/* ================================================================
   LUXURY / EDITORIAL — 南三岛·樟木村
   Design System: Warm Alabaster · Charcoal · Metallic Gold
   ================================================================ */

/* ── 1. Design Tokens ─────────────────────────────────────────── */
:root {
  --c-bg:         #F9F8F6;
  --c-fg:         #1A1A1A;
  --c-muted-bg:   #EBE5DE;
  --c-muted-fg:   #6C6863;
  --c-gold:       #D4AF37;
  --c-dark:       #1A1A1A;
  --c-white:      #FFFFFF;

  --font-serif:   'Playfair Display', Georgia, serif;
  --font-sans:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --r:            0px;

  --t-fast:       300ms ease-out;
  --t-mid:        500ms cubic-bezier(0.25,0.46,0.45,0.94);
  --t-slow:       700ms cubic-bezier(0.25,0.46,0.45,0.94);
  --t-image:      1500ms cubic-bezier(0.25,0.46,0.45,0.94);

  --shadow-sm:    0 2px 8px rgba(0,0,0,0.04);
  --shadow-md:    0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg:    0 8px 32px rgba(0,0,0,0.12);
  --shadow-btn:   0 4px 16px rgba(0,0,0,0.15);
  --shadow-btn-h: 0 8px 24px rgba(0,0,0,0.25);

  --container:    1600px;
  --pad-x:        clamp(1.5rem, 5vw, 6rem);
  --section-y:    clamp(5rem, 10vw, 8rem);
}

/* ── 2. Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.625;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── 3. Noise Texture Overlay ─────────────────────────────────── */
.noise-overlay {
  position: fixed; inset: 0; z-index: 100;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 128px 128px;
}

/* ── 4. Vertical Grid Lines ───────────────────────────────────── */
.grid-lines {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
  display: flex; justify-content: space-between;
  padding: 0 var(--pad-x);
  max-width: var(--container); margin: 0 auto;
  left: 50%; transform: translateX(-50%);
  right: auto; width: 100%;
}
.grid-line {
  width: 1px;
  background: rgba(26,26,26,0.07);
  height: 100vh;
  position: sticky; top: 0;
}

/* ── 5. Page Loader ───────────────────────────────────────────── */
.page-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--c-fg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.8s ease-out, visibility 0.8s ease-out;
}
.page-loader.hidden,
.page-loader.loaded { opacity: 0; visibility: hidden; pointer-events: none; }

/* Canvas rings layer */
.loader-rings-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.loader-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}
.loader-mark {
  display: block;
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin: 0 auto;
  animation: loaderPulse 2s ease-in-out infinite;
}
.loader-text {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-muted-fg);
  margin-top: 1rem;
}

@keyframes loaderPulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}

/* ── 6. Containers ────────────────────────────────────────────── */
.container       { max-width: 1100px; margin: 0 auto; padding: 0 var(--pad-x); }
.container--wide { max-width: var(--container); margin: 0 auto; padding: 0 var(--pad-x); }

/* ── 7. Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  padding: 0 var(--pad-x);
  height: 72px;
  display: flex; align-items: center;
  transition: background var(--t-slow), border-color var(--t-slow);
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: rgba(249,248,246,0.95);
  backdrop-filter: blur(8px);
  border-bottom-color: rgba(26,26,26,0.12);
}
.nav-container {
  max-width: var(--container); margin: 0 auto; width: 100%;
  display: flex; align-items: center; gap: 2rem;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--c-white);
  transition: color var(--t-mid);
  flex-shrink: 0;
}
.navbar.scrolled .nav-logo { color: var(--c-fg); }

.logo-glyph {
  width: 36px; height: 36px;
  background: var(--c-white);
  color: var(--c-fg);
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--t-mid), color var(--t-mid);
  flex-shrink: 0;
}
.navbar.scrolled .logo-glyph {
  background: var(--c-fg);
  color: var(--c-white);
}
.logo-glyph--dark { background: var(--c-fg); color: var(--c-white); }

/* ── Seal Logo ────────────────────────────────────────────────── */
.seal-logo {
  width: 40px; height: 40px;
  flex-shrink: 0;
  display: block;
  transition: transform var(--t-mid), filter var(--t-mid);
  filter: drop-shadow(0 2px 6px rgba(189,26,34,0.35));
}
.nav-logo:hover .seal-logo {
  transform: rotate(-4deg) scale(1.1);
  filter: drop-shadow(0 4px 12px rgba(189,26,34,0.55));
}

.nav-menu {
  display: flex; gap: 0; margin-left: auto;
}
.nav-link {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  padding: 0 1rem;
  height: 72px;
  display: flex; align-items: center;
  transition: color var(--t-mid);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute; bottom: 0; left: 1rem; right: 1rem;
  height: 1px;
  background: var(--c-gold);
  transform: scaleX(0);
  transition: transform var(--t-mid);
  transform-origin: left;
}
.nav-link:hover { color: var(--c-white); }
.nav-link:hover::after { transform: scaleX(1); }
.navbar.scrolled .nav-link { color: var(--c-muted-fg); }
.navbar.scrolled .nav-link:hover { color: var(--c-fg); }
.nav-link.active { color: var(--c-white); }
.nav-link.active::after { transform: scaleX(1); }
.navbar.scrolled .nav-link.active { color: var(--c-fg); }

.nav-cta { margin-left: 1.5rem; flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  width: 28px; cursor: pointer;
  margin-left: auto;
}
.nav-toggle span {
  display: block; width: 100%; height: 1px;
  background: var(--c-white);
  transition: background var(--t-mid);
}
.navbar.scrolled .nav-toggle span { background: var(--c-fg); }

