:root {
  --stone-deep: #2E2C28;
  --stone-dark: #3A3833;
  --stone-mid: #6B6963;
  --stone-light: #A8A49C;
  --stone-pale: #C9C3B5;
  --mist: #E8E3D8;
  --water-ink: #3D4F52;
  --water-deep: #2A3839;
  --paper: #F5F2EC;
  --paper-warm: #EFEAE0;
  --paper-cool: #EDF0EE;
  --accent-rust: #8B5A3C;
  --accent-moss: #5F6B4F;
  --accent-gold: #9C8A5A;
  --line: #C9C3B5;
  --line-soft: #DDD8C9;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Serif SC', 'Source Han Serif SC', 'Source Han Serif CN', 'Songti SC', 'STSong', 'SimSun', serif;
  background: var(--paper);
  color: var(--stone-deep);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  overflow-x: hidden;
}

::selection { background: var(--accent-rust); color: var(--paper); }

/* ==================== 导航 ==================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(245,242,236,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201,195,181,0.4);
  transition: all 0.4s ease;
}

.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 16px clamp(16px, 4vw, 40px);
  display: flex; justify-content: space-between; align-items: center;
}

.nav-brand {
  display: flex; align-items: center; gap: 12px;
  text-decoration: none; cursor: pointer;
}

.nav-stone-mark {
  width: 28px; height: 20px;
  background: linear-gradient(135deg, var(--stone-dark) 0%, var(--stone-deep) 100%);
  border-radius: 42% 58% 55% 45% / 60% 40% 60% 40%;
  flex-shrink: 0;
}

.nav-brand-cn {
  font-size: clamp(16px, 2.5vw, 18px); font-weight: 500;
  letter-spacing: 4px; color: var(--stone-deep);
}

.nav-brand-en {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 11px; letter-spacing: 3px;
  color: var(--stone-light); text-transform: uppercase;
}

.nav-links {
  display: flex; gap: clamp(10px, 1.5vw, 28px); list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 14px; color: var(--stone-mid);
  text-decoration: none; letter-spacing: 2px;
  position: relative; transition: color 0.3s;
  padding: 6px 2px; cursor: pointer;
  white-space: nowrap;
}

.nav-links a:hover { color: var(--accent-rust); }

.nav-links a.active {
  color: var(--accent-rust);
  font-weight: 500;
}

.nav-links a.active::after {
  content: ''; position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px;
  background: var(--accent-rust);
}

.nav-links a::after {
  content: ''; position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--accent-rust);
  transition: width 0.3s ease;
}

.nav-links a:hover::after { width: 100%; }
.nav-links a.active::after { width: 100%; height: 2px; }

.nav-cta {
  padding: 8px 24px;
  border: 1px solid var(--accent-rust);
  color: var(--accent-rust);
  font-size: 13px; letter-spacing: 3px;
  text-decoration: none;
  transition: all 0.3s;
  white-space: nowrap;
  cursor: pointer;
}

.nav-cta:hover {
  background: var(--accent-rust); color: var(--paper);
}

.nav-mobile-toggle {
  display: none;
  background: none; border: none;
  cursor: pointer; padding: 8px;
}

.nav-mobile-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--stone-deep);
  margin: 5px 0; transition: 0.3s;
}

/* ==================== 页面切换容器 ==================== */
.page-container {
  padding-top: 0;
}

.page-panel {
  display: none;
  animation: pageFadeIn 0.6s ease;
}

.page-panel.active {
  display: block;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==================== Hero ==================== */
.hero {
  min-height: calc(100vh - 0px);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: linear-gradient(170deg, #E8E3D8 0%, #D8D2C4 35%, #C2BCA8 100%);
  text-align: center; padding: 100px clamp(16px, 5vw, 40px) 80px;
}

.hero::before {
  content: ''; position: absolute;
  top: 50%; left: 50%;
  width: 80vw; height: 80vh;
  border-radius: 48% 52% 51% 49% / 55% 45% 55% 45%;
  background: radial-gradient(ellipse at center, rgba(90,85,75,0.07) 0%, transparent 65%);
  transform: translate(-50%, -50%);
  animation: ripple 14s ease-in-out infinite;
}

@keyframes ripple {
  0%, 100% { border-radius: 48% 52% 51% 49% / 55% 45% 55% 45%; transform: translate(-50%,-50%) scale(1); }
  50% { border-radius: 52% 48% 49% 51% / 45% 55% 45% 55%; transform: translate(-50%,-50%) scale(1.05); }
}

