.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-textarea{width:100%;min-height:120px;padding:16px;font-family: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)}.input-tip{margin-top:8px;padding:6px 12px;background:#f0fdf4;border-radius:12px;font-size:0.7rem;color:#166534}.options-section{background:var(--gray-50);border-radius:20px;padding:20px;margin-bottom:24px}.options-section h3{font-size:1rem;margin-bottom:16px;display:flex;align-items:center;gap:8px}.options-grid{display:flex;flex-direction:column;gap:20px}.option-group label{display:block;font-size:0.75rem;color:var(--gray-500);margin-bottom:8px}.format-buttons,.js-buttons,.html-buttons{display:flex;flex-wrap:wrap;gap:8px}.format-btn,.js-btn,.html-btn{background:white;border:1px solid var(--gray-200);padding:6px 16px;border-radius:30px;font-size:0.75rem;cursor:pointer;transition:all 0.2s}.format-btn.active,.js-btn.active,.html-btn.active{background:var(--primary-color);border-color:var(--primary-color);color:white}.calc-section{text-align:center;margin:24px 0}.calc-btn{padding:12px 40px;font-size:1rem}.result-section{background:white;border-radius:20px;border:1px solid var(--gray-200);overflow:hidden;margin-bottom:32px;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}.encrypt-result{display:grid;grid-template-columns:repeat(2, 1fr);gap:16px;padding:20px}.result-card{background:var(--gray-50);border-radius:16px;padding:16px}.result-card.full-width{grid-column:span 2}.result-label{font-size:0.7rem;color:var(--gray-500);margin-bottom:8px}.result-value{font-family:'Fira Code',monospace;font-size:0.85rem;font-weight:500;color:var(--primary-color);word-break:break-all}.result-value.small{font-size:0.8rem;color:var(--gray-700)}.result-value.code{background:#1a1a2e;padding:8px 12px;border-radius:8px;color:#4ade80;font-size:0.75rem}.preview-section{padding:20px;border-top:1px solid var(--gray-200)}.preview-section h4{font-size:0.85rem;margin-bottom:12px}.preview-area{background:var(--gray-50);border-radius:16px;padding:20px;text-align:center;min-height:80px;display:flex;align-items:center;justify-content:center}.preview-placeholder{color:var(--gray-400)}.batch-panel{position:fixed;top:50%;left:50%;transform:translate(-50%, -50%);width:90%;max-width:700px;background:white;border-radius:24px;box-shadow:0 20px 60px rgba(0,0,0,0.3);z-index:1000;overflow:hidden;animation:fadeIn 0.3s ease}.batch-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:var(--gray-50);border-bottom:1px solid var(--gray-200)}.batch-header h4{font-size:1rem}.close-btn{background:transparent;border:none;cursor:pointer;font-size:1.2rem;color:var(--gray-500)}.batch-textarea{width:100%;min-height:200px;padding:16px;font-family:monospace;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.batch-actions{display:flex;gap:12px;padding:16px;border-top:1px solid var(--gray-200);flex-wrap:wrap}.batch-result{padding:16px;max-height:300px;overflow-y:auto;background:var(--gray-50)}.batch-result-item{padding:8px;border-bottom:1px solid var(--gray-200);font-family:monospace;font-size:0.8rem}.knowledge-section{margin-top:20px}.format-table{background:var(--gray-50);border-radius:16px;overflow:hidden;margin:16px 0}.table-header,.table-row{display:grid;grid-template-columns:120px 1fr 1.5fr 1fr;gap:12px;padding:12px 16px;border-bottom:1px solid var(--gray-200);font-size:0.75rem}.table-header{background:var(--gray-100);font-weight:600}.table-row:last-child{border-bottom:none}.table-row span{word-break:break-all}.warning-card{background:#fef3c7;border-radius:16px;padding:16px 20px;display:flex;gap:16px;margin-top:20px}.warning-card i{font-size:28px;color:#f59e0b}.warning-content strong{display:block;margin-bottom:6px;color:#92400e}.warning-content p{font-size:0.8rem;color:#78350f;line-height:1.5}@keyframes fadeIn{from{opacity:0;transform:translate(-50%, -40%)}to{opacity:1;transform:translate(-50%, -50%)}}@media (max-width:900px){.stats-grid{grid-template-columns:repeat(2, 1fr)}.encrypt-result{grid-template-columns:1fr}.result-card.full-width{grid-column:span 1}.table-header,.table-row{grid-template-columns:100px 1fr 1.2fr 0.8fr;font-size:0.7rem;gap:8px}}@media (max-width:600px){.stats-grid{grid-template-columns:1fr}.format-buttons,.js-buttons,.html-buttons{justify-content:center}.table-header,.table-row{grid-template-columns:1fr;gap:4px;text-align:center}}