/* ── 8. Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px;
  padding: 0 2.5rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: var(--r);
  position: relative;
  overflow: hidden;
  transition: var(--t-mid);
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-white);
  color: var(--c-fg);
  box-shadow: var(--shadow-btn);
}
.btn-primary::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--c-gold);
  transform: translateX(-100%);
  transition: transform 500ms cubic-bezier(0.25,0.46,0.45,0.94);
  z-index: 0;
}
.btn-primary:hover::before { transform: translateX(0); }
.btn-primary span, .btn-primary > * { position: relative; z-index: 1; }
.btn-primary:hover { box-shadow: var(--shadow-btn-h); color: var(--c-white); }

.btn-secondary {
  background: transparent;
  color: var(--c-white);
  border: 1px solid rgba(255,255,255,0.4);
}
.btn-secondary:hover {
  background: var(--c-white);
  color: var(--c-fg);
  border-color: var(--c-white);
}

/* Dark-surface button variant */
.btn-dark {
  background: var(--c-fg);
  color: var(--c-white);
  border: none;
  box-shadow: var(--shadow-btn);
}
.btn-dark::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--c-gold);
  transform: translateX(-100%);
  transition: transform 500ms cubic-bezier(0.25,0.46,0.45,0.94);
  z-index: 0;
}
.btn-dark:hover::before { transform: translateX(0); }
.btn-dark:hover { box-shadow: var(--shadow-btn-h); }

/* ── 9. Typography Primitives ─────────────────────────────────── */
.eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-muted-fg);
  margin-bottom: 1.25rem;
}
.eyebrow--light { color: rgba(249,248,246,0.45); }

.display-lg {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--c-fg);
  margin-bottom: 1.5rem;
}
.display-lg--light { color: var(--c-bg); }
.display-lg em { font-style: italic; color: var(--c-gold); }

.body-text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-muted-fg);
  margin-bottom: 1.25rem;
  max-width: 56ch;
}
.body-text--light { color: rgba(235,229,222,0.7); }

.subhead {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--c-muted-fg);
  margin-top: 0.75rem;
}
.subhead--light { color: rgba(235,229,222,0.5); }

.section-header {
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-header.centered {
  text-align: center;
  max-width: 100%;
}

/* Drop cap */
.drop-cap::first-letter {
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 0.8;
  float: left;
  margin-right: 0.2em;
  margin-top: 0.05em;
  color: var(--c-fg);
  font-weight: 400;
}

/* ── 10. Chips ────────────────────────────────────────────────── */
.chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }
.chip {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(26,26,26,0.2);
  color: var(--c-muted-fg);
  border-radius: var(--r);
  transition: border-color var(--t-mid), color var(--t-mid);
}
.chip:hover { border-color: var(--c-gold); color: var(--c-fg); }
.chip--inv {
  border-color: rgba(249,248,246,0.2);
  color: rgba(249,248,246,0.5);
}
.chip--inv:hover { border-color: var(--c-gold); color: var(--c-bg); }
.chip--sm { font-size: 0.6rem; padding: 0.3rem 0.7rem; }

/* ── 11. Reveal Animations ────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 800ms ease-out, transform 800ms ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── 12. Section Base ─────────────────────────────────────────── */
.section {
  padding: var(--section-y) 0;
  position: relative;
}
.section--white  { background: var(--c-bg); }
.section--lime   { background: var(--c-muted-bg); }
.section--cream  { background: var(--c-bg); border-top: 1px solid rgba(26,26,26,0.08); }
.section--mint   { background: var(--c-dark); }
.section--navy   { background: var(--c-dark); }
.section--coral  { background: var(--c-muted-bg); border-top: 1px solid rgba(26,26,26,0.08); }

/* ── 13. Hero ─────────────────────────────────────────────────── */

/* Outer section = scroll track (200 vh gives room for tree animation) */
.hero {
  height: 200vh;
  position: relative;
}

/* Inner sticky frame = the visible viewport-tall panel */
.hero-sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: flex-end;
  padding: 0 var(--pad-x) clamp(4rem, 8vw, 7rem);
  overflow: hidden;
  border-bottom: 1px solid rgba(249,248,246,0.08);
  background: #000;
}

/* Canvas / Video fills the sticky panel behind all content */
.hero-tree-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
}

/* Gradient overlay — hides video watermark at bottom */
.hero-sticky::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 25%;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}
.hero-video {
  /* Portrait video (1080×1920) full-bleed background */
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transform: none;
}

.hero-content {
  position: relative; z-index: 2;
  max-width: var(--container); margin: 0 auto; width: 100%;
}

.hero-eyebrow {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(249,248,246,0.35);
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 1.5rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block; width: 2.5rem; height: 1px;
  background: var(--c-gold);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(5rem, 15vw, 13rem);
  font-weight: 400;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--c-bg);
  margin-bottom: 2rem;
}
.hero-title em {
  font-style: italic;
  color: var(--c-gold);
}

.hero-sub {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(249,248,246,0.3);
  margin-bottom: 1.25rem;
}

.hero-desc {
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(235,229,220,0.75);
  max-width: 42ch;
  margin-bottom: 2.5rem;
  text-shadow: 0 1px 6px rgba(0,0,0,0.6), 0 0 20px rgba(0,0,0,0.3);
  letter-spacing: 0.12em;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-scroll-hint {
  position: absolute; right: var(--pad-x); bottom: 3rem;
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
  z-index: 2;
}
.hero-scroll-hint span {
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(249,248,246,0.25);
  writing-mode: vertical-rl;
}
.scroll-mark {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, rgba(212,175,55,0.6), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
  50%       { opacity: 1;   transform: scaleY(1); }
}

