:root {
  color-scheme: dark;
  --bg: #061522;
  --bg-deep: #040e18;
  --surface: #0a1e2d;
  --surface-strong: #0d2736;
  --text: #eef2f1;
  --pearl: #e9e5dc;
  --muted: #9bacb5;
  --dim: #70848f;
  --accent: #55c1c6;
  --accent-dark: #0d565f;
  --line: rgb(233 229 220 / 0.16);
  --line-strong: rgb(233 229 220 / 0.34);
  --radius: 14px;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Hiragino Mincho ProN", "Yu Mincho", Georgia, serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Yu Gothic", system-ui, sans-serif;
  --wrap: min(1240px, calc(100% - 56px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; overflow-x: hidden; background: var(--bg); color: var(--text); font: 16px/1.75 var(--sans); text-rendering: optimizeLegibility; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, figure { margin-top: 0; }
h1, h2, h3 { color: var(--pearl); font-family: var(--serif); font-weight: 500; }
h2 { margin-bottom: 24px; font-size: clamp(38px, 4.4vw, 64px); line-height: 1.16; letter-spacing: 0.01em; }
p { color: var(--muted); }
.wrap { width: var(--wrap); margin-inline: auto; }

.skip-link { position: fixed; top: 10px; left: 10px; z-index: 100; padding: 8px 14px; border-radius: var(--radius); background: var(--pearl); color: var(--bg); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.site-header { position: absolute; inset: 0 0 auto; z-index: 20; display: flex; align-items: center; gap: 38px; width: min(1440px, calc(100% - 64px)); height: 74px; margin-inline: auto; border-bottom: 1px solid rgb(255 255 255 / 0.13); transition: background 220ms ease, border-color 220ms ease; }
.site-header.is-scrolled { position: fixed; width: 100%; padding-inline: max(32px, calc((100% - 1376px) / 2)); background: rgb(4 14 24 / 0.88); border-color: var(--line); backdrop-filter: blur(20px) saturate(130%); }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; line-height: 1; }
.brand img { width: 42px; height: 42px; }
.brand-copy { display: grid; gap: 4px; }
.brand-copy strong { color: var(--pearl); font: 500 28px/0.85 var(--serif); letter-spacing: 0.1em; }
.brand-copy small { color: #b5c0c4; font-size: 8px; letter-spacing: 0.12em; white-space: nowrap; }
.header-actions { display: flex; align-items: center; gap: 24px; min-width: 0; margin-left: auto; }
.site-nav { display: flex; align-items: center; gap: clamp(16px, 2vw, 30px); white-space: nowrap; }
.site-nav a { position: relative; color: #c6d0d3; font-size: 13px; transition: color 180ms ease; }
.site-nav a::after { position: absolute; right: 0; bottom: -9px; left: 0; height: 1px; background: var(--accent); content: ""; transform: scaleX(0); transition: transform 180ms ease; }
.site-nav a:hover, .site-nav a.is-active { color: var(--text); }
.site-nav a.is-active::after { transform: scaleX(1); }
.language-switcher { display: flex; align-items: center; gap: 2px; padding: 4px; border: 1px solid var(--line); border-radius: var(--radius); }
.language-switcher button { min-width: 40px; padding: 5px 8px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); font-size: 11px; cursor: pointer; }
.language-switcher button[aria-pressed="true"] { background: var(--accent-dark); color: #ecffff; }
.header-download { padding: 9px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--pearl); font-size: 12px; white-space: nowrap; transition: border-color 180ms ease, background 180ms ease; }
.header-download:hover { border-color: var(--accent); background: rgb(85 193 198 / 0.08); }
.menu-toggle { display: none; }

