/* ===== 端午游园会 — 全局样式 ===== */

/* --- CSS 自定义属性（主题色） --- */
:root {
  --color-primary: #f59e0b;
  --color-primary-light: #fbbf24;
  --color-accent: #ef4444;
  --color-accent-dark: #b91c1c;
  --color-bg: #0f0f1a;
  --color-bg-card: #1a1a2e;
  --color-bg-card-hover: #222244;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-border: #2d2d4a;
  --color-success: #22c55e;
  --color-error: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --transition: 0.25s ease;
}

/* --- 基础重置 --- */
*, *::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, #0f0f1a 0%, #1a0a0a 50%, #0f0f1a 100%);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
  padding: 0 16px 40px;
}

/* --- 导航栏 --- */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px 0;
  flex-wrap: wrap;
  gap: 8px;
}

.navbar .logo {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar .nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.navbar .nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  transition: background var(--transition), color var(--transition);
}

.navbar .nav-links a:hover,
.navbar .nav-links a.active {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-primary-light);
}

/* --- 标题渐变 --- */
.gradient-title {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-align: center;
  margin-bottom: 24px;
}

/* --- 卡片容器 --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  text-decoration: none;
  color: var(--color-text);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.2);
  background: var(--color-bg-card-hover);
}

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

.card .icon {
  font-size: 2.8rem;
}

.card .title {
  font-size: 1.15rem;
  font-weight: 700;
}

.card .desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* --- 通用按钮 --- */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
}

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

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-primary);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* --- 内容容器 --- */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px 0;
}

/* --- 返回首页链接 --- */
.back-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 20px;
  transition: color var(--transition);
}

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

/* --- 响应式 --- */
@media (max-width: 600px) {
  body {
    padding: 0 12px 32px;
  }

  .gradient-title {
    font-size: 1.6rem;
  }

  .card-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .card {
    padding: 20px 14px;
  }

  .card .icon {
    font-size: 2.2rem;
  }

  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 400px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}