/* ── 14. Marquee Strip ────────────────────────────────────────── */
.marquee-strip {
  background: var(--c-dark);
  border-top: 1px solid rgba(249,248,246,0.06);
  border-bottom: 1px solid rgba(249,248,246,0.06);
  padding: 0.9rem 0;
  overflow: hidden;
}
.marquee-track {
  display: flex; gap: 0; white-space: nowrap;
  animation: marqueeScroll 30s linear infinite;
  width: max-content;
}
.marquee-track span {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(249,248,246,0.25);
  padding: 0 1.25rem;
}
.marquee-track .sep { color: rgba(212,175,55,0.5); padding: 0 0.25rem; }
@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── 15. Tree 3D Section ──────────────────────────────────────── */
.tree3d-section {
  background: var(--c-dark);
  border-top: 1px solid rgba(249,248,246,0.06);
}
.tree3d-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: center;
}
.tree3d-text { padding-right: 2rem; }
.tree3d-canvas-wrap {
  position: relative;
  aspect-ratio: 1;
  box-shadow: var(--shadow-lg), inset 0 0 0 1px rgba(249,248,246,0.06);
  background: rgba(255,255,255,0.02);
}
#treeCanvas { width: 100% !important; height: 100% !important; display: block; }

.tree3d-hint {
  display: flex; align-items: center; gap: 0.6rem;
  margin-top: 1.5rem;
}
.tree3d-hint-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-gold);
  animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
  0%, 100% { opacity: 0.4; transform: scale(0.8); }
  50%       { opacity: 1;   transform: scale(1.2); }
}
.tree3d-hint span:last-child {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(249,248,246,0.3);
}

.tree3d-label {
  position: absolute; bottom: 1.25rem; left: 1.25rem;
  display: flex; flex-direction: column; gap: 0.2rem;
}
.tree3d-label-name {
  font-family: var(--font-sans);
  font-style: italic;
  font-size: 0.7rem;
  color: rgba(249,248,246,0.25);
}
.tree3d-label-cn {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(212,175,55,0.5);
}

/* ── 16. About Section ────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}
.about-text { padding-right: 2rem; }

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(26,26,26,0.1);
  border: 1px solid rgba(26,26,26,0.1);
}
.stat-card {
  background: var(--c-bg);
  padding: 2rem 1.75rem;
  transition: background var(--t-slow);
}
.stat-card:hover { background: var(--c-muted-bg); }
.stat-eyebrow {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--c-muted-fg);
  margin-bottom: 0.75rem;
}
.stat-value { display: flex; align-items: baseline; gap: 0.35rem; }
.stat-number {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 400;
  color: var(--c-fg);
  line-height: 1;
}
.stat-unit {
  font-size: 0.85rem;
  color: var(--c-muted-fg);
  font-weight: 400;
}

/* ── 17. Highlights Section ───────────────────────────────────── */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid rgba(26,26,26,0.1);
  border-bottom: none;
}
.highlight-card {
  border-right: 1px solid rgba(26,26,26,0.1);
  border-bottom: 1px solid rgba(26,26,26,0.1);
  padding: 2.5rem 2rem;
  transition: background var(--t-slow);
  position: relative;
  overflow: hidden;
}
.highlight-card:last-child { border-right: none; }
.highlight-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--c-gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-mid);
}
.highlight-card:hover { background: rgba(26,26,26,0.02); }
.highlight-card:hover::before { transform: scaleX(1); }

.hc-number {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--c-gold);
  margin-bottom: 1.5rem;
  opacity: 0.7;
}
.hc-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--c-fg);
  margin-bottom: 0.85rem;
  line-height: 1.2;
}
.hc-desc {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--c-muted-fg);
  margin-bottom: 1.5rem;
}
.hc-link {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-fg);
  transition: color var(--t-fast);
  position: relative;
  padding-bottom: 2px;
}
.hc-link::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px; background: var(--c-gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-mid);
}
.hc-link:hover { color: var(--c-gold); }
.hc-link:hover::after { transform: scaleX(1); }

/* ── 18. Gallery Section ──────────────────────────────────────── */
.gallery-filter {
  display: flex; gap: 0; margin-bottom: 2.5rem;
  border: 1px solid rgba(249,248,246,0.12);
  width: fit-content;
}
.filter-btn {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.7rem 1.4rem;
  color: rgba(249,248,246,0.35);
  border-right: 1px solid rgba(249,248,246,0.12);
  transition: color var(--t-fast), background var(--t-fast);
  border-radius: var(--r);
}
.filter-btn:last-child { border-right: none; }
.filter-btn:hover  { color: var(--c-bg); background: rgba(249,248,246,0.06); }
.filter-btn.active { color: var(--c-dark); background: var(--c-bg); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1px;
  background: rgba(249,248,246,0.06);
}
.gallery-item { overflow: hidden; }
.gallery-item.g-tall { grid-row: span 2; }
.gallery-item.g-wide { grid-column: span 2; }

.g-img {
  width: 100%; height: 100%; min-height: 280px;
  position: relative; overflow: hidden;
  cursor: pointer;
  filter: grayscale(100%) brightness(0.7);
  transition: filter var(--t-image), transform var(--t-image);
}
.g-img:hover { filter: grayscale(0%) brightness(1); transform: scale(1.03); }

