:root {
  --bg: #070604;
  --bg-2: #100e0a;
  --gold: #f0c14b;
  --gold-2: #fff1c2;
  --gold-deep: #a87412;
  --cream: #f6efe2;
  --muted: #b7a48a;
  --red: #c4312e;
  --line: rgba(240, 193, 75, 0.28);
  --serif: "Noto Serif SC", serif;
  --sans: "Noto Sans SC", "Outfit", sans-serif;
  --display: "Ma Shan Zheng", "Noto Serif SC", serif;
  --en: "Outfit", "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--cream);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--gold); color: #1a1206; }

.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  z-index: 50;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-2));
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  transition: background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(7, 6, 4, 0.82);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0.08em;
}
.brand img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--line);
}
.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.12em;
}
.nav-links a:hover { color: var(--gold-2); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
}
.menu-btn svg { width: 20px; height: 20px; }
.menu-btn .icon-close { display: none; }
.menu-btn[aria-expanded="true"] .icon-open { display: none; }
.menu-btn[aria-expanded="true"] .icon-close { display: block; margin: 0 auto; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.btn svg { width: 16px; height: 16px; flex: none; }
.btn-gold {
  background: linear-gradient(180deg, #ffe7a3, #e0aa2e 55%, #b8860b);
  color: #1a1206;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(224, 170, 46, 0.25);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(224, 170, 46, 0.4); }
.btn-line {
  background: transparent;
  color: var(--gold-2);
  border-color: var(--line);
}
.btn-line:hover { border-color: var(--gold); background: rgba(240, 193, 75, 0.08); }
.btn-lg { padding: 14px 22px; font-size: 15px; }

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  place-items: center;
  overflow: hidden;
  padding: 120px 20px 80px;
}
.dust, .lattice, .flare, .cubes { position: absolute; inset: 0; pointer-events: none; }
.dust { z-index: 2; width: 100%; height: 100%; }
.lattice {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='72' height='84' viewBox='0 0 72 84'><path d='M36 2 L70 22 L70 62 L36 82 L2 62 L2 22 Z' fill='none' stroke='%23d4a53a' stroke-opacity='0.22' stroke-width='1'/></svg>");
  background-size: 72px 84px;
  mask-image: radial-gradient(ellipse at 50% 45%, #000 20%, transparent 72%);
  animation: drift 28s linear infinite;
}
.flare {
  background:
    radial-gradient(ellipse at 50% 78%, rgba(255, 196, 60, 0.45), transparent 46%),
    radial-gradient(ellipse at 50% 42%, rgba(255, 210, 90, 0.16), transparent 40%);
}
.cubes { z-index: 1; }
.cube { position: absolute; color: rgba(240, 193, 75, 0.55); }
.c1 { width: 54px; top: 18%; left: 10%; animation: float 7s ease-in-out infinite; }
.c2 { width: 36px; top: 28%; right: 12%; animation: float 9s ease-in-out infinite 1s; }
.c3 { width: 28px; bottom: 22%; left: 16%; animation: float 8s ease-in-out infinite 0.4s; }
.c4 { width: 44px; bottom: 18%; right: 14%; animation: float 10s ease-in-out infinite 1.4s; }