.hero { position: relative; display: grid; min-height: max(680px, 100dvh); place-items: center; overflow: hidden; isolation: isolate; background: var(--bg-deep); }
.hero-image, .hero-shade { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: center; }
.hero-shade { z-index: -1; background: linear-gradient(90deg, rgb(4 14 24 / 0.94) 0%, rgb(4 14 24 / 0.72) 42%, rgb(4 14 24 / 0.1) 76%), linear-gradient(0deg, rgb(4 14 24 / 0.56), transparent 32%); }
.hero-content { padding-top: 54px; }
.hero h1 { max-width: 700px; margin: 0 0 22px; white-space: pre-line; font-size: clamp(52px, 6.2vw, 88px); line-height: 1.08; letter-spacing: 0.01em; }
.hero-content > p { max-width: 480px; margin-bottom: 30px; color: #c2ced2; font-size: 17px; }
.hero-actions { display: flex; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 50px; padding: 12px 20px; border: 1px solid transparent; border-radius: var(--radius); font-size: 14px; font-weight: 600; line-height: 1; white-space: nowrap; transition: transform 180ms ease, background 180ms ease, border-color 180ms ease; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0) scale(0.98); }
.button-primary { background: var(--accent); color: #04171c; }
.button-primary:hover { background: #72d4d7; }
.button-secondary { border-color: var(--line-strong); background: rgb(4 14 24 / 0.32); color: var(--pearl); }
.button-secondary:hover { border-color: var(--accent); background: rgb(85 193 198 / 0.08); }

.facts { border-bottom: 1px solid var(--line); background: var(--bg-deep); }
.facts-grid { display: grid; grid-template-columns: 1.35fr 1fr 0.8fr 0.7fr; }
.facts-grid > div { display: grid; gap: 5px; min-height: 118px; align-content: center; padding: 24px 26px; }
.facts-grid > div + div { border-left: 1px solid var(--line); }
.facts-grid span { color: var(--dim); font-size: 11px; letter-spacing: 0.08em; }
.facts-grid strong { color: var(--pearl); font: 500 clamp(17px, 1.6vw, 24px)/1.3 var(--serif); }

.eyebrow { margin-bottom: 20px; color: var(--accent); font-size: 11px; font-weight: 700; letter-spacing: 0.16em; }
.manifesto { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr); gap: clamp(50px, 10vw, 150px); align-items: end; padding-block: 150px; }
.manifesto h2 { max-width: 760px; margin-bottom: 0; }
.manifesto-body { padding-bottom: 6px; }
.manifesto-body p { margin-bottom: 16px; }
.text-link { display: inline-flex; gap: 14px; align-items: center; margin-top: 10px; color: var(--pearl); font-weight: 600; transition: color 180ms ease, gap 180ms ease; }
.text-link:hover { gap: 20px; color: var(--accent); }

.culture { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(420px, 0.88fr); min-height: 820px; background: var(--surface); }
.culture-image { min-height: 720px; overflow: hidden; }
.culture-image img { width: 100%; height: 100%; object-fit: cover; object-position: center 34%; }
.culture-content { width: min(520px, calc(100% - 72px)); align-self: center; margin: 0 auto; }
.culture-lead { margin-bottom: 42px; font-size: 17px; }
.culture-index { counter-reset: culture; }
.culture-index article { position: relative; display: grid; grid-template-columns: 128px 1fr; gap: 18px; padding: 20px 0; border-top: 1px solid var(--line); counter-increment: culture; }
.culture-index article::before { position: absolute; top: 23px; left: -42px; color: var(--accent); font: 500 11px var(--sans); content: "0" counter(culture); }
.culture-index strong { color: var(--pearl); font: 500 20px var(--serif); }
.culture-index p { margin: 0; font-size: 14px; }