.hero-content { position: relative; z-index: 1; max-width: 800px; }

.hero-stone {
  width: 100px; height: 70px;
  background: linear-gradient(135deg, #5C5852 0%, #2E2C28 100%);
  border-radius: 42% 58% 55% 45% / 60% 40% 60% 40%;
  margin: 0 auto clamp(24px, 4vw, 40px);
  box-shadow: 0 20px 60px rgba(50,45,35,0.25);
  animation: stoneFloat 6s ease-in-out infinite;
}

@keyframes stoneFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero-eyebrow {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: clamp(11px, 1.5vw, 13px); letter-spacing: clamp(5px, 1.5vw, 10px);
  text-transform: uppercase;
  color: var(--stone-mid); margin-bottom: clamp(20px, 3vw, 28px);
}

.hero-title {
  font-size: clamp(42px, 9vw, 64px); font-weight: 200;
  letter-spacing: clamp(6px, 3vw, 12px); color: var(--stone-deep);
  margin-bottom: 20px; line-height: 1.2;
}

.hero-subtitle {
  font-size: clamp(15px, 2.5vw, 20px); font-weight: 300;
  letter-spacing: clamp(2px, 1vw, 4px); color: var(--water-ink);
  line-height: 2.2; max-width: 600px; margin: 0 auto clamp(30px, 5vw, 50px);
}

.hero-subtitle strong { font-weight: 500; color: var(--accent-rust); }

.hero-buttons {
  display: flex; gap: 20px; justify-content: center; flex-wrap: wrap;
}

.hero-btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: clamp(12px, 2vw, 18px) clamp(32px, 5vw, 56px);
  background: var(--accent-rust); color: var(--paper);
  font-size: clamp(14px, 2vw, 16px); letter-spacing: 4px;
  text-decoration: none; transition: all 0.4s;
  min-height: 48px; cursor: pointer;
}

.hero-btn-primary:hover {
  background: var(--stone-deep); transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(60,55,45,0.2);
}

.hero-btn-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: clamp(12px, 2vw, 18px) clamp(28px, 4vw, 48px);
  border: 1px solid var(--stone-mid); color: var(--stone-deep);
  font-size: clamp(13px, 1.8vw, 15px); letter-spacing: 3px;
  text-decoration: none; transition: all 0.3s;
  min-height: 48px; cursor: pointer;
}

.hero-btn-secondary:hover {
  border-color: var(--accent-rust); color: var(--accent-rust);
}

.hero-nav-cards {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 12px; margin-top: clamp(40px, 6vw, 60px);
  position: relative; z-index: 1;
}

.hero-nav-card {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  background: rgba(245,242,236,0.6);
  border: 1px solid rgba(201,195,181,0.5);
  color: var(--stone-mid);
  font-size: 13px; letter-spacing: 2px;
  cursor: pointer; transition: all 0.3s;
  text-decoration: none;
}

.hero-nav-card:hover {
  background: rgba(245,242,236,0.9);
  border-color: var(--accent-rust);
  color: var(--accent-rust);
  transform: translateY(-2px);
}

.hero-nav-card .num {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 16px; color: var(--accent-rust);
  font-weight: 400;
}

/* ==================== 通用板块 ==================== */
.section {
  max-width: 1100px; margin: 0 auto;
  padding: clamp(60px, 10vw, 120px) clamp(20px, 4vw, 40px);
  position: relative;
}

.section-wide {
  max-width: none; padding: clamp(60px, 10vw, 120px) 0;
}

.section-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

.section-number {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: clamp(36px, 6vw, 60px); font-weight: 300;
  color: var(--stone-pale); line-height: 1;
  margin-bottom: -10px; letter-spacing: 4px;
}

.section-title {
  font-size: clamp(22px, 4vw, 32px); font-weight: 500;
  color: var(--stone-deep); letter-spacing: clamp(3px, 1vw, 6px);
  margin-bottom: 10px;
}

.section-eng {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 14px; letter-spacing: 4px;
  color: var(--stone-light); text-transform: uppercase;
  margin-bottom: 20px;
}

.section-line {
  width: 40px; height: 2px;
  background: var(--accent-rust);
  margin-bottom: clamp(30px, 5vw, 50px); opacity: 0.7;
}

.lead {
  font-size: clamp(15px, 2vw, 18px); font-weight: 400;
  color: var(--water-ink);
  border-left: 3px solid var(--accent-rust);
  padding-left: clamp(16px, 2vw, 28px); margin-bottom: 40px;
  line-height: 2.1;
}