.g-tall .g-img { min-height: 560px; }
.g-wide .g-img { min-height: 280px; }

.g-info {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 1.5rem 1.25rem;
  background: linear-gradient(transparent, rgba(26,26,26,0.75));
  display: flex; flex-direction: column; gap: 0.25rem;
  transform: translateY(8px); opacity: 0;
  transition: transform var(--t-mid), opacity var(--t-mid);
}
.g-img:hover .g-info { transform: translateY(0); opacity: 1; }
.g-title {
  font-family: var(--font-serif);
  font-size: 1rem; font-weight: 400;
  color: var(--c-bg); line-height: 1.3;
}
.g-cat {
  font-size: 0.6rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--c-gold);
}

.gallery-item.hidden { display: none; }

/* ── 19. Culture Section ──────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 2rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 1px; background: rgba(26,26,26,0.12);
}
.timeline-item {
  position: relative; padding: 0 0 3rem 3rem;
  display: grid; grid-template-columns: 80px 1fr;
  gap: 0 2rem;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: -4px; top: 0.4rem;
  width: 9px; height: 9px;
  border: 1px solid var(--c-muted-fg);
  background: var(--c-muted-bg);
  transition: border-color var(--t-mid), background var(--t-mid);
}
.timeline-item:hover .timeline-dot {
  border-color: var(--c-gold);
  background: var(--c-gold);
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--c-gold);
  padding-top: 0.2rem;
  opacity: 0.8;
}
.timeline-body h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--c-fg);
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.timeline-body p {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-muted-fg);
}

.culture-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(26,26,26,0.08);
}
.culture-card {
  background: var(--c-muted-bg);
  transition: background var(--t-slow);
  border-top: 2px solid transparent;
  overflow: hidden;
}
.culture-card:hover { background: var(--c-bg); border-top-color: var(--c-gold); }

.cc-img {
  height: 220px;
  filter: grayscale(80%);
  transition: filter var(--t-image), transform var(--t-image);
}
.culture-card:hover .cc-img { filter: grayscale(0%); transform: scale(1.03); }
.cc-img--red   { background: linear-gradient(135deg,#2a0a02,#5a1a08 60%,#a84030); }
.cc-img--green { background: linear-gradient(135deg,#0a1e06,#1a4a0e 60%,#4a8c28); }
.cc-img--blue  { background: linear-gradient(135deg,#030f1e,#0a2a5c 50%,#2060b8); }

.cc-body { padding: 1.75rem 1.5rem; }
.cc-tag {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 0.75rem;
}
.cc-body h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--c-fg);
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.cc-body p { font-size: 0.88rem; line-height: 1.75; color: var(--c-muted-fg); }

/* ── 20. Quote Band ───────────────────────────────────────────── */
.quote-band {
  background: var(--c-dark);
  border-top: 1px solid rgba(249,248,246,0.06);
  border-bottom: 1px solid rgba(249,248,246,0.06);
  padding: clamp(4rem, 8vw, 6rem) 0;
  text-align: center;
}
.quote-text {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.3;
  color: var(--c-bg);
  max-width: 800px;
  margin: 0 auto 1.5rem;
  quotes: none;
  border: none;
}
.quote-author {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(235,229,222,0.3);
  display: flex; align-items: center; justify-content: center; gap: 1rem;
}
.quote-author::before, .quote-author::after {
  content: ''; display: inline-block;
  width: 2rem; height: 1px; background: var(--c-gold); opacity: 0.5;
}

/* ── 21. Temple Section ──────────────────────────────────────── */
.temple-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}
.temple-text { padding-right: 2rem; }
.temple-viewer-wrap {
  position: relative;
}
.temple-vid-box {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: 0.5rem;
  border: 1px solid rgba(26,26,26,0.1);
  background: var(--c-muted-bg);
}
.temple-vid-box video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.temple-label {
  position: absolute; bottom: 1rem; left: 1rem;
}
model-viewer {
  border: 1px solid rgba(26,26,26,0.08);
  --progress-bar-color: var(--c-gold);
  --progress-bar-height: 2px;
}
.temple-poster {
  width: 100%; height: 100%;
  background: var(--c-muted-bg);
  display: flex; align-items: center; justify-content: center;
}
.temple-poster-inner { text-align: center; }
.temple-poster-glyph {
  display: block;
  font-family: var(--font-serif);
  font-size: 5rem;
  color: var(--c-muted-fg);
  opacity: 0.25;
}
.temple-poster-hint {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-muted-fg);
  margin-top: 1rem;
}
.temple-progress {
  width: 100%; height: 2px;
  background: rgba(26,26,26,0.08);
  position: absolute; bottom: 0; left: 0;
}
.temple-progress-bar {
  height: 100%;
  background: var(--c-gold);
  transition: width 0.3s ease;
}
.temple-controls-hint {
  display: flex; align-items: center; gap: 0.6rem;
  margin-top: 1.5rem;
}
.temple-placeholder {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(212,175,55,0.06);
  border: 1px dashed rgba(212,175,55,0.35);
  font-size: 0.8rem;
  color: var(--c-muted-fg);
  line-height: 1.6;
}
.temple-placeholder code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: rgba(26,26,26,0.06);
  padding: 0.1em 0.35em;
  color: var(--c-fg);
}

@media (max-width: 900px) {
  .temple-layout { grid-template-columns: 1fr; }
  .temple-text { padding-right: 0; }
}

/* ── 22. Food Section ─────────────────────────────────────────── */
.food-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(26,26,26,0.08);
}
.food-card {
  background: var(--c-bg);
  transition: background var(--t-slow);
  overflow: hidden;
  border-top: 2px solid transparent;
}
.food-card:hover { border-top-color: var(--c-gold); }

