:root {
  color-scheme: dark;
  --night: #090e17;
  --ink: #eae7dd;
  --muted: #a2a7ad;
  --gold: #dcc28b;
  --line: #ffffff20;
  --serif:
    "Iowan Old Style", Baskerville, "Palatino Linotype", "Songti TC", serif;
  --sans: "Avenir Next", "PingFang TC", "Noto Sans TC", sans-serif;
  --mono: "SFMono-Regular", Consolas, monospace;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
body {
  margin: 0;
  background: var(--night);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
body:before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 850px;
  background: radial-gradient(ellipse at 77% 34%, #8b79430f, transparent 47%);
  pointer-events: none;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 7px;
}
::selection {
  background: #dcc28b;
  color: #090e17;
}
.wrap {
  width: min(1240px, calc(100% - 96px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  padding: 14px;
  background: var(--gold);
  color: var(--night);
  z-index: 20;
  transform: translateY(-160%);
}
.skip-link:focus {
  transform: none;
}
.site-header {
  height: 106px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-size: 23px;
  letter-spacing: 3px;
}
.brand-star {
  font-size: 37px;
  color: var(--gold);
  line-height: 1;
}
.site-header nav {
  display: flex;
  gap: 32px;
  font-size: 13px;
  color: var(--muted);
}
.site-header nav a:hover,
.text-link:hover,
.site-footer a:hover {
  color: var(--gold);
}
.nav-play {
  font-size: 13px;
  border: 1px solid #a18e6266;
  padding: 12px 20px;
  display: flex;
  gap: 25px;
  transition: background 0.2s;
}
.nav-play:hover {
  background: #dcc28b12;
}
.language-toggle {
  flex-shrink: 0;
  font: 12px var(--sans);
  color: var(--gold);
  border: 1px solid var(--line);
  background: transparent;
  padding: 10px 12px;
  cursor: pointer;
  margin-left: auto;
}
.language-toggle:hover {
  background: #dcc28b12;
}
html[lang="en"] .hero-heading {
  letter-spacing: 0;
}
@media (max-width: 600px) {
  .site-header { gap: 10px; flex-wrap: wrap; height: auto; min-height: 90px; padding-block: 18px; }
  .site-header .brand { font-size: 16px; letter-spacing: 1px; gap: 5px; }
  .site-header .brand-star { font-size: 25px; }
  .site-header .nav-play { padding: 10px; gap: 8px; font-size: 11px; }
  .language-toggle { padding: 10px 8px; font-size: 11px; }
  .integration-list article > div { flex-wrap: wrap; }
  .status { max-width: 100%; white-space: normal; }
}
.hero {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 24px;
  align-items: center;
  min-height: 688px;
  padding-block: 65px 74px;
  position: relative;
}
.eyebrow {
  font: 10px/1.8 var(--mono);
  letter-spacing: 1.8px;
  color: var(--gold);
  margin: 0 0 24px;
}
.small-star {
  margin-right: 8px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(68px, 6.6vw, 96px);
  letter-spacing: -3px;
  line-height: 1.04;
  margin: 0 0 30px;
}
em {
  font-style: italic;
  color: var(--gold);
}
.hero-heading {
  font-family: var(--serif);
  font-size: 25px;
  letter-spacing: 3px;
  line-height: 1.7;
  margin: 0 0 16px;
}
.hero-description {
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
  margin: 0 0 32px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  min-height: 54px;
  padding: 16px 24px;
  font-size: 14px;
  transition:
    background 0.2s,
    transform 0.2s;
}
.primary {
  background: var(--gold);
  color: #171b23;
}
.primary:hover {
  background: #f1daa4;
  transform: translateY(-2px);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  font-size: 13px;
  min-height: 44px;
  border-bottom: 1px solid #a18e6266;
}
.entry-note {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.8;
  margin: 18px 0 0;
}
.entry-note span {
  margin-inline: 7px;
  color: #675f4f;
}
.celestial-chart {
  margin: 0;
  position: relative;
  animation: arrive 1.3s ease both;
}
.chart-heading,
.celestial-chart figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font: 9px/1.8 var(--mono);
  letter-spacing: 2px;
  color: var(--muted);
}
.chart-heading {
  padding-inline: 18px;
}
.star-chart {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}
.celestial-chart figcaption {
  border-top: 1px solid var(--line);
  padding-top: 15px;
  letter-spacing: 1px;
  font-size: 11px;
}
.chart-caption {
  font-size: 10px;
  color: #939891;
  flex-shrink: 0;
}