.section p {
  margin-bottom: 20px; font-size: 15px;
  color: var(--stone-deep); text-align: justify;
}

/* ==================== 关于·活法 ==================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(30px, 6vw, 80px); margin-top: 40px;
  align-items: start;
}

.about-left p {
  font-size: clamp(14px, 2vw, 16px); margin-bottom: 24px;
  line-height: 2.1;
}

.about-left .highlight {
  font-size: clamp(18px, 2.5vw, 20px); font-weight: 400;
  color: var(--water-ink); line-height: 2.2;
}

.about-right {
  background: var(--paper-warm);
  padding: clamp(28px, 4vw, 50px) clamp(24px, 4vw, 50px);
  border-left: 3px solid var(--accent-moss);
}

.about-right h4 {
  font-size: clamp(16px, 2vw, 18px); font-weight: 600;
  color: var(--water-ink); margin-bottom: 20px;
  letter-spacing: 2px;
}

.about-right .layer { margin-bottom: 28px; }
.about-right .layer:last-child { margin-bottom: 0; }

.about-right .layer-title {
  font-size: clamp(14px, 1.8vw, 15px); font-weight: 600;
  color: var(--accent-rust); margin-bottom: 8px;
  letter-spacing: 1px;
}

.about-right .layer-desc {
  font-size: clamp(13px, 1.8vw, 14px); color: var(--stone-mid);
  line-height: 1.9;
}

/* 阴阳互含图 */
.yin-yang-block {
  margin-top: clamp(50px, 8vw, 80px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 40px); align-items: center;
}

.yin-yang-visual {
  position: relative;
  height: clamp(220px, 30vw, 300px);
  display: flex; align-items: center; justify-content: center;
}

.yin-yang-visual svg { width: 100%; max-width: 300px; }

.yin-yang-text h4 {
  font-size: clamp(18px, 2.5vw, 22px); font-weight: 500;
  color: var(--stone-deep); margin-bottom: 20px;
  letter-spacing: 3px;
}

.yin-yang-text .yy-quote {
  font-size: clamp(16px, 2.5vw, 20px); font-weight: 300;
  color: var(--water-ink); line-height: 2.2;
  letter-spacing: 2px; margin-bottom: 24px;
  padding-left: 20px;
  border-left: 2px solid var(--accent-rust);
}

.yin-yang-text p {
  font-size: clamp(13px, 1.8vw, 14px); color: var(--stone-mid);
  line-height: 2;
}

/* ==================== 理念·四重信念 ==================== */
.belief-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(20px, 3vw, 40px); margin-top: 40px;
}

.belief-card {
  position: relative;
  padding: clamp(32px, 4vw, 48px) clamp(24px, 3vw, 40px);
  background: var(--paper);
  border-top: 2px solid var(--accent-rust);
}

.belief-roman {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: clamp(48px, 6vw, 72px); font-weight: 300;
  color: rgba(139,90,60,0.15); line-height: 1;
  position: absolute; top: 16px; right: 24px;
}

.belief-title {
  font-size: clamp(16px, 2vw, 18px); font-weight: 600;
  color: var(--water-ink); letter-spacing: 2px; margin-bottom: 16px;
  position: relative; z-index: 1;
}

.belief-text {
  font-size: 14px; color: var(--stone-mid);
  line-height: 2; position: relative; z-index: 1;
}

.belief-text strong { color: var(--accent-rust); font-weight: 600; }

/* ==================== 石语 ==================== */
.philosophy {
  background: var(--stone-deep);
  color: var(--mist);
  position: relative; overflow: hidden;
}

.philosophy::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(139,90,60,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(95,107,79,0.08) 0%, transparent 50%);
}

.philosophy .section-number { color: rgba(168,164,156,0.2); }
.philosophy .section-title { color: var(--paper); }
.philosophy .section-eng { color: var(--stone-light); }
.philosophy .section-line { background: var(--accent-gold); }

.philosophy-intro {
  text-align: center; max-width: 700px;
  margin: 0 auto 60px;
}

.philosophy-intro p {
  font-size: clamp(16px, 2.5vw, 20px); text-align: center;
  color: var(--paper); font-weight: 300;
  letter-spacing: 3px; line-height: 2.2;
}

.philosophy-intro em {
  font-style: normal; color: var(--accent-gold);
}

.stone-whispers { position: relative; padding: 40px 0; }

.whisper-track {
  display: flex;
  gap: 32px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 20px clamp(20px, 4vw, 40px) 40px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-gold) transparent;
}

