/* 移动端优先样式 */
:root {
  --bg: #0b0a10;
  --card: #12101a;
  --text: #ffffff;
  --muted: #cfc9dd;
  --primary: #a86bff;
  --primary-2: #ff66cc;
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial,
    'Apple Color Emoji', 'Segoe UI Emoji';
  background: radial-gradient(1200px 800px at 50% -10%, #1a1630 0%, #0b0a10 60%, #07060b 100%);
  color: var(--text);
}

.page {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 1rem 1.5rem 4rem;
}

.hero {
  text-align: center;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}
.logo-wrap {
  position: relative;
  width: 210px;
  max-width: 70vw;
  margin: 0px auto 0px;
}
.logo {
  width: 100%;
  height: auto;
  display: block;
}

.title {
  font-size: 26px;
  line-height: 1.5;
  margin: 6px 0 4px;
  letter-spacing: 0.2px;
}
.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  max-width: 65ch;
  margin-left: auto;
  margin-right: auto;
}

.cta {
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 auto;
}
.download-btn {
  display: inline-block;
  width: min(80vw, 560px);
  text-align: center;
  margin-top: 18px;
  padding: 14px 20px;
  border-radius: 14px;
  color: #0b0a10;
  font-weight: 700;
  text-decoration: none;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  box-shadow: 0 10px 30px rgba(168, 107, 255, 0.35), 0 6px 16px rgba(255, 102, 204, 0.35);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.download-btn:active {
  transform: translateY(1px) scale(0.99);
}

.hint {
  margin: 10px 0 0;
  font-size: 12px;
  color: #b8b3c8;
  text-align: center;
}

.footer {
  width: 100%;
  text-align: center;
  color: #9a95aa;
  font-size: 12px;
}

/* 大屏优化 */
@media (min-width: 768px) {
  .title {
    font-size: 36px;
  }
  .subtitle {
    font-size: 16px;
  }
  .logo-wrap {
    width: 260px;
  }
  .hero {
    max-width: 860px;
  }
}