.ecosystem { padding-block: 150px; overflow: hidden; background: radial-gradient(circle at 82% 26%, rgb(36 108 117 / 0.18), transparent 32%), var(--bg); }
.ecosystem-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(380px, 0.82fr); gap: clamp(70px, 12vw, 168px); align-items: center; }
.ecosystem-copy { max-width: 680px; }
.ecosystem-lead { max-width: 620px; margin-bottom: 38px; }
.service-path { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.service-path > div { display: grid; grid-template-columns: 38px 1fr; gap: 12px; padding: 24px 20px 24px 0; border-bottom: 1px solid var(--line); }
.service-path > div:nth-child(even) { padding-left: 22px; border-left: 1px solid var(--line); }
.service-path > div > span { color: var(--accent); font-size: 11px; }
.service-path strong { color: var(--pearl); font: 500 20px var(--serif); }
.service-path p { margin: 6px 0 0; font-size: 13px; }
.phone-stage { position: relative; display: grid; justify-items: center; margin: 0; }
.phone-stage::before { position: absolute; inset: 12% -18% 18%; z-index: -1; border-radius: 50%; background: rgb(49 126 134 / 0.16); filter: blur(60px); content: ""; }
.phone-frame { width: min(360px, 100%); max-height: 760px; padding: 9px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 42px; background: #0a0f0d; box-shadow: 0 30px 80px rgb(0 6 11 / 0.45); }
.phone-frame img { width: 100%; height: 742px; border-radius: 34px; object-fit: cover; object-position: top; }
.phone-stage figcaption { max-width: 360px; margin-top: 18px; color: var(--dim); font-size: 12px; text-align: center; }

.tokenomics { display: grid; grid-template-columns: minmax(420px, 0.95fr) minmax(0, 1.05fr); gap: clamp(64px, 10vw, 140px); align-items: center; padding-block: 150px; }
.token-visual { position: relative; min-height: 730px; margin: 0; overflow: hidden; border-radius: var(--radius); background: var(--surface); }
.token-visual img { width: 100%; height: 100%; min-height: 730px; object-fit: cover; }
.token-visual::after { position: absolute; inset: 0; background: linear-gradient(0deg, rgb(5 18 28 / 0.82), transparent 52%); content: ""; }
.supply-seal { position: absolute; bottom: 34px; left: 34px; z-index: 1; display: grid; }
.supply-seal span { color: #c7d5d8; font-size: 11px; letter-spacing: 0.12em; }
.supply-seal strong { color: var(--pearl); font: 500 clamp(62px, 7vw, 98px)/0.98 var(--serif); }
.supply-seal small { color: var(--accent); font-weight: 700; letter-spacing: 0.18em; }
.token-copy > p { max-width: 620px; }
.allocation-list { margin: 34px 0 24px; border-top: 1px solid var(--line-strong); }
.allocation { position: relative; display: grid; grid-template-columns: 100px 1fr auto; gap: 20px; align-items: baseline; padding: 19px 0 19px 18px; border-bottom: 1px solid var(--line); }
.allocation::before { position: absolute; top: 18px; bottom: 18px; left: 0; width: 3px; background: var(--accent); content: ""; opacity: var(--allocation-opacity); }
.allocation-60 { --allocation-opacity: 1; }
.allocation-25 { --allocation-opacity: 0.72; }
.allocation-5 { --allocation-opacity: 0.38; }
.allocation-10 { --allocation-opacity: 0.54; }
.allocation strong { color: var(--pearl); font: 500 34px var(--serif); }
.allocation span { color: #ced8da; }
.allocation small { color: var(--dim); font: 11px var(--sans); white-space: nowrap; }
.boundary-note { padding-left: 18px; border-left: 1px solid var(--accent); color: #8fa4ac; font-size: 12px; }

.infrastructure { padding-block: 150px; background: var(--surface); }
.infrastructure-grid { display: grid; grid-template-columns: 0.82fr 0.72fr 1.1fr; grid-template-areas: "heading image specs"; gap: clamp(38px, 6vw, 82px); align-items: center; }
.infra-heading { grid-area: heading; }
.infra-heading h2 { font-size: clamp(38px, 4vw, 58px); }
.infra-image { grid-area: image; height: 650px; margin: 0; overflow: hidden; border-radius: var(--radius); }
.infra-image img { width: 100%; height: 100%; object-fit: cover; }
.infra-specs { grid-area: specs; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.infra-specs > div { min-height: 190px; padding: 25px 22px 22px 0; border-bottom: 1px solid var(--line); }
.infra-specs > div:nth-child(even) { padding-left: 22px; border-left: 1px solid var(--line); }
.infra-specs span { color: var(--accent); font-size: 11px; letter-spacing: 0.1em; }
.infra-specs strong { display: block; margin-top: 10px; color: var(--pearl); font: 500 20px/1.35 var(--serif); }
.infra-specs p { margin: 10px 0 0; font-size: 12px; }