.whisper-track::-webkit-scrollbar { height: 4px; }
.whisper-track::-webkit-scrollbar-track { background: transparent; }
.whisper-track::-webkit-scrollbar-thumb { background: var(--accent-gold); border-radius: 2px; }

.whisper-card {
  flex: 0 0 clamp(300px, 85vw, 380px);
  scroll-snap-align: center;
  background: linear-gradient(145deg, rgba(58,56,51,0.6) 0%, rgba(46,44,40,0.8) 100%);
  border: 1px solid rgba(156,138,90,0.2);
  padding: clamp(28px, 4vw, 50px) clamp(24px, 3vw, 44px);
  position: relative;
  transition: all 0.4s ease;
  min-height: clamp(300px, 40vw, 360px);
  display: flex; flex-direction: column;
  justify-content: space-between;
}

.whisper-card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.whisper-card-num {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: clamp(36px, 5vw, 48px); font-weight: 300;
  color: rgba(156,138,90,0.3);
  line-height: 1; margin-bottom: 20px;
}

.whisper-card-label {
  font-size: 11px; letter-spacing: 4px;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 20px; font-weight: 500;
}

.whisper-card-text {
  font-size: clamp(15px, 2vw, 19px); font-weight: 300;
  color: var(--paper); letter-spacing: 2px;
  line-height: 2.2; flex-grow: 1;
}

.whisper-card-text strong {
  color: var(--accent-gold); font-weight: 500;
}

.whisper-card-author {
  margin-top: 24px;
  font-size: 13px; color: var(--stone-light);
  letter-spacing: 2px;
  border-top: 1px solid rgba(156,138,90,0.15);
  padding-top: 20px;
}

.whisper-card-author span {
  display: block;
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 12px; color: var(--stone-pale);
  margin-top: 4px; letter-spacing: 2px;
  font-style: italic;
}

.whisper-hint {
  text-align: center; margin-top: 30px;
  font-size: 14px; color: var(--stone-light);
  letter-spacing: 3px; font-style: italic;
}

/* ==================== 深色主张条 ==================== */
.manifesto {
  background: #1C1A18;
  color: var(--paper);
  text-align: center;
  padding: clamp(60px, 10vw, 100px) clamp(20px, 5vw, 40px);
  position: relative; overflow: hidden;
}

.manifesto::before {
  content: '石'; position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(200px, 40vw, 500px);
  font-family: 'Noto Serif SC', serif;
  font-weight: 700;
  color: rgba(156,138,90,0.04);
  line-height: 1; pointer-events: none;
}

.manifesto-content {
  position: relative; z-index: 1;
  max-width: 700px; margin: 0 auto;
}

.manifesto-text {
  font-size: clamp(18px, 3vw, 26px); font-weight: 300;
  letter-spacing: clamp(3px, 1vw, 6px);
  line-height: clamp(2.2, 4vw, 2.8);
  color: var(--mist);
}

.manifesto-text strong {
  color: var(--accent-gold); font-weight: 500;
}

/* ==================== 沙龙·活动简介 ==================== */
.seat-structure {
  background: white;
  border: 1px solid var(--line);
  padding: clamp(30px, 5vw, 60px) clamp(20px, 4vw, 50px); margin: 40px 0;
  text-align: center;
}

.seat-formula {
  font-size: clamp(22px, 3.5vw, 36px); font-weight: 300;
  color: var(--stone-deep); letter-spacing: clamp(2px, 1vw, 4px);
  margin-bottom: 8px;
}

.seat-formula strong {
  color: var(--accent-rust); font-weight: 600;
}

.seat-formula-en {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 16px; color: var(--stone-light);
  letter-spacing: 3px; font-style: italic;
}

.seat-roles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: clamp(20px, 3vw, 30px); margin-top: clamp(30px, 5vw, 50px);
}

.seat-role { text-align: center; }

.seat-role-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
}

.seat-role-icon.host { background: var(--water-ink); color: var(--paper); }
.seat-role-icon.expert { background: var(--accent-rust); color: white; }
.seat-role-icon.guest { background: white; color: var(--stone-mid); border: 2px solid var(--stone-pale); }

.seat-role-title {
  font-size: 16px; font-weight: 600;
  color: var(--stone-deep); margin-bottom: 6px;
  letter-spacing: 1px;
}

.seat-role-desc {
  font-size: 13px; color: var(--stone-mid); line-height: 1.8;
}

