@font-face {
  font-family: "PuHui";
  src: url("assets/fonts/PuHui-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "PuHui";
  src: url("assets/fonts/PuHui-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "AlibabaSansLocal";
  src: url("assets/fonts/AlibabaSans-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #080807;
  --surface: #10100e;
  --surface-strong: #16150f;
  --ink: #f5f3ec;
  --muted: #aaa69b;
  --muted-strong: #cbc6ba;
  --line: rgba(245, 243, 236, 0.15);
  --line-soft: rgba(245, 243, 236, 0.08);
  --gold: #cfad60;
  --gold-light: #ead28f;
  --gold-deep: #967337;
  --gold-ink: #171208;
  --max: 1240px;
  --radius: 4px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: "PuHui", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--gold);
  color: var(--gold-ink);
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
  font: inherit;
}

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

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin-top: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  min-height: 72px;
  padding: 0 max(28px, calc((100% - var(--max)) / 2));
  grid-template-columns: auto 1fr auto;
  align-items: center;
  border-bottom: 1px solid rgba(207, 173, 96, 0.26);
  background: rgba(8, 8, 7, 0.9);
  backdrop-filter: blur(18px) saturate(120%);
  -webkit-backdrop-filter: blur(18px) saturate(120%);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  white-space: nowrap;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
}

.brand-en {
  color: var(--gold);
  font-family: "AlibabaSansLocal", "PuHui", sans-serif;
  font-size: 10px;
  line-height: 1;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 34px;
  color: var(--muted);
  font-size: 14px;
}

.site-nav a,
.header-cta {
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.header-cta {
  display: inline-flex;
  min-height: 40px;
  padding: 0 17px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14px;
  white-space: nowrap;
}

.header-cta:hover,
.header-cta:focus-visible {
  border-color: var(--gold);
  background: rgba(207, 173, 96, 0.08);
  color: var(--gold-light);
}

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  min-height: calc(100svh - 132px);
  overflow: hidden;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  z-index: -3;
  object-fit: cover;
  object-position: 65% 48%;
  filter: saturate(0.7) contrast(1.08) brightness(0.86);
  transform: scale(1.012);
}

.hero-shade {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(8, 8, 7, 0.99) 0%, rgba(8, 8, 7, 0.92) 35%, rgba(8, 8, 7, 0.46) 63%, rgba(8, 8, 7, 0.12) 100%),
    linear-gradient(0deg, rgba(8, 8, 7, 0.82) 0%, rgba(8, 8, 7, 0) 42%);
}

.hero-inner {
  display: flex;
  width: min(var(--max), calc(100% - 72px));
  margin: 0 auto;
  padding: 64px 0 72px;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  animation: hero-enter 900ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.hero-role {
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  color: var(--gold-light);
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  margin-bottom: 6px;
  font-size: 108px;
  font-weight: 700;
  line-height: 0.98;
}

.hero-lead {
  margin-bottom: 0;
  color: var(--muted-strong);
  font-size: 38px;
  line-height: 1.22;
}

.hero-lead strong {
  color: var(--ink);
  font-weight: 700;
}

.hero-summary {
  max-width: 650px;
  margin: 26px 0 0;
  color: #d7d2c6;
  font-size: 18px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 22px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 700;
  white-space: nowrap;
  transition: transform 180ms ease, color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.button-primary {
  background: linear-gradient(135deg, var(--gold-light), var(--gold) 62%, #ad8742);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
  color: var(--gold-ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: linear-gradient(135deg, #f3dda0, var(--gold-light) 62%, var(--gold));
}

.button-ghost {
  border-color: rgba(245, 243, 236, 0.34);
  background: rgba(8, 8, 7, 0.58);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold-light);
}

.button:active,
.header-cta:active,
.copy-button:active {
  transform: translateY(1px);
}

