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-cream { background: var(--cream); }
.section-header {
  text-align: center; max-width: 700px; margin: 0 auto 3.5rem;
}
.section-header h2 { margin-bottom: 0.75rem; }
.section-header p { color: var(--text-light); font-size: 1.1rem; }
.section-header.light h2 { color: var(--white); }
.section-header.light p { color: rgba(255,255,255,0.65); }

/* --- Stats Bar --- */
.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 2rem; max-width: var(--max-w);
  margin: -3rem auto 0; position: relative; z-index: 5;
  padding: 0 2rem;
}
.stat-card {
  background: var(--white); border-radius: var(--radius);
  padding: 2rem 1.5rem; text-align: center;
  box-shadow: var(--shadow-md); border: 1px solid rgba(26,35,50,0.06);
}
.stat-num {
  font-family: "Noto Serif SC", serif;
  font-size: 2.2rem; font-weight: 700;
  color: var(--navy); line-height: 1.2;
}
.stat-num span { color: var(--gold); }
.stat-label { font-size: 0.9rem; color: var(--text-light); margin-top: 0.4rem; }

/* --- Cards Grid --- */
.cards-grid { display: grid; gap: 2rem; max-width: var(--max-w); margin: 0 auto; }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 2.5rem 2rem; border: 1px solid rgba(26,35,50,0.06);
  box-shadow: var(--shadow-sm); transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem; font-size: 1.5rem;
}
.card-icon.navy { background: rgba(26,35,50,0.08); }
.card-icon.green { background: rgba(62,123,92,0.1); }
.card-icon.gold { background: rgba(212,168,83,0.15); }
.card h3 { margin-bottom: 0.75rem; font-size: 1.2rem; }
.card p { font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }

/* --- Features with Icons --- */
.feature-row {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem;
  max-width: var(--max-w); margin: 0 auto;
}
.feature-item {
  display: flex; gap: 1.25rem; align-items: flex-start;
  padding: 1.5rem; border-radius: var(--radius);
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06);
}
.feature-dot {
  flex-shrink: 0; width: 12px; height: 12px; border-radius: 50%;
  margin-top: 0.45rem;
}
.feature-dot.gold { background: var(--gold); }
.feature-dot.green { background: var(--green-light); }
.feature-text h4 { font-size: 1.05rem; margin-bottom: 0.35rem; color: var(--white); }
.feature-text p { font-size: 0.92rem; color: rgba(255,255,255,0.6); margin-bottom: 0; }

/* --- Venue Cards --- */
.venue-card {
  background: var(--white); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid rgba(26,35,50,0.06);
  box-shadow: var(--shadow-sm);
}
.venue-header {
  padding: 2.5rem 2rem 1.5rem;
  position: relative;
  background: linear-gradient(135deg, var(--cream), var(--mist));
}
.venue-badge {
  display: inline-block; font-size: 0.8rem; font-weight: 600;
  padding: 0.25rem 0.75rem; border-radius: 12px; margin-bottom: 0.75rem;
}
.venue-badge.premium { background: rgba(26,35,50,0.1); color: var(--navy); }
.venue-badge.boutique { background: rgba(62,123,92,0.1); color: var(--green); }
.venue-body { padding: 1.5rem 2rem 2.5rem; }
.venue-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1.25rem 0; }
.venue-stat-item { text-align: center; }
.venue-stat-val { font-size: 1.3rem; font-weight: 700; color: var(--navy); }
.venue-stat-lbl { font-size: 0.8rem; color: var(--text-light); }
.venue-features { list-style: none; margin: 1rem 0; }
.venue-features li {
  padding: 0.4rem 0; font-size: 0.92rem; color: var(--text-light);
  padding-left: 1.5rem; position: relative;
}
.venue-features li::before {
  content: '✓'; position: absolute; left: 0; color: var(--green);
  font-weight: 700; font-size: 0.8rem;
}
.venue-scene {
  display: inline-block; font-size: 0.83rem; background: var(--cream);
  padding: 0.35rem 0.85rem; border-radius: 6px; margin-top: 0.75rem;
  color: var(--text-light);
}

/* --- Table --- */
.data-table {
  width: 100%; border-collapse: collapse;
  background: var(--white); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
}
.data-table thead { background: var(--navy); }
.data-table th {
  color: var(--white); padding: 0.9rem 1.25rem; text-align: left;
  font-size: 0.9rem; font-weight: 600; letter-spacing: 0.02em;
}
.data-table td { padding: 0.85rem 1.25rem; border-bottom: 1px solid rgba(26,35,50,0.05); font-size: 0.93rem; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--cream); }

