:root {
  --bg: #180d0a;
  --ink: #fff4ec;
  --muted: #c9a89a;
  --line: rgba(255, 255, 255, .14);
  --card: rgba(255, 255, 255, .05);
  --accent: #ffb457;
  --accent-2: #ff6b8a;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- background ---------- */
.bg-aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .5;
}

.orb-1 {
  width: 46vmax; height: 46vmax;
  left: -12vmax; top: -14vmax;
  background: radial-gradient(circle at 35% 35%, #f59e0b, transparent 62%);
  animation: drift 22s ease-in-out infinite;
}

.orb-2 {
  width: 40vmax; height: 40vmax;
  right: -10vmax; top: 6vmax;
  background: radial-gradient(circle at 60% 40%, #f43f5e, transparent 62%);
  animation: drift 27s ease-in-out infinite reverse;
}

.orb-3 {
  width: 34vmax; height: 34vmax;
  left: 22vmax; bottom: -16vmax;
  background: radial-gradient(circle at 50% 50%, #fb923c, transparent 65%);
  animation: drift 31s ease-in-out infinite;
}

@keyframes drift {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50%      { transform: translate3d(4vmax, 5vmax, 0) scale(1.12); }
}

/* ---------- layout ---------- */
.shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 620px;
}

.card {
  padding: 48px 44px 32px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  backdrop-filter: blur(22px);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .7),
              inset 0 1px 0 rgba(255, 255, 255, .09);
  text-align: center;
  animation: rise .8s cubic-bezier(.2, .7, .3, 1) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, .04);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: .04em;
}

.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #f59e0b;
  box-shadow: 0 0 0 0 rgba(245, 158, 11, .6);
  animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
  70%  { box-shadow: 0 0 0 9px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* ---------- logo ---------- */
.logo {
  width: 62px; height: 62px;
  margin: 26px auto 20px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .05);
  color: var(--accent);
}

.logo svg { width: 32px; height: 32px; }

/* ---------- type ---------- */
h1 {
  margin: 0 0 14px;
  font-size: clamp(26px, 5vw, 34px);
  font-weight: 650;
  letter-spacing: -.01em;
  background: linear-gradient(100deg, var(--ink), var(--accent) 45%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  margin: 0 auto 30px;
  max-width: 44ch;
  color: var(--muted);
  font-size: 15.5px;
}

/* ---------- meta ---------- */
.meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 0 28px;
  text-align: left;
}

.meta > div {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, .03);
}

.meta dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .05em;
}

.meta dd {
  margin: 0;
  font-size: 14.5px;
  font-weight: 550;
}

/* ---------- footer ---------- */
.foot {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.foot a { color: var(--accent); text-decoration: none; }
.foot a:hover { text-decoration: underline; }

.sep {
  width: 1px; height: 12px;
  background: var(--line);
}

/* ---------- responsive ---------- */
@media (max-width: 560px) {
  .card { padding: 36px 24px 26px; }
  .meta { grid-template-columns: 1fr; }
  .foot { flex-direction: column; gap: 6px; }
  .sep  { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}