.belief-strip {
  display: flex;
  min-height: 74px;
  padding: 14px max(28px, calc((100% - var(--max)) / 2));
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.belief-strip p {
  margin: 0;
  color: var(--muted-strong);
  font-size: 15px;
}

.belief-route {
  display: flex;
  align-items: center;
  gap: 0;
  color: var(--gold-light);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.belief-route span + span::before {
  display: inline-block;
  width: 36px;
  height: 1px;
  margin: 0 14px 4px;
  background: rgba(207, 173, 96, 0.5);
  content: "";
}

.section {
  width: min(var(--max), calc(100% - 72px));
  margin: 0 auto;
  padding: 144px 0;
}

.section[id],
.path-section[id],
.planet-section[id] {
  scroll-margin-top: 86px;
}

.section-number {
  color: rgba(245, 243, 236, 0.2);
  font-family: "AlibabaSansLocal", "PuHui", sans-serif;
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
}

.section-number-gold {
  color: var(--gold-deep);
}

.about-layout {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 62px;
  align-items: start;
}

.about-heading h2,
.path-inner h2,
.section-title-block h2,
.planet-heading h2,
.join-copy h2 {
  margin-bottom: 0;
  font-size: 64px;
  line-height: 1.12;
}

.about-content {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
  gap: 80px;
  align-items: start;
}

.about-heading {
  max-width: 670px;
}

.about-heading .lead-copy {
  margin: 34px 0 24px;
  color: var(--ink);
  font-size: 24px;
  line-height: 1.65;
}

.about-body {
  padding-top: 12px;
  border-top: 1px solid rgba(207, 173, 96, 0.44);
}

.about-body p {
  margin-bottom: 18px;
  color: var(--muted);
}

.qr-figure figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.fact-row {
  display: grid;
  margin: 96px 0 0 144px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fact-row > div {
  min-width: 0;
  padding: 30px 30px 30px 0;
}

.fact-row > div + div {
  padding-left: 30px;
  border-left: 1px solid var(--line);
}

.fact-row dt {
  margin-bottom: 6px;
  color: var(--gold-light);
  font-size: 20px;
  font-weight: 700;
}

.fact-row dt strong,
.price-row strong {
  font-family: "AlibabaSansLocal", "PuHui", sans-serif;
  font-variant-numeric: tabular-nums;
}

.fact-row dt strong {
  font-size: 42px;
  line-height: 1;
}

.fact-row dd {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.path-section {
  border-top: 1px solid rgba(207, 173, 96, 0.24);
  border-bottom: 1px solid rgba(207, 173, 96, 0.24);
  background: var(--surface-strong);
}

.path-inner {
  padding-top: 136px;
  padding-bottom: 136px;
}

.path-inner h2 {
  margin: 30px 0 18px;
  font-size: 28px;
}

.path-statement {
  max-width: 980px;
  margin: 0;
  color: var(--ink);
  font-size: 74px;
  font-weight: 700;
  line-height: 1.12;
}

.path-list {
  display: grid;
  margin: 88px 0 0;
  padding: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 84px;
  list-style: none;
}

.path-list li {
  display: grid;
  min-height: 210px;
  padding: 32px 0 38px;
  grid-template-columns: 56px 1fr;
  grid-template-rows: auto 1fr;
  column-gap: 24px;
  border-top: 1px solid var(--line);
}

.path-list li > span {
  grid-row: 1 / 3;
  color: var(--gold);
  font-family: "AlibabaSansLocal", "PuHui", sans-serif;
  font-size: 18px;
}

.path-list h3 {
  margin-bottom: 12px;
  font-size: 27px;
  line-height: 1.3;
}

.path-list p {
  max-width: 430px;
  margin-bottom: 0;
  color: var(--muted);
}

.system-principle {
  display: grid;
  max-width: 980px;
  margin: 68px 0 0 auto;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(207, 173, 96, 0.38);
  border-bottom: 1px solid rgba(207, 173, 96, 0.22);
}

