:root {
  --bg: #0a0b1a;
  --bg-2: #11132b;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.10);
  --text: #eef0ff;
  --muted: #9aa0c8;
  --brand: #7c5cff;
  --brand-2: #22d3ee;
  --brand-3: #ff5ca8;
  --grad: linear-gradient(120deg, #7c5cff 0%, #22d3ee 50%, #ff5ca8 100%);
  --radius: 18px;
  --maxw: 1140px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ---------- background glow ---------- */
.bg-glow {
  position: fixed; inset: 0; z-index: -2; overflow: hidden;
}
.bg-glow span {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5;
}
.bg-glow span:nth-child(1){ width: 520px; height: 520px; background:#7c5cff; top:-160px; left:-120px; }
.bg-glow span:nth-child(2){ width: 460px; height: 460px; background:#22d3ee; top: 30%; right:-160px; }
.bg-glow span:nth-child(3){ width: 420px; height: 420px; background:#ff5ca8; bottom:-180px; left: 30%; }
.bg-grid {
  position: fixed; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
}

/* ---------- nav ---------- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 11, 26, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 22px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: .5px; }
.logo img {
  height: 30px; width: auto; display: block; border-radius: 8px;
}
.nav-links { display: flex; gap: 26px; font-size: 15px; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 9px 18px; border-radius: 999px; background: var(--grad);
  color: #0a0b1a; font-weight: 700; font-size: 14px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 28px rgba(124,92,255,.45); }
.menu-btn { display: none; background: none; border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 8px 12px; font-size: 18px; cursor: pointer; }

/* ---------- layout ---------- */
section { max-width: var(--maxw); margin: 0 auto; padding: 92px 22px; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--brand-2); margin-bottom: 14px;
}
h1, h2, h3 { line-height: 1.2; }
h2.title { font-size: clamp(28px, 4vw, 44px); font-weight: 800; margin-bottom: 14px; }
.lead { color: var(--muted); font-size: 17px; max-width: 720px; }
.grad-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- hero ---------- */
.hero { padding-top: 120px; text-align: center; }
.hero h1 { font-size: clamp(34px, 6vw, 68px); font-weight: 900; letter-spacing: -1px; }
.hero .lead { margin: 22px auto 0; font-size: 19px; }
.hero-cta { margin-top: 34px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  padding: 14px 28px; border-radius: 999px; font-weight: 700; font-size: 16px;
  cursor: pointer; transition: transform .15s ease, box-shadow .15s ease;
  border: 1px solid transparent;
}
.btn-primary { background: var(--grad); color: #0a0b1a; box-shadow: 0 10px 30px rgba(124,92,255,.4); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); }

.stat-row {
  margin-top: 64px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 18px;
}
.stat .num { font-size: 30px; font-weight: 900; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat .lbl { color: var(--muted); font-size: 14px; margin-top: 6px; }

/* ---------- cards ---------- */
.grid { display: grid; gap: 18px; margin-top: 40px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(124,92,255,.5); background: var(--surface-2); }
.card .ico { font-size: 30px; margin-bottom: 12px; }
.card h3 { font-size: 19px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }

/* ---------- tokenomics bars ---------- */
.split-bars { display: flex; flex-direction: column; gap: 14px; margin-top: 30px; }
.bar-row { display: grid; grid-template-columns: 150px 1fr 70px; align-items: center; gap: 14px; }
.bar-row .name { font-size: 14px; color: var(--muted); }
.bar-track { height: 14px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; background: var(--grad); }
.bar-row .pct { text-align: right; font-weight: 700; font-size: 14px; }

/* ---------- ways table ---------- */
.ways { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.way {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; display: flex; gap: 14px; align-items: flex-start;
}
.way .emoji { font-size: 28px; }
.way h4 { font-size: 16px; margin-bottom: 4px; }
.way p { color: var(--muted); font-size: 14px; }

/* ---------- tiers ---------- */
.tiers { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-top: 30px; }
.tier { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; text-align: center; }
.tier .mult { font-size: 34px; font-weight: 900; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.tier .dur { color: var(--muted); font-size: 14px; margin-top: 6px; }

/* ---------- roadmap ---------- */
.road { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-top: 34px; }
.phase { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.phase .tag { font-size: 12px; font-weight: 700; color: var(--brand-2); letter-spacing: 1px; }
.phase h4 { margin: 8px 0; font-size: 17px; }
.phase p { color: var(--muted); font-size: 14px; }

