/* ============ 落地页 ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 14, 26, 0.72); border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 22px; height: 62px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-links a {
  color: var(--muted); font-size: 13.5px; font-weight: 600; padding: 8px 13px; border-radius: 9px;
  transition: color 0.25s, background 0.25s;
}
.nav-links a:hover { color: var(--text); background: var(--card-hover); }

.hero { max-width: 1080px; margin: 0 auto; padding: 84px 22px 40px; text-align: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 99px;
  border: 1px solid rgba(34,211,238,0.35); background: rgba(34,211,238,0.07);
  color: #7fe3f5; font-size: 12.5px; font-weight: 600; letter-spacing: 1px;
  animation: fadeUp 0.8s var(--ease) both;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }
.hero h1 {
  margin-top: 24px; font-size: clamp(34px, 6vw, 56px); font-weight: 800; line-height: 1.16;
  letter-spacing: -1px; animation: fadeUp 0.8s var(--ease) 0.08s both;
}
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.sub {
  margin-top: 18px; color: var(--muted); font-size: 15.5px; line-height: 1.8; max-width: 620px; margin-left: auto; margin-right: auto;
  animation: fadeUp 0.8s var(--ease) 0.16s both;
}
.hero-actions { margin-top: 34px; display: flex; gap: 12px; justify-content: center; animation: fadeUp 0.8s var(--ease) 0.24s both; }

.stats { max-width: 1080px; margin: 26px auto 0; padding: 0 22px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-card { padding: 22px; text-align: center; animation: fadeUp 0.7s var(--ease) both; }
.stat-card:nth-child(1) { animation-delay: 0.3s; }
.stat-card:nth-child(2) { animation-delay: 0.38s; }
.stat-card:nth-child(3) { animation-delay: 0.46s; }
.stat-card:nth-child(4) { animation-delay: 0.54s; }
.stat-num {
  font-size: 34px; font-weight: 800; letter-spacing: -0.5px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat-label { margin-top: 6px; color: var(--muted); font-size: 12.5px; letter-spacing: 1px; }

.section { max-width: 1080px; margin: 0 auto; padding: 64px 22px 8px; }
.section-title { font-size: 24px; font-weight: 800; letter-spacing: -0.3px; display: flex; align-items: center; gap: 10px; }
.section-title::before { content: ""; width: 5px; height: 22px; border-radius: 4px; background: var(--grad); }
.section-sub { color: var(--muted); margin-top: 8px; font-size: 14px; }

.notice-list { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.notice-item { display: flex; gap: 14px; align-items: flex-start; padding: 17px 20px; }
.notice-item .n-body { flex: 1; min-width: 0; }
.notice-item .n-title { font-weight: 700; font-size: 14.5px; }
.notice-item .n-content { color: var(--muted); font-size: 13.5px; margin-top: 5px; white-space: pre-wrap; line-height: 1.7; word-break: break-all; }
.notice-item .n-time { color: var(--dim); font-size: 12px; white-space: nowrap; margin-top: 2px; }

.query-box { margin-top: 22px; display: flex; gap: 10px; flex-wrap: wrap; }
.query-box .input { flex: 1; min-width: 240px; font-family: ui-monospace, Consolas, monospace; letter-spacing: 1px; text-transform: uppercase; }
.query-result { margin-top: 18px; display: none; animation: fadeUp 0.5s var(--ease); }
.query-result.show { display: block; }
.qr-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 13px; margin-top: 14px; }
.qr-item { padding: 14px 16px; border-radius: 12px; background: rgba(255,255,255,0.035); border: 1px solid var(--border); }
.qr-item .k { font-size: 11.5px; color: var(--dim); letter-spacing: 0.6px; }
.qr-item .v { margin-top: 5px; font-size: 15px; font-weight: 700; }
.qr-actions { margin-top: 15px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.steps { margin-top: 24px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { position: relative; padding: 26px 22px; }
.step .s-num {
  width: 36px; height: 36px; border-radius: 11px; background: var(--grad); color: #06121a;
  display: grid; place-items: center; font-weight: 900; font-size: 16px; box-shadow: 0 6px 18px rgba(34,211,238,0.3);
}
.step h3 { margin-top: 15px; font-size: 15.5px; }
.step p { margin-top: 8px; color: var(--muted); font-size: 13.5px; line-height: 1.75; }
.step code {
  background: rgba(34,211,238,0.1); color: #7fe3f5; padding: 1.5px 7px; border-radius: 6px;
  font-family: ui-monospace, Consolas, monospace; font-size: 12.5px;
}

.dl-card { margin-top: 22px; padding: 26px; display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.dl-info .d-name { font-weight: 800; font-size: 17px; display: flex; align-items: center; gap: 9px; }
.dl-info .d-meta { margin-top: 7px; color: var(--muted); font-size: 13px; display: flex; gap: 14px; flex-wrap: wrap; }

.footer { max-width: 1080px; margin: 70px auto 0; padding: 26px 22px 40px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; color: var(--dim); font-size: 12.5px; }
.footer a { color: var(--muted); }

@media (max-width: 860px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
  .nav-links a:not(.btn) { display: none; }
}