.system-principle > div {
  min-width: 0;
  padding: 24px 28px 28px;
}

.system-principle > div + div {
  border-left: 1px solid var(--line);
}

.system-principle strong,
.system-principle span {
  display: block;
}

.system-principle strong {
  margin-bottom: 7px;
  color: var(--gold-light);
  font-size: 19px;
}

.system-principle span {
  color: var(--muted-strong);
  font-size: 15px;
}

.topics-section {
  display: grid;
  grid-template-columns: 82px 1fr;
  column-gap: 62px;
}

.section-title-block {
  max-width: 780px;
}

.section-title-block p {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 19px;
}

.topic-grid {
  display: grid;
  margin: 82px 0 0;
  grid-column: 2 / -1;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 78px;
}

.topic {
  display: grid;
  min-height: 190px;
  padding: 30px 0 36px;
  grid-template-columns: 48px 1fr;
  gap: 24px;
  border-top: 1px solid var(--line);
}

.topic > span {
  color: var(--gold-deep);
  font-family: "AlibabaSansLocal", "PuHui", sans-serif;
  font-size: 16px;
}

.topic h3 {
  margin-bottom: 10px;
  font-size: 26px;
  line-height: 1.35;
}

.topic p {
  max-width: 430px;
  margin-bottom: 0;
  color: var(--muted);
}

.planet-section {
  border-top: 1px solid rgba(207, 173, 96, 0.26);
  border-bottom: 1px solid rgba(207, 173, 96, 0.26);
  background: var(--surface);
}

.planet-inner {
  padding-top: 136px;
  padding-bottom: 136px;
}

.planet-heading {
  max-width: 900px;
  margin-top: 30px;
}

.planet-heading > p:first-child {
  margin-bottom: 12px;
  color: var(--gold);
  font-size: 16px;
  font-weight: 700;
}

.planet-heading h2 {
  font-size: 82px;
}

.planet-intro {
  max-width: 820px;
  margin: 28px 0 0;
}

.planet-intro p {
  margin-bottom: 0;
  color: var(--muted-strong);
  font-size: 20px;
  line-height: 1.75;
}

.planet-intro p:first-child {
  color: var(--ink);
  font-weight: 700;
}

.planet-intro p + p {
  margin-top: 10px;
}

.content-map {
  margin: 72px 0 0;
  overflow: hidden;
  border: 1px solid rgba(207, 173, 96, 0.34);
  border-radius: var(--radius);
  background: #0b0b09;
  box-shadow: 0 30px 86px rgba(0, 0, 0, 0.35);
}

.content-map-bar {
  display: flex;
  min-height: 74px;
  padding: 18px 24px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(207, 173, 96, 0.035);
}

.content-map-bar > div {
  display: flex;
  min-width: 0;
  align-items: baseline;
  gap: 14px;
}

.content-map-bar strong {
  color: var(--ink);
  font-size: 17px;
}

.content-map-bar > div > span {
  color: var(--muted);
  font-family: "AlibabaSansLocal", "PuHui", sans-serif;
  font-size: 10px;
}

.content-map-status {
  flex: 0 0 auto;
  color: var(--gold-light);
  font-size: 12px;
  font-weight: 700;
}

.content-map-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
}

.content-map-core {
  display: flex;
  min-height: 440px;
  padding: 54px 52px;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(207, 173, 96, 0.08), transparent 48%),
    #0d0d0b;
}

.content-map-core > p {
  margin-bottom: 18px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
}

.content-map-core h3 {
  max-width: 620px;
  margin-bottom: 0;
  font-size: 44px;
  line-height: 1.28;
}

.content-map-formats {
  display: flex;
  margin-top: 42px;
  align-items: center;
  flex-wrap: wrap;
  color: var(--muted-strong);
  font-size: 14px;
}