.hero-inner {
  position: relative;
  z-index: 3;
  text-align: center;
  width: min(920px, 100%);
  min-width: 0;
  padding-inline: 4px;
}
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--gold);
  letter-spacing: 0.22em;
  font-family: var(--en);
  font-size: 12px;
  text-transform: uppercase;
}
.kicker svg { width: 8px; height: 8px; }
.mascot-wrap { position: relative; width: min(340px, 72vw); margin: 0 auto 8px; }
.rays {
  position: absolute;
  inset: -18%;
  background: conic-gradient(from 0deg, transparent, rgba(255, 214, 120, 0.45), transparent 18%, transparent 50%, rgba(255, 214, 120, 0.28), transparent 68%);
  border-radius: 50%;
  animation: spin 18s linear infinite;
  filter: blur(8px);
}
.mascot {
  position: relative;
  width: 100%;
  border-radius: 28px;
  animation: float 5.5s ease-in-out infinite;
  filter: drop-shadow(0 20px 40px rgba(240, 180, 40, 0.35));
}
.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(4.6rem, 12vw, 8.4rem);
  font-weight: 400;
  line-height: 0.95;
  background: linear-gradient(180deg, #fff6d4 10%, #f0c14b 48%, #8d6210 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 10px 24px rgba(240, 180, 40, 0.28));
}
.ticker {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  letter-spacing: 0.18em;
  color: var(--gold-2);
}
.lead { margin: 18px 0 0; font-size: 1.15rem; overflow-wrap: anywhere; }
.lead-en {
  margin: 4px 0 0;
  color: var(--muted);
  font-family: var(--en);
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}
.hero-cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  width: 100%;
}
.scroll-hint {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--gold);
  animation: bob 1.8s ease-in-out infinite;
}
.scroll-hint svg { width: 28px; height: 28px; }

.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: #0c0a07;
  padding: 14px 0;
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 28px;
  width: max-content;
  animation: ticker 28s linear infinite;
  font-family: var(--en);
  letter-spacing: 0.28em;
  color: var(--gold);
  font-size: 13px;
}
.marquee-track span:nth-child(4n + 1) { font-family: var(--serif); letter-spacing: 0.2em; }
.marquee i {
  width: 7px;
  height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
  display: inline-block;
  flex: none;
}

.section { padding: 96px 0; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.eyebrow {
  margin: 0 0 8px;
  font-family: var(--en);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  font-size: 12px;
}
h2 {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.25;
}
.section-head { margin-bottom: 36px; }
.prose { color: var(--muted); margin: 0 0 14px; max-width: 46ch; }

.story-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.facts { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 16px; }
.facts li { display: flex; gap: 14px; align-items: flex-start; }
.facts svg { width: 28px; height: 28px; color: var(--gold); flex: none; margin-top: 2px; }
.facts strong { display: block; font-weight: 700; }
.facts span { color: var(--muted); font-size: 14px; }

.banner-frame {
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 231, 163, 0.08), transparent 30%),
    #0c0a07;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), inset 0 0 0 1px rgba(255, 220, 140, 0.08);
  position: relative;
  overflow: hidden;
}
.banner-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 35%, rgba(255, 244, 210, 0.28) 50%, transparent 65%);
  transform: translateX(-120%);
  animation: shine 5.5s ease-in-out infinite;
  pointer-events: none;
}
.banner-frame img { width: 100%; border: 1px solid rgba(240, 193, 75, 0.2); }
.banner-frame figcaption {
  padding: 10px 6px 4px;
  letter-spacing: 0.22em;
  font-size: 12px;
  color: var(--gold);
  font-family: var(--serif);
}

.token { background: radial-gradient(ellipse at 50% 0%, rgba(240, 193, 75, 0.08), transparent 55%); }
.plaque {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #16130e, #0c0a07);
  padding: 28px 28px 22px;
  box-shadow: inset 0 1px 0 rgba(255, 231, 163, 0.2);
}
.plaque dl { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.plaque dl > div {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  padding: 16px 8px;
  border-bottom: 1px solid rgba(240, 193, 75, 0.14);
}
.plaque .full { grid-column: 1 / -1; }
.plaque dt { color: var(--muted); letter-spacing: 0.14em; font-size: 13px; }
.plaque dd { margin: 0; font-family: var(--serif); font-size: 1.15rem; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.plaque-note { margin: 16px 0 0; color: var(--muted); font-size: 14px; }
.plaque-note a { color: var(--gold-2); }
.seal {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 72px;
  color: var(--red);
  opacity: 0.9;
  transform: rotate(-12deg);
  animation: stamp 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.seal text {
  font-family: var(--serif);
  font-size: 32px;
  fill: currentColor;
}
.copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--gold-2);
  border-radius: 999px;
  padding: 4px 10px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
}
.copy svg { width: 14px; height: 14px; }

