:root {
  --red: #e22b32;
  --red-deep: #9a1218;
  --red-ink: #5c0a0e;
  --gold: #f0c14b;
  --gold-2: #ffe7a3;
  --ink: #120c09;
  --ink-2: #1c130f;
  --ink-3: #2a1c16;
  --paper: #fff6e8;
  --cream: #f3ddbb;
  --muted: #c9ae90;
  --line: rgba(240, 193, 75, 0.22);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --font-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 22px;
  --header-h: 76px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  background: var(--ink);
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1200px 700px at 80% -10%, rgba(226, 43, 50, 0.28), transparent 55%),
    radial-gradient(900px 500px at -10% 20%, rgba(240, 193, 75, 0.12), transparent 50%),
    linear-gradient(180deg, #1a0f0c 0%, var(--ink) 38%, #0d0908 100%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

.wrap {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.25s ease, box-shadow 0.25s ease, backdrop-filter 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(18, 12, 9, 0.84);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.04em;
}

.brand img {
  width: 36px;
  height: 44px;
}

.nav-links {
  display: flex;
  gap: 28px;
  color: var(--cream);
  font-size: 15px;
}

.nav-links a {
  position: relative;
}

.nav-links a::after,
.cta-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 12px 22px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-gold {
  color: var(--red-ink);
  background: linear-gradient(180deg, #ffe7a3, var(--gold));
  box-shadow: 0 8px 24px rgba(240, 193, 75, 0.28);
  font-weight: 700;
}

.btn-gold.is-copied {
  background: linear-gradient(180deg, #d8f5c8, #8fd18a);
}

.btn-ghost {
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  color: var(--paper);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  margin: 0 auto;
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.nav-drawer {
  position: fixed;
  inset: var(--header-h) 0 0;
  background: rgba(18, 12, 9, 0.96);
  padding: 28px 24px;
  display: none;
  gap: 18px;
  align-content: start;
  z-index: 39;
}

.nav-drawer:not([hidden]) {
  display: grid;
}

.nav-drawer a {
  font-size: 22px;
  font-family: var(--font-display);
}

.hero {
  position: relative;
  padding: 28px 0 80px;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold-2);
  letter-spacing: 0.18em;
  font-size: 13px;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.15;
  margin: 0;
}

.hero h1 {
  font-size: clamp(64px, 10vw, 120px);
  margin: 12px 0 8px;
  letter-spacing: 0.08em;
  text-shadow: 0 8px 0 rgba(154, 18, 24, 0.35);
}

.slogan {
  font-size: clamp(22px, 3vw, 32px);
  color: var(--gold);
  margin: 0 0 18px;
}

.lead {
  max-width: 36em;
  color: var(--cream);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.tiny-note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.packet-stage {
  position: relative;
  height: 520px;
  perspective: 900px;
}

.packet {
  position: absolute;
  width: 210px;
  height: 300px;
  border-radius: 18px;
  background: linear-gradient(180deg, #ff5a57 0%, #c41e3a 48%, #8d1016 100%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.packet::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 84px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.18), transparent);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.packet::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 58px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle at 35% 30%, #fff1c2, #d4a017);
  box-shadow: 0 0 0 6px rgba(155, 18, 24, 0.35);
}

.packet b {
  position: absolute;
  left: 50%;
  bottom: 42px;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 42px;
  color: var(--paper);
  letter-spacing: 0.12em;
}

.p1 {
  left: 18%;
  top: 40px;
  transform: rotate(-16deg);
  animation: floaty 6s ease-in-out infinite;
}

.p2 {
  left: 42%;
  top: 88px;
  transform: rotate(8deg);
  animation: floaty 7s ease-in-out 0.4s infinite;
  filter: saturate(1.05);
}

.p3 {
  left: 58%;
  top: 18px;
  width: 180px;
  height: 260px;
  transform: rotate(18deg);
  animation: floaty 5.4s ease-in-out 0.8s infinite;
  opacity: 0.92;
}

.coin {
  position: absolute;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #fff3c4, #e2b03a 46%, #a87a12);
  box-shadow: inset 0 0 0 4px #f3d27a, 0 8px 16px rgba(0, 0, 0, 0.28);
  animation: spin-slow 12s linear infinite;
}