/* 活动流程 */
.flow-timeline {
  position: relative; padding-left: 30px;
  margin: 40px 0;
}

.flow-timeline::before {
  content: ''; position: absolute;
  left: 8px; top: 0; bottom: 0;
  width: 1px; background: var(--stone-pale);
}

.flow-item {
  position: relative; padding-bottom: 32px;
}

.flow-item:last-child { padding-bottom: 0; }

.flow-item::before {
  content: ''; position: absolute;
  left: -26px; top: 6px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--accent-rust);
}

.flow-time {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 15px; font-weight: 500;
  color: var(--accent-rust); letter-spacing: 1px;
}

.flow-title {
  font-size: 16px; font-weight: 600;
  color: var(--water-ink); margin: 4px 0 8px;
}

.flow-desc {
  font-size: 14px; color: var(--stone-mid); line-height: 1.8;
}

/* ==================== 前沿锋芒 ==================== */
.frontier {
  background: var(--stone-dark);
  color: var(--mist);
}

.frontier .section-number { color: rgba(168,164,156,0.15); }
.frontier .section-title { color: var(--paper); }
.frontier .section-eng { color: var(--stone-light); }
.frontier .section-line { background: var(--accent-gold); }
.frontier .lead { color: var(--mist); border-left-color: var(--accent-gold); }

.frontier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(20px, 3vw, 32px); margin-top: 40px;
}

.frontier-card {
  background: linear-gradient(145deg, rgba(58,56,51,0.5) 0%, rgba(46,44,40,0.7) 100%);
  border: 1px solid rgba(156,138,90,0.15);
  padding: clamp(28px, 4vw, 40px) clamp(24px, 3vw, 36px);
  position: relative;
  transition: all 0.3s;
}

.frontier-card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-4px);
}

.frontier-tag {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 11px; letter-spacing: 3px;
  color: var(--accent-gold) !important; text-transform: uppercase;
  margin-bottom: 16px;
}

.frontier .frontier-quote {
  font-size: clamp(14px, 2vw, 16px); font-weight: 300;
  color: var(--paper) !important; line-height: 2.1;
  letter-spacing: 1px; font-style: italic;
  margin-bottom: 20px;
}

.frontier .frontier-author {
  font-size: 13px; color: var(--stone-light) !important;
  letter-spacing: 2px;
  padding-top: 16px;
  border-top: 1px solid rgba(156,138,90,0.15);
}

.frontier-closing {
  text-align: center; margin-top: 50px;
  font-size: clamp(15px, 2vw, 18px);
  color: var(--accent-gold) !important;
  letter-spacing: 4px; font-weight: 300;
  font-style: italic;
}

/* ==================== 既往回响 ==================== */
.echo-card {
  background: var(--paper-warm);
  border: 1px solid var(--line-soft);
  padding: clamp(28px, 4vw, 44px) clamp(24px, 3vw, 40px);
  margin-bottom: clamp(24px, 3vw, 32px);
  position: relative;
  border-left: 3px solid var(--accent-moss);
}

.echo-header {
  display: flex; flex-wrap: wrap;
  align-items: baseline; gap: clamp(8px, 2vw, 16px);
  margin-bottom: 16px;
}

.echo-date {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 14px; color: var(--accent-rust);
  letter-spacing: 2px; font-weight: 500;
}

.echo-city {
  font-size: 13px; color: var(--stone-light);
  letter-spacing: 2px;
}

.echo-format {
  font-size: 12px; color: var(--stone-mid);
  letter-spacing: 1px;
  padding: 2px 12px; border: 1px solid var(--line);
  border-radius: 12px;
}

.echo-title {
  font-size: clamp(18px, 2.5vw, 22px); font-weight: 600;
  color: var(--stone-deep); letter-spacing: 2px;
  margin-bottom: 12px;
}

.echo-guests {
  font-size: 13px; color: var(--stone-mid);
  margin-bottom: 16px; letter-spacing: 1px;
}

.echo-guests strong { color: var(--water-ink); }

.echo-topic {
  font-size: 14px; color: var(--water-ink);
  margin-bottom: 16px; line-height: 1.9;
}

.echo-sparks {
  font-size: 14px; color: var(--stone-mid);
  line-height: 2; padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.echo-sparks strong { color: var(--accent-rust); }

/* ==================== 近期开场 ==================== */
.upcoming-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(20px, 3vw, 30px); margin-top: 40px;
}

