.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #8b5cf6, #6d28d9);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.feature-cards{display:flex;justify-content:center;gap:20px;margin-bottom:32px;flex-wrap:wrap}.feature-card{background:white;border-radius:20px;padding:16px 24px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200);transition:all 0.3s}.feature-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,0.1)}.feature-icon{width:48px;height:48px;background:linear-gradient(135deg, #ede9fe, #f5f3ff);border-radius:16px;display:flex;align-items:center;justify-content:center;color:#8b5cf6;font-size:1.3rem}.feature-info h4{font-size:0.9rem;margin-bottom:4px}.feature-info p{font-size:0.7rem;color:var(--gray-500)}.mode-tabs{display:flex;gap:12px;margin-bottom:28px;justify-content:center;flex-wrap:wrap}.mode-tab{background:transparent;border:none;padding:12px 24px;cursor:pointer;transition:all 0.3s;border-radius:60px;display:flex;align-items:center;gap:10px;font-weight:500;color:var(--gray-600)}.mode-tab i{font-size:1rem}.mode-tab.active{background:linear-gradient(135deg, #8b5cf6, #6d28d9);color:white;box-shadow:0 4px 12px rgba(139,92,246,0.3)}.encrypt-card,.file-card,.compare-card,.batch-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:28px;padding:24px;border:1px solid var(--gray-200)}.card-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-weight:600;flex-wrap:wrap}.action-chip{background:var(--gray-100);border:none;padding:6px 14px;border-radius:30px;font-size:0.75rem;cursor:pointer;transition:all 0.2s;color:var(--gray-600);display:inline-flex;align-items:center;gap:6px}.action-chip:hover{background:#8b5cf6;color:white}.encrypt-textarea{width:100%;min-height:150px;padding:16px;border:1px solid var(--gray-200);border-radius:20px;font-family:monospace;font-size:0.9rem;resize:vertical;margin-bottom:20px}.encrypt-textarea:focus{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 3px rgba(139,92,246,0.1)}.encrypt-options{display:flex;flex-wrap:wrap;gap:24px;margin-bottom:20px;padding:16px;background:var(--gray-50);border-radius:20px}.option-group label{display:block;font-size:0.7rem;font-weight:600;color:var(--gray-500);margin-bottom:8px}.option-buttons{display:flex;gap:10px}.opt-btn{background:white;border:1px solid var(--gray-200);padding:6px 16px;border-radius:30px;font-size:0.8rem;cursor:pointer;transition:all 0.2s}.opt-btn.active{background:#8b5cf6;border-color:#8b5cf6;color:white}.salt-input{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.salt-field{padding:8px 14px;border:1px solid var(--gray-200);border-radius:30px;font-size:0.8rem;width:200px}.encrypt-btn,.calc-btn,.compare-btn,.batch-encrypt-btn{width:100%;padding:14px;font-size:1rem;margin-bottom:20px}.result-card{background:var(--gray-50);border-radius:20px;overflow:hidden}.result-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:var(--gray-100);border-bottom:1px solid var(--gray-200)}.result-content{padding:20px;font-family:monospace;font-size:0.8rem;word-break:break-all;background:#1a1a2e;color:#e0e0e0;min-height:80px}.upload-area{border:2px dashed var(--gray-300);border-radius:24px;padding:40px;text-align:center;cursor:pointer;transition:all 0.3s;margin-bottom:20px}.upload-area:hover{border-color:#8b5cf6;background:var(--gray-50)}.upload-area i{font-size:48px;color:var(--gray-400);margin-bottom:12px}.upload-hint{font-size:0.7rem;color:var(--gray-400);margin-top:8px}.file-info{background:var(--gray-50);border-radius:16px;padding:16px;margin-bottom:20px}.info-row{display:flex;gap:12px;margin-bottom:8px}.info-row:last-child{margin-bottom:0}.info-label{width:80px;font-size:0.8rem;color:var(--gray-500)}.info-value{font-size:0.8rem;color:var(--gray-700);word-break:break-all}.progress-area{margin-bottom:20px}.progress-bar{height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg, #8b5cf6, #6d28d9);width:0%;transition:width 0.3s}.progress-text{text-align:center;font-size:0.7rem;margin-top:8px;color:var(--gray-500)}.compare-inputs{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;margin-bottom:24px}.compare-box .box-header{font-weight:600;margin-bottom:12px;color:var(--gray-700)}.compare-textarea{width:100%;min-height:120px;padding:12px;border:1px solid var(--gray-200);border-radius:16px;font-family:monospace;font-size:0.8rem;resize:vertical}.compare-vs{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;color:#8b5cf6}.compare-result-card{margin-top:20px;padding:16px;border-radius:20px;text-align:center}.compare-result-card.match{background:#d1fae5;color:#065f46}.compare-result-card.not-match{background:#fee2e2;color:#991b1b}.batch-header{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.batch-items{max-height:400px;overflow-y:auto;margin-bottom:20px}.batch-item{display:flex;gap:12px;margin-bottom:12px;align-items:center}.batch-item input{flex:1;padding:10px 14px;border:1px solid var(--gray-200);border-radius:16px;font-size:0.85rem}.batch-item input:focus{outline:none;border-color:#8b5cf6}.batch-item-actions{display:flex;gap:8px}.batch-item-actions button{background:transparent;border:none;padding:8px;cursor:pointer;color:var(--gray-500);border-radius:8px}.batch-item-actions button:hover{background:var(--gray-100);color:#8b5cf6}.batch-result-card{margin-top:20px}.batch-result-list{max-height:300px;overflow-y:auto}.batch-result-item{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;background:var(--gray-50);border-radius:12px;margin-bottom:8px;font-family:monospace;font-size:0.75rem}.knowledge-section{margin-top:40px;background:linear-gradient(135deg, #f5f3ff, #ede9fe);border-radius:28px;padding:24px}.knowledge-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-weight:600;color:#6d28d9}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px}.knowledge-card{background:white;border-radius:20px;padding:20px;text-align:center}.knowledge-card i{font-size:1.5rem;color:#8b5cf6;margin-bottom:10px}.knowledge-card h4{font-size:0.85rem;margin-bottom:8px}.knowledge-card p{font-size:0.7rem;color:var(--gray-500)}@media (max-width:900px){.compare-inputs{grid-template-columns:1fr}.compare-vs{display:none}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.feature-cards{gap:12px}.feature-card{padding:12px 18px}.feature-icon{width:40px;height:40px}.mode-tab{padding:8px 16px;font-size:0.85rem}.knowledge-grid{grid-template-columns:1fr}}