.constellation-lines {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: connect 3s ease 0.3s forwards;
}
.hero-copy {
  animation: arrive 0.8s ease both;
}
.field-strip {
  border-block: 1px solid var(--line);
  background: #ffffff02;
}
.field-strip .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-block: 22px;
  color: var(--muted);
  font: 10px/1.6 var(--mono);
  letter-spacing: 2px;
}
.field-strip span:nth-child(even) {
  color: var(--gold);
  font-size: 20px;
}
.section {
  padding-block: 102px;
}
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 56px;
}
.section-heading .eyebrow {
  margin-bottom: 20px;
}
h2 {
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 400;
  letter-spacing: 2px;
  line-height: 1.45;
  margin: 0;
}
h2 em {
  font-style: normal;
}
.section-intro {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.95;
  margin: 0 0 8px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line);
}
.steps article {
  padding: 30px 30px 30px 0;
}
.steps article + article {
  border-left: 1px solid var(--line);
  padding-left: 30px;
}
.step-number {
  display: block;
  color: #9d8e6e;
  font-family: var(--serif);
  font-size: 38px;
  font-style: italic;
  margin-bottom: 28px;
}
h3 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 1px;
  margin: 0 0 14px;
}
.steps p,
.observation-note p,
.integration-list p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.95;
  margin: 0;
}
.step-foot {
  display: block;
  font: 9px/1.6 var(--mono);
  letter-spacing: 1.6px;
  color: var(--gold);
  margin-top: 32px;
}
.field-section {
  display: grid;
  grid-template-columns: 0.72fr 1.6fr;
  align-items: center;
  gap: 60px;
  padding-bottom: 102px;
}
.field-copy > p:not(.eyebrow) {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.9;
}
.field-copy .text-link {
  margin-top: 12px;
}
.field-copy .capture-note {
  font-size: 10px !important;
  line-height: 1.8;
  margin-top: 32px;
}
.game-capture {
  margin: 0;
  border: 1px solid #9b8b6359;
  padding: 8px;
  background: #11151f;
  box-shadow: 0 24px 80px #0004;
}
.game-capture img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1.6;
  object-fit: cover;
}
.game-capture figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 10px 6px;
  font: 8px/1.8 var(--mono);
  letter-spacing: 1.4px;
  color: var(--muted);
}
.observation-section {
  border-top: 1px solid var(--line);
}
.observation-layout {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 100px;
}
.observation-note {
  border-left: 1px solid #a18e6299;
  padding: 6px 0 6px 28px;
  align-self: start;
}
.observation-note .eyebrow {
  display: block;
  margin-bottom: 24px;
}
.observation-note h3 {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: 2px;
}
.observation-note .trust-note {
  font-size: 11px;
  margin-top: 20px;
  color: #9b9b98;
}
.integration-list article {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.integration-list article:first-child {
  padding-top: 0;
}
.integration-list article > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}
.integration-list h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.5px;
}
.status {
  font-size: 10px;
  color: var(--gold);
  border: 1px solid #a18e6255;
  padding: 5px 8px;
  flex-shrink: 0;
}
.development-note {
  font-size: 10px;
  line-height: 1.9;
  color: var(--muted);
  border-top: 1px solid var(--line);
  margin: 40px 0 0;
  padding-top: 20px;
}
.faq-section {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 100px;
}
.faq-list {
  border-top: 1px solid var(--line);
}
details {
  border-bottom: 1px solid var(--line);
}
summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 23px 0;
  font-size: 14px;
  line-height: 1.6;
}
summary::-webkit-details-marker {
  display: none;
}
summary span {
  color: var(--gold);
  font-size: 22px;
  font-weight: 300;
  line-height: 1;
  transition: transform 0.2s;
}
details[open] summary span {
  transform: rotate(45deg);
}
details p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
  margin: 0;
  padding: 0 32px 24px 0;
}
.final-invitation {
  text-align: center;
  border-block: 1px solid var(--line);
  padding: 66px 20px 78px;
  background: radial-gradient(ellipse at center, #c4a6680a, transparent 65%);
}
.invitation-star {
  display: block;
  font-size: 54px;
  color: var(--gold);