.upcoming-card {
  background: white;
  border: 1px solid var(--line);
  padding: clamp(28px, 4vw, 40px) clamp(24px, 3vw, 36px);
  position: relative; overflow: hidden;
  transition: all 0.3s;
}

.upcoming-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(60,55,45,0.1);
}

.upcoming-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: var(--accent-rust);
}

.upcoming-date {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 16px;
}

.upcoming-month {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 36px; font-weight: 300;
  color: var(--accent-rust); line-height: 1;
}

.upcoming-city {
  font-size: 14px; color: var(--stone-mid);
  letter-spacing: 2px;
}

.upcoming-seats {
  font-size: 12px; padding: 3px 10px;
  border-radius: 10px; letter-spacing: 1px;
  margin-left: auto;
}

.upcoming-seats.available {
  background: rgba(95,107,79,0.15); color: var(--accent-moss);
}

.upcoming-seats.waiting {
  background: rgba(139,90,60,0.15); color: var(--accent-rust);
}

.upcoming-theme-tag {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 11px; letter-spacing: 3px;
  color: var(--accent-rust); text-transform: uppercase;
  margin-bottom: 8px;
}

.upcoming-title {
  font-size: clamp(16px, 2vw, 18px); font-weight: 600;
  color: var(--stone-deep); letter-spacing: 2px;
  margin-bottom: 12px;
}

.upcoming-guests {
  font-size: 13px; color: var(--stone-mid);
  margin-bottom: 12px;
}

.upcoming-format {
  font-size: 12px; color: var(--stone-light);
  letter-spacing: 1px; padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
}

/* ==================== 伴手礼 ==================== */
.keepsake-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(20px, 3vw, 30px); margin-top: 40px;
}

.keepsake-card {
  text-align: center;
  padding: clamp(24px, 3vw, 36px) clamp(16px, 2vw, 24px);
  background: var(--paper-warm);
  border: 1px solid var(--line-soft);
}

.keepsake-icon {
  width: 48px; height: 48px;
  margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center;
}

.keepsake-name {
  font-size: clamp(15px, 2vw, 17px); font-weight: 600;
  color: var(--stone-deep); letter-spacing: 2px;
  margin-bottom: 8px;
}

.keepsake-desc {
  font-size: 13px; color: var(--stone-mid); line-height: 1.8;
}

.keepsake-closing {
  text-align: center; margin-top: 40px;
  font-size: clamp(14px, 2vw, 16px);
  color: var(--water-ink); line-height: 2;
  letter-spacing: 2px; font-style: italic;
  max-width: 600px; margin-left: auto; margin-right: auto;
}

/* ==================== 体验 ==================== */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(20px, 3vw, 32px); margin-top: 40px;
}

.exp-card {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  padding: clamp(28px, 4vw, 44px) clamp(24px, 3vw, 36px);
  transition: all 0.3s;
}

.exp-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(60,55,45,0.08);
}

.exp-card-label {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 12px; letter-spacing: 3px;
  color: var(--accent-rust); text-transform: uppercase;
  margin-bottom: 8px;
}

.exp-card-title {
  font-size: clamp(17px, 2.2vw, 20px); font-weight: 600;
  color: var(--stone-deep); margin-bottom: 16px;
  letter-spacing: 2px;
}

.exp-card-text {
  font-size: 14px; color: var(--stone-mid); line-height: 2;
}

.exp-principles {
  margin-top: 50px;
  background: var(--paper-cool);
  border-left: 3px solid var(--accent-moss);
  padding: clamp(28px, 4vw, 40px) clamp(24px, 4vw, 50px);
}

.exp-principles h4 {
  font-size: 18px; font-weight: 600;
  color: var(--water-ink); margin-bottom: 24px;
  letter-spacing: 2px;
}

.exp-principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(16px, 2vw, 20px);
}

.exp-principle strong {
  color: var(--accent-rust); font-size: 14px; letter-spacing: 1px;
}

.exp-principle p {
  font-size: 13px; color: var(--stone-mid);
  margin-top: 4px; line-height: 1.8;
}

/* ==================== 会员体系 ==================== */
.membership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(20px, 3vw, 24px); margin: 40px 0;
}

.member-card {
  background: white;
  border: 1px solid var(--line);
  padding: clamp(28px, 4vw, 40px) clamp(24px, 3vw, 36px);
  position: relative; overflow: hidden;
  transition: all 0.3s;
}

.member-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(60,55,45,0.1);
}

.member-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 4px;
  background: var(--accent-gold);
}

