.stats-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-bottom:30px}.stat-card{background:white;border-radius:20px;padding:20px;display:flex;align-items:center;gap:16px;border:1px solid var(--gray-200);transition:all 0.3s}.stat-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,0.1)}.stat-icon{width:50px;height:50px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--primary-color)}.stat-value{font-size:1.6rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.75rem;color:var(--gray-500)}.input-section{margin-bottom:24px}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}.section-header h3{font-size:1rem;display:flex;align-items:center;gap:8px}.input-actions{display:flex;gap:8px}.input-wrapper{display:flex;gap:16px;align-items:center}.char-input{flex:1;padding:14px 20px;font-size:1.2rem;font-family:'Noto Serif SC',serif;border:2px solid var(--gray-300);border-radius:16px;min-height:60px;transition:all 0.3s}.char-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 4px rgba(59,130,246,0.1)}.query-btn{padding:14px 32px;font-size:1rem}.input-hint{margin-top:12px;font-size:0.75rem;color:var(--gray-500)}.result-section{background:white;border-radius:20px;border:1px solid var(--gray-200);overflow:hidden;margin-bottom:24px;animation:fadeIn 0.3s ease}.result-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:linear-gradient(135deg, var(--gray-50), #fafafa);border-bottom:1px solid var(--gray-200)}.result-header h3{font-size:1rem;display:flex;align-items:center;gap:8px}.result-actions{display:flex;gap:8px}.result-content{padding:20px;display:grid;grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));gap:20px}.char-card{background:var(--gray-50);border-radius:16px;padding:20px;text-align:center;transition:all 0.3s}.char-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(0,0,0,0.08)}.char-display{font-size:4rem;font-family:'Noto Serif SC',serif;color:var(--gray-800);margin-bottom:12px}.char-strokes{font-size:2rem;font-weight:700;color:var(--primary-color)}.char-strokes-label{font-size:0.75rem;color:var(--gray-500);margin-top:4px}.char-stroke-order{margin-top:12px;padding-top:12px;border-top:1px solid var(--gray-200);font-size:0.85rem;color:var(--gray-600)}.char-stroke-order strong{color:var(--gray-800)}.stroke-detail{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:8px}.stroke-item{display:inline-block;padding:4px 8px;background:white;border-radius:6px;font-size:0.75rem;color:var(--gray-600)}.stroke-item .stroke-char{font-size:1rem;font-family:'Noto Serif SC',serif;color:var(--gray-800)}.stroke-item .stroke-name{font-size:0.6rem;color:var(--gray-400)}.hot-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}.hot-btn{width:56px;height:56px;border-radius:16px;font-size:1.5rem;font-family:'Noto Serif SC',serif;background:var(--gray-50);border:1px solid var(--gray-200);cursor:pointer;transition:all 0.2s}.hot-btn:hover{background:var(--primary-color);color:white;border-color:var(--primary-color);transform:scale(1.05)}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-top:20px}.knowledge-card{background:var(--gray-50);border-radius:16px;padding:20px;text-align:center}.knowledge-card i{font-size:28px;color:var(--primary-color);margin-bottom:12px}.knowledge-card h4{font-size:0.85rem;margin-bottom:8px}.knowledge-card p{font-size:0.75rem;color:var(--gray-500);line-height:1.5}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.stats-grid{grid-template-columns:repeat(2, 1fr)}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}.result-content{grid-template-columns:repeat(auto-fill, minmax(200px, 1fr))}}@media (max-width:600px){.stats-grid{grid-template-columns:1fr}.input-wrapper{flex-direction:column}.query-btn{width:100%}.knowledge-grid{grid-template-columns:1fr}.hot-btn{width:44px;height:44px;font-size:1.2rem}}