/* ============================================
   端午小游戏厅 — 共享样式表
   所有页面共用，改一处全站变
   ============================================ */

/* --- CSS 自定义属性（主题色） --- */
:root {
  --color-bg-start: #0a1f1a;
  --color-bg-end: #0d1321;
  --color-primary: #f5a623;
  --color-primary-hover: #ffc04d;
  --color-accent: #4a9e6b;
  --color-accent-light: #6bc48a;
  --color-card-bg: rgba(255, 255, 255, 0.07);
  --color-card-border: rgba(255, 255, 255, 0.12);
  --color-text: #e8e8e8;
  --color-text-muted: #a0aab8;
  --color-danger: #e74c3c;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
               "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: linear-gradient(135deg, var(--color-bg-start), var(--color-bg-end));
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  padding: 20px;
}

/* --- 渐变标题 --- */
.gradient-title {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  margin-bottom: 8px;
}

.subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 28px;
}

/* --- 导航栏 --- */
nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  background: rgba(255, 255, 255, 0.05);
  transition: background var(--transition), color var(--transition);
}

nav a:hover {
  background: var(--color-primary);
  color: #111;
}

/* --- 卡片容器（首页游戏入口） --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}

/* --- 毛玻璃卡片 --- */
.card {
  background: var(--color-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text);
  display: block;
}

.card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.card:active {
  transform: translateY(-2px) scale(0.98);
}

.card-icon {
  font-size: 2.8rem;
  margin-bottom: 12px;
}

.card h2 {
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* --- 通用按钮 --- */
.btn {
  display: inline-block;
  padding: 10px 28px;
  border: none;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  color: #111;
  background: var(--color-primary);
}

.btn:hover {
  transform: scale(1.06);
  box-shadow: 0 4px 20px rgba(245, 166, 35, 0.4);
  background: var(--color-primary-hover);
}

.btn:active {
  transform: scale(0.96);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text);
  border: 1px solid var(--color-card-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
}

/* --- 游戏容器（子页面通用） --- */
.game-container {
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius);
  padding: 30px 24px;
  box-shadow: var(--shadow);
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 10px;
}

.score-display {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* --- 返回链接 --- */
.back-link {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--color-primary);
}

/* --- 浮动动画（装饰用） --- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.float {
  animation: float 3s ease-in-out infinite;
}

/* --- 渐入动画 --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* --- 响应式 --- */
@media (max-width: 600px) {
  body { padding: 12px; }
  .gradient-title { font-size: 1.6rem; }
  .card-grid { grid-template-columns: 1fr; }
  .game-container { padding: 20px 16px; }
  nav a { font-size: 0.8rem; padding: 4px 12px; }
}