.member-card.featured::before {
  background: var(--accent-rust); height: 6px;
}

.member-card-name {
  font-size: clamp(18px, 2.5vw, 22px); font-weight: 600;
  color: var(--stone-deep); letter-spacing: 3px;
  margin-bottom: 4px;
}

.member-card-en {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 12px; letter-spacing: 3px;
  color: var(--stone-light); margin-bottom: 20px;
  text-transform: uppercase;
}

.member-card-price {
  font-size: clamp(26px, 3.5vw, 32px);
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-weight: 500; color: var(--accent-rust);
  margin-bottom: 24px;
}

.member-card-price .unit {
  font-size: 14px; color: var(--stone-light);
  font-family: 'Noto Serif SC', serif;
}

.member-card ul { list-style: none; }

.member-card li {
  font-size: 13px; color: var(--stone-mid);
  padding: 8px 0 8px 20px;
  position: relative; line-height: 1.7;
  border-bottom: 1px dashed var(--line-soft);
}

.member-card li:last-child { border-bottom: none; }

.member-card li::before {
  content: '\25C2'; position: absolute;
  left: 0; color: var(--accent-rust); font-size: 11px; top: 10px;
}

.member-card .featured-tag {
  position: absolute; top: 16px; right: 16px;
  background: var(--accent-rust); color: white;
  font-size: 11px; padding: 4px 12px;
  letter-spacing: 1px; border-radius: 2px;
}

/* ==================== 预约 ==================== */
.reserve {
  background: linear-gradient(170deg, var(--stone-deep) 0%, var(--water-deep) 100%);
  color: var(--paper);
  text-align: center;
  padding: clamp(80px, 12vw, 140px) clamp(20px, 5vw, 40px);
  position: relative; overflow: hidden;
}

.reserve::before {
  content: ''; position: absolute;
  top: 50%; left: 50%;
  width: clamp(400px, 60vw, 700px); height: clamp(400px, 60vw, 700px);
  border-radius: 48% 52% 51% 49% / 55% 45% 55% 45%;
  background: radial-gradient(ellipse at center, rgba(156,138,90,0.08) 0%, transparent 70%);
  transform: translate(-50%,-50%);
  animation: ripple 12s ease-in-out infinite;
}

.reserve-content { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }

.reserve-stone {
  width: 80px; height: 56px;
  background: linear-gradient(135deg, #6B6862 0%, #3A3833 100%);
  border-radius: 42% 58% 55% 45% / 60% 40% 60% 40%;
  margin: 0 auto 40px;
}

.reserve-title {
  font-size: clamp(24px, 4vw, 36px); font-weight: 300;
  letter-spacing: clamp(3px, 1vw, 6px); margin-bottom: 16px;
}

.reserve-eng {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 16px; letter-spacing: 4px;
  color: var(--accent-gold); margin-bottom: 40px;
  font-style: italic;
}

.reserve-text {
  font-size: clamp(15px, 2.5vw, 18px); font-weight: 300;
  color: var(--mist); letter-spacing: 3px;
  line-height: 2.4; margin-bottom: 30px;
}

.reserve-text strong { color: var(--accent-gold); font-weight: 500; }

.reserve-note {
  font-size: 13px; color: var(--stone-light);
  line-height: 2; letter-spacing: 2px;
  margin-bottom: 40px;
}

.reserve-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: clamp(14px, 2vw, 18px) clamp(36px, 5vw, 56px);
  border: 1px solid var(--accent-gold);
  color: var(--accent-gold);
  font-size: clamp(14px, 2vw, 16px); letter-spacing: 4px;
  text-decoration: none;
  transition: all 0.4s;
  min-height: 48px; cursor: pointer;
}

.reserve-btn:hover {
  background: var(--accent-gold);
  color: var(--stone-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(156,138,90,0.3);
}

.reserve-info {
  margin-top: 50px;
  display: flex; justify-content: center;
  gap: clamp(30px, 6vw, 60px); flex-wrap: wrap;
}

.reserve-info-item { text-align: center; }

.reserve-info-item .label {
  font-family: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  font-size: 11px; letter-spacing: 3px;
  color: var(--stone-light); text-transform: uppercase;
  margin-bottom: 6px;
}

.reserve-info-item .value {
  font-size: 15px; color: var(--paper); letter-spacing: 2px;
}

/* ==================== 常见问答 ==================== */
.faq-list {
  margin-top: 40px;
  max-width: 800px;
}

