:root {
  --bg: #0b0d10;
  --panel: #13161b;
  --line: rgba(255, 255, 255, 0.09);
  --text: #f4f4f5;
  --muted: #8b8f98;
  --faint: #5e636c;
  --orange: #ff7a45;
  --orange-soft: #ffb08f;
  --green: #0f3d3a;
  --amber: #f59e0b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(900px 520px at 50% -8%, rgba(255, 122, 69, 0.16), transparent 62%),
    radial-gradient(700px 460px at 8% 30%, rgba(15, 61, 58, 0.55), transparent 65%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 24px;
  background: rgba(11, 13, 16, 0.72);
  backdrop-filter: blur(20px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-icon { width: 28px; height: 28px; border-radius: 8px; }
.brand-word {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #c6c9cf;
}
.brand-word b { color: var(--orange-soft); font-weight: 800; }
.nav { display: flex; align-items: center; gap: 24px; }
.nav a { font-size: 12px; color: var(--muted); }
.nav a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 15px;
  border: 1px solid rgba(255, 122, 69, 0.42);
  border-radius: 999px;
  background: rgba(255, 122, 69, 0.08);
  color: var(--orange-soft) !important;
}

main { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: 76px 0 84px;
  text-align: center;
}
.hero-glow {
  position: absolute;
  left: 50%;
  top: -60px;
  width: 620px;
  height: 420px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(255, 122, 69, 0.16), transparent 68%);
  filter: blur(10px);
  pointer-events: none;
}
.hero-icon {
  position: relative;
  width: 104px;
  height: 104px;
  margin: 0 auto 26px;
  border-radius: 26px;
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.08);
}
.eyebrow {
  position: relative;
  margin: 0 0 16px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--orange);
}
h1, h2, h3 { margin: 0; }
h1 {
  position: relative;
  font-size: clamp(36px, 5.2vw, 60px);
  line-height: 1.16;
  letter-spacing: -0.045em;
  font-weight: 900;
}
.lede {
  position: relative;
  margin: 24px auto 0;
  max-width: 620px;
  color: #a6aab2;
  font-size: 15px;
  line-height: 1.95;
}
.hero-actions {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 0 26px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 800;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn.primary {
  background: var(--orange);
  color: #1a110c;
  box-shadow: 0 12px 34px rgba(255, 122, 69, 0.24);
}
.btn.primary:hover { background: #ff8a5a; }
.btn.ghost {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: #d4d4d8;
}
.arrow { font-size: 16px; line-height: 1; }
.meta {
  position: relative;
  margin: 20px 0 0;
  color: var(--faint);
  font-size: 11px;
  letter-spacing: 0.02em;
}

/* ---------- strip ---------- */
.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.strip div {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 22px 8px;
  text-align: center;
  border-right: 1px solid var(--line);
}
.strip div:last-child { border-right: 0; }
.strip strong { font-size: 19px; font-weight: 900; letter-spacing: -0.02em; }
.strip span { color: var(--muted); font-size: 10px; }

/* ---------- sections ---------- */
.section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.section-head { max-width: 680px; margin-bottom: 38px; }
.section h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.3;
  letter-spacing: -0.035em;
  font-weight: 900;
}

/* why */
.why-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.why-copy p { margin: 0 0 18px; color: var(--muted); font-size: 14px; line-height: 2; }
.why-quote {
  margin-top: 26px !important;
  padding-left: 16px;
  border-left: 2px solid var(--orange);
  color: #d9dbe0 !important;
  font-size: 15px !important;
  font-weight: 600;
}
.why-visual {
  position: relative;
  width: 250px;
  height: 440px;
  margin: 0 auto;
  padding: 7px;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #050607;
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.55);
  transform: rotate(2deg);
  overflow: hidden;
}
.why-visual img { border-radius: 25px; object-position: top center; }

/* cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
}
.card-no {
  position: absolute;
  top: 20px;
  right: 20px;
  color: #454950;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}
.card h3 { margin-top: 30px; font-size: 15px; }
.card p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.85; }

/* realms */
.ranks { text-align: left; }
.realm-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}
.realm {
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: #cfd2d7;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.realm.legend {
  border-color: rgba(245, 158, 11, 0.45);
  background: rgba(245, 158, 11, 0.1);
  color: #fcd34d;
}
.realm-note { margin: 24px 0 0; max-width: 560px; color: var(--muted); font-size: 12px; line-height: 1.9; }

/* trust */
.trust { border-bottom: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.trust-grid h3 { font-size: 14px; color: var(--orange-soft); }
.trust-grid p { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.9; }

/* download band */
.download-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}
.download-band h2 { font-size: clamp(26px, 3.2vw, 38px); }
.muted { margin: 10px 0 0; color: var(--muted); font-size: 11px; }

/* footer */
footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 44px 24px 62px;
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { border-radius: 9px; }
.footer-brand strong { display: block; font-size: 12px; }
.footer-brand p { margin: 4px 0 0; color: var(--faint); font-size: 10px; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); font-size: 11px; }
.footer-links a:hover { color: var(--text); }
.copyright {
  margin: 30px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: #4b4f57;
  font-size: 10px;
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .why-grid { grid-template-columns: 1fr; gap: 34px; }
  .why-visual { width: 230px; height: 405px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: 1fr; gap: 22px; }
}
@media (max-width: 640px) {
  .topbar { padding: 13px 16px; }
  .nav { gap: 12px; }
  .nav a:not(.nav-cta) { display: none; }
  main { padding: 0 16px; }
  .hero { padding: 48px 0 60px; }
  .hero-icon { width: 84px; height: 84px; border-radius: 21px; margin-bottom: 22px; }
  h1 { font-size: 36px; }
  .lede { font-size: 13px; }
  .desktop { display: none; }
  .strip { grid-template-columns: repeat(2, 1fr); }
  .strip div { padding: 18px 8px; }
  .strip div:nth-child(2) { border-right: 0; }
  .strip div:nth-child(1), .strip div:nth-child(2) { border-bottom: 1px solid var(--line); }
  .section { padding: 58px 0; }
  .cards { grid-template-columns: 1fr; }
  .download-band { flex-direction: column; align-items: flex-start; padding: 46px 0; }
  footer { padding: 34px 16px 48px; }
}