.fc-img {
  height: 200px;
  position: relative;
  overflow: hidden;
  filter: grayscale(100%);
  transition: filter var(--t-image), transform var(--t-image);
}
.food-card:hover .fc-img { filter: grayscale(0%); transform: scale(1.04); }

.fc-img--oyster  { background: linear-gradient(160deg,#1a0c00,#4a1800 50%,#8c3010); }
.fc-img--crab    { background: linear-gradient(160deg,#100416,#2a0c2a 50%,#6a2060); }
.fc-img--shrimp  { background: linear-gradient(160deg,#001a10,#003a20 50%,#0a7038); }
.fc-img--chicken { background: linear-gradient(160deg,#1a1000,#3a2800 50%,#806020); }

.fc-icon {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80px; height: 80px;
  filter: brightness(0) invert(1);
  opacity: 0.25;
  pointer-events: none;
  z-index: 1;
}
.fc-badge {
  position: absolute; top: 1rem; right: 1rem;
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  background: var(--c-fg);
  color: var(--c-bg);
  border-radius: var(--r);
  z-index: 2;
}

.fc-body { padding: 1.5rem 1.25rem; }
.fc-body h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--c-fg);
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.fc-body p { font-size: 0.85rem; line-height: 1.7; color: var(--c-muted-fg); margin-bottom: 1rem; }
.fc-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* ── 22. Tourism Section ──────────────────────────────────────── */
.section--mint .eyebrow { color: rgba(212,175,55,0.6); }
.section--mint .display-lg { color: var(--c-bg); }
.section--mint .subhead { color: rgba(235,229,222,0.4); }

.tourism-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(249,248,246,0.06);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.tourism-card {
  background: rgba(249,248,246,0.03);
  padding: 2.5rem 2rem;
  border-top: 1px solid rgba(249,248,246,0.08);
  transition: background var(--t-slow), border-top-color var(--t-mid);
}
.tourism-card:hover {
  background: rgba(212,175,55,0.04);
  border-top-color: rgba(212,175,55,0.5);
}
.tourism-card .eyebrow { color: rgba(212,175,55,0.6); margin-bottom: 0.5rem; }
.tourism-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--c-bg);
  margin-bottom: 1.25rem;
  line-height: 1.2;
}
.info-list { display: flex; flex-direction: column; gap: 0.65rem; }
.info-list li {
  font-size: 0.88rem;
  line-height: 1.65;
  color: rgba(235,229,222,0.5);
  padding-left: 1.1rem;
  position: relative;
}
.info-list li::before {
  content: '—'; position: absolute; left: 0;
  color: var(--c-gold); opacity: 0.5;
}

.tourism-cta {
  text-align: center;
  padding: clamp(3rem, 6vw, 5rem) 0 0;
  border-top: 1px solid rgba(249,248,246,0.06);
}
.tourism-cta .display-lg { color: var(--c-bg); margin-bottom: 1rem; }
.tourism-cta .subhead { color: rgba(235,229,222,0.4); margin-bottom: 2.5rem; }

/* ── 23. Footer ───────────────────────────────────────────────── */
.footer {
  background: var(--c-bg);
  border-top: 1px solid rgba(26,26,26,0.08);
  position: relative;
  z-index: 1;
}
.footer-inner {
  padding: clamp(3rem, 6vw, 4.5rem) var(--pad-x);
  max-width: var(--container);
  margin: 0 auto;
  text-align: center;
}

/* 品牌块 */
.footer-brand { margin-bottom: 2.75rem; }
.footer-logo-wrap {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.footer-brand-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
}
.footer-village-name {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-fg);
}
.footer-village-sub {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: rgba(26,26,26,0.35);
}
.footer-tagline {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-size: 0.97rem;
  color: var(--c-muted-fg);
  line-height: 1.7;
  max-width: 460px;
  margin: 0 auto;
}

/* 水平导航 */
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.25rem 0.5rem;
  padding: 1.75rem 0;
  margin-bottom: 1.75rem;
  border-top: 1px solid rgba(212,175,55,0.2);
  border-bottom: 1px solid rgba(212,175,55,0.2);
}
.footer-nav a {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--c-muted-fg);
  transition: color var(--t-fast);
  padding: 0.15rem 0.2rem;
}
.footer-nav a:hover { color: var(--c-gold); }
.footer-nav-dot {
  color: var(--c-gold);
  opacity: 0.4;
  font-size: 0.7rem;
  pointer-events: none;
}

/* 地理信息 */
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem 2.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  color: rgba(26,26,26,0.35);
  margin-bottom: 2.25rem;
}

/* 版权 */
.footer-bottom {
  border-top: 1px solid rgba(26,26,26,0.07);
  padding-top: 1.5rem;
}
.footer-bottom p {
  font-size: 0.63rem;
  letter-spacing: 0.14em;
  color: rgba(26,26,26,0.28);
}

/* ── 24. Back to Top ──────────────────────────────────────────── */
/* ── Music Toggle ────────────────────────────────────────────── */
.music-toggle {
  position: fixed; bottom: 5.5rem; right: 2rem; z-index: 400;
  width: 44px; height: 44px;
  background: var(--c-fg);
  color: var(--c-bg);
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r);
  box-shadow: var(--shadow-md);
  opacity: 0.7;
  transition: opacity 0.6s ease, transform 0.6s ease, background var(--t-mid);
}
.music-toggle:hover { background: var(--c-gold); opacity: 1; }
.music-toggle.playing { opacity: 0; pointer-events: none; transform: translateY(8px); }