.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 0;
}

.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; text-align: left;
  padding: clamp(18px, 3vw, 24px) 0;
  cursor: pointer;
  font-size: clamp(15px, 2vw, 17px); font-weight: 500;
  color: var(--stone-deep); letter-spacing: 1px;
  min-height: 48px;
  transition: color 0.3s;
  background: none; border: none;
  font-family: inherit;
}

.faq-question:hover { color: var(--accent-rust); }

.faq-question .q-icon {
  width: 20px; height: 20px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-left: 16px;
  transition: transform 0.3s;
}

.faq-question .q-icon::before {
  content: '+'; font-size: 24px; font-weight: 300;
  color: var(--accent-rust);
}

.faq-item.open .q-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: clamp(18px, 3vw, 24px);
}

.faq-answer p {
  font-size: 14px; color: var(--stone-mid);
  line-height: 2; margin: 0;
}

/* ==================== 页脚 ==================== */
.footer {
  background: #1E1C18;
  color: var(--stone-pale);
  text-align: center; padding: clamp(50px, 8vw, 80px) clamp(20px, 5vw, 40px) 50px;
}

.footer-stone {
  width: 50px; height: 36px;
  background: linear-gradient(135deg, #4A4742 0%, #2A2823 100%);
  border-radius: 42% 58% 55% 45% / 60% 40% 60% 40%;
  margin: 0 auto 30px;
}

.footer-brand {
  font-size: clamp(18px, 2.5vw, 20px); font-weight: 400;
  letter-spacing: clamp(4px, 1.5vw, 6px); margin-bottom: 12px;
  color: var(--paper);
}

.footer-tagline {
  font-size: clamp(13px, 1.8vw, 14px); letter-spacing: 3px;
  color: var(--stone-pale); margin-bottom: 30px;
  font-weight: 300;
}

.footer-divider {
  width: 60px; height: 1px;
  background: var(--stone-mid); opacity: 0.4;
  margin: 0 auto 30px;
}

.footer-contact {
  font-size: 13px; color: var(--stone-light);
  letter-spacing: 2px; line-height: 2.4;
  margin-bottom: 20px;
}

.footer-contact a {
  color: var(--stone-light); text-decoration: none;
  transition: color 0.3s;
}

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

.footer-cities {
  font-size: 13px; color: var(--stone-pale);
  letter-spacing: 3px; margin-bottom: 30px;
}

.footer-meta {
  font-size: 12px; color: var(--stone-light);
  letter-spacing: 2px; line-height: 2;
  opacity: 0.5;
}

/* ==================== 滚动渐入动画 ==================== */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 12px; letter-spacing: 1px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }

  .nav-links.mobile-open {
    display: flex;
    position: fixed;
    top: 56px; left: 0; right: 0;
    background: rgba(245,242,236,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px clamp(16px, 4vw, 40px);
    gap: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-links.mobile-open li { width: 100%; }

  .nav-links.mobile-open a {
    display: block;
    padding: 14px 0;
    font-size: 15px;
    border-bottom: 1px solid var(--line-soft);
  }

  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-btn-primary, .hero-btn-secondary { width: 100%; max-width: 300px; }

  .nav-cta { padding: 6px 14px; font-size: 12px; letter-spacing: 2px; }
  .nav-mobile-toggle { margin-left: 8px; }

  .reserve-info { flex-direction: column; gap: 24px; }

  .about-grid { grid-template-columns: 1fr; }
  .yin-yang-block { grid-template-columns: 1fr; text-align: center; }
  .yin-yang-visual { margin: 0 auto; }
  .yin-yang-text .yy-quote { text-align: left; }
}

@media (max-width: 480px) {
  .nav-brand-en { display: none; }
  .nav-brand-cn { font-size: 15px; letter-spacing: 2px; }
  .nav-cta { padding: 5px 10px; font-size: 11px; letter-spacing: 1px; }
  .nav-inner { padding: 12px clamp(12px, 3vw, 16px); }
  .hero-eyebrow { letter-spacing: 4px; }
  .section-eng { font-size: 12px; letter-spacing: 3px; }
  .whisper-card { flex: 0 0 88vw; }
  .hero-nav-cards { gap: 8px; }
  .hero-nav-card { padding: 8px 14px; font-size: 12px; }
}

@media (max-width: 360px) {
  .nav-cta { padding: 4px 8px; font-size: 10px; letter-spacing: 1px; }
  .nav-brand-cn { font-size: 14px; }
  .nav-stone-mark { width: 22px; height: 16px; }
}

/* ==================== 减少动效（无障碍） ==================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .fade-up { opacity: 1; transform: none; }
}