/* 入口页 */
:root {
  --bg: #0c0a1d;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #a78bfa;
  --cyan: #22d3ee;
  --card: rgba(30, 27, 58, 0.75);
  --border: rgba(167, 139, 250, 0.15);
}

* { box-sizing: border-box; }
body.landing {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.landing-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 20% 10%, rgba(139, 92, 246, 0.28), transparent 50%),
    radial-gradient(ellipse 50% 40% at 90% 80%, rgba(34, 211, 238, 0.12), transparent 45%);
}

.landing-inner {
  position: relative;
  z-index: 1;
  max-width: 480px;
  margin: 0 auto;
  padding: 40px 20px 56px;
  text-align: center;
}

.landing-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.2);
  margin-bottom: 16px;
}

.landing h1 {
  margin: 0 0 10px;
  font-size: clamp(1.45rem, 4vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #f1f5f9, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing .lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.landing-cards {
  display: grid;
  gap: 12px;
}

/* 横向卡片：小图标在左，文案在右，避免图标占满整卡 */
.landing-cards a {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 14px;
  text-decoration: none;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  text-align: left;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.landing-cards a:hover {
  transform: translateY(-1px);
  border-color: rgba(167, 139, 250, 0.35);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
}

.landing-cards .ico {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(167, 139, 250, 0.1);
  border: 1px solid var(--border);
}

.landing-cards .ico svg,
.landing-ico-svg {
  width: 18px !important;
  height: 18px !important;
  max-width: 18px;
  max-height: 18px;
  color: var(--accent);
  display: block;
}

.landing-card-text {
  min-width: 0;
  flex: 1;
}

.landing-cards strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.landing-cards .desc {
  display: block;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.45;
}

.landing-foot {
  margin-top: 32px;
  font-size: 11px;
  color: var(--muted);
  opacity: 0.85;
}