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.steps li {
  border: 1px solid var(--line);
  background: rgba(255, 220, 140, 0.03);
  padding: 22px 18px 20px;
  min-height: 220px;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.steps li:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
  background: rgba(240, 193, 75, 0.06);
}
.steps .num {
  font-family: var(--en);
  color: var(--gold);
  letter-spacing: 0.16em;
  font-size: 12px;
}
.steps svg { width: 28px; height: 28px; color: var(--gold-2); margin: 16px 0 12px; }
.steps h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 1.25rem; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }
.steps a { color: var(--gold-2); }

.chapters {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  position: relative;
}
.chapters::before {
  content: "";
  position: absolute;
  top: 42px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.chapters article {
  position: relative;
  padding-top: 8px;
}
.chapters span {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #0c0a07;
  font-family: var(--display);
  font-size: 32px;
  color: var(--gold-2);
}
.chapters h3 { margin: 0 0 8px; font-family: var(--serif); font-size: 1.35rem; }
.chapters p { margin: 0; color: var(--muted); }

.closer {
  position: relative;
  padding: 100px 0 90px;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% 80%, rgba(255, 196, 60, 0.28), transparent 50%),
    #070604;
  overflow: hidden;
}
.closer::before {
  content: "模因人生";
  position: absolute;
  inset: auto 0 8%;
  text-align: center;
  font-family: var(--display);
  font-size: clamp(4rem, 14vw, 10rem);
  color: transparent;
  -webkit-text-stroke: 1px rgba(240, 193, 75, 0.18);
  pointer-events: none;
  line-height: 1;
}
.closer-inner { position: relative; z-index: 1; }
.closer img {
  width: 120px;
  height: 120px;
  margin: 0 auto 12px;
  border-radius: 24px;
  filter: drop-shadow(0 12px 30px rgba(240, 180, 40, 0.35));
}
.closer p { color: var(--muted); margin-top: 0; }

.footer { padding: 28px 0 36px; border-top: 1px solid var(--line); }
.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}
.footer a { color: var(--gold-2); text-decoration: none; }
.disclaimer {
  width: min(1120px, calc(100% - 40px));
  margin: 12px auto 0;
  color: #7d6d5a;
  font-size: 12px;
  line-height: 1.6;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: #1a140c;
  color: var(--gold-2);
  border: 1px solid var(--line);
  padding: 10px 16px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: 0.3s ease;
  z-index: 60;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in { opacity: 1; transform: none; }
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes drift { to { background-position: 72px 84px; } }
@keyframes ticker { to { transform: translateX(-50%); } }
@keyframes shine { 0%, 55% { transform: translateX(-120%); } 100% { transform: translateX(120%); } }
@keyframes bob { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(6px); } }
@keyframes stamp { from { opacity: 0; transform: rotate(-20deg) scale(1.4); } to { opacity: 0.9; transform: rotate(-12deg) scale(1); } }

@media (max-width: 900px) {
  .menu-btn { display: grid; place-items: center; flex: none; }
  .nav { padding: 12px 14px; gap: 8px; }
  .brand { min-width: 0; }
  .brand span { font-size: 15px; }
  .nav-actions { flex: none; }
  .nav-actions .btn { padding: 10px; }
  .nav-actions .btn span { display: none; }
  .nav-links {
    position: fixed;
    inset: 68px 16px auto;
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    background: rgba(12, 10, 7, 0.96);
    border: 1px solid var(--line);
    backdrop-filter: blur(16px);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px; }
  .story-grid, .steps, .chapters, .plaque dl { grid-template-columns: 1fr; }
  .chapters::before { display: none; }
  .section { padding: 72px 0; }
  .hero { padding: 108px 16px 72px; }
  .hero h1 { font-size: clamp(2.7rem, 13vw, 4.4rem); padding-inline: 10px; }
  .lead-en { font-size: 0.95rem; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .mascot-wrap { width: min(280px, 68vw); }
  .lead, .lead-en { padding: 0 4px; }
  .plaque { padding-right: 78px; }
  .seal { width: 56px; top: 12px; right: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}