/* 外网营销站 + 下载页共用样式（静态） */
:root {
  --bg0: #070a12;
  --bg1: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --muted2: rgba(255, 255, 255, 0.58);
  --border: rgba(255, 255, 255, 0.12);
  --primary: #7c5cff;
  --primary2: #4fd1ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  --radius: 16px;
  --radius2: 22px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  background: radial-gradient(1200px 700px at 10% 10%, rgba(124,92,255,0.25), transparent 55%),
              radial-gradient(900px 600px at 85% 30%, rgba(79,209,255,0.22), transparent 60%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background:
    radial-gradient(600px 400px at 60% 0%, rgba(124,92,255,0.35), transparent 60%),
    radial-gradient(600px 400px at 20% 60%, rgba(79,209,255,0.22), transparent 60%);
  filter: blur(30px);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  margin: 0 auto;
  max-width: 1160px;
  backdrop-filter: blur(12px);
  background: rgba(7, 10, 18, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}
.nav-wrap { padding: 18px 14px 0; }

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.3px;
}
.logo-badge {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(124,92,255,1), rgba(79,209,255,1));
  box-shadow: 0 10px 26px rgba(124,92,255,0.35);
}
.logo small { font-weight: 600; color: var(--muted2); }

.nav nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav nav a {
  font-size: 14px;
  padding: 8px 10px;
  color: var(--muted);
  border-radius: 10px;
}
.nav nav a:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.nav nav a.is-active { background: rgba(255,255,255,0.08); color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255,255,255,0.02);
  transition: transform .08s ease, background .15s ease, border-color .15s ease;
  user-select: none;
  cursor: pointer;
}
.btn:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.18);
}
.btn:active { transform: translateY(0px); }
.btn-primary {
  border: 1px solid rgba(124,92,255,0.40);
  background: linear-gradient(135deg, rgba(124,92,255,0.95), rgba(79,209,255,0.85));
  box-shadow: 0 18px 50px rgba(124,92,255,0.28);
}
.btn-primary:hover { border-color: rgba(79,209,255,0.55); }
.btn-ghost { background: rgba(255,255,255,0.02); }
.btn-sm { padding: 9px 12px; font-size: 14px; border-radius: 11px; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 18px;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
  padding: 44px 0 14px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.70);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 10px 0 8px;
  font-size: 42px;
  line-height: 1.12;
  letter-spacing: -0.02em;
}
.lead { margin: 0; color: var(--muted); max-width: 56ch; }
.actions { margin-top: 18px; display: flex; gap: 12px; flex-wrap: wrap; }

.glass-card {
  border-radius: var(--radius2);
  border: 1px solid rgba(255,255,255,0.10);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  box-shadow: var(--shadow);
  padding: 18px;
}
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; color: rgba(255,255,255,0.70); font-size: 12px; margin: 0 0 12px; }
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.grid__cell {
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 12px 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.84);
}
.tagline { margin-top: 14px; color: var(--muted2); font-size: 14px; }

.stats {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.stat {
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  border-radius: 14px;
  padding: 12px;
}
.stat__value { font-weight: 800; font-size: 18px; display: block; }
.stat__label { color: var(--muted2); font-size: 12px; }

.section { padding: 34px 0; }
.section__header { margin-bottom: 18px; }
.section__header h2 { margin: 8px 0 0; font-size: 28px; letter-spacing: -0.01em; }
.section__lead { margin: 10px 0 0; color: var(--muted); max-width: 76ch; }

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.card {
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  padding: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.feature {
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  padding: 16px;
}
.feature__title { font-weight: 700; margin-bottom: 6px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }

.video__content iframe {
  width: 100%;
  height: 460px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.35);
}
.video__content { display: grid; gap: 12px; }

.cta__card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  background: linear-gradient(135deg, rgba(124,92,255,0.22), rgba(79,209,255,0.12));
  padding: 18px;
}
.cta__actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }

.footer {
  padding: 26px 0 34px;
  color: rgba(255,255,255,0.72);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.10);
  padding-top: 18px;
}
.footer__links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer__links a { color: rgba(255,255,255,0.70); }
.footer__links a:hover { color: rgba(255,255,255,0.92); }

/* 下载页 */
.page-title {
  padding: 26px 0 6px;
}
.page-title h1 { margin: 8px 0 6px; font-size: 34px; letter-spacing: -0.02em; }
.hint { color: var(--muted); margin: 0; }
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.03);
  color: rgba(255,255,255,0.72);
}
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.dl-card {
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  padding: 16px;
  display: grid;
  gap: 10px;
}
.dl-top { display: flex; gap: 12px; align-items: flex-start; }
.dl-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.dl-icon img { width: 100%; height: 100%; object-fit: cover; }
.dl-title { font-weight: 800; margin: 0; }
.dl-sub { margin: 2px 0 0; color: var(--muted2); font-size: 12px; }
.dl-desc { margin: 0; color: var(--muted); font-size: 14px; }
.dl-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.empty {
  margin: 16px 0;
  padding: 16px;
  border-radius: 18px;
  border: 1px dashed rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.72);
  background: rgba(255,255,255,0.02);
}

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .download-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta__card { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
  .nav { border-radius: 18px; }
  .hero h1 { font-size: 34px; }
  .cards { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: 1fr; }
  .video__content iframe { height: 260px; }
}