/**
 * 主题：暖白古典（中国古典暖色系）
 */
:root {
  --bg: #faf8f5;
  --card-bg: #fff;
  --text: #2c2c2c;
  --text-dim: #888;
  --primary: #8b4513;
  --primary-light: #a0522d;
  --accent: #c0392b;
  --border: #e8e0d5;
}
body { background: var(--bg); color: var(--text); font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif; }
.navbar { background: var(--primary) !important; border-bottom: 2px solid var(--accent); }
.navbar-brand { font-weight: 700; letter-spacing: 0.05em; }
.navbar-brand i { color: #f5c842; }
.search-bar { max-width: 600px; margin: 60px auto 40px; }
.search-input { background: var(--card-bg) !important; border: 1px solid var(--border) !important; color: var(--text) !important; border-radius: 50px !important; padding: 14px 24px; font-size: 1.1rem; box-shadow: 0 2px 8px rgba(139,69,19,0.08); }
.search-input:focus { border-color: var(--primary) !important; box-shadow: 0 0 0 3px rgba(139,69,19,0.12); }
.search-btn { border-radius: 50px; background: var(--primary); border: none; }
.search-btn:hover { background: var(--primary-light); }
.category-bar { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 40px; }
.category-btn { background: var(--card-bg); border: 1px solid var(--border); color: var(--text-dim); border-radius: 20px; padding: 6px 16px; text-decoration: none; font-size: 0.9rem; transition: all 0.2s; }
.category-btn:hover, .category-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; text-decoration: none; color: var(--text); transition: all 0.25s; box-shadow: 0 1px 4px rgba(139,69,19,0.06); }
.card:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: 0 8px 24px rgba(139,69,19,0.12); }
.card-icon { width: 40px; height: 40px; border-radius: 8px; object-fit: contain; margin-bottom: 10px; }
.card-title { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.card-desc { font-size: 0.8rem; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.section-title { font-size: 1rem; color: var(--primary); margin: 32px 0 16px; padding-left: 8px; border-left: 4px solid var(--accent); font-weight: 700; }
.footer { text-align: center; color: var(--text-dim); font-size: 0.8rem; margin: 60px 0 20px; border-top: 1px solid var(--border); padding-top: 20px; }
.login-tip { text-align: center; color: var(--text-dim); margin-top: 60px; }
.login-tip a { color: var(--primary); text-decoration: none; }
.empty-state { text-align: center; color: var(--text-dim); padding: 60px 0; }