.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;flex-wrap:wrap}.input-textarea{width:100%;min-height:200px;padding:16px;font-family:'Fira Code',monospace;font-size:0.9rem;border:1px solid var(--gray-300);border-radius:16px;resize:vertical;background:#1a1a2e;color:#e0e0e0;line-height:1.6}.input-textarea:focus{outline:none;border-color:var(--primary-color)}.detect-btn{padding:6px 20px}.result-section{background:white;border-radius:20px;border:1px solid var(--gray-200);overflow:hidden;margin-bottom:32px;animation:fadeIn 0.3s ease}.top-chars,.chart-section,.duplicate-list,.all-chars,.deduped-text{padding:20px;border-bottom:1px solid var(--gray-200)}.top-chars h4,.chart-section h4,.duplicate-list h4,.all-chars h4,.deduped-text h4{font-size:0.9rem;margin-bottom:16px;color:var(--gray-700);display:flex;align-items:center;gap:8px}.top-chars-list{display:flex;flex-wrap:wrap;gap:16px}.top-char-item{background:linear-gradient(135deg, #667eea, #764ba2);border-radius:40px;padding:8px 20px;display:flex;align-items:center;gap:12px;color:white;transition:transform 0.2s}.top-char-item:hover{transform:scale(1.05)}.top-char-rank{font-size:1.2rem;font-weight:700;opacity:0.8}.top-char-value{font-size:1.2rem;font-weight:700;font-family:monospace}.top-char-count{background:rgba(255,255,255,0.2);padding:2px 8px;border-radius:20px;font-size:0.75rem}.chart-section{background:var(--gray-50)}.table-wrapper{overflow-x:auto;max-height:300px;overflow-y:auto}.detail-table{width:100%;border-collapse:collapse;font-size:0.8rem}.detail-table th,.detail-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--gray-200)}.detail-table th{background:var(--gray-50);font-weight:600;position:sticky;top:0}.detail-table td{font-family:monospace}.char-preview{background:#f0f4ff;padding:4px 12px;border-radius:12px;display:inline-block;font-weight:600}.remove-char-btn{background:#ef4444;color:white;border:none;padding:4px 10px;border-radius:6px;cursor:pointer;font-size:0.7rem;transition:all 0.2s}.remove-char-btn:hover{background:#dc2626}.deduped-content{background:var(--gray-50);border-radius:12px;padding:16px;font-family:monospace;font-size:0.85rem;word-break:break-all;margin-bottom:12px;max-height:150px;overflow-y:auto}.deduped-actions{display:flex;gap:12px}.options-section{background:var(--gray-50);border-radius:20px;padding:20px;margin-bottom:24px}.options-section h3{font-size:0.9rem;margin-bottom:16px;display:flex;align-items:center;gap:8px}.options-grid{display:flex;flex-wrap:wrap;gap:20px}.pagination{display:flex;justify-content:center;gap:8px;padding:16px}.page-btn{background:var(--gray-100);border:1px solid var(--gray-300);padding:4px 12px;border-radius:6px;cursor:pointer;font-size:0.75rem}.page-btn.active{background:var(--primary-color);color:white;border-color:var(--primary-color)}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-top:20px}@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)}}@media (max-width:600px){.stats-grid{grid-template-columns:1fr}.section-header{flex-direction:column;align-items:flex-start}.input-actions{width:100%}.knowledge-grid{grid-template-columns:1fr}.top-chars-list{justify-content:center}}