/* --- Case Cards --- */
.case-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 2.5rem; border: 1px solid rgba(26,35,50,0.06);
  box-shadow: var(--shadow-sm); margin-bottom: 2rem;
}
.case-meta {
  display: flex; gap: 1.5rem; flex-wrap: wrap;
  margin: 1rem 0 1.5rem; font-size: 0.9rem;
}
.case-meta span {
  display: flex; align-items: center; gap: 0.4rem;
  color: var(--text-light);
}
.case-highlight {
  background: var(--cream); border-radius: var(--radius);
  padding: 1.25rem 1.5rem; margin: 1.25rem 0;
  border-left: 4px solid var(--gold);
}
.case-highlight p { margin-bottom: 0; font-size: 0.93rem; }
.case-card.flag { border-left: 4px solid var(--navy); }

/* --- Timeline --- */
.timeline { max-width: 800px; margin: 0 auto; position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--gold), var(--green));
  transform: translateX(-50%);
}
.timeline-item {
  display: flex; align-items: flex-start; margin-bottom: 2.5rem;
  position: relative;
}
.timeline-item:nth-child(odd) { flex-direction: row; }
.timeline-item:nth-child(even) { flex-direction: row-reverse; }
.timeline-dot {
  position: absolute; left: 50%; top: 0.5rem;
  width: 16px; height: 16px; background: var(--gold);
  border-radius: 50%; transform: translateX(-50%);
  border: 3px solid var(--white); box-shadow: 0 2px 8px rgba(212,168,83,0.3);
  z-index: 2;
}
.timeline-content {
  width: 45%; padding: 1.25rem 1.5rem;
  background: var(--white); border-radius: var(--radius);
  border: 1px solid rgba(26,35,50,0.05); box-shadow: var(--shadow-sm);
}
.timeline-year {
  font-family: "Noto Serif SC", serif;
  font-size: 1.3rem; font-weight: 700; color: var(--navy);
  margin-bottom: 0.25rem;
}
.timeline-content p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }

/* --- Testimonials --- */
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; max-width: var(--max-w); margin: 0 auto; }
.testimonial-card {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg); padding: 2rem;
}
.testimonial-card blockquote {
  font-size: 0.93rem; color: rgba(255,255,255,0.8);
  line-height: 1.8; font-style: italic; margin: 0 0 1.25rem;
  quotes: none;
}
.testimonial-card .author {
  font-size: 0.85rem; color: var(--gold);
  font-weight: 500;
}

/* --- Contact Info --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; max-width: var(--max-w); margin: 0 auto; }
.contact-info-item {
  display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.5rem;
  padding: 1.25rem; border-radius: var(--radius); background: var(--cream);
}
.contact-info-icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
  background: rgba(26,35,50,0.06);
}
.contact-info-text h4 { font-size: 0.95rem; margin-bottom: 0.2rem; }
.contact-info-text p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 0; }

/* --- Commitment Cards --- */
.commitment-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; max-width: var(--max-w); margin: 0 auto; }
.commitment-card { text-align: center; padding: 2rem 1.5rem; }
.commitment-num {
  font-family: "Noto Serif SC", serif;
  font-size: 2.5rem; font-weight: 700; color: var(--gold);
  margin-bottom: 0.5rem;
}
.commitment-card h4 { font-size: 1rem; margin-bottom: 0.5rem; }
.commitment-card p { font-size: 0.88rem; color: var(--text-light); }

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  text-align: center; padding: 5rem 2rem;
}
.cta-section h2 { color: var(--white); margin-bottom: 0.75rem; }
.cta-section p { color: rgba(255,255,255,0.7); margin-bottom: 2rem; font-size: 1.05rem; }
.cta-section .contact-phones { color: var(--gold); font-size: 1.15rem; margin-top: 1.25rem; }
.cta-section .phone-link,.contact-info-text .phone-link { color: inherit; text-decoration: none; transition: color 0.2s; padding: 4px 0; display: inline-block; min-width: 44px; min-height: 44px; line-height: 44px; }
.cta-section .phone-link:hover,.cta-section .phone-link:active,.contact-info-text .phone-link:hover,.contact-info-text .phone-link:active { text-decoration: underline; color: #fff; }