  margin-bottom: 22px;
}
.final-invitation .eyebrow {
  margin-bottom: 18px;
}
.final-invitation h2 {
  font-size: 35px;
  margin-bottom: 30px;
}
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 38px;
}
.site-footer .brand {
  font-size: 16px;
}
.site-footer p {
  font: italic 14px var(--serif);
  color: var(--muted);
}
.site-footer > a:last-child {
  font-size: 11px;
  color: var(--muted);
}
@keyframes arrive {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes connect {
  to {
    stroke-dashoffset: 0;
  }
}
@media (min-width: 1500px) {
  .hero {
    min-height: 760px;
  }
}
@media (max-width: 1000px) {
  .wrap {
    width: calc(100% - 56px);
  }
  .site-header nav {
    gap: 20px;
  }
  .hero {
    gap: 0;
    min-height: 620px;
  }
  .hero h1 {
    font-size: 72px;
  }
  .hero-heading {
    font-size: 22px;
  }
  .hero .eyebrow {
    font-size: 8px;
    letter-spacing: 1px;
  }
  .hero-actions {
    gap: 18px;
  }
  .button {
    gap: 25px;
  }
  .field-section {
    gap: 35px;
  }
  .observation-layout,
  .faq-section {
    gap: 50px;
  }
  .field-strip .wrap {
    font-size: 8px;
    letter-spacing: 1px;
  }
  .chart-heading {
    font-size: 8px;
    letter-spacing: 1px;
  }
}
@media (max-width: 720px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .site-header {
    height: 82px;
    gap: 12px;
  }
  .brand {
    font-size: 18px;
    letter-spacing: 2px;
    gap: 7px;
  }
  .brand-star {
    font-size: 29px;
  }
  .site-header nav {
    display: none;
  }
  .nav-play {
    padding: 10px 12px;
    gap: 12px;
    font-size: 12px;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-block: 50px 36px;
    gap: 42px;
  }
  .hero h1 {
    font-size: 76px;
    letter-spacing: -2px;
    margin-bottom: 22px;
  }
  .hero .eyebrow {
    font-size: 8px;
    letter-spacing: 1.4px;
  }
  .hero-heading {
    font-size: 23px;
  }
  .hero-description {
    font-size: 13px;
  }
  .hero-actions {
    gap: 24px;
  }
  .entry-note {
    font-size: 10px;
  }
  .celestial-chart {
    width: min(100%, 480px);
    justify-self: center;
  }
  .chart-heading {
    padding-inline: 3px;
  }
  .field-strip .wrap {
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    padding-block: 17px;
    font-size: 8px;
    letter-spacing: 0.7px;
  }
  .field-strip span:last-child,
  .field-strip span:nth-child(4) {
    display: none;
  }
  .section {
    padding-block: 65px;
  }
  .section-heading {
    display: block;
    margin-bottom: 35px;
  }
  h2 {
    font-size: 34px;
    letter-spacing: 1.5px;
  }
  .section-intro {
    margin: 24px 0 0;
    font-size: 13px;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .steps article,
  .steps article + article {
    padding: 25px 0;
    border-left: 0;
    position: relative;
    padding-left: 57px;
  }
  .steps article + article {
    border-top: 1px solid var(--line);
  }
  .step-number {
    position: absolute;
    top: 23px;
    left: 0;
    font-size: 30px;
  }
  .steps h3 {
    font-size: 17px;
  }
  .step-foot {
    margin-top: 18px;
  }
  .field-section {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 64px;
  }
  .field-copy .capture-note {
    margin-top: 18px;
  }
  .game-capture {
    padding: 5px;
  }
  .game-capture figcaption {
    font-size: 7px;
    letter-spacing: 0.5px;
    padding-inline: 3px;
  }
  .observation-layout,
  .faq-section {
    grid-template-columns: 1fr;
    gap: 38px;
  }
  .observation-note {
    padding-left: 22px;
  }
  .integration-list h3 {
    font-size: 20px;
  }
  .status {
    font-size: 9px;
  }
  .development-note {
    margin-top: 28px;
  }
  .faq-section .eyebrow {
    margin-bottom: 15px;
  }
  .final-invitation {
    padding: 48px 15px 54px;
  }
  .final-invitation h2 {
    font-size: 26px;
    line-height: 1.6;
  }
  .site-footer {
    flex-wrap: wrap;
    padding-block: 28px;
  }
  .site-footer p {
    order: 3;
    width: 100%;
    margin: 0;
    font-size: 13px;
  }
}
@media (max-width: 360px) {
  .hero h1 {
    font-size: 66px;
  }
  .hero-actions {
    gap: 16px;
  }
  .button {
    padding-inline: 18px;
    gap: 20px;
  }
  .entry-note span {
    margin-inline: 3px;
  }
  .integration-list article > div {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
  .constellation-lines {
    stroke-dashoffset: 0;
  }
}