.back-to-top {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 400;
  width: 44px; height: 44px;
  background: var(--c-fg);
  color: var(--c-bg);
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r);
  box-shadow: var(--shadow-md);
  opacity: 0; pointer-events: none;
  transition: opacity var(--t-mid), transform var(--t-mid), background var(--t-mid);
  transform: translateY(8px);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: var(--c-gold); }

/* ── 25. Responsive ───────────────────────────────────────────── */
@media (max-width: 1100px) {
  .highlights-grid { grid-template-columns: repeat(2, 1fr); }
  .food-grid       { grid-template-columns: repeat(2, 1fr); }
  /* footer is now single-column centered */
}

@media (max-width: 900px) {
  .about-grid      { grid-template-columns: 1fr; }
  .about-text      { padding-right: 0; }
  .tree3d-layout   { grid-template-columns: 1fr; }
  .tree3d-text     { padding-right: 0; }
  .tree3d-canvas-wrap { aspect-ratio: 4/3; }
  .culture-cards   { grid-template-columns: 1fr; }
  .tourism-grid    { grid-template-columns: 1fr; }
  .gallery-grid    { grid-template-columns: repeat(2, 1fr); }
  .gallery-item.g-tall { grid-row: auto; }
  .gallery-item.g-wide { grid-column: auto; }
}

@media (max-width: 640px) {
  :root { --section-y: 3.5rem; }
  .nav-menu, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav-menu.open {
    display: flex; flex-direction: column;
    position: fixed; inset: 72px 0 0 0;
    background: var(--c-dark);
    padding: 2rem var(--pad-x);
    gap: 0;
    z-index: 499;
  }
  .nav-menu.open .nav-link {
    height: 52px; font-size: 0.75rem; padding: 0;
    border-bottom: 1px solid rgba(249,248,246,0.06);
    color: rgba(249,248,246,0.5);
  }
  .hero-title { font-size: clamp(4rem, 20vw, 7rem); }
  .highlights-grid { grid-template-columns: 1fr; }
  .highlight-card:last-child { border-right: 1px solid rgba(26,26,26,0.1); }
  .food-grid    { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .stats-grid   { grid-template-columns: 1fr; }
  .footer-meta  { flex-direction: column; gap: 0.5rem; }
  .footer-brand-text { align-items: center; }
  .footer-logo-wrap  { flex-direction: column; text-align: center; }
  .grid-lines   { display: none; }
  .filter-btn   { padding: 0.6rem 0.85rem; }
  .timeline-item { grid-template-columns: 60px 1fr; gap: 0 1rem; }
  .hero         { height: 150vh; }
  .loader-text  { letter-spacing: 0.1em; }
}

@media (max-width: 480px) {
  .drop-cap::first-letter  { font-size: 3rem; }
  .migration-timeline      { padding-left: 0.75rem; }
  .mig-item                { grid-template-columns: 64px 1fr; gap: 0 0.75rem; padding: 0 0 1.75rem 2rem; }
  .mig-era                 { font-size: 0.58rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ================================================================
   NEW SECTIONS — Migration · Mazu · Genealogy · Gongpo · Calendar
   ================================================================ */

/* ── Migration Section ────────────────────────────────────────── */
.migration-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: clamp(3rem, 6vw, 5rem);
  align-items: start;
}
.migration-timeline {
  position: relative;
  padding-left: 2rem;
}
.migration-timeline::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 1px;
  background: rgba(212,175,55,0.2);
}
.mig-item {
  position: relative;
  padding: 0 0 2.5rem 3rem;
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 0 1.5rem;
  align-items: start;
}
.mig-item:last-child { padding-bottom: 0; }
.mig-dot {
  position: absolute; left: -4.5px; top: 0.35rem;
  width: 9px; height: 9px;
  border: 1px solid rgba(212,175,55,0.5);
  background: var(--c-dark);
  transition: border-color var(--t-mid), background var(--t-mid);
}
.mig-item:hover .mig-dot { border-color: var(--c-gold); background: var(--c-gold); }
.mig-era {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--c-gold);
  opacity: 0.75;
  padding-top: 0.15rem;
  white-space: nowrap;
}
.mig-body h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem; font-weight: 400;
  color: var(--c-bg); margin-bottom: 0.5rem; line-height: 1.3;
}
.mig-body p { font-size: 0.88rem; line-height: 1.75; color: rgba(235,229,222,0.5); }

.migration-map-card {
  background: rgba(249,248,246,0.03);
  border: 1px solid rgba(212,175,55,0.15);
  padding: 1.75rem;
  margin-bottom: 1.25rem;
}
.mmap-header { margin-bottom: 1.25rem; }
.mmap-eyebrow {
  font-size: 0.6rem; letter-spacing: 0.25em; text-transform: uppercase;
  color: rgba(212,175,55,0.55); display: block; margin-bottom: 0.4rem;
}
.mmap-title { font-family: var(--font-serif); font-size: 1rem; font-weight: 400; color: var(--c-bg); }
.mmap-visual { width: 100%; aspect-ratio: 3 / 4; display: flex; align-items: center; justify-content: center; }
.mmap-svg { width: 100%; height: 100%; }
.mmap-footer { margin-top: 0.75rem; border-top: 1px solid rgba(249,248,246,0.06); padding-top: 0.75rem; }
.mmap-note { font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(249,248,246,0.2); }

