:root {
  --bg-dark: #0a0a2e;
  --bg-mid: #0f0a35;
  --bg-accent: #1a0a3e;
  --bg-deep: #0d0825;

  --text-primary: #e8e0f0;
  --text-secondary: #a898c0;
  --text-muted: #6a5a80;

  --gold: #ffd764;
  --gold-light: #fff0c0;
  --gold-dark: #c8a030;

  --blue-light: #96dcff;
  --blue-mid: #5090d0;
  --blue-dark: #3050a0;

  --error: #ff5050;

  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: rgba(0, 0, 0, 0.3);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --font-main: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
  -webkit-user-select: none;
}

#app {
  width: 100%;
  height: 100%;
  position: relative;
}

.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px var(--glass-shadow);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-size: 16px;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all 0.3s ease;
  outline: none;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, rgba(255, 215, 100, 0.2), rgba(255, 180, 50, 0.15));
  border-color: rgba(255, 215, 100, 0.3);
  color: var(--gold-light);
}

.btn-primary:hover {
  background: linear-gradient(135deg, rgba(255, 215, 100, 0.3), rgba(255, 180, 50, 0.25));
  border-color: rgba(255, 215, 100, 0.5);
  box-shadow: 0 6px 25px rgba(255, 215, 100, 0.15);
}

.btn-glow {
  animation: btn-glow-pulse 2s ease-in-out infinite;
}

.btn-secondary {
  background: rgba(150, 200, 255, 0.08);
  border-color: rgba(150, 200, 255, 0.15);
  color: var(--blue-light);
}

.btn-secondary:hover {
  background: rgba(150, 200, 255, 0.15);
  border-color: rgba(150, 200, 255, 0.3);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  font-size: 18px;
}

.btn-icon-sm {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 50%;
  font-size: 16px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-icon-sm:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-back {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 18px;
  font-size: 13px;
}

.btn-action .btn-icon {
  font-size: 20px;
}

.btn-action .btn-label {
  font-size: 11px;
  color: var(--text-secondary);
}

@keyframes btn-glow-pulse {
  0%, 100% { box-shadow: 0 0 15px rgba(255, 215, 100, 0.1); }
  50% { box-shadow: 0 0 25px rgba(255, 215, 100, 0.25); }
}

.page {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  animation: page-fade-in 0.4s ease;
}

@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}