/* 统一App下载页样式 */
:root {
  --primary-color: #007BFF;
  --secondary-color: #007BFF;
  --text-color: #fff;
  --bg-color: #0a0f1c;
  --subtitle-color: #fff;
  --hint-color: #fff;
  --footer-color: #ccc;
  --footer-opacity: 0.9;
  --footer-font-size: 0.8rem;
  --hint-font-size: 1rem;
  --logo-size: 100px;

  --logo-shadow: 0 6px 24px rgba(0, 198, 215, 0.28), 0 1.5px 6px rgba(0, 0, 0, 0.18);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.bg-anim {
  position: fixed;
  left: 0; top: 0; width: 100vw; height: 100vh;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-anim span {
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
  background: var(--primary-color);
  animation: float 12s linear infinite;
}
@keyframes float {
  0% { transform: translateY(0) scale(1);}
  100% { transform: translateY(-60vh) scale(1.2);}
}
.container {
  flex: 1;
  max-width: 400px;
  margin: 0 auto;
  padding: 2rem 1rem 0 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.app-logo {
  width: var(--logo-size);
  height: var(--logo-size);
  margin-bottom: 1.2rem;

}
.app-title {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 0.5rem 0 0.7rem 0;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  text-align: center;
  letter-spacing: 1px;
}
.app-subtitle {
  font-size: 1.1rem;
  color: var(--subtitle-color);
  text-align: center;
  margin-bottom: 2.2rem;
  font-weight: 400;
  letter-spacing: 0.5px;
}
.button {
  display: block;
  width: 100%;
  max-width: 280px;
  margin: 1rem auto 0 auto;
  padding: 1rem 2rem;
  border: none;
  border-radius: 100px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.18);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  letter-spacing: 1px;
}
.button.secondary {
  background: linear-gradient(90deg, #FF4081, #FF6B6B);
  margin-top: 1rem;
}
.button:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 6px 24px rgba(0, 123, 255, 0.28);
}
.hint {
  margin-top: 2.2rem;
  font-size: var(--hint-font-size);
  color: var(--hint-color);
  text-align: center;
}
.hint a {
  color: var(--primary-color);
  text-decoration: none;
  padding: 0 2px;
  transition: color 0.2s;
  font-weight: 600;
}
.hint a:hover {
  color: #fff;
}
.footer {
  text-align: center;
  padding: 1.2rem 0 0.2rem 0;
  font-size: var(--footer-font-size);
  color: var(--footer-color);
  opacity: var(--footer-opacity);
  width: 100%;
}
.footer a {
  color: var(--footer-color);
  text-decoration: none;
  transition: color 0.2s;
}
.footer a:hover {
  color: #fff;
}
.qr-code-wrap {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.qr-code {
  width: 120px;
  height: 120px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(48, 191, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: content-box;
}
.no-radius { border-radius: 0 !important; }
@media (max-width: 520px) {
  .container { max-width: 98vw; padding: 1.2rem 0.5rem 0 0.5rem; }
  .app-logo { width: 120px; height: 120px; border-radius: 50px; }
  .app-title { font-size: 1.7rem; }
  .app-subtitle { font-size: 1.1rem; }
  .button { font-size: 1.1rem; }
}