.migration-fact-row {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: rgba(212,175,55,0.1);
}
.mig-fact { background: var(--c-dark); padding: 1.25rem 1rem; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.mig-fact-num {
  display: flex; align-items: center; justify-content: center;
  height: 2rem;
  font-family: var(--font-serif); font-size: 1.6rem;
  font-weight: 400; color: var(--c-gold); margin-bottom: 0.25rem; line-height: 1;
}
.mig-fact-label {
  font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: rgba(249,248,246,0.3); display: block;
}
.mig-fact-num--sm { font-size: 1rem; letter-spacing: 0.05em; }

@media (max-width: 900px) { .migration-layout { grid-template-columns: 1fr; } }

/* ── Lineage Chain ────────────────────────────────────────────── */
.lineage-chain {
  display: flex; flex-direction: column; gap: 0;
  padding: 0.5rem 0 0.25rem;
}
.lineage-node {
  display: grid;
  grid-template-columns: 52px 1fr;
  grid-template-rows: auto auto;
  column-gap: 0.75rem;
  row-gap: 0.1rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid rgba(212,175,55,0.12);
  border-left: 2px solid rgba(212,175,55,0.2);
  background: rgba(249,248,246,0.02);
  transition: border-left-color var(--t-mid), background var(--t-mid);
}
.lineage-node:hover { border-left-color: var(--c-gold); background: rgba(212,175,55,0.04); }
.lineage-node.ln-key { border-left-color: rgba(212,175,55,0.45); background: rgba(212,175,55,0.05); }
.lineage-node.ln-nansan {
  border-left-color: var(--c-gold); background: rgba(212,175,55,0.08);
  border-color: rgba(212,175,55,0.3);
}
.ln-gen {
  grid-row: 1 / 3; align-self: center;
  font-family: var(--font-mono); font-size: 0.52rem;
  letter-spacing: 0.05em; color: rgba(212,175,55,0.45);
  text-align: right; line-height: 1.4; white-space: nowrap;
}
.ln-nansan .ln-gen { color: rgba(212,175,55,0.75); }
.ln-key .ln-gen    { color: rgba(212,175,55,0.6); }
.ln-main { display: flex; align-items: baseline; gap: 0.5rem; flex-wrap: wrap; }
.ln-name {
  font-family: var(--font-serif); font-size: 0.95rem; font-weight: 400;
  color: var(--c-bg); line-height: 1.2;
}
.ln-nansan .ln-name { color: var(--c-gold); }
.ln-date {
  font-family: var(--font-mono); font-size: 0.58rem;
  color: rgba(212,175,55,0.5); letter-spacing: 0.08em;
}
.ln-note {
  grid-column: 2; font-size: 0.72rem;
  color: rgba(235,229,222,0.35); line-height: 1.4;
}
.lineage-connector {
  display: flex; align-items: center; justify-content: center;
  height: 1.4rem; color: rgba(212,175,55,0.3);
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em;
  position: relative;
}
.lineage-connector::before,
.lineage-connector::after {
  content: ''; position: absolute; left: 50%; width: 1px;
  background: rgba(212,175,55,0.15);
}
.lineage-connector::before { top: 0; height: 0.3rem; }
.lineage-connector::after  { bottom: 0; height: 0.3rem; }

/* ── Mazu Cards ───────────────────────────────────────────────── */
.mazu-intro-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: rgba(26,26,26,0.08);
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.mazu-card {
  background: var(--c-bg); padding: 2rem 1.75rem;
  border-top: 2px solid transparent;
  transition: border-top-color var(--t-mid), background var(--t-slow);
}
.mazu-card:hover { border-top-color: var(--c-gold); background: var(--c-muted-bg); }
.mazu-icon {
  display: block; font-family: var(--font-serif); font-size: 2.5rem;
  color: var(--c-muted-fg); opacity: 0.25; margin-bottom: 1rem; line-height: 1;
}
.mazu-card h3 {
  font-family: var(--font-serif); font-size: 1.15rem; font-weight: 400;
  color: var(--c-fg); margin-bottom: 0.65rem; line-height: 1.2;
}
.mazu-card p { font-size: 0.88rem; line-height: 1.75; color: var(--c-muted-fg); }
@media (max-width: 768px) { .mazu-intro-grid { grid-template-columns: 1fr; } }

/* ── Genealogy Viewer ─────────────────────────────────────────── */
.genealogy-wrapper { position: relative; }
.genealogy-controls {
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.g-ctrl-btn {
  width: 36px; height: 36px;
  background: var(--c-fg); color: var(--c-bg);
  font-size: 1.1rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r);
  transition: background var(--t-fast), color var(--t-fast);
  cursor: pointer; border: 1px solid rgba(26,26,26,0.15);
  user-select: none;
}
.g-ctrl-btn:hover { background: var(--c-gold); color: var(--c-white); }
.g-ctrl-reset { background: var(--c-muted-bg); color: var(--c-fg); }
.g-ctrl-fullscreen { background: var(--c-muted-bg); color: var(--c-fg); font-size: 0.95rem; }
.g-ctrl-sep {
  width: 1px; height: 22px; background: rgba(26,26,26,0.15); margin: 0 0.25rem;
}
.g-zoom-label {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.08em;
  color: var(--c-muted-fg); min-width: 3ch; text-align: center;
}
.g-ctrl-hint {
  font-size: 0.6rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--c-muted-fg); margin-left: 0.25rem;
}
.genealogy-viewport {
  width: 100%; height: clamp(480px, 72vh, 820px);
  overflow: hidden;
  border: 1px solid rgba(26,26,26,0.12);
  background: var(--c-muted-bg);
  cursor: grab; position: relative; user-select: none;
}
.genealogy-viewport:active { cursor: grabbing; }
/* Fullscreen mode */
.genealogy-viewport:fullscreen        { height: 100vh !important; width: 100vw !important; border: none; }
.genealogy-viewport:-webkit-full-screen { height: 100vh !important; width: 100vw !important; border: none; }
.genealogy-inner {
  transform-origin: 0 0; display: inline-block;
  transition: none; will-change: transform;
}
.genealogy-svg {
  display: block;
  width: auto !important;
  max-width: none; height: auto;
  pointer-events: none; user-select: none; -webkit-user-drag: none;
}
.genealogy-footer {
  margin-top: 0.75rem;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: 0.5rem;
}
.genealogy-note {
  font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-muted-fg);
}
.genealogy-note--kbd { opacity: 0.6; }
@media (max-width: 480px) { .genealogy-note--kbd { display: none; } }

