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

:root {
  --bg-deep: #0a0510;
  --bg-card: rgba(20, 8, 35, 0.85);
  --purple: #b84dff;
  --pink: #ff6ec7;
  --pink-glow: rgba(255, 110, 199, 0.55);
  --purple-glow: rgba(184, 77, 255, 0.45);
  --green: #3dff8a;
  --green-glow: rgba(61, 255, 138, 0.35);
  --text: #f5f0ff;
  --text-muted: rgba(245, 240, 255, 0.75);
  --border: rgba(184, 77, 255, 0.35);
  --border-soft: rgba(255, 255, 255, 0.08);
}

html {
  font-size: 16px;
}

body {
  min-height: 100vh;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.5;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(80px);
}

.bg-glow--left {
  width: 420px;
  height: 420px;
  top: -120px;
  left: -80px;
  background: radial-gradient(circle, rgba(120, 40, 200, 0.35) 0%, transparent 70%);
}

.bg-glow--right {
  width: 500px;
  height: 500px;
  bottom: -150px;
  right: -100px;
  background: radial-gradient(circle, rgba(200, 50, 150, 0.25) 0%, transparent 70%);
}

.page {
  position: relative;
  z-index: 1;
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

/* Hero */
.hero {
  text-align: center;
  margin-bottom: 36px;
}

.top-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 999px;
  border: 1px solid var(--pink);
  background: rgba(255, 110, 199, 0.08);
  box-shadow: 0 0 20px var(--pink-glow), inset 0 0 12px rgba(255, 110, 199, 0.1);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--pink);
  margin-bottom: 28px;
}

.top-badge i {
  font-size: 0.8rem;
}

.hero-title {
  font-size: clamp(2.8rem, 8vw, 4.2rem);
  font-weight: 900;
  letter-spacing: 0.06em;
  color: #fff;
  text-shadow:
    0 0 20px var(--purple-glow),
    0 0 40px var(--pink-glow),
    0 0 80px rgba(184, 77, 255, 0.3);
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.clock-bar {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  background: rgba(15, 5, 25, 0.7);
  border: 1px solid var(--border-soft);
  backdrop-filter: blur(8px);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.clock-bar i {
  color: var(--purple);
}

#clock {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  border-radius: 999px;
  border: 1px solid var(--purple);
  background: linear-gradient(135deg, rgba(184, 77, 255, 0.25) 0%, rgba(255, 110, 199, 0.15) 100%);
  box-shadow:
    0 0 24px var(--purple-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  font-size: 1rem;
  font-weight: 700;
  color: #ff3b3b;
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.download-btn i {
  font-size: 1.05rem;
  color: #ff3b3b;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 36px var(--pink-glow),
    0 0 48px var(--purple-glow);
  background: linear-gradient(135deg, rgba(184, 77, 255, 0.35) 0%, rgba(255, 110, 199, 0.25) 100%);
}

.download-btn:active {
  transform: translateY(0);
}

/* Status badges */
.status-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid rgba(61, 255, 138, 0.4);
  background: rgba(61, 255, 138, 0.06);
  box-shadow: 0 0 16px var(--green-glow);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--green);
}

.status-badge i {
  font-size: 1rem;
}

/* Compatibility panel */
.compat-panel {
  padding: 20px 24px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: rgba(25, 10, 45, 0.5);
  box-shadow: 0 0 30px rgba(184, 77, 255, 0.12);
  margin-bottom: 32px;
}

.compat-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.compat-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(10, 5, 20, 0.6);
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.compat-tag i {
  color: var(--purple);
  font-size: 0.85rem;
}

.compat-tag:hover {
  border-color: var(--border);
  box-shadow: 0 0 12px var(--purple-glow);
}

/* Feature cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 24px 26px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow:
    0 0 24px rgba(184, 77, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow:
    0 0 32px rgba(184, 77, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.card-header i {
  font-size: 1.1rem;
  color: var(--purple);
  width: 28px;
  text-align: center;
}

.card-header h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--purple);
  letter-spacing: 0.02em;
}

.card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.card-list li i {
  font-size: 0.7rem;
  color: var(--green);
  flex-shrink: 0;
}

/* Responsive */
@media (max-width: 640px) {
  .page {
    padding: 32px 16px 48px;
  }

  .status-row {
    flex-direction: column;
    align-items: center;
  }

  .status-badge {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .compat-tags {
    flex-direction: column;
    align-items: stretch;
  }

  .compat-tag {
    justify-content: center;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }
}