/* ---------- cta band ---------- */
.cta-band {
  margin: 40px auto; max-width: var(--maxw); padding: 56px 28px; border-radius: 28px;
  background: var(--grad); color: #0a0b1a; text-align: center;
}
.cta-band h2 { font-size: clamp(26px,4vw,40px); font-weight: 900; }
.cta-band p { font-size: 17px; margin: 12px auto 26px; max-width: 620px; opacity: .85; }
.cta-band .btn-dark { background: #0a0b1a; color: #fff; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--border); padding: 40px 22px; }
.foot-inner { max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; color: var(--muted); font-size: 14px; }
.foot-links { display: flex; gap: 22px; }
.foot-links a:hover { color: var(--text); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- prose (whitepaper) ---------- */
.prose { max-width: 860px; margin: 0 auto; padding: 70px 22px 40px; }
.prose h1 { font-size: clamp(28px, 5vw, 44px); font-weight: 900; margin-bottom: 8px; }
.prose .meta { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.prose h2 { font-size: 26px; font-weight: 800; margin: 40px 0 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.prose h3 { font-size: 19px; font-weight: 700; margin: 26px 0 8px; color: var(--text); }
.prose p { color: #c9cdf0; margin: 10px 0; }
.prose ul, .prose ol { color: #c9cdf0; margin: 10px 0 10px 22px; }
.prose li { margin: 6px 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.prose th, .prose td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.prose th { background: var(--surface-2); color: var(--text); }
.prose td { color: #c9cdf0; }
.prose .back { display: inline-block; margin-bottom: 18px; color: var(--brand-2); font-size: 14px; }
.prose blockquote { border-left: 3px solid var(--brand); padding: 4px 16px; color: var(--muted); margin: 16px 0; }
.prose .tag-anon { display:inline-block; background: var(--surface-2); border:1px solid var(--border); border-radius:999px; padding:4px 12px; font-size:13px; color: var(--muted); }

/* ---------- download ---------- */
.dl-card { display: flex; flex-direction: column; }
/* 让描述段落吃掉卡片里的剩余空间，把下载按钮顶到底部。
   三张卡片文案长度不同，若按钮紧跟内容就会高低不平；这样无论文案长短，
   同一行的按钮始终落在同一水平线上。 */
.dl-card p { flex: 1 1 auto; margin-bottom: 20px; }
.dl-card .dl-btn {
  margin-top: 0; width: 100%; text-align: center; display: block;
}

/* ---------- language switch（自定义下拉，保留炫彩渐变风格） ----------
   原生 <select> 的展开列表由操作系统绘制，无法套用站点渐变，故自绘控件：
   触发按钮沿用品牌渐变，展开面板为卡片式，选中项以金色高亮。 */
.lang-drop { position: relative; }
.lang-drop-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px; border: 0; border-radius: 999px;
  background: var(--grad); color: #0a0b1a; font-weight: 700; font-size: 13px;
  font-family: inherit; cursor: pointer; white-space: nowrap;
  box-shadow: 0 4px 14px rgba(124, 92, 255, .28);
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.lang-drop-btn:hover {
  transform: translateY(-1px); filter: brightness(1.06);
  box-shadow: 0 6px 18px rgba(124, 92, 255, .4);
}
.lang-caret { font-size: 10px; line-height: 1; transition: transform .18s ease; }
.lang-drop.open .lang-caret { transform: rotate(180deg); }

.lang-menu {
  position: absolute; top: calc(100% + 8px); right: 0; z-index: 60;
  min-width: 134px; margin: 0; padding: 6px; list-style: none;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .5);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
}
.lang-drop.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu li {
  padding: 9px 12px; border-radius: 10px; font-size: 13px; color: var(--muted);
  cursor: pointer; white-space: nowrap;
  transition: background .13s ease, color .13s ease;
}
.lang-menu li:hover { background: rgba(124, 92, 255, .16); color: var(--text); }
.lang-menu li.sel {
  color: var(--brand-2); font-weight: 700;
  background: linear-gradient(90deg, rgba(124, 92, 255, .2), rgba(212, 168, 75, .16));
}

/* 首屏语言防闪：i18n 应用前隐藏正文（脚本异常时由内联脚本的 1.5s 兜底解除） */
html.i18n-pending body { visibility: hidden; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .menu-btn { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 60px; right: 18px;
    background: var(--bg-2); border: 1px solid var(--border); border-radius: 14px; padding: 16px 22px; gap: 14px;
  }
  .stat-row { grid-template-columns: repeat(2,1fr); }
  .grid-3, .grid-2, .ways, .tiers, .road { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 110px 1fr 56px; }
}

/* 超小屏（手机竖屏）进一步收紧间距，保证不横向溢出、按钮可点 */
@media (max-width: 600px) {
  section { padding: 64px 16px; }
  .nav-inner { padding: 10px 14px; gap: 8px; }
  /* 手机顶栏太挤：隐藏 LOGO 文字只保留图标，给语言/CTA/菜单留出空间 */
  .logo { font-size: 0; letter-spacing: 0; gap: 0; }
  .logo img { height: 32px; }
  .lang-drop-btn { padding: 6px 10px; font-size: 12px; }
  .nav-cta { padding: 7px 12px; font-size: 12px; }
  .menu-btn { padding: 6px 10px; font-size: 16px; }
  .nav-links.open { right: 10px; top: 56px; }
  .hero { padding-top: 96px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .stat-row { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat { padding: 18px 14px; }
  .stat .num { font-size: 24px; }
  .bar-row { grid-template-columns: 88px 1fr 46px; gap: 10px; }
  .bar-row .name { font-size: 13px; }
  h2.title { font-size: clamp(24px, 6vw, 34px); }
  .lead { font-size: 15px; }
  .cta-band { padding: 40px 18px; }
  .foot-inner { flex-direction: column; align-items: flex-start; }
  .card, .way, .tier, .phase { padding: 20px 18px; }
}