.disclosure { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr); gap: clamp(64px, 10vw, 140px); align-items: center; padding-block: 150px; }
.disclosure-copy { max-width: 610px; }
.disclosure-copy > p { margin-bottom: 34px; }
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { position: relative; padding: 18px 34px 18px 0; color: var(--pearl); font-weight: 600; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { position: absolute; top: 18px; right: 4px; color: var(--accent); content: "+"; }
details[open] summary::after { content: "−"; }
details p { max-width: 540px; margin: -2px 0 20px; font-size: 13px; }
.disclosure-image { height: 720px; margin: 0; overflow: hidden; border-radius: var(--radius); }
.disclosure-image img { width: 100%; height: 100%; object-fit: cover; }

.roadmap { position: relative; min-height: 860px; overflow: hidden; isolation: isolate; }
.roadmap > img, .roadmap-shade { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; }
.roadmap > img { object-fit: cover; object-position: center 40%; }
.roadmap-shade { z-index: -1; background: linear-gradient(90deg, rgb(4 14 24 / 0.94) 0%, rgb(4 14 24 / 0.72) 55%, rgb(4 14 24 / 0.28)), linear-gradient(0deg, rgb(4 14 24 / 0.66), transparent 50%); }
.roadmap-content { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(60px, 10vw, 150px); align-items: center; min-height: 860px; padding-block: 100px; }
.roadmap-heading h2 { max-width: 740px; }
.roadmap-steps { border-top: 1px solid var(--line-strong); }
.roadmap-steps article { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.roadmap-steps strong { color: var(--accent); font: 500 34px var(--serif); }
.roadmap-steps p { margin: 2px 0 0; color: #bac8cc; font-size: 14px; }

.whitepaper { display: flex; align-items: center; justify-content: space-between; gap: 50px; margin-top: 120px; padding: 62px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: radial-gradient(circle at 86% 20%, rgb(49 126 134 / 0.28), transparent 30%), var(--surface); }
.whitepaper-copy { max-width: 760px; }
.whitepaper h2 { margin-bottom: 14px; font-size: clamp(36px, 4.2vw, 56px); }
.whitepaper p { margin-bottom: 0; }
.site-footer { margin-top: 120px; border-top: 1px solid var(--line); background: var(--bg-deep); }
.footer-grid { display: grid; grid-template-columns: 0.72fr 1.45fr 0.83fr; gap: 56px; align-items: start; padding-block: 48px; }
.footer-grid > p { max-width: 620px; margin: 0; color: var(--dim); font-size: 11px; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.footer-links a { color: #aab8bd; font-size: 12px; }
.footer-links a:hover { color: var(--accent); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 700ms cubic-bezier(0.16, 1, 0.3, 1), transform 700ms cubic-bezier(0.16, 1, 0.3, 1); transition-delay: var(--delay, 0ms); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1100px) {
  .site-header { width: calc(100% - 40px); }
  .site-header.is-scrolled { padding-inline: 20px; }
  .menu-toggle { display: grid; gap: 4px; width: 42px; height: 42px; margin-left: auto; place-content: center; border: 1px solid var(--line); border-radius: var(--radius); background: rgb(4 14 24 / 0.55); cursor: pointer; }
  .menu-toggle span { display: block; width: 17px; height: 1px; background: currentColor; transition: transform 180ms ease, opacity 180ms ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
  .header-actions { position: fixed; inset: 74px 0 auto; display: grid; gap: 26px; max-height: calc(100dvh - 74px); padding: 34px 28px 42px; overflow-y: auto; background: rgb(4 14 24 / 0.98); border-bottom: 1px solid var(--line); opacity: 0; pointer-events: none; transform: translateY(-12px); transition: opacity 180ms ease, transform 180ms ease; }
  .header-actions.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
  .site-nav { display: grid; gap: 0; }
  .site-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); font: 500 24px var(--serif); }
  .site-nav a::after { display: none; }
  .language-switcher { width: max-content; }
  .header-download { width: max-content; }
  .manifesto { grid-template-columns: 1fr 0.8fr; gap: 60px; }
  .culture { grid-template-columns: 1fr 1fr; }
  .ecosystem-grid { gap: 68px; }
  .tokenomics { gap: 70px; }
  .infrastructure-grid { grid-template-columns: 0.85fr 1fr; grid-template-areas: "heading image" "specs specs"; }
  .infra-image { height: 520px; }
}