.c1 { right: 8%; top: 36px; }
.c2 { left: 6%; bottom: 90px; width: 34px; height: 34px; }
.c3 { right: 18%; bottom: 48px; width: 28px; height: 28px; }

@keyframes floaty {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -14px; }
}

@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

.ticker {
  border-block: 1px solid var(--line);
  background: rgba(226, 43, 50, 0.08);
  overflow: hidden;
  padding: 14px 0;
}

.ticker-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: marquee 28s linear infinite;
  color: var(--gold-2);
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

.section {
  padding: 88px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 36px;
}

.section-head p {
  max-width: 28em;
  color: var(--muted);
  margin: 0;
}

.eyebrow {
  color: var(--gold);
  letter-spacing: 0.2em;
  font-size: 12px;
  margin-bottom: 8px;
}

h2 {
  font-size: clamp(32px, 5vw, 48px);
}

.ticket-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.ticket {
  position: relative;
  padding: 28px 24px 32px;
  background: var(--paper);
  color: var(--ink);
  border-radius: 6px 22px 22px 6px;
  box-shadow: var(--shadow);
}

.ticket::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 8px;
  background: repeating-linear-gradient(180deg, var(--red) 0 10px, transparent 10px 16px);
}

.ticket h3 {
  font-size: 28px;
  margin: 8px 0 10px;
}

.ticket p {
  margin: 0;
  color: #5c4636;
}

.stamp {
  position: absolute;
  right: 16px;
  top: 16px;
  width: 64px;
  height: 64px;
  border: 2px solid var(--red);
  color: var(--red);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  transform: rotate(12deg);
  opacity: 0.8;
  font-size: 14px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.step {
  padding: 32px 28px;
  background: rgba(255, 246, 232, 0.03);
}

.step + .step {
  border-left: 1px solid var(--line);
}

.step-index {
  font-family: var(--font-display);
  color: var(--gold);
  font-size: 42px;
}

.step h3 {
  font-size: 26px;
  margin: 4px 0 8px;
}

.step p {
  margin: 0;
  color: var(--cream);
}

.notice {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  padding: 36px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(226, 43, 50, 0.16), rgba(18, 12, 9, 0.4)),
    var(--ink-2);
  border: 1px solid var(--line);
}

.notice ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--cream);
}

.seal-card {
  display: grid;
  place-items: center;
  text-align: center;
  min-height: 220px;
  border: 1px dashed var(--gold);
  border-radius: 18px;
  color: var(--gold-2);
}

.seal-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 42px;
  color: var(--gold);
}

.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: 56px 40px;
  background: linear-gradient(135deg, #c41e3a, #7a0d12 70%);
  box-shadow: var(--shadow);
}

.cta-band h2 {
  font-size: clamp(36px, 6vw, 56px);
  max-width: 10em;
}

.cta-band p {
  color: var(--gold-2);
  max-width: 32em;
}

.cta-band .hero-actions {
  margin-top: 22px;
}

.site-footer {
  padding: 48px 0 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 28px;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--paper);
}

.health-advice {
  margin: 0;
  max-width: 46em;
}

.footer-links {
  display: grid;
  gap: 8px;
}

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

.icp {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 246, 232, 0.08);
}

.icp a {
  color: var(--cream);
}

.icp a:hover {
  color: var(--gold);
}

.page-hero {
  padding: 48px 0 12px;
}

.page-hero h1 {
  font-size: clamp(40px, 7vw, 72px);
}

.prose {
  max-width: 760px;
  padding: 12px 0 80px;
  color: var(--cream);
}

.prose h2 {
  font-size: 28px;
  margin: 36px 0 12px;
  color: var(--paper);
}

.prose h3 {
  font-size: 20px;
  margin: 24px 0 8px;
}

.prose p,
.prose li {
  color: var(--cream);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  padding-bottom: 80px;
}

.info-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 246, 232, 0.03);
}

.info-card dt {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.12em;
}

.info-card dd {
  margin: 0 0 18px;
  font-size: 18px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .nav-links,
  .header-actions .btn {
    display: none;
  }

  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .hero-grid,
  .ticket-grid,
  .steps,
  .notice,
  .footer-grid,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .step + .step {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .packet-stage {
    height: 380px;
  }

  .hero {
    min-height: auto;
    padding-top: 12px;
  }

  .section {
    padding: 64px 0;
  }

  .cta-band,
  .notice {
    padding: 28px 22px;
  }
}

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