.card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 16px; padding: 32px; box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.search-section { margin-bottom: 24px; }
.search-bar { position: relative; margin-bottom: 24px; }
.search-input { width: 100%; padding: 16px 48px 16px 20px; font-size: 18px; border: 2px solid var(--border); border-radius: 12px; background: var(--bg-primary); color: var(--text-primary); transition: all 0.3s; }
.search-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
.clear-btn { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: var(--text-secondary); color: white; border: none; border-radius: 50%; width: 32px; height: 32px; cursor: pointer; display: none; }
.clear-btn.visible { display: block; }
.filters-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 16px; }
.filter-group label { display: block; font-size: 14px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.filter-select { width: 100%; padding: 12px; border: 2px solid var(--border); border-radius: 8px; background: var(--bg-primary); color: var(--text-primary); cursor: pointer; }
.reset-btn { padding: 12px 24px; background: var(--border); color: var(--text-primary); border: none; border-radius: 8px; cursor: pointer; font-weight: 600; align-self: end; }
.reset-btn:hover { background: var(--text-secondary); color: white; }
.results-stats { margin-bottom: 20px; padding: 12px; background: var(--bg-secondary); border-radius: 8px; font-size: 14px; color: var(--text-secondary); }
.results-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 20px; }
.word-card { background: var(--bg-secondary); border: 2px solid var(--border); border-radius: 12px; padding: 20px; transition: all 0.3s; }
.word-card:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(0,0,0,0.1); border-color: var(--accent); }
.word-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.word-title { font-size: 24px; font-weight: 700; color: var(--text-primary); }
.word-grade { background: var(--accent); color: white; padding: 4px 12px; border-radius: 6px; font-size: 12px; font-weight: 600; }
.word-phonetic { color: var(--text-secondary); font-style: italic; margin-bottom: 12px; }
.word-meaning { background: var(--bg-primary); padding: 12px; border-radius: 8px; margin-bottom: 12px; font-weight: 600; }
.word-example { font-size: 14px; line-height: 1.6; }
.word-example-en { color: var(--text-primary); margin-bottom: 4px; font-style: italic; }
.word-example-cn { color: var(--text-secondary); }
.word-audio-btn { background: var(--accent); color: white; border: none; border-radius: 8px; padding: 8px 16px; cursor: pointer; margin-top: 12px; font-size: 14px; }
.word-audio-btn:hover { opacity: 0.9; }
.no-results { grid-column: 1/-1; text-align: center; padding: 48px; color: var(--text-secondary); font-size: 18px; }
@media (max-width: 768px) { .filters-grid { grid-template-columns: 1fr; } .results-grid { grid-template-columns: 1fr; } }