.content-map-formats span + span::before {
  display: inline-block;
  width: 1px;
  height: 12px;
  margin: 0 14px -1px;
  background: var(--line);
  content: "";
}

.content-map-modules {
  padding: 22px 36px;
}

.content-map-modules article {
  display: grid;
  min-height: 98px;
  padding: 18px 0;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  border-top: 1px solid var(--line);
}

.content-map-modules article:first-child {
  border-top: 0;
}

.content-map-modules article > span {
  color: var(--gold-deep);
  font-family: "AlibabaSansLocal", "PuHui", sans-serif;
  font-size: 14px;
}

.content-map-modules h4 {
  color: var(--ink);
  font-size: 22px;
  line-height: 1.3;
}

.content-map-modules p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.product-facts {
  display: grid;
  margin-top: 72px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.product-facts > div {
  min-width: 0;
  padding: 34px 34px 38px 0;
}

.product-facts > div + div {
  padding-left: 34px;
  border-left: 1px solid var(--line);
}

.product-facts span {
  display: block;
  margin-bottom: 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
}

.product-facts strong {
  display: block;
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.4;
}

.product-facts p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
}

.product-boundary {
  display: flex;
  margin-top: 34px;
  align-items: center;
  gap: 0;
  color: var(--muted-strong);
  font-size: 14px;
}

.product-boundary span + span::before {
  display: inline-block;
  width: 1px;
  height: 14px;
  margin: 0 18px -2px;
  background: var(--line);
  content: "";
}

.join-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 110px;
  align-items: center;
}

.join-copy {
  max-width: 760px;
}

.join-note {
  margin-bottom: 20px;
  color: var(--gold);
  font-size: 16px;
  font-weight: 700;
}

.join-copy h2 {
  font-size: 68px;
}

.join-description {
  max-width: 680px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.join-description p {
  margin-bottom: 0;
}

.join-description p + p {
  margin-top: 8px;
}

.price-row {
  display: flex;
  margin-top: 42px;
  align-items: baseline;
  gap: 12px;
}

.price-row > span {
  color: var(--gold-light);
  font-size: 28px;
}

.price-row strong {
  color: var(--gold-light);
  font-size: 96px;
  line-height: 0.95;
}

.price-row small {
  color: var(--muted-strong);
  font-size: 14px;
}

.wechat-row {
  display: flex;
  margin-top: 32px;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.wechat-row > span {
  color: var(--muted-strong);
}

.wechat-row b {
  color: var(--ink);
}

.copy-button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--gold-deep);
  border-radius: var(--radius);
  background: rgba(207, 173, 96, 0.07);
  color: var(--gold-light);
  cursor: pointer;
  font-weight: 700;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.copy-button:hover,
.copy-button:focus-visible {
  border-color: var(--gold-light);
  background: rgba(207, 173, 96, 0.12);
}

.copy-status {
  min-height: 26px;
  margin: 10px 0 0;
  color: var(--gold-light);
  font-size: 14px;
}

.qr-figure {
  margin: 0;
  padding: 12px;
  border: 1px solid rgba(207, 173, 96, 0.34);
  background: #0c0c0a;
}

.qr-figure img {
  width: 100%;
  height: auto;
}

.qr-figure figcaption {
  padding: 0 4px 2px;
  text-align: center;
}

.site-footer {
  display: flex;
  min-height: 116px;
  padding: 28px max(28px, calc((100% - var(--max)) / 2));
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.site-footer > div {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.site-footer strong {
  color: var(--ink);
  font-size: 17px;
}

.site-footer p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes hero-enter {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .site-nav {
    gap: 22px;
  }

  .hero h1 {
    font-size: 88px;
  }

  .hero-lead {
    font-size: 34px;
  }

  .about-layout {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 42px;
  }

  .about-content {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 52px;
  }

  .about-heading h2,
  .section-title-block h2,
  .join-copy h2 {
    font-size: 54px;
  }

