/* ============================================
   SuperCue 公共基础样式 — 全站共享
   包含：CSS Reset、变量、字体、通用组件
   ============================================ */

/* --- Reset --- */
*,*::before,*::after{ margin: 0; padding: 0; box-sizing: border-box; }

/* --- 产品页主题变量（紫色系） --- */
:root {
  --primary: #7C3AED;
  --primary-light: #A78BFA;
  --primary-dark: #5B21B6;
  --primary-glow: rgba(124, 58, 237, 0.2);
  --bg: #F5F3FF;
  --surface: #FFFFFF;
  --surface-hover: #FAFAFA;
  --text: #1F2937;
  --text-muted: #6B7280;
  --border: #E5E7EB;
  --gradient-1: linear-gradient(135deg, #7C3AED 0%, #8B5CF6 100%);
  --gradient-2: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
}

/* --- 基础排版 --- */
html { overflow-x: hidden; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- 背景装饰 --- */
.bg-gradient {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, #F5F3FF 0%, #EDE9FE 50%, #DDD6FE 100%);
  pointer-events: none;
  z-index: 0;
}
.bg-grid {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* --- 动画 --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.8s ease-out forwards; }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.3; }
}

/* ============================================
   通用组件
   ============================================ */

/* --- 区块通用标题 --- */
.section-header {
  text-align: center;
  margin-bottom: 80px;
}
.section-header h2 {
  font-size: 48px;
  font-weight: 900;
  margin-bottom: 16px;
  color: var(--text);
}
.section-header p {
  font-size: 18px;
  color: var(--text-muted);
}

/* --- 主按钮 --- */
.btn-primary {
  flex: 1;
  padding: 18px 36px;
  background: var(--gradient-1);
  border: none;
  border-radius: 30px;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}
.btn-primary:hover::before { left: 100%; }
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.4);
}

/* --- 次按钮 --- */
.btn-secondary {
  flex: 1;
  padding: 18px 36px;
  background: transparent;
  border: 2px solid var(--border);
  border-radius: 30px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-secondary:hover {
  border-color: var(--primary);
  background: var(--surface);
  transform: translateY(-3px);
}

/* --- Toast --- */
#toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #fff;
  border: 1px solid var(--border);
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 14px;
  opacity: 0;
  transition: all 0.3s;
  z-index: 10000;
  box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}