/* ── Gongpo Section ───────────────────────────────────────────── */
.gongpo-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem); align-items: start;
}
.gongpo-text { padding-right: 1rem; }
.gongpo-cards {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: rgba(212,175,55,0.12);
}
.gp-card {
  background: rgba(249,248,246,0.03); padding: 1.75rem 1.5rem;
  border-top: 2px solid transparent;
  transition: background var(--t-slow), border-top-color var(--t-mid);
}
.gp-card:hover { background: rgba(212,175,55,0.05); border-top-color: var(--c-gold); }
.gp-num {
  font-family: var(--font-mono); font-size: 0.62rem;
  letter-spacing: 0.2em; color: var(--c-gold); margin-bottom: 0.75rem; opacity: 0.7;
}
.gp-card h3 {
  font-family: var(--font-serif); font-size: 1rem; font-weight: 400;
  color: var(--c-bg); margin-bottom: 0.5rem; line-height: 1.2;
}
.gp-card p { font-size: 0.85rem; line-height: 1.7; color: rgba(235,229,222,0.45); }
@media (max-width: 900px) { .gongpo-layout { grid-template-columns: 1fr; } .gongpo-text { padding-right: 0; } }
@media (max-width: 600px) { .gongpo-cards { grid-template-columns: 1fr; } }

/* ── Year Calendar ────────────────────────────────────────────── */
.calendar-block {
  margin-bottom: clamp(3rem, 6vw, 5rem);
  padding: clamp(2rem, 4vw, 3.5rem);
  background: var(--c-muted-bg);
  border: 1px solid rgba(26,26,26,0.06);
}
.calendar-header { margin-bottom: 2rem; }
.calendar-grid {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 1px; background: rgba(26,26,26,0.08);
}
.cal-item {
  background: var(--c-bg); padding: 1.25rem 1rem;
  display: flex; flex-direction: column; gap: 0.3rem;
  transition: background var(--t-slow);
  border-top: 2px solid transparent; position: relative;
}
.cal-item:hover { background: var(--c-white); border-top-color: var(--c-gold); }
.cal-month { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.2em; color: var(--c-muted-fg); }
.cal-event { font-family: var(--font-serif); font-size: 0.95rem; font-weight: 400; color: var(--c-fg); line-height: 1.2; }
.cal-detail { font-size: 0.72rem; line-height: 1.5; color: var(--c-muted-fg); margin-top: 0.15rem; }
.cal-badge {
  display: inline-block; font-size: 0.55rem; font-weight: 500;
  letter-spacing: 0.15em; text-transform: uppercase;
  padding: 0.2rem 0.55rem; border-radius: var(--r);
  margin-top: 0.5rem; width: fit-content;
}
.cal-badge--gold  { background: rgba(212,175,55,0.15); color: var(--c-gold); }
.cal-badge--red   { background: rgba(180,30,30,0.1);   color: #b01c1c; }
.cal-badge--green { background: rgba(40,120,40,0.1);   color: #287828; }
.cal-badge--muted { background: rgba(26,26,26,0.05);   color: var(--c-muted-fg); }
@media (max-width: 1100px) { .calendar-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 768px)  { .calendar-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px)  { .calendar-grid { grid-template-columns: repeat(2, 1fr); } }

/* ── Shenyou Section ──────────────────────────────────────────── */
.shenyou-block {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 5vw, 5rem); align-items: start;
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid rgba(26,26,26,0.08);
}
.shenyou-cards {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1px; background: rgba(26,26,26,0.08);
}
.sy-card {
  background: var(--c-bg); padding: 1.5rem 1.25rem;
  transition: background var(--t-slow);
  border-top: 2px solid transparent;
}
.sy-card:hover { background: var(--c-muted-bg); border-top-color: var(--c-gold); }
.sy-icon { display: block; width: 40px; height: 40px; margin-bottom: 0.75rem; }
.sy-card h4 {
  font-family: var(--font-serif); font-size: 1rem; font-weight: 400;
  color: var(--c-fg); margin-bottom: 0.5rem; line-height: 1.2;
}
.sy-card p { font-size: 0.83rem; line-height: 1.7; color: var(--c-muted-fg); }
@media (max-width: 900px) { .shenyou-block { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .shenyou-cards { grid-template-columns: 1fr; } }

/* ── Responsive 3-col Grid Utility ───────────────────────────── */
.grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
}
.grid-3col--dark { background: rgba(26,26,26,0.08); }
.grid-3col--gold { background: rgba(212,175,55,0.15); }
@media (max-width: 768px) { .grid-3col { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 479px) { .grid-3col { grid-template-columns: 1fr; } }