@media (max-width: 760px) {
  :root { --wrap: min(100% - 36px, 1240px); }
  h2 { font-size: clamp(36px, 10.5vw, 48px); }
  .site-header { width: calc(100% - 36px); height: 68px; }
  .site-header.is-scrolled { padding-inline: 18px; }
  .header-actions { top: 68px; }
  .brand img { width: 36px; height: 36px; }
  .brand-copy strong { font-size: 24px; }
  .brand-copy small { font-size: 7px; }
  .hero { min-height: max(680px, 100dvh); }
  .hero-image { object-position: 66% center; }
  .hero-shade { background: linear-gradient(90deg, rgb(4 14 24 / 0.95), rgb(4 14 24 / 0.77) 62%, rgb(4 14 24 / 0.2)), linear-gradient(0deg, rgb(4 14 24 / 0.76), transparent 52%); }
  .hero-content { padding-top: 28px; padding-bottom: 18px; }
  .hero h1 { max-width: 520px; font-size: clamp(47px, 14vw, 64px); line-height: 1.1; }
  .hero-content > p { max-width: 360px; font-size: 15px; }
  .hero-actions { display: grid; max-width: 360px; }
  .button { width: 100%; }
  .facts-grid { grid-template-columns: 1fr 1fr; }
  .facts-grid > div { min-height: 106px; padding: 20px 16px; }
  .facts-grid > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .facts-grid > div:nth-child(4) { border-top: 1px solid var(--line); }
  .manifesto, .ecosystem-grid, .tokenomics, .disclosure, .roadmap-content { grid-template-columns: 1fr; }
  .manifesto { gap: 34px; padding-block: 92px; }
  .culture { grid-template-columns: 1fr; min-height: 0; }
  .culture-image { min-height: 540px; }
  .culture-content { width: var(--wrap); padding-block: 88px; }
  .culture-index article { grid-template-columns: 108px 1fr; }
  .culture-index article::before { display: none; }
  .ecosystem { padding-block: 92px; }
  .ecosystem-grid { gap: 58px; }
  .service-path { grid-template-columns: 1fr; }
  .service-path > div, .service-path > div:nth-child(even) { padding: 20px 0; border-left: 0; }
  .phone-frame { width: min(340px, 90vw); max-height: 690px; }
  .phone-frame img { height: 672px; }
  .tokenomics { gap: 46px; padding-block: 92px; }
  .token-visual { min-height: 540px; }
  .token-visual img { min-height: 540px; }
  .allocation { grid-template-columns: 80px 1fr; gap: 10px; }
  .allocation small { grid-column: 2; }
  .infrastructure { padding-block: 92px; }
  .infrastructure-grid { grid-template-columns: 1fr; grid-template-areas: "heading" "image" "specs"; gap: 42px; }
  .infra-image { height: 520px; }
  .infra-specs { grid-template-columns: 1fr; }
  .infra-specs > div, .infra-specs > div:nth-child(even) { min-height: 0; padding: 22px 0; border-left: 0; }
  .disclosure { gap: 48px; padding-block: 92px; }
  .disclosure-image { height: 560px; }
  .roadmap, .roadmap-content { min-height: 860px; }
  .roadmap-content { align-content: center; gap: 50px; padding-block: 88px; }
  .roadmap-steps article { grid-template-columns: 92px 1fr; }
  .whitepaper { display: grid; gap: 30px; margin-top: 72px; padding: 36px 25px; }
  .site-footer { margin-top: 72px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-block: 38px; }
  .footer-links { grid-template-columns: repeat(2, max-content); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header.is-scrolled, .header-actions { background: var(--bg-deep); backdrop-filter: none; }
}