:root {
  --bg: #05060a;
  --fg: #e8ecf4;
  --muted: #8a93a6;
  --accent: #6c5ce7;
  --accent2: #00e0ff;
  --glow: #a98bff;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.10);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  overflow: hidden;
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  -webkit-font-smoothing: antialiased;
}

/* ---- 背景层 ---- */
#bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.aurora {
  position: fixed;
  inset: -20%;
  z-index: 0;
  background:
    radial-gradient(40% 40% at 20% 30%, rgba(108, 92, 231, 0.35), transparent 70%),
    radial-gradient(45% 45% at 80% 20%, rgba(0, 224, 255, 0.28), transparent 70%),
    radial-gradient(40% 40% at 60% 80%, rgba(255, 0, 153, 0.22), transparent 70%);
  filter: blur(40px);
  animation: drift 18s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes drift {
  0%   { transform: translate3d(-4%, -2%, 0) scale(1.05); }
  100% { transform: translate3d(4%, 3%, 0) scale(1.15); }
}

.grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 45%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 0%, transparent 75%);
  pointer-events: none;
}

/* ---- 主体 ---- */
.hero {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2.5rem;
  max-width: 720px;
  animation: rise 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--muted);
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  backdrop-filter: blur(8px);
}

.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2bd576;
  box-shadow: 0 0 0 0 rgba(43, 213, 118, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(43, 213, 118, 0.6); }
  70%  { box-shadow: 0 0 0 10px rgba(43, 213, 118, 0); }
  100% { box-shadow: 0 0 0 0 rgba(43, 213, 118, 0); }
}

.domain {
  font-size: clamp(3rem, 13vw, 7rem);
  font-weight: 700;
  line-height: 1;
  margin: 1.4rem 0 1rem;
  letter-spacing: -0.02em;
}

.domain .glow {
  background: linear-gradient(120deg, #fff, var(--glow), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px rgba(169, 139, 255, 0.35);
}

.domain .accent {
  background: linear-gradient(120deg, var(--accent2), #7af9ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.typewriter {
  font-family: var(--mono);
  color: var(--muted);
  font-size: clamp(0.85rem, 2.4vw, 1.05rem);
  min-height: 1.4em;
  margin-bottom: 2rem;
}

.typewriter::after {
  content: "▋";
  color: var(--accent2);
  animation: blink 1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.meta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.2rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  backdrop-filter: blur(8px);
  min-width: 110px;
}

.meta-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.meta-value {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--fg);
}

.meta-value.ok { color: #2bd576; }
.meta-value.accent { color: var(--accent2); }

.links {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--fg);
  text-decoration: none;
  background: var(--card);
  backdrop-filter: blur(8px);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 10px 30px rgba(108, 92, 231, 0.25);
}

.btn.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 10px 30px rgba(108, 92, 231, 0.4);
}

.btn.primary:hover { box-shadow: 0 14px 40px rgba(0, 224, 255, 0.4); }

.foot {
  margin-top: 2.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  display: flex;
  gap: 0.6rem;
  justify-content: center;
}

.foot strong { color: var(--fg); }
.foot .sep { opacity: 0.4; }

@media (max-width: 480px) {
  .meta { gap: 0.8rem; }
  .meta-item { min-width: 90px; padding: 0.6rem 0.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  .aurora, .badge .dot, .typewriter::after { animation: none; }
  .hero { animation: none; }
}