  .fact-row {
    margin-left: 106px;
  }

  .path-statement {
    font-size: 64px;
  }

  .path-list {
    gap: 0 54px;
  }

  .join-section {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 68px;
  }
}

@media (max-width: 900px) {
  .site-header {
    min-height: 66px;
    padding-right: 24px;
    padding-left: 24px;
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .hero {
    min-height: calc(100svh - 118px);
  }

  .hero-media {
    object-position: 62% 50%;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(8, 8, 7, 0.98) 0%, rgba(8, 8, 7, 0.83) 53%, rgba(8, 8, 7, 0.28) 100%),
      linear-gradient(0deg, rgba(8, 8, 7, 0.86) 0%, rgba(8, 8, 7, 0.08) 62%);
  }

  .hero-inner,
  .section {
    width: min(100% - 48px, var(--max));
  }

  .section {
    padding: 104px 0;
  }

  .about-layout,
  .topics-section {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .about-heading,
  .section-title-block {
    margin-top: 28px;
  }

  .about-body {
    max-width: 680px;
    margin-top: 48px;
  }

  .fact-row {
    margin-left: 0;
  }

  .path-list {
    grid-template-columns: 1fr;
  }

  .path-list li {
    min-height: 180px;
  }

  .topic-grid {
    grid-column: 1;
    grid-template-columns: 1fr;
  }

  .topic {
    min-height: 160px;
  }

  .planet-inner {
    padding-top: 104px;
    padding-bottom: 104px;
  }

  .planet-heading h2 {
    font-size: 68px;
  }

  .content-map-grid {
    grid-template-columns: 1fr;
  }

  .content-map-core {
    min-height: 360px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .product-facts {
    grid-template-columns: 1fr;
  }

  .product-facts > div,
  .product-facts > div + div {
    padding: 28px 0 32px;
    border-left: 0;
  }

  .product-facts > div + div {
    border-top: 1px solid var(--line);
  }

  .join-section {
    grid-template-columns: 1fr;
    gap: 72px;
  }

  .qr-figure {
    width: min(100%, 360px);
  }
}

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }

  .site-header {
    min-height: 64px;
    padding-right: 20px;
    padding-left: 20px;
  }

  .brand-en {
    display: none;
  }

  .header-cta {
    min-height: 38px;
    padding: 0 13px;
  }

  .hero {
    min-height: calc(100svh - 114px);
  }

  .hero-media {
    object-position: 58% 50%;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, rgba(8, 8, 7, 0.97) 0%, rgba(8, 8, 7, 0.79) 68%, rgba(8, 8, 7, 0.35) 100%),
      linear-gradient(0deg, rgba(8, 8, 7, 0.93) 0%, rgba(8, 8, 7, 0.18) 72%);
  }

  .hero-inner {
    width: calc(100% - 40px);
    padding-top: 48px;
    padding-bottom: 54px;
    justify-content: flex-end;
  }

  .hero-role {
    margin-bottom: 18px;
    font-size: 12px;
  }

  .hero h1 {
    font-size: 64px;
  }

  .hero-lead {
    font-size: 28px;
  }

  .hero-summary {
    margin-top: 20px;
    font-size: 15px;
    line-height: 1.7;
  }

  .hero-actions {
    width: 100%;
    margin-top: 26px;
  }

  .button {
    min-width: 0;
    min-height: 46px;
    padding: 0 16px;
    font-size: 14px;
  }

  .belief-strip {
    min-height: 96px;
    padding: 14px 20px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
  }

  .belief-strip p {
    font-size: 13px;
  }

  .belief-route {
    font-size: 11px;
  }

  .belief-route span + span::before {
    width: 18px;
    margin-right: 8px;
    margin-left: 8px;
  }

  .section {
    width: calc(100% - 40px);
    padding: 84px 0;
  }

  .section-number {
    font-size: 48px;
  }

  .about-heading,
  .section-title-block {
    margin-top: 24px;
  }

  .about-heading h2,
  .section-title-block h2,
  .join-copy h2 {
    font-size: 40px;
    line-height: 1.18;
  }