/* --- Process Steps --- */
.process-steps {
  display: flex; max-width: var(--max-w); margin: 0 auto;
  gap: 0; counter-reset: step;
}
.process-step {
  flex: 1; text-align: center; position: relative; padding: 0 0.5rem;
}
.process-step::after {
  content: ''; position: absolute; top: 30px; left: 60%; right: -40%;
  height: 2px; background: var(--mist);
}
.process-step:last-child::after { display: none; }
.process-num {
  width: 60px; height: 60px; border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--green));
  color: var(--white); font-size: 1.4rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
}
.process-step h4 { font-size: 0.95rem; margin-bottom: 0.35rem; }
.process-step p { font-size: 0.83rem; color: var(--text-light); }

/* --- Page Banner (non-home) --- */
.page-banner {
  background: linear-gradient(160deg, #1A2332 0%, #243447 40%, #1A2F3D 70%, #2D5A3F 100%);
  padding: 8rem 2rem 4rem; text-align: center; position: relative; overflow: hidden;
}
.page-banner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 60% 80%, rgba(62,123,92,0.12) 0%, transparent 60%);
}
.page-banner h1 { color: var(--white); position: relative; z-index: 1; }
.page-banner p { color: rgba(255,255,255,0.65); font-size: 1.1rem; position: relative; z-index: 1; max-width: 600px; margin: 0.5rem auto 0; }

/* --- Rich Content Section --- */
.content-block { max-width: 860px; margin: 0 auto; }
.content-block h2 { margin: 2.5rem 0 1rem; }
.content-block h3 { margin: 1.75rem 0 0.75rem; color: var(--navy); }
.content-block p { line-height: 1.85; color: var(--text); }

/* --- Service Module --- */
.service-module {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 2.5rem; margin-bottom: 2rem;
  border: 1px solid rgba(26,35,50,0.06);
  box-shadow: var(--shadow-sm);
}
.service-module-header {
  display: flex; align-items: center; gap: 1rem; margin-bottom: 1.25rem;
}
.service-module-num {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, var(--navy), var(--green));
  color: var(--white); font-size: 1.2rem; font-weight: 700;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.service-module h3 { margin-bottom: 0.25rem; }
.service-sub-items {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.25rem;
}
.service-sub-item {
  background: var(--cream); padding: 1rem 1.25rem; border-radius: var(--radius);
  font-size: 0.92rem; color: var(--text);
}

/* --- Tag / Badge --- */
.tag {
  display: inline-block; font-size: 0.8rem; padding: 0.2rem 0.7rem;
  border-radius: 10px; margin-right: 0.4rem; margin-bottom: 0.3rem;
}
.tag-green { background: rgba(62,123,92,0.1); color: var(--green); }
.tag-navy { background: rgba(26,35,50,0.06); color: var(--navy); }
.tag-gold { background: rgba(212,168,83,0.12); color: #B8912E; }

/* --- Footer --- */
.footer {
  background: var(--navy); color: rgba(255,255,255,0.6);
  padding: 3rem 2rem 2rem; text-align: center;
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; }
.footer-links { display: flex; gap: 2rem; justify-content: center; list-style: none; flex-wrap: wrap; margin-bottom: 1.5rem; }
.footer-links a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 0.9rem; transition: color 0.25s; }
.footer-links a:hover { color: var(--gold); }
.footer p { color: rgba(255,255,255,0.35); font-size: 0.85rem; margin-bottom: 0; }

/* --- Utility --- */
.container { max-width: var(--max-w); margin: 0 auto; }
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

/* --- Responsive --- */
@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: var(--nav-h); left: 0; right: 0; background: var(--white);
    padding: 1.5rem 2rem; gap: 1rem;
    box-shadow: var(--shadow-lg); border-bottom: 1px solid rgba(26,35,50,0.06);
  }
  .nav-toggle { display: block; }
  .nav-cta { text-align: center; display: block; }
  .hero { min-height: 70vh; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1rem; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); margin-top: -2rem; }
  .cards-2, .cards-3, .cards-4 { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .commitment-grid { grid-template-columns: 1fr; }
  .process-steps { flex-direction: column; gap: 1.5rem; }
  .process-step::after { display: none; }
  .timeline::before { left: 1.5rem; }
  .timeline-item, .timeline-item:nth-child(even) { flex-direction: row; }
  .timeline-dot { left: 1.5rem; }
  .timeline-content { width: calc(100% - 3rem); margin-left: 3rem; }
  .service-sub-items { grid-template-columns: 1fr; }
  .venue-stats { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 1.25rem; }
  .page-banner { padding: 7rem 1.25rem 3rem; }
}