  .about-heading .lead-copy {
    margin-top: 28px;
    font-size: 20px;
  }

  .about-body {
    margin-top: 40px;
    padding-top: 22px;
  }

  .fact-row {
    margin-top: 64px;
    grid-template-columns: 1fr;
  }

  .fact-row > div,
  .fact-row > div + div {
    padding: 22px 0 24px;
    border-left: 0;
  }

  .fact-row > div + div {
    border-top: 1px solid var(--line);
  }

  .path-inner,
  .planet-inner {
    padding-top: 84px;
    padding-bottom: 84px;
  }

  .path-inner h2 {
    margin-top: 22px;
    font-size: 22px;
  }

  .path-statement {
    font-size: 42px;
    line-height: 1.18;
  }

  .path-list {
    margin-top: 58px;
  }

  .path-list li {
    min-height: 0;
    padding: 26px 0 30px;
    grid-template-columns: 40px 1fr;
    column-gap: 14px;
  }

  .path-list h3 {
    font-size: 23px;
  }

  .system-principle {
    max-width: none;
    margin-top: 52px;
    grid-template-columns: 1fr;
  }

  .system-principle > div {
    padding: 18px 0 20px;
  }

  .system-principle > div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .section-title-block p {
    margin-top: 22px;
    font-size: 17px;
  }

  .topic-grid {
    margin-top: 54px;
  }

  .topic {
    min-height: 0;
    padding: 25px 0 28px;
    grid-template-columns: 36px 1fr;
    gap: 14px;
  }

  .topic h3 {
    font-size: 22px;
  }

  .planet-heading {
    margin-top: 22px;
  }

  .planet-heading h2 {
    font-size: 52px;
    line-height: 1.1;
  }

  .planet-intro {
    margin-top: 22px;
  }

  .planet-intro p {
    font-size: 17px;
  }

  .content-map {
    margin-top: 48px;
  }

  .content-map-bar {
    min-height: 68px;
    padding: 15px 18px;
    align-items: flex-start;
  }

  .content-map-bar > div {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .content-map-core {
    min-height: 0;
    padding: 38px 24px 42px;
  }

  .content-map-core h3 {
    font-size: 30px;
    line-height: 1.35;
  }

  .content-map-formats {
    margin-top: 30px;
  }

  .content-map-modules {
    padding: 8px 24px 14px;
  }

  .content-map-modules article {
    min-height: 90px;
    padding: 16px 0;
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .content-map-modules h4 {
    font-size: 20px;
  }

  .product-facts {
    margin-top: 48px;
  }

  .product-boundary {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .product-boundary span + span::before {
    display: none;
  }

  .join-section {
    gap: 58px;
  }

  .join-copy h2 {
    font-size: 34px;
    line-height: 1.22;
  }

  .join-description {
    margin-top: 22px;
    font-size: 16px;
  }

  .join-description p + p {
    margin-top: 6px;
  }

  .price-row {
    margin-top: 34px;
  }

  .price-row strong {
    font-size: 74px;
  }

  .wechat-row {
    margin-top: 28px;
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .site-footer {
    min-height: 140px;
    padding: 28px 20px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
  }

  .site-footer > div {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }
}

@media (max-width: 390px) {
  .hero h1 {
    font-size: 58px;
  }

  .hero-lead {
    font-size: 25px;
  }

  .hero-actions {
    gap: 8px;
  }

  .button {
    padding-right: 13px;
    padding-left: 13px;
    font-size: 13px;
  }

  .about-heading h2,
  .section-title-block h2 {
    font-size: 36px;
  }

  .join-copy h2 {
    font-size: 32px;
  }

  .path-statement {
    font-size: 34px;
  }

  .planet-heading h2 {
    font-size: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}